Your Online Course Platform, AI-Powered

Build a training portal for a small customer-support team. Trainers create courses, lessons and quizzes; learners resume lessons and see their progress without accessing private trainer controls.

Include these capabilities:
- Course creation with modules and lessons
- Video player with progress tracking
- Quizzes and assessments with scoring
- Student dashboard with enrolled courses
- Certificate generation on completion

Build the complete working project with its routes, data model and interactions. For saved or private data, implement persistence, authentication and server-side permissions. Keep API credentials on the server. For external services, document the required setup and use test mode until real accounts are connected. Do not present a simulated integration as a completed live connection.

Make the interface responsive, with accessible labels, keyboard navigation and visible focus. Include loading, empty, validation and error states. Use clearly labelled sample data, never invented customer testimonials or results. Choose a visual direction suited to this project and keep typography, spacing and controls consistent. Explain how to run, test, export and deploy the source.

Verify this end-to-end flow:
Complete a lesson and quiz, sign out and return. Verify saved progress, scoring and the difference between learner and trainer permissions.