yuzzothecreator/MERN-Stack-Ecommerce-App ? reverse-engineered prompt

Build me a modern electronics shopping app called Fusion Electronics.

I want people to be able to browse products, search for items, open product details, add things to a cart, and go through a simple checkout flow that confirms the order. Include user sign up and login, form validation, and a clean responsive shopping experience that works well on desktop and mobile. It should also show product recommendations based on similar items, so if someone is looking at one product they see related suggestions too.

Please make it feel like a real ecommerce site with a polished home page, product listing page, cart, and checkout page. Use the same general style throughout, keep the interface simple and modern, and make sure the backend and frontend are wired together so the app actually works end to end. If you need to check current docs for anything, go ahead and look them up online first.