SAGAR-TAMANG/friday.feynmanpi.com — reverse-engineered prompt

Build me a polished landing page for F.R.I.D.A.Y., a Tony Stark style voice AI assistant that lives on your computer. I want it to feel sleek, futuristic, and premium, with a strong hero section, a simple explanation of what Friday is, how it works, some example prompts or use cases, a demo section, and a clear waitlist signup. The page should make people excited to try it, especially Mac and Windows users, and it should be easy to skim.

Please wire the waitlist form up so emails get added to a Resend audience, and make sure the signup flow feels clean and reliable. There is also a download endpoint in the project, so keep that in place even if it is not fully active yet. Use the existing app setup in this repo, keep it ready for deployment on Cloudflare Workers, and make the overall design feel fast and modern. If anything is unclear, look up the current docs and finish it end to end.