vikramchoudhary0141/Mern-frontend-AI ? reverse-engineered prompt

Build me a clean React app in this Vite project that feels like a solid starter frontend for a MERN app.

I want a simple modern landing page with a header, a main content area, and a few reusable sections so I can easily swap in real features later. Make it responsive, easy to read, and polished enough to show off. Use the existing React setup, keep the code organized, and make sure it runs smoothly with the current Vite config and linting.

Please set it up so I can quickly add things like forms, cards, and navigation later without having to rewrite everything. If you need to check current docs online for anything subtle, go ahead.