mintdotgg/mint-playground ? reverse-engineered prompt

Build me a polished playground site for a collection of interactive Three.js experiences, like a showcase for different mini worlds and games.

I want a clean landing page that introduces the project and then lets people browse the experiences in a grid of large visual cards, each card showing a title, a short description, and a link to open the demo. Make it feel premium and cinematic, with smooth transitions, responsive layout, and a simple way to jump between experiences. The overall vibe should fit sci fi, sports, fantasy, and arcade style 3D scenes, since the demos include things like combat rosters, vehicle showrooms, editorial galleries, explorable worlds, and score attack games.

If you need to, look up the current docs for Three.js related tooling and follow the patterns that make sense for a modern TypeScript app.