vikas5914/Facebook-Video-Downloader ? reverse-engineered prompt

Build me a simple Facebook video downloader website in PHP with a clean HTML front end.

I want a page where someone can paste a Facebook video link, click download, and then get the available video download options if the link can be processed. Keep the design straightforward and mobile friendly, with a clear input box, a download button, and friendly success or error messages when a link does not work.

If it helps, you can use online docs or an API if that makes the downloader reliable, especially for reel downloads too. Please make the whole thing feel like a real working product, not a demo, and include basic branding, a favicon, and a polished landing page style.

If there are any limits with Facebook links, handle them gracefully and explain what the user should do next.