docs/course-management-api-integration.md

@@ -1,479 +0,0 @@
-# Course Management API Integration Guide
-
-This document describes the Course Management related APIs used by the admin frontend (`Yimaru-Admin`) and how to integrate them safely.
-
-It is based on:
-- `src/api/courses.api.ts`
-- `src/api/files.api.ts`
-- `src/types/course.types.ts`
-- `src/api/http.ts`
-
----
-
-## 1) Base setup and auth behavior
-
-### Base URL
-- All requests use `VITE_API_BASE_URL` from environment.
-
-### Authentication
-- Access token is sent automatically as `Authorization: Bearer <access_token>`.
-- On `401`, the frontend attempts token refresh via:
-  - `POST /auth/refresh`
-  - payload: `{ access_token, refresh_token, role, member_id }`
-- If refresh fails, auth data is cleared and user is redirected to `/login`.
-
-### Transport notes
-- Axios automatically handles `multipart/form-data` boundaries for file upload.
-- Any network failure without response also redirects to `/login` (current client behavior).
-
----
-
-## 2) Core domain model used by frontend
-
-Current hierarchy used by content management:
-- `Category`
-  - `Sub-category`
-    - `Course`
-      - `Level (CEFR)`
-        - `Module`
-          - `Sub-module`
-            - `Videos`
-            - `Lessons` (question sets with `set_type = QUIZ`)
-            - `Practices` (question sets with `set_type = PRACTICE`)
-
-Important migration note:
-- Some APIs/types are marked as legacy (`Program`, old `Level/Module` flows).
-- Current frontend mostly uses unified hierarchy endpoints under `/course-management/...` plus `/question-sets` and `/questions`.
-
----
-
-## 3) File/media APIs (used by course management)
-
-## 3.1 Upload media
-
-### Endpoint
-- `POST /files/upload`
-
-### Supports
-- `media_type`: `"image" | "audio" | "video"`
-- File upload via multipart (`file`) or URL import via JSON (`source_url`).
-
-### For video uploads
-- Can send optional `title` and `description`.
-
-### Typical response fields used by frontend
-- `data.object_key`
-- `data.url`
-- `data.provider` (`MINIO` or `VIMEO`)
-- `data.vimeo_id`
-- `data.embed_url`
-
-### Frontend wrapper functions
-- `uploadAudioFile(fileOrUrl)`
-- `uploadImageFile(fileOrUrl)`
-- `uploadVideoFile(fileOrUrl, { title?, description? })`
-
-## 3.2 Resolve object key to URL
-
-### Endpoint
-- `GET /files/url?key=<object_key>`
-
-### Use case
-- Resolve media object key when only key is stored.
-
----
-
-## 4) Category and course APIs
-
-## 4.1 Get categories (normalized in frontend)
-
-### Endpoint called
-- `GET /course-management/hierarchy`
-
-### Frontend behavior
-- Client transforms flat hierarchy rows into category list.
-- Duplicated category names are merged client-side by "richest" record.
-
-### Wrapper
-- `getCourseCategories()`
-
-## 4.2 Create category or sub-category
-
-### Category
-- `POST /course-management/categories`
-- body: `{ name }`
-
-### Sub-category
-- `POST /course-management/sub-categories`
-- body: `{ category_id, name }`
-
-### Wrapper
-- `createCourseCategory({ name, parent_id? })`
-  - if `parent_id` exists, creates sub-category; else category.
-
-## 4.3 Delete category/sub-category
-- `DELETE /course-management/categories/:categoryId`
-- `DELETE /course-management/sub-categories/:subCategoryId`
-
-Wrappers:
-- `deleteCourseCategory(categoryId)`
-- `deleteCourseSubCategory(subCategoryId)`
-
-## 4.4 Courses by category
-
-### Endpoint called
-- `GET /course-management/hierarchy`
-
-### Frontend behavior
-- Filters and maps rows to courses client-side.
-- If duplicate category names exist, it includes rows matching requested category name.
-
-Wrapper:
-- `getCoursesByCategory(categoryId)`
-
-## 4.5 Course CRUD
-- `POST /course-management/courses`
-- `PUT /course-management/courses/:courseId`
-- `PUT /course-management/courses/:courseId` (status toggle via `is_active`)
-- `DELETE /course-management/courses/:courseId`
-- `POST /course-management/courses/:courseId/thumbnail`
-
-Wrappers:
-- `createCourse(data)`
-- `updateCourse(courseId, data)`
-- `updateCourseStatus(courseId, isActive)`
-- `deleteCourse(courseId)`
-- `updateCourseThumbnail(courseId, thumbnailUrl)`
-
----
-
-## 5) Course hierarchy (levels/modules/sub-modules)
-
-## 5.1 Get full hierarchy for one course
-
-### Endpoint
-- `GET /course-management/courses/:courseId/hierarchy`
-
-### Wrapper
-- `getSubModulesByCourse(courseId)`
-
-### Frontend behavior
-- Maps hierarchy rows into `sub_courses` shape (compatibility naming).
-- This is the primary source for module/sub-module tree rendering.
-
-## 5.2 Create sub-module flow (composed)
-
-`createSubModule(data)` is a multi-step client workflow:
-1. `POST /course-management/levels`
-2. `POST /course-management/modules`
-3. `POST /course-management/sub-modules`
-
-Use this when creating a new sub-module from minimal info.
-
-## 5.3 Direct level/module/sub-module creation
-- `createModuleInLevel(levelId, title, description, displayOrder?)`
-  - `POST /course-management/modules`
-- `createSubModuleInModule(moduleId, title, description, displayOrder?)`
-  - `POST /course-management/sub-modules`
-
-## 5.4 Update/delete sub-module
-- `PUT /course-management/sub-modules/:subModuleId`
-- `PUT /course-management/sub-modules/:subModuleId` (status payload)
-- `DELETE /course-management/sub-modules/:subModuleId`
-- `POST /course-management/sub-courses/:subModuleId/thumbnail` (compat endpoint)
-
-Wrappers:
-- `updateSubModule(...)`
-- `updateSubModuleStatus(...)`
-- `deleteSubModule(...)`
-- `updateSubModuleThumbnail(...)`
-
----
-
-## 6) Video APIs (sub-module videos)
-
-## 6.1 List videos for sub-module
-- `GET /course-management/sub-modules/:subModuleId/videos`
-- wrapper: `getVideosBySubModule(subModuleId)`
-
-## 6.2 Create video
-
-Two wrapper variants, same endpoint:
-- `POST /course-management/sub-module-videos`
-
-### Minimal variant
-- `createSubCourseVideo({ sub_module_id|sub_course_id, title, description, video_url })`
-
-### Extended variant
-- `createCourseVideo({ sub_module_id|sub_course_id, title, description, video_url, duration, resolution?, visibility?, display_order?, status? })`
-
-## 6.3 Update/delete video
-- `PUT /course-management/sub-module-videos/:videoId`
-- `DELETE /course-management/sub-module-videos/:videoId`
-
-Wrappers:
-- `updateSubCourseVideo(videoId, data)`
-- `deleteSubCourseVideo(videoId)`
-
----
-
-## 7) Practices and lessons
-
-## 7.1 Practices by sub-module
-- `GET /question-sets/by-owner?owner_type=SUB_MODULE&owner_id=:subModuleId`
-- wrapper: `getPracticesBySubModule(subModuleId)`
-
-## 7.2 Create practice (composed)
-
-`createPractice(data)` does:
-1. `POST /question-sets`
-   - `set_type: "PRACTICE"`
-   - `owner_type: "SUB_MODULE"`
-   - `owner_id: sub_module_id`
-2. If step 1 succeeds, links to sub-module practice:
-   - `POST /course-management/sub-module-practices`
-   - includes `question_set_id` and intro metadata
-
-## 7.3 Create lesson (composed)
-
-`createLesson(data)` does:
-1. `POST /question-sets`
-   - `set_type: "QUIZ"`
-   - `owner_type: "SUB_MODULE"`
-2. Link question set as lesson:
-   - `POST /course-management/sub-module-lessons`
-
-## 7.4 Practice update/delete/status
-- `PUT /course-management/practices/:practiceId`
-- `PUT /course-management/practices/:practiceId` (status)
-- `DELETE /course-management/practices/:practiceId`
-
-Wrappers:
-- `updatePractice(...)`
-- `updatePracticeStatus(...)`
-- `deletePractice(...)`
-
----
-
-## 8) Question sets and questions
-
-## 8.1 Question sets
-- `GET /question-sets` with optional query params
-- `GET /question-sets/by-owner`
-- `GET /question-sets/:id`
-- `PUT /question-sets/:id`
-- `DELETE /question-sets/:id`
-- `POST /question-sets`
-
-Wrappers:
-- `getQuestionSets(params?)`
-- `getQuestionSetsByOwner(ownerType, ownerId)`
-- `getQuestionSetById(questionSetId)`
-- `createQuestionSet(data)`
-- `updateQuestionSet(questionSetId, partialData)`
-- `deleteQuestionSet(questionSetId)`
-
-## 8.2 Question list within set
-- `GET /question-sets/:questionSetId/questions`
-- `POST /question-sets/:questionSetId/questions` (add by question id)
-
-Wrappers:
-- `getQuestionSetQuestions(questionSetId)`
-- `addQuestionToSet(questionSetId, { question_id, display_order? })`
-
-## 8.3 Questions CRUD
-- `GET /questions` (filters)
-- `GET /questions/:questionId`
-- `POST /questions`
-- `PUT /questions/:questionId`
-- `DELETE /questions/:questionId`
-
-Wrappers:
-- `getQuestions(params)`
-- `getQuestionById(questionId)`
-- `createQuestion(data)`
-- `updateQuestion(questionId, data)`
-- `deleteQuestion(questionId)`
-
-## 8.4 Practice-question convenience wrappers
-
-`createPracticeQuestion(data)`:
-1. Creates question via `POST /questions`
-2. Adds it to practice set via `POST /question-sets/:practiceId/questions`
-
-`updatePracticeQuestion(questionId, data)`:
-- maps to `PUT /questions/:questionId`
-
-`deletePracticeQuestion(questionId)`:
-- `DELETE /questions/:questionId`
-
-## 8.5 Practice question listing endpoint variants
-- `getPracticeQuestions(practiceId)` -> `GET /question-sets/:practiceId/questions`
-- `getPracticeQuestionsByPractice(practiceId, params)` -> `GET /practices/:practiceId/questions`
-
-Use the second when you need pagination/filtering by question type.
-
----
-
-## 9) Human language specific APIs
-
-## 9.1 Human language hierarchy
-- `getHumanLanguageHierarchy()`
-- Calls `GET /course-management/hierarchy`
-- If backend already returns nested `sub_categories`, uses it directly.
-- If backend returns flat rows, client builds nested structure and enriches each course by:
-  - requesting `/course-management/courses/:courseId/hierarchy`
-  - requesting `/question-sets/by-owner` per sub-module
-  - deriving lessons from question sets where `set_type = "QUIZ"`
-
-This method is heavier than basic endpoints and can issue many requests.
-
-## 9.2 Human language lessons by course+level
-- `GET /course-management/human-language/courses/:courseId/lessons?cefr_level=...`
-- wrapper: `getHumanLanguageLessonsByCourse(courseId, cefrLevel)`
-
-## 9.3 Create human language lesson structure
-
-`createHumanLanguageLesson(data)` is composed:
-1. `POST /course-management/levels`
-2. `POST /course-management/modules`
-3. `POST /course-management/sub-modules`
-
----
-
-## 10) Learning path and assessments
-
-- `GET /course-management/courses/:courseId/learning-path`
-  - wrapper: `getLearningPath(courseId)`
-
-- `GET /question-sets/sub-courses/:subModuleId/entry-assessment`
-  - wrapper: `getSubModuleEntryAssessment(subModuleId)`
-
----
-
-## 11) Unsupported or stubbed features in current frontend API layer
-
-The following wrappers are intentionally stubbed in frontend and return resolved promises (no real backend call):
-- `getSubModulePrerequisites`
-- `addSubModulePrerequisite`
-- `removeSubModulePrerequisite`
-- `reorderCategories`
-- `reorderCourses`
-- `reorderSubModules`
-- `reorderVideos`
-- `reorderPractices`
-
-Implication:
-- UI may appear to support these flows, but persistence is not implemented through backend yet.
-
----
-
-## 12) Legacy endpoints still exposed (backward compatibility)
-
-These are still present in `courses.api.ts` but marked deprecated in types:
-- Programs APIs
-- Old levels APIs
-- Old modules APIs
-- Practices by level/module APIs
-
-Prefer unified hierarchy/sub-module/question-set APIs for new work.
-
----
-
-## 13) Integration patterns and recommendations
-
-## 13.1 Safe creation flows
-- For practice/lesson creation, keep composed behavior:
-  - create question set first
-  - then link to sub-module entity
-- Handle partial failure:
-  - if link step fails after question set creation, frontend should show recoverable error and optionally support manual relink.
-
-## 13.2 Request normalization
-- `getQuestionSetsResponse.data` can be either:
-  - raw array
-  - object with `question_sets`
-- Normalize before rendering.
-
-## 13.3 Question type mapping
-- UI uses `"SHORT"`; backend commonly expects `"SHORT_ANSWER"`.
-- Existing wrappers already map `"SHORT"` to `"SHORT_ANSWER"` on create/update practice question.
-
-## 13.4 Media handling
-- Prefer using `/files/upload` wrappers for all media.
-- For Vimeo-backed responses, frontend typically consumes `embed_url` (and may append hash from page URL where applicable).
-
-## 13.5 Retry behavior
-- Some hierarchy fetches use single retry (`withSingleRetry`) for resiliency against transient auth/network race conditions.
-
----
-
-## 14) Quick endpoint index
-
-### Course management
-- `GET /course-management/hierarchy`
-- `POST /course-management/categories`
-- `POST /course-management/sub-categories`
-- `DELETE /course-management/categories/:id`
-- `DELETE /course-management/sub-categories/:id`
-- `POST /course-management/courses`
-- `PUT /course-management/courses/:id`
-- `DELETE /course-management/courses/:id`
-- `POST /course-management/courses/:id/thumbnail`
-- `GET /course-management/courses/:courseId/hierarchy`
-- `POST /course-management/levels`
-- `POST /course-management/modules`
-- `PUT /course-management/levels/:id`
-- `DELETE /course-management/levels/:id`
-- `PUT /course-management/modules/:id`
-- `DELETE /course-management/modules/:id`
-- `POST /course-management/sub-modules`
-- `PUT /course-management/sub-modules/:id`
-- `DELETE /course-management/sub-modules/:id`
-- `GET /course-management/sub-modules/:subModuleId/videos`
-- `POST /course-management/sub-module-videos`
-- `PUT /course-management/sub-module-videos/:id`
-- `DELETE /course-management/sub-module-videos/:id`
-- `POST /course-management/sub-module-practices`
-- `POST /course-management/sub-module-lessons`
-- `GET /course-management/courses/:courseId/learning-path`
-- `GET /course-management/human-language/courses/:courseId/lessons`
-
-### Question sets and questions
-- `GET /question-sets`
-- `GET /question-sets/by-owner`
-- `GET /question-sets/:id`
-- `POST /question-sets`
-- `PUT /question-sets/:id`
-- `DELETE /question-sets/:id`
-- `GET /question-sets/:id/questions`
-- `POST /question-sets/:id/questions`
-- `GET /practices/:practiceId/questions`
-- `GET /questions`
-- `GET /questions/:id`
-- `POST /questions`
-- `PUT /questions/:id`
-- `DELETE /questions/:id`
-- `POST /questions/audio-answer`
-
-### File/media
-- `POST /files/upload`
-- `GET /files/url`
-- `GET /vimeo/sample`
-- `POST /vimeo/uploads/pull`
-
----
-
-## 15) Suggested frontend service contract shape
-
-For any new frontend module, follow this contract:
-- **Input DTOs**: UI-friendly types (can include UI aliases like `SHORT`)
-- **Mapper layer**: convert UI DTOs to backend DTOs
-- **Transport layer**: pure API calls
-- **Normalizer layer**: normalize polymorphic responses (`array` vs `object`)
-- **Error policy**:
-  - show user-actionable toast
-  - preserve enough context to retry failed composed steps
-
-This keeps integration robust even with mixed legacy/unified backend surfaces.
-

src/api/courses.api.ts

@@ -44,69 +44,18 @@ import type {
   GetQuestionsResponse,
   CreateVimeoVideoRequest,
   CreateCourseCategoryRequest,
-  GetCategorySubCategoriesResponse,
-  GetSubCategoryCoursesResponse,
   GetSubCoursePrerequisitesResponse,
   AddSubCoursePrerequisiteRequest,
   GetLearningPathResponse,
   GetHumanLanguageLessonsResponse,
   GetHumanLanguageHierarchyResponse,
-  GetCourseHierarchyResponse,
   CreateHumanLanguageLessonRequest,
-  GetSubModuleLessonsResponse,
-  GetSubModuleLessonDetailResponse,
-  UpdateSubModuleLessonRequest,
-  UpdateSubModuleLessonResponse,
-  GetCourseLevelsForCourseResponse,
-  GetSubModulesByModuleResponse,
-  SubCourse,
   GetSubCourseEntryAssessmentResponse,
   ReorderItem,
   GetRatingsResponse,
   GetRatingsParams,
   GetVimeoSampleResponse,
   CreateCourseVideoRequest,
-  GetLearningProgramsResponse,
-  UpdateLearningProgramRequest,
-  CreateLearningProgramRequest,
-  CreateLearningProgramResponse,
-  GetProgramCoursesResponse,
-  GetTopLevelCourseModulesResponse,
-  UpdateTopLevelCourseRequest,
-  UpdateTopLevelCourseModuleRequest,
-  CreateTopLevelCourseModuleRequest,
-  CreateTopLevelCourseModuleResponse,
-  CreateProgramCourseRequest,
-  CreateProgramCourseResponse,
-  CreateExamPrepCatalogCourseRequest,
-  CreateExamPrepCatalogCourseResponse,
-  GetExamPrepCatalogCoursesResponse,
-  UpdateExamPrepCatalogCourseRequest,
-  UpdateExamPrepCatalogCourseResponse,
-  CreateExamPrepCatalogUnitRequest,
-  CreateExamPrepCatalogUnitResponse,
-  UpdateExamPrepCatalogUnitRequest,
-  UpdateExamPrepCatalogUnitResponse,
-  GetExamPrepCatalogUnitsResponse,
-  CreateExamPrepUnitModuleRequest,
-  CreateExamPrepUnitModuleResponse,
-  UpdateExamPrepUnitModuleRequest,
-  UpdateExamPrepUnitModuleResponse,
-  GetExamPrepUnitModulesResponse,
-  CreateExamPrepModuleLessonRequest,
-  CreateExamPrepModuleLessonResponse,
-  UpdateExamPrepModuleLessonRequest,
-  UpdateExamPrepModuleLessonResponse,
-  GetExamPrepModuleLessonsResponse,
-  GetTopLevelModuleLessonsResponse,
-  GetPracticesByParentContextResponse,
-  CreateParentLinkedPracticeRequest,
-  CreateParentLinkedPracticeResponse,
-  UpdateParentLinkedPracticeRequest,
-  UpdateParentLinkedPracticeResponse,
-  UpdateTopLevelModuleLessonRequest,
-  CreateTopLevelModuleLessonRequest,
-  CreateTopLevelModuleLessonResponse,
 } from "../types/course.types"
 
 type UnifiedHierarchyRow = {
@@ -161,35 +110,6 @@ export const createCourseCategory = (data: CreateCourseCategoryRequest) =>
     ? http.post("/course-management/sub-categories", { category_id: data.parent_id, name: data.name })
     : http.post("/course-management/categories", { name: data.name })
 
-export const deleteCourseCategory = (categoryId: number) =>
-  http.delete(`/course-management/categories/${categoryId}`)
-
-export const getSubCategoriesByCategoryId = (categoryId: number) =>
-  http.get<GetCategorySubCategoriesResponse>(`/course-management/categories/${categoryId}/sub-categories`)
-
-export const getCoursesBySubCategoryId = (subCategoryId: number) =>
-  http.get<GetSubCategoryCoursesResponse>(`/course-management/sub-categories/${subCategoryId}/courses`)
-
-export const createSubCategory = (payload: {
-  category_id: number
-  name: string
-  description?: string | null
-  display_order?: number
-}) => http.post("/course-management/sub-categories", payload)
-
-export const deleteCourseSubCategory = (subCategoryId: number) =>
-  http.delete(`/course-management/sub-categories/${subCategoryId}`)
-
-export const updateSubCategory = (
-  subCategoryId: number,
-  payload: Partial<{
-    name: string
-    description: string | null
-    is_active: boolean
-    display_order: number
-  }>,
-) => http.patch(`/course-management/sub-categories/${subCategoryId}`, payload)
-
 export const getCoursesByCategory = (categoryId: number) =>
   http.get("/course-management/hierarchy").then((res) => {
     const rows: UnifiedHierarchyRow[] = res.data?.data ?? []
@@ -228,13 +148,9 @@ export const updateCourse = (courseId: number, data: UpdateCourseRequest) =>
   http.put(`/course-management/courses/${courseId}`, data)
 
 // Sub-Module APIs (Unified Hierarchy)
-export const getCourseHierarchyByCourseId = (courseId: number) =>
-  http.get<GetCourseHierarchyResponse>(`/course-management/courses/${courseId}/hierarchy`)
-
 export const getSubModulesByCourse = (courseId: number) =>
   http.get(`/course-management/courses/${courseId}/hierarchy`).then((res) => {
-    const raw = res.data?.data
-    const rows: CourseHierarchyRow[] = Array.isArray(raw) ? raw : []
+    const rows: CourseHierarchyRow[] = res.data?.data ?? []
     const subModuleMap = new Map<number, { id: number; course_id: number; module_id?: number; title: string; description: string; level: string; cefr_level?: string; thumbnail: string; display_order: number; sub_level?: string; is_active: boolean }>()
     rows.forEach((r, idx) => {
       if (!r.sub_module_id) return
@@ -309,27 +225,6 @@ export const deleteSubModule = (subModuleId: number) =>
 export const getVideosBySubModule = (subModuleId: number) =>
   http.get<GetSubCourseVideosResponse>(`/course-management/sub-modules/${subModuleId}/videos`)
 
-export const getLessonsBySubModule = (subModuleId: number, options?: { includeInactive?: boolean }) =>
-  http.get<GetSubModuleLessonsResponse>(`/course-management/sub-modules/${subModuleId}/lessons`, {
-    params: { include_inactive: options?.includeInactive ?? true },
-  })
-
-export const getSubModuleLessonById = (
-  lessonId: number,
-  options?: { cacheBust?: boolean },
-) =>
-  http.get<GetSubModuleLessonDetailResponse>(`/course-management/sub-module-lessons/${lessonId}`, {
-    params: options?.cacheBust ? { _t: Date.now() } : undefined,
-  })
-
-export const updateSubModuleLesson = (lessonId: number, data: UpdateSubModuleLessonRequest) =>
-  http.put<UpdateSubModuleLessonResponse>(`/course-management/sub-module-lessons/${lessonId}`, data)
-
-export const softDeleteSubModuleLesson = (lessonId: number) =>
-  http.put<UpdateSubModuleLessonResponse>(`/course-management/sub-module-lessons/${lessonId}`, {
-    is_active: false,
-  })
-
 export const createSubCourseVideo = (data: CreateSubCourseVideoRequest) =>
   http.post("/course-management/sub-module-videos", {
     sub_module_id: data.sub_module_id ?? data.sub_course_id,
@@ -450,248 +345,6 @@ export const updatePracticeQuestion = (questionId: number, data: UpdatePracticeQ
 export const deletePracticeQuestion = (questionId: number) =>
   http.delete(`/questions/${questionId}`)
 
-/** Top-level learning programs (Learn English cards, etc.) — GET /programs */
-export const getLearningPrograms = (params?: { limit?: number; offset?: number }) =>
-  http.get<GetLearningProgramsResponse>("/programs", { params })
-
-export const createLearningProgram = (data: CreateLearningProgramRequest) =>
-  http.post<CreateLearningProgramResponse>("/programs", data)
-
-export const getProgramCourses = (
-  programId: number,
-  params?: { limit?: number; offset?: number },
-) => http.get<GetProgramCoursesResponse>(`/programs/${programId}/courses`, { params })
-
-export const createProgramCourse = (
-  programId: number,
-  data: CreateProgramCourseRequest,
-) => http.post<CreateProgramCourseResponse>(`/programs/${programId}/courses`, data)
-
-/** English proficiency catalog course — POST /exam-prep/catalog-courses */
-export const createExamPrepCatalogCourse = (
-  data: CreateExamPrepCatalogCourseRequest,
-) => http.post<CreateExamPrepCatalogCourseResponse>("/exam-prep/catalog-courses", data)
-
-/** English proficiency catalog courses — GET /exam-prep/catalog-courses */
-export const getExamPrepCatalogCourses = (params?: { limit?: number; offset?: number }) =>
-  http.get<GetExamPrepCatalogCoursesResponse>("/exam-prep/catalog-courses", { params })
-
-/** English proficiency catalog course — PUT /exam-prep/catalog-courses/:catalogCourseId */
-export const updateExamPrepCatalogCourse = (
-  catalogCourseId: number,
-  data: UpdateExamPrepCatalogCourseRequest,
-) =>
-  http.put<UpdateExamPrepCatalogCourseResponse>(
-    `/exam-prep/catalog-courses/${catalogCourseId}`,
-    data,
-  )
-
-/** English proficiency catalog course — DELETE /exam-prep/catalog-courses/:catalogCourseId */
-export const deleteExamPrepCatalogCourse = (catalogCourseId: number) =>
-  http.delete(`/exam-prep/catalog-courses/${catalogCourseId}`)
-
-/** English proficiency catalog unit — POST /exam-prep/catalog-courses/:catalogCourseId/units */
-export const createExamPrepCatalogUnit = (
-  catalogCourseId: number,
-  data: CreateExamPrepCatalogUnitRequest,
-) =>
-  http.post<CreateExamPrepCatalogUnitResponse>(
-    `/exam-prep/catalog-courses/${catalogCourseId}/units`,
-    data,
-  )
-
-/** English proficiency catalog units — GET /exam-prep/catalog-courses/:catalogCourseId/units */
-export const getExamPrepCatalogUnits = (
-  catalogCourseId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetExamPrepCatalogUnitsResponse>(
-    `/exam-prep/catalog-courses/${catalogCourseId}/units`,
-    { params },
-  )
-
-/** English proficiency unit — PUT /exam-prep/units/:unitId */
-export const updateExamPrepCatalogUnit = (
-  unitId: number,
-  data: UpdateExamPrepCatalogUnitRequest,
-) => http.put<UpdateExamPrepCatalogUnitResponse>(`/exam-prep/units/${unitId}`, data)
-
-/** English proficiency unit — DELETE /exam-prep/units/:unitId */
-export const deleteExamPrepCatalogUnit = (unitId: number) =>
-  http.delete(`/exam-prep/units/${unitId}`)
-
-/** English proficiency unit modules — POST /exam-prep/units/:unitId/modules */
-export const createExamPrepUnitModule = (
-  unitId: number,
-  data: CreateExamPrepUnitModuleRequest,
-) =>
-  http.post<CreateExamPrepUnitModuleResponse>(
-    `/exam-prep/units/${unitId}/modules`,
-    data,
-  )
-
-/** English proficiency unit modules — GET /exam-prep/units/:unitId/modules */
-export const getExamPrepUnitModules = (
-  unitId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetExamPrepUnitModulesResponse>(`/exam-prep/units/${unitId}/modules`, {
-    params,
-  })
-
-/** English proficiency module — PUT /exam-prep/modules/:moduleId */
-export const updateExamPrepUnitModule = (
-  moduleId: number,
-  data: UpdateExamPrepUnitModuleRequest,
-) =>
-  http.put<UpdateExamPrepUnitModuleResponse>(
-    `/exam-prep/modules/${moduleId}`,
-    data,
-  )
-
-/** English proficiency module — DELETE /exam-prep/modules/:moduleId */
-export const deleteExamPrepUnitModule = (moduleId: number) =>
-  http.delete(`/exam-prep/modules/${moduleId}`)
-
-/** English proficiency module lessons — GET /exam-prep/modules/:moduleId/lessons */
-export const getExamPrepModuleLessons = (
-  moduleId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetExamPrepModuleLessonsResponse>(
-    `/exam-prep/modules/${moduleId}/lessons`,
-    {
-      params,
-    },
-  )
-
-/** English proficiency module lesson — POST /exam-prep/modules/:moduleId/lessons */
-export const createExamPrepModuleLesson = (
-  moduleId: number,
-  data: CreateExamPrepModuleLessonRequest,
-) =>
-  http.post<CreateExamPrepModuleLessonResponse>(
-    `/exam-prep/modules/${moduleId}/lessons`,
-    data,
-  )
-
-/** English proficiency lesson — PUT /exam-prep/lessons/:lessonId */
-export const updateExamPrepModuleLesson = (
-  lessonId: number,
-  data: UpdateExamPrepModuleLessonRequest,
-) =>
-  http.put<UpdateExamPrepModuleLessonResponse>(
-    `/exam-prep/lessons/${lessonId}`,
-    data,
-  )
-
-/** English proficiency lesson — DELETE /exam-prep/lessons/:lessonId */
-export const deleteExamPrepModuleLesson = (lessonId: number) =>
-  http.delete(`/exam-prep/lessons/${lessonId}`)
-
-/** Top-level course resource (Learn English track) — PUT /courses/:id */
-export const updateTopLevelCourse = (courseId: number, data: UpdateTopLevelCourseRequest) =>
-  http.put(`/courses/${courseId}`, data)
-
-export const deleteTopLevelCourse = (courseId: number) =>
-  http.delete(`/courses/${courseId}`)
-
-export const getTopLevelCourseModules = (
-  courseId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetTopLevelCourseModulesResponse>(`/courses/${courseId}/modules`, {
-    params,
-  })
-
-/** Learn English top-level module — POST /courses/:courseId/modules */
-export const createTopLevelCourseModule = (
-  courseId: number,
-  data: CreateTopLevelCourseModuleRequest,
-) =>
-  http.post<CreateTopLevelCourseModuleResponse>(
-    `/courses/${courseId}/modules`,
-    data,
-  )
-
-/** Learn English top-level module — PUT /modules/:id */
-export const updateTopLevelCourseModule = (
-  moduleId: number,
-  data: UpdateTopLevelCourseModuleRequest,
-) => http.put(`/modules/${moduleId}`, data)
-
-/** Learn English top-level module — DELETE /modules/:id */
-export const deleteTopLevelCourseModule = (moduleId: number) =>
-  http.delete(`/modules/${moduleId}`)
-
-/** Learn English top-level module lessons — GET /modules/:moduleId/lessons */
-export const getModuleLessons = (
-  moduleId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetTopLevelModuleLessonsResponse>(`/modules/${moduleId}/lessons`, {
-    params,
-  })
-
-/** Learn English top-level module lesson — POST /modules/:moduleId/lessons */
-export const createModuleLesson = (
-  moduleId: number,
-  data: CreateTopLevelModuleLessonRequest,
-) =>
-  http.post<CreateTopLevelModuleLessonResponse>(`/modules/${moduleId}/lessons`, data)
-
-/** Learn English top-level module lesson — PUT /lessons/:id */
-export const updateTopLevelModuleLesson = (
-  lessonId: number,
-  data: UpdateTopLevelModuleLessonRequest,
-) => http.put(`/lessons/${lessonId}`, data)
-
-/** Learn English top-level module lesson — DELETE /lessons/:id */
-export const deleteTopLevelModuleLesson = (lessonId: number) =>
-  http.delete(`/lessons/${lessonId}`)
-
-/** GET /courses/:courseId/practices — practices linked to a top-level course (at most one in normal use). */
-export const getPracticesByParentCourse = (
-  courseId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetPracticesByParentContextResponse>(`/courses/${courseId}/practices`, { params })
-
-/** GET /modules/:moduleId/practices */
-export const getPracticesByParentModule = (
-  moduleId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetPracticesByParentContextResponse>(`/modules/${moduleId}/practices`, { params })
-
-/** GET /lessons/:lessonId/practices */
-export const getPracticesByParentLesson = (
-  lessonId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetPracticesByParentContextResponse>(`/lessons/${lessonId}/practices`, { params })
-
-/** POST /practices — create a practice (story + question set) for course / module / lesson. */
-export const createParentLinkedPractice = (data: CreateParentLinkedPracticeRequest) =>
-  http.post<CreateParentLinkedPracticeResponse>("/practices", data)
-
-/** PUT /practices/:id */
-export const updateParentLinkedPractice = (
-  practiceId: number,
-  data: UpdateParentLinkedPracticeRequest,
-) => http.put<UpdateParentLinkedPracticeResponse>(`/practices/${practiceId}`, data)
-
-/** DELETE /practices/:id */
-export const deleteParentLinkedPractice = (practiceId: number) =>
-  http.delete<{ message: string; success: boolean; status_code: number; metadata: unknown }>(
-    `/practices/${practiceId}`,
-  )
-
-export const updateLearningProgram = (programId: number, data: UpdateLearningProgramRequest) =>
-  http.put(`/programs/${programId}`, data)
-
-export const deleteLearningProgram = (programId: number) => http.delete(`/programs/${programId}`)
-
 // ============================================
 // Legacy APIs (deprecated - using SubCourse hierarchy now)
 // Keeping for backward compatibility
@@ -730,74 +383,6 @@ export const deleteLevel = (levelId: number) =>
 export const getModulesByLevel = (levelId: number) =>
   http.get<GetModulesResponse>(`/course-management/levels/${levelId}/modules`)
 
-export const getCourseLevelsForCourse = (courseId: number) =>
-  http.get<GetCourseLevelsForCourseResponse>(`/course-management/courses/${courseId}/levels`)
-
-export const getSubModulesByModuleId = (moduleId: number) =>
-  http.get<GetSubModulesByModuleResponse>(`/course-management/modules/${moduleId}/sub-modules`)
-
-/**
- * Finds a sub-module under a course by walking levels → modules → sub-modules APIs.
- */
-export async function resolveSubModuleForCourse(
-  courseId: number,
-  subModuleId: number,
-): Promise<SubCourse | null> {
-  try {
-    const levelsRes = await getCourseLevelsForCourse(courseId)
-    const levels = Array.isArray(levelsRes.data?.data?.levels) ? levelsRes.data.data.levels : []
-    const sortedLevels = [...levels].sort((a, b) => {
-      const o = (a.display_order ?? 0) - (b.display_order ?? 0)
-      if (o !== 0) return o
-      return String(a.cefr_level ?? "").localeCompare(String(b.cefr_level ?? ""))
-    })
-
-    const modulesNested = await Promise.all(
-      sortedLevels.map(async (level) => {
-        const modsRes = await getModulesByLevel(level.id)
-        const rawMods = modsRes.data?.data?.modules
-        const modules = Array.isArray(rawMods) ? rawMods : []
-        const sortedMods = [...modules].sort((a, b) => (a.display_order ?? 0) - (b.display_order ?? 0))
-        return sortedMods.map((module) => ({ level, module }))
-      }),
-    )
-    const modulePairs = modulesNested.flat()
-
-    const bundles = await Promise.all(
-      modulePairs.map(async ({ level, module }) => {
-        const subsRes = await getSubModulesByModuleId(module.id)
-        const rawSubs = subsRes.data?.data?.sub_modules
-        const subs = Array.isArray(rawSubs) ? rawSubs : []
-        const sortedSubs = [...subs].sort((a, b) => (a.display_order ?? 0) - (b.display_order ?? 0))
-        return { level, module, subs: sortedSubs }
-      }),
-    )
-
-    for (const { level, module, subs } of bundles) {
-      const found = subs.find((s) => s.id === subModuleId)
-      if (found) {
-        return {
-          id: found.id,
-          course_id: courseId,
-          level_id: level.id,
-          module_id: module.id,
-          title: found.title,
-          description: found.description ?? "",
-          level: level.cefr_level,
-          cefr_level: level.cefr_level,
-          thumbnail: found.thumbnail ?? "",
-          display_order: found.display_order,
-          sub_level: level.cefr_level,
-          is_active: found.is_active,
-        }
-      }
-    }
-  } catch (e) {
-    console.error("resolveSubModuleForCourse failed:", e)
-  }
-  return null
-}
-
 export const createModule = (data: CreateModuleRequest) =>
   http.post("/course-management/modules", data)
 

src/api/files.api.ts

@@ -25,16 +25,6 @@ export interface ResolveFileUrlResponse {
   success?: boolean
 }
 
-export interface RefreshFileUrlResponse {
-  message: string
-  data?: {
-    object_key?: string
-    url?: string
-    expires_in?: number
-  }
-  success?: boolean
-}
-
 export interface UploadMediaOptions {
   title?: string
   description?: string
@@ -44,36 +34,6 @@ export interface UploadMediaFromUrlPayload extends UploadMediaOptions {
   sourceUrl: string
 }
 
-const GOOGLE_DRIVE_HOSTS = new Set([
-  "drive.google.com",
-  "www.drive.google.com",
-])
-
-const getGoogleDriveFileId = (rawUrl: string): string | null => {
-  try {
-    const url = new URL(rawUrl.trim())
-    if (!GOOGLE_DRIVE_HOSTS.has(url.hostname.toLowerCase())) return null
-    const fromQuery = url.searchParams.get("id")?.trim()
-    if (fromQuery) return fromQuery
-    const fileMatch = url.pathname.match(/\/file\/d\/([^/]+)/i)
-    return fileMatch?.[1]?.trim() || null
-  } catch {
-    return null
-  }
-}
-
-const normalizeSourceUrlForUpload = (
-  mediaType: UploadMediaType,
-  sourceUrl: string,
-): string => {
-  const trimmed = sourceUrl.trim()
-  if (mediaType !== "image") return trimmed
-  const fileId = getGoogleDriveFileId(trimmed)
-  if (!fileId) return trimmed
-  // Use Drive thumbnail endpoint so backend receives actual image bytes, not HTML viewer.
-  return `https://drive.google.com/thumbnail?id=${encodeURIComponent(fileId)}&sz=w2048`
-}
-
 export const uploadMediaFile = (
   mediaType: UploadMediaType,
   file: File,
@@ -97,7 +57,7 @@ export const uploadMediaFromUrl = (
 ) =>
   http.post<UploadMediaResponse>("/files/upload", {
     media_type: mediaType,
-    source_url: normalizeSourceUrlForUpload(mediaType, payload.sourceUrl),
+    source_url: payload.sourceUrl,
     ...(mediaType === "video" && payload.title ? { title: payload.title } : {}),
     ...(mediaType === "video" && payload.description ? { description: payload.description } : {}),
   })
@@ -126,8 +86,3 @@ export const resolveFileUrl = (key: string) =>
     params: { key },
   })
 
-export const refreshFileUrl = (reference: string) =>
-  http.post<RefreshFileUrlResponse>("/files/refresh-url", {
-    reference,
-  })
-

src/api/http.ts

@@ -12,7 +12,6 @@ let failedQueue: Array<{
   resolve: (token: string) => void;
   reject: (error: Error) => void;
 }> = [];
-const TOKEN_REFRESH_BUFFER_SECONDS = 120;
 
 const processQueue = (error: Error | null, token: string | null = null) => {
   failedQueue.forEach((prom) => {
@@ -33,68 +32,23 @@ const clearAuthAndRedirect = () => {
   window.location.href = "/login";
 };
 
-const decodeJwtPayload = (token: string): Record<string, unknown> | null => {
-  try {
-    const payloadPart = token.split(".")[1];
-    if (!payloadPart) return null;
-    const normalized = payloadPart.replace(/-/g, "+").replace(/_/g, "/");
-    const padded = normalized.padEnd(Math.ceil(normalized.length / 4) * 4, "=");
-    const json = atob(padded);
-    return JSON.parse(json) as Record<string, unknown>;
-  } catch {
-    return null;
-  }
-};
-
-const isAccessTokenExpiringSoon = (token: string) => {
-  const payload = decodeJwtPayload(token);
-  const exp = Number(payload?.exp);
-  if (!Number.isFinite(exp)) return true;
-  const nowSeconds = Math.floor(Date.now() / 1000);
-  return exp - nowSeconds <= TOKEN_REFRESH_BUFFER_SECONDS;
-};
-
-const isAuthEndpointRequest = (url?: string) => {
-  if (!url) return false;
-  return (
-    url.includes("/team/login") ||
-    url.includes("/team/google-login") ||
-    url.includes("/team/refresh")
-  );
-};
-
-const ABSOLUTE_URL_REGEX = /^https?:\/\//i;
-
-const safeOrigin = (url?: string): string | null => {
-  if (!url) return null;
-  try {
-    return new URL(url).origin;
-  } catch {
-    return null;
-  }
-};
-
-const API_BASE_ORIGIN = safeOrigin(import.meta.env.VITE_API_BASE_URL);
-
-const shouldAttachApiAuth = (url?: string): boolean => {
-  if (!url) return true;
-  if (!ABSOLUTE_URL_REGEX.test(url)) return true;
-  const requestOrigin = safeOrigin(url);
-  if (!requestOrigin || !API_BASE_ORIGIN) return false;
-  return requestOrigin === API_BASE_ORIGIN;
-};
-
 const refreshAccessToken = async (): Promise<string> => {
+  const accessToken = localStorage.getItem("access_token");
   const refreshToken = localStorage.getItem("refresh_token");
+  const role = localStorage.getItem("role");
+  const memberId = localStorage.getItem("member_id");
 
-  if (!refreshToken) {
+  if (!refreshToken || !memberId) {
     throw new Error("No refresh token available");
   }
 
   const response = await axios.post(
-    `${import.meta.env.VITE_API_BASE_URL}/team/refresh`,
+    `${import.meta.env.VITE_API_BASE_URL}/auth/refresh`,
     {
+      access_token: accessToken,
       refresh_token: refreshToken,
+      role: role || "admin",
+      member_id: Number(memberId),
     }
   );
 
@@ -111,47 +65,9 @@ const refreshAccessToken = async (): Promise<string> => {
   return newAccessToken;
 };
 
-const getValidAccessToken = async (forceRefresh = false): Promise<string> => {
-  const currentToken = localStorage.getItem("access_token");
-  if (!forceRefresh && currentToken && !isAccessTokenExpiringSoon(currentToken)) {
-    return currentToken;
-  }
-
-  if (isRefreshing) {
-    return new Promise((resolve, reject) => {
-      failedQueue.push({ resolve, reject });
-    });
-  }
-
-  isRefreshing = true;
-  try {
-    const newToken = await refreshAccessToken();
-    processQueue(null, newToken);
-    return newToken;
-  } catch (refreshError) {
-    processQueue(refreshError as Error, null);
-    clearAuthAndRedirect();
-    throw refreshError;
-  } finally {
-    isRefreshing = false;
-  }
-};
-
 // Attach access token to every request
-http.interceptors.request.use(async (config) => {
-  if (!shouldAttachApiAuth(config.url)) {
-    return config;
-  }
-
-  if (isAuthEndpointRequest(config.url)) {
-    return config;
-  }
-
-  let token = localStorage.getItem("access_token");
-  if (token && isAccessTokenExpiringSoon(token)) {
-    token = await getValidAccessToken();
-  }
-
+http.interceptors.request.use((config) => {
+  const token = localStorage.getItem("access_token");
   if (token) {
     config.headers.Authorization = `Bearer ${token}`;
   }
@@ -164,25 +80,37 @@ http.interceptors.response.use(
   async (error: AxiosError) => {
     const originalRequest = error.config as InternalAxiosRequestConfig & { _retry?: boolean };
 
-    if (
-      error.response?.status === 401 &&
-      !originalRequest._retry &&
-      shouldAttachApiAuth(originalRequest.url) &&
-      !isAuthEndpointRequest(originalRequest.url)
-    ) {
+    if (error.response?.status === 401 && !originalRequest._retry) {
+      if (isRefreshing) {
+        return new Promise((resolve, reject) => {
+          failedQueue.push({ resolve, reject });
+        })
+          .then((token) => {
+            originalRequest.headers.Authorization = `Bearer ${token}`;
+            return http(originalRequest);
+          })
+          .catch((err) => Promise.reject(err));
+      }
+
       originalRequest._retry = true;
+      isRefreshing = true;
 
       try {
-        const newToken = await getValidAccessToken(true);
+        const newToken = await refreshAccessToken();
+        processQueue(null, newToken);
         originalRequest.headers.Authorization = `Bearer ${newToken}`;
         return http(originalRequest);
       } catch (refreshError) {
+        processQueue(refreshError as Error, null);
+        clearAuthAndRedirect();
         return Promise.reject(refreshError);
+      } finally {
+        isRefreshing = false;
       }
     }
 
     // Backend is down (network error, timeout, connection refused)
-    if (!error.response && shouldAttachApiAuth(originalRequest.url)) {
+    if (!error.response) {
       clearAuthAndRedirect();
       return Promise.reject(error);
     }

src/api/rbac.api.ts

@@ -5,7 +5,6 @@ import type {
   GetRolesParams,
   CreateRoleRequest,
   CreateRoleResponse,
-  DeleteRoleResponse,
   SetRolePermissionsRequest,
   GetPermissionsResponse,
 } from "../types/rbac.types"
@@ -27,6 +26,3 @@ export const setRolePermissions = (roleId: number, data: SetRolePermissionsReque
 
 export const getAllPermissions = () =>
   http.get<GetPermissionsResponse>("/rbac/permissions")
-
-export const deleteRole = (roleId: number) =>
-  http.delete<DeleteRoleResponse>(`/rbac/roles/${roleId}`)

src/app/AppRoutes.tsx

@@ -3,6 +3,7 @@ import { AppLayout } from "../layouts/AppLayout";
 import { DashboardPage } from "../pages/DashboardPage";
 import { AnalyticsPage } from "../pages/analytics/AnalyticsPage";
 import { ContentManagementLayout } from "../pages/content-management/ContentManagementLayout";
+import { CourseCategoryPage } from "../pages/content-management/CourseCategoryPage";
 import { AllCoursesPage } from "../pages/content-management/AllCoursesPage";
 import { CourseFlowBuilderPage } from "../pages/content-management/CourseFlowBuilderPage";
 import { ContentOverviewPage } from "../pages/content-management/ContentOverviewPage";
@@ -46,7 +47,7 @@ import { PracticeDetailsPage } from "../pages/content-management/PracticeDetails
 import { PracticeMembersPage } from "../pages/content-management/PracticeMembersPage";
 import { QuestionsPage } from "../pages/content-management/QuestionsPage";
 import { AddQuestionPage } from "../pages/content-management/AddQuestionPage";
-import { HumanLanguageHierarchyPage } from "../pages/content-management/HumanLanguageHierarchyPage";
+import { HumanLanguagePage } from "../pages/content-management/HumanLanguagePage";
 import { HumanLanguageSubModulePage } from "../pages/content-management/HumanLanguageSubModulePage";
 import { UserLogPage } from "../pages/user-log/UserLogPage";
 import { IssuesPage } from "../pages/issues/IssuesPage";
@@ -90,10 +91,10 @@ export function AppRoutes() {
         </Route>
 
         <Route path="/content" element={<ContentManagementLayout />}>
-          <Route index element={<Navigate to="practices" replace />} />
+          <Route index element={<CourseCategoryPage />} />
           <Route path="courses" element={<AllCoursesPage />} />
           <Route path="flows" element={<CourseFlowBuilderPage />} />
-          <Route path="human-language" element={<HumanLanguageHierarchyPage />} />
+          <Route path="human-language" element={<HumanLanguagePage />} />
           <Route
             path="human-language/:categoryId/:courseId/sub-module/:subModuleId/add-practice"
             element={<AddNewPracticePage />}

src/components/content-management/PracticeQuestionEditorFields.tsx

@@ -14,8 +14,6 @@ import { Select } from "../ui/select"
 import { Button } from "../ui/button"
 import { SpinnerIcon } from "../ui/spinner-icon"
 import { cn } from "../../lib/utils"
-import { ResolvedAudio } from "../media/ResolvedAudio"
-import { ResolvedImage } from "../media/ResolvedImage"
 
 export type PracticeQuestionEditorType = "MCQ" | "TRUE_FALSE" | "SHORT" | "AUDIO"
 export type PracticeQuestionEditorDifficulty = "EASY" | "MEDIUM" | "HARD"
@@ -817,7 +815,7 @@ export function PracticeQuestionEditorFields({
               disabled={controlsDisabled}
             />
             {voicePreviewUrl ? (
-              <ResolvedAudio controls src={voicePreviewUrl} className="h-10 w-full max-w-md" />
+              <audio controls src={voicePreviewUrl} className="h-10 w-full max-w-md" />
             ) : null}
           </div>
         </div>
@@ -864,7 +862,7 @@ export function PracticeQuestionEditorFields({
               disabled={controlsDisabled}
             />
             {samplePreviewUrl ? (
-              <ResolvedAudio controls src={samplePreviewUrl} className="h-10 w-full max-w-md" />
+              <audio controls src={samplePreviewUrl} className="h-10 w-full max-w-md" />
             ) : null}
           </div>
         </div>
@@ -900,7 +898,7 @@ export function PracticeQuestionEditorFields({
               disabled={controlsDisabled}
             />
             {imagePreviewUrl ? (
-              <ResolvedImage
+              <img
                 src={imagePreviewUrl}
                 alt=""
                 className="h-28 w-28 rounded-md border border-grayScale-200 object-cover"

src/components/media/ResolvedAudio.tsx

@@ -1,33 +0,0 @@
-import { useEffect, useState, type AudioHTMLAttributes } from "react"
-import { resolveDisplayMediaUrl } from "../../lib/mediaUrl"
-
-type ResolvedAudioProps = AudioHTMLAttributes<HTMLAudioElement> & {
-  src?: string | null
-}
-
-export function ResolvedAudio({ src, ...audioProps }: ResolvedAudioProps) {
-  const [resolvedSrc, setResolvedSrc] = useState("")
-
-  useEffect(() => {
-    let cancelled = false
-    ;(async () => {
-      const raw = (src ?? "").trim()
-      if (!raw) {
-        setResolvedSrc("")
-        return
-      }
-      try {
-        const next = await resolveDisplayMediaUrl(raw)
-        if (!cancelled) setResolvedSrc(next || raw)
-      } catch {
-        if (!cancelled) setResolvedSrc(raw)
-      }
-    })()
-    return () => {
-      cancelled = true
-    }
-  }, [src])
-
-  if (!resolvedSrc) return null
-  return <audio {...audioProps} src={resolvedSrc} />
-}

src/components/media/ResolvedImage.tsx

@@ -1,35 +0,0 @@
-import { useEffect, useState, type ImgHTMLAttributes } from "react"
-import { resolveDisplayMediaUrl } from "../../lib/mediaUrl"
-
-type ResolvedImageProps = ImgHTMLAttributes<HTMLImageElement> & {
-  src?: string | null
-  fallbackSrc?: string
-}
-
-export function ResolvedImage({ src, fallbackSrc, ...imgProps }: ResolvedImageProps) {
-  const [resolvedSrc, setResolvedSrc] = useState("")
-
-  useEffect(() => {
-    let cancelled = false
-    ;(async () => {
-      const raw = (src ?? "").trim()
-      if (!raw) {
-        setResolvedSrc("")
-        return
-      }
-      try {
-        const next = await resolveDisplayMediaUrl(raw)
-        if (!cancelled) setResolvedSrc(next || raw)
-      } catch {
-        if (!cancelled) setResolvedSrc(raw)
-      }
-    })()
-    return () => {
-      cancelled = true
-    }
-  }, [src])
-
-  const finalSrc = resolvedSrc || fallbackSrc || ""
-  if (!finalSrc) return null
-  return <img {...imgProps} src={finalSrc} />
-}

src/components/sidebar/Sidebar.tsx

@@ -12,7 +12,6 @@ import {
   UserCircle2,
   Users,
   Users2,
-  Settings,
   X,
 } from "lucide-react";
 import { type ComponentType, useEffect, useState } from "react";
@@ -40,7 +39,6 @@ const navItems: NavItem[] = [
   { label: "Analytics", to: "/analytics", icon: BarChart3 },
   { label: "Team Management", to: "/team", icon: Users2 },
   { label: "Profile", to: "/profile", icon: UserCircle2 },
-  { label: "Settings", to: "/settings", icon: Settings },
 ];
 
 type SidebarProps = {

src/components/topbar/Topbar.tsx

@@ -45,7 +45,7 @@ export function Topbar({ onSidebarToggle }: TopbarProps) {
   }
 
   return (
-    <header className="sticky top-0 z-40 flex h-16 items-center justify-between gap-3 border-b bg-grayScale-50/85 px-4 backdrop-blur lg:justify-end lg:px-6">
+    <header className="sticky top-0 z-10 flex h-16 items-center justify-between gap-3 border-b bg-grayScale-50/85 px-4 backdrop-blur lg:justify-end lg:px-6">
       {/* Sidebar toggle */}
       <button
         type="button"

src/layouts/AppLayout.tsx

@@ -1,18 +1,16 @@
-import { useState, useCallback, useEffect, useMemo, useRef } from "react"
-import { Navigate, Outlet, useLocation } from "react-router-dom"
+import { useState, useCallback } from "react"
+import { Navigate, Outlet } from "react-router-dom"
 import { Sidebar } from "../components/sidebar/Sidebar"
 import { Topbar } from "../components/topbar/Topbar"
 
 export function AppLayout() {
   const [sidebarOpen, setSidebarOpen] = useState(false)
   const [sidebarCollapsed, setSidebarCollapsed] = useState(false)
-  const mainRef = useRef<HTMLElement | null>(null)
-  const previousRouteKeyRef = useRef<string>("")
-  const location = useLocation()
-  const scrollStoragePrefix = "app:scroll:"
-  const routeKey = useMemo(() => `${location.pathname}${location.search}`, [location.pathname, location.search])
 
   const token = localStorage.getItem("access_token")
+  if (!token) {
+    return <Navigate to="/login" replace />
+  }
 
   const handleSidebarToggle = useCallback(() => {
     setSidebarOpen((prev) => !prev)
@@ -22,43 +20,6 @@ export function AppLayout() {
     setSidebarOpen(false)
   }, [])
 
-  useEffect(() => {
-    const container = mainRef.current
-    if (!container) return
-
-    const saveScroll = (key: string) => {
-      sessionStorage.setItem(`${scrollStoragePrefix}${key}`, String(container.scrollTop || 0))
-    }
-
-    const previousKey = previousRouteKeyRef.current
-    if (previousKey && previousKey !== routeKey) {
-      saveScroll(previousKey)
-    }
-    previousRouteKeyRef.current = routeKey
-
-    const restoreRaw = sessionStorage.getItem(`${scrollStoragePrefix}${routeKey}`)
-    const restoreTop = restoreRaw ? Number(restoreRaw) : 0
-    const top = Number.isFinite(restoreTop) && restoreTop > 0 ? restoreTop : 0
-    requestAnimationFrame(() => {
-      container.scrollTo({ top, behavior: "auto" })
-    })
-
-    const onScroll = () => saveScroll(routeKey)
-    const onBeforeUnload = () => saveScroll(routeKey)
-    container.addEventListener("scroll", onScroll, { passive: true })
-    window.addEventListener("beforeunload", onBeforeUnload)
-
-    return () => {
-      saveScroll(routeKey)
-      container.removeEventListener("scroll", onScroll)
-      window.removeEventListener("beforeunload", onBeforeUnload)
-    }
-  }, [routeKey])
-
-  if (!token) {
-    return <Navigate to="/login" replace />
-  }
-
   return (
     <div className="flex min-h-screen bg-grayScale-100">
       <Sidebar
@@ -73,7 +34,7 @@ export function AppLayout() {
         }`}
       >
         <Topbar onSidebarToggle={handleSidebarToggle} />
-        <main ref={mainRef} className="min-w-0 flex-1 overflow-x-hidden overflow-y-auto px-3 pb-8 pt-4 sm:px-4 lg:px-6">
+        <main className="min-w-0 flex-1 overflow-x-hidden overflow-y-auto px-3 pb-8 pt-4 sm:px-4 lg:px-6">
           <Outlet />
         </main>
         <footer className="border-t bg-grayScale-50 px-4 py-3 lg:px-6">

src/lib/mediaUrl.ts

@@ -1,40 +0,0 @@
-import { refreshFileUrl, resolveFileUrl } from "../api/files.api"
-
-const HTTP_REGEX = /^https?:\/\//i
-
-export function isHttpUrl(value: string): boolean {
-  return HTTP_REGEX.test(value.trim())
-}
-
-export function isSignedMinioUrl(value: string): boolean {
-  const trimmed = value.trim()
-  if (!isHttpUrl(trimmed)) return false
-  try {
-    const url = new URL(trimmed)
-    return (
-      url.host === "s3.yimaruacademy.com" &&
-      (url.searchParams.has("X-Amz-Signature") || url.searchParams.has("X-Amz-Expires"))
-    )
-  } catch {
-    return false
-  }
-}
-
-export async function resolveDisplayMediaUrl(value: string): Promise<string> {
-  const trimmed = value.trim()
-  if (!trimmed) return ""
-
-  if (isHttpUrl(trimmed)) {
-    if (!isSignedMinioUrl(trimmed)) return trimmed
-    try {
-      const refreshed = await refreshFileUrl(trimmed)
-      const refreshedUrl = refreshed.data?.data?.url?.trim()
-      return refreshedUrl || trimmed
-    } catch {
-      return trimmed
-    }
-  }
-
-  const resolved = await resolveFileUrl(trimmed)
-  return resolved.data?.data?.url?.trim() || ""
-}

src/lib/practiceMedia.ts

@@ -1,4 +1,4 @@
-import { resolveDisplayMediaUrl } from "./mediaUrl"
+import { resolveFileUrl } from "../api/files.api"
 
 export function normalizeObjectKey(value: string): string {
   const trimmed = value.trim()
@@ -12,7 +12,10 @@ export function normalizeObjectKey(value: string): string {
 }
 
 export async function resolveMediaPreviewUrl(value: string): Promise<string> {
-  const normalized = normalizeObjectKey(value)
-  if (!normalized) return ""
-  return resolveDisplayMediaUrl(normalized)
+  if (!value.trim()) return ""
+  if (value.startsWith("http://") || value.startsWith("https://")) return value
+  const key = normalizeObjectKey(value)
+  if (!key) return ""
+  const res = await resolveFileUrl(key)
+  return res.data?.data?.url ?? ""
 }

src/lib/sessionRole.ts

@@ -1,13 +0,0 @@
-const ADMIN_OR_SUPER: ReadonlySet<string> = new Set([
-  "admin",
-  "super_admin",
-]);
-
-/**
- * True when the stored session role is admin or super_admin (login stores `role` in localStorage).
- */
-export function isAdminOrSuperAdminRole(): boolean {
-  const raw = localStorage.getItem("role");
-  if (!raw) return false;
-  return ADMIN_OR_SUPER.has(raw.trim().toLowerCase());
-}

src/lib/videoPreview.ts

@@ -1,132 +0,0 @@
-/**
- * Resolves a user-facing video URL into something we can preview (iframe or <video>).
- */
-
-export function toVimeoEmbedUrl(rawUrl: string): string | null {
-  try {
-    const parsed = new URL(rawUrl.trim());
-    const host = parsed.hostname.toLowerCase();
-    if (!host.includes("vimeo.com")) return null;
-    if (host.includes("player.vimeo.com") && parsed.pathname.includes("/video/")) {
-      return parsed.toString();
-    }
-    const segments = parsed.pathname.split("/").filter(Boolean);
-    const videoId = segments.find((segment) => /^\d+$/.test(segment));
-    if (!videoId) return null;
-    // Vimeo private/unlisted links often come as /<videoId>/<hash> instead of ?h=<hash>.
-    const hashFromPath = (() => {
-      const videoIdx = segments.findIndex((segment) => segment === videoId);
-      if (videoIdx < 0) return null;
-      const maybeHash = segments[videoIdx + 1];
-      if (!maybeHash) return null;
-      return /^[a-zA-Z0-9]+$/.test(maybeHash) ? maybeHash : null;
-    })();
-    const hash = parsed.searchParams.get("h") || hashFromPath;
-    return hash
-      ? `https://player.vimeo.com/video/${videoId}?h=${encodeURIComponent(hash)}`
-      : `https://player.vimeo.com/video/${videoId}`;
-  } catch {
-    return null;
-  }
-}
-
-export function toYoutubeEmbedUrl(rawUrl: string): string | null {
-  try {
-    const u = new URL(rawUrl.trim());
-    const host = u.hostname.replace(/^www\./, "").toLowerCase();
-    if (host === "youtu.be") {
-      const id = u.pathname.split("/").filter(Boolean)[0];
-      if (id) return `https://www.youtube.com/embed/${id}`;
-    }
-    if (host === "youtube.com" || host === "m.youtube.com") {
-      const v = u.searchParams.get("v");
-      if (v) return `https://www.youtube.com/embed/${v}`;
-      let m = u.pathname.match(/\/embed\/([^/]+)/);
-      if (m) return `https://www.youtube.com/embed/${m[1]}`;
-      m = u.pathname.match(/\/shorts\/([^/]+)/);
-      if (m) return `https://www.youtube.com/embed/${m[1]}`;
-    }
-  } catch {
-    return null;
-  }
-  return null;
-}
-
-export function isDirectVideoFileUrl(url: string): boolean {
-  const clean = url.split("?")[0].toLowerCase();
-  return /^https?:\/\//.test(url.trim()) && /\.(mp4|webm|ogg|mov|m4v)$/.test(clean);
-}
-
-export type VideoPreviewKind =
-  | { kind: "iframe"; src: string; label: "Vimeo" | "YouTube" }
-  | { kind: "video"; src: string }
-  | { kind: "none" };
-
-export function getVideoPreview(url: string): VideoPreviewKind {
-  const t = url.trim();
-  if (!t) return { kind: "none" };
-  const vimeo = toVimeoEmbedUrl(t);
-  if (vimeo) return { kind: "iframe", src: vimeo, label: "Vimeo" };
-  const yt = toYoutubeEmbedUrl(t);
-  if (yt) return { kind: "iframe", src: yt, label: "YouTube" };
-  if (isDirectVideoFileUrl(t)) return { kind: "video", src: t };
-  return { kind: "none" };
-}
-
-/**
- * First N seconds only — embed “short” preview in admin cards / review, not the full file.
- * @see https://developers.google.com/youtube/player_parameters (end, start)
- */
-export const DEFAULT_PREVIEW_MAX_SECONDS = 60;
-
-export function formatPreviewLength(totalSeconds: number): string {
-  if (totalSeconds < 60) return `${totalSeconds} seconds`;
-  if (totalSeconds % 60 === 0) {
-    const m = totalSeconds / 60;
-    return m === 1 ? "1 minute" : `${m} minutes`;
-  }
-  return `${totalSeconds} seconds`;
-}
-
-/**
- * YouTube: `end` = stop after this many seconds from the start of the video.
- * Vimeo: time range in URL fragment (supported on many vimeo.com player links).
- */
-export function applyShortPreviewToEmbedUrl(
-  embedUrl: string,
-  label: "Vimeo" | "YouTube",
-  maxSeconds: number = DEFAULT_PREVIEW_MAX_SECONDS,
-): string {
-  try {
-    if (label === "YouTube") {
-      const u = new URL(embedUrl);
-      u.searchParams.set("start", "0");
-      u.searchParams.set("end", String(maxSeconds));
-      u.searchParams.set("rel", u.searchParams.get("rel") ?? "0");
-      return u.toString();
-    }
-    if (label === "Vimeo") {
-      const u = new URL(embedUrl);
-      u.searchParams.set("start", "0");
-      u.searchParams.set("end", String(maxSeconds));
-      u.hash = `t=0,${maxSeconds}`;
-      return u.toString();
-    }
-  } catch {
-    // fall through
-  }
-  return embedUrl;
-}
-
-/** Google Drive "view" links are not direct image URLs; use the thumbnail API for preview. */
-export function resolveThumbnailForPreview(
-  url: string | null | undefined,
-): string | null {
-  if (!url?.trim()) return null;
-  const t = url.trim();
-  const m = t.match(/\/file\/d\/([a-zA-Z0-9_-]+)/);
-  if (m) {
-    return `https://drive.google.com/thumbnail?id=${m[1]}&sz=w800`;
-  }
-  return t;
-}

src/pages/SettingsPage.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from "react";
+import { useEffect, useState } from "react";
 import {
   Bell,
   Eye,
@@ -13,43 +13,21 @@ import {
   Shield,
   Sun,
   User,
-  CreditCard,
-  AlertTriangle,
-  X,
 } from "lucide-react";
-import {
-  Card,
-  CardContent,
-  CardHeader,
-  CardTitle,
-} from "../components/ui/card";
+import { Card, CardContent, CardHeader, CardTitle } from "../components/ui/card";
 import { Input } from "../components/ui/input";
 import { Button } from "../components/ui/button";
 import { Select } from "../components/ui/select";
 import { Separator } from "../components/ui/separator";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from "../components/ui/dialog";
 import { cn } from "../lib/utils";
 import { SpinnerIcon } from "../components/ui/spinner-icon";
 import { getMyProfile, updateProfile } from "../api/users.api";
 import type { UserProfileData } from "../types/user.types";
 import { toast } from "sonner";
 
-type SettingsTab =
-  | "subscription"
-  | "profile"
-  | "security"
-  | "notifications"
-  | "appearance";
+type SettingsTab = "profile" | "security" | "notifications" | "appearance";
 
 const tabs: { id: SettingsTab; label: string; icon: typeof User }[] = [
-  { id: "subscription", label: "Subscription", icon: CreditCard },
   { id: "profile", label: "Profile", icon: User },
   { id: "security", label: "Security", icon: Shield },
   { id: "notifications", label: "Notifications", icon: Bell },
@@ -70,14 +48,14 @@ function Toggle({
       aria-checked={enabled}
       onClick={onToggle}
       className={cn(
-        "relative inline-flex h-5 w-9 shrink-0 cursor-pointer items-center rounded-full transition-colors focus-visible:outline-none",
-        enabled ? "bg-brand-500" : "bg-grayScale-200",
+        "relative inline-flex h-6 w-11 shrink-0 cursor-pointer items-center rounded-full transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-brand-500 focus-visible:ring-offset-2",
+        enabled ? "bg-brand-500" : "bg-grayScale-200"
       )}
     >
       <span
         className={cn(
-          "pointer-events-none inline-block h-3.5 w-3.5 rounded-full bg-white shadow-sm transition-transform",
-          enabled ? "translate-x-5" : "translate-x-0.5",
+          "pointer-events-none inline-block h-4 w-4 rounded-full bg-white shadow-sm transition-transform",
+          enabled ? "translate-x-6" : "translate-x-1"
         )}
       />
     </button>
@@ -90,20 +68,20 @@ function SettingRow({
   description,
   children,
 }: {
-  icon: any;
+  icon: typeof User;
   title: string;
   description: string;
   children: React.ReactNode;
 }) {
   return (
-    <div className="flex items-center justify-between gap-4 rounded-[6px] px-3 py-4 transition-colors hover:bg-grayScale-100/50">
+    <div className="flex items-center justify-between gap-4 rounded-lg px-3 py-4 transition-colors hover:bg-grayScale-100/50">
       <div className="flex items-start gap-3">
-        <div className="mt-0.5 flex h-9 w-9 shrink-0 items-center justify-center rounded-[6px] bg-grayScale-100 text-grayScale-400">
+        <div className="mt-0.5 flex h-9 w-9 shrink-0 items-center justify-center rounded-lg bg-grayScale-100 text-grayScale-400">
           <Icon className="h-4 w-4" />
         </div>
         <div>
-          <p className="text-sm font-medium text-grayScale-800">{title}</p>
-          <p className="mt-0.5 text-xs text-grayScale-500">{description}</p>
+          <p className="text-sm font-medium text-grayScale-600">{title}</p>
+          <p className="mt-0.5 text-xs text-grayScale-400">{description}</p>
         </div>
       </div>
       <div className="shrink-0">{children}</div>
@@ -111,143 +89,34 @@ function SettingRow({
   );
 }
 
-// --- Subscription Tab ---
-
-function SubscriptionTab() {
-  const [subs, setSubs] = useState([
-    {
-      id: "auto_renew",
-      name: "Auto-renewal",
-      desc: "Automatically renew your subscription when it expires",
-      enabled: true,
-    },
-    {
-      id: "marketing_emails",
-      name: "Marketing Emails",
-      desc: "Receive updates about new features and promotions",
-      enabled: true,
-    },
-    {
-      id: "priority_support",
-      name: "Priority Support",
-      desc: "Access 24/7 priority customer support",
-      enabled: true,
-    },
-  ]);
-
-  const [pendingToggle, setPendingToggle] = useState<string | null>(null);
-  const [showWarning, setShowWarning] = useState(false);
-
-  const handleToggle = (id: string) => {
-    const item = subs.find((s) => s.id === id);
-    if (item?.enabled) {
-      setPendingToggle(id);
-      setShowWarning(true);
-    } else {
-      setSubs((prev) =>
-        prev.map((s) => (s.id === id ? { ...s, enabled: true } : s)),
-      );
-    }
-  };
-
-  const confirmToggleOff = () => {
-    if (pendingToggle) {
-      setSubs((prev) =>
-        prev.map((s) =>
-          s.id === pendingToggle ? { ...s, enabled: false } : s,
-        ),
-      );
-      setShowWarning(false);
-      setPendingToggle(null);
-    }
-  };
-
+function LoadingSkeleton() {
   return (
-    <div className="space-y-6 animate-in fade-in slide-in-from-bottom-2 duration-300">
-      <Card className="border border-grayScale-100 rounded-[6px] overflow-hidden">
-        <CardHeader className="pb-3 border-b border-grayScale-50">
-          <CardTitle className="text-sm font-bold text-grayScale-900">
-            Subscription Features
-          </CardTitle>
-          <p className="text-[11px] text-grayScale-500">
-            Customize your subscription experience and management preferences
-          </p>
-        </CardHeader>
-        <CardContent className="space-y-0 p-0">
-          {subs.map((sub, idx) => (
-            <React.Fragment key={sub.id}>
-              <div
-                className={cn(
-                  "px-2",
-                  idx < subs.length - 1 && "border-b border-grayScale-50",
-                )}
-              >
-                <SettingRow
-                  icon={CreditCard}
-                  title={sub.name}
-                  description={sub.desc}
-                >
-                  <Toggle
-                    enabled={sub.enabled}
-                    onToggle={() => handleToggle(sub.id)}
-                  />
-                </SettingRow>
-              </div>
-            </React.Fragment>
+    <div className="mx-auto w-full max-w-5xl space-y-6 px-4 py-8 sm:px-6">
+      <div className="animate-pulse space-y-6">
+        <div className="h-7 w-32 rounded-lg bg-grayScale-100" />
+        <div className="flex gap-2">
+          {[1, 2, 3, 4].map((i) => (
+            <div key={i} className="h-10 w-28 rounded-lg bg-grayScale-100" />
           ))}
-        </CardContent>
-      </Card>
-
-      <Dialog open={showWarning} onOpenChange={setShowWarning}>
-        <DialogContent className="max-w-md p-0 overflow-hidden border border-grayScale-100 rounded-[12px] shadow-2xl">
-          <div className="relative p-8">
-            <div className="flex items-start gap-5 mb-6">
-              <div className="flex h-14 w-14 shrink-0 items-center justify-center rounded-full bg-red-50 text-red-500 border border-red-100">
-                <AlertTriangle className="h-7 w-7" />
+        </div>
+        <div className="rounded-2xl border border-grayScale-100 p-6">
+          <div className="space-y-6">
+            {[1, 2, 3, 4].map((j) => (
+              <div key={j} className="flex items-center justify-between">
+                <div className="space-y-2">
+                  <div className="h-4 w-32 rounded bg-grayScale-100" />
+                  <div className="h-3 w-48 rounded bg-grayScale-100" />
+                </div>
+                <div className="h-10 w-48 rounded-lg bg-grayScale-100" />
               </div>
-              <div className="pt-1">
-                <h3 className="text-xl font-bold text-grayScale-900 tracking-tight">
-                  Are you absolutely sure?
-                </h3>
-                <p className="text-sm text-grayScale-500 mt-1">
-                  Disabling this feature might limit your experience.
-                </p>
-              </div>
-            </div>
-
-            <div className="bg-grayScale-50/80 border border-grayScale-100 p-5 rounded-[8px] mb-8">
-              <p className="text-sm text-grayScale-600 leading-relaxed font-medium">
-                By turning this off, you will no longer receive the benefits
-                associated with this feature. Some changes might take up to 24
-                hours to reflect.
-              </p>
-            </div>
-
-            <div className="flex flex-col gap-3">
-              <Button
-                variant="destructive"
-                onClick={confirmToggleOff}
-                className="w-full rounded-[8px] py-6 text-sm font-bold bg-red-500 hover:bg-red-600 text-white border-none shadow-sm transition-all active:scale-[0.98]"
-              >
-                Yes, Disable Feature
-              </Button>
-              <Button
-                variant="outline"
-                onClick={() => setShowWarning(false)}
-                className="w-full rounded-[8px] py-6 text-sm font-bold border-grayScale-200 text-grayScale-600 hover:bg-grayScale-50 transition-all active:scale-[0.98]"
-              >
-                Cancel
-              </Button>
-            </div>
+            ))}
           </div>
-        </DialogContent>
-      </Dialog>
+        </div>
+      </div>
     </div>
   );
 }
 
-// --- Other Tabs (Existing, but with sidebar layout updates) ---
-
 function ProfileTab({ profile }: { profile: UserProfileData }) {
   const [firstName, setFirstName] = useState(profile.first_name);
   const [lastName, setLastName] = useState(profile.last_name);
@@ -273,88 +142,79 @@ function ProfileTab({ profile }: { profile: UserProfileData }) {
   };
 
   return (
-    <div className="space-y-6 animate-in fade-in slide-in-from-bottom-2 duration-300">
-      <Card className="border border-grayScale-100 rounded-[6px] overflow-hidden">
-        <div className="h-1 w-full bg-brand-500" />
-        <CardHeader className="pb-3 border-b border-grayScale-50">
-          <CardTitle className="text-sm font-bold text-grayScale-900">
-            Personal Information
-          </CardTitle>
+    <div className="space-y-6">
+      <Card className="border border-grayScale-100">
+        <div className="h-1 w-full bg-gradient-to-r from-brand-500 to-brand-600" />
+        <CardHeader className="pb-3">
+          <div className="flex items-center gap-3">
+            <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-gradient-to-br from-brand-500 to-brand-600 text-white shadow-sm">
+              <User className="h-4 w-4" />
+            </div>
+            <CardTitle className="text-base font-semibold tracking-tight text-grayScale-600">
+              Personal Information
+            </CardTitle>
+          </div>
         </CardHeader>
         <CardContent className="space-y-5 pb-6">
           <div className="grid gap-5 sm:grid-cols-2">
             <div className="space-y-1.5">
-              <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-                First Name
-              </label>
-              <Input
-                value={firstName}
-                onChange={(e) => setFirstName(e.target.value)}
-                className="rounded-[6px]"
-              />
+              <label className="text-xs font-medium text-grayScale-500">First Name</label>
+              <Input value={firstName} onChange={(e) => setFirstName(e.target.value)} />
             </div>
             <div className="space-y-1.5">
-              <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-                Last Name
-              </label>
-              <Input
-                value={lastName}
-                onChange={(e) => setLastName(e.target.value)}
-                className="rounded-[6px]"
-              />
+              <label className="text-xs font-medium text-grayScale-500">Last Name</label>
+              <Input value={lastName} onChange={(e) => setLastName(e.target.value)} />
             </div>
           </div>
           <div className="space-y-1.5">
-            <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-              Nickname
-            </label>
-            <Input
-              value={nickName}
-              onChange={(e) => setNickName(e.target.value)}
-              className="rounded-[6px]"
-            />
+            <label className="text-xs font-medium text-grayScale-500">Nickname</label>
+            <Input value={nickName} onChange={(e) => setNickName(e.target.value)} />
           </div>
         </CardContent>
       </Card>
 
-      <Card className="border border-grayScale-100 rounded-[6px] overflow-hidden">
-        <div className="h-1 w-full bg-brand-400" />
-        <CardHeader className="pb-3 border-b border-grayScale-50">
-          <CardTitle className="text-sm font-bold text-grayScale-900">
-            Preferences
-          </CardTitle>
+      <Card className="border border-grayScale-100">
+        <div className="h-1 w-full bg-gradient-to-r from-brand-400 to-brand-500" />
+        <CardHeader className="pb-3">
+          <div className="flex items-center gap-3">
+            <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-gradient-to-br from-brand-400 to-brand-500 text-white shadow-sm">
+              <Languages className="h-4 w-4" />
+            </div>
+            <CardTitle className="text-base font-semibold tracking-tight text-grayScale-600">
+              Preferences
+            </CardTitle>
+          </div>
         </CardHeader>
         <CardContent className="space-y-5 pb-6">
           <div className="grid gap-5 sm:grid-cols-2">
             <div className="space-y-1.5">
-              <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-                Preferred Language
-              </label>
-              <Select
-                value={language}
-                onChange={(e) => setLanguage(e.target.value)}
-                className="rounded-[6px]"
-              >
+              <label className="text-xs font-medium text-grayScale-500">Preferred Language</label>
+              <Select value={language} onChange={(e) => setLanguage(e.target.value)}>
                 <option value="en">English</option>
                 <option value="am">Amharic</option>
                 <option value="or">Afan Oromo</option>
                 <option value="ti">Tigrinya</option>
               </Select>
             </div>
+            <div className="space-y-1.5">
+              <label className="text-xs font-medium text-grayScale-500">Timezone</label>
+              <Select defaultValue="eat">
+                <option value="eat">East Africa Time (UTC+3)</option>
+                <option value="utc">UTC</option>
+                <option value="est">Eastern Time (UTC-5)</option>
+                <option value="pst">Pacific Time (UTC-8)</option>
+              </Select>
+            </div>
           </div>
         </CardContent>
       </Card>
 
       <div className="flex justify-end">
-        <Button
-          onClick={handleSave}
-          disabled={saving}
-          className="min-w-[140px] rounded-[6px] font-bold"
-        >
+        <Button onClick={handleSave} disabled={saving} className="min-w-[140px]">
           {saving ? (
             <SpinnerIcon className="h-4 w-4" />
           ) : (
-            <Save className="h-4 w-4 mr-2" />
+            <Save className="h-4 w-4" />
           )}
           {saving ? "Saving…" : "Save Changes"}
         </Button>
@@ -380,102 +240,96 @@ function SecurityTab() {
   };
 
   return (
-    <div className="space-y-6 animate-in fade-in slide-in-from-bottom-2 duration-300">
-      <Card className="border border-grayScale-100 rounded-[6px] overflow-hidden">
-        <div className="h-1 w-full bg-brand-600" />
-        <CardHeader className="pb-3 border-b border-grayScale-50">
-          <CardTitle className="text-sm font-bold text-grayScale-900">
-            Change Password
-          </CardTitle>
+    <div className="space-y-6">
+      <Card className="border border-grayScale-100">
+        <div className="h-1 w-full bg-gradient-to-r from-brand-600 to-brand-500" />
+        <CardHeader className="pb-3">
+          <div className="flex items-center gap-3">
+            <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-gradient-to-br from-brand-600 to-brand-500 text-white shadow-sm">
+              <KeyRound className="h-4 w-4" />
+            </div>
+            <CardTitle className="text-base font-semibold tracking-tight text-grayScale-600">
+              Change Password
+            </CardTitle>
+          </div>
         </CardHeader>
         <CardContent className="space-y-5 pb-6">
           <div className="space-y-1.5">
-            <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-              Current Password
-            </label>
+            <label className="text-xs font-medium text-grayScale-500">Current Password</label>
             <div className="relative">
-              <Input
-                type={showCurrent ? "text" : "password"}
-                placeholder="Enter current password"
-                className="rounded-[6px]"
-              />
+              <Input type={showCurrent ? "text" : "password"} placeholder="Enter current password" />
               <button
                 type="button"
                 onClick={() => setShowCurrent(!showCurrent)}
                 className="absolute right-3 top-1/2 -translate-y-1/2 text-grayScale-400 hover:text-grayScale-600"
               >
-                {showCurrent ? (
-                  <EyeOff className="h-4 w-4" />
-                ) : (
-                  <Eye className="h-4 w-4" />
-                )}
+                {showCurrent ? <EyeOff className="h-4 w-4" /> : <Eye className="h-4 w-4" />}
               </button>
             </div>
           </div>
           <div className="grid gap-5 sm:grid-cols-2">
             <div className="space-y-1.5">
-              <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-                New Password
-              </label>
+              <label className="text-xs font-medium text-grayScale-500">New Password</label>
               <div className="relative">
-                <Input
-                  type={showNew ? "text" : "password"}
-                  placeholder="Enter new password"
-                  className="rounded-[6px]"
-                />
+                <Input type={showNew ? "text" : "password"} placeholder="Enter new password" />
                 <button
                   type="button"
                   onClick={() => setShowNew(!showNew)}
                   className="absolute right-3 top-1/2 -translate-y-1/2 text-grayScale-400 hover:text-grayScale-600"
                 >
-                  {showNew ? (
-                    <EyeOff className="h-4 w-4" />
-                  ) : (
-                    <Eye className="h-4 w-4" />
-                  )}
+                  {showNew ? <EyeOff className="h-4 w-4" /> : <Eye className="h-4 w-4" />}
                 </button>
               </div>
             </div>
             <div className="space-y-1.5">
-              <label className="text-[11px] font-bold uppercase tracking-wider text-grayScale-400">
-                Confirm New Password
-              </label>
+              <label className="text-xs font-medium text-grayScale-500">Confirm New Password</label>
               <div className="relative">
-                <Input
-                  type={showConfirm ? "text" : "password"}
-                  placeholder="Confirm new password"
-                  className="rounded-[6px]"
-                />
+                <Input type={showConfirm ? "text" : "password"} placeholder="Confirm new password" />
                 <button
                   type="button"
                   onClick={() => setShowConfirm(!showConfirm)}
                   className="absolute right-3 top-1/2 -translate-y-1/2 text-grayScale-400 hover:text-grayScale-600"
                 >
-                  {showConfirm ? (
-                    <EyeOff className="h-4 w-4" />
-                  ) : (
-                    <Eye className="h-4 w-4" />
-                  )}
+                  {showConfirm ? <EyeOff className="h-4 w-4" /> : <Eye className="h-4 w-4" />}
                 </button>
               </div>
             </div>
           </div>
           <div className="flex justify-end">
-            <Button
-              onClick={handleChangePassword}
-              disabled={saving}
-              className="min-w-[160px] rounded-[6px] font-bold"
-            >
+            <Button onClick={handleChangePassword} disabled={saving} className="min-w-[160px]">
               {saving ? (
                 <SpinnerIcon className="h-4 w-4" />
               ) : (
-                <Lock className="h-4 w-4 mr-2" />
+                <Lock className="h-4 w-4" />
               )}
               {saving ? "Updating…" : "Update Password"}
             </Button>
           </div>
         </CardContent>
       </Card>
+
+      <Card className="border border-grayScale-100">
+        <div className="h-1 w-full bg-gradient-to-r from-brand-500 to-brand-400" />
+        <CardHeader className="pb-3">
+          <div className="flex items-center gap-3">
+            <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-gradient-to-br from-brand-500 to-brand-400 text-white shadow-sm">
+              <Shield className="h-4 w-4" />
+            </div>
+            <CardTitle className="text-base font-semibold tracking-tight text-grayScale-600">
+              Two-Factor Authentication
+            </CardTitle>
+          </div>
+        </CardHeader>
+        <CardContent className="pb-6">
+          <SettingRow
+            icon={Shield}
+            title="Enable 2FA"
+            description="Add an extra layer of security to your account"
+          >
+            <Toggle enabled={false} onToggle={() => toast.info("2FA coming soon")} />
+          </SettingRow>
+        </CardContent>
+      </Card>
     </div>
   );
 }
@@ -484,14 +338,20 @@ function NotificationsTab() {
   const [emailNotifs, setEmailNotifs] = useState(true);
   const [pushNotifs, setPushNotifs] = useState(true);
   const [loginAlerts, setLoginAlerts] = useState(true);
+  const [weeklyDigest, setWeeklyDigest] = useState(false);
 
   return (
-    <Card className="border border-grayScale-100 rounded-[6px] overflow-hidden animate-in fade-in slide-in-from-bottom-2 duration-300">
-      <div className="h-1 w-full bg-brand-500" />
-      <CardHeader className="pb-3 border-b border-grayScale-50">
-        <CardTitle className="text-sm font-bold text-grayScale-900">
-          Notification Preferences
-        </CardTitle>
+    <Card className="border border-grayScale-100">
+      <div className="h-1 w-full bg-gradient-to-r from-brand-500 to-brand-600" />
+      <CardHeader className="pb-3">
+        <div className="flex items-center gap-3">
+          <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-gradient-to-br from-brand-500 to-brand-600 text-white shadow-sm">
+            <Bell className="h-4 w-4" />
+          </div>
+          <CardTitle className="text-base font-semibold tracking-tight text-grayScale-600">
+            Notification Preferences
+          </CardTitle>
+        </div>
       </CardHeader>
       <CardContent className="space-y-1 pb-6">
         <SettingRow
@@ -499,32 +359,31 @@ function NotificationsTab() {
           title="Email Notifications"
           description="Receive important updates via email"
         >
-          <Toggle
-            enabled={emailNotifs}
-            onToggle={() => setEmailNotifs(!emailNotifs)}
-          />
+          <Toggle enabled={emailNotifs} onToggle={() => setEmailNotifs(!emailNotifs)} />
         </SettingRow>
-        <Separator className="bg-grayScale-50" />
+        <Separator />
         <SettingRow
           icon={Bell}
           title="Push Notifications"
           description="Get notified in the browser"
         >
-          <Toggle
-            enabled={pushNotifs}
-            onToggle={() => setPushNotifs(!pushNotifs)}
-          />
+          <Toggle enabled={pushNotifs} onToggle={() => setPushNotifs(!pushNotifs)} />
         </SettingRow>
-        <Separator className="bg-grayScale-50" />
+        <Separator />
         <SettingRow
           icon={Shield}
           title="Login Alerts"
           description="Get notified when someone logs into your account"
         >
-          <Toggle
-            enabled={loginAlerts}
-            onToggle={() => setLoginAlerts(!loginAlerts)}
-          />
+          <Toggle enabled={loginAlerts} onToggle={() => setLoginAlerts(!loginAlerts)} />
+        </SettingRow>
+        <Separator />
+        <SettingRow
+          icon={Globe}
+          title="Weekly Digest"
+          description="Receive a weekly summary of activity"
+        >
+          <Toggle enabled={weeklyDigest} onToggle={() => setWeeklyDigest(!weeklyDigest)} />
         </SettingRow>
       </CardContent>
     </Card>
@@ -535,12 +394,17 @@ function AppearanceTab() {
   const [theme, setTheme] = useState<"light" | "dark" | "system">("light");
 
   return (
-    <Card className="border border-grayScale-100 rounded-[6px] overflow-hidden animate-in fade-in slide-in-from-bottom-2 duration-300">
-      <div className="h-1 w-full bg-brand-400" />
-      <CardHeader className="pb-3 border-b border-grayScale-50">
-        <CardTitle className="text-sm font-bold text-grayScale-900">
-          Theme
-        </CardTitle>
+    <Card className="border border-grayScale-100">
+      <div className="h-1 w-full bg-gradient-to-r from-brand-400 to-brand-600" />
+      <CardHeader className="pb-3">
+        <div className="flex items-center gap-3">
+          <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-gradient-to-br from-brand-400 to-brand-600 text-white shadow-sm">
+            <Palette className="h-4 w-4" />
+          </div>
+          <CardTitle className="text-base font-semibold tracking-tight text-grayScale-600">
+            Theme
+          </CardTitle>
+        </div>
       </CardHeader>
       <CardContent className="pb-6">
         <div className="grid gap-3 sm:grid-cols-3">
@@ -556,18 +420,16 @@ function AppearanceTab() {
               type="button"
               onClick={() => setTheme(id)}
               className={cn(
-                "flex flex-col items-center gap-2.5 rounded-[6px] border-2 px-4 py-5 transition-all",
+                "flex flex-col items-center gap-2.5 rounded-xl border-2 px-4 py-5 transition-all",
                 theme === id
-                  ? "border-brand-500 bg-brand-50 text-brand-600 shadow-sm"
-                  : "border-grayScale-100 bg-white text-grayScale-400 hover:border-grayScale-200 hover:bg-grayScale-50",
+                  ? "border-brand-500 bg-brand-100/30 text-brand-600 shadow-sm"
+                  : "border-grayScale-100 bg-white text-grayScale-400 hover:border-grayScale-200 hover:bg-grayScale-100/40"
               )}
             >
               <div
                 className={cn(
-                  "flex h-10 w-10 items-center justify-center rounded-[6px]",
-                  theme === id
-                    ? "bg-brand-500 text-white"
-                    : "bg-grayScale-100 text-grayScale-400",
+                  "flex h-10 w-10 items-center justify-center rounded-lg",
+                  theme === id ? "bg-brand-500 text-white" : "bg-grayScale-100 text-grayScale-400"
                 )}
               >
                 <Icon className="h-5 w-5" />
@@ -582,7 +444,7 @@ function AppearanceTab() {
 }
 
 export function SettingsPage() {
-  const [activeTab, setActiveTab] = useState<SettingsTab>("subscription");
+  const [activeTab, setActiveTab] = useState<SettingsTab>("profile");
   const [profile, setProfile] = useState<UserProfileData | null>(null);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
@@ -602,27 +464,21 @@ export function SettingsPage() {
     fetchProfile();
   }, []);
 
-  if (loading) {
-    return (
-      <div className="flex h-[400px] items-center justify-center">
-        <SpinnerIcon className="h-8 w-8 text-brand-500" />
-      </div>
-    );
-  }
+  if (loading) return <LoadingSkeleton />;
 
   if (error || !profile) {
     return (
       <div className="mx-auto w-full max-w-5xl px-4 py-16 sm:px-6">
-        <Card className="border-dashed border-grayScale-200 rounded-[6px]">
+        <Card className="border-dashed">
           <CardContent className="flex flex-col items-center gap-5 p-12">
             <div className="flex h-20 w-20 items-center justify-center rounded-full bg-grayScale-100">
               <User className="h-10 w-10 text-grayScale-300" />
             </div>
             <div className="text-center">
-              <p className="text-lg font-bold tracking-tight text-grayScale-900">
+              <p className="text-lg font-semibold tracking-tight text-grayScale-600">
                 {error || "Settings not available"}
               </p>
-              <p className="mt-1 text-sm text-grayScale-500">
+              <p className="mt-1 text-sm text-grayScale-400">
                 Please check your connection and try again.
               </p>
             </div>
@@ -633,23 +489,40 @@ export function SettingsPage() {
   }
 
   return (
-    <div className="mx-auto w-full max-w-7xl px-4 py-8 sm:px-6">
-      <div className="mb-10 ">
-        <h1 className="text-2xl font-black tracking-tight text-grayScale-700">
-          Settings
-        </h1>
-        <p className="mt-2 text-sm text-grayScale-500 ">
-          Manage your account preferences, subscriptions, and system
-          configurations with ease
+    <div className="mx-auto w-full max-w-5xl space-y-6 px-4 py-8 sm:px-6">
+      {/* Page header */}
+      <div>
+        <h1 className="text-2xl font-bold tracking-tight text-grayScale-600">Settings</h1>
+        <p className="mt-1 text-sm text-grayScale-400">
+          Manage your account preferences and configuration
         </p>
       </div>
 
-      <div className="flex flex-col gap-8">
-        {/* Content Area */}
-        <main className="min-h-[400px]">
-          {activeTab === "subscription" && <SubscriptionTab />}
-        </main>
+      {/* Tab navigation */}
+      <div className="flex gap-1 rounded-xl border border-grayScale-100 bg-grayScale-100/50 p-1">
+        {tabs.map(({ id, label, icon: Icon }) => (
+          <button
+            key={id}
+            type="button"
+            onClick={() => setActiveTab(id)}
+            className={cn(
+              "flex items-center gap-2 rounded-lg px-4 py-2.5 text-sm font-medium transition-all",
+              activeTab === id
+                ? "bg-white text-brand-600 shadow-sm"
+                : "text-grayScale-400 hover:text-grayScale-600"
+            )}
+          >
+            <Icon className="h-4 w-4" />
+            <span className="hidden sm:inline">{label}</span>
+          </button>
+        ))}
       </div>
+
+      {/* Tab content */}
+      {activeTab === "profile" && <ProfileTab profile={profile} />}
+      {activeTab === "security" && <SecurityTab />}
+      {activeTab === "notifications" && <NotificationsTab />}
+      {activeTab === "appearance" && <AppearanceTab />}
     </div>
   );
 }

src/pages/auth/LoginPage.tsx

@@ -67,6 +67,9 @@ export function LoginPage() {
   const navigate = useNavigate();
 
   const token = localStorage.getItem("access_token");
+  if (token) {
+    return <Navigate to="/dashboard" replace />;
+  }
 
   const [showPassword, setShowPassword] = useState(false);
   const [email, setEmail] = useState("");
@@ -159,10 +162,6 @@ export function LoginPage() {
     }
   }, [googleReady, handleGoogleCallback]);
 
-  if (token) {
-    return <Navigate to="/dashboard" replace />;
-  }
-
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
 

src/pages/content-management/AddNewLessonPage.tsx

@@ -1,650 +0,0 @@
-import { useMemo, useState, type ChangeEvent } from "react"
-import { ArrowLeft, ArrowRight, Check, GripVertical, Plus, Rocket, Trash2, Upload } from "lucide-react"
-import { Link, useLocation, useNavigate, useParams } from "react-router-dom"
-import { toast } from "sonner"
-import { addQuestionToSet, createLesson, createQuestion } from "../../api/courses.api"
-import { uploadVideoFile } from "../../api/files.api"
-import { PracticeQuestionEditorFields } from "../../components/content-management/PracticeQuestionEditorFields"
-import { Button } from "../../components/ui/button"
-import { Card } from "../../components/ui/card"
-import { Input } from "../../components/ui/input"
-import { SpinnerIcon } from "../../components/ui/spinner-icon"
-import type { QuestionOption } from "../../types/course.types"
-
-type Step = 1 | 2 | 3 | 4
-type QuestionType = "MCQ" | "TRUE_FALSE" | "SHORT" | "AUDIO"
-type DifficultyLevel = "EASY" | "MEDIUM" | "HARD"
-type ResultStatus = "success" | "error"
-
-interface MCQOption {
-  text: string
-  isCorrect: boolean
-}
-
-interface Question {
-  id: string
-  questionText: string
-  questionType: QuestionType
-  difficultyLevel: DifficultyLevel
-  points: number
-  tips: string
-  explanation: string
-  options: MCQOption[]
-  voicePrompt: string
-  sampleAnswerVoicePrompt: string
-  audioCorrectAnswerText: string
-  shortAnswers: string[]
-  imageUrl: string
-}
-
-const STEPS = [
-  { number: 1, label: "Context" },
-  { number: 2, label: "Questions" },
-  { number: 3, label: "Review" },
-]
-
-function createEmptyQuestion(id: string): Question {
-  return {
-    id,
-    questionText: "",
-    questionType: "MCQ",
-    difficultyLevel: "EASY",
-    points: 1,
-    tips: "",
-    explanation: "",
-    options: [
-      { text: "", isCorrect: true },
-      { text: "", isCorrect: false },
-      { text: "", isCorrect: false },
-      { text: "", isCorrect: false },
-    ],
-    voicePrompt: "",
-    sampleAnswerVoicePrompt: "",
-    audioCorrectAnswerText: "",
-    shortAnswers: [],
-    imageUrl: "",
-  }
-}
-
-function introVideoUrlFromUploadResponse(data: { url?: string; embed_url?: string } | undefined): string | null {
-  if (!data) return null
-  const pageUrl = data.url?.trim()
-  const embedUrl = data.embed_url?.trim()
-  if (embedUrl) {
-    const hashFromUrl = pageUrl ? pageUrl.split("/").filter(Boolean).at(-1) : undefined
-    return hashFromUrl ? `${embedUrl}?h=${hashFromUrl}` : embedUrl
-  }
-  return pageUrl || null
-}
-
-function toVimeoEmbedUrl(rawUrl: string): string | null {
-  try {
-    const parsed = new URL(rawUrl.trim())
-    const host = parsed.hostname.toLowerCase()
-    if (!host.includes("vimeo.com")) return null
-    if (host.includes("player.vimeo.com") && parsed.pathname.includes("/video/")) return parsed.toString()
-    const segments = parsed.pathname.split("/").filter(Boolean)
-    const videoId = segments.find((segment) => /^\d+$/.test(segment))
-    if (!videoId) return null
-    const hash = parsed.searchParams.get("h")
-    return hash
-      ? `https://player.vimeo.com/video/${videoId}?h=${encodeURIComponent(hash)}`
-      : `https://player.vimeo.com/video/${videoId}`
-  } catch {
-    return null
-  }
-}
-
-function isDirectVideoFile(url: string): boolean {
-  const clean = url.split("?")[0].toLowerCase()
-  return /\.(mp4|webm|ogg|mov|m4v)$/.test(clean)
-}
-
-function questionTypeLabel(type: QuestionType): string {
-  if (type === "TRUE_FALSE") return "True/False"
-  if (type === "SHORT") return "Short Answer"
-  if (type === "AUDIO") return "Audio"
-  return "Multiple Choice"
-}
-
-export function AddNewLessonPage() {
-  const { categoryId, courseId, subModuleId } = useParams()
-  const navigate = useNavigate()
-  const location = useLocation()
-
-  const backTo = useMemo(() => {
-    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/sub-module/")) {
-      return `/content/human-language/${categoryId}/${courseId}/sub-module/${subModuleId}`
-    }
-    return `/content/category/${categoryId}/courses/${courseId}/sub-modules/${subModuleId}`
-  }, [categoryId, courseId, subModuleId, location.pathname])
-
-  const [currentStep, setCurrentStep] = useState<Step>(1)
-  const [saving, setSaving] = useState(false)
-  const [resultStatus, setResultStatus] = useState<ResultStatus | null>(null)
-  const [resultMessage, setResultMessage] = useState("")
-  const [lastSavedStatus, setLastSavedStatus] = useState<"DRAFT" | "PUBLISHED" | null>(null)
-
-  const [lessonTitle, setLessonTitle] = useState("")
-  const [lessonDescription, setLessonDescription] = useState("")
-  const [introVideoUrl, setIntroVideoUrl] = useState("")
-  const [uploadingIntroVideo, setUploadingIntroVideo] = useState(false)
-  const [questions, setQuestions] = useState<Question[]>([createEmptyQuestion("1")])
-
-  const handleNext = () => setCurrentStep((s) => (s < 3 ? ((s + 1) as Step) : s))
-  const handleBack = () => setCurrentStep((s) => (s > 1 ? ((s - 1) as Step) : s))
-
-  const handleIntroVideoFileChange = async (event: ChangeEvent<HTMLInputElement>) => {
-    const file = event.target.files?.[0]
-    event.target.value = ""
-    if (!file) return
-    setUploadingIntroVideo(true)
-    try {
-      const uploadRes = await uploadVideoFile(file, {
-        title: lessonTitle.trim() || file.name.replace(/\.[^.]+$/, "") || "Lesson intro",
-        description: lessonDescription.trim() || undefined,
-      })
-      const finalUrl = introVideoUrlFromUploadResponse(uploadRes.data?.data)
-      if (!finalUrl) throw new Error("Missing uploaded video url")
-      setIntroVideoUrl(finalUrl)
-      toast.success("Intro video uploaded")
-    } catch (error) {
-      console.error("Failed to upload lesson intro video:", error)
-      toast.error("Failed to upload intro video")
-    } finally {
-      setUploadingIntroVideo(false)
-    }
-  }
-
-  const handleIntroVideoUrlBlur = async () => {
-    const source = introVideoUrl.trim()
-    if (!source || !/^https?:\/\//i.test(source)) return
-    const vimeoEmbed = toVimeoEmbedUrl(source)
-    if (vimeoEmbed) {
-      setIntroVideoUrl(vimeoEmbed)
-      return
-    }
-    if (isDirectVideoFile(source)) {
-      setIntroVideoUrl(source)
-      return
-    }
-
-    // For non-direct URLs, automatically try server-side import via /files/upload.
-    setUploadingIntroVideo(true)
-    try {
-      const uploadRes = await uploadVideoFile(source, {
-        title: lessonTitle.trim() || "Lesson intro",
-        description: lessonDescription.trim() || undefined,
-      })
-      const finalUrl = introVideoUrlFromUploadResponse(uploadRes.data?.data)
-      if (!finalUrl) throw new Error("Missing uploaded video url")
-      setIntroVideoUrl(finalUrl)
-      toast.success("Intro video URL imported")
-    } catch (error) {
-      console.error("Failed to import intro video URL:", error)
-      toast.error("Failed to import intro video URL")
-    } finally {
-      setUploadingIntroVideo(false)
-    }
-  }
-
-  const introVideoPreview = useMemo(() => {
-    const raw = introVideoUrl.trim()
-    if (!raw) return null
-    const vimeoEmbedUrl = toVimeoEmbedUrl(raw)
-    if (vimeoEmbedUrl) return { kind: "vimeo" as const, url: vimeoEmbedUrl }
-    if (isDirectVideoFile(raw)) return { kind: "video" as const, url: raw }
-    return null
-  }, [introVideoUrl])
-
-  const reviewQuestions = useMemo(() => questions, [questions])
-
-  const addQuestion = () => setQuestions((prev) => [...prev, createEmptyQuestion(String(Date.now()))])
-  const removeQuestion = (id: string) => setQuestions((prev) => (prev.length > 1 ? prev.filter((q) => q.id !== id) : prev))
-  const updateQuestion = (id: string, updates: Partial<Question>) =>
-    setQuestions((prev) => prev.map((q) => (q.id === id ? { ...q, ...updates } : q)))
-
-  const saveLesson = async (status: "DRAFT" | "PUBLISHED") => {
-    if (!subModuleId) {
-      toast.error("Missing sub-module id")
-      return
-    }
-    setSaving(true)
-    try {
-      const lessonRes = await createLesson({
-        sub_module_id: Number(subModuleId),
-        title: lessonTitle.trim() || "Untitled Lesson",
-        description: lessonDescription.trim() || undefined,
-        intro_video_url: introVideoUrl.trim() || undefined,
-        status,
-      })
-
-      const questionSetId = lessonRes.data?.data?.id
-      if (questionSetId) {
-        for (let i = 0; i < questions.length; i++) {
-          const q = questions[i]
-          if (!q.questionText.trim()) continue
-          const options: QuestionOption[] =
-            q.questionType === "MCQ"
-              ? q.options.map((opt, idx) => ({
-                  option_order: idx + 1,
-                  option_text: opt.text,
-                  is_correct: opt.isCorrect,
-                }))
-              : []
-
-          const qRes = await createQuestion({
-            question_text: q.questionText,
-            question_type: q.questionType,
-            difficulty_level: q.difficultyLevel,
-            points: q.points,
-            tips: q.tips || undefined,
-            explanation: q.explanation || undefined,
-            status: "PUBLISHED",
-            options: options.length > 0 ? options : undefined,
-            voice_prompt: q.voicePrompt || undefined,
-            sample_answer_voice_prompt: q.sampleAnswerVoicePrompt || undefined,
-            audio_correct_answer_text: q.audioCorrectAnswerText || undefined,
-            image_url: q.imageUrl.trim() || undefined,
-            short_answers: q.shortAnswers.length > 0 ? q.shortAnswers : undefined,
-          })
-          const questionId = qRes.data?.data?.id
-          if (questionId) {
-            await addQuestionToSet(questionSetId, { question_id: questionId, display_order: i + 1 })
-          }
-        }
-      }
-
-      setResultStatus("success")
-      setResultMessage(status === "PUBLISHED" ? "Lesson published successfully." : "Lesson saved as draft.")
-      setLastSavedStatus(status)
-      setCurrentStep(4)
-    } catch (error) {
-      console.error("Failed to save lesson:", error)
-      setResultStatus("error")
-      setResultMessage(error instanceof Error ? error.message : "Failed to save lesson")
-      setLastSavedStatus(null)
-      setCurrentStep(4)
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  return (
-    <div className="mx-auto w-full max-w-7xl px-4 pb-12 sm:px-6 lg:px-8">
-      <div className="space-y-5 sm:space-y-6">
-        {currentStep !== 4 ? (
-          <>
-            <Link
-              to={backTo}
-              className="group inline-flex items-center gap-2 rounded-lg px-3 py-1.5 text-sm font-medium text-grayScale-600 transition-colors hover:bg-brand-50 hover:text-brand-600"
-            >
-              <ArrowLeft className="h-4 w-4 transition-transform group-hover:-translate-x-0.5" />
-              Back to Sub-course
-            </Link>
-            <div className="border-b border-grayScale-100 pb-6 sm:pb-8">
-              <h1 className="text-2xl font-bold tracking-tight text-grayScale-900 sm:text-3xl">Add New Lesson</h1>
-              <p className="mt-2 max-w-3xl text-sm leading-relaxed text-grayScale-500 sm:text-[15px]">
-                Create a lesson backed by `question_sets` and attach it through `sub_module_lessons`.
-              </p>
-            </div>
-            <div className="flex items-center justify-center rounded-2xl border border-grayScale-100 bg-grayScale-50/40 px-3 py-4 sm:px-6 sm:py-5">
-              {STEPS.map((step, index) => (
-                <div key={step.number} className="flex items-center">
-                  <div className="flex flex-col items-center">
-                    <div
-                      className={`flex h-9 w-9 items-center justify-center rounded-full text-xs font-semibold shadow-sm transition-all duration-300 sm:h-10 sm:w-10 sm:text-sm ${
-                        currentStep === step.number
-                          ? "bg-brand-500 text-white ring-4 ring-brand-100"
-                          : currentStep > step.number
-                            ? "bg-brand-500 text-white"
-                            : "border-2 border-grayScale-300 bg-white text-grayScale-400"
-                      }`}
-                    >
-                      {currentStep > step.number ? <Check className="h-4 w-4" /> : step.number}
-                    </div>
-                    <span className="mt-2 text-xs font-semibold text-grayScale-500">{step.label}</span>
-                  </div>
-                  {index < STEPS.length - 1 ? (
-                    <div className={`mx-4 h-0.5 w-20 ${currentStep > step.number ? "bg-brand-500" : "bg-grayScale-200"}`} />
-                  ) : null}
-                </div>
-              ))}
-            </div>
-          </>
-        ) : null}
-
-        {currentStep === 1 ? (
-          <Card className="overflow-hidden border-grayScale-200/80 shadow-sm">
-            <div className="border-b border-grayScale-100 bg-gradient-to-r from-grayScale-50/80 to-white px-5 py-5 sm:px-8 sm:py-6">
-              <h2 className="text-lg font-semibold tracking-tight text-grayScale-900 sm:text-xl">Step 1: Context</h2>
-              <p className="mt-1.5 max-w-3xl text-sm leading-relaxed text-grayScale-500">
-                Define lesson metadata that will be stored in the linked question set.
-              </p>
-            </div>
-            <div className="p-5 sm:p-8 lg:p-10">
-            <div className="mt-5 grid gap-8 lg:grid-cols-12">
-              <div className="space-y-4 lg:col-span-7">
-              <div className="space-y-2">
-                <label className="text-sm font-medium text-grayScale-700">Lesson title</label>
-                <Input
-                  value={lessonTitle}
-                  onChange={(e) => setLessonTitle(e.target.value)}
-                  placeholder="Enter lesson title"
-                  className="h-11"
-                />
-              </div>
-              <div className="space-y-2">
-                <label className="text-sm font-medium text-grayScale-700">Description</label>
-                <textarea
-                  value={lessonDescription}
-                  onChange={(e) => setLessonDescription(e.target.value)}
-                  className="min-h-[96px] w-full rounded-lg border border-grayScale-200 px-3 py-2.5 text-sm transition-colors focus:border-grayScale-400 focus:outline-none focus:ring-2 focus:ring-grayScale-100"
-                  placeholder="Enter lesson description"
-                />
-              </div>
-              <div className="space-y-2">
-                <label className="text-sm font-medium text-grayScale-700">Intro video URL (optional)</label>
-                <Input
-                  value={introVideoUrl}
-                  onChange={(e) => setIntroVideoUrl(e.target.value)}
-                  onBlur={() => void handleIntroVideoUrlBlur()}
-                  placeholder="https://..."
-                  type="url"
-                  inputMode="url"
-                  autoComplete="off"
-                  className="font-mono text-[13px]"
-                />
-                <div className="flex flex-wrap items-center gap-2">
-                  <label className="inline-flex cursor-pointer items-center gap-2 rounded-md border border-grayScale-200 px-3 py-2 text-xs text-grayScale-700 hover:bg-grayScale-50">
-                    {uploadingIntroVideo ? <SpinnerIcon className="h-4 w-4" alt="" /> : <Upload className="h-4 w-4" />}
-                    {uploadingIntroVideo ? "Uploading..." : "Upload video from computer"}
-                    <input
-                      type="file"
-                      accept="video/*"
-                      className="hidden"
-                      onChange={handleIntroVideoFileChange}
-                      disabled={uploadingIntroVideo}
-                    />
-                  </label>
-                  {introVideoUrl.trim() ? (
-                    <Button type="button" variant="ghost" size="sm" onClick={() => setIntroVideoUrl("")}>
-                      Clear URL
-                    </Button>
-                  ) : null}
-                </div>
-                {introVideoPreview ? (
-                  <div className="rounded-xl border border-grayScale-200 bg-grayScale-50/40 p-3">
-                    <p className="mb-2 text-xs font-medium text-grayScale-500">Preview</p>
-                    {introVideoPreview.kind === "vimeo" ? (
-                      <div className="overflow-hidden rounded-lg border border-grayScale-200 bg-black">
-                        <iframe
-                          src={introVideoPreview.url}
-                          title="Intro video preview"
-                          className="aspect-video w-full"
-                          allow="autoplay; fullscreen; picture-in-picture"
-                          allowFullScreen
-                        />
-                      </div>
-                    ) : (
-                      <video
-                        controls
-                        src={introVideoPreview.url}
-                        className="aspect-video w-full rounded-lg border border-grayScale-200 bg-black"
-                      />
-                    )}
-                  </div>
-                ) : null}
-              </div>
-              </div>
-              <aside className="space-y-4 lg:col-span-5">
-                <div className="rounded-xl border border-grayScale-200 bg-grayScale-50/40 p-5 shadow-sm">
-                  <h3 className="text-xs font-semibold uppercase tracking-wider text-grayScale-500">Lesson schema mapping</h3>
-                  <div className="mt-3 space-y-2 text-sm text-grayScale-700">
-                    <p>
-                      <span className="font-medium">question_sets.title</span> ← Lesson title
-                    </p>
-                    <p>
-                      <span className="font-medium">question_sets.description</span> ← Description
-                    </p>
-                    <p>
-                      <span className="font-medium">question_sets.set_type</span> = QUIZ
-                    </p>
-                    <p>
-                      <span className="font-medium">sub_module_lessons.intro_video_url</span> ← Intro URL
-                    </p>
-                  </div>
-                </div>
-              </aside>
-            </div>
-            </div>
-            <div className="flex flex-col-reverse items-stretch justify-between gap-3 border-t border-grayScale-100 bg-grayScale-50/30 px-5 py-4 sm:flex-row sm:items-center sm:px-8 sm:py-5">
-              <Button variant="ghost" onClick={() => navigate(backTo)} className="sm:w-auto">
-                Cancel
-              </Button>
-              <Button onClick={handleNext}>
-                Next: Questions
-                <ArrowRight className="ml-2 h-4 w-4" />
-              </Button>
-            </div>
-          </Card>
-        ) : null}
-
-        {currentStep === 2 ? (
-          <div className="space-y-5">
-            {questions.map((question, index) => (
-              <Card key={question.id} className="border border-grayScale-200/90 border-l-4 border-l-grayScale-700 p-5 shadow-sm">
-                <div className="mb-4 flex items-center justify-between">
-                  <div className="flex items-center gap-2">
-                    <GripVertical className="h-4 w-4 text-grayScale-400" />
-                    <span className="font-semibold">Question {index + 1}</span>
-                  </div>
-                  <button type="button" onClick={() => removeQuestion(question.id)} className="text-grayScale-400 hover:text-red-500">
-                    <Trash2 className="h-4 w-4" />
-                  </button>
-                </div>
-                <PracticeQuestionEditorFields
-                  value={{
-                    questionText: question.questionText,
-                    questionType: question.questionType,
-                    difficultyLevel: question.difficultyLevel,
-                    points: question.points,
-                    tips: question.tips,
-                    explanation: question.explanation,
-                    options: question.options,
-                    voicePrompt: question.voicePrompt,
-                    sampleAnswerVoicePrompt: question.sampleAnswerVoicePrompt,
-                    audioCorrectAnswerText: question.audioCorrectAnswerText,
-                    shortAnswer: question.shortAnswers[0] ?? "",
-                    imageUrl: question.imageUrl,
-                  }}
-                  onChange={(next) =>
-                    updateQuestion(question.id, {
-                      questionText: next.questionText,
-                      questionType: next.questionType as QuestionType,
-                      difficultyLevel: next.difficultyLevel as DifficultyLevel,
-                      points: next.points,
-                      tips: next.tips,
-                      explanation: next.explanation,
-                      options: next.options,
-                      voicePrompt: next.voicePrompt,
-                      sampleAnswerVoicePrompt: next.sampleAnswerVoicePrompt,
-                      audioCorrectAnswerText: next.audioCorrectAnswerText,
-                      shortAnswers: next.shortAnswer.trim() ? [next.shortAnswer.trim()] : [],
-                      imageUrl: next.imageUrl,
-                    })
-                  }
-                  mediaBusy={saving}
-                />
-              </Card>
-            ))}
-            <Button variant="outline" onClick={addQuestion} className="w-full border-dashed">
-              <Plus className="mr-2 h-4 w-4" />
-              Add another question
-            </Button>
-            <div className="flex items-center justify-between rounded-2xl border border-grayScale-200/80 bg-grayScale-50/30 px-4 py-4 sm:px-6 sm:py-5">
-              <Button variant="outline" onClick={handleBack}>
-                Back
-              </Button>
-              <Button onClick={handleNext}>
-                Next: Review
-                <ArrowRight className="ml-2 h-4 w-4" />
-              </Button>
-            </div>
-          </div>
-        ) : null}
-
-        {currentStep === 3 ? (
-          <Card className="overflow-hidden border-grayScale-200/80 shadow-sm">
-            <div className="border-b border-grayScale-100 bg-gradient-to-r from-grayScale-50/80 to-white px-5 py-5 sm:px-8 sm:py-6">
-              <h2 className="text-lg font-semibold tracking-tight text-grayScale-900 sm:text-xl">Step 3: Review & publish</h2>
-              <p className="mt-1.5 text-sm text-grayScale-500">Confirm lesson details and questions before saving or publishing.</p>
-            </div>
-            <div className="space-y-4 p-5 sm:p-8">
-              <div className="grid gap-4 lg:grid-cols-2">
-                <div className="overflow-hidden rounded-2xl border border-grayScale-200 bg-white">
-                  <div className="flex items-center justify-between border-b border-grayScale-100 px-4 py-3">
-                    <h3 className="text-base font-semibold text-grayScale-900">Basic Information</h3>
-                    <button
-                      type="button"
-                      className="text-sm font-medium text-brand-500 hover:text-brand-600"
-                      onClick={() => setCurrentStep(1)}
-                    >
-                      Edit
-                    </button>
-                  </div>
-                  <div className="divide-y divide-grayScale-100">
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Title</span>
-                      <span className="font-medium text-grayScale-800">{lessonTitle || "Untitled Lesson"}</span>
-                    </div>
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Description</span>
-                      <span className="max-w-[55%] truncate text-right font-medium text-grayScale-800">
-                        {lessonDescription || "—"}
-                      </span>
-                    </div>
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Intro video URL</span>
-                      <span className="max-w-[55%] truncate text-right font-medium text-grayScale-800">{introVideoUrl || "—"}</span>
-                    </div>
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Sub-module</span>
-                      <span className="font-medium text-grayScale-800">{subModuleId ?? "—"}</span>
-                    </div>
-                  </div>
-                </div>
-
-                <div className="overflow-hidden rounded-2xl border border-grayScale-200 bg-white">
-                  <div className="flex items-center justify-between border-b border-grayScale-100 px-4 py-3">
-                    <h3 className="text-base font-semibold text-grayScale-900">
-                      Questions
-                      <span className="ml-2 rounded-full bg-brand-100 px-2 py-0.5 text-xs font-semibold text-brand-700">
-                        {reviewQuestions.length}
-                      </span>
-                    </h3>
-                    <button
-                      type="button"
-                      className="text-sm font-medium text-brand-500 hover:text-brand-600"
-                      onClick={() => setCurrentStep(2)}
-                    >
-                      Edit
-                    </button>
-                  </div>
-                  <div className="space-y-3 p-3">
-                    {reviewQuestions.length === 0 ? (
-                      <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 p-4 text-sm text-grayScale-500">
-                        No question content added yet.
-                      </div>
-                    ) : (
-                      reviewQuestions.map((question, idx) => (
-                        <div key={question.id} className="rounded-xl border border-grayScale-200 bg-grayScale-50/35 p-3">
-                          <div className="mb-2 flex items-center gap-2">
-                            <span className="inline-flex h-5 min-w-5 items-center justify-center rounded-full bg-brand-100 px-1.5 text-[11px] font-semibold text-brand-700">
-                              {idx + 1}
-                            </span>
-                            <span className="rounded-md bg-indigo-50 px-2 py-0.5 text-[11px] font-semibold text-indigo-700">
-                              {questionTypeLabel(question.questionType)}
-                            </span>
-                            <span className="rounded-md bg-grayScale-100 px-2 py-0.5 text-[11px] font-semibold text-grayScale-600">
-                              {question.difficultyLevel}
-                            </span>
-                            <span className="text-[11px] font-semibold text-grayScale-500">{question.points} pt</span>
-                          </div>
-                          <p className="mb-2 line-clamp-2 text-sm font-medium text-grayScale-800">
-                            {question.questionText.trim() || `Question ${idx + 1}`}
-                          </p>
-                          {question.questionType === "MCQ" ? (
-                            <div className="space-y-1">
-                              {question.options.map((option, optionIdx) => (
-                                <div
-                                  key={`${question.id}-option-${optionIdx}`}
-                                  className={`rounded px-2 py-1 text-xs ${
-                                    option.isCorrect
-                                      ? "bg-green-50 font-medium text-green-700"
-                                      : "text-grayScale-500"
-                                  }`}
-                                >
-                                  {option.text || `Option ${optionIdx + 1}`}
-                                </div>
-                              ))}
-                            </div>
-                          ) : null}
-                        </div>
-                      ))
-                    )}
-                  </div>
-                </div>
-              </div>
-            </div>
-            <div className="flex items-center justify-between border-t border-grayScale-100 bg-grayScale-50/30 px-5 py-4 sm:px-8 sm:py-5">
-              <Button variant="outline" onClick={handleBack}>
-                Back
-              </Button>
-              <div className="flex gap-3">
-                <Button variant="outline" onClick={() => void saveLesson("DRAFT")} disabled={saving}>
-                  {saving ? "Saving..." : "Save as Draft"}
-                </Button>
-                <Button onClick={() => void saveLesson("PUBLISHED")} disabled={saving}>
-                  <Rocket className="mr-2 h-4 w-4" />
-                  {saving ? "Publishing..." : "Publish Now"}
-                </Button>
-              </div>
-            </div>
-          </Card>
-        ) : null}
-
-        {currentStep === 4 && resultStatus ? (
-          <div className="mx-auto flex max-w-xl flex-col items-center py-16 text-center">
-            <div className={`mb-5 grid h-24 w-24 place-items-center rounded-full ${resultStatus === "success" ? "bg-gradient-to-br from-brand-200 to-brand-400" : "bg-gradient-to-br from-red-200 to-red-400"}`}>
-              <Check className="h-10 w-10 text-white" />
-            </div>
-            <h2 className="text-4xl font-bold tracking-tight text-grayScale-900">
-              {resultStatus === "success" ? "Lesson Published Successfully!" : "Lesson save failed"}
-            </h2>
-            <p className="mt-3 text-sm text-grayScale-500">{resultStatus === "success" ? "Your lesson is now active." : resultMessage}</p>
-            <div className="mt-8 w-full space-y-3">
-              <Button
-                className="h-11 w-full text-base"
-                onClick={() =>
-                  navigate(lastSavedStatus === "PUBLISHED" ? "/content/human-language" : backTo)
-                }
-              >
-                Go back to Course
-              </Button>
-              {resultStatus === "success" ? (
-                <Button variant="outline" className="h-11 w-full text-base" onClick={() => navigate(0)}>
-                  Add Another Lesson
-                </Button>
-              ) : (
-                <Button variant="outline" className="h-11 w-full text-base" onClick={() => setCurrentStep(3)}>
-                  Back to Review
-                </Button>
-              )}
-            </div>
-          </div>
-        ) : null}
-      </div>
-    </div>
-  )
-}

src/pages/content-management/AddVideoFlow.tsx

@@ -1,10 +1,8 @@
 import { useState } from "react";
 import { Link, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
-import { ArrowLeft } from "lucide-react";
+import { ArrowLeft, Check } from "lucide-react";
 import { Button } from "../../components/ui/button";
 import { Stepper } from "../../components/ui/stepper";
-import { createModuleLesson } from "../../api/courses.api";
 
 import { VideoDetailStep } from "./components/video-steps/VideoDetailStep";
 import { ReviewPublishStep } from "./components/video-steps/ReviewPublishStep";
@@ -15,33 +13,6 @@ const STEPS = [
   { id: 2, label: "Review & Publish" },
 ];
 
-export type AddLessonFormData = {
-  title: string;
-  order: string;
-  description: string;
-  videoUrl: string;
-  thumbnailUrl: string;
-};
-
-const emptyForm = (): AddLessonFormData => ({
-  title: "",
-  order: "1",
-  description: "",
-  videoUrl: "",
-  thumbnailUrl: "",
-});
-
-function descriptionToApiPlain(html: string): string {
-  if (!html?.trim()) return "";
-  const t = html.trim();
-  if (!t.includes("<")) return t;
-  if (typeof document === "undefined") {
-    return t.replace(/<[^>]*>/g, " ").replace(/\s+/g, " ").trim();
-  }
-  const doc = new DOMParser().parseFromString(html, "text/html");
-  return doc.body.textContent?.replace(/\s+/g, " ").trim() ?? "";
-}
-
 export function AddVideoFlow() {
   const navigate = useNavigate();
   const { level, courseId, moduleId } = useParams<{
@@ -51,65 +22,24 @@ export function AddVideoFlow() {
   }>();
   const [currentStep, setCurrentStep] = useState(1);
   const [isPublished, setIsPublished] = useState(false);
-  const [formData, setFormData] = useState<AddLessonFormData>(emptyForm);
-  const [publishing, setPublishing] = useState(false);
-  const [formResetKey, setFormResetKey] = useState(0);
+
+  const [formData, setFormData] = useState({
+    title: "",
+    order: "1",
+    description: "",
+    thumbnail: null,
+    videoFile: null,
+  });
 
   const nextStep = () => setCurrentStep((prev) => Math.min(prev + 1, 2));
   const prevStep = () => setCurrentStep((prev) => Math.max(prev - 1, 1));
 
   const backPath = `/new-content/learn-english/${level}/courses/${courseId}/modules/${moduleId}`;
 
-  const handlePublish = async () => {
-    const mid = Number(moduleId);
-    if (!Number.isFinite(mid) || mid < 1) {
-      toast.error("Invalid module");
-      return;
-    }
-    const title = formData.title.trim();
-    const videoUrl = formData.videoUrl.trim();
-    const thumbnail = formData.thumbnailUrl.trim();
-    if (!title) {
-      toast.error("Title is required");
-      return;
-    }
-    if (!videoUrl) {
-      toast.error("Video URL is required");
-      return;
-    }
-    if (!thumbnail) {
-      toast.error("Thumbnail is required");
-      return;
-    }
-    const description = descriptionToApiPlain(formData.description);
-    if (!description) {
-      toast.error("Description is required");
-      return;
-    }
-    setPublishing(true);
-    try {
-      await createModuleLesson(mid, {
-        title,
-        video_url: videoUrl,
-        thumbnail,
-        description,
-      });
-      toast.success("Lesson created");
-      setIsPublished(true);
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create lesson";
-      toast.error(msg);
-    } finally {
-      setPublishing(false);
-    }
-  };
-
   if (isPublished) {
     return (
       <div className="flex flex-col items-center justify-center min-h-screen px-4 text-center pb-20 animate-in fade-in zoom-in duration-500 ">
+        {/* Success Icon Wrapper (Jagged Circle Style) */}
         <div className="mb-12 relative scale-110">
           <div className="absolute inset-0 bg-brand-500/5 blur-3xl rounded-full" />
           <div className="relative">
@@ -123,37 +53,35 @@ export function AddVideoFlow() {
         </div>
 
         <h1 className="text-[26px] font-bold text-grayScale-900 mb-4">
-          Lesson created successfully
+          Video Published Successfully!
         </h1>
         <p className="text-grayScale-600 text-base mb-14 max-w-lg font-medium leading-relaxed">
-          Your lesson is now available in this module.
+          Your video is now live and available inside the selected module.
         </p>
 
         <div className="flex flex-col gap-4 w-full max-w-[400px]">
           <Button
-            onClick={() => navigate(backPath)}
+            onClick={() => navigate(`/new-content/learn-english/${level}`)}
             className="h-12 rounded-[6px] bg-brand-500 font-bold text-[17px] text-white  transition-all active:scale-95"
           >
-            View module
+            Go back to Learn English
           </Button>
           <Button
             onClick={() => {
-              setFormData(emptyForm());
-              setFormResetKey((k) => k + 1);
+              setFormData({
+                title: "",
+                order: "1",
+                description: "",
+                thumbnail: null,
+                videoFile: null,
+              });
               setIsPublished(false);
               setCurrentStep(1);
             }}
             variant="outline"
             className="h-12 rounded-[6px] border-brand-200 text-brand-500 font-bold text-[17px] active:scale-95 bg-white"
           >
-            Add another lesson
-          </Button>
-          <Button
-            onClick={() => navigate(`/new-content/learn-english/${level}/courses`)}
-            variant="ghost"
-            className="h-10 text-grayScale-600 font-medium"
-          >
-            All courses
+            Add Another Video
           </Button>
         </div>
       </div>
@@ -162,6 +90,7 @@ export function AddVideoFlow() {
 
   return (
     <div className="space-y-8 pb-32 px-6 pt-6 min-h-screen ">
+      {/* Header */}
       <div className="mx-auto max-w-7xl w-full">
         <div className="flex items-center justify-between mb-8">
           <Link
@@ -169,7 +98,7 @@ export function AddVideoFlow() {
             className="flex items-center gap-2 text-[15px] font-medium text-grayScale-500 transition-colors hover:text-brand-500 decoration-none"
           >
             <ArrowLeft className="h-4 w-4" />
-            Back to module
+            Back to Modules
           </Link>
           <Button
             variant="outline"
@@ -181,7 +110,7 @@ export function AddVideoFlow() {
         </div>
 
         <h1 className="text-2xl font-bold text-[#0F172A] mb-10">
-          Add new lesson
+          Add New Video
         </h1>
 
         <div className="mx-auto max-w-4xl mb-12">
@@ -191,13 +120,13 @@ export function AddVideoFlow() {
           />
         </div>
 
+        {/* Step Content */}
         <div className="mx-auto max-w-7xl">
           {currentStep === 1 && (
             <VideoDetailStep
-              key={formResetKey}
               formData={formData}
               setFormData={setFormData}
-              onContinue={nextStep}
+              nextStep={nextStep}
             />
           )}
 
@@ -205,8 +134,7 @@ export function AddVideoFlow() {
             <ReviewPublishStep
               formData={formData}
               prevStep={prevStep}
-              onPublish={() => void handlePublish()}
-              publishing={publishing}
+              setIsPublished={setIsPublished}
             />
           )}
         </div>

src/pages/content-management/AllCoursesPage.tsx

@@ -28,7 +28,7 @@ import {
 import { Textarea } from "../../components/ui/textarea"
 import { toast } from "sonner"
 import { cn } from "../../lib/utils"
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg"
+import { SpinnerIcon } from "../../components/ui/spinner-icon"
 
 type CourseWithCategory = Course & { category_name: string }
 
@@ -230,7 +230,10 @@ export function AllCoursesPage() {
   if (loading) {
     return (
       <div className="flex flex-col items-center justify-center py-32">
-        <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
+        <div className="rounded-2xl bg-white shadow-sm p-6">
+          <SpinnerIcon className="h-10 w-10" />
+        </div>
+        <p className="mt-4 text-sm font-medium text-grayScale-400">Loading all sub-categories…</p>
       </div>
     )
   }

src/pages/content-management/ContentManagementLayout.tsx

@@ -1,26 +1,60 @@
-import { Outlet } from "react-router-dom";
-import { ContentHierarchyList } from "./components/ContentHierarchyList";
+import { NavLink, Outlet } from "react-router-dom"
+import { cn } from "../../lib/utils"
+
+const tabs = [
+  { label: "Overview", to: "/content" },
+  { label: "Courses", to: "/content/courses" },
+  { label: "Human Language", to: "/content/human-language" },
+  { label: "Flows", to: "/content/flows" },
+  { label: "Practice", to: "/content/practices" },
+  { label: "Questions", to: "/content/questions" },
+]
 
 export function ContentManagementLayout() {
   return (
     <div className="mx-auto w-full max-w-7xl px-4 py-6 sm:px-6 lg:px-8">
+      {/* Header */}
       <div className="mb-8">
-        <div className="flex items-center gap-3 mb-8">
+        <div className="flex items-center gap-3">
           <div className="h-9 w-1 rounded-full bg-gradient-to-b from-brand-500 to-brand-600" />
           <div>
             <h1 className="text-2xl font-bold tracking-tight text-grayScale-900 sm:text-[1.65rem]">
               Content Management
             </h1>
             <p className="mt-1 max-w-2xl text-sm leading-relaxed text-grayScale-500">
-              View and manage practice content for courses, modules, and lessons
+              Manage courses, speaking exercises, practices, and questions
             </p>
           </div>
         </div>
-
-        <ContentHierarchyList />
       </div>
 
+      {/* Tab bar */}
+      <div
+        className="scroll-hide mb-8 flex items-center gap-1 overflow-x-auto rounded-2xl border border-grayScale-100 bg-grayScale-50/60 p-1.5 shadow-sm backdrop-blur"
+        style={{ scrollbarWidth: "none", msOverflowStyle: "none" }}
+      >
+        <style>{`.scroll-hide::-webkit-scrollbar { display: none; }`}</style>
+        {tabs.map((t) => (
+          <NavLink
+            key={t.to}
+            to={t.to}
+            end={t.to === "/content"}
+            className={({ isActive }) =>
+              cn(
+                "relative whitespace-nowrap rounded-xl px-5 py-2 text-sm font-semibold transition-all duration-200 ease-in-out",
+                "text-grayScale-500 hover:bg-white/80 hover:text-brand-600 hover:shadow-sm",
+                isActive &&
+                  "bg-brand-500 text-white shadow-md shadow-brand-500/25 hover:bg-brand-600 hover:text-white",
+              )
+            }
+          >
+            {t.label}
+          </NavLink>
+        ))}
+      </div>
+
+      {/* Page content */}
       <Outlet />
     </div>
-  );
+  )
 }

src/pages/content-management/CourseCategoryPage.tsx

@@ -1,6 +1,6 @@
 import { useEffect, useState } from "react"
 import { Link } from "react-router-dom"
-import { FolderOpen, RefreshCw, BookOpen, Plus, Trash2 } from "lucide-react"
+import { FolderOpen, RefreshCw, BookOpen, Plus } from "lucide-react"
 import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg"
 import alertSrc from "../../assets/Alert.svg"
 import { Card, CardContent, CardHeader, CardTitle } from "../../components/ui/card"
@@ -11,11 +11,10 @@ import {
   Dialog,
   DialogContent,
   DialogDescription,
-  DialogFooter,
   DialogHeader,
   DialogTitle,
 } from "../../components/ui/dialog"
-import { getCourseCategories, createCourseCategory, deleteCourseCategory } from "../../api/courses.api"
+import { getCourseCategories, createCourseCategory } from "../../api/courses.api"
 import type { CourseCategory } from "../../types/course.types"
 import { toast } from "sonner"
 
@@ -30,8 +29,6 @@ export function CourseCategoryPage() {
   const [newSubCategoryName, setNewSubCategoryName] = useState("")
   const [pendingSubCategories, setPendingSubCategories] = useState<string[]>([])
   const [searchQuery, setSearchQuery] = useState("")
-  const [deleteTarget, setDeleteTarget] = useState<CourseCategory | null>(null)
-  const [deleting, setDeleting] = useState(false)
 
   const fetchCategories = async () => {
     setLoading(true)
@@ -167,26 +164,12 @@ export function CourseCategoryPage() {
                 </CardHeader>
 
                 <CardContent>
-                  <div className="flex items-center justify-between gap-2">
-                    <span className="inline-flex items-center gap-1.5 text-sm font-medium text-brand-500 transition-colors group-hover:text-brand-600">
-                      View Sub-categories
-                      <span className="inline-block transition-transform duration-300 group-hover:translate-x-1">
-                        →
-                      </span>
+                  <span className="inline-flex items-center gap-1.5 text-sm font-medium text-brand-500 transition-colors group-hover:text-brand-600">
+                    View Sub-categories
+                    <span className="inline-block transition-transform duration-300 group-hover:translate-x-1">
+                      →
                     </span>
-                    <button
-                      type="button"
-                      className="inline-flex h-8 w-8 items-center justify-center rounded-md border border-red-200 bg-white text-red-500 hover:bg-red-50"
-                      onClick={(e) => {
-                        e.preventDefault()
-                        e.stopPropagation()
-                        setDeleteTarget(category)
-                      }}
-                      aria-label={`Delete category ${category.name}`}
-                    >
-                      <Trash2 className="h-4 w-4" />
-                    </button>
-                  </div>
+                  </span>
                 </CardContent>
               </Card>
             </Link>
@@ -352,7 +335,7 @@ export function CourseCategoryPage() {
                   if (createdCategoryId && pendingSubCategories.length > 0) {
                     await Promise.all(
                       pendingSubCategories.map((subName) =>
-                        createCourseCategory({ name: subName, parent_id: createdCategoryId }),
+                        createCourseCategory({ name: subName }),
                       ),
                     )
                   }
@@ -388,46 +371,6 @@ export function CourseCategoryPage() {
           </div>
         </DialogContent>
       </Dialog>
-
-      <Dialog open={deleteTarget !== null} onOpenChange={(open) => !open && setDeleteTarget(null)}>
-        <DialogContent className="max-w-md">
-          <DialogHeader>
-            <DialogTitle>Delete category?</DialogTitle>
-            <DialogDescription>
-              {deleteTarget
-                ? `This will permanently delete "${deleteTarget.name}" and all linked sub-categories/courses.`
-                : ""}
-            </DialogDescription>
-          </DialogHeader>
-          <DialogFooter>
-            <Button type="button" variant="outline" onClick={() => setDeleteTarget(null)} disabled={deleting}>
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              className="bg-red-600 text-white hover:bg-red-700"
-              disabled={deleting}
-              onClick={async () => {
-                if (!deleteTarget) return
-                setDeleting(true)
-                try {
-                  await deleteCourseCategory(deleteTarget.id)
-                  toast.success("Category deleted")
-                  setDeleteTarget(null)
-                  await fetchCategories()
-                } catch (err: any) {
-                  const message = err?.response?.data?.message || "Failed to delete category."
-                  toast.error("Could not delete category", { description: message })
-                } finally {
-                  setDeleting(false)
-                }
-              }}
-            >
-              {deleting ? "Deleting..." : "Delete"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
     </div>
   )
 }

src/pages/content-management/CourseDetailPage.tsx

@@ -1,633 +1,166 @@
-import { useCallback, useEffect, useState } from "react";
-import {
-  ArrowLeft,
-  Plus,
-  Calendar,
-  Layers,
-  Pencil,
-  Trash2,
-  X,
-} from "lucide-react";
+import { useState } from "react";
+import { ArrowLeft, Plus, Calendar, Plane, Clock, Hand } from "lucide-react";
 import { Link, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
 import { Button } from "../../components/ui/button";
 import { Card } from "../../components/ui/card";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
 import { cn } from "../../lib/utils";
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg";
-import alertSrc from "../../assets/Alert.svg";
-import {
-  deleteTopLevelCourseModule,
-  getProgramCourses,
-  getTopLevelCourseModules,
-  updateTopLevelCourseModule,
-} from "../../api/courses.api";
-import { refreshFileUrl, resolveFileUrl } from "../../api/files.api";
-import type {
-  ProgramCourseListItem,
-  TopLevelCourseModuleItem,
-} from "../../types/course.types";
+
+const MODULES = [
+  {
+    id: "m1",
+    title: "Introduction Basics",
+    description: "Learn basic English words, phrases, and simple sentences.",
+    icon: Hand,
+    status: "Published",
+    gradient: "from-[#8E44AD] to-[#C39BD3]",
+  },
+  {
+    id: "m2",
+    title: "Daily Routines",
+    description: "Vocabulary related to waking up, and evening activities.",
+    icon: Clock,
+    status: "Draft",
+    gradient: "from-[#8E44AD] to-[#C39BD3]",
+  },
+  {
+    id: "m3",
+    title: "Travel Essentials",
+    description:
+      "Key phrases for airports, hotels, and asking for help while abroad.",
+    icon: Plane,
+    status: "Draft",
+    gradient: "from-[#8E44AD] to-[#C39BD3]",
+  },
+];
+
 import { AddModuleModal } from "./components/AddModuleModal";
-import { ModuleIconUploadField } from "./components/ModuleIconUploadField";
-
-const MODULE_CARD_GRADIENT = "from-[#8E44AD] to-[#C39BD3]" as const;
-
-function isLikelyImageUrl(src: string): boolean {
-  const t = src.trim();
-  return (
-    t.startsWith("http://") ||
-    t.startsWith("https://") ||
-    t.startsWith("/") ||
-    t.startsWith("data:")
-  );
-}
-
-function isSignedMinioUrl(src: string): boolean {
-  const value = src.trim();
-  if (!value.startsWith("http://") && !value.startsWith("https://"))
-    return false;
-  try {
-    const url = new URL(value);
-    return url.searchParams.has("X-Amz-Signature");
-  } catch {
-    return false;
-  }
-}
-
-/** Default purple gradient with optional cover image; gradient stays if URL missing or image errors. */
-function ModuleCardTopMedia({ iconSrc }: { iconSrc: string }) {
-  const [coverFailed, setCoverFailed] = useState(false);
-  const tryCover =
-    Boolean(iconSrc.trim()) && isLikelyImageUrl(iconSrc) && !coverFailed;
-
-  return (
-    <div className="relative h-36 w-full overflow-hidden">
-      <div
-        className={cn(
-          "absolute inset-0 bg-gradient-to-b opacity-90 transition-transform duration-700",
-          MODULE_CARD_GRADIENT,
-        )}
-      />
-      {tryCover ? (
-        <img
-          src={iconSrc.trim()}
-          alt=""
-          className="absolute inset-0 h-full w-full object-cover"
-          onError={() => setCoverFailed(true)}
-        />
-      ) : null}
-    </div>
-  );
-}
-
-/** Circular module icon: image when load succeeds, otherwise default Layers icon. */
-function ModuleIconCircle({
-  iconSrc,
-  index,
-}: {
-  iconSrc: string;
-  index: number;
-}) {
-  const [imgFailed, setImgFailed] = useState(false);
-  const showImg =
-    Boolean(iconSrc.trim()) && isLikelyImageUrl(iconSrc) && !imgFailed;
-
-  return (
-    <div
-      className={cn(
-        "flex h-12 w-12 flex-shrink-0 items-center justify-center overflow-hidden rounded-full border border-purple-100/50 p-2",
-        index % 2 === 1 ? "bg-[#F8FAFC]" : "bg-[#f3e8ff]",
-      )}
-    >
-      {showImg ? (
-        <img
-          src={iconSrc.trim()}
-          alt=""
-          className="h-full w-full object-contain"
-          onError={() => setImgFailed(true)}
-        />
-      ) : (
-        <Layers
-          className={cn(
-            "h-6 w-6",
-            index % 2 === 1 ? "text-[#64748B]" : "text-brand-500",
-          )}
-        />
-      )}
-    </div>
-  );
-}
 
 export function CourseDetailPage() {
   const navigate = useNavigate();
-  const { level: programIdParam, courseId: courseIdParam } = useParams<{
-    level: string;
-    courseId: string;
-  }>();
-  const programId = Number(programIdParam);
-  const courseIdNum = Number(courseIdParam);
-
-  const [course, setCourse] = useState<ProgramCourseListItem | null>(null);
-  const [modules, setModules] = useState<TopLevelCourseModuleItem[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
+  const { level, courseId } = useParams<{ level: string; courseId: string }>();
   const [isAddModuleOpen, setIsAddModuleOpen] = useState(false);
 
-  const [editingModule, setEditingModule] =
-    useState<TopLevelCourseModuleItem | null>(null);
-  const [editModuleName, setEditModuleName] = useState("");
-  const [editModuleDescription, setEditModuleDescription] = useState("");
-  const [editModuleIcon, setEditModuleIcon] = useState("");
-  const [editModuleIconUploadBusy, setEditModuleIconUploadBusy] =
-    useState(false);
-  const [savingModuleEdit, setSavingModuleEdit] = useState(false);
-
-  const [deletingModule, setDeletingModule] =
-    useState<TopLevelCourseModuleItem | null>(null);
-  const [deletingModuleInFlight, setDeletingModuleInFlight] = useState(false);
-
-  const openEditModule = (module: TopLevelCourseModuleItem) => {
-    setEditingModule(module);
-    setEditModuleName(module.name ?? "");
-    setEditModuleDescription(module.description ?? "");
-    setEditModuleIcon(module.icon?.trim() ?? "");
-    setEditModuleIconUploadBusy(false);
-  };
-
-  const closeEditModule = () => {
-    if (savingModuleEdit || editModuleIconUploadBusy) return;
-    setEditingModule(null);
-    setEditModuleIconUploadBusy(false);
-  };
-
-  const loadPage = useCallback(async () => {
-    if (!Number.isFinite(programId) || programId < 1) {
-      setError("Invalid program");
-      setCourse(null);
-      setModules([]);
-      setLoading(false);
-      return;
-    }
-    if (!Number.isFinite(courseIdNum) || courseIdNum < 1) {
-      setError("Invalid course");
-      setCourse(null);
-      setModules([]);
-      setLoading(false);
-      return;
-    }
-    setLoading(true);
-    setError(null);
-    try {
-      const [courseOutcome, modulesOutcome] = await Promise.allSettled([
-        getProgramCourses(programId, { limit: 200, offset: 0 }),
-        getTopLevelCourseModules(courseIdNum, { limit: 100, offset: 0 }),
-      ]);
-
-      if (courseOutcome.status === "fulfilled") {
-        const raw = courseOutcome.value.data?.data?.courses;
-        const list = Array.isArray(raw) ? raw : [];
-        const found = list.find((c) => c.id === courseIdNum) ?? null;
-        setCourse(found);
-        if (!found) {
-          setError("Course not found in this program");
-        }
-      } else {
-        console.error(courseOutcome.reason);
-        setCourse(null);
-        setError("Failed to load course");
-      }
-
-      if (modulesOutcome.status === "fulfilled") {
-        const raw = modulesOutcome.value.data?.data?.modules;
-        const list = Array.isArray(raw) ? raw : [];
-        const refreshed = await Promise.all(
-          list.map(async (module) => {
-            const icon = module.icon?.trim() ?? "";
-            if (!icon) return module;
-            try {
-              if (isSignedMinioUrl(icon)) {
-                const refreshedRes = await refreshFileUrl(icon);
-                const refreshedUrl = refreshedRes.data?.data?.url?.trim();
-                if (refreshedUrl) {
-                  return { ...module, icon: refreshedUrl };
-                }
-                return module;
-              }
-              if (isLikelyImageUrl(icon)) return module;
-              const resolved = await resolveFileUrl(icon);
-              const freshUrl = resolved.data?.data?.url?.trim();
-              if (!freshUrl) return module;
-              return { ...module, icon: freshUrl };
-            } catch {
-              return module;
-            }
-          }),
-        );
-        const sorted = [...refreshed].sort(
-          (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-        );
-        setModules(sorted);
-      } else {
-        console.error(modulesOutcome.reason);
-        setModules([]);
-        toast.error("Could not load modules", {
-          description: "Check your connection or try again.",
-        });
-      }
-    } catch (e) {
-      console.error(e);
-      setError("Failed to load course");
-      setCourse(null);
-      setModules([]);
-      toast.error("Could not load course", {
-        description: "Check your connection or try again.",
-      });
-    } finally {
-      setLoading(false);
-    }
-  }, [programId, courseIdNum]);
-
-  useEffect(() => {
-    void loadPage();
-  }, [loadPage]);
-
-  const handleSaveModuleEdit = async () => {
-    if (!editingModule) return;
-    const name = editModuleName.trim();
-    if (!name) {
-      toast.error("Module name is required");
-      return;
-    }
-    setSavingModuleEdit(true);
-    try {
-      await updateTopLevelCourseModule(editingModule.id, {
-        name,
-        description: editModuleDescription.trim(),
-        icon: editModuleIcon.trim(),
-      });
-      toast.success("Module updated");
-      setEditModuleIconUploadBusy(false);
-      setEditingModule(null);
-      await loadPage();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update module";
-      toast.error(msg);
-    } finally {
-      setSavingModuleEdit(false);
-    }
-  };
-
-  const handleConfirmDeleteModule = async () => {
-    if (!deletingModule) return;
-    setDeletingModuleInFlight(true);
-    try {
-      await deleteTopLevelCourseModule(deletingModule.id);
-      toast.success("Module deleted");
-      setDeletingModule(null);
-      await loadPage();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete module";
-      toast.error(msg);
-    } finally {
-      setDeletingModuleInFlight(false);
-    }
-  };
-
-  const displayTitle = course?.name?.trim() || courseIdParam || "Course";
-  const displayDescription =
-    course?.description?.trim() ||
-    (!loading && !course
-      ? "This course could not be loaded."
-      : !course?.description?.trim() && course
-        ? "—"
-        : "");
-
   return (
     <div className="space-y-10 pb-20 pt-10">
       {/* Header Navigation */}
       <div className="flex items-center gap-2">
         <Link
-          to={`/new-content/learn-english/${programIdParam}/courses`}
+          to={`/new-content/learn-english/${level}/courses`}
           className="flex items-center gap-2 text-sm font-medium text-grayScale-600 transition-colors hover:text-brand-500"
         >
           <ArrowLeft className="h-5 w-5" />
-          Back to Courses
+          Back to Levels
         </Link>
       </div>
 
-      {loading ? (
-        <div className="flex flex-col items-center justify-center py-16">
-          <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
+      {/* Hero Section */}
+      <div className="flex flex-col md:flex-row md:items-end justify-between gap-6">
+        <div className="">
+          <h1 className="text-2xl font-medium text-grayScale-900 tracking-tight">
+            {courseId?.toUpperCase() || "A1"}
+          </h1>
+          <p className="text-grayScale-500 text-sm max-w-2xl font-medium">
+            Learn basic English words, phrases, and simple sentences for daily
+            situations.
+          </p>
         </div>
-      ) : error && !course ? (
-        <div className="flex flex-col items-center justify-center rounded-xl border border-red-100 bg-red-50/60 px-6 py-14 text-center">
-          <img src={alertSrc} alt="" className="h-10 w-10" />
-          <p className="mt-3 text-sm font-medium text-red-700">{error}</p>
+        <div className="flex items-center gap-4">
           <Button
-            type="button"
             variant="outline"
-            className="mt-4"
-            onClick={() => void loadPage()}
+            className="rounded-[6px] border-brand-500 text-brand-500 "
+            onClick={() =>
+              navigate(
+                `/new-content/learn-english/${level}/courses/add-practice?backTo=modules&courseId=${courseId}`,
+              )
+            }
           >
-            Try again
+            <Calendar className="h-4 w-4" />
+            Add Practice
+          </Button>
+          <Button
+            className="rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600"
+            onClick={() => setIsAddModuleOpen(true)}
+          >
+            <Plus className="h-4 w-4" />
+            Add Module
           </Button>
         </div>
-      ) : (
-        <>
-          <div className="flex flex-col justify-between gap-6 md:flex-row md:items-end">
-            <div className="min-w-0 flex-1">
-              <h1 className="text-2xl font-medium tracking-tight text-grayScale-900">
-                {displayTitle}
-              </h1>
-              <p className="mt-1 max-w-2xl text-sm font-medium text-grayScale-500">
-                {displayDescription}
-              </p>
-            </div>
-            <div className="flex items-center gap-4">
-              <Button
-                variant="outline"
-                className="rounded-[6px] border-brand-500 text-brand-500 "
-                onClick={() =>
-                  navigate(
-                    `/new-content/learn-english/${programIdParam}/courses/add-practice?backTo=modules&courseId=${courseIdParam}`,
-                  )
-                }
-              >
-                <Calendar className="h-4 w-4" />
-                Add Practice
-              </Button>
-              <Button
-                className="rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600"
-                onClick={() => setIsAddModuleOpen(true)}
-              >
-                <Plus className="h-4 w-4" />
-                Add Module
-              </Button>
-            </div>
-          </div>
-          <div className="relative">
-            <div
-              className="absolute inset-0 flex items-center"
-              aria-hidden="true"
-            >
-              <div className="w-full border-t border-grayScale-200" />
-            </div>
-            <div className="relative flex justify-center">
-              <div
-                className="h-[0.5px] w-full rounded-full opacity-20"
-                style={{
-                  background: "gray",
-                }}
-              />
-            </div>
-          </div>
+      </div>
+    
 
-          <AddModuleModal
-            isOpen={isAddModuleOpen}
-            onClose={() => setIsAddModuleOpen(false)}
-            courseId={courseIdNum}
-            onCreated={() => loadPage()}
-          />
+      <AddModuleModal
+        isOpen={isAddModuleOpen}
+        onClose={() => setIsAddModuleOpen(false)}
+      />
+      {/* Gradient Divider */}
 
-          <Dialog
-            open={editingModule !== null}
-            onOpenChange={(open) => {
-              if (!open && savingModuleEdit) return;
-              if (!open && editModuleIconUploadBusy) return;
-              if (!open) closeEditModule();
-            }}
+      {/* Gradient Grid */}
+      <div className="flex flex-warp gap-10">
+        {MODULES.map((module) => (
+          <Card
+            key={module.id}
+            className="group overflow-hidden border w-[330px] border-grayScale-50 shadow-sm hover:shadow-lg transition-all duration-300 rounded-[16px] bg-white flex flex-col h-full"
           >
-            <DialogContent className="max-w-lg">
-              <DialogHeader>
-                <DialogTitle>Edit module</DialogTitle>
-                <DialogDescription>
-                  Update name, description, and icon (upload or URL). Saved with{" "}
-                  <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                    PUT /modules/:id
-                  </code>
-                  .
-                </DialogDescription>
-              </DialogHeader>
-              <div className="grid gap-4 py-2">
-                <div className="space-y-2">
-                  <label className="text-sm font-medium text-grayScale-700">
-                    Name
-                  </label>
-                  <Input
-                    value={editModuleName}
-                    onChange={(e) => setEditModuleName(e.target.value)}
-                    className="rounded-xl"
-                    placeholder="e.g. Grammar basics"
-                    disabled={savingModuleEdit}
-                  />
-                </div>
-                <div className="space-y-2">
-                  <label className="text-sm font-medium text-grayScale-700">
-                    Description
-                  </label>
-                  <Textarea
-                    value={editModuleDescription}
-                    onChange={(e) => setEditModuleDescription(e.target.value)}
-                    rows={4}
-                    className="min-h-[100px] resize-y rounded-xl"
-                    placeholder="Optional short description."
-                    disabled={savingModuleEdit}
-                  />
-                </div>
-                <ModuleIconUploadField
-                  value={editModuleIcon}
-                  onChange={setEditModuleIcon}
-                  disabled={savingModuleEdit}
-                  onUploadBusyChange={setEditModuleIconUploadBusy}
-                />
-              </div>
-              <DialogFooter className="gap-2 sm:gap-0">
-                <Button
-                  type="button"
-                  variant="outline"
-                  onClick={closeEditModule}
-                  disabled={savingModuleEdit || editModuleIconUploadBusy}
-                >
-                  Cancel
-                </Button>
-                <Button
-                  type="button"
-                  className="bg-brand-500 hover:bg-brand-600"
-                  disabled={savingModuleEdit || editModuleIconUploadBusy}
-                  onClick={() => void handleSaveModuleEdit()}
-                >
-                  {savingModuleEdit ? "Saving…" : "Save changes"}
-                </Button>
-              </DialogFooter>
-            </DialogContent>
-          </Dialog>
-
-          {modules.length === 0 ? (
-            <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-              <p className="text-sm font-medium text-grayScale-600">
-                No modules in this course yet
-              </p>
-              <p className="mt-1 text-sm text-grayScale-400">
-                Add modules when your workflow is connected, or create them via
-                the API.
-              </p>
-            </div>
-          ) : (
+            {/* Gradient Banner */}
             <div
-              className="grid justify-start gap-10"
-              style={{
-                gridTemplateColumns: "repeat(auto-fill, minmax(330px, 330px))",
-              }}
-            >
-              {modules.map((module, index) => {
-                const iconSrc = module.icon?.trim() ?? "";
-                return (
-                  <Card
-                    key={module.id}
-                    className="group relative flex h-full min-h-0 w-full flex-col overflow-hidden rounded-[16px] border border-grayScale-50 bg-white shadow-sm transition-all duration-300 hover:shadow-lg"
-                  >
-                    <div className="absolute right-2 top-2 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto">
-                      <Button
-                        type="button"
-                        variant="secondary"
-                        size="icon"
-                        className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                        aria-label={`Edit ${module.name}`}
-                        onClick={() => openEditModule(module)}
-                      >
-                        <Pencil className="h-3.5 w-3.5" />
-                      </Button>
-                      <Button
-                        type="button"
-                        variant="secondary"
-                        size="icon"
-                        className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                        aria-label={`Delete ${module.name}`}
-                        onClick={() => setDeletingModule(module)}
-                      >
-                        <Trash2 className="h-3.5 w-3.5" />
-                      </Button>
-                    </div>
-                    <ModuleCardTopMedia iconSrc={iconSrc} />
+              className={cn(
+                "h-36 w-full bg-gradient-to-b opacity-90 transition-transform duration-700",
+                module.gradient,
+              )}
+            />
 
-                    <div className="flex min-h-0 flex-1 flex-col gap-6 p-2 pb-4 pt-4">
-                      <div className="flex min-h-0 flex-1 gap-4">
-                        <ModuleIconCircle iconSrc={iconSrc} index={index} />
-
-                        <div className="min-w-0 flex-1 space-y-1">
-                          <h3 className="text-lg font-bold tracking-tight text-[#0F172A]">
-                            {module.name}
-                          </h3>
-                          <p className="text-[12px] font-medium leading-snug text-grayScale-400 line-clamp-3">
-                            {module.description?.trim()
-                              ? module.description
-                              : "—"}
-                          </p>
-                        </div>
-                      </div>
-
-                      <div className="mt-auto flex shrink-0 items-center gap-3">
-                        <Button
-                          variant="outline"
-                          className="h-10 flex-1 rounded-[6px] border-[#9E2891] text-sm text-[#9E2891] transition-all"
-                          onClick={() =>
-                            navigate(
-                              `/new-content/learn-english/${programIdParam}/courses/${courseIdParam}/modules/${module.id}`,
-                              {
-                                state: {
-                                  moduleName: module.name,
-                                  moduleDescription:
-                                    module.description?.trim() ?? "",
-                                },
-                              },
-                            )
-                          }
-                        >
-                          View Detail
-                        </Button>
-                        <Button className="h-10 flex-1 rounded-[6px] bg-brand-500 text-sm text-white shadow-md shadow-brand-500/10">
-                          Publish Practice
-                        </Button>
-                      </div>
-                    </div>
-                  </Card>
-                );
-              })}
-            </div>
-          )}
-
-          {deletingModule && (
-            <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-              <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-                <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-                  <h2 className="text-lg font-bold text-grayScale-700">
-                    Delete module
-                  </h2>
-                  <button
-                    type="button"
-                    onClick={() =>
-                      !deletingModuleInFlight && setDeletingModule(null)
-                    }
-                    disabled={deletingModuleInFlight}
-                    className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-                  >
-                    <X className="h-5 w-5" />
-                  </button>
+            <div className="p-2 pb-4 pt-4 flex-1 flex flex-col">
+              <div className="flex gap-4 mb-8">
+                {/* Icon Circle */}
+                <div
+                  className={`h-12 w-12 rounded-full ${module.id === "m2" ? "bg-[#F8FAFC]" : "bg-[#f3e8ff]"} flex items-center justify-center p-3 flex-shrink-0 border border-purple-100/50`}
+                >
+                  <module.icon
+                    className={`h-6 w-6 ${module.id === "m2" ? "text-[#64748B]" : "text-brand-500"}`}
+                  />
                 </div>
 
-                <div className="px-6 py-6">
-                  <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                    <Trash2 className="h-5 w-5 text-red-500" />
-                  </div>
-                  <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                    Are you sure you want to delete{" "}
-                    <span className="font-semibold text-grayScale-700">
-                      {deletingModule.name}
-                    </span>
-                    ? This cannot be undone. Related content may be affected
-                    depending on your backend.
+                {/* Content */}
+                <div className="space-y-1">
+                  <h3 className="text-lg font-bold text-[#0F172A] tracking-tight">
+                    {module.title}
+                  </h3>
+                  <p className="text-grayScale-400 font-medium  text-[12px]">
+                    {module.description}
                   </p>
                 </div>
+              </div>
 
-                <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
+              {/* Actions */}
+              <div className="flex items-center gap-3 mt-auto">
+                <Button
+                  variant="outline"
+                  className="flex-1 h-10 rounded-[6px] border-[#9E2891] text-[#9E2891]  transition-all text-sm"
+                  onClick={() =>
+                    navigate(
+                      `/new-content/learn-english/${level}/courses/${courseId}/modules/${module.id}`,
+                    )
+                  }
+                >
+                  View Detail
+                </Button>
+                {module.status === "Published" ? (
                   <Button
-                    type="button"
-                    variant="outline"
-                    onClick={() => setDeletingModule(null)}
-                    disabled={deletingModuleInFlight}
-                    className="w-full sm:w-auto"
+                    disabled
+                    className="flex-1 h-10 rounded-[6px] bg-[#D291BC] text-white  opacity-100 cursor-default border-none shadow-none text-sm"
                   >
-                    Cancel
+                    Published
                   </Button>
-                  <Button
-                    type="button"
-                    className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                    disabled={deletingModuleInFlight}
-                    onClick={() => void handleConfirmDeleteModule()}
-                  >
-                    {deletingModuleInFlight ? "Deleting…" : "Delete"}
+                ) : (
+                  <Button className="flex-1 h-10 rounded-[6px] bg-brand-500 text-white  shadow-md shadow-brand-500/10 text-sm">
+                    Publish Practice
                   </Button>
-                </div>
+                )}
               </div>
             </div>
-          )}
-        </>
-      )}
+          </Card>
+        ))}
+      </div>
     </div>
   );
 }

src/pages/content-management/CourseFlowBuilderPage.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useMemo, useState } from "react"
 import {
+  BadgeCheck,
   ChevronDown,
   ChevronRight,
   GripVertical,
@@ -31,9 +32,9 @@ import { Badge } from "../../components/ui/badge"
 import {
   getCourseCategories,
   getCoursesByCategory,
-  getSubModulesByCourse,
-  getVideosBySubModule,
+  getLearningPath,
   getQuestionSetsByOwner,
+  getSubModuleEntryAssessment,
   reorderCategories,
   reorderCourses,
   reorderSubModules,
@@ -193,7 +194,9 @@ export function CourseFlowBuilderPage() {
   const [practicesBySubCourse, setPracticesBySubCourse] = useState<Record<number, PracticeListItem[]>>(
     {},
   )
-  const [videosBySubCourse, setVideosBySubCourse] = useState<Record<number, LearningPathVideo[]>>({})
+  const [entryAssessmentBySubCourse, setEntryAssessmentBySubCourse] = useState<Record<number, QuestionSet | null>>(
+    {},
+  )
 
   const [loading, setLoading] = useState(true)
   const [loadingCourses, setLoadingCourses] = useState(false)
@@ -257,9 +260,7 @@ export function CourseFlowBuilderPage() {
       setLoadingCourses(true)
       try {
         const res = await getCoursesByCategory(selectedCategoryId)
-        const items = sortByDisplayOrder(
-          (res.data.data.courses ?? []).filter((course) => Number(course.category_id) === Number(selectedCategoryId)),
-        )
+        const items = sortByDisplayOrder(res.data.data.courses ?? [])
         setCoursesByCategory((prev) => ({ ...prev, [selectedCategoryId]: items }))
         setSelectedCourseId(items[0]?.id ?? null)
       } catch {
@@ -279,94 +280,47 @@ export function CourseFlowBuilderPage() {
     const load = async () => {
       setLoadingPath(true)
       try {
-        const selectedCourse = activeCourses.find((course) => course.id === selectedCourseId)
-        const subRes = await getSubModulesByCourse(selectedCourseId)
-        const subCourses = sortByDisplayOrder((subRes.data.data.sub_courses ?? []) as any[]).map((sc) => ({
-          id: sc.id,
-          title: sc.title,
-          description: sc.description ?? "",
-          thumbnail: sc.thumbnail ?? "",
-          display_order: sc.display_order ?? 0,
-          level: sc.level ?? sc.cefr_level ?? "",
-          sub_level: sc.sub_level ?? "",
-          prerequisite_count: 0,
-          video_count: 0,
-          practice_count: 0,
-          prerequisites: [],
-          videos: [],
-          practices: [],
-        }))
-
+        const res = await getLearningPath(selectedCourseId)
+        const path = res.data.data
         setLearningPath({
-          course_id: selectedCourseId,
-          course_title: selectedCourse?.title ?? "",
-          description: selectedCourse?.description ?? "",
-          thumbnail: selectedCourse?.thumbnail ?? "",
-          intro_video_url: "",
-          category_id: selectedCategoryId ?? 0,
-          category_name: topLevelCategories.find((cat) => cat.id === selectedCategoryId)?.name ?? "",
-          sub_courses: subCourses,
+          ...path,
+          sub_courses: sortByDisplayOrder(path.sub_courses ?? []),
         })
 
-        if (subCourses.length === 0) {
-          setPracticesBySubCourse({})
-          setVideosBySubCourse({})
-          return
-        }
-
-        const [ownerResults, videoResults] = await Promise.all([
-          Promise.all(
+        // Practices source of truth: question sets by SUB_COURSE owner.
+        const subCourses = path.sub_courses ?? []
+        if (subCourses.length > 0) {
+          const ownerResults = await Promise.all(
             subCourses.map(async (sc) => {
-              const setsRes = await getQuestionSetsByOwner("SUB_MODULE", sc.id)
+              const setsRes = await getQuestionSetsByOwner("SUB_COURSE", sc.id)
               return [sc.id, mapPracticeSetsToPracticeItems((setsRes.data.data ?? []) as QuestionSet[])] as const
             }),
-          ),
-          Promise.all(
-            subCourses.map(async (sc) => {
-              const videosRes = await getVideosBySubModule(sc.id)
-              const rows = videosRes.data?.data?.videos ?? []
-              const mapped = sortByDisplayOrder(
-                rows.map((video: any, idx: number) => ({
-                  id: Number(video.id),
-                  title: String(video.title ?? "Video"),
-                  display_order: Number(video.display_order ?? idx),
-                  duration: Number(video.duration ?? 0),
-                  video_url: String(video.video_url ?? ""),
-                })),
-              )
-              return [sc.id, mapped] as const
-            }),
-          ),
-        ])
-
-        const practiceMap: Record<number, PracticeListItem[]> = {}
-        ownerResults.forEach(([subCourseId, practiceItems]) => {
-          practiceMap[subCourseId] = practiceItems
-        })
-        setPracticesBySubCourse(practiceMap)
-
-        const videoMap: Record<number, LearningPathVideo[]> = {}
-        videoResults.forEach(([subCourseId, videos]) => {
-          videoMap[subCourseId] = videos
-        })
-        setVideosBySubCourse(videoMap)
+          )
+          const practiceMap: Record<number, PracticeListItem[]> = {}
+          ownerResults.forEach(([subCourseId, practiceItems]) => {
+            practiceMap[subCourseId] = practiceItems
+          })
+          setPracticesBySubCourse(practiceMap)
+        } else {
+          setPracticesBySubCourse({})
+        }
       } catch {
-        toast.error("Failed to load course flow detail.")
+        toast.error("Failed to load course sub-category learning path.")
         setLearningPath(null)
       } finally {
         setLoadingPath(false)
       }
     }
     load()
-  }, [selectedCourseId, activeCourses, selectedCategoryId, topLevelCategories])
+  }, [selectedCourseId])
 
   const loadSubCoursePracticeAndEntry = async (subCourseId: number) => {
-    if (practicesBySubCourse[subCourseId] && videosBySubCourse[subCourseId]) return
+    if (practicesBySubCourse[subCourseId] && entryAssessmentBySubCourse[subCourseId] !== undefined) return
     setLoadingPracticesBySubCourse((prev) => ({ ...prev, [subCourseId]: true }))
     try {
-      const [setsRes, videosRes] = await Promise.allSettled([
-        getQuestionSetsByOwner("SUB_MODULE", subCourseId),
-        getVideosBySubModule(subCourseId),
+      const [setsRes, entryRes] = await Promise.allSettled([
+        getQuestionSetsByOwner("SUB_COURSE", subCourseId),
+        getSubModuleEntryAssessment(subCourseId),
       ])
 
       // No practice sets is a valid empty-state scenario; do not toast for 404/empty.
@@ -385,21 +339,20 @@ export function CourseFlowBuilderPage() {
         [subCourseId]: mapPracticeSetsToPracticeItems(ownerSets),
       }))
 
-      const videos =
-        videosRes.status === "fulfilled"
-          ? sortByDisplayOrder(
-              (videosRes.value.data?.data?.videos ?? []).map((video: any, idx: number) => ({
-                id: Number(video.id),
-                title: String(video.title ?? "Video"),
-                display_order: Number(video.display_order ?? idx),
-                duration: Number(video.duration ?? 0),
-                video_url: String(video.video_url ?? ""),
-              })),
-            )
-          : []
-      setVideosBySubCourse((prev) => ({
+      // Entry assessment may legitimately be absent.
+      let entryAssessment: QuestionSet | null = null
+      if (entryRes.status === "fulfilled") {
+        entryAssessment = (entryRes.value.data.data ?? null) as QuestionSet | null
+      } else {
+        const status = entryRes.reason?.response?.status
+        if (status !== 404) {
+          throw entryRes.reason
+        }
+      }
+
+      setEntryAssessmentBySubCourse((prev) => ({
         ...prev,
-        [subCourseId]: videos,
+        [subCourseId]: entryAssessment,
       }))
     } catch {
       toast.error("Failed to load practice sets for course.")
@@ -741,7 +694,6 @@ export function CourseFlowBuilderPage() {
                     {learningPath.sub_courses.map((subCourse) => {
                       const expanded = expandedSubCourseIds.has(subCourse.id)
                       const practices = practicesBySubCourse[subCourse.id] ?? []
-                      const videos = videosBySubCourse[subCourse.id] ?? subCourse.videos ?? []
                       return (
                         <SortableRow key={subCourse.id} id={subCourse.id}>
                           <button
@@ -771,12 +723,17 @@ export function CourseFlowBuilderPage() {
                                     {subCourse.sub_level}
                                   </Badge>
                                 )}
-                                {/* entry-assessment route is no longer guaranteed across deployments */}
+                                {entryAssessmentBySubCourse[subCourse.id] && (
+                                  <span className="inline-flex items-center gap-1 text-emerald-600">
+                                    <BadgeCheck className="h-3.5 w-3.5" />
+                                    Entry assessment
+                                  </span>
+                                )}
                               </p>
                             </div>
                             <div className="flex w-full items-center justify-between gap-2 sm:w-auto sm:justify-end">
                               <Badge variant="secondary" className="text-[10px]">
-                                {videos.length} videos / {practices.length} practices
+                                {subCourse.videos.length} videos / {practices.length || subCourse.practice_count} practices
                               </Badge>
                               {expanded ? (
                                 <ChevronDown className="h-4 w-4 text-grayScale-400" />
@@ -798,16 +755,16 @@ export function CourseFlowBuilderPage() {
                                   onDragEnd={(event) => onVideosDragEnd(subCourse.id, event)}
                                 >
                                   <SortableContext
-                                    items={videos.map((item) => item.id)}
+                                    items={subCourse.videos.map((item) => item.id)}
                                     strategy={verticalListSortingStrategy}
                                   >
                                     <div className="space-y-1.5">
-                                      {videos.length === 0 ? (
+                                      {subCourse.videos.length === 0 ? (
                                         <p className="rounded-lg border border-dashed border-grayScale-200 px-2 py-2 text-[11px] text-grayScale-400">
                                           No videos
                                         </p>
                                       ) : (
-                                        videos.map((video) => (
+                                        subCourse.videos.map((video) => (
                                           <SortableChip
                                             key={video.id}
                                             id={video.id}
@@ -885,7 +842,7 @@ export function CourseFlowBuilderPage() {
           </p>
           <p>
             Practices load from <code>/question-sets/by-owner</code> filtered by
-            <code> set_type=PRACTICE</code> and <code>owner_type=SUB_MODULE</code>.
+            <code> set_type=PRACTICE</code>; entry assessment loads from dedicated course endpoint.
           </p>
         </CardContent>
       </Card>

src/pages/content-management/CourseManagementPage.tsx

@@ -1,4 +1,3 @@
-import { useCallback, useEffect, useRef, useState } from "react";
 import { Link, useParams, useNavigate } from "react-router-dom";
 import {
   ArrowLeft,
@@ -7,15 +6,12 @@ import {
   LayoutGrid,
   PlayCircle,
   ClipboardCheck,
-  Pencil,
-  Trash2,
   ChevronRight,
   ArrowRight,
   X,
 } from "lucide-react";
 import { Button } from "../../components/ui/button";
 import { Card } from "../../components/ui/card";
-import { Textarea } from "../../components/ui/textarea";
 import {
   Dialog,
   DialogContent,
@@ -26,15 +22,6 @@ import {
 } from "../../components/ui/dialog";
 import { Input } from "../../components/ui/input";
 import uploadIcon from "../../assets/icons/upload.png";
-import { toast } from "sonner";
-import { ResolvedImage } from "../../components/media/ResolvedImage";
-import {
-  createExamPrepCatalogUnit,
-  updateExamPrepCatalogUnit,
-  deleteExamPrepCatalogUnit,
-  getExamPrepCatalogUnits,
-} from "../../api/courses.api";
-import { uploadImageFile } from "../../api/files.api";
 
 export function CourseManagementPage() {
   const navigate = useNavigate();
@@ -42,38 +29,6 @@ export function CourseManagementPage() {
     programType: string;
     courseId: string;
   }>();
-  const catalogCourseId = Number(courseId);
-  const [addUnitOpen, setAddUnitOpen] = useState(false);
-  const [createName, setCreateName] = useState("");
-  const [createDescription, setCreateDescription] = useState("");
-  const [createThumbnail, setCreateThumbnail] = useState("");
-  const [creating, setCreating] = useState(false);
-  const [uploadingThumbnail, setUploadingThumbnail] = useState(false);
-  const createThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-  const [units, setUnits] = useState<
-    Array<{
-      id: number;
-      name: string;
-      description: string;
-      thumbnail: string;
-      sortOrder: number;
-      modules: number;
-      lessons: number;
-      practices: number;
-      gradient: string;
-    }>
-  >([]);
-  const [unitsLoading, setUnitsLoading] = useState(false);
-  const [editingUnitId, setEditingUnitId] = useState<number | null>(null);
-  const [editName, setEditName] = useState("");
-  const [editDescription, setEditDescription] = useState("");
-  const [editThumbnail, setEditThumbnail] = useState("");
-  const [editSortOrder, setEditSortOrder] = useState("1");
-  const [savingEdit, setSavingEdit] = useState(false);
-  const [uploadingEditThumbnail, setUploadingEditThumbnail] = useState(false);
-  const editThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-  const [deletingUnitId, setDeletingUnitId] = useState<number | null>(null);
-  const [deletingUnit, setDeletingUnit] = useState(false);
 
   // Mock data for display titles
   const courseTitles: Record<string, string> = {
@@ -84,289 +39,41 @@ export function CourseManagementPage() {
   const courseDisplayName =
     courseTitles[courseId || ""] || "Duolingo English Test";
 
-  const loadUnits = useCallback(async () => {
-    if (!Number.isFinite(catalogCourseId) || catalogCourseId < 1) {
-      setUnits([]);
-      return;
-    }
-    setUnitsLoading(true);
-    try {
-      const response = await getExamPrepCatalogUnits(catalogCourseId, {
-        limit: 20,
-        offset: 0,
-      });
-      const rows = response.data?.data?.units;
-      const list = Array.isArray(rows) ? rows : [];
-      setUnits(
-        list.map((row, index) => ({
-          id: Number(row.id),
-          name: row.name?.trim() || `Unit ${row.id}`,
-          description: row.description?.trim() || "—",
-          thumbnail: row.thumbnail?.trim() || "",
-          sortOrder: Number(row.sort_order ?? 0),
-          modules: Number(row.modules_count ?? 0),
-          lessons: Number(row.lessons_count ?? row.videos_count ?? 0),
-          practices: Number(row.practices_count ?? 0),
-          gradient:
-            index % 3 === 1
-              ? "linear-gradient(135deg, rgba(79, 70, 229, 0.5) 0%, rgba(79, 70, 229, 0.8) 100%)"
-              : index % 3 === 2
-                ? "linear-gradient(135deg, rgba(124, 58, 237, 0.5) 0%, rgba(124, 58, 237, 0.8) 100%)"
-                : "linear-gradient(135deg, rgba(158, 40, 145, 0.5) 0%, rgba(158, 40, 145, 0.8) 100%)",
-        })),
-      );
-    } catch (error) {
-      console.error(error);
-      toast.error("Failed to load units");
-      setUnits([]);
-    } finally {
-      setUnitsLoading(false);
-    }
-  }, [catalogCourseId]);
-
-  useEffect(() => {
-    void loadUnits();
-  }, [loadUnits]);
-
-  const isHttpUrl = (value: string) =>
-    value.startsWith("http://") || value.startsWith("https://");
-
-  const isMinioUrl = (value: string) => {
-    try {
-      const url = new URL(value);
-      return url.host === "s3.yimaruacademy.com";
-    } catch {
-      return false;
-    }
-  };
-
-  const resolveThumbnailToMinioUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed) return "";
-    if (!isHttpUrl(trimmed) || isMinioUrl(trimmed)) return trimmed;
-    const uploaded = await uploadImageFile(trimmed);
-    const uploadedUrl = uploaded.data?.data?.url?.trim();
-    if (!uploadedUrl) throw new Error("Failed to upload thumbnail URL to MinIO");
-    return uploadedUrl;
-  };
-
-  const clearCreateUnitForm = () => {
-    setCreateName("");
-    setCreateDescription("");
-    setCreateThumbnail("");
-    if (createThumbnailFileInputRef.current) {
-      createThumbnailFileInputRef.current.value = "";
-    }
-  };
-
-  const handleCreateUnitThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setUploadingThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) throw new Error("Upload did not return a file URL");
-      setCreateThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(message);
-    } finally {
-      setUploadingThumbnail(false);
-    }
-  };
-
-  const handleCreateUnit = async () => {
-    if (!Number.isFinite(catalogCourseId) || catalogCourseId < 1) {
-      toast.error("Invalid catalog course");
-      return;
-    }
-    const name = createName.trim();
-    if (!name) {
-      toast.error("Unit name is required");
-      return;
-    }
-    setCreating(true);
-    try {
-      const minioThumbnail = await resolveThumbnailToMinioUrl(createThumbnail);
-      const response = await createExamPrepCatalogUnit(catalogCourseId, {
-        name,
-        description: createDescription.trim() || null,
-        thumbnail: minioThumbnail || null,
-      });
-      void response;
-      await loadUnits();
-      toast.success("Unit created");
-      clearCreateUnitForm();
-      setAddUnitOpen(false);
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create unit";
-      toast.error(message);
-    } finally {
-      setCreating(false);
-    }
-  };
-
-  const autoUploadCreateThumbnailUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed || !isHttpUrl(trimmed) || isMinioUrl(trimmed)) return;
-    setUploadingThumbnail(true);
-    try {
-      const minioUrl = await resolveThumbnailToMinioUrl(trimmed);
-      if (minioUrl && minioUrl !== trimmed) {
-        setCreateThumbnail(minioUrl);
-        toast.success("Thumbnail uploaded to MinIO");
-      }
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload URL to MinIO";
-      toast.error(message);
-    } finally {
-      setUploadingThumbnail(false);
-    }
-  };
-
-  const autoUploadEditThumbnailUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed || !isHttpUrl(trimmed) || isMinioUrl(trimmed)) return;
-    setUploadingEditThumbnail(true);
-    try {
-      const minioUrl = await resolveThumbnailToMinioUrl(trimmed);
-      if (minioUrl && minioUrl !== trimmed) {
-        setEditThumbnail(minioUrl);
-        toast.success("Thumbnail uploaded to MinIO");
-      }
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload URL to MinIO";
-      toast.error(message);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const openEditUnit = (unit: (typeof units)[number]) => {
-    setEditingUnitId(unit.id);
-    setEditName(unit.name ?? "");
-    setEditDescription(unit.description ?? "");
-    setEditThumbnail(unit.thumbnail ?? "");
-    setEditSortOrder(String(unit.sortOrder ?? 1));
-  };
-
-  const closeEditUnit = () => {
-    if (savingEdit || uploadingEditThumbnail) return;
-    setEditingUnitId(null);
-    setEditName("");
-    setEditDescription("");
-    setEditThumbnail("");
-    setEditSortOrder("1");
-  };
-
-  const handleEditUnitThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    setUploadingEditThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) throw new Error("Upload did not return a file URL");
-      setEditThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(message);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const handleSaveEditUnit = async () => {
-    if (!editingUnitId) return;
-    const name = editName.trim();
-    if (!name) {
-      toast.error("Unit name is required");
-      return;
-    }
-    const sortOrderNum = Number(editSortOrder);
-    if (!Number.isFinite(sortOrderNum) || sortOrderNum < 0) {
-      toast.error("Sort order must be a valid number");
-      return;
-    }
-
-    setSavingEdit(true);
-    try {
-      const minioThumbnail = await resolveThumbnailToMinioUrl(editThumbnail);
-      await updateExamPrepCatalogUnit(editingUnitId, {
-        name,
-        description: editDescription.trim() || null,
-        thumbnail: minioThumbnail || null,
-        sort_order: sortOrderNum,
-      });
-      await loadUnits();
-      toast.success("Unit updated");
-      closeEditUnit();
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update unit";
-      toast.error(message);
-    } finally {
-      setSavingEdit(false);
-    }
-  };
-
-  const handleDeleteUnit = async () => {
-    if (!deletingUnitId) return;
-    setDeletingUnit(true);
-    try {
-      await deleteExamPrepCatalogUnit(deletingUnitId);
-      await loadUnits();
-      toast.success("Unit deleted");
-      setDeletingUnitId(null);
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete unit";
-      toast.error(message);
-    } finally {
-      setDeletingUnit(false);
-    }
-  };
+  const units = [
+    {
+      id: "unit1",
+      name: "Greetings & Introductions",
+      description:
+        "Learn basic greetings, self-introductions, and polite expressions in everyday situations.",
+      modules: 3,
+      videos: 9,
+      practices: 9,
+      gradient:
+        "linear-gradient(135deg, rgba(158, 40, 145, 0.5) 0%, rgba(158, 40, 145, 0.8) 100%)",
+    },
+    {
+      id: "unit2",
+      name: "Speaking",
+      description:
+        "Core speaking practice and skill building for natural pronunciation and fluency.",
+      modules: 3,
+      videos: 9,
+      practices: 9,
+      gradient:
+        "linear-gradient(135deg, rgba(79, 70, 229, 0.5) 0%, rgba(79, 70, 229, 0.8) 100%)",
+    },
+    {
+      id: "unit3",
+      name: "Reading",
+      description:
+        "Reading comprehension and vocabulary improvement through various text types.",
+      modules: 3,
+      videos: 9,
+      practices: 9,
+      gradient:
+        "linear-gradient(135deg, rgba(124, 58, 237, 0.5) 0%, rgba(124, 58, 237, 0.8) 100%)",
+    },
+  ];
 
   return (
     <div className="space-y-8 animate-in fade-in duration-500 pb-10">
@@ -391,51 +98,29 @@ export function CourseManagementPage() {
         </div>
 
         <div className="flex items-center gap-3 pt-2">
-          <Dialog
-            open={addUnitOpen}
-            onOpenChange={(open) => {
-              if (!open && (creating || uploadingThumbnail)) return;
-              setAddUnitOpen(open);
-            }}
-          >
+          <Dialog>
             <DialogTrigger asChild>
               <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-sm hover:bg-brand-600 transition-all flex items-center gap-2">
                 <Plus className="h-5 w-5" />
                 Add Unit
               </Button>
             </DialogTrigger>
-            <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-[600px] flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0">
-              <div className="flex min-h-0 flex-1 flex-col bg-white">
-                <DialogHeader className="shrink-0 px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
+            <DialogContent className="max-w-[600px] p-0 border-none rounded-[16px] overflow-hidden">
+              <div className="bg-white">
+                <DialogHeader className="px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
                   <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                    Create Unit
+                    Create Courses
                   </DialogTitle>
                 </DialogHeader>
 
-                <div className="min-h-0 flex-1 overflow-y-auto p-8 space-y-8">
+                <div className="p-8 space-y-8">
                   <div className="space-y-3">
                     <label className="text-[15px] text-grayScale-800">
                       Unit Name
                     </label>
                     <Input
-                      value={createName}
-                      onChange={(e) => setCreateName(e.target.value)}
                       placeholder="e.g. Reading"
                       className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                      disabled={creating || uploadingThumbnail}
-                    />
-                  </div>
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Description
-                    </label>
-                    <Textarea
-                      value={createDescription}
-                      onChange={(e) => setCreateDescription(e.target.value)}
-                      placeholder="Short unit description"
-                      rows={4}
-                      className="min-h-[96px] rounded-[8px] border-grayScale-400"
-                      disabled={creating || uploadingThumbnail}
                     />
                   </div>
 
@@ -443,20 +128,7 @@ export function CourseManagementPage() {
                     <label className="text-[15px] text-grayScale-800">
                       Thumbnail
                     </label>
-                    <input
-                      ref={createThumbnailFileInputRef}
-                      type="file"
-                      accept="image/*"
-                      className="sr-only"
-                      onChange={(e) => void handleCreateUnitThumbnailFile(e)}
-                      disabled={creating || uploadingThumbnail}
-                    />
-                    <button
-                      type="button"
-                      className="relative group w-full cursor-pointer"
-                      onClick={() => createThumbnailFileInputRef.current?.click()}
-                      disabled={creating || uploadingThumbnail}
-                    >
+                    <div className="relative group cursor-pointer">
                       <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all ">
                         <div className="mb-4">
                           <img
@@ -467,62 +139,31 @@ export function CourseManagementPage() {
                         </div>
                         <p className="text-[15px]">
                           <span className="text-brand-500 font-bold hover:underline">
-                            {uploadingThumbnail ? "Uploading…" : "Click to upload"}
+                            Click to upload
                           </span>{" "}
                           <span className="text-grayScale-500">
-                            or paste a URL below
+                            or drag and drop
                           </span>
                         </p>
                         <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                          JPG, PNG (MAX 5 MB)
+                          JPG, PNG (MAX 1 MB)
                         </p>
                       </div>
-                    </button>
-                    {createThumbnail.trim() ? (
-                      <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                        <ResolvedImage
-                          src={createThumbnail.trim()}
-                          alt=""
-                          className="h-28 w-full object-cover"
-                        />
-                      </div>
-                    ) : null}
-                    <Input
-                      value={createThumbnail}
-                      onChange={(e) => setCreateThumbnail(e.target.value)}
-                      onPaste={(event) => {
-                        const pasted = event.clipboardData?.getData("text")?.trim();
-                        if (!pasted) return;
-                        setTimeout(() => {
-                          void autoUploadCreateThumbnailUrl(pasted);
-                        }, 0);
-                      }}
-                      placeholder="Optional thumbnail URL (or leave empty for null)"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                      disabled={creating || uploadingThumbnail}
-                    />
+                    </div>
                   </div>
                 </div>
 
-                <div className="shrink-0 px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
+                <div className="px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
                   <DialogClose asChild>
                     <Button
-                      type="button"
                       variant="outline"
                       className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                      disabled={creating || uploadingThumbnail}
-                      onClick={clearCreateUnitForm}
                     >
                       Cancel
                     </Button>
                   </DialogClose>
-                  <Button
-                    type="button"
-                    className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600"
-                    disabled={creating || uploadingThumbnail}
-                    onClick={() => void handleCreateUnit()}
-                  >
-                    {creating ? "Creating..." : "Create Unit"}
+                  <Button className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600">
+                    Create Courses
                   </Button>
                 </div>
               </div>
@@ -559,61 +200,16 @@ export function CourseManagementPage() {
 
       {/* Grid of Units */}
       <div className="flex flex-wrap gap-4 pt-4">
-        {unitsLoading ? (
-          <p className="text-sm text-grayScale-500">Loading units...</p>
-        ) : units.length === 0 ? (
-          <div className="w-full rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-            <p className="text-sm font-medium text-grayScale-600">
-              No units for this course yet
-            </p>
-            <p className="mt-1 text-sm text-grayScale-400">
-              Create your first unit to start organizing modules, lessons, and practices.
-            </p>
-          </div>
-        ) : (
-          units.map((unit) => (
+        {units.map((unit) => (
           <Card
             key={unit.id}
-            className="group relative flex w-[400px] flex-col h-full bg-white rounded-[12px] border border-grayScale-100 overflow-hidden shadow-sm hover:shadow-md transition-all"
+            className="group flex w-[400px] flex-col h-full bg-white rounded-[12px] border border-grayScale-100 overflow-hidden shadow-sm hover:shadow-md transition-all"
           >
-            <div className="absolute right-2 top-2 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto">
-              <Button
-                type="button"
-                variant="secondary"
-                size="icon"
-                className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                onClick={() => openEditUnit(unit)}
-                aria-label={`Edit ${unit.name}`}
-              >
-                <Pencil className="h-3.5 w-3.5" />
-              </Button>
-              <Button
-                type="button"
-                variant="secondary"
-                size="icon"
-                className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                onClick={() => setDeletingUnitId(unit.id)}
-                aria-label={`Delete ${unit.name}`}
-              >
-                <Trash2 className="h-3.5 w-3.5" />
-              </Button>
-            </div>
             {/* Gradient Header */}
             <div
-              className="relative h-36 w-full overflow-hidden transition-transform duration-500"
+              className="h-36 w-full transition-transform duration-500 "
               style={{ background: unit.gradient }}
-            >
-              {unit.thumbnail ? (
-                <ResolvedImage
-                  src={unit.thumbnail}
-                  alt={`${unit.name} thumbnail`}
-                  className="h-full w-full object-cover"
-                  onError={(event) => {
-                    event.currentTarget.style.display = "none";
-                  }}
-                />
-              ) : null}
-            </div>
+            />
 
             <div className="p-4 flex flex-col flex-1 space-y-6">
               <div className="space-y-3 flex-1">
@@ -636,7 +232,7 @@ export function CourseManagementPage() {
                 <div className="h-9 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
                   <PlayCircle className="h-3.5 w-3.5 text-grayScale-400" />
                   <span className="text-[12px] font-bold">
-                    {unit.lessons} Lessons
+                    {unit.videos} Videos
                   </span>
                 </div>
                 <div className="h-9 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
@@ -661,169 +257,8 @@ export function CourseManagementPage() {
               </Button>
             </div>
           </Card>
-          ))
-        )}
+        ))}
       </div>
-
-      <Dialog
-        open={editingUnitId !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingEdit || uploadingEditThumbnail)) return;
-          if (!open) closeEditUnit();
-        }}
-      >
-        <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-[600px] flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0">
-          <div className="flex min-h-0 flex-1 flex-col bg-white">
-            <DialogHeader className="shrink-0 px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
-              <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                Edit Unit
-              </DialogTitle>
-            </DialogHeader>
-            <div className="min-h-0 flex-1 overflow-y-auto p-8 space-y-8">
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Unit Name</label>
-                <Input
-                  value={editName}
-                  onChange={(e) => setEditName(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Description</label>
-                <Textarea
-                  value={editDescription}
-                  onChange={(e) => setEditDescription(e.target.value)}
-                  rows={4}
-                  className="min-h-[96px] rounded-[8px] border-grayScale-400"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Sort Order</label>
-                <Input
-                  type="number"
-                  min={0}
-                  value={editSortOrder}
-                  onChange={(e) => setEditSortOrder(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Thumbnail</label>
-                <input
-                  ref={editThumbnailFileInputRef}
-                  type="file"
-                  accept="image/*"
-                  className="sr-only"
-                  onChange={(e) => void handleEditUnitThumbnailFile(e)}
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-                <button
-                  type="button"
-                  className="relative group w-full cursor-pointer"
-                  onClick={() => editThumbnailFileInputRef.current?.click()}
-                  disabled={savingEdit || uploadingEditThumbnail}
-                >
-                  <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all ">
-                    <div className="mb-4">
-                      <img src={uploadIcon} alt="Upload icon" className="h-10 w-10" />
-                    </div>
-                    <p className="text-[15px]">
-                      <span className="text-brand-500 font-bold hover:underline">
-                        {uploadingEditThumbnail ? "Uploading…" : "Click to upload"}
-                      </span>{" "}
-                      <span className="text-grayScale-500">or paste a URL below</span>
-                    </p>
-                    <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                      JPG, PNG (MAX 5 MB)
-                    </p>
-                  </div>
-                </button>
-                {editThumbnail.trim() ? (
-                  <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                    <ResolvedImage
-                      src={editThumbnail.trim()}
-                      alt=""
-                      className="h-28 w-full object-cover"
-                    />
-                  </div>
-                ) : null}
-                <Input
-                  value={editThumbnail}
-                  onChange={(e) => setEditThumbnail(e.target.value)}
-                  onPaste={(event) => {
-                    const pasted = event.clipboardData?.getData("text")?.trim();
-                    if (!pasted) return;
-                    setTimeout(() => {
-                      void autoUploadEditThumbnailUrl(pasted);
-                    }, 0);
-                  }}
-                  placeholder="Optional thumbnail URL (or leave empty for null)"
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-            </div>
-            <div className="shrink-0 px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
-              <Button
-                type="button"
-                variant="outline"
-                className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                disabled={savingEdit || uploadingEditThumbnail}
-                onClick={closeEditUnit}
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600"
-                disabled={savingEdit || uploadingEditThumbnail}
-                onClick={() => void handleSaveEditUnit()}
-              >
-                {savingEdit ? "Saving..." : "Save Changes"}
-              </Button>
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
-
-      <Dialog
-        open={deletingUnitId !== null}
-        onOpenChange={(open) => {
-          if (!open && !deletingUnit) setDeletingUnitId(null);
-        }}
-      >
-        <DialogContent className="max-w-md rounded-[16px] border-none p-0 overflow-hidden">
-          <div className="bg-white">
-            <DialogHeader className="border-b border-grayScale-100 px-6 py-5">
-              <DialogTitle className="text-lg font-bold text-grayScale-900">
-                Delete Unit
-              </DialogTitle>
-            </DialogHeader>
-            <div className="px-6 py-6 text-sm text-grayScale-600">
-              Are you sure you want to delete this unit? This action cannot be undone.
-            </div>
-            <div className="flex justify-end gap-3 border-t border-grayScale-100 px-6 py-4">
-              <Button
-                variant="outline"
-                onClick={() => setDeletingUnitId(null)}
-                disabled={deletingUnit}
-              >
-                Cancel
-              </Button>
-              <Button
-                className="bg-red-500 hover:bg-red-600"
-                onClick={() => void handleDeleteUnit()}
-                disabled={deletingUnit}
-              >
-                {deletingUnit ? "Deleting..." : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
     </div>
   );
 }

src/pages/content-management/CourseModuleDetailPage.tsx

@@ -1,30 +1,40 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { ArrowLeft, Plus, FileText, Pencil, Trash2 } from "lucide-react";
+import { useState } from "react";
+import { ArrowLeft, Plus, FileText, MoreVertical, Edit2 } from "lucide-react";
 import { Link, useNavigate, useParams } from "react-router-dom";
 import { Button } from "../../components/ui/button";
 import { cn } from "../../lib/utils";
 import { Card } from "../../components/ui/card";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogTrigger,
-  DialogClose,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
-import uploadIcon from "../../assets/icons/upload.png";
-import { toast } from "sonner";
-import { ResolvedImage } from "../../components/media/ResolvedImage";
-import { VideoCard } from "./components/VideoCard";
-import {
-  createExamPrepModuleLesson,
-  updateExamPrepModuleLesson,
-  deleteExamPrepModuleLesson,
-  getExamPrepModuleLessons,
-} from "../../api/courses.api";
-import { uploadImageFile, uploadVideoFile } from "../../api/files.api";
+
+const MOCK_VIDEOS = [
+  {
+    id: "v1",
+    title: "1.1 Introduction to Formal Greetings",
+    duration: "08:45",
+    status: "Draft",
+    thumbnailColor: "bg-[#CBD5E1]",
+  },
+  {
+    id: "v2",
+    title: "1.2 Understanding Email Structure",
+    duration: "08:45",
+    status: "Published",
+    thumbnailColor: "bg-[#DBEAFE]",
+  },
+  {
+    id: "v3",
+    title: "1.3 Common Business Idioms",
+    duration: "08:45",
+    status: "Published",
+    thumbnailColor: "bg-[#FEF3C7]",
+  },
+  {
+    id: "v4",
+    title: "1.4 Video Conference Etiquette",
+    duration: "08:45",
+    status: "Published",
+    thumbnailColor: "bg-[#FCE7F3]",
+  },
+];
 
 const MOCK_PRACTICES = [
   {
@@ -51,402 +61,19 @@ export function CourseModuleDetailPage() {
     unitId: string;
     moduleId: string;
   }>();
-  const parsedModuleId = Number(moduleId);
 
   const [activeTab, setActiveTab] = useState<"video" | "practice">("video");
-  const [lessonsLoading, setLessonsLoading] = useState(false);
-  const [lessons, setLessons] = useState<
-    Array<{
-      id: number;
-      title: string;
-      videoUrl: string;
-      description: string;
-      thumbnail: string;
-      sortOrder: number;
-      gradient: string;
-    }>
-  >([]);
-  const [createLessonOpen, setCreateLessonOpen] = useState(false);
-  const [createTitle, setCreateTitle] = useState("");
-  const [createVideoUrl, setCreateVideoUrl] = useState("");
-  const [createThumbnail, setCreateThumbnail] = useState("");
-  const [createDescription, setCreateDescription] = useState("");
-  const [creatingLesson, setCreatingLesson] = useState(false);
-  const [uploadingThumbnail, setUploadingThumbnail] = useState(false);
-  const [uploadingVideo, setUploadingVideo] = useState(false);
-  const createThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-  const createVideoFileInputRef = useRef<HTMLInputElement>(null);
-  const [editingLessonId, setEditingLessonId] = useState<number | null>(null);
-  const [editTitle, setEditTitle] = useState("");
-  const [editVideoUrl, setEditVideoUrl] = useState("");
-  const [editThumbnail, setEditThumbnail] = useState("");
-  const [editDescription, setEditDescription] = useState("");
-  const [editSortOrder, setEditSortOrder] = useState("1");
-  const [savingEdit, setSavingEdit] = useState(false);
-  const [uploadingEditThumbnail, setUploadingEditThumbnail] = useState(false);
-  const [uploadingEditVideo, setUploadingEditVideo] = useState(false);
-  const editThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-  const editVideoFileInputRef = useRef<HTMLInputElement>(null);
-  const [deletingLessonId, setDeletingLessonId] = useState<number | null>(null);
-  const [deletingLesson, setDeletingLesson] = useState(false);
+  const [activeFilter, setActiveFilter] = useState("All");
 
   const moduleTitle = "Module 1: Basic Phrases";
   const moduleDescription = "Learn essential phrases for daily conversations.";
 
-  const isHttpUrl = (value: string) =>
-    value.startsWith("http://") || value.startsWith("https://");
-
-  const isMinioUrl = (value: string) => {
-    try {
-      const url = new URL(value);
-      return url.host === "s3.yimaruacademy.com";
-    } catch {
-      return false;
-    }
-  };
-
-  const resolveThumbnailToMinioUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed) return "";
-    if (!isHttpUrl(trimmed) || isMinioUrl(trimmed)) return trimmed;
-    const uploaded = await uploadImageFile(trimmed);
-    const uploadedUrl = uploaded.data?.data?.url?.trim();
-    if (!uploadedUrl) throw new Error("Failed to upload thumbnail URL to MinIO");
-    return uploadedUrl;
-  };
-
-  const loadLessons = useCallback(async () => {
-    if (!Number.isFinite(parsedModuleId) || parsedModuleId < 1) {
-      setLessons([]);
-      return;
-    }
-    setLessonsLoading(true);
-    try {
-      const response = await getExamPrepModuleLessons(parsedModuleId, {
-        limit: 20,
-        offset: 0,
-      });
-      const rows = response.data?.data?.lessons;
-      const list = Array.isArray(rows) ? rows : [];
-      setLessons(
-        list.map((row, index) => ({
-          id: Number(row.id),
-          title: row.title?.trim() || `Lesson ${row.id}`,
-          videoUrl: row.video_url?.trim() || "",
-          description: row.description?.trim() || "—",
-          thumbnail: row.thumbnail?.trim() || "",
-          sortOrder: Number(row.sort_order ?? 0),
-          gradient:
-            index % 3 === 1
-              ? "linear-gradient(135deg, rgba(79, 70, 229, 0.35) 0%, rgba(79, 70, 229, 0.6) 100%)"
-              : index % 3 === 2
-                ? "linear-gradient(135deg, rgba(124, 58, 237, 0.35) 0%, rgba(124, 58, 237, 0.6) 100%)"
-                : "linear-gradient(135deg, rgba(158, 40, 145, 0.35) 0%, rgba(158, 40, 145, 0.6) 100%)",
-        })),
-      );
-    } catch (error) {
-      console.error(error);
-      toast.error("Failed to load lessons");
-      setLessons([]);
-    } finally {
-      setLessonsLoading(false);
-    }
-  }, [parsedModuleId]);
-
-  useEffect(() => {
-    if (activeTab !== "video") return;
-    void loadLessons();
-  }, [activeTab, loadLessons]);
-
-  const clearCreateLessonForm = () => {
-    setCreateTitle("");
-    setCreateVideoUrl("");
-    setCreateThumbnail("");
-    setCreateDescription("");
-    if (createThumbnailFileInputRef.current) {
-      createThumbnailFileInputRef.current.value = "";
-    }
-    if (createVideoFileInputRef.current) {
-      createVideoFileInputRef.current.value = "";
-    }
-  };
-
-  const handleCreateLessonVideoFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("video/")) {
-      toast.error("Please choose a video file");
-      return;
-    }
-    setUploadingVideo(true);
-    try {
-      const res = await uploadVideoFile(file, {
-        title: createTitle.trim() || "Lesson video",
-        description: createDescription.trim() || undefined,
-      });
-      const finalUrl =
-        res.data?.data?.url?.trim() || res.data?.data?.embed_url?.trim() || "";
-      if (!finalUrl) throw new Error("Upload did not return a video URL");
-      setCreateVideoUrl(finalUrl);
-      toast.success("Video uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload video";
-      toast.error(message);
-    } finally {
-      setUploadingVideo(false);
-    }
-  };
-
-  const handleCreateLessonThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    setUploadingThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) throw new Error("Upload did not return a file URL");
-      setCreateThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(message);
-    } finally {
-      setUploadingThumbnail(false);
-    }
-  };
-
-  const autoUploadCreateThumbnailUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed || !isHttpUrl(trimmed) || isMinioUrl(trimmed)) return;
-    setUploadingThumbnail(true);
-    try {
-      const minioUrl = await resolveThumbnailToMinioUrl(trimmed);
-      if (minioUrl && minioUrl !== trimmed) {
-        setCreateThumbnail(minioUrl);
-        toast.success("Thumbnail uploaded to MinIO");
-      }
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload URL to MinIO";
-      toast.error(message);
-    } finally {
-      setUploadingThumbnail(false);
-    }
-  };
-
-  const handleCreateLesson = async () => {
-    if (!Number.isFinite(parsedModuleId) || parsedModuleId < 1) {
-      toast.error("Invalid module");
-      return;
-    }
-    const title = createTitle.trim();
-    const videoUrl = createVideoUrl.trim();
-    if (!title) {
-      toast.error("Lesson title is required");
-      return;
-    }
-    if (!videoUrl) {
-      toast.error("Video URL is required");
-      return;
-    }
-
-    setCreatingLesson(true);
-    try {
-      const minioThumbnail = await resolveThumbnailToMinioUrl(createThumbnail);
-      await createExamPrepModuleLesson(parsedModuleId, {
-        title,
-        video_url: videoUrl,
-        thumbnail: minioThumbnail || null,
-        description: createDescription.trim() || null,
-      });
-      await loadLessons();
-      toast.success("Lesson created");
-      clearCreateLessonForm();
-      setCreateLessonOpen(false);
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create lesson";
-      toast.error(message);
-    } finally {
-      setCreatingLesson(false);
-    }
-  };
-
-  const openEditLesson = (lesson: (typeof lessons)[number]) => {
-    setEditingLessonId(lesson.id);
-    setEditTitle(lesson.title ?? "");
-    setEditVideoUrl(lesson.videoUrl ?? "");
-    setEditThumbnail(lesson.thumbnail ?? "");
-    setEditDescription(lesson.description ?? "");
-    setEditSortOrder(String(lesson.sortOrder ?? 1));
-  };
-
-  const closeEditLesson = () => {
-    if (savingEdit || uploadingEditThumbnail || uploadingEditVideo) return;
-    setEditingLessonId(null);
-    setEditTitle("");
-    setEditVideoUrl("");
-    setEditThumbnail("");
-    setEditDescription("");
-    setEditSortOrder("1");
-  };
-
-  const handleEditLessonVideoFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("video/")) {
-      toast.error("Please choose a video file");
-      return;
-    }
-    setUploadingEditVideo(true);
-    try {
-      const res = await uploadVideoFile(file, {
-        title: editTitle.trim() || "Lesson video",
-        description: editDescription.trim() || undefined,
-      });
-      const finalUrl =
-        res.data?.data?.url?.trim() || res.data?.data?.embed_url?.trim() || "";
-      if (!finalUrl) throw new Error("Upload did not return a video URL");
-      setEditVideoUrl(finalUrl);
-      toast.success("Video uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload video";
-      toast.error(message);
-    } finally {
-      setUploadingEditVideo(false);
-    }
-  };
-
-  const handleEditLessonThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    setUploadingEditThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) throw new Error("Upload did not return a file URL");
-      setEditThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(message);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const autoUploadEditThumbnailUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed || !isHttpUrl(trimmed) || isMinioUrl(trimmed)) return;
-    setUploadingEditThumbnail(true);
-    try {
-      const minioUrl = await resolveThumbnailToMinioUrl(trimmed);
-      if (minioUrl && minioUrl !== trimmed) {
-        setEditThumbnail(minioUrl);
-        toast.success("Thumbnail uploaded to MinIO");
-      }
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload URL to MinIO";
-      toast.error(message);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const handleSaveEditLesson = async () => {
-    if (!editingLessonId) return;
-    const title = editTitle.trim();
-    if (!title) {
-      toast.error("Lesson title is required");
-      return;
-    }
-    const sortOrderNum = Number(editSortOrder);
-    if (!Number.isFinite(sortOrderNum) || sortOrderNum < 0) {
-      toast.error("Sort order must be a valid number");
-      return;
-    }
-
-    setSavingEdit(true);
-    try {
-      const minioThumbnail = await resolveThumbnailToMinioUrl(editThumbnail);
-      await updateExamPrepModuleLesson(editingLessonId, {
-        title,
-        video_url: editVideoUrl.trim() || null,
-        thumbnail: minioThumbnail || null,
-        description: editDescription.trim() || null,
-        sort_order: sortOrderNum,
-      });
-      await loadLessons();
-      toast.success("Lesson updated");
-      closeEditLesson();
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update lesson";
-      toast.error(message);
-    } finally {
-      setSavingEdit(false);
-    }
-  };
-
-  const handleDeleteLesson = async () => {
-    if (!deletingLessonId) return;
-    setDeletingLesson(true);
-    try {
-      await deleteExamPrepModuleLesson(deletingLessonId);
-      await loadLessons();
-      toast.success("Lesson deleted");
-      setDeletingLessonId(null);
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete lesson";
-      toast.error(message);
-    } finally {
-      setDeletingLesson(false);
-    }
-  };
+  const content = activeTab === "video" ? MOCK_VIDEOS : MOCK_PRACTICES;
+  const filteredContent = content.filter((item) => {
+    if (activeFilter === "All") return true;
+    if (activeFilter === "Drafts") return item.status === "Draft";
+    return item.status === activeFilter;
+  });
 
   return (
     <div className="space-y-8 animate-in fade-in duration-500 pb-10">
@@ -483,188 +110,10 @@ export function CourseModuleDetailPage() {
             <FileText className="h-5 w-5" />
             Attach Practice
           </Button>
-          <Dialog
-            open={createLessonOpen}
-            onOpenChange={(open) => {
-              if (!open && (creatingLesson || uploadingThumbnail || uploadingVideo))
-                return;
-              setCreateLessonOpen(open);
-            }}
-          >
-            <DialogTrigger asChild>
-              <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-md hover:bg-brand-600 transition-all flex items-center gap-2 text-[15px]">
-                <Plus className="h-5 w-5" />
-                Add Lesson
-              </Button>
-            </DialogTrigger>
-            <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-[600px] flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0">
-              <div className="flex min-h-0 flex-1 flex-col bg-white">
-                <DialogHeader className="shrink-0 px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
-                  <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                    Create Lesson
-                  </DialogTitle>
-                </DialogHeader>
-                <div className="min-h-0 flex-1 overflow-y-auto p-8 space-y-8">
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Lesson Title
-                    </label>
-                    <Input
-                      value={createTitle}
-                      onChange={(e) => setCreateTitle(e.target.value)}
-                      placeholder="e.g. Intro lesson"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    />
-                  </div>
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Video URL
-                    </label>
-                    <input
-                      ref={createVideoFileInputRef}
-                      type="file"
-                      accept="video/*"
-                      className="sr-only"
-                      onChange={(e) => void handleCreateLessonVideoFile(e)}
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    />
-                    <button
-                      type="button"
-                      className="relative group w-full cursor-pointer"
-                      onClick={() => createVideoFileInputRef.current?.click()}
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    >
-                      <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all">
-                        <div className="mb-4">
-                          <img
-                            src={uploadIcon}
-                            alt="Upload icon"
-                            className="h-10 w-10"
-                          />
-                        </div>
-                        <p className="text-[15px]">
-                          <span className="text-brand-500 font-bold hover:underline">
-                            {uploadingVideo ? "Uploading…" : "Click to upload"}
-                          </span>{" "}
-                          <span className="text-grayScale-500">
-                            video from your computer
-                          </span>
-                        </p>
-                        <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                          MP4, MOV, WEBM
-                        </p>
-                      </div>
-                    </button>
-                    <Input
-                      value={createVideoUrl}
-                      onChange={(e) => setCreateVideoUrl(e.target.value)}
-                      placeholder="https://example.com/video"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    />
-                  </div>
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Description
-                    </label>
-                    <Textarea
-                      value={createDescription}
-                      onChange={(e) => setCreateDescription(e.target.value)}
-                      placeholder="Optional lesson description"
-                      rows={4}
-                      className="min-h-[96px] rounded-[8px] border-grayScale-400"
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    />
-                  </div>
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Thumbnail
-                    </label>
-                    <input
-                      ref={createThumbnailFileInputRef}
-                      type="file"
-                      accept="image/*"
-                      className="sr-only"
-                      onChange={(e) => void handleCreateLessonThumbnailFile(e)}
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    />
-                    <button
-                      type="button"
-                      className="relative group w-full cursor-pointer"
-                      onClick={() => createThumbnailFileInputRef.current?.click()}
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    >
-                      <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all">
-                        <div className="mb-4">
-                          <img
-                            src={uploadIcon}
-                            alt="Upload icon"
-                            className="h-10 w-10"
-                          />
-                        </div>
-                        <p className="text-[15px]">
-                          <span className="text-brand-500 font-bold hover:underline">
-                            {uploadingThumbnail ? "Uploading…" : "Click to upload"}
-                          </span>{" "}
-                          <span className="text-grayScale-500">
-                            or paste a URL below
-                          </span>
-                        </p>
-                        <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                          JPG, PNG (MAX 5 MB)
-                        </p>
-                      </div>
-                    </button>
-                    {createThumbnail.trim() ? (
-                      <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                        <ResolvedImage
-                          src={createThumbnail.trim()}
-                          alt=""
-                          className="h-28 w-full object-cover"
-                        />
-                      </div>
-                    ) : null}
-                    <Input
-                      value={createThumbnail}
-                      onChange={(e) => setCreateThumbnail(e.target.value)}
-                      onPaste={(event) => {
-                        const pasted = event.clipboardData?.getData("text")?.trim();
-                        if (!pasted) return;
-                        setTimeout(() => {
-                          void autoUploadCreateThumbnailUrl(pasted);
-                        }, 0);
-                      }}
-                      placeholder="Optional thumbnail URL (or leave empty for null)"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    />
-                  </div>
-                </div>
-                <div className="shrink-0 px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
-                  <DialogClose asChild>
-                    <Button
-                      type="button"
-                      variant="outline"
-                      className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                      disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                      onClick={clearCreateLessonForm}
-                    >
-                      Cancel
-                    </Button>
-                  </DialogClose>
-                  <Button
-                    type="button"
-                    className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600"
-                    disabled={creatingLesson || uploadingThumbnail || uploadingVideo}
-                    onClick={() => void handleCreateLesson()}
-                  >
-                    {creatingLesson ? "Creating..." : "Create Lesson"}
-                  </Button>
-                </div>
-              </div>
-            </DialogContent>
-          </Dialog>
+          <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-md hover:bg-brand-600 transition-all flex items-center gap-2 text-[15px]">
+            <Plus className="h-5 w-5" />
+            Add Video
+          </Button>
         </div>
       </div>
 
@@ -679,7 +128,7 @@ export function CourseModuleDetailPage() {
               : "text-grayScale-400 hover:text-grayScale-600",
           )}
         >
-          Lesson
+          Video
         </button>
         <button
           onClick={() => setActiveTab("practice")}
@@ -694,245 +143,40 @@ export function CourseModuleDetailPage() {
         </button>
       </div>
 
-      {/* Grid of Content */}
-      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 pt-4">
-        {activeTab === "video" ? (
-          lessonsLoading ? (
-            <p className="text-sm text-grayScale-500">Loading lessons...</p>
-          ) : lessons.length === 0 ? (
-            <div className="col-span-full rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-              <p className="text-sm font-medium text-grayScale-600">
-                No lessons for this module yet
-              </p>
-              <p className="mt-1 text-sm text-grayScale-400">
-                Create your first lesson to start building this module.
-              </p>
-            </div>
-          ) : (
-            lessons.map((lesson) => (
-              <VideoCard
-                key={lesson.id}
-                title={lesson.title}
-                thumbnailUrl={lesson.thumbnail}
-                videoUrl={lesson.videoUrl}
-                thumbnailGradient={lesson.gradient}
-                hoverModuleActions
-                onEdit={() => openEditLesson(lesson)}
-                onDelete={() => setDeletingLessonId(lesson.id)}
-              />
-            ))
-          )
-        ) : (
-          MOCK_PRACTICES.map((item) => <PracticeCard key={item.id} {...item} />)
-        )}
+      {/* Filter Bar */}
+      <div className="bg-white border border-grayScale-100 rounded-[16px] p-4 flex items-center gap-8 shadow-sm">
+        <div className="text-[12px] font-bold text-grayScale-300 uppercase tracking-widest pl-4">
+          STATUS:
+        </div>
+        <div className="flex items-center gap-2">
+          {["All", "Published", "Drafts", "Archived"].map((filter) => (
+            <button
+              key={filter}
+              onClick={() => setActiveFilter(filter)}
+              className={cn(
+                "px-5 py-2 rounded-full text-[13px] font-bold transition-all",
+                activeFilter === filter
+                  ? "bg-brand-500 text-white shadow-md shadow-brand-500/20"
+                  : "bg-grayScale-100 text-grayScale-500 hover:bg-grayScale-200",
+              )}
+            >
+              {filter}
+            </button>
+          ))}
+        </div>
       </div>
 
-      <Dialog
-        open={editingLessonId !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingEdit || uploadingEditThumbnail || uploadingEditVideo))
-            return;
-          if (!open) closeEditLesson();
-        }}
-      >
-        <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-[600px] flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0">
-          <div className="flex min-h-0 flex-1 flex-col bg-white">
-            <DialogHeader className="shrink-0 px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
-              <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                Edit Lesson
-              </DialogTitle>
-            </DialogHeader>
-            <div className="min-h-0 flex-1 overflow-y-auto p-8 space-y-8">
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Lesson Title</label>
-                <Input
-                  value={editTitle}
-                  onChange={(e) => setEditTitle(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Video URL</label>
-                <input
-                  ref={editVideoFileInputRef}
-                  type="file"
-                  accept="video/*"
-                  className="sr-only"
-                  onChange={(e) => void handleEditLessonVideoFile(e)}
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-                <button
-                  type="button"
-                  className="relative group w-full cursor-pointer"
-                  onClick={() => editVideoFileInputRef.current?.click()}
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                >
-                  <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all">
-                    <div className="mb-4">
-                      <img src={uploadIcon} alt="Upload icon" className="h-10 w-10" />
-                    </div>
-                    <p className="text-[15px]">
-                      <span className="text-brand-500 font-bold hover:underline">
-                        {uploadingEditVideo ? "Uploading…" : "Click to upload"}
-                      </span>{" "}
-                      <span className="text-grayScale-500">
-                        video from your computer
-                      </span>
-                    </p>
-                    <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                      MP4, MOV, WEBM
-                    </p>
-                  </div>
-                </button>
-                <Input
-                  value={editVideoUrl}
-                  onChange={(e) => setEditVideoUrl(e.target.value)}
-                  placeholder="https://example.com/video"
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Description</label>
-                <Textarea
-                  value={editDescription}
-                  onChange={(e) => setEditDescription(e.target.value)}
-                  rows={4}
-                  className="min-h-[96px] rounded-[8px] border-grayScale-400"
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Sort Order</label>
-                <Input
-                  type="number"
-                  min={0}
-                  value={editSortOrder}
-                  onChange={(e) => setEditSortOrder(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-              </div>
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Thumbnail</label>
-                <input
-                  ref={editThumbnailFileInputRef}
-                  type="file"
-                  accept="image/*"
-                  className="sr-only"
-                  onChange={(e) => void handleEditLessonThumbnailFile(e)}
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-                <button
-                  type="button"
-                  className="relative group w-full cursor-pointer"
-                  onClick={() => editThumbnailFileInputRef.current?.click()}
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                >
-                  <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all">
-                    <div className="mb-4">
-                      <img src={uploadIcon} alt="Upload icon" className="h-10 w-10" />
-                    </div>
-                    <p className="text-[15px]">
-                      <span className="text-brand-500 font-bold hover:underline">
-                        {uploadingEditThumbnail ? "Uploading…" : "Click to upload"}
-                      </span>{" "}
-                      <span className="text-grayScale-500">or paste a URL below</span>
-                    </p>
-                    <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                      JPG, PNG (MAX 5 MB)
-                    </p>
-                  </div>
-                </button>
-                {editThumbnail.trim() ? (
-                  <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                    <ResolvedImage
-                      src={editThumbnail.trim()}
-                      alt=""
-                      className="h-28 w-full object-cover"
-                    />
-                  </div>
-                ) : null}
-                <Input
-                  value={editThumbnail}
-                  onChange={(e) => setEditThumbnail(e.target.value)}
-                  onPaste={(event) => {
-                    const pasted = event.clipboardData?.getData("text")?.trim();
-                    if (!pasted) return;
-                    setTimeout(() => {
-                      void autoUploadEditThumbnailUrl(pasted);
-                    }, 0);
-                  }}
-                  placeholder="Optional thumbnail URL (or leave empty for null)"
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4"
-                  disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                />
-              </div>
-            </div>
-            <div className="shrink-0 px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
-              <Button
-                type="button"
-                variant="outline"
-                className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                onClick={closeEditLesson}
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600"
-                disabled={savingEdit || uploadingEditThumbnail || uploadingEditVideo}
-                onClick={() => void handleSaveEditLesson()}
-              >
-                {savingEdit ? "Saving..." : "Save Changes"}
-              </Button>
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
-
-      <Dialog
-        open={deletingLessonId !== null}
-        onOpenChange={(open) => {
-          if (!open && !deletingLesson) setDeletingLessonId(null);
-        }}
-      >
-        <DialogContent className="max-w-md rounded-[16px] border-none p-0 overflow-hidden">
-          <div className="bg-white">
-            <DialogHeader className="border-b border-grayScale-100 px-6 py-5">
-              <DialogTitle className="text-lg font-bold text-grayScale-900">
-                Delete Lesson
-              </DialogTitle>
-            </DialogHeader>
-            <div className="px-6 py-6 text-sm text-grayScale-600">
-              Are you sure you want to delete this lesson? This action cannot be undone.
-            </div>
-            <div className="flex justify-end gap-3 border-t border-grayScale-100 px-6 py-4">
-              <Button
-                variant="outline"
-                onClick={() => setDeletingLessonId(null)}
-                disabled={deletingLesson}
-              >
-                Cancel
-              </Button>
-              <Button
-                className="bg-red-500 hover:bg-red-600"
-                onClick={() => void handleDeleteLesson()}
-                disabled={deletingLesson}
-              >
-                {deletingLesson ? "Deleting..." : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
+      {/* Grid of Content */}
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 pt-4">
+        {filteredContent.map((item) => (
+          <ContentCard key={item.id} {...item} />
+        ))}
+      </div>
     </div>
   );
 }
 
-function PracticeCard({
+function ContentCard({
   title,
   duration,
   status,
@@ -970,7 +214,9 @@ function PracticeCard({
             />
             {status}
           </div>
-          <div />
+          <button className="h-8 w-8 rounded-lg flex items-center justify-center text-grayScale-300 hover:text-grayScale-600 transition-colors">
+            <MoreVertical className="h-5 w-5" />
+          </button>
         </div>
 
         <h3 className="text-[14px] font-bold text-[#0F172A] line-clamp-2 leading-snug">
@@ -978,7 +224,11 @@ function PracticeCard({
         </h3>
 
         <div className="pt-2 grid grid-cols-1 gap-2 mt-auto">
-          <Button variant="outline" className="w-full h-10 rounded-[10px] border-grayScale-200 text-grayScale-600 font-bold text-xs">
+          <Button
+            variant="outline"
+            className="w-full h-10 rounded-[10px] border-grayScale-200 text-grayScale-600 font-bold flex items-center justify-center gap-2 text-xs hover:bg-grayScale-25"
+          >
+            <Edit2 className="h-4 w-4" />
             Edit
           </Button>
           <Button
@@ -996,4 +246,3 @@ function PracticeCard({
     </Card>
   );
 }
-

src/pages/content-management/LearnEnglishPage.tsx

@@ -1,7 +1,5 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { Plus, ArrowRight, Pencil, Trash2, X } from "lucide-react";
+import { Plus, ArrowRight } from "lucide-react";
 import { Link } from "react-router-dom";
-import { toast } from "sonner";
 import { Card, CardContent } from "../../components/ui/card";
 import { Button } from "../../components/ui/button";
 import {
@@ -11,250 +9,33 @@ import {
   DialogTitle,
   DialogDescription,
   DialogTrigger,
-  DialogFooter,
+  DialogClose,
 } from "../../components/ui/dialog";
 import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
+import { Select } from "../../components/ui/select";
 import uploadIcon from "../../assets/icons/upload.png";
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg";
-import alertSrc from "../../assets/Alert.svg";
-import {
-  getLearningPrograms,
-  createLearningProgram,
-  updateLearningProgram,
-  deleteLearningProgram,
-} from "../../api/courses.api";
-import { uploadImageFile } from "../../api/files.api";
-import type { LearningProgramListItem } from "../../types/course.types";
 
 export function LearnEnglishPage() {
-  const [programs, setPrograms] = useState<LearningProgramListItem[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-
-  const [editingProgram, setEditingProgram] =
-    useState<LearningProgramListItem | null>(null);
-  const [editName, setEditName] = useState("");
-  const [editDescription, setEditDescription] = useState("");
-  const [editThumbnail, setEditThumbnail] = useState("");
-  const [savingEdit, setSavingEdit] = useState(false);
-  const [uploadingEditThumbnail, setUploadingEditThumbnail] = useState(false);
-  const editThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-
-  const [createOpen, setCreateOpen] = useState(false);
-  const [createName, setCreateName] = useState("");
-  const [createDescription, setCreateDescription] = useState("");
-  const [createThumbnail, setCreateThumbnail] = useState("");
-  const [createSaving, setCreateSaving] = useState(false);
-  const [createUploadingThumbnail, setCreateUploadingThumbnail] = useState(false);
-  const createThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-
-  const [deletingProgram, setDeletingProgram] =
-    useState<LearningProgramListItem | null>(null);
-  const [deleting, setDeleting] = useState(false);
-
-  const openEdit = (program: LearningProgramListItem) => {
-    setEditingProgram(program);
-    setEditName(program.name ?? "");
-    setEditDescription(program.description?.trim() ?? "");
-    setEditThumbnail(program.thumbnail?.trim() ?? "");
-  };
-
-  const closeEdit = () => {
-    setEditingProgram(null);
-    setEditName("");
-    setEditDescription("");
-    setEditThumbnail("");
-    setUploadingEditThumbnail(false);
-    if (editThumbnailFileInputRef.current) editThumbnailFileInputRef.current.value = "";
-  };
-
-  const handleEditThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setUploadingEditThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setEditThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(msg);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const clearCreateFormFields = () => {
-    setCreateName("");
-    setCreateDescription("");
-    setCreateThumbnail("");
-    if (createThumbnailFileInputRef.current) {
-      createThumbnailFileInputRef.current.value = "";
-    }
-  };
-
-  const handleCreateDialogOpenChange = (open: boolean) => {
-    if (!open && (createSaving || createUploadingThumbnail)) return;
-    clearCreateFormFields();
-    setCreateOpen(open);
-  };
-
-  const handleCreateThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setCreateUploadingThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setCreateThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(msg);
-    } finally {
-      setCreateUploadingThumbnail(false);
-    }
-  };
-
-  const handleCreateProgram = async () => {
-    const name = createName.trim();
-    if (!name) {
-      toast.error("Program name is required");
-      return;
-    }
-    setCreateSaving(true);
-    try {
-      await createLearningProgram({
-        name,
-        description: createDescription.trim(),
-        thumbnail: createThumbnail.trim(),
-      });
-      toast.success("Program created");
-      clearCreateFormFields();
-      setCreateOpen(false);
-      await fetchPrograms();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create program";
-      toast.error(msg);
-    } finally {
-      setCreateSaving(false);
-    }
-  };
-
-  const handleSaveEdit = async () => {
-    if (!editingProgram) return;
-    const name = editName.trim();
-    if (!name) {
-      toast.error("Program name is required");
-      return;
-    }
-    setSavingEdit(true);
-    try {
-      await updateLearningProgram(editingProgram.id, {
-        name,
-        description: editDescription.trim(),
-        thumbnail: editThumbnail.trim(),
-      });
-      toast.success("Program updated");
-      closeEdit();
-      await fetchPrograms();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update program";
-      toast.error(msg);
-    } finally {
-      setSavingEdit(false);
-    }
-  };
-
-  const handleConfirmDelete = async () => {
-    if (!deletingProgram) return;
-    setDeleting(true);
-    try {
-      await deleteLearningProgram(deletingProgram.id);
-      toast.success("Program deleted");
-      setDeletingProgram(null);
-      await fetchPrograms();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete program";
-      toast.error(msg);
-    } finally {
-      setDeleting(false);
-    }
-  };
-
-  const fetchPrograms = useCallback(async () => {
-    setLoading(true);
-    setError(null);
-    try {
-      const res = await getLearningPrograms({ limit: 100, offset: 0 });
-      const raw = res.data?.data?.programs;
-      const list = Array.isArray(raw) ? raw : [];
-      const sorted = [...list].sort(
-        (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-      );
-      setPrograms(sorted);
-    } catch (e) {
-      console.error(e);
-      setError("Failed to load programs");
-      setPrograms([]);
-      toast.error("Could not load programs", {
-        description: "Check your connection or try again.",
-      });
-    } finally {
-      setLoading(false);
-    }
-  }, []);
-
-  useEffect(() => {
-    void fetchPrograms();
-  }, [fetchPrograms]);
+  const levels = [
+    {
+      id: "beginner",
+      title: "Beginner",
+      description:
+        "Designed for learners starting from scratch. Focuses on simple grammar, and everyday communication.",
+    },
+    {
+      id: "intermediate",
+      title: "Intermediate",
+      description:
+        "For learners who can communicate at a basic level and want to improve fluency, accuracy, and confidence.",
+    },
+    {
+      id: "advanced",
+      title: "Advanced",
+      description:
+        "Targets advanced learners aiming for professional, academic, and complex conversational English.",
+    },
+  ];
 
   return (
     <div className="space-y-8">
@@ -265,163 +46,115 @@ export function LearnEnglishPage() {
             Learn English
           </h1>
           <p className="mt-1 text-sm text-grayScale-500">
-            Manage learning content by program — cards load from the server
+            Manage learning content by level
           </p>
         </div>
 
-        <Dialog open={createOpen} onOpenChange={handleCreateDialogOpenChange}>
+        <Dialog>
           <DialogTrigger asChild>
             <Button className="h-11 rounded-[6px] bg-brand-500 px-6 font-semibold ">
               <Plus className="mr-2 h-5 w-5" />
               Add Program
             </Button>
           </DialogTrigger>
-          <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-2xl flex-col gap-0 overflow-hidden border-none p-0">
-            <div className="shrink-0">
-              <DialogHeader className="p-8 pb-4">
-                <DialogTitle className="text-2xl font-bold text-grayScale-700">
-                  Add New Program
-                </DialogTitle>
-                <DialogDescription className="text-sm text-grayScale-400">
-                  Create a learning program via{" "}
-                  <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px] text-grayScale-600">
-                    POST /programs
-                  </code>
-                  . Thumbnail can be a URL or a file uploaded through{" "}
-                  <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px] text-grayScale-600">
-                    POST /files/upload
-                  </code>
-                  .
-                </DialogDescription>
-              </DialogHeader>
-              {/* Gradient Divider */}
-              <div className="relative">
+          <DialogContent className="max-w-2xl gap-0 border-none p-0">
+            <DialogHeader className="p-8 pb-4">
+              <DialogTitle className="text-2xl font-bold text-grayScale-700">
+                Add New Program
+              </DialogTitle>
+              <DialogDescription className="text-sm text-grayScale-400">
+                Create a learning program to group courses by learner level
+              </DialogDescription>
+            </DialogHeader>
+            {/* Gradient Divider */}
+            <div className="relative">
+              <div
+                className="absolute inset-0 flex items-center"
+                aria-hidden="true"
+              >
+                <div className="w-full border-t border-grayScale-200" />
+              </div>
+              <div className="relative flex justify-center">
                 <div
-                  className="absolute inset-0 flex items-center"
-                  aria-hidden="true"
-                >
-                  <div className="w-full border-t border-grayScale-200" />
-                </div>
-                <div className="relative flex justify-center">
-                  <div
-                    className="h-[0.5px] w-full opacity-20 rounded-full"
-                    style={{
-                      background: "gray",
-                    }}
-                  />
-                </div>
+                  className="h-[0.5px] w-full opacity-20 rounded-full"
+                  style={{
+                    background: "gray",
+                  }}
+                />
               </div>
             </div>
 
-            <form
-              className="flex min-h-0 flex-1 flex-col"
-              onSubmit={(e) => {
-                e.preventDefault();
-                void handleCreateProgram();
-              }}
-            >
-              <div className="min-h-0 flex-1 space-y-6 overflow-y-auto overscroll-contain px-8 py-4">
-                <div className="space-y-2">
-                  <label className="text-[15px] text-grayScale-700">
-                    Program Name
-                  </label>
-                  <Input
-                    value={createName}
-                    onChange={(e) => setCreateName(e.target.value)}
-                    placeholder="e.g. Intermediate Track"
-                    className="h-12 rounded-xl ring-0"
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                </div>
+            <form className="space-y-6 p-8 pt-4">
+              <div className="space-y-2">
+                <label className="text-[15px] text-grayScale-700">
+                  Program Name
+                </label>
+                <Input
+                  placeholder="e.g. Beginner"
+                  className="h-12 rounded-xl ring-0"
+                />
+              </div>
 
-                <div className="space-y-2">
-                  <label className="text-[15px] text-grayScale-700">
-                    Description
-                  </label>
-                  <Textarea
-                    value={createDescription}
-                    onChange={(e) => setCreateDescription(e.target.value)}
-                    placeholder="Short summary of the program"
-                    rows={3}
-                    className="min-h-[88px] resize-y rounded-xl"
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                </div>
+              <div className="space-y-2">
+                <label className="text-[15px] text-grayScale-700">
+                  Description
+                </label>
+                <Input
+                  placeholder="Short description explaining who this program is for"
+                  className="h-12 rounded-xl"
+                />
+              </div>
 
-                <div className="space-y-2">
-                  <label className="text-[15px] text-grayScale-700">
-                    Thumbnail
-                  </label>
-                  <input
-                    ref={createThumbnailFileInputRef}
-                    type="file"
-                    accept="image/*"
-                    className="sr-only"
-                    onChange={(e) => void handleCreateThumbnailFile(e)}
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                  <button
-                    type="button"
-                    className="relative w-full cursor-pointer rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-left transition-all hover:border-[#9E289180] disabled:cursor-not-allowed disabled:opacity-60"
-                    disabled={createSaving || createUploadingThumbnail}
-                    onClick={() => createThumbnailFileInputRef.current?.click()}
-                  >
-                    <div className="flex flex-col items-center justify-center">
-                      <div className="mb-4">
-                        <img
-                          src={uploadIcon}
-                          alt=""
-                          className="h-10 w-10"
-                        />
-                      </div>
-                      <p className="text-sm">
-                        <span className="font-bold text-[#9E2891]">
-                          {createUploadingThumbnail ? "Uploading…" : "Click to upload"}
-                        </span>{" "}
-                        <span className="text-grayScale-500">
-                          or paste a URL below
-                        </span>
-                      </p>
-                      <p className="mt-1 text-xs font-medium text-grayScale-400 uppercase tracking-wider">
-                        JPG, PNG (max 5 MB)
-                      </p>
-                    </div>
-                  </button>
-                  {createThumbnail.trim() ? (
-                    <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
+              <div className="space-y-2">
+                <label className="text-[15px]  text-grayScale-700">
+                  Program Order
+                </label>
+                <Select className="h-12 rounded-xl">
+                  <option value="1">1</option>
+                  <option value="2">2</option>
+                  <option value="3">3</option>
+                </Select>
+              </div>
+
+              <div className="space-y-2">
+                <label className="text-[15px] text-grayScale-700">
+                  Thumbnail
+                </label>
+                <div className="relative group cursor-pointer">
+                  <div className="flex flex-col items-center justify-center rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 transition-all ">
+                    <div className="mb-4">
                       <img
-                        src={createThumbnail.trim()}
-                        alt=""
-                        className="h-28 w-full object-cover"
+                        src={uploadIcon}
+                        alt="Upload icon"
+                        className="h-10 w-10"
                       />
                     </div>
-                  ) : null}
-                  <Input
-                    value={createThumbnail}
-                    onChange={(e) => setCreateThumbnail(e.target.value)}
-                    className="h-12 rounded-xl"
-                    placeholder="https://…"
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
+                    <p className="text-sm">
+                      <span className="font-bold text-[#9E2891]">
+                        Click to upload
+                      </span>{" "}
+                      <span className="text-grayScale-500">
+                        or drag and drop
+                      </span>
+                    </p>
+                    <p className="mt-1 text-xs font-medium text-grayScale-400 uppercase tracking-wider">
+                      JPG, PNG (MAX 1 MB)
+                    </p>
+                  </div>
                 </div>
               </div>
 
-              <div className="flex shrink-0 justify-end gap-3 border-t border-grayScale-100 bg-white px-8 py-4">
-                <Button
-                  type="button"
-                  variant="outline"
-                  className="h-12 min-w-[120px] rounded-[6px] border-grayScale-200 font-semibold"
-                  disabled={createSaving || createUploadingThumbnail}
-                  onClick={() => handleCreateDialogOpenChange(false)}
-                >
-                  Cancel
-                </Button>
-                <Button
-                  type="submit"
-                  className="h-12 min-w-[160px] rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600"
-                  disabled={createSaving || createUploadingThumbnail}
-                >
-                  {createSaving ? "Creating…" : "Create Program"}
+              <div className="flex justify-end gap-3 pt-4">
+                <DialogClose asChild>
+                  <Button
+                    variant="outline"
+                    className="h-12 min-w-[120px] rounded-[6px] border-grayScale-200 font-semibold"
+                  >
+                    Cancel
+                  </Button>
+                </DialogClose>
+                <Button className="h-12 min-w-[160px] rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600">
+                  Create Program
                 </Button>
               </div>
             </form>
@@ -444,263 +177,40 @@ export function LearnEnglishPage() {
         </div>
       </div>
 
-      {loading ? (
-        <div className="flex flex-col items-center justify-center py-20">
-          <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
-          <p className="mt-3 text-sm text-grayScale-500">Loading programs…</p>
-        </div>
-      ) : error ? (
-        <div className="flex flex-col items-center justify-center rounded-xl border border-red-100 bg-red-50/60 px-6 py-14 text-center">
-          <img src={alertSrc} alt="" className="h-10 w-10" />
-          <p className="mt-3 text-sm font-medium text-red-700">{error}</p>
-          <Button
-            type="button"
-            variant="outline"
-            className="mt-4"
-            onClick={() => void fetchPrograms()}
+      {/* Cards Grid */}
+      <div className="flex flex-warp gap-10">
+        {levels.map((level) => (
+          <Card
+            key={level.title}
+            className="group w-[290px] overflow-hidden border-none shadow-soft transition-all duration-300 hover:-translate-y-1 hover:shadow-lg"
           >
-            Try again
-          </Button>
-        </div>
-      ) : programs.length === 0 ? (
-        <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-          <p className="text-sm font-medium text-grayScale-600">
-            No programs yet
-          </p>
-          <p className="mt-1 text-sm text-grayScale-400">
-            Add programs in the backend or use Add Program when it is connected.
-          </p>
-        </div>
-      ) : (
-        <div className="flex flex-wrap gap-10">
-          {programs.map((program) => (
-            <Card
-              key={program.id}
-              className="group relative w-[290px] overflow-hidden border-none shadow-soft transition-all duration-300 hover:-translate-y-1 hover:shadow-lg"
-            >
-              <div
-                className="absolute right-2 top-2 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto"
-              >
-                <Button
-                  type="button"
-                  variant="secondary"
-                  size="icon"
-                  className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                  aria-label={`Edit ${program.name}`}
-                  onClick={() => openEdit(program)}
-                >
-                  <Pencil className="h-3.5 w-3.5" />
-                </Button>
-                <Button
-                  type="button"
-                  variant="secondary"
-                  size="icon"
-                  className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                  aria-label={`Delete ${program.name}`}
-                  onClick={() => setDeletingProgram(program)}
-                >
-                  <Trash2 className="h-3.5 w-3.5" />
-                </Button>
+            {/* Gradient Header */}
+            <div
+              className="h-32 w-full"
+              style={{
+                background:
+                  "linear-gradient(135deg, #9E289180 0%, #9E2891 100%)",
+              }}
+            />
+            <CardContent className="bg-white p-6 flex flex-col h-[280px]">
+              <div className="flex-1">
+                <h3 className="text-xl font-bold text-grayScale-700">
+                  {level.title}
+                </h3>
+                <p className="mt-2 text-sm leading-relaxed text-grayScale-500">
+                  {level.description}
+                </p>
               </div>
-              <div
-                className="h-32 w-full bg-cover bg-center"
-                style={
-                  program.thumbnail?.trim()
-                    ? {
-                        backgroundImage: `url(${program.thumbnail.trim()})`,
-                      }
-                    : {
-                        background:
-                          "linear-gradient(135deg, #9E289180 0%, #9E2891 100%)",
-                      }
-                }
-              />
-              <CardContent className="bg-white p-6 flex flex-col h-[280px]">
-                <div className="flex-1 min-h-0">
-                  <h3 className="text-xl font-bold text-grayScale-700 line-clamp-2">
-                    {program.name}
-                  </h3>
-                  <p className="mt-2 text-sm leading-relaxed text-grayScale-500 line-clamp-4">
-                    {program.description?.trim()
-                      ? program.description
-                      : "—"}
-                  </p>
-                </div>
-                <Link
-                  to={`/new-content/learn-english/${program.id}/courses`}
-                  className="mt-4 block"
-                  onClick={(e) => e.stopPropagation()}
-                >
-                  <Button className="h-11 w-full rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600">
-                    View Courses
-                    <ArrowRight className="ml-2 h-4 w-4 transition-transform group-hover:translate-x-1" />
-                  </Button>
-                </Link>
-              </CardContent>
-            </Card>
-          ))}
-        </div>
-      )}
-
-      <Dialog
-        open={editingProgram !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingEdit || uploadingEditThumbnail)) return;
-          if (!open) closeEdit();
-        }}
-      >
-        <DialogContent className="max-w-lg">
-          <DialogHeader>
-            <DialogTitle>Edit program</DialogTitle>
-            <DialogDescription>
-              Update name, description, and thumbnail. Upload an image from your
-              computer (via file storage) or paste a URL. Changes are saved to the
-              server.
-            </DialogDescription>
-          </DialogHeader>
-          <div className="grid gap-4 py-2">
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Name
-              </label>
-              <Input
-                value={editName}
-                onChange={(e) => setEditName(e.target.value)}
-                className="rounded-xl"
-                placeholder="Program name"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Description
-              </label>
-              <Textarea
-                value={editDescription}
-                onChange={(e) => setEditDescription(e.target.value)}
-                rows={4}
-                className="rounded-xl resize-y min-h-[100px]"
-                placeholder="Short summary of the program"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Thumbnail
-              </label>
-              <input
-                ref={editThumbnailFileInputRef}
-                type="file"
-                accept="image/*"
-                className="sr-only"
-                onChange={(e) => void handleEditThumbnailFile(e)}
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-              <div className="flex flex-col gap-3 sm:flex-row sm:items-start">
-                <Button
-                  type="button"
-                  variant="outline"
-                  className="h-11 shrink-0 rounded-xl border-grayScale-200 font-semibold"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                  onClick={() => editThumbnailFileInputRef.current?.click()}
-                >
-                  {uploadingEditThumbnail ? "Uploading…" : "Upload from computer"}
+              <Link to={`/new-content/learn-english/${level.id}/courses`}>
+                <Button className="h-11 w-full rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600">
+                  View Courses
+                  <ArrowRight className="ml-2 h-4 w-4 transition-transform group-hover:translate-x-1" />
                 </Button>
-                {editThumbnail.trim() ? (
-                  <div className="flex-1 overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                    <img
-                      src={editThumbnail.trim()}
-                      alt=""
-                      className="h-24 w-full object-cover"
-                    />
-                  </div>
-                ) : null}
-              </div>
-              <Input
-                value={editThumbnail}
-                onChange={(e) => setEditThumbnail(e.target.value)}
-                className="rounded-xl"
-                placeholder="Or paste image URL (https://…)"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-              <p className="text-xs text-grayScale-500">
-                Local images are sent to{" "}
-                <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                  POST /files/upload
-                </code>
-                ; the returned URL is stored as the program thumbnail.
-              </p>
-            </div>
-          </div>
-          <DialogFooter className="gap-2 sm:gap-0">
-            <Button
-              type="button"
-              variant="outline"
-              onClick={closeEdit}
-              disabled={savingEdit || uploadingEditThumbnail}
-            >
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              className="bg-brand-500 hover:bg-brand-600"
-              disabled={savingEdit || uploadingEditThumbnail}
-              onClick={() => void handleSaveEdit()}
-            >
-              {savingEdit ? "Saving…" : "Save changes"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
-
-      {deletingProgram && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-          <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-            <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-              <h2 className="text-lg font-bold text-grayScale-700">Delete program</h2>
-              <button
-                type="button"
-                onClick={() => !deleting && setDeletingProgram(null)}
-                disabled={deleting}
-                className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-              >
-                <X className="h-5 w-5" />
-              </button>
-            </div>
-
-            <div className="px-6 py-6">
-              <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                <Trash2 className="h-5 w-5 text-red-500" />
-              </div>
-              <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                Are you sure you want to delete{" "}
-                <span className="font-semibold text-grayScale-700">{deletingProgram.name}</span>? This action cannot be
-                undone. Courses under this program may be affected depending on your backend.
-              </p>
-            </div>
-
-            <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
-              <Button
-                type="button"
-                variant="outline"
-                onClick={() => setDeletingProgram(null)}
-                disabled={deleting}
-                className="w-full sm:w-auto"
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                disabled={deleting}
-                onClick={() => void handleConfirmDelete()}
-              >
-                {deleting ? "Deleting…" : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </div>
-      )}
+              </Link>
+            </CardContent>
+          </Card>
+        ))}
+      </div>
     </div>
   );
 }

src/pages/content-management/ModuleDetailPage.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useState } from "react";
+import { useState } from "react";
 import {
   ArrowLeft,
   Video,
@@ -7,39 +7,42 @@ import {
   Layers,
   Edit2,
   Trash2,
-  X,
 } from "lucide-react";
-import { Link, useLocation, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
-import {
-  deleteTopLevelModuleLesson,
-  getModuleLessons,
-  getTopLevelCourseModules,
-  updateTopLevelModuleLesson,
-} from "../../api/courses.api";
-import type { TopLevelModuleLessonItem } from "../../types/course.types";
+import { Link, useNavigate, useParams } from "react-router-dom";
 import { Button } from "../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
-import { resolveThumbnailForPreview } from "../../lib/videoPreview";
 import { cn } from "../../lib/utils";
-import { LessonMediaUploadField } from "./components/LessonMediaUploadField";
 import { VideoCard } from "./components/VideoCard";
 
-const LESSON_THUMB_GRADIENTS = [
-  "from-[#CBD5E1] to-[#94A3B8]",
-  "from-[#DBEAFE] to-[#93C5FD]",
-  "from-[#FEF3C7] to-[#FCD34D]",
-  "from-[#FCE7F3] to-[#F9A8D4]",
-] as const;
+const MOCK_VIDEOS = [
+  {
+    id: "v1",
+    title: "1.1 Introduction to Formal Greetings",
+    duration: "08:45",
+    status: "Draft",
+    thumbnailGradient: "from-[#CBD5E1] to-[#94A3B8]",
+  },
+  {
+    id: "v2",
+    title: "1.2 Understanding Email Structure",
+    duration: "08:45",
+    status: "Published",
+    thumbnailGradient: "from-[#DBEAFE] to-[#93C5FD]",
+  },
+  {
+    id: "v3",
+    title: "1.3 Common Business Idioms",
+    duration: "08:45",
+    status: "Published",
+    thumbnailGradient: "from-[#FEF3C7] to-[#FCD34D]",
+  },
+  {
+    id: "v4",
+    title: "1.4 Video Conference Etiquette",
+    duration: "08:45",
+    status: "Published",
+    thumbnailGradient: "from-[#FCE7F3] to-[#F9A8D4]",
+  },
+];
 
 const MOCK_PRACTICES = [
   {
@@ -72,15 +75,8 @@ const MOCK_PRACTICES = [
   },
 ];
 
-type ModuleDetailState = {
-  moduleName?: string;
-  moduleDescription?: string;
-};
-
 export function ModuleDetailPage() {
   const navigate = useNavigate();
-  const location = useLocation();
-  const navState = location.state as ModuleDetailState | null;
   const { level, courseId, moduleId } = useParams<{
     level: string;
     courseId: string;
@@ -88,211 +84,14 @@ export function ModuleDetailPage() {
   }>();
   const [activeTab, setActiveTab] = useState<"video" | "practice">("video");
   const [activeFilter, setActiveFilter] = useState("Draft");
-  const [lessons, setLessons] = useState<TopLevelModuleLessonItem[]>([]);
-  const [lessonsLoading, setLessonsLoading] = useState(true);
-  const [lessonsLoadError, setLessonsLoadError] = useState<string | null>(null);
-  const [editingLesson, setEditingLesson] =
-    useState<TopLevelModuleLessonItem | null>(null);
-  const [editLessonTitle, setEditLessonTitle] = useState("");
-  const [editLessonVideoUrl, setEditLessonVideoUrl] = useState("");
-  const [editLessonThumbnail, setEditLessonThumbnail] = useState("");
-  const [editLessonDescription, setEditLessonDescription] = useState("");
-  const [savingLessonEdit, setSavingLessonEdit] = useState(false);
-  const [thumbUploadBusy, setThumbUploadBusy] = useState(false);
-  const [videoUploadBusy, setVideoUploadBusy] = useState(false);
-  const lessonMediaUploadBusy = thumbUploadBusy || videoUploadBusy;
-  const [deletingLesson, setDeletingLesson] =
-    useState<TopLevelModuleLessonItem | null>(null);
-  const [deletingLessonInFlight, setDeletingLessonInFlight] = useState(false);
+  const [videos] = useState(MOCK_VIDEOS);
   const [practices] = useState(MOCK_PRACTICES);
-  const [loadedModuleName, setLoadedModuleName] = useState<string | null>(null);
-  const [loadedModuleDescription, setLoadedModuleDescription] = useState<
-    string | null
-  >(null);
-  const [moduleListResolved, setModuleListResolved] = useState(
-    Boolean(navState?.moduleName?.trim()),
-  );
 
-  const moduleTitleFallback =
+  const moduleTitle =
     moduleId
       ?.split("-")
       .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
-      .join(" ") || "Module";
-
-  const displayModuleName =
-    navState?.moduleName?.trim() ||
-    loadedModuleName ||
-    moduleTitleFallback;
-
-  const hasNavName = Boolean(navState?.moduleName?.trim());
-
-  const displayModuleDescription = (() => {
-    if (hasNavName) {
-      return navState?.moduleDescription?.trim() || "—";
-    }
-    if (!moduleListResolved) {
-      return "Loading…";
-    }
-    if (loadedModuleDescription !== null) {
-      return loadedModuleDescription.trim() || "—";
-    }
-    return "—";
-  })();
-
-  useEffect(() => {
-    if (navState?.moduleName?.trim()) {
-      return;
-    }
-    const id = Number(moduleId);
-    const cid = Number(courseId);
-    if (!Number.isFinite(id) || id < 1 || !Number.isFinite(cid) || cid < 1) {
-      setModuleListResolved(true);
-      return;
-    }
-    let cancelled = false;
-    (async () => {
-      try {
-        const res = await getTopLevelCourseModules(cid, { limit: 100, offset: 0 });
-        if (cancelled) return;
-        const list = res.data?.data?.modules;
-        if (Array.isArray(list)) {
-          const m = list.find((mod) => mod.id === id);
-          if (m) {
-            setLoadedModuleName(m.name);
-            setLoadedModuleDescription(m.description ?? "");
-          } else {
-            setLoadedModuleName(null);
-            setLoadedModuleDescription("");
-          }
-        } else {
-          setLoadedModuleName(null);
-          setLoadedModuleDescription(null);
-        }
-      } catch {
-        if (!cancelled) {
-          setLoadedModuleName(null);
-          setLoadedModuleDescription(null);
-        }
-      } finally {
-        if (!cancelled) {
-          setModuleListResolved(true);
-        }
-      }
-    })();
-    return () => {
-      cancelled = true;
-    };
-  }, [navState?.moduleName, courseId, moduleId]);
-
-  const loadModuleLessons = useCallback(
-    async (options?: { showPageLoading?: boolean }) => {
-      const showPageLoading = options?.showPageLoading ?? true;
-      const mid = Number(moduleId);
-      if (!Number.isFinite(mid) || mid < 1) {
-        setLessons([]);
-        setLessonsLoadError(null);
-        setLessonsLoading(false);
-        return;
-      }
-      if (showPageLoading) {
-        setLessonsLoading(true);
-        setLessonsLoadError(null);
-      }
-      try {
-        const res = await getModuleLessons(mid, { limit: 100, offset: 0 });
-        const list = res.data?.data?.lessons;
-        if (Array.isArray(list)) {
-          setLessons(
-            [...list].sort(
-              (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-            ),
-          );
-        } else {
-          setLessons([]);
-        }
-        if (showPageLoading) {
-          setLessonsLoadError(null);
-        }
-      } catch {
-        if (showPageLoading) {
-          setLessons([]);
-          setLessonsLoadError("Failed to load lessons. Please try again.");
-        } else {
-          toast.error("Failed to refresh lessons");
-        }
-      } finally {
-        if (showPageLoading) {
-          setLessonsLoading(false);
-        }
-      }
-    },
-    [moduleId],
-  );
-
-  useEffect(() => {
-    void loadModuleLessons({ showPageLoading: true });
-  }, [loadModuleLessons]);
-
-  const openEditLesson = (lesson: TopLevelModuleLessonItem) => {
-    setEditingLesson(lesson);
-    setEditLessonTitle(lesson.title ?? "");
-    setEditLessonVideoUrl(lesson.video_url ?? "");
-    setEditLessonThumbnail(lesson.thumbnail ?? "");
-    setEditLessonDescription(lesson.description ?? "");
-  };
-
-  const closeEditLesson = () => {
-    if (savingLessonEdit || lessonMediaUploadBusy) return;
-    setEditingLesson(null);
-  };
-
-  const handleSaveLessonEdit = async () => {
-    if (!editingLesson) return;
-    const title = editLessonTitle.trim();
-    if (!title) {
-      toast.error("Title is required");
-      return;
-    }
-    setSavingLessonEdit(true);
-    try {
-      await updateTopLevelModuleLesson(editingLesson.id, {
-        title,
-        video_url: editLessonVideoUrl.trim(),
-        thumbnail: editLessonThumbnail.trim(),
-        description: editLessonDescription.trim(),
-      });
-      toast.success("Lesson updated");
-      setEditingLesson(null);
-      await loadModuleLessons({ showPageLoading: false });
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update lesson";
-      toast.error(msg);
-    } finally {
-      setSavingLessonEdit(false);
-    }
-  };
-
-  const handleConfirmDeleteLesson = async () => {
-    if (!deletingLesson) return;
-    setDeletingLessonInFlight(true);
-    try {
-      await deleteTopLevelModuleLesson(deletingLesson.id);
-      toast.success("Lesson deleted");
-      setDeletingLesson(null);
-      await loadModuleLessons({ showPageLoading: false });
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete lesson";
-      toast.error(msg);
-    } finally {
-      setDeletingLessonInFlight(false);
-    }
-  };
+      .join(" ") || "Business English Fundamentals";
 
   return (
     <div className="space-y-10 pt-10 pb-20 animate-in fade-in duration-500">
@@ -311,10 +110,12 @@ export function ModuleDetailPage() {
       <div className="flex flex-col md:flex-row md:items-start justify-between gap-6">
         <div className="">
           <h1 className="text-2xl font-medium text-grayScale-900 tracking-tight">
-            {displayModuleName}
+            Module 3: {moduleTitle}
           </h1>
           <p className="text-grayScale-500 text-[14px] max-w-2xl">
-            {displayModuleDescription}
+            This module covers essential vocabulary and phrases used in modern
+            business environments, including email etiquette and meeting
+            protocols.
           </p>
         </div>
         <div className="flex items-center gap-3">
@@ -341,7 +142,7 @@ export function ModuleDetailPage() {
             <div className="h-4 w-4 flex items-center justify-center">
               <span className="text-xl leading-none font-light">+</span>
             </div>
-            Add Lesson
+            Add Video
           </Button>
         </div>
       </div>
@@ -358,7 +159,7 @@ export function ModuleDetailPage() {
                 : "text-grayScale-400 hover:text-grayScale-600",
             )}
           >
-            Lesson
+            Video
           </button>
           <button
             onClick={() => setActiveTab("practice")}
@@ -377,27 +178,14 @@ export function ModuleDetailPage() {
       {/* Content */}
       <div className="mt-8">
         {activeTab === "video" ? (
-          lessonsLoading ? (
-            <div className="flex flex-col items-center justify-center py-24 text-grayScale-500 text-[15px] font-medium">
-              Loading lessons…
-            </div>
-          ) : lessonsLoadError ? (
-            <div className="rounded-2xl border border-amber-100 bg-amber-50/80 px-6 py-8 text-center text-sm text-amber-900 max-w-lg mx-auto">
-              {lessonsLoadError}
-            </div>
-          ) : lessons.length > 0 ? (
+          videos.length > 0 ? (
             <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
-              {lessons.map((lesson, i) => (
+              {videos.map((video) => (
                 <VideoCard
-                  key={lesson.id}
-                  id={lesson.id}
-                  title={lesson.title}
-                  videoUrl={lesson.video_url}
-                  hoverModuleActions
-                  thumbnailUrl={resolveThumbnailForPreview(lesson.thumbnail)}
-                  thumbnailGradient={LESSON_THUMB_GRADIENTS[i % LESSON_THUMB_GRADIENTS.length]}
-                  onEdit={() => openEditLesson(lesson)}
-                  onDelete={() => setDeletingLesson(lesson)}
+                  key={video.id}
+                  {...(video as any)}
+                  onEdit={() => console.log("Edit", video.id)}
+                  onPublish={() => console.log("Publish", video.id)}
                 />
               ))}
             </div>
@@ -409,11 +197,11 @@ export function ModuleDetailPage() {
                 </div>
               </div>
               <h2 className="text-2xl font-extrabold text-grayScale-900 mb-3">
-                No lessons in this module yet
+                No videos added to this module yet
               </h2>
               <p className="text-grayScale-400 font-medium text-[15px] text-center max-w-sm mb-10 leading-relaxed">
-                Lessons are a great way to engage students. Add your first
-                lesson to get started.
+                Videos are a great way to engage students. Start building your
+                module by adding your first video lesson now.
               </p>
               <Button
                 variant="outline"
@@ -425,7 +213,7 @@ export function ModuleDetailPage() {
                 }
               >
                 <Video className="h-5 w-5" />
-                Add Lesson
+                Add Video
               </Button>
             </div>
           )
@@ -463,149 +251,6 @@ export function ModuleDetailPage() {
           </div>
         )}
       </div>
-
-      <Dialog
-        open={editingLesson !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingLessonEdit || lessonMediaUploadBusy)) return;
-          if (!open) closeEditLesson();
-        }}
-      >
-        <DialogContent className="max-w-lg max-h-[90vh] overflow-y-auto">
-          <DialogHeader>
-            <DialogTitle>Edit lesson</DialogTitle>
-            <DialogDescription>
-              Update details. Video and thumbnail files use{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                POST /files/upload
-              </code>
-              ; the form is saved with{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                PUT /lessons/:id
-              </code>
-              .
-            </DialogDescription>
-          </DialogHeader>
-          <div className="grid gap-4 py-2">
-            <div className="space-y-2">
-              <label
-                className="text-sm font-medium text-grayScale-700"
-                htmlFor="edit-lesson-title"
-              >
-                Title
-              </label>
-              <Input
-                id="edit-lesson-title"
-                value={editLessonTitle}
-                onChange={(e) => setEditLessonTitle(e.target.value)}
-                disabled={savingLessonEdit}
-              />
-            </div>
-            <LessonMediaUploadField
-              kind="video"
-              value={editLessonVideoUrl}
-              onChange={setEditLessonVideoUrl}
-              disabled={savingLessonEdit}
-              onUploadBusyChange={setVideoUploadBusy}
-            />
-            <LessonMediaUploadField
-              kind="thumbnail"
-              value={editLessonThumbnail}
-              onChange={setEditLessonThumbnail}
-              disabled={savingLessonEdit}
-              onUploadBusyChange={setThumbUploadBusy}
-            />
-            <div className="space-y-2">
-              <label
-                className="text-sm font-medium text-grayScale-700"
-                htmlFor="edit-lesson-desc"
-              >
-                Description
-              </label>
-              <Textarea
-                id="edit-lesson-desc"
-                value={editLessonDescription}
-                onChange={(e) => setEditLessonDescription(e.target.value)}
-                rows={4}
-                disabled={savingLessonEdit}
-                className="min-h-[100px] resize-y"
-              />
-            </div>
-          </div>
-          <DialogFooter>
-            <Button
-              type="button"
-              variant="outline"
-              onClick={closeEditLesson}
-              disabled={savingLessonEdit || lessonMediaUploadBusy}
-            >
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              onClick={() => void handleSaveLessonEdit()}
-              disabled={savingLessonEdit || lessonMediaUploadBusy}
-            >
-              {savingLessonEdit ? "Saving…" : "Save changes"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
-
-      {deletingLesson && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-          <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-            <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-              <h2 className="text-lg font-bold text-grayScale-700">
-                Delete lesson
-              </h2>
-              <button
-                type="button"
-                onClick={() =>
-                  !deletingLessonInFlight && setDeletingLesson(null)
-                }
-                disabled={deletingLessonInFlight}
-                className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-              >
-                <X className="h-5 w-5" />
-              </button>
-            </div>
-
-            <div className="px-6 py-6">
-              <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                <Trash2 className="h-5 w-5 text-red-500" />
-              </div>
-              <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                Are you sure you want to delete{" "}
-                <span className="font-semibold text-grayScale-700">
-                  {deletingLesson.title}
-                </span>
-                ? This cannot be undone.
-              </p>
-            </div>
-
-            <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
-              <Button
-                type="button"
-                variant="outline"
-                onClick={() => setDeletingLesson(null)}
-                disabled={deletingLessonInFlight}
-                className="w-full sm:w-auto"
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                disabled={deletingLessonInFlight}
-                onClick={() => void handleConfirmDeleteLesson()}
-              >
-                {deletingLessonInFlight ? "Deleting…" : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </div>
-      )}
     </div>
   );
 }

src/pages/content-management/PracticeQuestionsPage.tsx

@@ -58,13 +58,7 @@ const typeColors: Record<QuestionType, string> = {
 }
 
 export function PracticeQuestionsPage() {
-  const { categoryId, courseId, subModuleId, levelId, practiceId } = useParams<{
-    categoryId: string
-    courseId: string
-    subModuleId?: string
-    levelId?: string
-    practiceId?: string
-  }>()
+  const { categoryId, courseId, subModuleId, practiceId } = useParams()
   const location = useLocation()
   
   const [questions, setQuestions] = useState<PracticeQuestion[]>([])
@@ -108,14 +102,11 @@ export function PracticeQuestionsPage() {
   const [saveError, setSaveError] = useState<string | null>(null)
 
   const backLink = useMemo(() => {
-    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/level/") && levelId) {
-      return "/content/human-language"
-    }
-    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/sub-module/") && subModuleId) {
+    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/sub-module/")) {
       return `/content/human-language/${categoryId}/${courseId}/sub-module/${subModuleId}`
     }
     return `/content/category/${categoryId}/courses/${courseId}/sub-modules/${subModuleId}`
-  }, [location.pathname, categoryId, courseId, subModuleId, levelId])
+  }, [location.pathname, categoryId, courseId, subModuleId])
 
   const buildDefaultOptions = (type: QuestionType, sampleAnswerText?: string): DraftOption[] => {
     if (type === "TRUE_FALSE") {

src/pages/content-management/ProgramDetailPage.tsx

@@ -1,4 +1,3 @@
-import { useCallback, useEffect, useRef, useState } from "react";
 import { Link, useParams, useNavigate } from "react-router-dom";
 import {
   ArrowLeft,
@@ -7,13 +6,11 @@ import {
   ClipboardList,
   ListChecks,
   ChevronRight,
-  Pencil,
-  Trash2,
   X,
+  Upload,
 } from "lucide-react";
 import { Button } from "../../components/ui/button";
 import { Card } from "../../components/ui/card";
-import { Textarea } from "../../components/ui/textarea";
 import {
   Dialog,
   DialogContent,
@@ -23,51 +20,12 @@ import {
   DialogClose,
 } from "../../components/ui/dialog";
 import { Input } from "../../components/ui/input";
-import { toast } from "sonner";
-import { ResolvedImage } from "../../components/media/ResolvedImage";
-import {
-  createExamPrepCatalogCourse,
-  getExamPrepCatalogCourses,
-  updateExamPrepCatalogCourse,
-  deleteExamPrepCatalogCourse,
-} from "../../api/courses.api";
-import { uploadImageFile } from "../../api/files.api";
+import { Select } from "../../components/ui/select";
 import uploadIcon from "../../assets/icons/upload.png";
 
 export function ProgramDetailPage() {
   const navigate = useNavigate();
   const { programType } = useParams<{ programType: string }>();
-  const [createOpen, setCreateOpen] = useState(false);
-  const [createName, setCreateName] = useState("");
-  const [createDescription, setCreateDescription] = useState("");
-  const [createThumbnail, setCreateThumbnail] = useState("");
-  const [createThumbnailFromUpload, setCreateThumbnailFromUpload] = useState(false);
-  const [creating, setCreating] = useState(false);
-  const [uploadingThumbnail, setUploadingThumbnail] = useState(false);
-  const createThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-  const [createdCourses, setCreatedCourses] = useState<
-    {
-      id: number;
-      name: string;
-      description: string;
-      thumbnail?: string | null;
-      sortOrder: number;
-      unitsCount: number;
-      modulesCount: number;
-      lessonsCount: number;
-    }[]
-  >([]);
-  const [catalogLoading, setCatalogLoading] = useState(false);
-  const [editingCourseId, setEditingCourseId] = useState<number | null>(null);
-  const [editName, setEditName] = useState("");
-  const [editDescription, setEditDescription] = useState("");
-  const [editThumbnail, setEditThumbnail] = useState("");
-  const [editSortOrder, setEditSortOrder] = useState("1");
-  const [savingEdit, setSavingEdit] = useState(false);
-  const [uploadingEditThumbnail, setUploadingEditThumbnail] = useState(false);
-  const editThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-  const [deletingCourseId, setDeletingCourseId] = useState<number | null>(null);
-  const [deletingCourse, setDeletingCourse] = useState(false);
 
   // Mock data for "proficiency" program type
   const programs: Record<string, any> = {
@@ -75,7 +33,45 @@ export function ProgramDetailPage() {
       title: "English Proficiency Exams",
       description:
         "Manage exam-based learning programs such as Duolingo and IELTS.",
-      courses: [],
+      courses: [
+        {
+          id: "duolingo",
+          name: "Duolingo English Test",
+          description:
+            "Adaptive exam-style practice for speaking, writing, reading, and listening.",
+          coursesCount: 6,
+          questionTypesCount: 13,
+          logo: (
+            <div className="h-14 w-14 rounded-full bg-[#FFB800] flex items-center justify-center relative overflow-hidden">
+              {/* Simple Duolingo-like representation if image not available */}
+              <div className="absolute inset-0 bg-gradient-to-br from-white/20 to-transparent" />
+              <div className="h-8 w-8 bg-white rounded-full flex items-center justify-center">
+                <div className="h-4 w-4 bg-[#FFB800] rounded-sm transform rotate-45" />
+              </div>
+            </div>
+          ),
+          buttonText: "Manage Detail",
+        },
+        {
+          id: "ielts",
+          name: "IELTS Academic",
+          description:
+            "Full preparation for IELTS speaking, writing, listening, and reading.",
+          coursesCount: 4,
+          questionTypesCount: 18,
+          logo: (
+            <div className="flex items-center gap-1">
+              <span className="text-[28px] font-black tracking-tighter text-[#E11D48] ">
+                IELTS
+              </span>
+              <span className="text-[8px] font-bold text-[#E11D48] mt-2 tracking-widest uppercase">
+                ™
+              </span>
+            </div>
+          ),
+          buttonText: "View Detail",
+        },
+      ],
     },
     "skill-based": {
       title: "Skill-Based Courses",
@@ -88,327 +84,6 @@ export function ProgramDetailPage() {
   const currentProgram =
     programs[programType || "proficiency"] || programs.proficiency;
 
-  const loadCatalogCourses = useCallback(async () => {
-    if (programType !== "proficiency") return;
-    setCatalogLoading(true);
-    try {
-      const response = await getExamPrepCatalogCourses({ limit: 20, offset: 0 });
-      const rows = response.data?.data?.catalog_courses;
-      const list = Array.isArray(rows) ? rows : [];
-      setCreatedCourses(
-        list.map((row) => ({
-          id: Number(row.id),
-          name: row.name?.trim() || `Course ${row.id}`,
-          description: row.description?.trim() || "—",
-          thumbnail: row.thumbnail?.trim() || null,
-          sortOrder: Number(row.sort_order ?? 0),
-          unitsCount: Number(row.units_count ?? 0),
-          modulesCount: Number(row.modules_count ?? 0),
-          lessonsCount: Number(row.lessons_count ?? 0),
-        })),
-      );
-    } catch (error) {
-      console.error(error);
-      toast.error("Failed to fetch catalog courses");
-      setCreatedCourses([]);
-    } finally {
-      setCatalogLoading(false);
-    }
-  }, [programType]);
-
-  useEffect(() => {
-    void loadCatalogCourses();
-  }, [loadCatalogCourses]);
-  const proficiencyCourses = [
-    ...currentProgram.courses,
-    ...createdCourses.map((course) => ({
-      id: course.id,
-      name: course.name,
-      description: course.description,
-      units_count: course.unitsCount,
-      modules_count: course.modulesCount,
-      lessons_count: course.lessonsCount,
-      logo: null,
-      thumbnail: course.thumbnail ?? "",
-      sort_order: course.sortOrder,
-      buttonText: "View Detail",
-    })),
-  ];
-
-  const isHttpUrl = (value: string) =>
-    value.startsWith("http://") || value.startsWith("https://");
-
-  const isMinioUrl = (value: string) => {
-    try {
-      const url = new URL(value);
-      return url.host === "s3.yimaruacademy.com";
-    } catch {
-      return false;
-    }
-  };
-
-  const autoUploadThumbnailUrlIfNeeded = async (rawValue: string) => {
-    const candidate = rawValue.trim();
-    if (!candidate) return;
-    if (!isHttpUrl(candidate)) return;
-    if (isMinioUrl(candidate)) return;
-    if (uploadingThumbnail || creating) return;
-
-    setUploadingThumbnail(true);
-    try {
-      const uploaded = await uploadImageFile(candidate);
-      const uploadedUrl = uploaded.data?.data?.url?.trim();
-      if (!uploadedUrl) {
-        throw new Error("Failed to upload thumbnail URL to MinIO");
-      }
-      setCreateThumbnail(uploadedUrl);
-      setCreateThumbnailFromUpload(true);
-      toast.success("Thumbnail URL uploaded to MinIO");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail URL";
-      toast.error(message);
-    } finally {
-      setUploadingThumbnail(false);
-    }
-  };
-
-  const resolveThumbnailToMinioUrl = async (rawValue: string) => {
-    const trimmed = rawValue.trim();
-    if (!trimmed) return "";
-    if (!isHttpUrl(trimmed) || isMinioUrl(trimmed)) return trimmed;
-    const uploaded = await uploadImageFile(trimmed);
-    const uploadedUrl = uploaded.data?.data?.url?.trim();
-    if (!uploadedUrl) {
-      throw new Error("Failed to upload thumbnail URL to MinIO");
-    }
-    return uploadedUrl;
-  };
-
-  const handleCreateCourse = async () => {
-    if (programType !== "proficiency") {
-      toast.error("Create Course is supported only for proficiency catalog.");
-      return;
-    }
-    const name = createName.trim();
-    if (!name) {
-      toast.error("Course name is required");
-      return;
-    }
-    setCreating(true);
-    try {
-      let thumbnailToSend: string | null = createThumbnail.trim() || null;
-      if (
-        thumbnailToSend &&
-        !createThumbnailFromUpload &&
-        isHttpUrl(thumbnailToSend) &&
-        !isMinioUrl(thumbnailToSend)
-      ) {
-        const uploaded = await uploadImageFile(thumbnailToSend);
-        const uploadedUrl = uploaded.data?.data?.url?.trim();
-        if (!uploadedUrl) {
-          throw new Error("Failed to upload thumbnail URL to MinIO");
-        }
-        thumbnailToSend = uploadedUrl;
-      }
-
-      const response = await createExamPrepCatalogCourse({
-        name,
-        description: createDescription.trim() || null,
-        thumbnail: thumbnailToSend,
-      });
-      const row = response.data?.data;
-      if (!row?.id) {
-        throw new Error("Missing created course payload");
-      }
-      setCreatedCourses((prev) => [
-        {
-          id: row.id,
-          name: row.name ?? name,
-          description: row.description?.trim() || createDescription.trim() || "—",
-          thumbnail: row.thumbnail?.trim() || null,
-          sortOrder: Number(row.sort_order ?? 0),
-          unitsCount: Number(row.units_count ?? 0),
-          modulesCount: Number(row.modules_count ?? 0),
-          lessonsCount: Number(row.lessons_count ?? 0),
-        },
-        ...prev,
-      ]);
-      await loadCatalogCourses();
-      toast.success("Course created");
-      setCreateName("");
-      setCreateDescription("");
-      setCreateThumbnail("");
-      setCreateThumbnailFromUpload(false);
-      setCreateOpen(false);
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create course";
-      toast.error(message);
-    } finally {
-      setCreating(false);
-    }
-  };
-
-  const openEditCourse = (course: (typeof proficiencyCourses)[number]) => {
-    const idNum = Number(course.id);
-    if (!Number.isFinite(idNum)) return;
-    setEditingCourseId(idNum);
-    setEditName(String(course.name ?? ""));
-    setEditDescription(String(course.description ?? ""));
-    setEditThumbnail(String(course.thumbnail ?? ""));
-    setEditSortOrder(String(course.sort_order ?? 1));
-  };
-
-  const closeEditCourse = () => {
-    if (savingEdit || uploadingEditThumbnail) return;
-    setEditingCourseId(null);
-    setEditName("");
-    setEditDescription("");
-    setEditThumbnail("");
-    setEditSortOrder("1");
-  };
-
-  const handleEditThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    setUploadingEditThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) throw new Error("Upload did not return a file URL");
-      setEditThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(message);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const handleSaveEditCourse = async () => {
-    if (!editingCourseId) return;
-    const name = editName.trim();
-    if (!name) {
-      toast.error("Course name is required");
-      return;
-    }
-    const sortOrderNum = Number(editSortOrder);
-    if (!Number.isFinite(sortOrderNum) || sortOrderNum < 0) {
-      toast.error("Sort order must be a valid number");
-      return;
-    }
-
-    setSavingEdit(true);
-    try {
-      const minioThumbnail = await resolveThumbnailToMinioUrl(editThumbnail);
-      const response = await updateExamPrepCatalogCourse(editingCourseId, {
-        name,
-        description: editDescription.trim() || null,
-        thumbnail: minioThumbnail || null,
-        sort_order: sortOrderNum,
-      });
-      const row = response.data?.data;
-      setCreatedCourses((prev) =>
-        prev.map((course) =>
-          course.id === editingCourseId
-            ? {
-                ...course,
-                name: row?.name ?? name,
-                description: row?.description?.trim() || editDescription.trim() || "—",
-                thumbnail: row?.thumbnail?.trim() || null,
-                sortOrder: Number(row?.sort_order ?? sortOrderNum),
-                unitsCount: Number(row?.units_count ?? course.unitsCount ?? 0),
-                modulesCount: Number(row?.modules_count ?? course.modulesCount ?? 0),
-                lessonsCount: Number(row?.lessons_count ?? course.lessonsCount ?? 0),
-              }
-            : course,
-        ),
-      );
-      await loadCatalogCourses();
-      toast.success("Course updated");
-      closeEditCourse();
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update course";
-      toast.error(message);
-    } finally {
-      setSavingEdit(false);
-    }
-  };
-
-  const handleDeleteCourse = async () => {
-    if (!deletingCourseId) return;
-    setDeletingCourse(true);
-    try {
-      await deleteExamPrepCatalogCourse(deletingCourseId);
-      await loadCatalogCourses();
-      toast.success("Course deleted");
-      setDeletingCourseId(null);
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete course";
-      toast.error(message);
-    } finally {
-      setDeletingCourse(false);
-    }
-  };
-
-  const handleCreateCourseThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setUploadingThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setCreateThumbnail(url);
-      setCreateThumbnailFromUpload(true);
-      toast.success("Thumbnail uploaded");
-    } catch (error: unknown) {
-      console.error(error);
-      const message =
-        (error as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(message);
-    } finally {
-      setUploadingThumbnail(false);
-    }
-  };
-
   return (
     <div className="space-y-8 animate-in fade-in duration-500 pb-10">
       {/* Navigation */}
@@ -432,136 +107,84 @@ export function ProgramDetailPage() {
         </div>
 
         <div className="flex items-center gap-3 pt-2">
-          <Dialog
-            open={createOpen}
-            onOpenChange={(open) => {
-              if (!open && (creating || uploadingThumbnail)) return;
-              setCreateOpen(open);
-            }}
-          >
+          <Dialog>
             <DialogTrigger asChild>
               <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white transition-all flex items-center gap-2">
                 <Plus className="h-5 w-5" />
                 Create Course
               </Button>
             </DialogTrigger>
-            <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-[600px] flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0">
-              <div className="flex min-h-0 flex-1 flex-col bg-white">
-                <DialogHeader className="shrink-0 border-b border-grayScale-200 px-8 py-6 flex flex-row items-center justify-between">
+            <DialogContent className="max-w-[600px] p-0 border-none rounded-[16px] overflow-hidden">
+              <div className="bg-white">
+                <DialogHeader className="px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
                   <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
                     Create Course
                   </DialogTitle>
                 </DialogHeader>
 
-                <div className="min-h-0 flex-1 space-y-8 overflow-y-auto p-8">
+                <div className="p-8 space-y-8">
                   <div className="space-y-3">
                     <label className="text-[15px] text-grayScale-800">
                       Name
                     </label>
                     <Input
-                      value={createName}
-                      onChange={(e) => setCreateName(e.target.value)}
                       placeholder="e.g. TOEFL, IELTS"
                       className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                      disabled={creating}
                     />
                   </div>
 
                   <div className="space-y-3">
                     <label className="text-[15px] text-grayScale-800">
-                      Description
+                      Course Order
                     </label>
-                    <Textarea
-                      value={createDescription}
-                      onChange={(e) => setCreateDescription(e.target.value)}
-                      placeholder="Optional description"
-                      rows={4}
-                      className="min-h-[96px] rounded-[8px] border-grayScale-400"
-                      disabled={creating}
-                    />
+                    <Select defaultValue="1">
+                      <option value="1">1</option>
+                      <option value="2">2</option>
+                      <option value="3">3</option>
+                    </Select>
                   </div>
 
+                  {/* Thumbnail Field */}
                   <div className="space-y-3">
                     <label className="text-[15px] text-grayScale-800">
                       Thumbnail
                     </label>
-                    <input
-                      ref={createThumbnailFileInputRef}
-                      type="file"
-                      accept="image/*"
-                      className="sr-only"
-                      onChange={(e) => void handleCreateCourseThumbnailFile(e)}
-                      disabled={creating || uploadingThumbnail}
-                    />
-                    <button
-                      type="button"
-                      className="relative w-full cursor-pointer rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white px-10 py-8 text-left transition-all hover:border-brand-300 disabled:cursor-not-allowed disabled:opacity-60"
-                      disabled={creating || uploadingThumbnail}
-                      onClick={() => createThumbnailFileInputRef.current?.click()}
-                    >
-                      <div className="flex flex-col items-center justify-center">
+                    <div className="relative group cursor-pointer">
+                      <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all ">
                         <div className="mb-4">
-                          <img src={uploadIcon} alt="" className="h-10 w-10" />
+                          <img
+                            src={uploadIcon}
+                            alt="Upload icon"
+                            className="h-10 w-10"
+                          />
                         </div>
                         <p className="text-[15px]">
-                          <span className="font-bold text-brand-500">
-                            {uploadingThumbnail ? "Uploading…" : "Click to upload"}
+                          <span className="text-brand-500 font-bold hover:underline">
+                            Click to upload
                           </span>{" "}
-                          <span className="text-grayScale-500">or paste a URL below</span>
+                          <span className="text-grayScale-500">
+                            or drag and drop
+                          </span>
                         </p>
-                        <p className="mt-1.5 text-[12px] uppercase tracking-widest text-grayScale-400">
-                          JPG, PNG (MAX 5 MB)
+                        <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
+                          JPG, PNG (MAX 1 MB)
                         </p>
                       </div>
-                    </button>
-                    {createThumbnail.trim() ? (
-                      <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                        <ResolvedImage
-                          src={createThumbnail.trim()}
-                          alt=""
-                          className="h-28 w-full object-cover"
-                        />
-                      </div>
-                    ) : null}
-                    <Input
-                      value={createThumbnail}
-                      onChange={(e) => {
-                        setCreateThumbnail(e.target.value);
-                        setCreateThumbnailFromUpload(false);
-                      }}
-                      onBlur={(e) => {
-                        void autoUploadThumbnailUrlIfNeeded(e.target.value);
-                      }}
-                      onPaste={(e) => {
-                        const pasted = e.clipboardData.getData("text");
-                        if (!pasted) return;
-                        setCreateThumbnail(pasted);
-                        setCreateThumbnailFromUpload(false);
-                        void autoUploadThumbnailUrlIfNeeded(pasted);
-                      }}
-                      placeholder="Optional thumbnail URL (or leave empty for null)"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                      disabled={creating || uploadingThumbnail}
-                    />
+                    </div>
                   </div>
                 </div>
 
-                <div className="shrink-0 px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
+                <div className="px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
                   <DialogClose asChild>
                     <Button
                       variant="outline"
                       className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                      disabled={creating || uploadingThumbnail}
                     >
                       Cancel
                     </Button>
                   </DialogClose>
-                  <Button
-                    className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600"
-                    disabled={creating || uploadingThumbnail}
-                    onClick={() => void handleCreateCourse()}
-                  >
-                    {creating ? "Creating..." : "Create Course"}
+                  <Button className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600">
+                    Create Program
                   </Button>
                 </div>
               </div>
@@ -598,70 +221,13 @@ export function ProgramDetailPage() {
 
       {/* Cards Grid */}
       <div className="flex flex-wrap gap-8 mt-10">
-        {programType === "proficiency" && catalogLoading ? (
-          <p className="text-sm text-grayScale-500">Loading catalog courses...</p>
-        ) : null}
-        {(programType === "proficiency"
-          ? proficiencyCourses
-          : currentProgram.courses
-        ).length === 0 && !catalogLoading ? (
-          <div className="w-full rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-            <p className="text-sm font-medium text-grayScale-600">
-              No catalog courses yet
-            </p>
-            <p className="mt-1 text-sm text-grayScale-400">
-              Create your first exam-prep catalog course to start organizing units, modules, and lessons.
-            </p>
-          </div>
-        ) : (
-          (programType === "proficiency"
-            ? proficiencyCourses
-            : currentProgram.courses
-          ).map((course: any) => (
-            <Card
-              key={course.id}
-              className="group relative bg-white w-[500px] rounded-[20px] border border-grayScale-100 p-6 flex flex-col items-start shadow-sm hover:shadow-md transition-shadow"
-            >
-            {programType === "proficiency" ? (
-              <div className="absolute right-3 top-3 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto">
-                <Button
-                  type="button"
-                  variant="secondary"
-                  size="icon"
-                  className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                  onClick={() => openEditCourse(course)}
-                  aria-label={`Edit ${course.name}`}
-                >
-                  <Pencil className="h-3.5 w-3.5" />
-                </Button>
-                <Button
-                  type="button"
-                  variant="secondary"
-                  size="icon"
-                  className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                  onClick={() => setDeletingCourseId(Number(course.id))}
-                  aria-label={`Delete ${course.name}`}
-                >
-                  <Trash2 className="h-3.5 w-3.5" />
-                </Button>
-              </div>
-            ) : null}
+        {currentProgram.courses.map((course: any) => (
+          <Card
+            key={course.id}
+            className="bg-white w-[500px] rounded-[20px] border border-grayScale-100 p-6 flex flex-col items-start  shadow-sm hover:shadow-md transition-shadow"
+          >
             {/* Logo */}
-            <div className="h-16 flex items-center">
-              {course.thumbnail ? (
-                <ResolvedImage
-                  src={course.thumbnail}
-                  alt={course.name}
-                  className="h-14 w-14 rounded-full object-cover"
-                />
-              ) : course.logo ? (
-                course.logo
-              ) : (
-                <div className="h-14 w-14 rounded-full bg-brand-50 text-brand-600 grid place-items-center text-xs font-bold">
-                  {String(course.name ?? "C").slice(0, 2).toUpperCase()}
-                </div>
-              )}
-            </div>
+            <div className="h-16 flex items-center">{course.logo}</div>
 
             {/* Content */}
             <div className="space-y-4 pt-2 flex-1">
@@ -678,19 +244,13 @@ export function ProgramDetailPage() {
               <div className="h-10 px-4 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-700">
                 <ClipboardList className="h-3 w-3 text-grayScale-400" />
                 <span className="text-[12px] ">
-                  {Number(course.units_count ?? 0)} Units
+                  {course.coursesCount} Courses
                 </span>
               </div>
               <div className="h-10 px-4 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-700">
                 <ListChecks className="h-3 w-3 text-grayScale-400" />
                 <span className="text-[12px] ">
-                  {Number(course.modules_count ?? 0)} Modules
-                </span>
-              </div>
-              <div className="h-10 px-4 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-700">
-                <ListChecks className="h-3 w-3 text-grayScale-400" />
-                <span className="text-[12px] ">
-                  {Number(course.lessons_count ?? 0)} Lessons
+                  {course.questionTypesCount} Question Types
                 </span>
               </div>
             </div>
@@ -705,166 +265,9 @@ export function ProgramDetailPage() {
               {course.buttonText}
               <ChevronRight className="h-5 w-5 transition-transform group-hover/btn:translate-x-1" />
             </Button>
-            </Card>
-          ))
-        )}
+          </Card>
+        ))}
       </div>
-
-      <Dialog
-        open={editingCourseId !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingEdit || uploadingEditThumbnail)) return;
-          if (!open) closeEditCourse();
-        }}
-      >
-        <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-[600px] flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0">
-          <div className="flex min-h-0 flex-1 flex-col bg-white">
-            <DialogHeader className="shrink-0 border-b border-grayScale-200 px-8 py-6 flex flex-row items-center justify-between">
-              <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                Edit Course
-              </DialogTitle>
-            </DialogHeader>
-            <div className="min-h-0 flex-1 space-y-8 overflow-y-auto p-8">
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Name</label>
-                <Input
-                  value={editName}
-                  onChange={(e) => setEditName(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Description</label>
-                <Textarea
-                  value={editDescription}
-                  onChange={(e) => setEditDescription(e.target.value)}
-                  rows={4}
-                  className="min-h-[96px] rounded-[8px] border-grayScale-400"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Sort Order</label>
-                <Input
-                  type="number"
-                  min={0}
-                  value={editSortOrder}
-                  onChange={(e) => setEditSortOrder(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-
-              <div className="space-y-3">
-                <label className="text-[15px] text-grayScale-800">Thumbnail</label>
-                <input
-                  ref={editThumbnailFileInputRef}
-                  type="file"
-                  accept="image/*"
-                  className="sr-only"
-                  onChange={(e) => void handleEditThumbnailFile(e)}
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-                <button
-                  type="button"
-                  className="relative w-full cursor-pointer rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white px-10 py-8 text-left transition-all hover:border-brand-300 disabled:cursor-not-allowed disabled:opacity-60"
-                  onClick={() => editThumbnailFileInputRef.current?.click()}
-                  disabled={savingEdit || uploadingEditThumbnail}
-                >
-                  <div className="flex flex-col items-center justify-center">
-                    <div className="mb-4">
-                      <img src={uploadIcon} alt="" className="h-10 w-10" />
-                    </div>
-                    <p className="text-[15px]">
-                      <span className="font-bold text-brand-500">
-                        {uploadingEditThumbnail ? "Uploading…" : "Click to upload"}
-                      </span>{" "}
-                      <span className="text-grayScale-500">or paste a URL below</span>
-                    </p>
-                    <p className="mt-1.5 text-[12px] uppercase tracking-widest text-grayScale-400">
-                      JPG, PNG (MAX 5 MB)
-                    </p>
-                  </div>
-                </button>
-                {editThumbnail.trim() ? (
-                  <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                    <ResolvedImage
-                      src={editThumbnail.trim()}
-                      alt=""
-                      className="h-28 w-full object-cover"
-                    />
-                  </div>
-                ) : null}
-                <Input
-                  value={editThumbnail}
-                  onChange={(e) => setEditThumbnail(e.target.value)}
-                  className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                  placeholder="https://..."
-                  disabled={savingEdit || uploadingEditThumbnail}
-                />
-              </div>
-            </div>
-            <div className="shrink-0 px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
-              <Button
-                type="button"
-                variant="outline"
-                className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                onClick={closeEditCourse}
-                disabled={savingEdit || uploadingEditThumbnail}
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600"
-                onClick={() => void handleSaveEditCourse()}
-                disabled={savingEdit || uploadingEditThumbnail}
-              >
-                {savingEdit ? "Saving..." : "Save Changes"}
-              </Button>
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
-
-      <Dialog
-        open={deletingCourseId !== null}
-        onOpenChange={(open) => {
-          if (!open && !deletingCourse) setDeletingCourseId(null);
-        }}
-      >
-        <DialogContent className="max-w-md rounded-[16px] border-none p-0 overflow-hidden">
-          <div className="bg-white">
-            <DialogHeader className="border-b border-grayScale-100 px-6 py-5">
-              <DialogTitle className="text-lg font-bold text-grayScale-900">
-                Delete Course
-              </DialogTitle>
-            </DialogHeader>
-            <div className="px-6 py-6 text-sm text-grayScale-600">
-              Are you sure you want to delete this course? This action cannot be undone.
-            </div>
-            <div className="flex justify-end gap-3 border-t border-grayScale-100 px-6 py-4">
-              <Button
-                variant="outline"
-                onClick={() => setDeletingCourseId(null)}
-                disabled={deletingCourse}
-              >
-                Cancel
-              </Button>
-              <Button
-                className="bg-red-500 hover:bg-red-600"
-                onClick={() => void handleDeleteCourse()}
-                disabled={deletingCourse}
-              >
-                {deletingCourse ? "Deleting..." : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </DialogContent>
-      </Dialog>
     </div>
   );
 }

src/pages/content-management/SpeakingPage.tsx

@@ -1,5 +1,5 @@
 import { type ChangeEvent, useCallback, useEffect, useMemo, useRef, useState } from "react"
-import { ArrowLeft, ChevronDown, ChevronRight, Image as ImageIcon, Mic, Plus, Trash2, Upload } from "lucide-react"
+import { ArrowLeft, ChevronDown, ChevronRight, Image as ImageIcon, Loader2, Mic, Plus, Trash2, Upload } from "lucide-react"
 import { Card, CardContent, CardHeader, CardTitle } from "../../components/ui/card"
 import { Button } from "../../components/ui/button"
 import { Input } from "../../components/ui/input"
@@ -1926,7 +1926,7 @@ export function SpeakingPage() {
                           className="gap-1.5"
                         >
                           {uploadingIntroVideo ? (
-                            <SpinnerIcon className="h-4 w-4" alt="" />
+                            <Loader2 className="h-4 w-4 animate-spin" />
                           ) : (
                             <Upload className="h-4 w-4" />
                           )}

src/pages/content-management/SubCategoryCoursesPage.tsx

@@ -1,143 +0,0 @@
-import { useEffect, useState } from "react"
-import { Link, useNavigate, useParams } from "react-router-dom"
-import { ArrowLeft, BookOpen, ChevronRight } from "lucide-react"
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg"
-import alertSrc from "../../assets/Alert.svg"
-import { Badge } from "../../components/ui/badge"
-import { getCoursesBySubCategoryId, getSubCategoriesByCategoryId } from "../../api/courses.api"
-import type { CategorySubCategoryListItem, SubCategoryCourseListItem } from "../../types/course.types"
-import { cn } from "../../lib/utils"
-
-export function SubCategoryCoursesPage() {
-  const { categoryId, subCategoryId } = useParams<{
-    categoryId: string
-    subCategoryId: string
-  }>()
-  const navigate = useNavigate()
-
-  const [subCategory, setSubCategory] = useState<CategorySubCategoryListItem | null>(null)
-  const [courses, setCourses] = useState<SubCategoryCourseListItem[]>([])
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-
-  useEffect(() => {
-    const run = async () => {
-      if (!categoryId || !subCategoryId) return
-      const cid = Number(categoryId)
-      const sid = Number(subCategoryId)
-      if (!Number.isFinite(cid) || !Number.isFinite(sid)) {
-        setError("Invalid route parameters")
-        setLoading(false)
-        return
-      }
-
-      setLoading(true)
-      setError(null)
-      try {
-        const [subRes, coursesRes] = await Promise.all([
-          getSubCategoriesByCategoryId(cid),
-          getCoursesBySubCategoryId(sid),
-        ])
-        const list = subRes.data?.data?.sub_categories ?? []
-        const found = Array.isArray(list) ? list.find((s) => s.id === sid) : undefined
-        setSubCategory(found ?? null)
-
-        const raw = coursesRes.data?.data?.courses
-        setCourses(Array.isArray(raw) ? raw : [])
-      } catch (e) {
-        console.error(e)
-        setError("Failed to load courses for this sub-category")
-        setCourses([])
-      } finally {
-        setLoading(false)
-      }
-    }
-    void run()
-  }, [categoryId, subCategoryId])
-
-  if (loading) {
-    return (
-      <div className="flex flex-col items-center justify-center py-32">
-        <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
-      </div>
-    )
-  }
-
-  if (error) {
-    return (
-      <div className="flex items-center justify-center py-32">
-        <div className="mx-4 flex w-full max-w-md items-center gap-3 rounded-2xl border border-red-100 bg-red-50 px-6 py-5 shadow-sm">
-          <img src={alertSrc} alt="" className="h-10 w-10 shrink-0" />
-          <p className="text-sm font-medium text-red-600">{error}</p>
-        </div>
-      </div>
-    )
-  }
-
-  const label = subCategory?.name ?? "Sub-category"
-
-  return (
-    <div className="space-y-6">
-      <div className="rounded-2xl border border-grayScale-100 bg-white px-5 py-4 shadow-sm sm:px-6 sm:py-5">
-        <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
-          <div className="flex items-start gap-3.5">
-            <Link
-              to={`/content/category/${categoryId}/courses`}
-              className="mt-0.5 grid h-9 w-9 shrink-0 place-items-center rounded-xl bg-grayScale-50 text-grayScale-500 transition-colors hover:bg-brand-50 hover:text-brand-600"
-            >
-              <ArrowLeft className="h-4 w-4" />
-            </Link>
-            <div>
-              <p className="text-xs font-medium text-grayScale-400">Sub-category</p>
-              <h1 className="text-xl font-bold text-grayScale-700 sm:text-2xl">{label}</h1>
-              <p className="mt-0.5 text-sm text-grayScale-400">
-                {courses.length} course{courses.length !== 1 ? "s" : ""} — open a course to manage sub-modules
-              </p>
-            </div>
-          </div>
-        </div>
-      </div>
-
-      {courses.length === 0 ? (
-        <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-          <p className="text-sm font-medium text-grayScale-600">No courses in this sub-category yet</p>
-          <p className="mt-1 text-sm text-grayScale-400">Add a course from your authoring flow or API.</p>
-        </div>
-      ) : (
-        <div className="space-y-3">
-          {courses.map((c) => (
-            <button
-              key={c.id}
-              type="button"
-              onClick={() =>
-                navigate(`/content/category/${categoryId}/courses/${c.id}/sub-modules`)
-              }
-              className={cn(
-                "flex w-full items-center justify-between gap-4 rounded-xl border border-grayScale-200 bg-white px-4 py-4 text-left shadow-sm transition-all",
-                "hover:border-brand-200 hover:bg-brand-50/40 hover:shadow-md",
-              )}
-            >
-              <div className="flex min-w-0 items-center gap-3">
-                <div className="grid h-10 w-10 shrink-0 place-items-center rounded-lg bg-grayScale-50 text-grayScale-400">
-                  <BookOpen className="h-5 w-5" />
-                </div>
-                <div className="min-w-0">
-                  <p className="font-semibold text-grayScale-800">{c.title}</p>
-                  {c.description?.trim() ? (
-                    <p className="mt-0.5 line-clamp-2 text-sm text-grayScale-500">{c.description}</p>
-                  ) : null}
-                </div>
-              </div>
-              <div className="flex shrink-0 items-center gap-3">
-                <Badge variant={c.is_active ? "success" : "secondary"} className="text-[11px]">
-                  {c.is_active ? "Active" : "Inactive"}
-                </Badge>
-                <ChevronRight className="h-5 w-5 text-grayScale-300" />
-              </div>
-            </button>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}

src/pages/content-management/SubCourseContentPage.tsx

@@ -103,10 +103,9 @@ export function SubModuleContentPage() {
 
       try {
         const subCoursesRes = await getSubModulesByCourse(Number(courseId))
-        const list = subCoursesRes.data?.data?.sub_courses
-        const foundSubCourse = Array.isArray(list)
-          ? list.find((sc) => sc.id === Number(subModuleId))
-          : undefined
+        const foundSubCourse = subCoursesRes.data.data.sub_courses?.find(
+          (sc) => sc.id === Number(subModuleId)
+        )
         setSubCourse(foundSubCourse ?? null)
       } catch (err) {
         console.error("Failed to fetch course data:", err)
@@ -124,9 +123,7 @@ export function SubModuleContentPage() {
     setPracticesLoading(true)
     try {
       const res = await getQuestionSetsByOwner("SUB_MODULE", Number(subModuleId))
-      const raw = res.data?.data
-      const list = Array.isArray(raw) ? raw : (raw as { question_sets?: QuestionSet[] })?.question_sets ?? []
-      setPractices(Array.isArray(list) ? list : [])
+      setPractices(res.data.data ?? [])
     } catch (err) {
       console.error("Failed to fetch practices:", err)
     } finally {
@@ -139,8 +136,7 @@ export function SubModuleContentPage() {
     setVideosLoading(true)
     try {
       const res = await getVideosBySubModule(Number(subModuleId))
-      const vids = res.data?.data?.videos ?? []
-      setVideos(Array.isArray(vids) ? vids : [])
+      setVideos(res.data.data.videos ?? [])
     } catch (err) {
       console.error("Failed to fetch videos:", err)
     } finally {
@@ -158,7 +154,7 @@ export function SubModuleContentPage() {
         limit: ratingsPageSize,
         offset,
       })
-      setRatings(res.data?.data ?? [])
+      setRatings(res.data.data ?? [])
     } catch (err) {
       console.error("Failed to fetch ratings:", err)
     } finally {
@@ -409,8 +405,8 @@ export function SubModuleContentPage() {
       const idMatch = video.video_url?.match(/(\d{5,})/)
       const vimeoId = idMatch?.[1] ?? "76979871" // fallback to Big Buck Bunny
       const res = await getVimeoSample(vimeoId)
-      setPreviewIframe(res.data?.data?.iframe ?? "")
-      setPreviewVideo(res.data?.data?.video ?? null)
+      setPreviewIframe(res.data.data.iframe)
+      setPreviewVideo(res.data.data.video)
     } catch {
       setPreviewIframe("")
     } finally {
@@ -418,7 +414,7 @@ export function SubModuleContentPage() {
     }
   }
 
-  const filteredPractices = (Array.isArray(practices) ? practices : []).filter((practice) => {
+  const filteredPractices = practices.filter((practice) => {
     if (statusFilter === "all") return true
     if (statusFilter === "published") return practice.status === "PUBLISHED"
     if (statusFilter === "draft") return practice.status === "DRAFT"
@@ -444,19 +440,6 @@ export function SubModuleContentPage() {
     )
   }
 
-  if (!subCourse) {
-    return (
-      <div className="flex flex-col items-center justify-center py-20">
-        <img src={alertSrc} alt="" className="h-12 w-12" />
-        <p className="mt-3 text-sm font-medium text-grayScale-600">Sub-module not found</p>
-        <p className="mt-1 text-sm text-grayScale-400">It may have been removed or the link is invalid.</p>
-        <Button className="mt-6" variant="outline" asChild>
-          <Link to={`/content/category/${categoryId}/courses/${courseId}/sub-modules`}>Back to sub-modules</Link>
-        </Button>
-      </div>
-    )
-  }
-
   return (
     <div className="space-y-6">
       {/* Back Button */}
@@ -607,7 +590,7 @@ export function SubModuleContentPage() {
                       <div className="flex items-center gap-3 text-xs text-grayScale-400">
                         <div className="flex items-center gap-1.5">
                           <Layers className="h-3.5 w-3.5" />
-                          <span>{String(practice.owner_type ?? "SUB_MODULE").replace(/_/g, " ")}</span>
+                          <span>{practice.owner_type.replace("_", " ")}</span>
                         </div>
                         {practice.shuffle_questions && (
                           <span className="rounded-full bg-amber-50 px-2 py-0.5 text-[11px] font-medium text-amber-600 ring-1 ring-inset ring-amber-200">Shuffle ON</span>
@@ -616,13 +599,11 @@ export function SubModuleContentPage() {
 
                       <div className="mt-auto flex items-center justify-between border-t border-grayScale-100 pt-3">
                         <span className="text-xs font-medium text-grayScale-400">
-                          {practice.created_at
-                            ? new Date(practice.created_at).toLocaleDateString("en-US", {
-                                month: "short",
-                                day: "numeric",
-                                year: "numeric",
-                              })
-                            : "—"}
+                          {new Date(practice.created_at).toLocaleDateString("en-US", {
+                            month: "short",
+                            day: "numeric",
+                            year: "numeric",
+                          })}
                         </span>
                         <div className="flex gap-0.5" onClick={(e) => e.stopPropagation()}>
                           <button

src/pages/content-management/components/AddModuleModal.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState, type FormEvent } from "react";
+import { X } from "lucide-react";
 import { Button } from "../../../components/ui/button";
 import {
   Dialog,
@@ -9,137 +9,51 @@ import {
   DialogClose,
 } from "../../../components/ui/dialog";
 import { Input } from "../../../components/ui/input";
-import { Textarea } from "../../../components/ui/textarea";
-import { toast } from "sonner";
-import { createTopLevelCourseModule } from "../../../api/courses.api";
-import { ModuleIconUploadField } from "./ModuleIconUploadField";
+import { Select } from "../../../components/ui/select";
+import uploadIcon from "../../../assets/icons/upload.png";
 
 interface AddModuleModalProps {
   isOpen: boolean;
   onClose: () => void;
-  courseId: number;
-  onCreated?: () => void | Promise<void>;
 }
 
-export function AddModuleModal({
-  isOpen,
-  onClose,
-  courseId,
-  onCreated,
-}: AddModuleModalProps) {
-  const [name, setName] = useState("");
-  const [description, setDescription] = useState("");
-  const [icon, setIcon] = useState("");
-  const [submitting, setSubmitting] = useState(false);
-  const [iconUploadBusy, setIconUploadBusy] = useState(false);
-
-  useEffect(() => {
-    if (isOpen) {
-      setName("");
-      setDescription("");
-      setIcon("");
-      setSubmitting(false);
-      setIconUploadBusy(false);
-    }
-  }, [isOpen]);
-
-  const resetAndClose = () => {
-    setName("");
-    setDescription("");
-    setIcon("");
-    setIconUploadBusy(false);
-    onClose();
-  };
-
-  const handleOpenChange = (open: boolean) => {
-    if (!open && (submitting || iconUploadBusy)) return;
-    if (!open) {
-      resetAndClose();
-    }
-  };
-
-  const handleSubmit = async (e: FormEvent) => {
-    e.preventDefault();
-    const trimmedName = name.trim();
-    if (!trimmedName) {
-      toast.error("Module name is required");
-      return;
-    }
-    if (!Number.isFinite(courseId) || courseId < 1) {
-      toast.error("Invalid course");
-      return;
-    }
-    setSubmitting(true);
-    try {
-      await createTopLevelCourseModule(courseId, {
-        name: trimmedName,
-        description: description.trim(),
-        icon: icon.trim(),
-      });
-      toast.success("Module created");
-      if (onCreated) {
-        await onCreated();
-      }
-      resetAndClose();
-    } catch (err: unknown) {
-      console.error(err);
-      const msg =
-        (err as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create module";
-      toast.error(msg);
-    } finally {
-      setSubmitting(false);
-    }
-  };
-
+export function AddModuleModal({ isOpen, onClose }: AddModuleModalProps) {
   return (
-    <Dialog open={isOpen} onOpenChange={handleOpenChange}>
-      <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-2xl flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0 shadow-2xl">
-        <div className="flex-shrink-0">
-          <DialogHeader className="relative p-8 pb-4">
-            <DialogTitle className="text-2xl font-bold text-grayScale-700">
-              Add New Module
-            </DialogTitle>
-            <DialogDescription className="text-sm text-grayScale-400">
-              Create a module with{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                POST /courses/:courseId/modules
-              </code>
-              .
-            </DialogDescription>
-          </DialogHeader>
+    <Dialog open={isOpen} onOpenChange={onClose}>
+      <DialogContent className="max-w-2xl gap-0 border-none p-0 overflow-hidden rounded-[16px] shadow-2xl">
+        <DialogHeader className="p-8 pb-4 relative">
+          <DialogTitle className="text-2xl font-bold text-grayScale-700">
+            Add New Module
+          </DialogTitle>
+          <DialogDescription className="text-sm text-grayScale-400">
+            Create a module to organize videos and practices.
+          </DialogDescription>
+        </DialogHeader>
 
-          <div className="relative">
+        {/* Gradient Divider */}
+        <div className="relative">
+          <div
+            className="absolute inset-0 flex items-center"
+            aria-hidden="true"
+          >
+            <div className="w-full border-t border-grayScale-100" />
+          </div>
+          <div className="relative flex justify-center">
             <div
-              className="absolute inset-0 flex items-center"
-              aria-hidden="true"
-            >
-              <div className="w-full border-t border-grayScale-100" />
-            </div>
-            <div className="relative flex justify-center">
-              <div
-                className="h-[0.5px] w-full opacity-20"
-                style={{ background: "gray" }}
-              />
-            </div>
+              className="h-[0.5px] w-full opacity-20"
+              style={{ background: "gray" }}
+            />
           </div>
         </div>
 
-        <form
-          className="min-h-0 flex-1 space-y-6 overflow-y-auto overscroll-contain p-8 pt-4"
-          onSubmit={(e) => void handleSubmit(e)}
-        >
+        <form className="space-y-6 p-8 pt-4">
           <div className="space-y-2">
             <label className="text-[15px] font-medium text-grayScale-700">
-              Module title
+              Module Title
             </label>
             <Input
-              value={name}
-              onChange={(e) => setName(e.target.value)}
-              placeholder="e.g. Greetings & Introductions"
+              placeholder="e.g. Daily Introductions"
               className="h-12 rounded-xl"
-              disabled={submitting}
-              required
             />
           </div>
 
@@ -147,40 +61,63 @@ export function AddModuleModal({
             <label className="text-[15px] font-medium text-grayScale-700">
               Description
             </label>
-            <Textarea
-              value={description}
-              onChange={(e) => setDescription(e.target.value)}
-              placeholder="Learn to introduce yourself and talk about your life."
-              className="min-h-[88px] resize-y rounded-xl"
-              disabled={submitting}
-              rows={3}
+            <Input
+              placeholder="Short description of this module"
+              className="h-12 rounded-xl"
             />
           </div>
 
-          <ModuleIconUploadField
-            value={icon}
-            onChange={setIcon}
-            disabled={submitting}
-            onUploadBusyChange={setIconUploadBusy}
-          />
+          <div className="space-y-2">
+            <label className="text-[15px] font-medium text-grayScale-700">
+              Module Order
+            </label>
+            <Select className="h-12 rounded-xl">
+              <option value="1">1</option>
+              <option value="2">2</option>
+              <option value="3">3</option>
+            </Select>
+          </div>
+
+          <div className="space-y-2">
+            <label className="text-[15px] font-medium text-grayScale-700">
+              Icon
+            </label>
+            <div className="relative group cursor-pointer">
+              <div className="flex flex-col items-center justify-center rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 transition-all">
+                <div className="mb-4">
+                  <img
+                    src={uploadIcon}
+                    alt="Upload icon"
+                    className="h-10 w-10"
+                  />
+                </div>
+                <p className="text-sm">
+                  <span className="font-bold text-[#9E2891]">
+                    Click to upload
+                  </span>{" "}
+                  <span className="text-grayScale-500">or drag and drop</span>
+                </p>
+                <p className="mt-1 text-xs font-medium text-grayScale-400 uppercase tracking-wider">
+                  JPG, PNG (MAX 1 MB)
+                </p>
+              </div>
+            </div>
+          </div>
 
           <div className="flex justify-end gap-3 pt-4">
             <DialogClose asChild>
               <Button
-                type="button"
                 variant="outline"
                 className="h-12 min-w-[120px] rounded-xl border-grayScale-200 font-semibold"
-                disabled={submitting || iconUploadBusy}
               >
                 Cancel
               </Button>
             </DialogClose>
             <Button
               type="submit"
-              className="h-12 min-w-[160px] rounded-xl bg-brand-500 font-semibold text-white shadow-lg shadow-brand-500/20 hover:bg-brand-600"
-              disabled={submitting || iconUploadBusy}
+              className="h-12 min-w-[160px] rounded-xl bg-brand-500 font-semibold hover:bg-brand-600 text-white shadow-lg shadow-brand-500/20"
             >
-              {submitting ? "Creating…" : "Create module"}
+              Create Module
             </Button>
           </div>
         </form>

src/pages/content-management/components/ContentHierarchyList.tsx

@@ -1,539 +0,0 @@
-import React, { useState } from "react";
-import {
-  DndContext,
-  closestCenter,
-  KeyboardSensor,
-  PointerSensor,
-  useSensor,
-  useSensors,
-  DragOverlay,
-} from "@dnd-kit/core";
-import type {
-  DragEndEvent,
-  DragStartEvent,
-  UniqueIdentifier,
-} from "@dnd-kit/core";
-import {
-  arrayMove,
-  SortableContext,
-  sortableKeyboardCoordinates,
-  verticalListSortingStrategy,
-  useSortable,
-} from "@dnd-kit/sortable";
-import { CSS } from "@dnd-kit/utilities";
-import {
-  GripVertical,
-  ChevronDown,
-  ChevronRight,
-  LayoutGrid,
-  BookOpen,
-  Layers,
-  PlayCircle,
-  RotateCcw,
-  Edit2,
-  Trash2,
-  Image as ImageIcon,
-} from "lucide-react";
-import { cn } from "../../../lib/utils";
-
-// --- Types ---
-export type ItemType = "program" | "course" | "module" | "lesson";
-
-export interface BaseItem {
-  id: string;
-  name: string;
-  thumbnail?: string;
-}
-
-export interface Program extends BaseItem {}
-export interface Course extends BaseItem {
-  programId: string;
-}
-export interface Module extends BaseItem {
-  courseId: string;
-}
-export interface Lesson extends BaseItem {
-  moduleId: string;
-}
-
-// --- Mock Data ---
-const initialPrograms: Program[] = [
-  {
-    id: "p1",
-    name: "Web Development Masterclass",
-    thumbnail:
-      "https://images.unsplash.com/photo-1498050108023-c5249f4df085?w=100&h=100&fit=crop",
-  },
-  {
-    id: "p2",
-    name: "Mobile App Development",
-    thumbnail:
-      "https://images.unsplash.com/photo-1512941937669-90a1b58e7e9c?w=100&h=100&fit=crop",
-  },
-  {
-    id: "p3",
-    name: "UI/UX Design Fundamentals",
-    thumbnail:
-      "https://images.unsplash.com/photo-1586717791821-3f44a563eb4c?w=100&h=100&fit=crop",
-  },
-];
-
-const initialCourses: Course[] = [
-  { id: "c1", name: "React for Beginners", programId: "p1" },
-  { id: "c2", name: "Advanced Node.js", programId: "p1" },
-  { id: "c3", name: "Swift UI Intro", programId: "p2" },
-];
-
-const initialModules: Module[] = [
-  { id: "m1", name: "Introduction to Hooks", courseId: "c1" },
-  { id: "m2", name: "State Management", courseId: "c1" },
-  { id: "m3", name: "Backend Architecture", courseId: "c2" },
-];
-
-const initialLessons: Lesson[] = [
-  { id: "l1", name: "What is useState?", moduleId: "m1" },
-  { id: "l2", name: "useEffect deep dive", moduleId: "m1" },
-  { id: "l3", name: "Redux Setup", moduleId: "m2" },
-];
-
-// --- Components ---
-
-interface SortableItemProps {
-  id: string;
-  name: string;
-  icon: React.ReactNode;
-  thumbnail?: string;
-  onEdit?: (id: string) => void;
-  onDelete?: (id: string) => void;
-}
-
-function SortableItem({
-  id,
-  name,
-  icon,
-  thumbnail,
-  onEdit,
-  onDelete,
-}: SortableItemProps) {
-  const {
-    attributes,
-    listeners,
-    setNodeRef,
-    transform,
-    transition,
-    isDragging,
-  } = useSortable({ id });
-
-  const style = {
-    transform: CSS.Transform.toString(transform),
-    transition,
-  };
-
-  return (
-    <div
-      ref={setNodeRef}
-      style={style}
-      className={cn(
-        "flex items-center justify-between px-4 py-3 border border-grayScale-200 rounded-[6px] mb-2 bg-white transition-all duration-200 group/item",
-        isDragging && "opacity-50 border-dashed z-50 shadow-sm",
-        !isDragging && "hover:border-brand-200 hover:shadow-sm",
-      )}
-    >
-      <div className="flex items-center gap-4">
-        <button
-          {...attributes}
-          {...listeners}
-          className="cursor-grab active:cursor-grabbing p-1 text-grayScale-300 hover:text-brand-500 transition-colors"
-        >
-          <GripVertical className="h-4 w-4" />
-        </button>
-
-        <div className="flex items-center gap-3">
-          {/* Thumbnail/Icon Container */}
-          <div className="h-10 w-10 shrink-0 rounded-[4px] bg-grayScale-50 border border-grayScale-100 flex items-center justify-center overflow-hidden">
-            {thumbnail ? (
-              <img
-                src={thumbnail}
-                alt={name}
-                className="h-full w-full object-cover"
-              />
-            ) : (
-              <div className="text-grayScale-400 group-hover/item:text-brand-500 transition-colors">
-                {icon}
-              </div>
-            )}
-          </div>
-
-          <div className="flex flex-col">
-            <span className="text-[14px] font-bold text-grayScale-800 leading-tight">
-              {name}
-            </span>
-          </div>
-        </div>
-      </div>
-
-      <div className="flex items-center gap-1 opacity-0 group-hover/item:opacity-100 transition-opacity">
-        <button
-          onClick={() => onEdit?.(id)}
-          className="p-2 text-grayScale-400 rounded-[4px] transition-all"
-          title="Edit"
-        >
-          <Edit2 className="h-3.5 w-3.5" />
-        </button>
-        <button
-          onClick={() => onDelete?.(id)}
-          className="p-2 text-grayScale-400 rounded-[4px] transition-all"
-          title="Delete"
-        >
-          <Trash2 className="h-3.5 w-3.5" />
-        </button>
-      </div>
-    </div>
-  );
-}
-
-interface DraggableListProps {
-  items: BaseItem[];
-  onReorder: (activeId: string, overId: string) => void;
-  icon: React.ReactNode;
-  onEdit?: (id: string) => void;
-  onDelete?: (id: string) => void;
-}
-
-function DraggableList({
-  items,
-  onReorder,
-  icon,
-  onEdit,
-  onDelete,
-}: DraggableListProps) {
-  const [activeId, setActiveId] = useState<UniqueIdentifier | null>(null);
-
-  const sensors = useSensors(
-    useSensor(PointerSensor, { activationConstraint: { distance: 5 } }),
-    useSensor(KeyboardSensor, {
-      coordinateGetter: sortableKeyboardCoordinates,
-    }),
-  );
-
-  const handleDragStart = (event: DragStartEvent) =>
-    setActiveId(event.active.id);
-
-  const handleDragEnd = (event: DragEndEvent) => {
-    const { active, over } = event;
-    if (over && active.id !== over.id) {
-      onReorder(active.id as string, over.id as string);
-    }
-    setActiveId(null);
-  };
-
-  const activeItem = items.find((i) => i.id === activeId);
-
-  return (
-    <DndContext
-      sensors={sensors}
-      collisionDetection={closestCenter}
-      onDragStart={handleDragStart}
-      onDragEnd={handleDragEnd}
-    >
-      <SortableContext items={items} strategy={verticalListSortingStrategy}>
-        <div className="flex flex-col gap-1">
-          {items.map((item) => (
-            <SortableItem
-              key={item.id}
-              id={item.id}
-              name={item.name}
-              thumbnail={item.thumbnail}
-              icon={icon}
-              onEdit={onEdit}
-              onDelete={onDelete}
-            />
-          ))}
-        </div>
-      </SortableContext>
-      <DragOverlay>
-        {activeItem ? (
-          <div className="flex items-center justify-between px-4 py-3 bg-white border border-brand-300 shadow-lg rounded-[6px] opacity-90 cursor-grabbing">
-            <div className="flex items-center gap-4">
-              <div className="p-1 ">
-                <GripVertical className="h-4 w-4" />
-              </div>
-              <div className="flex items-center gap-3">
-                <div className="h-10 w-10 shrink-0 rounded-[4px] bg-grayScale-50 border border-grayScale-100 flex items-center justify-center overflow-hidden">
-                  {activeItem.thumbnail ? (
-                    <img
-                      src={activeItem.thumbnail}
-                      alt={activeItem.name}
-                      className="h-full w-full object-cover"
-                    />
-                  ) : (
-                    <div className="text-brand-500">{icon}</div>
-                  )}
-                </div>
-                <span className="text-[14px] font-bold text-grayScale-800">
-                  {activeItem.name}
-                </span>
-              </div>
-            </div>
-          </div>
-        ) : null}
-      </DragOverlay>
-    </DndContext>
-  );
-}
-
-interface SectionProps {
-  title: string;
-  icon: React.ReactNode;
-  isOpen: boolean;
-  onToggle: () => void;
-  children: React.ReactNode;
-}
-
-function HierarchySection({
-  title,
-  icon,
-  isOpen,
-  onToggle,
-  children,
-}: SectionProps) {
-  return (
-    <div className="border border-grayScale-100 rounded-xl mb-3 overflow-hidden transition-all duration-300 bg-white">
-      <button
-        onClick={onToggle}
-        className={cn(
-          "w-full flex items-center justify-between px-5 py-4 transition-colors",
-          isOpen ? "bg-grayScale-50" : "hover:bg-grayScale-25",
-        )}
-      >
-        <div className="flex items-center gap-3">
-          <div
-            className={cn(
-              "p-2 rounded-lg transition-colors",
-              isOpen
-                ? "bg-brand-300 text-white"
-                : "bg-grayScale-50 text-grayScale-500",
-            )}
-          >
-            {icon}
-          </div>
-          <span
-            className={cn(
-              "text-[15px] font-bold",
-              isOpen ? "text-grayScale-900" : "text-grayScale-700",
-            )}
-          >
-            {title}
-          </span>
-        </div>
-        {isOpen ? (
-          <ChevronDown className="h-5 w-5 text-grayScale-400" />
-        ) : (
-          <ChevronRight className="h-5 w-5 text-grayScale-400" />
-        )}
-      </button>
-      <div
-        className={cn(
-          "transition-all duration-300 ease-in-out overflow-hidden",
-          isOpen ? "max-h-[1000px] opacity-100 p-5 pt-0" : "max-h-0 opacity-0",
-        )}
-      >
-        <div className="pt-4 border-t border-grayScale-200">{children}</div>
-      </div>
-    </div>
-  );
-}
-
-export function ContentHierarchyList() {
-  const [programs, setPrograms] = useState<Program[]>(initialPrograms);
-  const [courses, setCourses] = useState<Course[]>(initialCourses);
-  const [modules, setModules] = useState<Module[]>(initialModules);
-  const [lessons, setLessons] = useState<Lesson[]>(initialLessons);
-  const [openSections, setOpenSections] = useState<Record<string, boolean>>({
-    program: true,
-  });
-
-  const toggleSection = (id: string) => {
-    setOpenSections((prev) => ({ ...prev, [id]: !prev[id] }));
-  };
-
-  const reorder = <T extends BaseItem>(
-    list: T[],
-    setList: React.Dispatch<React.SetStateAction<T[]>>,
-    activeId: string,
-    overId: string,
-  ) => {
-    const oldIndex = list.findIndex((i) => i.id === activeId);
-    const newIndex = list.findIndex((i) => i.id === overId);
-    if (oldIndex !== -1 && newIndex !== -1) {
-      setList(arrayMove(list, oldIndex, newIndex));
-    }
-  };
-
-  const handleEdit = (type: ItemType, id: string) => {
-    console.log(`Edit ${type}: ${id}`);
-    // Logic for opening edit modal would go here
-  };
-
-  const handleDelete = (type: ItemType, id: string) => {
-    if (!window.confirm(`Are you sure you want to delete this ${type}?`))
-      return;
-
-    switch (type) {
-      case "program":
-        setPrograms((prev) => prev.filter((p) => p.id !== id));
-        break;
-      case "course":
-        setCourses((prev) => prev.filter((c) => c.id !== id));
-        break;
-      case "module":
-        setModules((prev) => prev.filter((m) => m.id !== id));
-        break;
-      case "lesson":
-        setLessons((prev) => prev.filter((l) => l.id !== id));
-        break;
-    }
-  };
-
-  const handleReset = () => {
-    setPrograms(initialPrograms);
-    setCourses(initialCourses);
-    setModules(initialModules);
-    setLessons(initialLessons);
-  };
-
-  return (
-    <div className="bg-[#ffffff] rounded-2xl p-6 border border-grayScale-100 mb-8 shadow-sm">
-      <div className="flex items-center justify-between mb-6">
-        <div>
-          <h3 className="text-[16px] font-bold text-grayScale-900">
-            Content Hierarchy
-          </h3>
-          <p className="text-[12px] text-grayScale-500 mt-1">
-            Manage the ordering and structure of your educational content
-          </p>
-        </div>
-        <button
-          onClick={handleReset}
-          className="text-[13px] font-bold text-brand-300 hover:text-brand-400 transition-colors flex items-center gap-2 group"
-        >
-          <RotateCcw className="h-4 w-4 transition-transform group-hover:rotate-[-45deg]" />
-          Reset All
-        </button>
-      </div>
-
-      <div className="space-y-4">
-        {/* Program Section */}
-        <HierarchySection
-          title="Programs"
-          icon={<LayoutGrid className="h-5 w-5" />}
-          isOpen={openSections.program}
-          onToggle={() => toggleSection("program")}
-        >
-          <DraggableList
-            items={programs}
-            onReorder={(active, over) =>
-              reorder(programs, setPrograms, active, over)
-            }
-            icon={<LayoutGrid className="h-4 w-4" />}
-            onEdit={(id) => handleEdit("program", id)}
-            onDelete={(id) => handleDelete("program", id)}
-          />
-        </HierarchySection>
-
-        {/* Course Section */}
-        <HierarchySection
-          title="Courses"
-          icon={<BookOpen className="h-5 w-5" />}
-          isOpen={openSections.course}
-          onToggle={() => toggleSection("course")}
-        >
-          {programs.map((program) => {
-            const programCourses = courses.filter(
-              (c) => c.programId === program.id,
-            );
-            if (programCourses.length === 0) return null;
-            return (
-              <div key={program.id} className="mb-4 last:mb-0">
-                <h4 className="text-[12px] font-bold text-grayScale-400 uppercase tracking-wider mb-2 px-1">
-                  {program.name}
-                </h4>
-                <DraggableList
-                  items={programCourses}
-                  onReorder={(active, over) =>
-                    reorder(courses, setCourses, active, over)
-                  }
-                  icon={<BookOpen className="h-4 w-4" />}
-                  onEdit={(id) => handleEdit("course", id)}
-                  onDelete={(id) => handleDelete("course", id)}
-                />
-              </div>
-            );
-          })}
-        </HierarchySection>
-
-        {/* Module Section */}
-        <HierarchySection
-          title="Modules"
-          icon={<Layers className="h-5 w-5" />}
-          isOpen={openSections.module}
-          onToggle={() => toggleSection("module")}
-        >
-          {courses.map((course) => {
-            const courseModules = modules.filter(
-              (m) => m.courseId === course.id,
-            );
-            if (courseModules.length === 0) return null;
-            return (
-              <div key={course.id} className="mb-4 last:mb-0">
-                <h4 className="text-[12px] font-bold text-grayScale-400 uppercase tracking-wider mb-2 px-1">
-                  {course.name}
-                </h4>
-                <DraggableList
-                  items={courseModules}
-                  onReorder={(active, over) =>
-                    reorder(modules, setModules, active, over)
-                  }
-                  icon={<Layers className="h-4 w-4" />}
-                  onEdit={(id) => handleEdit("module", id)}
-                  onDelete={(id) => handleDelete("module", id)}
-                />
-              </div>
-            );
-          })}
-        </HierarchySection>
-
-        {/* Lesson Section */}
-        <HierarchySection
-          title="Lessons"
-          icon={<PlayCircle className="h-5 w-5" />}
-          isOpen={openSections.lesson}
-          onToggle={() => toggleSection("lesson")}
-        >
-          {modules.map((module) => {
-            const moduleLessons = lessons.filter(
-              (l) => l.moduleId === module.id,
-            );
-            if (moduleLessons.length === 0) return null;
-            return (
-              <div key={module.id} className="mb-4 last:mb-0">
-                <h4 className="text-[12px] font-bold text-grayScale-400 uppercase tracking-wider mb-2 px-1">
-                  {module.name}
-                </h4>
-                <DraggableList
-                  items={moduleLessons}
-                  onReorder={(active, over) =>
-                    reorder(lessons, setLessons, active, over)
-                  }
-                  icon={<PlayCircle className="h-4 w-4" />}
-                  onEdit={(id) => handleEdit("lesson", id)}
-                  onDelete={(id) => handleDelete("lesson", id)}
-                />
-              </div>
-            );
-          })}
-        </HierarchySection>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/CreatePracticeWizard.tsx

@@ -1,481 +0,0 @@
-import { useCallback, useEffect, useState } from "react"
-import { Check, ChevronLeft, ChevronRight, ListOrdered, Plus, Trash2 } from "lucide-react"
-import { toast } from "sonner"
-import { Button } from "../../../components/ui/button"
-import { Card, CardContent, CardHeader, CardTitle } from "../../../components/ui/card"
-import { Input } from "../../../components/ui/input"
-import { Textarea } from "../../../components/ui/textarea"
-import {
-  addQuestionToSet,
-  createParentLinkedPractice,
-  createQuestion,
-  createQuestionSet,
-} from "../../../api/courses.api"
-import type { CreateQuestionRequest, PracticeParentKind } from "../../../types/course.types"
-import { cn } from "../../../lib/utils"
-import { SpinnerIcon } from "../../../components/ui/spinner-icon"
-
-export type CreatePracticeWizardParent = {
-  kind: PracticeParentKind
-  id: number
-} | null
-
-const STEPS = [
-  { n: 1, label: "Question set" },
-  { n: 2, label: "Questions" },
-  { n: 3, label: "Attach" },
-  { n: 4, label: "Practice" },
-] as const
-
-type QuestionDraft = {
-  question_text: string
-  voice_prompt: string
-  sample_answer_voice_prompt: string
-  audio_correct_answer_text: string
-}
-
-const emptyQuestion = (): QuestionDraft => ({
-  question_text: "",
-  voice_prompt: "",
-  sample_answer_voice_prompt: "",
-  audio_correct_answer_text: "",
-})
-
-type Props = {
-  parent: CreatePracticeWizardParent
-  onCreated?: () => void
-}
-
-export function CreatePracticeWizard({ parent, onCreated }: Props) {
-  const [step, setStep] = useState(1)
-  const [saving, setSaving] = useState(false)
-
-  const [setTitle, setSetTitle] = useState("")
-  const [questionSetId, setQuestionSetId] = useState<number | null>(null)
-
-  const [questionRows, setQuestionRows] = useState<QuestionDraft[]>([emptyQuestion()])
-  const [createdQuestionIds, setCreatedQuestionIds] = useState<number[]>([])
-
-  const [practiceTitle, setPracticeTitle] = useState("")
-  const [storyDescription, setStoryDescription] = useState("")
-  const [storyImage, setStoryImage] = useState("")
-  const [quickTips, setQuickTips] = useState("")
-
-  const canUseWizard = parent != null
-
-  useEffect(() => {
-    if (step === 4 && setTitle.trim() && !practiceTitle.trim()) {
-      setPracticeTitle(setTitle.trim())
-    }
-  }, [step, setTitle, practiceTitle])
-
-  const resetAll = useCallback(() => {
-    setStep(1)
-    setSetTitle("")
-    setQuestionSetId(null)
-    setQuestionRows([emptyQuestion()])
-    setCreatedQuestionIds([])
-    setPracticeTitle("")
-    setStoryDescription("")
-    setStoryImage("")
-    setQuickTips("")
-  }, [])
-
-  const handleStep1 = async () => {
-    if (!setTitle.trim()) {
-      toast.error("Enter a title for the question set")
-      return
-    }
-    setSaving(true)
-    try {
-      const res = await createQuestionSet({
-        title: setTitle.trim(),
-        set_type: "PRACTICE",
-      })
-      const id = res.data?.data?.id
-      if (id == null) {
-        throw new Error("No question set id in response")
-      }
-      setQuestionSetId(id)
-      toast.success("Question set created")
-      setStep(2)
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to create question set")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  const handleStep2 = async () => {
-    for (let i = 0; i < questionRows.length; i++) {
-      const r = questionRows[i]
-      if (!r.question_text.trim()) {
-        toast.error(`Question ${i + 1}: enter question text`)
-        return
-      }
-      if (!r.voice_prompt.trim() || !r.sample_answer_voice_prompt.trim()) {
-        toast.error(`Question ${i + 1}: enter voice prompt URLs`)
-        return
-      }
-      if (!r.audio_correct_answer_text.trim()) {
-        toast.error(`Question ${i + 1}: enter the correct answer text`)
-        return
-      }
-    }
-    if (questionSetId == null) return
-    setSaving(true)
-    try {
-      const ids: number[] = []
-      for (const r of questionRows) {
-        const body: CreateQuestionRequest = {
-          question_text: r.question_text.trim(),
-          question_type: "AUDIO",
-          voice_prompt: r.voice_prompt.trim(),
-          sample_answer_voice_prompt: r.sample_answer_voice_prompt.trim(),
-          audio_correct_answer_text: r.audio_correct_answer_text.trim(),
-        }
-        const res = await createQuestion(body)
-        const qid = res.data?.data?.id
-        if (qid == null) {
-          throw new Error("A question was created but no id was returned")
-        }
-        ids.push(qid)
-      }
-      setCreatedQuestionIds(ids)
-      toast.success(`Created ${ids.length} question(s)`)
-      setStep(3)
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to create questions")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  const handleStep3 = async () => {
-    if (questionSetId == null || createdQuestionIds.length === 0) return
-    setSaving(true)
-    try {
-      for (let i = 0; i < createdQuestionIds.length; i++) {
-        await addQuestionToSet(questionSetId, {
-          question_id: createdQuestionIds[i],
-          display_order: i + 1,
-        })
-      }
-      toast.success("Questions linked to the set")
-      setStep(4)
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to attach questions")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  const handleStep4 = async () => {
-    if (!parent || questionSetId == null) return
-    if (!practiceTitle.trim() || !storyDescription.trim() || !storyImage.trim()) {
-      toast.error("Title, story description, and story image are required")
-      return
-    }
-    setSaving(true)
-    try {
-      await createParentLinkedPractice({
-        parent_kind: parent.kind,
-        parent_id: parent.id,
-        title: practiceTitle.trim(),
-        story_description: storyDescription.trim(),
-        story_image: storyImage.trim(),
-        question_set_id: questionSetId,
-        quick_tips: quickTips.trim(),
-      })
-      toast.success("Practice created successfully")
-      resetAll()
-      onCreated?.()
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to create practice")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  return (
-    <Card className="border-brand-200/60 shadow-soft">
-      <CardHeader className="border-b border-grayScale-200 pb-4">
-        <CardTitle className="text-base font-semibold text-grayScale-800">Create a new practice</CardTitle>
-        <p className="text-sm font-normal text-grayScale-500">
-          Four steps: create a question set, add audio questions, attach them, then set the practice
-          story. Select the course, module, or lesson above first.
-        </p>
-        <ol className="mt-4 flex flex-wrap gap-2">
-          {STEPS.map((s) => {
-            const done = step > s.n
-            const active = step === s.n
-            return (
-              <li
-                key={s.n}
-                className={cn(
-                  "flex items-center gap-1.5 rounded-full border px-3 py-1 text-xs font-bold uppercase tracking-wider",
-                  done && "border-mint-500/40 bg-mint-50 text-mint-800",
-                  active && !done && "border-brand-500 bg-brand-500 text-white",
-                  !active && !done && "border-grayScale-200 bg-white text-grayScale-500",
-                )}
-              >
-                {done ? <Check className="h-3.5 w-3.5" /> : <span className="font-mono tabular-nums">{s.n}</span>}
-                {s.label}
-              </li>
-            )
-          })}
-        </ol>
-      </CardHeader>
-      <CardContent className="pt-5">
-        {!canUseWizard && (
-          <p className="rounded-xl border border-amber-200 bg-amber-50/80 px-4 py-3 text-sm text-amber-900">
-            Choose a program, course, and the target (course / module / lesson) in the &quot;Look up
-            practice&quot; section, then return here. The practice is created for the same selection
-            (course id, module id, or lesson id).
-          </p>
-        )}
-
-        {canUseWizard && step === 1 && (
-          <div className="space-y-4">
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Question set title
-              </p>
-              <Input
-                value={setTitle}
-                onChange={(e) => setSetTitle(e.target.value)}
-                placeholder='e.g. "Course-A1 practice"'
-                disabled={saving}
-              />
-            </div>
-            <p className="text-xs text-grayScale-500">
-              This calls <span className="font-mono">POST /question-sets</span> with{" "}
-              <span className="font-mono">set_type: PRACTICE</span>.
-            </p>
-            <Button type="button" onClick={handleStep1} disabled={saving}>
-              {saving ? <SpinnerIcon className="h-4 w-4" /> : null}
-              Create question set &amp; continue
-            </Button>
-          </div>
-        )}
-
-        {canUseWizard && step === 2 && (
-          <div className="space-y-4">
-            <p className="text-sm text-grayScale-600">
-              Set id <span className="font-mono font-medium text-grayScale-800">#{questionSetId}</span> — add
-              one or more <strong>AUDIO</strong> questions. Each is created via{" "}
-              <span className="font-mono">POST /questions</span>.
-            </p>
-            {questionRows.map((row, idx) => (
-              <div
-                key={idx}
-                className="space-y-3 rounded-2xl border border-grayScale-200 bg-grayScale-50/50 p-4"
-              >
-                <div className="flex items-center justify-between">
-                  <span className="text-xs font-bold uppercase tracking-wider text-grayScale-500">
-                    Question {idx + 1}
-                  </span>
-                  {questionRows.length > 1 && (
-                    <Button
-                      type="button"
-                      variant="ghost"
-                      size="sm"
-                      className="h-8 text-red-600 hover:text-red-700"
-                      onClick={() => setQuestionRows((rows) => rows.filter((_, i) => i !== idx))}
-                    >
-                      <Trash2 className="h-4 w-4" />
-                    </Button>
-                  )}
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Question text</p>
-                  <Textarea
-                    value={row.question_text}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, question_text: v } : r)),
-                      )
-                    }}
-                    rows={2}
-                    placeholder="Thank you for your help!"
-                    disabled={saving}
-                  />
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Voice prompt (URL)</p>
-                  <Input
-                    value={row.voice_prompt}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, voice_prompt: v } : r)),
-                      )
-                    }}
-                    placeholder="https://…"
-                    disabled={saving}
-                  />
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Sample answer voice (URL)</p>
-                  <Input
-                    value={row.sample_answer_voice_prompt}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, sample_answer_voice_prompt: v } : r)),
-                      )
-                    }}
-                    placeholder="https://…"
-                    disabled={saving}
-                  />
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Correct answer text</p>
-                  <Textarea
-                    value={row.audio_correct_answer_text}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, audio_correct_answer_text: v } : r)),
-                      )
-                    }}
-                    rows={2}
-                    placeholder="You're welcome! Have a nice day!"
-                    disabled={saving}
-                  />
-                </div>
-              </div>
-            ))}
-            <Button
-              type="button"
-              variant="outline"
-              size="sm"
-              onClick={() => setQuestionRows((rows) => [...rows, emptyQuestion()])}
-              disabled={saving}
-            >
-              <Plus className="mr-1.5 h-4 w-4" />
-              Add another question
-            </Button>
-            <div className="flex flex-wrap gap-2 pt-2">
-              <Button type="button" variant="outline" onClick={() => setStep(1)} disabled={saving}>
-                <ChevronLeft className="mr-1 h-4 w-4" />
-                Back
-              </Button>
-              <Button type="button" onClick={handleStep2} disabled={saving}>
-                {saving ? <SpinnerIcon className="h-4 w-4" /> : null}
-                Create questions &amp; continue
-              </Button>
-            </div>
-          </div>
-        )}
-
-        {canUseWizard && step === 3 && (
-          <div className="space-y-4">
-            <p className="text-sm text-grayScale-600">
-              Link each question to the set with a display order using{" "}
-              <span className="font-mono">POST /question-sets/&#123;id&#125;/questions</span>.
-            </p>
-            <ul className="space-y-2 rounded-xl border border-grayScale-200 bg-white p-3">
-              {createdQuestionIds.map((qid, i) => (
-                <li
-                  key={qid}
-                  className="flex items-center justify-between gap-2 text-sm text-grayScale-700"
-                >
-                  <span className="font-mono">question #{qid}</span>
-                  <span className="flex items-center gap-1 text-xs text-grayScale-500">
-                    <ListOrdered className="h-3.5 w-3.5" />
-                    order {i + 1}
-                  </span>
-                </li>
-              ))}
-            </ul>
-            <div className="flex flex-wrap gap-2">
-              <Button type="button" variant="outline" onClick={() => setStep(2)} disabled={saving}>
-                <ChevronLeft className="mr-1 h-4 w-4" />
-                Back
-              </Button>
-              <Button type="button" onClick={handleStep3} disabled={saving}>
-                {saving ? <SpinnerIcon className="h-4 w-4" /> : null}
-                Attach to question set
-              </Button>
-            </div>
-          </div>
-        )}
-
-        {canUseWizard && step === 4 && parent && (
-          <div className="space-y-4">
-            <p className="text-sm text-grayScale-600">
-              Parent:{" "}
-              <span className="font-mono text-xs">
-                {parent.kind} #{parent.id}
-              </span>{" "}
-              · question set <span className="font-mono">#{questionSetId}</span> ·{" "}
-              <span className="font-mono">POST /practices</span>
-            </p>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Practice title
-              </p>
-              <Input
-                value={practiceTitle}
-                onChange={(e) => setPracticeTitle(e.target.value)}
-                placeholder="Test title"
-                disabled={saving}
-              />
-            </div>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Story description
-              </p>
-              <Textarea
-                value={storyDescription}
-                onChange={(e) => setStoryDescription(e.target.value)}
-                rows={4}
-                placeholder="Story for the learner…"
-                disabled={saving}
-              />
-            </div>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Story image (URL)
-              </p>
-              <Input
-                value={storyImage}
-                onChange={(e) => setStoryImage(e.target.value)}
-                placeholder="https://…"
-                disabled={saving}
-              />
-            </div>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Quick tips
-              </p>
-              <Textarea
-                value={quickTips}
-                onChange={(e) => setQuickTips(e.target.value)}
-                rows={2}
-                placeholder="Comma-separated tips (optional)"
-                disabled={saving}
-              />
-            </div>
-            <div className="flex flex-wrap gap-2">
-              <Button type="button" variant="outline" onClick={() => setStep(3)} disabled={saving}>
-                <ChevronLeft className="mr-1 h-4 w-4" />
-                Back
-              </Button>
-              <Button type="button" onClick={handleStep4} disabled={saving}>
-                {saving ? <SpinnerIcon className="h-4 w-4" /> : <ChevronRight className="mr-1.5 h-4 w-4" />}
-                Create practice
-              </Button>
-            </div>
-          </div>
-        )}
-      </CardContent>
-    </Card>
-  )
-}

src/pages/content-management/components/LessonMediaUploadField.tsx

@@ -1,215 +0,0 @@
-import { useCallback, useRef, useState, type ChangeEvent, type DragEvent } from "react";
-import { CloudUpload } from "lucide-react";
-import { toast } from "sonner";
-import { Input } from "../../../components/ui/input";
-import { cn } from "../../../lib/utils";
-import { uploadImageFile, uploadVideoFile } from "../../../api/files.api";
-
-const MAX_THUMB_BYTES = 5 * 1024 * 1024;
-const MAX_VIDEO_BYTES = 2 * 1024 * 1024 * 1024;
-
-const THUMB_TYPES = new Set(["image/jpeg", "image/png"]);
-const VIDEO_TYPES_PREFIX = "video/";
-
-function isAllowedThumb(file: File): boolean {
-  if (THUMB_TYPES.has(file.type)) return true;
-  const n = file.name.toLowerCase();
-  return /\.(jpe?g|png)$/.test(n);
-}
-
-function isAllowedVideoFile(file: File): boolean {
-  if (file.type.startsWith(VIDEO_TYPES_PREFIX)) return true;
-  const n = file.name.toLowerCase();
-  return /\.(mp4|webm|mov|m4v|mkv)$/.test(n);
-}
-
-export type LessonMediaUploadKind = "thumbnail" | "video";
-
-export interface LessonMediaUploadFieldProps {
-  kind: LessonMediaUploadKind;
-  value: string;
-  onChange: (url: string) => void;
-  disabled?: boolean;
-  onUploadBusyChange?: (busy: boolean) => void;
-  className?: string;
-}
-
-export function LessonMediaUploadField({
-  kind,
-  value,
-  onChange,
-  disabled = false,
-  onUploadBusyChange,
-  className,
-}: LessonMediaUploadFieldProps) {
-  const fileInputRef = useRef<HTMLInputElement>(null);
-  const [uploading, setUploading] = useState(false);
-  const [dragActive, setDragActive] = useState(false);
-
-  const setBusy = useCallback(
-    (next: boolean) => {
-      setUploading(next);
-      onUploadBusyChange?.(next);
-    },
-    [onUploadBusyChange],
-  );
-
-  const processFile = useCallback(
-    async (file: File) => {
-      if (disabled || uploading) return;
-
-      if (kind === "thumbnail") {
-        if (!isAllowedThumb(file)) {
-          toast.error("Please use a JPG or PNG image.");
-          return;
-        }
-        if (file.size > MAX_THUMB_BYTES) {
-          toast.error("Image is too large", {
-            description: "Maximum size is 5 MB.",
-          });
-          return;
-        }
-        setBusy(true);
-        try {
-          const res = await uploadImageFile(file);
-          const url = res.data?.data?.url?.trim();
-          if (!url) throw new Error("Upload did not return a file URL");
-          onChange(url);
-          toast.success("Thumbnail uploaded");
-        } catch (e: unknown) {
-          console.error(e);
-          const msg =
-            (e as { response?: { data?: { message?: string } } })?.response?.data
-              ?.message ?? "Failed to upload thumbnail";
-          toast.error(msg);
-        } finally {
-          setBusy(false);
-        }
-        return;
-      }
-
-      if (!isAllowedVideoFile(file)) {
-        toast.error("Please use a video file (e.g. MP4, WebM, MOV).");
-        return;
-      }
-      if (file.size > MAX_VIDEO_BYTES) {
-        toast.error("Video is too large", {
-          description: "Maximum size is 2 GB.",
-        });
-        return;
-      }
-      setBusy(true);
-      try {
-        const res = await uploadVideoFile(file);
-        const url = res.data?.data?.url?.trim();
-        if (!url) throw new Error("Upload did not return a file URL");
-        onChange(url);
-        toast.success("Video uploaded");
-      } catch (e: unknown) {
-        console.error(e);
-        const msg =
-          (e as { response?: { data?: { message?: string } } })?.response?.data
-            ?.message ?? "Failed to upload video";
-        toast.error(msg);
-      } finally {
-        setBusy(false);
-      }
-    },
-    [disabled, uploading, kind, onChange, setBusy],
-  );
-
-  const handleFileInputChange = (e: ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0];
-    e.target.value = "";
-    if (file) void processFile(file);
-  };
-
-  const handleDragOver = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    if (!disabled && !uploading) setDragActive(true);
-  };
-
-  const handleDragLeave = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-  };
-
-  const handleDrop = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-    if (disabled || uploading) return;
-    const file = e.dataTransfer.files?.[0];
-    if (file) void processFile(file);
-  };
-
-  const zoneDisabled = disabled || uploading;
-  const isThumb = kind === "thumbnail";
-  const label = isThumb ? "Thumbnail" : "Video";
-  const hint = isThumb
-    ? "JPG, PNG (MAX 5 MB)"
-    : "MP4, MOV, WebM (MAX 2 GB)";
-
-  return (
-    <div className={cn("space-y-3", className)}>
-      <label className="text-sm font-medium text-grayScale-700">
-        {label}
-      </label>
-      <input
-        ref={fileInputRef}
-        type="file"
-        accept={
-          isThumb
-            ? "image/jpeg,image/png,.jpg,.jpeg,.png"
-            : "video/*,.mp4,.webm,.mov,.m4v,.mkv"
-        }
-        className="sr-only"
-        onChange={handleFileInputChange}
-        disabled={zoneDisabled}
-      />
-      <button
-        type="button"
-        disabled={zoneDisabled}
-        onClick={() => fileInputRef.current?.click()}
-        onDragOver={handleDragOver}
-        onDragLeave={handleDragLeave}
-        onDrop={handleDrop}
-        className={cn(
-          "flex w-full cursor-pointer flex-col items-center justify-center rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-center transition-colors",
-          "hover:border-[#9E289180] hover:bg-grayScale-50/30",
-          dragActive && "border-[#9E2891] bg-[#9E289108]",
-          zoneDisabled && "cursor-not-allowed opacity-60",
-        )}
-      >
-        {uploading ? (
-          <p className="text-sm font-medium text-grayScale-600">Uploading…</p>
-        ) : (
-          <>
-            <CloudUpload
-              className="mb-4 h-10 w-10 text-[#9E2891]"
-              strokeWidth={1.5}
-              aria-hidden
-            />
-            <p className="text-sm">
-              <span className="font-bold text-[#9E2891]">Click to upload</span>{" "}
-              <span className="text-grayScale-500">or paste a URL below</span>
-            </p>
-            <p className="mt-1 text-xs font-medium uppercase tracking-wider text-grayScale-400">
-              {hint}
-            </p>
-          </>
-        )}
-      </button>
-      <Input
-        value={value}
-        onChange={(e) => onChange(e.target.value)}
-        placeholder="https://…"
-        className="h-12 rounded-xl"
-        disabled={disabled || uploading}
-        autoComplete="off"
-      />
-    </div>
-  );
-}

src/pages/content-management/components/ModuleIconUploadField.tsx

@@ -1,166 +0,0 @@
-import { useCallback, useRef, useState, type ChangeEvent, type DragEvent } from "react";
-import { CloudUpload } from "lucide-react";
-import { toast } from "sonner";
-import { Input } from "../../../components/ui/input";
-import { cn } from "../../../lib/utils";
-import { uploadImageFile } from "../../../api/files.api";
-
-const MAX_ICON_BYTES = 5 * 1024 * 1024;
-const ALLOWED_IMAGE_TYPES = new Set(["image/jpeg", "image/png"]);
-
-function isAllowedImageFile(file: File): boolean {
-  if (ALLOWED_IMAGE_TYPES.has(file.type)) return true;
-  const name = file.name.toLowerCase();
-  return /\.(jpe?g|png)$/.test(name);
-}
-
-export interface ModuleIconUploadFieldProps {
-  value: string;
-  onChange: (url: string) => void;
-  disabled?: boolean;
-  /** Notifies parent so dialogs can block closing while an upload is in flight. */
-  onUploadBusyChange?: (busy: boolean) => void;
-  className?: string;
-}
-
-export function ModuleIconUploadField({
-  value,
-  onChange,
-  disabled = false,
-  onUploadBusyChange,
-  className,
-}: ModuleIconUploadFieldProps) {
-  const fileInputRef = useRef<HTMLInputElement>(null);
-  const [uploading, setUploading] = useState(false);
-  const [dragActive, setDragActive] = useState(false);
-
-  const setBusy = useCallback(
-    (next: boolean) => {
-      setUploading(next);
-      onUploadBusyChange?.(next);
-    },
-    [onUploadBusyChange],
-  );
-
-  const processFile = useCallback(
-    async (file: File) => {
-      if (disabled || uploading) return;
-      if (!isAllowedImageFile(file)) {
-        toast.error("Please use a JPG or PNG image.");
-        return;
-      }
-      if (file.size > MAX_ICON_BYTES) {
-        toast.error("Image is too large", {
-          description: "Maximum size is 5 MB.",
-        });
-        return;
-      }
-      setBusy(true);
-      try {
-        const res = await uploadImageFile(file);
-        const url = res.data?.data?.url?.trim();
-        if (!url) {
-          throw new Error("Upload did not return a file URL");
-        }
-        onChange(url);
-        toast.success("Icon uploaded");
-      } catch (e: unknown) {
-        console.error(e);
-        const msg =
-          (e as { response?: { data?: { message?: string } } })?.response?.data
-            ?.message ?? "Failed to upload icon";
-        toast.error(msg);
-      } finally {
-        setBusy(false);
-      }
-    },
-    [disabled, uploading, onChange, setBusy],
-  );
-
-  const handleFileInputChange = (e: ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0];
-    e.target.value = "";
-    if (file) void processFile(file);
-  };
-
-  const handleDragOver = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    if (!disabled && !uploading) setDragActive(true);
-  };
-
-  const handleDragLeave = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-  };
-
-  const handleDrop = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-    if (disabled || uploading) return;
-    const file = e.dataTransfer.files?.[0];
-    if (file) void processFile(file);
-  };
-
-  const zoneDisabled = disabled || uploading;
-  const showSpinner = uploading;
-
-  return (
-    <div className={cn("space-y-3", className)}>
-      <label className="text-[15px] font-medium text-grayScale-700 md:text-sm">
-        Icon
-      </label>
-      <input
-        ref={fileInputRef}
-        type="file"
-        accept="image/jpeg,image/png,.jpg,.jpeg,.png"
-        className="sr-only"
-        onChange={handleFileInputChange}
-        disabled={zoneDisabled}
-      />
-      <button
-        type="button"
-        disabled={zoneDisabled}
-        onClick={() => fileInputRef.current?.click()}
-        onDragOver={handleDragOver}
-        onDragLeave={handleDragLeave}
-        onDrop={handleDrop}
-        className={cn(
-          "flex w-full cursor-pointer flex-col items-center justify-center rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-center transition-colors",
-          "hover:border-[#9E289180] hover:bg-grayScale-50/30",
-          dragActive && "border-[#9E2891] bg-[#9E289108]",
-          zoneDisabled && "cursor-not-allowed opacity-60",
-        )}
-      >
-        {showSpinner ? (
-          <p className="text-sm font-medium text-grayScale-600">Uploading…</p>
-        ) : (
-          <>
-            <CloudUpload
-              className="mb-4 h-10 w-10 text-[#9E2891]"
-              strokeWidth={1.5}
-              aria-hidden
-            />
-            <p className="text-sm">
-              <span className="font-bold text-[#9E2891]">Click to upload</span>{" "}
-              <span className="text-grayScale-500">or paste a URL below</span>
-            </p>
-            <p className="mt-1 text-xs font-medium uppercase tracking-wider text-grayScale-400">
-              JPG, PNG (MAX 5 MB)
-            </p>
-          </>
-        )}
-      </button>
-      <Input
-        value={value}
-        onChange={(e) => onChange(e.target.value)}
-        placeholder="https://…"
-        className="h-12 rounded-xl"
-        disabled={disabled || uploading}
-        autoComplete="off"
-      />
-    </div>
-  );
-}

src/pages/content-management/components/PreviewLimitedFileVideo.tsx

@@ -1,66 +0,0 @@
-import { useState } from "react";
-import { cn } from "../../../lib/utils";
-import {
-  DEFAULT_PREVIEW_MAX_SECONDS,
-  formatPreviewLength,
-} from "../../../lib/videoPreview";
-
-type Props = {
-  src: string;
-  maxSeconds?: number;
-};
-
-/**
- * Stops direct file playback after the first N seconds (admin short preview).
- */
-export function PreviewLimitedFileVideo({
-  src,
-  maxSeconds = DEFAULT_PREVIEW_MAX_SECONDS,
-}: Props) {
-  const [capped, setCapped] = useState(false);
-  const previewLengthLabel = formatPreviewLength(maxSeconds);
-
-  const onTimeUpdate = (e: React.SyntheticEvent<HTMLVideoElement>) => {
-    const el = e.currentTarget;
-    if (el.currentTime >= maxSeconds) {
-      el.pause();
-      if (el.currentTime > maxSeconds) {
-        el.currentTime = maxSeconds;
-      }
-      setCapped(true);
-    } else {
-      setCapped(false);
-    }
-  };
-
-  const onSeeking = (e: React.SyntheticEvent<HTMLVideoElement>) => {
-    const el = e.currentTarget;
-    if (el.currentTime > maxSeconds) {
-      el.currentTime = maxSeconds;
-    }
-  };
-
-  return (
-    <div className="relative">
-      <video
-        controls
-        playsInline
-        className="aspect-video w-full object-contain"
-        src={src}
-        onTimeUpdate={onTimeUpdate}
-        onSeeking={onSeeking}
-        onPlay={() => setCapped(false)}
-      />
-      <div
-        className={cn(
-          "pointer-events-none absolute bottom-0 left-0 right-0 z-10 bg-gradient-to-t from-black/90 via-black/50 to-transparent px-3 py-2.5 text-center text-[11px] font-semibold",
-          capped ? "text-amber-200" : "text-white/95",
-        )}
-      >
-        {capped
-          ? `Preview stopped at ${previewLengthLabel} · rewind to rewatch the clip`
-          : `Short clip · playback stops at ${previewLengthLabel}`}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/VideoCard.tsx

@@ -1,43 +1,14 @@
-import { useEffect, useMemo, useState } from "react";
-import { MoreVertical, Edit2, Play, Pencil, Trash2 } from "lucide-react";
+import { MoreVertical, Edit2, Play } from "lucide-react";
 import { Button } from "../../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-} from "../../../components/ui/dialog";
-import { isAdminOrSuperAdminRole } from "../../../lib/sessionRole";
 import { cn } from "../../../lib/utils";
-import {
-  applyShortPreviewToEmbedUrl,
-  DEFAULT_PREVIEW_MAX_SECONDS,
-  formatPreviewLength,
-  getVideoPreview,
-} from "../../../lib/videoPreview";
-import { PreviewLimitedFileVideo } from "./PreviewLimitedFileVideo";
 
 interface VideoCardProps {
-  id?: string | number;
+  id: string;
   title: string;
-  /** Omits the duration chip when not provided (e.g. API has no length yet). */
-  duration?: string;
-  /** When omitted, shows a neutral "Lesson" chip and no Publish button. */
-  status?: "Draft" | "Published";
-  thumbnailGradient?: string;
-  thumbnailUrl?: string | null;
-  /**
-   * When set, the hover play control opens a preview (Vimeo, YouTube, or direct
-   * video file) in a dialog.
-   */
-  videoUrl?: string;
-  /**
-   * When true, shows edit/delete in the top-right of the thumbnail (same
-   * hover pattern as module cards) and removes the footer + overflow menu.
-   */
-  hoverModuleActions?: boolean;
+  duration: string;
+  status: "Draft" | "Published";
+  thumbnailGradient: string;
   onEdit?: () => void;
-  onDelete?: () => void;
   onPublish?: () => void;
 }
 
@@ -45,330 +16,84 @@ export function VideoCard({
   title,
   duration,
   status,
-  thumbnailGradient = "from-[#CBD5E1] to-[#94A3B8]",
-  thumbnailUrl,
-  videoUrl,
+  thumbnailGradient,
   onEdit,
-  onDelete,
   onPublish,
-  hoverModuleActions = false,
 }: VideoCardProps) {
-  const [thumbFailed, setThumbFailed] = useState(false);
-  const [previewOpen, setPreviewOpen] = useState(false);
-  /** Iframe players ignore URL limits in many cases — unmount after real time. */
-  const [iframeSessionDone, setIframeSessionDone] = useState(false);
-  const [iframeSessionKey, setIframeSessionKey] = useState(0);
-  const useGradient = !thumbnailUrl?.trim() || thumbFailed;
-  const videoPreview = useMemo(
-    () => (videoUrl?.trim() ? getVideoPreview(videoUrl) : { kind: "none" as const }),
-    [videoUrl],
-  );
-  const limitedEmbedSrc = useMemo(() => {
-    if (videoPreview.kind !== "iframe") return null;
-    return applyShortPreviewToEmbedUrl(
-      videoPreview.src,
-      videoPreview.label,
-      DEFAULT_PREVIEW_MAX_SECONDS,
-    );
-  }, [videoPreview]);
-  const canPreview = Boolean(videoUrl?.trim());
-  const previewLengthLabel = formatPreviewLength(
-    DEFAULT_PREVIEW_MAX_SECONDS,
-  );
-
-  useEffect(() => {
-    if (!previewOpen) {
-      setIframeSessionDone(false);
-      return;
-    }
-    if (videoPreview.kind !== "iframe" || !limitedEmbedSrc) {
-      return;
-    }
-    if (iframeSessionDone) {
-      return;
-    }
-    const ms = DEFAULT_PREVIEW_MAX_SECONDS * 1000;
-    const id = window.setTimeout(() => {
-      setIframeSessionDone(true);
-    }, ms);
-    return () => window.clearTimeout(id);
-  }, [
-    previewOpen,
-    videoPreview.kind,
-    limitedEmbedSrc,
-    iframeSessionDone,
-  ]);
-
-  const handlePreviewOpenChange = (open: boolean) => {
-    setPreviewOpen(open);
-    if (!open) {
-      setIframeSessionDone(false);
-      setIframeSessionKey((k) => k + 1);
-    }
-  };
-
   return (
-    <div
-      className={cn(
-        "group relative bg-white rounded-[24px] border border-grayScale-50 overflow-hidden shadow-sm hover:shadow-lg transition-all duration-300 flex flex-col",
-      )}
-    >
+    <div className="group bg-white rounded-[24px] border border-grayScale-50 overflow-hidden shadow-sm hover:shadow-lg transition-all duration-300 flex flex-col">
       {/* Thumbnail */}
       <div
         className={cn(
-          "relative h-44 w-full overflow-hidden",
-          useGradient && "bg-gradient-to-br",
-          useGradient && thumbnailGradient,
-          !useGradient && "bg-grayScale-100",
+          "relative h-44 w-full bg-gradient-to-br",
+          thumbnailGradient,
         )}
       >
-        {hoverModuleActions && (onEdit || onDelete) ? (
-          <div
-            className="absolute right-2 top-2 z-20 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto"
-          >
-            {onEdit ? (
-              <Button
-                type="button"
-                variant="secondary"
-                size="icon"
-                className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                aria-label={`Edit ${title}`}
-                onClick={(e) => {
-                  e.stopPropagation();
-                  onEdit();
-                }}
-              >
-                <Pencil className="h-3.5 w-3.5" />
-              </Button>
-            ) : null}
-            {onDelete ? (
-              <Button
-                type="button"
-                variant="secondary"
-                size="icon"
-                className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                aria-label={`Delete ${title}`}
-                onClick={(e) => {
-                  e.stopPropagation();
-                  onDelete();
-                }}
-              >
-                <Trash2 className="h-3.5 w-3.5" />
-              </Button>
-            ) : null}
-          </div>
-        ) : null}
-        {!useGradient && thumbnailUrl ? (
-          <img
-            src={thumbnailUrl}
-            alt=""
-            className="absolute inset-0 h-full w-full object-cover"
-            onError={() => setThumbFailed(true)}
-          />
-        ) : null}
         {/* Duration Badge */}
-        {duration ? (
-          <div className="absolute bottom-3 right-3 z-10 bg-black/70 text-white text-[11px] font-bold px-2 py-1 rounded-md backdrop-blur-sm">
-            {duration}
+        <div className="absolute bottom-3 right-3 bg-black/70 text-white text-[11px] font-bold px-2 py-1 rounded-md backdrop-blur-sm">
+          {duration}
+        </div>
+        {/* Play Overlay */}
+        <div className="absolute inset-0 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity bg-black/10">
+          <div className="h-12 w-12 rounded-full bg-white/20 backdrop-blur-md flex items-center justify-center border border-white/30">
+            <Play className="h-6 w-6 text-white fill-current" />
           </div>
-        ) : null}
-        {/* Play: opens preview dialog when videoUrl is set */}
-        {canPreview ? (
-          <button
-            type="button"
-            className="absolute inset-0 z-[8] flex cursor-pointer items-center justify-center bg-gradient-to-b from-black/0 via-black/20 to-black/30 opacity-0 transition-all duration-300 group-hover:opacity-100"
-            onClick={(e) => {
-              e.stopPropagation();
-              e.preventDefault();
-              setPreviewOpen(true);
-            }}
-            aria-label={`Play preview: ${title}`}
-          >
-            <span className="flex h-12 w-12 items-center justify-center rounded-full border border-white/40 bg-white/20 shadow-lg backdrop-blur-md transition-transform duration-300 group-hover:scale-105 group-hover:border-white/50 group-hover:bg-white/30">
-              <Play className="h-6 w-6 text-white" fill="currentColor" />
-            </span>
-          </button>
-        ) : (
-          <div className="pointer-events-none absolute inset-0 z-[5] flex items-center justify-center bg-black/10 opacity-0 transition-opacity group-hover:opacity-100">
-            <div className="h-12 w-12 rounded-full bg-white/20 backdrop-blur-md flex items-center justify-center border border-white/30">
-              <Play className="h-6 w-6 text-white fill-current" />
-            </div>
-          </div>
-        )}
+        </div>
       </div>
 
-      <Dialog open={previewOpen} onOpenChange={handlePreviewOpenChange}>
-        <DialogContent
-          className="max-w-4xl w-[min(100vw-1.5rem,56rem)] gap-0 overflow-hidden rounded-2xl border border-grayScale-200 p-0 shadow-2xl"
-          onOpenAutoFocus={(e) => e.preventDefault()}
-        >
-          <div className="border-b border-grayScale-100 bg-gradient-to-r from-[#F8FAFC] to-white px-5 py-4 pr-12 sm:px-6 sm:pr-14">
-            <DialogHeader className="space-y-0.5 p-0 text-left">
-              <p className="text-[10px] font-bold uppercase tracking-[0.2em] text-brand-500">
-                Short preview
-              </p>
-              <DialogTitle className="line-clamp-2 text-left text-base font-bold leading-snug text-grayScale-900 sm:text-lg">
-                {title}
-              </DialogTitle>
-              <p className="pt-0.5 text-left text-xs font-medium text-grayScale-500">
-                The player closes automatically after {previewLengthLabel} in
-                this window (YouTube/Vimeo can’t be trimmed reliably). For the
-                full lesson, use your LMS app.
-              </p>
-            </DialogHeader>
-          </div>
-          <div className="bg-black">
-            {videoPreview.kind === "iframe" && limitedEmbedSrc ? (
-              iframeSessionDone ? (
-                <div className="flex min-h-[220px] flex-col items-center justify-center gap-3 bg-gradient-to-b from-grayScale-900 to-grayScale-950 px-6 py-10 text-center">
-                  <p className="text-sm font-semibold text-white">
-                    Preview time in this window has ended
-                  </p>
-                  <p className="max-w-sm text-xs text-white/60">
-                    The embed is removed after {previewLengthLabel} of real time
-                    so the full video is not available here.
-                  </p>
-                  <Button
-                    type="button"
-                    size="sm"
-                    variant="secondary"
-                    className="mt-1 font-bold"
-                    onClick={() => {
-                      setIframeSessionDone(false);
-                      setIframeSessionKey((k) => k + 1);
-                    }}
-                  >
-                    Start preview again
-                  </Button>
-                  {videoUrl && isAdminOrSuperAdminRole() ? (
-                    <a
-                      href={videoUrl}
-                      target="_blank"
-                      rel="noopener noreferrer"
-                      className="text-xs font-semibold text-brand-300 underline-offset-2 hover:underline"
-                    >
-                      Open full video in new tab
-                    </a>
-                  ) : null}
-                </div>
-              ) : (
-                <div className="relative aspect-video w-full">
-                  <iframe
-                    key={`${iframeSessionKey}-${limitedEmbedSrc}`}
-                    src={limitedEmbedSrc}
-                    title={`${videoPreview.label} preview: ${title}`}
-                    className="absolute inset-0 h-full w-full"
-                    allow="autoplay; fullscreen; picture-in-picture; encrypted-media"
-                    allowFullScreen
-                  />
-                  <div className="pointer-events-none absolute bottom-0 left-0 right-0 z-10 bg-gradient-to-t from-black/90 via-black/50 to-transparent px-3 py-2.5 text-center text-[11px] font-semibold text-white/95">
-                    Stops in {previewLengthLabel} (hard limit)
-                  </div>
-                </div>
-              )
-            ) : videoPreview.kind === "video" ? (
-              <PreviewLimitedFileVideo
-                src={videoPreview.src}
-                maxSeconds={DEFAULT_PREVIEW_MAX_SECONDS}
-              />
-            ) : (
-              <div className="flex min-h-[200px] flex-col items-center justify-center gap-2 bg-grayScale-900 px-6 py-10 text-center">
-                <p className="text-sm font-medium text-white/90">
-                  This link can’t be played inline
-                </p>
-                <p className="max-w-sm text-xs text-white/50">
-                  Use a Vimeo, YouTube, or direct URL to a video file (e.g. MP4)
-                  for an embedded preview.
-                </p>
-                {videoUrl ? (
-                  <a
-                    href={videoUrl}
-                    target="_blank"
-                    rel="noopener noreferrer"
-                    className="mt-1 text-sm font-semibold text-brand-300 underline-offset-2 hover:underline"
-                  >
-                    Open in new tab
-                  </a>
-                ) : null}
-              </div>
-            )}
-          </div>
-        </DialogContent>
-      </Dialog>
-
       {/* Content */}
       <div className="p-5 space-y-4 flex-1 flex flex-col">
-        <div
-          className={cn(
-            "flex items-center gap-2",
-            hoverModuleActions ? "justify-start" : "justify-between",
-          )}
-        >
+        <div className="flex items-center justify-between">
           {/* Status Badge */}
-          {status ? (
+          <div
+            className={cn(
+              "flex items-center gap-1.5 px-3 py-1 rounded-full text-[11px] font-bold uppercase tracking-wider border",
+              status === "Published"
+                ? "bg-[#ECFDF5] text-[#059669] border-[#D1FAE5]"
+                : "bg-[#F3F4F6] text-[#6B7280] border-[#E5E7EB]",
+            )}
+          >
             <div
               className={cn(
-                "flex items-center gap-1.5 px-3 py-1 rounded-full text-[11px] font-bold uppercase tracking-wider border min-w-0",
-                status === "Published"
-                  ? "bg-[#ECFDF5] text-[#059669] border-[#D1FAE5]"
-                  : "bg-[#F3F4F6] text-[#6B7280] border-[#E5E7EB]",
+                "h-1.5 w-1.5 rounded-full",
+                status === "Published" ? "bg-[#10B981]" : "bg-[#9CA3AF]",
               )}
-            >
-              <div
-                className={cn(
-                  "h-1.5 w-1.5 rounded-full flex-shrink-0",
-                  status === "Published" ? "bg-[#10B981]" : "bg-[#9CA3AF]",
-                )}
-              />
-              {status}
-            </div>
-          ) : (
-            <div className="flex min-w-0 items-center gap-1.5 px-3 py-1 rounded-full text-[11px] font-bold uppercase tracking-wider border border-[#E5E7EB] bg-grayScale-50 text-grayScale-500">
-              <div className="h-1.5 w-1.5 rounded-full flex-shrink-0 bg-[#9CA3AF]" />
-              Lesson
-            </div>
-          )}
-          {!hoverModuleActions ? (
-            <button
-              type="button"
-              className="h-8 w-8 flex flex-shrink-0 items-center justify-center rounded-full hover:bg-grayScale-50 transition-colors text-grayScale-400"
-            >
-              <MoreVertical className="h-5 w-5" />
-            </button>
-          ) : null}
+            />
+            {status}
+          </div>
+          {/* Menu */}
+          <button className="h-8 w-8 flex items-center justify-center rounded-full hover:bg-grayScale-50 transition-colors text-grayScale-400">
+            <MoreVertical className="h-5 w-5" />
+          </button>
         </div>
 
         <h3 className="text-[16px] font-medium text-grayScale-900 line-clamp-2 leading-snug">
           {title}
         </h3>
 
-        {/* Actions (footer) — not used for API lesson cards with hover tools */}
-        {!hoverModuleActions ? (
-          <div className="pt-2 space-y-3 mt-auto">
-            <Button
-              variant="outline"
-              onClick={onEdit}
-              className="w-full h-10 rounded-xl border-grayScale-200 text-grayScale-600 font-bold hover:bg-grayScale-50 transition-all flex items-center justify-center gap-2"
-            >
-              <Edit2 className="h-4 w-4" />
-              Edit
-            </Button>
-            {status ? (
-              <Button
-                disabled={status === "Published"}
-                onClick={onPublish}
-                className={cn(
-                  "w-full h-10 rounded-xl font-bold transition-all shadow-sm",
-                  status === "Published"
-                    ? "bg-[#E9D5E5] text-white opacity-100 cursor-default"
-                    : "bg-brand-500 text-white hover:bg-brand-600 shadow-brand-500/10",
-                )}
-              >
-                {status === "Published" ? "Published" : "Publish"}
-              </Button>
-            ) : null}
-          </div>
-        ) : null}
+        {/* Actions */}
+        <div className="pt-2 space-y-3 mt-auto">
+          <Button
+            variant="outline"
+            onClick={onEdit}
+            className="w-full h-10 rounded-xl border-grayScale-200 text-grayScale-600 font-bold hover:bg-grayScale-50 transition-all flex items-center justify-center gap-2"
+          >
+            <Edit2 className="h-4 w-4" />
+            Edit
+          </Button>
+          <Button
+            disabled={status === "Published"}
+            onClick={onPublish}
+            className={cn(
+              "w-full h-10 rounded-xl font-bold transition-all shadow-sm",
+              status === "Published"
+                ? "bg-[#E9D5E5] text-white opacity-100 cursor-default"
+                : "bg-brand-500 text-white hover:bg-brand-600 shadow-brand-500/10",
+            )}
+          >
+            {status === "Published" ? "Published" : "Publish"}
+          </Button>
+        </div>
       </div>
     </div>
   );

src/pages/content-management/components/practice-steps/VoicePrompt.tsx

@@ -1,7 +1,6 @@
 import { useEffect, useRef, useState } from "react";
 import { Play, Pause, X } from "lucide-react";
 import { cn } from "../../../../lib/utils";
-import { resolveDisplayMediaUrl } from "../../../../lib/mediaUrl";
 
 interface VoicePromptProps {
   /** Either a URL/path to the audio file, or a filename string (for display-only mode) */
@@ -22,34 +21,13 @@ export function VoicePrompt({
   const [bars, setBars] = useState<number[]>([]);
   const [isPlaying, setIsPlaying] = useState(false);
   const [progress, setProgress] = useState(0); // 0–1
-  const [playableSrc, setPlayableSrc] = useState("");
 
   const audioRef = useRef<HTMLAudioElement | null>(null);
   const rafRef = useRef<number | null>(null);
 
-  useEffect(() => {
-    let cancelled = false;
-    (async () => {
-      const raw = src?.trim() || "";
-      if (!raw) {
-        setPlayableSrc("");
-        return;
-      }
-      try {
-        const resolved = await resolveDisplayMediaUrl(raw);
-        if (!cancelled) setPlayableSrc(resolved || raw);
-      } catch {
-        if (!cancelled) setPlayableSrc(raw);
-      }
-    })();
-    return () => {
-      cancelled = true;
-    };
-  }, [src]);
-
   // ─── Decode audio and build waveform bars ───────────────────────────────────
   useEffect(() => {
-    if (!playableSrc) {
+    if (!src) {
       // No real audio — generate plausible static bars
       setBars(generateFakeBars());
       return;
@@ -58,7 +36,7 @@ export function VoicePrompt({
     let cancelled = false;
     const audioCtx = new AudioContext();
 
-    fetch(playableSrc)
+    fetch(src)
       .then((r) => r.arrayBuffer())
       .then((buf) => audioCtx.decodeAudioData(buf))
       .then((decoded) => {
@@ -84,15 +62,7 @@ export function VoicePrompt({
     return () => {
       cancelled = true;
     };
-  }, [playableSrc]);
-
-  useEffect(() => {
-    audioRef.current?.pause();
-    audioRef.current = null;
-    setIsPlaying(false);
-    setProgress(0);
-    stopProgressLoop();
-  }, [playableSrc]);
+  }, [src]);
 
   // ─── Sync progress while playing ────────────────────────────────────────────
   const startProgressLoop = () => {
@@ -114,10 +84,10 @@ export function VoicePrompt({
 
   // ─── Play / Pause ────────────────────────────────────────────────────────────
   const handlePlayPause = () => {
-    if (!playableSrc) return;
+    if (!src) return;
 
     if (!audioRef.current) {
-      audioRef.current = new Audio(playableSrc);
+      audioRef.current = new Audio(src);
       audioRef.current.onended = () => {
         setIsPlaying(false);
         setProgress(0);

src/pages/content-management/components/video-steps/ReviewPublishStep.tsx

@@ -1,167 +1,86 @@
-import { useEffect, useMemo, useState } from "react";
-import { Rocket, Edit2, Link2, Video } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { toast } from "sonner";
-import type { AddLessonFormData } from "../../AddVideoFlow";
 import {
-  applyShortPreviewToEmbedUrl,
-  DEFAULT_PREVIEW_MAX_SECONDS,
-  formatPreviewLength,
-  getVideoPreview,
-  resolveThumbnailForPreview,
-} from "../../../../lib/videoPreview";
-import { PreviewLimitedFileVideo } from "../PreviewLimitedFileVideo";
+  Rocket,
+  Edit2,
+  Layout,
+  Volume2,
+  Settings,
+  Maximize2,
+} from "lucide-react";
+import { Button } from "../../../../components/ui/button";
 
 interface ReviewPublishStepProps {
-  formData: AddLessonFormData;
+  formData: any;
   prevStep: () => void;
-  onPublish: () => void;
-  publishing: boolean;
-}
-
-function truncate(s: string, max: number): string {
-  if (s.length <= max) return s;
-  return `${s.slice(0, max)}…`;
+  setIsPublished: (val: boolean) => void;
 }
 
 export function ReviewPublishStep({
   formData,
   prevStep,
-  onPublish,
-  publishing,
+  setIsPublished,
 }: ReviewPublishStepProps) {
-  const [thumbBroken, setThumbBroken] = useState(false);
-  const videoPreview = useMemo(
-    () => getVideoPreview(formData.videoUrl),
-    [formData.videoUrl],
-  );
-  const limitedEmbedSrc = useMemo(() => {
-    if (videoPreview.kind !== "iframe") return null;
-    return applyShortPreviewToEmbedUrl(
-      videoPreview.src,
-      videoPreview.label,
-      DEFAULT_PREVIEW_MAX_SECONDS,
-    );
-  }, [videoPreview]);
-  const previewLengthLabel = formatPreviewLength(DEFAULT_PREVIEW_MAX_SECONDS);
-  const thumbSrc = useMemo(
-    () => resolveThumbnailForPreview(formData.thumbnailUrl),
-    [formData.thumbnailUrl],
-  );
-
-  useEffect(() => {
-    setThumbBroken(false);
-  }, [thumbSrc]);
-
   return (
     <div className="space-y-6 animate-in fade-in slide-in-from-bottom-4 duration-500 pb-20">
+      {/* 1. Video Preview Card */}
       <div className="bg-white rounded-[16px] border border-grayScale-50 shadow-sm overflow-hidden">
-        <div className="px-8 py-5 border-b border-grayScale-50 flex flex-col gap-1 sm:flex-row sm:items-end sm:justify-between bg-white">
+        <div className="px-8 py-5 border-b border-grayScale-50 flex items-center justify-between bg-white">
           <h3 className="text-[17px] font-bold text-grayScale-900">
-            Media preview
+            Video Preview
           </h3>
-          <p className="text-xs font-medium text-grayScale-500">
-            Video: short clip (first {previewLengthLabel} only)
-          </p>
+          <span className="bg-[#FAF5FF] text-brand-500 text-[10px] font-bold px-3 py-1.5 rounded-[6px] tracking-wider uppercase border border-brand-100/50">
+            PROCESSED
+          </span>
         </div>
-        <div className="p-8">
-          <div className="flex flex-col gap-10 xl:flex-row xl:items-start xl:gap-10">
-            {/* Video preview */}
-            <div className="min-w-0 flex-1 space-y-3">
-              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-                Video
-              </span>
-              {formData.videoUrl ? (
-                <div className="space-y-3">
-                  {videoPreview.kind === "iframe" && limitedEmbedSrc ? (
-                    <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-black shadow-sm">
-                      <div className="relative aspect-video w-full max-w-4xl">
-                        <iframe
-                          key={limitedEmbedSrc}
-                          src={limitedEmbedSrc}
-                          title={`${videoPreview.label} lesson preview`}
-                          className="absolute inset-0 h-full w-full"
-                          allow="autoplay; fullscreen; picture-in-picture"
-                          allowFullScreen
-                        />
-                        <div className="pointer-events-none absolute bottom-0 left-0 right-0 z-10 bg-gradient-to-t from-black/90 via-black/50 to-transparent px-3 py-2.5 text-center text-[11px] font-semibold text-white/95">
-                          Short clip · max {previewLengthLabel}
-                        </div>
-                      </div>
-                    </div>
-                  ) : videoPreview.kind === "video" ? (
-                    <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-black shadow-sm">
-                      <PreviewLimitedFileVideo
-                        src={videoPreview.src}
-                        maxSeconds={DEFAULT_PREVIEW_MAX_SECONDS}
-                      />
-                    </div>
-                  ) : (
-                    <div className="flex min-h-[200px] flex-col items-center justify-center gap-2 rounded-xl border-2 border-dashed border-grayScale-200 bg-grayScale-50/80 px-6 py-10 text-center">
-                      <Video className="h-10 w-10 text-grayScale-300" />
-                      <p className="text-sm font-medium text-grayScale-600">
-                        No inline preview for this URL
-                      </p>
-                      <p className="text-xs text-grayScale-500 max-w-md">
-                        Use a Vimeo, YouTube, or direct link to a video file
-                        (MP4, WebM, …) to see a player here. The URL below will
-                        still be saved.
-                      </p>
-                    </div>
-                  )}
-                  <div className="flex items-start gap-2 text-[13px] text-grayScale-600 break-all">
-                    <Link2 className="h-3.5 w-3.5 mt-0.5 flex-shrink-0 text-grayScale-400" />
-                    {truncate(formData.videoUrl, 220)}
-                  </div>
-                </div>
-              ) : (
-                <p className="text-grayScale-400 text-sm">—</p>
-              )}
+        <div className="p-10 flex items-center justify-center bg-[#F8FAFC]/30">
+          <div className="relative w-full max-w-4xl aspect-video rounded-[12px] overflow-hidden bg-black shadow-2xl group border-4 border-white">
+            {/* Mock Player Control Overlays */}
+            <div className="absolute inset-0 flex items-center justify-center">
+              <div className="h-16 w-16 rounded-full bg-white/20 backdrop-blur-md flex items-center justify-center border border-white/30 cursor-pointer hover:scale-110 transition-transform">
+                <div className="w-0 h-0 border-t-[10px] border-t-transparent border-l-[18px] border-l-white border-b-[10px] border-b-transparent ml-1" />
+              </div>
             </div>
 
-            {/* Thumbnail preview */}
-            <div className="w-full shrink-0 space-y-3 xl:max-w-[360px]">
-              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-                Thumbnail
-              </span>
-              {formData.thumbnailUrl && thumbSrc ? (
-                <div className="space-y-3">
-                  <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-100 shadow-sm">
-                    <div className="relative aspect-video w-full max-w-md">
-                      {!thumbBroken ? (
-                        <img
-                          src={thumbSrc}
-                          alt=""
-                          className="absolute inset-0 h-full w-full object-cover"
-                          onError={() => setThumbBroken(true)}
-                        />
-                      ) : (
-                        <div className="flex aspect-video w-full max-w-md items-center justify-center bg-grayScale-200 px-4 text-center text-xs text-grayScale-500">
-                          Thumbnail could not be loaded. URL will still be
-                          saved.
-                        </div>
-                      )}
-                    </div>
-                  </div>
-                  <p className="text-[12px] text-grayScale-500 break-all">
-                    {truncate(formData.thumbnailUrl, 160)}
-                  </p>
+            {/* Bottom Controls — Matching Image 1884 */}
+            <div className="absolute bottom-0 left-0 right-0 p-6 bg-gradient-to-t from-black/95 via-black/40 to-transparent space-y-4">
+              {/* Row 1: Seeker and Timestamps */}
+              <div className="flex items-center gap-4 text-white">
+                <span className="text-[13px] font-medium opacity-90">0:00</span>
+                <div className="flex-1 h-1 bg-white/20 rounded-full relative cursor-pointer overflow-hidden group/seeker">
+                  <div
+                    className="absolute left-0 top-0 bottom-0 bg-brand-500 rounded-full"
+                    style={{ width: "40%" }}
+                  />
                 </div>
-              ) : (
-                <p className="text-grayScale-400 text-sm">—</p>
-              )}
+                <span className="text-[13px] font-medium opacity-90">
+                  12:30
+                </span>
+              </div>
+
+              {/* Row 2: Icons */}
+              <div className="flex items-center justify-between text-white">
+                <div className="flex items-center gap-6">
+                  <Volume2 className="h-[22px] w-[22px] opacity-90 cursor-pointer hover:opacity-100 transition-opacity" />
+                  <div className="h-5 w-6 border-2 border-white rounded-[3px] flex items-center justify-center text-[9px] font-bold opacity-90 cursor-pointer hover:opacity-100 transition-opacity">
+                    CC
+                  </div>
+                </div>
+                <div className="flex items-center gap-6">
+                  <Settings className="h-5 w-5 opacity-90 cursor-pointer hover:opacity-100 transition-opacity" />
+                  <Maximize2 className="h-5 w-5 opacity-90 cursor-pointer hover:opacity-100 transition-opacity" />
+                </div>
+              </div>
             </div>
           </div>
         </div>
       </div>
 
+      {/* 2. Content Details Card */}
       <div className="bg-white rounded-[16px] border border-grayScale-50 shadow-sm overflow-hidden">
         <div className="px-8 py-5 border-b border-grayScale-50 flex items-center justify-between bg-white">
           <h3 className="text-[16px] font-bold text-grayScale-900">
-            Content details
+            Content Details
           </h3>
           <button
-            type="button"
             onClick={prevStep}
             className="flex items-center gap-2 text-brand-500 font-bold text-sm hover:opacity-80 transition-opacity"
           >
@@ -171,29 +90,70 @@ export function ReviewPublishStep({
         </div>
 
         <div className="p-8 space-y-10">
-          <div className="space-y-2">
-            <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-              Title
-            </span>
-            <p className="text-[15px] font-medium text-grayScale-900">
-              {formData.title || "—"}
-            </p>
+          {/* Metadata Grid */}
+          <div className="grid grid-cols-1 md:grid-cols-4 gap-8">
+            <div className="space-y-2">
+              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
+                TITLE
+              </span>
+              <p className="text-[15px] font-medium text-grayScale-900">
+                {formData.title || "Introduction to Past Tense"}
+              </p>
+            </div>
+
+            <div className="space-y-2">
+              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
+                ASSIGNED MODULE
+              </span>
+              <div className="flex items-center gap-2">
+                <Layout className="h-4 w-4 text-grayScale-400" />
+                <p className="text-[14px] font-medium text-grayScale-700">
+                  Grammar Basics - Level 1
+                </p>
+              </div>
+            </div>
+
+            <div className="space-y-2">
+              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
+                TEACHER NAME
+              </span>
+              <p className="text-[15px] font-medium text-grayScale-600">
+                Abebe Kebede
+              </p>
+            </div>
+
+            <div className="space-y-2">
+              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
+                FILE SIZE
+              </span>
+              <div className="flex items-baseline gap-1.5">
+                <span className="text-[15px] font-bold text-grayScale-900">
+                  245 MB
+                </span>
+                <span className="text-[13px] text-grayScale-400 font-medium">
+                  (1080p MP4)
+                </span>
+              </div>
+            </div>
           </div>
 
+          {/* Description Section */}
           <div className="space-y-3">
             <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-              Description
+              DESCRIPTION
             </span>
             <div
-              className="text-[14px] text-grayScale-600 leading-relaxed max-w-4xl"
+              className="text-[14px] text-grayScale-600  leading-relaxed max-w-4xl"
               dangerouslySetInnerHTML={{
                 __html:
-                  formData.description || "<p class='text-grayScale-400'>—</p>",
+                  formData.description ||
+                  "This video covers the fundamental rules of forming the past tense in English, focusing on regular verbs ending in -ed. Suitable for beginners. Includes examples and common pitfalls.",
               }}
             />
           </div>
         </div>
 
+        {/* Gradient Divider */}
         <div className="relative">
           <div
             className="absolute inset-0 flex items-center"
@@ -204,17 +164,18 @@ export function ReviewPublishStep({
           <div className="relative flex justify-center">
             <div
               className="h-[0.5px] w-full opacity-20 rounded-full"
-              style={{ background: "gray" }}
+              style={{
+                background: "gray",
+              }}
             />
           </div>
         </div>
 
+        {/* 3. Normal Footer (Inside Card) */}
         <div className="px-8 py-6 border-t border-grayScale-50 flex items-center justify-between bg-white">
           <Button
-            type="button"
             variant="outline"
             onClick={prevStep}
-            disabled={publishing}
             className="h-10 px-8 rounded-xl border-grayScale-200 font-bold text-grayScale-600 hover:bg-grayScale-50 transition-all shadow-sm"
           >
             Back
@@ -222,24 +183,17 @@ export function ReviewPublishStep({
 
           <div className="flex items-center gap-4">
             <Button
-              type="button"
               variant="outline"
               className="h-12 px-8 rounded-[6px] border-grayScale-100 font-bold text-grayScale-600 hover:bg-grayScale-50 transition-all shadow-sm"
-              disabled={publishing}
-              onClick={() =>
-                toast.info("Drafts are not supported yet. Use Create lesson.")
-              }
             >
-              Save as draft
+              Save as Draft
             </Button>
             <Button
-              type="button"
-              onClick={onPublish}
-              disabled={publishing}
-              className="h-10 px-10 rounded-[6px] bg-brand-500 font-bold text-white  shadow-brand-500/20 transition-all flex items-center gap-2.5 disabled:opacity-60"
+              onClick={() => setIsPublished(true)}
+              className="h-10 px-10 rounded-[6px] bg-brand-500 font-bold text-white  shadow-brand-500/20 transition-all flex items-center gap-2.5"
             >
               <Rocket className="h-4 w-4" />
-              {publishing ? "Creating…" : "Create lesson"}
+              Publish Now
             </Button>
           </div>
         </div>

src/pages/content-management/components/video-steps/VideoDetailStep.tsx

@@ -1,36 +1,32 @@
+import { useRef, useEffect } from "react";
 import {
-  useRef,
-  useEffect,
-  type Dispatch,
-  type SetStateAction,
-} from "react";
-import { List, Link as LinkIcon, Lightbulb, ArrowRight } from "lucide-react";
-import { toast } from "sonner";
+  Video,
+  List,
+  Link as LinkIcon,
+  Lightbulb,
+  ChevronRight,
+  ImageIcon,
+  ArrowRight,
+} from "lucide-react";
 import { Button } from "../../../../components/ui/button";
 import { Input } from "../../../../components/ui/input";
-import type { AddLessonFormData } from "../../AddVideoFlow";
-import { LessonMediaUploadField } from "../LessonMediaUploadField";
-
-function isDescriptionEmpty(raw: string): boolean {
-  if (!raw?.trim()) return true;
-  const t = raw.replace(/<[^>]+>/g, "").replace(/&nbsp;/g, " ").trim();
-  return t.length === 0;
-}
+import { Select } from "../../../../components/ui/select";
 
 interface VideoDetailStepProps {
-  formData: AddLessonFormData;
-  setFormData: Dispatch<SetStateAction<AddLessonFormData>>;
-  onContinue: () => void;
+  formData: any;
+  setFormData: (data: any) => void;
+  nextStep: () => void;
 }
 
 export function VideoDetailStep({
   formData,
   setFormData,
-  onContinue,
+  nextStep,
 }: VideoDetailStepProps) {
   const editorRef = useRef<HTMLDivElement>(null);
   const isInternalChange = useRef(false);
 
+  // Initialize editor content only once or when needed from outside
   useEffect(() => {
     if (editorRef.current && !isInternalChange.current) {
       editorRef.current.innerHTML = formData.description || "";
@@ -45,10 +41,8 @@ export function VideoDetailStep({
   const syncState = () => {
     if (editorRef.current) {
       isInternalChange.current = true;
-      setFormData((prev) => ({
-        ...prev,
-        description: editorRef.current!.innerHTML,
-      }));
+      setFormData({ ...formData, description: editorRef.current.innerHTML });
+      // Reset after a short delay to allow exterior updates if any (e.g., from step change)
       setTimeout(() => {
         isInternalChange.current = false;
       }, 0);
@@ -59,57 +53,50 @@ export function VideoDetailStep({
     syncState();
   };
 
-  const handleContinue = () => {
-    if (editorRef.current) {
-      setFormData((prev) => ({
-        ...prev,
-        description: editorRef.current!.innerHTML,
-      }));
-    }
-    if (!formData.title.trim()) {
-      toast.error("Title is required");
-      return;
-    }
-    if (!formData.videoUrl.trim()) {
-      toast.error("Add a video URL or upload a video");
-      return;
-    }
-    if (!formData.thumbnailUrl.trim()) {
-      toast.error("Add a thumbnail or upload an image");
-      return;
-    }
-    const descHtml = editorRef.current?.innerHTML ?? formData.description;
-    if (isDescriptionEmpty(descHtml)) {
-      toast.error("Description is required");
-      return;
-    }
-    onContinue();
-  };
-
   return (
     <div className="animate-in fade-in slide-in-from-bottom-4 duration-700 max-w-[1200px] mx-auto pb-20">
+      {/* Single Unified Card for Everything */}
       <div className="bg-white rounded-[24px] border border-grayScale-50 p-10 shadow-sm space-y-8">
-        <div className="space-y-3">
+        {/* 1. Upload Video Section */}
+        <div className="space-y-6">
           <h3 className="text-[20px] font-bold text-grayScale-900 ml-1">
-            Video
+            Upload Video
           </h3>
-          <p className="text-sm text-grayScale-500 ml-1 max-w-2xl">
-            Upload a file or paste a link (Vimeo, hosted file, etc.). Files are
-            sent to your storage via{" "}
-            <code className="rounded bg-grayScale-100 px-1 text-[11px]">
-              POST /files/upload
-            </code>
-            .
-          </p>
-          <LessonMediaUploadField
-            kind="video"
-            value={formData.videoUrl}
-            onChange={(v) =>
-              setFormData((prev) => ({ ...prev, videoUrl: v }))
-            }
-          />
-        </div>
+          <div className="relative group cursor-pointer">
+            <div className="flex flex-col items-center justify-center rounded-[20px] border-2 border-dashed border-[#E2E8F0] bg-[#F8FAFC]/30 p-14 transition-all hover:border-brand-200 hover:bg-brand-50/5">
+              <div className="h-16 w-16 rounded-full bg-white shadow-sm flex items-center justify-center mb-6">
+                <div className="h-10 w-10 rounded-full bg-[#FAF5FF] flex items-center justify-center">
+                  <div className="h-6 w-6 relative flex items-center justify-center">
+                    <div className="absolute inset-0 bg-brand-500/10 rounded-full blur-sm" />
+                    <Video className="h-5 w-5 text-brand-500 relative" />
+                  </div>
+                </div>
+              </div>
+              <h4 className="text-[17px]  text-grayScale-900 mb-2">
+                Drag and drop video files here
+              </h4>
+              <p className="text-grayScale-400 font-medium text-[13px] mb-8">
+                MP4, MOV, WebM. Max size 2GB.
+              </p>
 
+              <div className="flex items-center gap-4 w-full max-w-[200px] mb-8">
+                <div className="flex-1 h-[1px] bg-grayScale-200" />
+                <span className="text-[12px] font-bold text-grayScale-300 uppercase tracking-widest">
+                  OR
+                </span>
+                <div className="flex-1 h-[1px] bg-grayScale-200" />
+              </div>
+
+              <Button
+                variant="outline"
+                className="h-11 px-8 rounded-xl border-grayScale-200 bg-white font-bold text-brand-500 hover:border-brand-500 hover:bg-brand-50 transition-all shadow-sm text-sm"
+              >
+                Browse Files
+              </Button>
+            </div>
+          </div>
+        </div>
+        {/* Gradient Divider */}
         <div className="relative">
           <div
             className="absolute inset-0 flex items-center"
@@ -120,57 +107,75 @@ export function VideoDetailStep({
           <div className="relative flex justify-center">
             <div
               className="h-[0.5px] w-full opacity-20 rounded-full"
-              style={{ background: "gray" }}
+              style={{
+                background: "gray",
+              }}
             />
           </div>
         </div>
 
+        {/* 2. Form & Side Panel Grid */}
         <div className="flex flex-col lg:flex-row gap-12 items-start">
+          {/* Left Column: Title, Order, Description */}
           <div className="flex-1 w-full space-y-10">
             <div className="space-y-3">
               <label className="text-[14px] font-medium text-grayScale-900 ml-1">
-                Lesson title
+                Video Title
               </label>
               <Input
-                placeholder="e.g. Introduction to Past Tense"
+                placeholder="e.g., Introduction to Past Tense Verbs"
                 className="h-12 rounded-xl border-grayScale-200 bg-white px-6 text-[15px] text-grayScale-800 placeholder:text-grayScale-500 focus:border-brand-500 font-medium transition-all shadow-sm"
                 value={formData.title}
                 onChange={(e) =>
-                  setFormData((prev) => ({ ...prev, title: e.target.value }))
+                  setFormData({ ...formData, title: e.target.value })
                 }
               />
             </div>
 
+            <div className="space-y-3">
+              <label className="text-[14px] font-medium text-grayScale-900 ml-1">
+                Video Order
+              </label>
+              <Select
+                className="h-12 rounded-xl border-grayScale-200 bg-white px-6 text-[15px] text-grayScale-800 font-medium cursor-pointer focus:border-brand-500 shadow-sm"
+                value={formData.order}
+                onChange={(e) =>
+                  setFormData({ ...formData, order: (e.target as any).value })
+                }
+              >
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+              </Select>
+            </div>
+
             <div className="space-y-3">
               <label className="text-[14px] font-medium text-grayScale-900 ml-1">
                 Description
               </label>
               <div className="rounded-xl border border-grayScale-200 bg-white overflow-hidden flex flex-col min-h-[200px] shadow-sm focus-within:border-brand-200 transition-all">
+                {/* Toolbar */}
                 <div className="flex items-center gap-1  bg-[#F8FAFC]">
                   <div className="flex items-center gap-1 w-fit bg-transparent px-2 py-1 rounded-lg">
                     <button
-                      type="button"
                       onClick={() => handleCommand("bold")}
                       className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all font-serif font-bold text-[17px] pb-0.5 active:bg-grayScale-50"
                     >
                       B
                     </button>
                     <button
-                      type="button"
                       onClick={() => handleCommand("italic")}
                       className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all font-serif italic text-[17px] pr-0.5 active:bg-grayScale-50"
                     >
                       I
                     </button>
                     <button
-                      type="button"
                       onClick={() => handleCommand("insertUnorderedList")}
                       className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all active:bg-grayScale-50"
                     >
                       <List className="h-5 w-5" />
                     </button>
                     <button
-                      type="button"
                       onClick={() => {
                         const url = prompt("Enter URL:");
                         if (url) handleCommand("createLink", url);
@@ -183,9 +188,12 @@ export function VideoDetailStep({
                 </div>
 
                 <div className="relative p-6 flex-1">
-                  {isDescriptionEmpty(formData.description) && (
+                  {(!formData.description ||
+                    formData.description === "<br>" ||
+                    formData.description === "" ||
+                    formData.description === "<div><br></div>") && (
                     <div className="absolute top-6 left-6 text-grayScale-300 font-medium text-[15px] pointer-events-none">
-                      What will students learn in this lesson?
+                      Provide a brief summary of what the student will learn...
                     </div>
                   )}
                   <div
@@ -199,44 +207,59 @@ export function VideoDetailStep({
             </div>
           </div>
 
-          <div className="w-full lg:w-[360px] space-y-5">
-            <LessonMediaUploadField
-              kind="thumbnail"
-              value={formData.thumbnailUrl}
-              onChange={(v) =>
-                setFormData((prev) => ({ ...prev, thumbnailUrl: v }))
-              }
-            />
+          {/* Right Column: Thumbnail, Pro Tip */}
+          <div className="w-full lg:w-[320px] space-y-5">
+            {/* Thumbnail Section */}
+            <div className="space-y-4">
+              <div className="space-y-1 ml-1">
+                <h3 className="text-[14px] font-medium text-grayScale-900">
+                  Thumbnail
+                </h3>
+                <p className="text-[12px] text-grayScale-400 font-medium leading-relaxed">
+                  Upload your video thumbnail. 1280×720px recommended.
+                </p>
+              </div>
+              <div className="relative group cursor-pointer aspect-video">
+                <div className="h-full w-full flex flex-col items-center justify-center rounded-xl border-2 border-dashed border-grayScale-200 bg-[#F8FAFC]/50 p-6 transition-all group-hover:border-brand-200">
+                  <div className="h-10 w-10 flex items-center justify-center mb-3">
+                    <ImageIcon className="h-7 w-7 text-grayScale-400" />
+                  </div>
+                  <p className="text-[13px] font-bold text-brand-400">
+                    Click to upload
+                  </p>
+                </div>
+              </div>
+            </div>
+
+            {/* Pro Tip Section */}
             <div className="bg-brand-500/5 flex items-start gap-3 rounded-xl border border-[#F3E8FF] p-6 space-y-3">
               <div className="flex items-center gap-3">
                 <div className="h-8 w-8 flex-shrink-0 flex items-center justify-center">
-                  <Lightbulb
-                    className="h-4 w-4 text-brand-50"
-                    fill="#A855F7"
-                  />
+                  <Lightbulb className="h-4 w-4 text-brand-50" fill="#A855F7" />
                 </div>
               </div>
               <div className="relative top-[-10px]">
                 <h3 className="text-[14px] font-bold text-grayScale-900">
-                  Pro tip
+                  Pro Tip
                 </h3>
                 <p className="text-[12px] text-grayScale-700 font-medium leading-relaxed">
-                  Use clear titles and a thumbnail that matches the lesson. The
-                  lesson is created with{" "}
-                  <code className="rounded bg-white/80 px-1 text-[10px]">
-                    POST /modules/:moduleId/lessons
-                  </code>{" "}
-                  when you publish.
+                  Short, descriptive titles work best. Include keywords like
+                  "Grammar" or "Vocabulary" to help students find your content.
                 </p>
               </div>
             </div>
           </div>
         </div>
 
-        <div className="pt-5 border-t border-grayScale-200 flex items-center justify-end">
+        {/* Footer (Inside Card Container) */}
+        <div className="pt-5 border-t border-grayScale-200 flex items-center justify-between">
+          <div className="flex items-center gap-3">
+            <span className="text-[14px] font-medium text-grayScale-600">
+              Last saved: Just now
+            </span>
+          </div>
           <Button
-            type="button"
-            onClick={handleContinue}
+            onClick={nextStep}
             className="h-10 px-10 rounded-[6px] bg-brand-500 font-bold text-white transition-all flex items-center gap-2 text-sm group active:scale-95"
           >
             Continue

src/pages/issues/IssuesPage.tsx

@@ -95,13 +95,12 @@ function getStatusConfig(status: string): {
   }
 }
 
-function getIssueTypeConfig(type: string | null | undefined): {
+function getIssueTypeConfig(type: string): {
   label: string;
   classes: string;
   icon: typeof Bug;
 } {
-  const t = String(type ?? "").trim();
-  switch (t) {
+  switch (type) {
     case "bug":
       return {
         label: "Bug",
@@ -134,7 +133,7 @@ function getIssueTypeConfig(type: string | null | undefined): {
       };
     default:
       return {
-        label: t ? t.charAt(0).toUpperCase() + t.slice(1) : "Other",
+        label: type.charAt(0).toUpperCase() + type.slice(1),
         classes: "bg-grayScale-100 text-grayScale-600 border-grayScale-200",
         icon: HelpCircle,
       };
@@ -174,10 +173,8 @@ function getRelativeTime(dateStr: string): string {
   return formatDate(dateStr);
 }
 
-function formatRoleLabel(role: string | null | undefined): string {
-  const r = String(role ?? "").trim();
-  if (!r) return "—";
-  return r
+function formatRoleLabel(role: string): string {
+  return role
     .split("_")
     .map((w) => w.charAt(0).toUpperCase() + w.slice(1).toLowerCase())
     .join(" ");
@@ -224,9 +221,8 @@ export function IssuesPage() {
         offset: (page - 1) * pageSize,
       };
       const res = await getIssues(filters);
-      const payload = res.data?.data;
-      setIssues(Array.isArray(payload?.issues) ? payload.issues : []);
-      setTotalCount(typeof payload?.total_count === "number" ? payload.total_count : 0);
+      setIssues(res.data.data.issues);
+      setTotalCount(res.data.data.total_count);
     } catch (error) {
       console.error("Failed to fetch issues:", error);
       setIssues([]);
@@ -245,7 +241,7 @@ export function IssuesPage() {
     setDetailLoading(true);
     try {
       const res = await getIssueById(issueId);
-      setSelectedIssue(res.data?.data ?? null);
+      setSelectedIssue(res.data.data);
     } catch (error) {
       console.error("Failed to fetch issue detail:", error);
     } finally {
@@ -309,15 +305,16 @@ export function IssuesPage() {
   };
 
   // Client-side filtering (status, type, search)
-  const filteredIssues = (Array.isArray(issues) ? issues : []).filter((issue) => {
+  const filteredIssues = issues.filter((issue) => {
     if (statusFilter && issue.status !== statusFilter) return false;
     if (typeFilter && issue.issue_type !== typeFilter) return false;
     if (searchQuery) {
       const q = searchQuery.toLowerCase();
-      const subject = String(issue.subject ?? "").toLowerCase();
-      const description = String(issue.description ?? "").toLowerCase();
-      const issueType = String(issue.issue_type ?? "").toLowerCase();
-      return subject.includes(q) || description.includes(q) || issueType.includes(q);
+      return (
+        issue.subject.toLowerCase().includes(q) ||
+        issue.description.toLowerCase().includes(q) ||
+        issue.issue_type.toLowerCase().includes(q)
+      );
     }
     return true;
   });
@@ -540,10 +537,10 @@ export function IssuesPage() {
                         </div>
                         <div className="min-w-0">
                           <p className="text-sm font-medium text-grayScale-600 truncate">
-                            {issue.subject?.trim() ? issue.subject : "—"}
+                            {issue.subject}
                           </p>
                           <p className="text-xs text-grayScale-400 truncate mt-0.5">
-                            {issue.description?.trim() ? issue.description : "No description"}
+                            {issue.description}
                           </p>
                         </div>
                       </div>
@@ -575,9 +572,6 @@ export function IssuesPage() {
                               {getStatusConfig(s).label}
                             </option>
                           ))}
-                          {!STATUSES.includes(issue.status as (typeof STATUSES)[number]) && issue.status ? (
-                            <option value={issue.status}>{getStatusConfig(issue.status).label}</option>
-                          ) : null}
                         </select>
                         <ChevronDown className="absolute right-2 top-1/2 h-3 w-3 -translate-y-1/2 pointer-events-none opacity-50" />
                       </div>

src/pages/notifications/CreateNotificationPage.tsx

@@ -1,12 +1,11 @@
 import { useEffect, useMemo, useState } from "react"
 import { useNavigate } from "react-router-dom"
-import { Bell, Mail, MailOpen, Megaphone } from "lucide-react"
+import { Bell, Loader2, Mail, MailOpen, Megaphone } from "lucide-react"
 import { Card, CardContent } from "../../components/ui/card"
 import { Button } from "../../components/ui/button"
 import { Input } from "../../components/ui/input"
 import { Textarea } from "../../components/ui/textarea"
 import { FileUpload } from "../../components/ui/file-upload"
-import { SpinnerIcon } from "../../components/ui/spinner-icon"
 import { cn } from "../../lib/utils"
 import { getTeamMembers } from "../../api/team.api"
 import type { TeamMember } from "../../types/team.types"
@@ -283,7 +282,7 @@ export function CreateNotificationPage() {
               >
                 {sending ? (
                   <>
-                    <SpinnerIcon className="mr-2 h-3.5 w-3.5" alt="" />
+                    <Loader2 className="mr-2 h-3.5 w-3.5 animate-spin" />
                     Sending…
                   </>
                 ) : (
@@ -348,7 +347,7 @@ export function CreateNotificationPage() {
                 <div className="max-h-64 space-y-1.5 overflow-y-auto rounded-lg border border-grayScale-100 bg-grayScale-50/60 p-2">
                   {recipientsLoading && (
                     <div className="flex items-center justify-center py-6 text-xs text-grayScale-400">
-                      <SpinnerIcon className="mr-2 h-4 w-4" alt="" />
+                      <Loader2 className="mr-2 h-4 w-4 animate-spin" />
                       Loading users…
                     </div>
                   )}

src/pages/role-management/RolesListPage.tsx

@@ -1,18 +1,8 @@
-import { useCallback, useEffect, useMemo, useState } from "react"
+import { useEffect, useMemo, useState } from "react"
 import { useNavigate } from "react-router-dom"
 import {
-  Plus,
-  Search,
-  Shield,
-  ShieldCheck,
-  ChevronLeft,
-  ChevronRight,
-  AlertCircle,
-  Eye,
-  X,
-  Pencil,
-  Check,
-  Trash2,
+  Plus, Search, Shield, ShieldCheck, ChevronLeft, ChevronRight,
+  AlertCircle, Eye, X, Pencil, Check,
 } from "lucide-react"
 import { Button } from "../../components/ui/button"
 import { Card, CardContent } from "../../components/ui/card"
@@ -22,14 +12,7 @@ import { Textarea } from "../../components/ui/textarea"
 import {
   Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription,
 } from "../../components/ui/dialog"
-import {
-  getRoles,
-  getRoleDetail,
-  getAllPermissions,
-  setRolePermissions,
-  updateRole,
-  deleteRole,
-} from "../../api/rbac.api"
+import { getRoles, getRoleDetail, getAllPermissions, setRolePermissions, updateRole } from "../../api/rbac.api"
 import type { Role, RoleDetail, RolePermission } from "../../types/rbac.types"
 import { cn } from "../../lib/utils"
 import { toast } from "sonner"
@@ -53,11 +36,6 @@ export function RolesListPage() {
   const [detailOpen, setDetailOpen] = useState(false)
   const [detailLoading, setDetailLoading] = useState(false)
 
-  // Delete modal state
-  const [deleteDialogOpen, setDeleteDialogOpen] = useState(false)
-  const [roleToDelete, setRoleToDelete] = useState<Role | null>(null)
-  const [deleteLoading, setDeleteLoading] = useState(false)
-
   // Role info editing state
   const [editingRole, setEditingRole] = useState(false)
   const [editName, setEditName] = useState("")
@@ -81,28 +59,27 @@ export function RolesListPage() {
     return () => clearTimeout(timer)
   }, [query])
 
-  const fetchRoles = useCallback(async () => {
-    setLoading(true)
-    setError(null)
-    try {
-      const res = await getRoles({
-        query: debouncedQuery || undefined,
-        page,
-        page_size: pageSize,
-      })
-      setRoles(res.data.data.roles ?? [])
-      setTotal(res.data.data.total ?? 0)
-    } catch {
-      setError("Failed to load roles.")
-    } finally {
-      setLoading(false)
-    }
-  }, [debouncedQuery, page, pageSize])
-
   // Fetch roles
   useEffect(() => {
+    const fetchRoles = async () => {
+      setLoading(true)
+      setError(null)
+      try {
+        const res = await getRoles({
+          query: debouncedQuery || undefined,
+          page,
+          page_size: pageSize,
+        })
+        setRoles(res.data.data.roles ?? [])
+        setTotal(res.data.data.total ?? 0)
+      } catch {
+        setError("Failed to load roles.")
+      } finally {
+        setLoading(false)
+      }
+    }
     fetchRoles()
-  }, [fetchRoles])
+  }, [debouncedQuery, page, pageSize])
 
   // Open role detail
   const handleViewRole = async (roleId: number) => {
@@ -120,45 +97,6 @@ export function RolesListPage() {
     }
   }
 
-  const handleDeleteRoleClick = (role: Role) => {
-    setRoleToDelete(role)
-    setDeleteDialogOpen(true)
-  }
-
-  const handleCancelDeleteRole = () => {
-    setDeleteDialogOpen(false)
-    setRoleToDelete(null)
-  }
-
-  const handleConfirmDeleteRole = async () => {
-    if (!roleToDelete) return
-    setDeleteLoading(true)
-    try {
-      const res = await deleteRole(roleToDelete.id)
-      toast.success(res.data.message ?? "Role deleted successfully")
-
-      // Close dialogs if the deleted role is currently opened.
-      if (selectedRole?.id === roleToDelete.id) {
-        setDetailOpen(false)
-        setSelectedRole(null)
-        setEditingPermissions(false)
-        setEditingRole(false)
-        setPermSearch("")
-      }
-
-      setRoleToDelete(null)
-      setDeleteDialogOpen(false)
-      await fetchRoles()
-    } catch (err: unknown) {
-      const message =
-        (err as { response?: { data?: { message?: string } } })?.response?.data?.message ??
-        "Failed to delete role."
-      toast.error(message)
-    } finally {
-      setDeleteLoading(false)
-    }
-  }
-
   // Enter role info edit mode
   const handleEditRole = () => {
     if (!selectedRole) return
@@ -364,7 +302,7 @@ export function RolesListPage() {
               {roles.map((role) => (
                 <Card
                   key={role.id}
-                  className="overflow-hidden border border-grayScale-100 shadow-sm transition-all hover:-translate-y-0.5 hover:shadow-md"
+                  className="overflow-hidden shadow-sm transition-shadow hover:shadow-md"
                 >
                   <div
                     className={cn(
@@ -374,7 +312,7 @@ export function RolesListPage() {
                         : "bg-gradient-to-r from-brand-500 to-brand-600",
                     )}
                   />
-                  <CardContent className="space-y-4 p-5">
+                  <CardContent className="p-5">
                     <div className="flex items-start justify-between gap-3">
                       <div className="flex items-center gap-2.5">
                         <div
@@ -392,63 +330,32 @@ export function RolesListPage() {
                           )}
                         </div>
                         <div>
-                          <h3 className="text-sm font-semibold uppercase tracking-wide text-grayScale-700">
-                            {role.name}
-                          </h3>
-                          <p className="mt-0.5 text-xs text-grayScale-500 line-clamp-2">
-                            {role.description?.trim() || "No description provided for this role."}
+                          <h3 className="text-sm font-semibold text-grayScale-700">{role.name}</h3>
+                          <p className="mt-0.5 text-xs text-grayScale-400 line-clamp-1">
+                            {role.description}
                           </p>
                         </div>
                       </div>
-                      <Badge
-                        variant={role.is_system ? "warning" : "outline"}
-                        className="shrink-0 text-[10px]"
-                      >
-                        {role.is_system ? "System" : "Custom"}
-                      </Badge>
+                      {role.is_system && (
+                        <Badge variant="warning" className="shrink-0 text-[10px]">
+                          System
+                        </Badge>
+                      )}
                     </div>
 
-                    <div className="grid grid-cols-2 gap-2 rounded-xl border border-grayScale-100 bg-grayScale-50/70 p-2.5 text-[11px]">
-                      <div>
-                        <p className="text-grayScale-400">Role ID</p>
-                        <p className="font-semibold text-grayScale-700">#{role.id}</p>
-                      </div>
-                      <div>
-                        <p className="text-grayScale-400">Created</p>
-                        <p className="font-semibold text-grayScale-700">
-                          {new Date(role.created_at).toLocaleDateString()}
-                        </p>
-                      </div>
-                    </div>
-
-                    <div className="flex items-center justify-between">
+                    <div className="mt-4 flex items-center justify-between">
                       <span className="text-[11px] text-grayScale-400">
-                        Open details to view permissions
+                        Created {new Date(role.created_at).toLocaleDateString()}
                       </span>
-                      <div className="flex items-center gap-2">
-                        {!role.is_system && (
-                          <Button
-                            type="button"
-                            variant="destructive"
-                            size="icon"
-                            className="h-8 w-8"
-                            onClick={() => handleDeleteRoleClick(role)}
-                            disabled={deleteLoading}
-                            aria-label={`Delete role ${role.name}`}
-                          >
-                            <Trash2 className="h-4 w-4" />
-                          </Button>
-                        )}
-                        <Button
-                          variant="outline"
-                          size="sm"
-                          className="h-8 gap-1.5 text-xs"
-                          onClick={() => handleViewRole(role.id)}
-                        >
-                          <Eye className="h-3.5 w-3.5" />
-                          View
-                        </Button>
-                      </div>
+                      <Button
+                        variant="outline"
+                        size="sm"
+                        className="h-8 gap-1.5 text-xs"
+                        onClick={() => handleViewRole(role.id)}
+                      >
+                        <Eye className="h-3.5 w-3.5" />
+                        View
+                      </Button>
                     </div>
                   </CardContent>
                 </Card>
@@ -782,55 +689,6 @@ export function RolesListPage() {
           )}
         </DialogContent>
       </Dialog>
-
-      {/* Delete role dialog */}
-      <Dialog
-        open={deleteDialogOpen}
-        onOpenChange={(open) => {
-          setDeleteDialogOpen(open)
-          if (!open) handleCancelDeleteRole()
-        }}
-      >
-        <DialogContent className="max-w-sm">
-          <DialogHeader>
-            <DialogTitle className="flex items-center gap-2 text-red-600">
-              <Trash2 className="h-5 w-5" />
-              Delete Role
-            </DialogTitle>
-            <DialogDescription>
-              Are you sure you want to delete this role? This action cannot be undone.
-            </DialogDescription>
-          </DialogHeader>
-
-          {roleToDelete && (
-            <div className="rounded-lg bg-red-50 border border-red-100 p-3">
-              <p className="text-sm font-medium text-red-700">{roleToDelete.name}</p>
-              <p className="text-xs text-red-500 mt-0.5">Role #{roleToDelete.id}</p>
-            </div>
-          )}
-
-          <div className="flex justify-end gap-2 pt-2">
-            <Button
-              variant="outline"
-              size="sm"
-              onClick={handleCancelDeleteRole}
-              disabled={deleteLoading}
-            >
-              Cancel
-            </Button>
-            <Button
-              variant="destructive"
-              size="sm"
-              className="gap-1.5"
-              disabled={deleteLoading || !roleToDelete}
-              onClick={handleConfirmDeleteRole}
-            >
-              {deleteLoading ? <SpinnerIcon className="h-3.5 w-3.5" /> : <Trash2 className="h-3.5 w-3.5" />}
-              {deleteLoading ? "Deleting..." : "Delete"}
-            </Button>
-          </div>
-        </DialogContent>
-      </Dialog>
     </div>
   )
 }

src/types/course.types.ts

@@ -45,7 +45,6 @@ export interface GetCoursesResponse {
 
 export interface CreateCourseRequest {
   category_id: number
-  sub_category_id?: number | null
   title: string
   description: string
 }
@@ -57,496 +56,6 @@ export interface UpdateCourseRequest {
   is_active?: boolean
 }
 
-/** Row from GET /programs (e.g. Beginner / Intermediate program buckets) */
-export interface LearningProgramListItem {
-  id: number
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  sort_order: number
-  created_at: string
-}
-
-export interface UpdateLearningProgramRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-export interface CreateLearningProgramRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-export interface CreateLearningProgramResponse {
-  message: string
-  data: LearningProgramListItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetLearningProgramsResponse {
-  message: string
-  data: {
-    programs: LearningProgramListItem[]
-    total_count: number
-    limit?: number
-    offset?: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /programs/:program_id/courses */
-export interface ProgramCourseListItem {
-  id: number
-  program_id: number
-  name: string
-  description: string
-  sort_order: number
-  created_at: string
-  thumbnail?: string | null
-  /** Some list endpoints may expose the image as `thumbnail_url` instead. */
-  thumbnail_url?: string | null
-  /** GET /programs/:id/courses aggregates. */
-  module_count?: number
-  lesson_count?: number
-  practice_count?: number
-  /** Legacy aggregate field names; prefer module_count, lesson_count, practice_count. */
-  modules_count?: number
-  videos_count?: number
-  practices_count?: number
-}
-
-/** Body for PUT /courses/:id (program-linked Learn English courses). */
-export interface UpdateTopLevelCourseRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-/** Body for POST /programs/:program_id/courses */
-export interface CreateProgramCourseRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-export interface CreateProgramCourseResponse {
-  message: string
-  data: ProgramCourseListItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Exam prep catalog course row (e.g. IELTS / DET cards) */
-export interface ExamPrepCatalogCourseItem {
-  id: number
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  sort_order?: number
-  units_count?: number
-  modules_count?: number
-  lessons_count?: number
-  created_at?: string
-  updated_at?: string
-}
-
-export interface CreateExamPrepCatalogCourseRequest {
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-}
-
-export interface CreateExamPrepCatalogCourseResponse {
-  message: string
-  data: ExamPrepCatalogCourseItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetExamPrepCatalogCoursesResponse {
-  message: string
-  data: {
-    offset: number
-    limit: number
-    total_count: number
-    catalog_courses: ExamPrepCatalogCourseItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface UpdateExamPrepCatalogCourseRequest {
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  sort_order: number
-}
-
-export interface UpdateExamPrepCatalogCourseResponse {
-  message: string
-  data: ExamPrepCatalogCourseItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface ExamPrepCatalogUnitItem {
-  id: number
-  catalog_course_id: number
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  sort_order?: number
-  modules_count?: number
-  lessons_count?: number
-  videos_count?: number
-  practices_count?: number
-  created_at?: string
-  updated_at?: string
-}
-
-export interface CreateExamPrepCatalogUnitRequest {
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-}
-
-export interface CreateExamPrepCatalogUnitResponse {
-  message: string
-  data: ExamPrepCatalogUnitItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface UpdateExamPrepCatalogUnitRequest {
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  sort_order: number
-}
-
-export interface UpdateExamPrepCatalogUnitResponse {
-  message: string
-  data: ExamPrepCatalogUnitItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetExamPrepCatalogUnitsResponse {
-  message: string
-  data: {
-    offset: number
-    limit: number
-    total_count: number
-    units: ExamPrepCatalogUnitItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface ExamPrepUnitModuleItem {
-  id: number
-  unit_id: number
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  icon?: string | null
-  sort_order?: number
-  lessons_count?: number
-  videos_count?: number
-  practices_count?: number
-  created_at?: string
-  updated_at?: string
-}
-
-export interface CreateExamPrepUnitModuleRequest {
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  icon?: string | null
-}
-
-export interface CreateExamPrepUnitModuleResponse {
-  message: string
-  data: ExamPrepUnitModuleItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface UpdateExamPrepUnitModuleRequest {
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  icon?: string | null
-  sort_order: number
-}
-
-export interface UpdateExamPrepUnitModuleResponse {
-  message: string
-  data: ExamPrepUnitModuleItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetExamPrepUnitModulesResponse {
-  message: string
-  data: {
-    offset: number
-    limit: number
-    total_count: number
-    modules: ExamPrepUnitModuleItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface ExamPrepModuleLessonItem {
-  id: number
-  unit_module_id: number
-  title: string
-  video_url: string
-  thumbnail?: string | null
-  description?: string | null
-  sort_order?: number
-  created_at?: string
-  updated_at?: string
-}
-
-export interface CreateExamPrepModuleLessonRequest {
-  title: string
-  video_url: string
-  thumbnail?: string | null
-  description?: string | null
-}
-
-export interface CreateExamPrepModuleLessonResponse {
-  message: string
-  data: ExamPrepModuleLessonItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface UpdateExamPrepModuleLessonRequest {
-  title: string
-  video_url?: string | null
-  thumbnail?: string | null
-  description?: string | null
-  sort_order: number
-}
-
-export interface UpdateExamPrepModuleLessonResponse {
-  message: string
-  data: ExamPrepModuleLessonItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetExamPrepModuleLessonsResponse {
-  message: string
-  data: {
-    lessons: ExamPrepModuleLessonItem[]
-    total_count: number
-    limit: number
-    offset: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetProgramCoursesResponse {
-  message: string
-  data: {
-    total_count: number
-    limit: number
-    offset: number
-    courses: ProgramCourseListItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Row from GET /courses/:courseId/modules (Learn English track). */
-export interface TopLevelCourseModuleItem {
-  id: number
-  program_id: number
-  course_id: number
-  name: string
-  description: string
-  icon?: string | null
-  sort_order: number
-  created_at: string
-}
-
-export interface GetTopLevelCourseModulesResponse {
-  message: string
-  data: {
-    limit: number
-    offset: number
-    modules: TopLevelCourseModuleItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Body for PUT /modules/:id (Learn English top-level modules). */
-export interface UpdateTopLevelCourseModuleRequest {
-  name: string
-  description: string
-  icon: string
-}
-
-/** Body for POST /courses/:courseId/modules */
-export interface CreateTopLevelCourseModuleRequest {
-  name: string
-  description: string
-  icon: string
-}
-
-export interface CreateTopLevelCourseModuleResponse {
-  message: string
-  data: TopLevelCourseModuleItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Row from GET /modules/:moduleId/lessons (Learn English top-level module lessons). */
-export interface TopLevelModuleLessonItem {
-  id: number
-  module_id: number
-  title: string
-  video_url: string
-  thumbnail: string
-  description: string
-  sort_order: number
-  created_at: string
-}
-
-export interface GetTopLevelModuleLessonsResponse {
-  message: string
-  data: {
-    total_count: number
-    limit: number
-    offset: number
-    lessons: TopLevelModuleLessonItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Practice returned by GET /courses|modules|lessons/.../practices (Learn English parent-linked practice). */
-export interface ParentContextPractice {
-  id: number
-  parent_kind: string
-  parent_id: number
-  title: string
-  story_description: string
-  story_image: string
-  question_set_id: number
-  quick_tips: string
-  persona_id?: number | null
-  created_at: string
-}
-
-export interface GetPracticesByParentContextResponse {
-  message: string
-  data: {
-    offset: number
-    limit: number
-    practices: ParentContextPractice[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export type PracticeParentKind = "COURSE" | "MODULE" | "LESSON"
-
-/** POST /practices — create practice linked to a course, module, or lesson (Learn English). */
-export interface CreateParentLinkedPracticeRequest {
-  parent_kind: PracticeParentKind
-  parent_id: number
-  title: string
-  story_description: string
-  story_image: string
-  question_set_id: number
-  quick_tips: string
-  persona_id?: number
-}
-
-export interface CreateParentLinkedPracticeResponse {
-  message: string
-  data: ParentContextPractice
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Body for PUT /practices/:id (Learn English parent-linked practice). */
-export interface UpdateParentLinkedPracticeRequest {
-  title: string
-  story_description: string
-  story_image: string
-  question_set_id: number
-  quick_tips: string
-  persona_id?: number | null
-}
-
-export interface UpdateParentLinkedPracticeResponse {
-  message: string
-  data: ParentContextPractice
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Body for PUT /lessons/:id (Learn English top-level module lessons). */
-export interface UpdateTopLevelModuleLessonRequest {
-  title: string
-  video_url: string
-  thumbnail: string
-  description: string
-}
-
-/** Body for POST /modules/:moduleId/lessons. */
-export interface CreateTopLevelModuleLessonRequest {
-  title: string
-  video_url: string
-  thumbnail: string
-  description: string
-}
-
-export interface CreateTopLevelModuleLessonResponse {
-  message: string
-  data: TopLevelModuleLessonItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
 // ============================================
 // Legacy Types (deprecated - using SubCourse hierarchy now)
 // Keeping for backward compatibility with existing API endpoints
@@ -663,13 +172,7 @@ export interface GetModulesResponse {
 export interface CreateModuleRequest {
   level_id: number
   title: string
-  /** Legacy field kept for backward compatibility. */
-  content?: string
-  /** Preferred field for module detail text. */
-  description?: string
-  icon_url?: string
-  display_order?: number
-  is_active?: boolean
+  content: string
 }
 
 /** @deprecated Use UpdateSubCourseRequest instead */
@@ -689,8 +192,6 @@ export interface UpdateModuleStatusRequest {
 export interface SubCourse {
   id: number
   course_id: number
-  /** Present when derived from course hierarchy rows (levels → modules → sub-modules). */
-  level_id?: number
   module_id?: number
   title: string
   description: string
@@ -1200,72 +701,6 @@ export interface HumanLanguageLesson {
   practices: LearningPathPractice[]
 }
 
-export interface SubModuleLessonDetail {
-  id: number
-  sub_module_id: number
-  display_order: number
-  is_active: boolean
-  created_at: string
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  teaching_text?: string | null
-  teaching_image_url?: string | null
-  teaching_audio_url?: string | null
-  teaching_video_url?: string | null
-}
-
-export interface SubModuleLesson {
-  id: number
-  sub_module_id: number
-  display_order: number
-  is_active: boolean
-  created_at: string
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  teaching_text?: string | null
-  teaching_image_url?: string | null
-  teaching_audio_url?: string | null
-  teaching_video_url?: string | null
-}
-
-export interface GetSubModuleLessonDetailResponse {
-  message: string
-  data: SubModuleLessonDetail
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface UpdateSubModuleLessonRequest {
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  teaching_text?: string | null
-  teaching_image_url?: string | null
-  teaching_audio_url?: string | null
-  teaching_video_url?: string | null
-  display_order: number
-  is_active: boolean
-}
-
-export interface UpdateSubModuleLessonResponse {
-  message: string
-  data: SubModuleLessonDetail
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface GetSubModuleLessonsResponse {
-  message: string
-  data: SubModuleLesson[]
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
 export interface GetHumanLanguageLessonsResponse {
   message: string
   data: {
@@ -1279,209 +714,10 @@ export interface GetHumanLanguageLessonsResponse {
   metadata: unknown
 }
 
-/** Row from GET /course-management/human-language/sub-categories */
-export interface HumanLanguageSubCategoryListItem {
-  id: number
-  category_id: number
-  category_name: string
-  name: string
-  description?: string | null
-  display_order: number
-  is_active: boolean
-  created_at: string
-  /** Present on some payloads; ignore if unused. */
-  total_count?: number
-}
-
-export interface GetHumanLanguageSubCategoriesResponse {
-  message: string
-  data: {
-    sub_categories: HumanLanguageSubCategoryListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/categories/:categoryId/sub-categories */
-export interface CategorySubCategoryListItem {
-  id: number
-  category_id: number
-  category_name: string
-  name: string
-  description?: string | null
-  display_order: number
-  is_active: boolean
-  created_at: string
-  /** Sometimes echoed per row by the API; safe to ignore. */
-  total_count?: number
-}
-
-export interface GetCategorySubCategoriesResponse {
-  message: string
-  data: {
-    sub_categories: CategorySubCategoryListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/sub-categories/:subCategoryId/courses */
-export interface SubCategoryCourseListItem {
-  id: number
-  category_id: number
-  sub_category_id: number
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  intro_video_url?: string | null
-  is_active: boolean
-  total_count?: number
-}
-
-export interface GetSubCategoryCoursesResponse {
-  message: string
-  data: {
-    courses: SubCategoryCourseListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/courses/:courseId/levels or GET /course-management/levels */
-export interface CourseLevelRow {
-  id: number
-  course_id: number
-  cefr_level: string
-  display_order: number
-  is_active: boolean
-  created_at: string
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  total_count?: number
-}
-
-export interface GetCourseLevelsForCourseResponse {
-  message: string
-  data: {
-    levels: CourseLevelRow[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface GetCourseLevelsAllResponse {
-  message: string
-  data: {
-    levels: CourseLevelRow[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface GetCourseLevelByIdResponse {
-  message: string
-  data: CourseLevelRow
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/modules/:moduleId/sub-modules */
-export interface CourseSubModuleListItem {
-  id: number
-  module_id: number
-  title: string
-  description?: string | null
-  display_order: number
-  is_active: boolean
-  created_at: string
-  legacy_sub_course_id?: number | null
-  thumbnail?: string | null
-  tips?: string | null
-  total_count?: number
-}
-
-export interface GetSubModulesByModuleResponse {
-  message: string
-  data: {
-    sub_modules: CourseSubModuleListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/human-language/hierarchy */
-export interface HumanLanguageHierarchyFlatRow {
-  category_id: number
-  category_name: string
-  sub_category_id?: number | null
-  sub_category_name?: string | null
-  course_id?: number | null
-  course_title?: string | null
-}
-
-export interface GetHumanLanguageHierarchyFlatResponse {
-  message: string
-  data: HumanLanguageHierarchyFlatRow[]
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/courses/:courseId/hierarchy */
-export interface CourseHierarchyRow {
-  course_id: number
-  course_title: string
-  level_id?: number | null
-  cefr_level?: string | null
-  level_title?: string | null
-  level_description?: string | null
-  level_thumbnail?: string | null
-  module_id?: number | null
-  module_title?: string | null
-  module_icon_url?: string | null
-  sub_module_id?: number | null
-  sub_module_title?: string | null
-  sub_module_description?: string | null
-  sub_module_thumbnail?: string | null
-  sub_module_tips?: string | null
-  sub_module_display_order?: number | null
-}
-
-export interface GetCourseHierarchyResponse {
-  message: string
-  data: CourseHierarchyRow[]
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
 export interface HumanLanguageSubModule {
   id: number
   title: string
   videos: LearningPathVideo[]
-  lessons?: {
-    id: number
-    question_set_id: number
-    title: string
-    status: string
-    question_count: number
-    display_order: number
-    intro_video_url?: string | null
-  }[]
   practices: LearningPathPractice[]
 }
 
@@ -1492,7 +728,6 @@ export interface HumanLanguageModule {
 }
 
 export interface HumanLanguageLevelTree {
-  level_id?: number
   level: string
   modules: HumanLanguageModule[]
 }

src/types/rbac.types.ts

@@ -60,14 +60,6 @@ export interface CreateRoleResponse {
   metadata: unknown
 }
 
-export interface DeleteRoleResponse {
-  message: string
-  success: boolean
-  status_code: number
-  // Some backends may include extra fields; keep it optional for compatibility.
-  metadata?: unknown
-}
-
 export interface SetRolePermissionsRequest {
   permission_ids: number[]
 }