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header h1{font-size:clamp(2.8rem,11vw,5rem);letter-spacing:.02em}.portal-section-title{font-size:.68rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:36px 0 16px;text-align:center}.portal-games{width:100%;max-width:660px;padding:0 16px}.portal-grid{display:grid;grid-template-columns:1fr;gap:12px}@media (min-width: 520px){.portal-grid{grid-template-columns:1fr 1fr}}.game-card{display:flex;flex-direction:column;gap:8px;padding:20px 18px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.07);background:#ffffff08;text-decoration:none;color:var(--text);transition:border-color .2s,background .2s,transform .18s;position:relative;overflow:hidden}.game-card:hover{border-color:var(--card-color, 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.15s;-webkit-tap-highlight-color:transparent}.nono-mode-btn.active{border-color:var(--accent);background:#f59e0b1a;color:var(--text)}.g2-board{display:grid;grid-template-columns:repeat(4,var(--tcell));grid-template-rows:repeat(4,var(--tcell));gap:8px;padding:10px;background:#0000004d;border-radius:14px;touch-action:none}.g2-cell{width:var(--tcell);height:var(--tcell);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:calc(var(--tcell) * .4);background:#ffffff0a;color:transparent;-webkit-user-select:none;user-select:none;transition:background .08s}.g2-cell.t2{background:#f59e0b59;color:#fff}.g2-cell.t4{background:#f59e0b8c;color:#fff}.g2-cell.t8{background:#f59e0bcc;color:#fff}.g2-cell.t16{background:#d97706;color:#fff}.g2-cell.t32{background:#22d3ee80;color:#fff}.g2-cell.t64{background:#22d3eed9;color:#fff}.g2-cell.t128{background:#10b981a6;color:#fff}.g2-cell.t256{background:#059669e6;color:#fff}.g2-cell.t512{background:#ef4444a6;color:#fff}.g2-cell.t1024{background:#dc2626e6;color:#fff}.g2-cell.t2048{background:linear-gradient(135deg,#f59e0b,#22d3ee);color:#fff;box-shadow:0 0 24px #f59e0b66}.g2-overlay{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:14px;background:#000c;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:10;animation:fadeIn .3s ease}.g2-msg{text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center;padding:24px}.g2-msg-title{font-size:2rem;font-weight:900;color:var(--text)}.g2-msg 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