body{font-family:sans-serif;background:#eaeef3;display:flex;justify-content:center;margin:0;color:#222}.game-container{text-align:center;padding:20px}.board{width:300px;height:300px;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:20px auto}.square{background:#fff;border-radius:10px;border:2px solid #444;font-size:2.2rem;font-weight:700;cursor:pointer;height:100px;width:100px;display:flex;align-items:center;justify-content:center;transition:.15s ease;box-shadow:0 2px 4px #00000026}.square:hover{background:#f1f1f1;transform:scale(1.04)}.status{font-size:1.6rem;margin-bottom:15px;font-weight:700;color:#222}.reset-btn{padding:12px 26px;background:#3558d8;color:#fff;border:none;cursor:pointer;font-size:1rem;border-radius:8px;transition:.2s ease;box-shadow:0 2px 4px #00000040}.reset-btn:hover{background:#2449c7;transform:translateY(-2px)}.leaderboard{width:300px;margin:25px auto;padding:15px 20px;background:#fff;border-radius:12px;box-shadow:0 2px 10px #0000001a;font-family:sans-serif}.leaderboard-title{margin:0 0 15px;font-size:1.4rem;font-weight:700;text-align:center;color:#222}.leaderboard-row{display:flex;align-items:center;padding:10px 8px;background:#f7f9fc;border-radius:8px;margin-bottom:8px;box-shadow:0 1px 2px #00000014}.leaderboard-empty{padding:12px 0;text-align:center;color:#777;font-size:1rem}.leaderboard-rank{width:28px;font-size:1.2rem;font-weight:700;color:#3558d8}.leaderboard-name{flex:1;margin-left:10px;font-weight:500;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.leaderboard-score{width:40px;text-align:right;font-weight:700;color:#111}