body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}body{display:flex;justify-content:center;align-items:center;height:100vh;margin:0;background-color:#000;font-family:"Press Start 2P",cursive;color:#fff}.container{text-align:center;width:100%;max-width:600px;font-family:"Press Start 2P",cursive}button{font-family:"Press Start 2P",cursive}.puzzle-container{display:grid;gap:8px;justify-content:center;align-items:flex-start;margin:20px auto;padding:15px;background:#000;border-radius:12px;box-shadow:0 4px 10px #0000004d}.tile{width:100px;height:100px;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;background-color:#4caf50;color:#fff;cursor:pointer;border-radius:8px;transition:transform .2s ease-in-out}.tile:hover{transform:scale(1.05)}.tile.empty{background-color:#000;cursor:default}.win-message{margin-top:20px;font-size:24px;color:#ff5722;font-weight:700}.reset-button{margin-top:15px;padding:12px 20px;font-size:18px;background-color:#fff;color:#000;border:1px solid #ffffff;border-radius:8px;cursor:pointer;transition:.3s}.reset-button:hover{background-color:#484848;border:1px solid #ffffff;color:#fff}