*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:#0f172a;color:#e2e8f0;display:flex;justify-content:center;align-items:center;min-height:100vh}.game{text-align:center;display:flex;flex-direction:column;align-items:center;gap:1.5rem}h1{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#818cf8,#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.status{font-size:1.25rem;font-weight:600;min-height:2rem;transition:all .2s}.status.winner{color:#4ade80}.status.draw{color:#fbbf24}.board{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.square{width:100px;height:100px;font-size:2.5rem;font-weight:800;border:none;border-radius:12px;background:#1e293b;color:#e2e8f0;cursor:pointer;transition:all .15s ease}.square:hover{background:#334155;transform:scale(1.03)}.square.x{color:#818cf8}.square.o{color:#f472b6}.square.highlight{background:#334155;box-shadow:0 0 20px #4ade804d}.restart{padding:.75rem 2rem;font-size:1rem;font-weight:600;border:none;border-radius:8px;background:#818cf8;color:#fff;cursor:pointer;transition:all .15s}.restart:hover{background:#6366f1;transform:scale(1.05)}