sufyanabusufyan042-source/Register-Login-Project ? reverse-engineered prompt

Build me a simple full stack login and registration app called authbase.

I want a clean dark developer console style frontend with React and Tailwind, and a Node and Express backend with MongoDB. Users should be able to sign up, log in, stay logged in with secure HTTP only cookies, view their profile, update their profile, and log out. Passwords should be hashed properly, and auth should use JWT. Please make it feel polished but minimal, with a strong dark UI, good spacing, and clear form states for loading, success, and errors.

Set it up so the backend runs separately from the frontend, and make sure the main auth flow works end to end. If you need to check current docs for anything, feel free to look them up online. I’d also like the code to be easy to run locally with a simple setup and sensible environment variables for the database and secret key.