joker096/neumorphic-ui ? reverse-engineered prompt

Build me a secure messenger called Mess&Anger with a soft neumorphic look, dark and light themes, and a clean responsive layout that works well on desktop and mobile.

I want people to be able to connect directly to each other, send chats privately with end to end encryption, and have the app handle things like secure login, two factor auth, and a signaling server behind the scenes. It should also feel reliable when the connection is weak, save what it can offline, and keep working smoothly in the browser.

Please include an admin area, a reusable embed widget that site owners can add to their own pages, and basic setup for testing and deployment. Make it feel polished, accessible, and security focused, with sensible defaults and a good first run experience. If you need anything unclear, look up the latest docs online and iterate as needed.