sanjayguwaju/mernstack-course ? reverse-engineered prompt

Build me a clean starter web app using React and Vite.

I want a simple app that runs fast in the browser, reloads instantly while I edit it, and gives me a good base to start a real project from. Please set up a polished landing page with a friendly layout, a clear heading, some short supporting text, and a couple of buttons or cards so the page doesn’t feel empty. Make it responsive so it still looks good on mobile, and keep the code organized and easy to understand.

Use the existing project setup, make sure it works with the current dev server and build process, and keep the styling modern but simple. If you need to check current React or Vite docs online, go ahead. Also include a small example component or two so I can see how the app is meant to be structured and extend it later.