pranav-aitha/WhisprDrop ? reverse-engineered prompt

Build me a browser based file sharing app that lets two people send files directly to each other without uploading them to a server. I want the sender to drag in a file, get a share link and a QR code, then the receiver can open the link or scan the QR code to connect. Keep the actual file transfer private and encrypted in the browser so nothing sensitive is stored on the server, and make the file decrypt and download automatically on the other side.

It should feel polished and modern, with a glassy interface, live transfer progress, speed, and ETA, plus a fun animated 3D tunnel style background. I also want a camera based QR scanner in the app, and the transfer should work in real time using peer to peer connections. If you need to, look up the current docs for the browser APIs and make it work in a simple local Node app that I can run and test right away.