onoja123/Mobile-experiments ? reverse-engineered prompt

Build me a polished React Native Expo demo that feels like a fun mobile design experiment.

I want a clean app with a stack of cards that you can drag, tap, and expand into a fuller view with smooth springy animations. Make the interactions feel really satisfying, like a premium wallet or card based UI prototype. Add a few small motion details too, like subtle parallax, snap back, and smooth transitions between states.

Keep it simple but impressive, with a nice dark or modern visual style and placeholder content that makes the experience feel real. If there are any current Expo or animation best practices I should use, look them up online if you need to. I mainly want something I can open in Expo and play with right away.