Priyanshu98156/CareerCatalyst ? reverse-engineered prompt

Build me a simple app called CareerCatalyst that helps someone make a resume and check how well it matches an ATS style job screening system.

I want a clean home page, a login and signup flow, and a place where a user can enter or upload resume details, generate a polished resume, and export it as a PDF or LaTeX file. The app should also score the resume, show how strong it is for ATS screening, and explain what could be improved in plain language. If there is a model or dataset already included, use it to power the scoring and predictions.

Please wire the main pages together so the app feels like one complete product, not separate scripts. If you need current docs for anything, look them up online. Keep the interface simple and easy for a non technical user to follow.