sharanya1533/shopkart ? reverse-engineered prompt

Build me a simple full stack shopping app where people can browse products, sign up or log in, add items to a cart, and place an order.

I want it to feel like a real online store, with a clean homepage, product listing pages, product details, cart, and a basic checkout flow. Include user authentication, protected pages for logged in users, and a simple backend for storing users, products, and orders. If it makes sense, add a small admin area so products can be created, edited, and removed.

Please make the whole thing work end to end, with the frontend connected to the backend and the data stored properly. Use the project structure that is already here, and look up current docs online if you need to. Keep the UI modern and easy to use, and make sure the app runs without extra manual setup beyond the usual install and start steps.