davidrojom/browserscape — reverse-engineered prompt

Build me a tool called Browserscape that works like caniuse in reverse. I want to paste in a website URL and have it crawl that page plus other pages on the same site, render them in a real browser, collect the CSS that actually gets used, including styles added by JavaScript, and then show me which CSS features are not supported by the browsers I care about.

Please make it usable in three ways, a simple web app with a nice report page, a backend API I can post a URL to, and a CLI that can also scan localhost during development. The report should rank issues by how many users are affected, show which pages and browsers are impacted, filter out harmless fallbacks, and include a one click prompt I can copy into an AI coding tool with the issue, where it appears, what breaks, and a suggested fix.

It should crawl politely, respect robots.txt, and let me control crawl depth and page limits. If you need details, look up current docs online.