:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.game-shell{min-height:100vh;display:grid;place-items:center;background:#050508}.game-canvas{border:2px solid #1a2a3a;border-radius:4px;box-shadow:0 0 40px #00c8ff14,0 0 80px #00000080;max-width:100vw;max-height:100vh}