spidergroupcm/fashionBD-Client ? reverse-engineered prompt

Build me a modern fashion shopping website for the client side of an e commerce app. I want it to feel clean, stylish, and easy to use on both phone and desktop, with a nice homepage, product browsing, category pages, product details, and a shopping cart that users can update before checkout.

Please include Firebase sign in and sign up so people can log in securely, and make sure the app feels complete enough for a real store demo. Add a simple checkout flow, responsive navigation, and a smooth overall shopping experience. Use the existing project setup and make it polished, with good loading and empty states so it feels professional. If you need current docs or best practices for anything, look them up online first.