:root{--bg: #f0f4ff;--card: #ffffff;--text: #1e293b;--muted: #64748b;--accent: #6366f1;--accent-hover: #5558e3;--shadow: 0 4px 16px rgba(0, 0, 0, .06)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.speed-picker{max-width:900px;margin:0 auto;padding:24px 16px 48px}.home-btn{display:inline-block;padding:8px 18px;background:#e2e8f0;color:var(--text);border-radius:10px;text-decoration:none;font-weight:600;font-size:.95rem;transition:background .15s;margin-bottom:20px}.home-btn:hover{background:#cbd5e1}header{text-align:center;margin-bottom:32px}header h1{font-size:2.2rem;margin-bottom:6px}.subtitle{color:var(--muted);font-size:1.1rem}.hidden{display:none!important}.game-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.game-card{background:var(--card);border-radius:16px;text-decoration:none;color:inherit;border:1px solid rgba(99,102,241,.12);box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;overflow:hidden;cursor:pointer}.game-card:hover{transform:translateY(-4px);border-color:#6366f173;box-shadow:0 16px 28px #6366f12e}.game-card-disabled{cursor:not-allowed;opacity:.7}.game-card-disabled:hover{transform:none;border-color:#6366f11f;box-shadow:var(--shadow)}.game-card-img{width:100%;aspect-ratio:16 / 9;overflow:hidden;background:#1a1a2e;position:relative}.game-card-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}.game-card:hover .game-card-img img{transform:scale(1.05)}.game-card-fallback{display:none;width:100%;height:100%;align-items:center;justify-content:center;font-size:3rem;position:absolute;top:0;left:0}.game-card-name{padding:14px 16px;font-size:1.15rem;font-weight:600;text-align:center}.last-result{text-align:center;margin-top:32px;color:var(--muted);font-size:1rem;padding:12px 20px;background:var(--card);border-radius:12px;box-shadow:var(--shadow)}.session-limit-message{margin:0 auto 24px;max-width:520px;padding:12px 18px;text-align:center;color:#991b1b;background:#fee2e2;border:1px solid #fecaca;border-radius:12px;box-shadow:var(--shadow)}@media(max-width:540px){.game-grid{grid-template-columns:1fr}header h1{font-size:1.7rem}}