:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background:linear-gradient(135deg,#0f0c29,#302b63,#24243e);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;justify-content:center;align-items:center;min-width:320px;min-height:100vh}.game-container{text-align:center;padding:28px;max-width:520px;margin:0 auto;border-radius:24px;background:#0c122080;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 24px 80px #00000047}h1{color:#4cc9f0;margin-bottom:20px}.game-board{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:20px auto;max-width:392px}.cell{width:92px;height:92px;background-color:#2a2a2ad1;display:flex;justify-content:center;align-items:center;font-size:2rem;font-weight:700;cursor:pointer;border-radius:8px;transition:all .2s ease;color:#f72585}.cell:hover:not(.disabled){background-color:#3a3a3aeb;transform:scale(1.05)}.cell.disabled{cursor:not-allowed;opacity:.7}.game-status{font-size:1.2rem;margin:15px 0;padding:10px;background-color:#4cc9f01a;border-radius:5px}@media(max-width:520px){.game-container{margin:16px;padding:20px}.game-board{max-width:min(100%,320px);gap:6px}.cell{width:100%;aspect-ratio:1;height:auto}}.reset-button{background-color:#4cc9f0;color:#fff;border:none;padding:10px 20px;font-size:1rem;border-radius:5px;cursor:pointer;transition:all .2s ease}.reset-button:hover{background-color:#3a9bc9;transform:scale(1.05)}.reset-button:active{transform:scale(.98)}