Game Center is built from the logo: a perfect circle, three dots, triangle connections. Everything — colors, motion, cards, lobbies — repeats that hub logic. Dark first, ultra-clean, like Linear + Discord + Steam.
Tokens from design-tokens.css drive every surface. Cyan glow only for live/connected states. Lobby code uses JetBrains Mono. See GOOGLE_OAUTH_SETUP.md for login.
