body{font-family:Arial,sans-serif;background-color:#f8f6f2;color:#776e65;display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0;-webkit-font-smoothing:antialiased}.game-container{text-align:center;width:100%;max-width:500px;padding:20px;box-sizing:border-box;touch-action:none}.header-container{display:flex;flex-direction:column;align-items:center;margin-bottom:20px}.title{font-size:3rem;font-weight:700;margin:0;color:#776e65}.subtitle{font-size:1rem;color:#8f8279;margin-top:5px}.score-container{display:flex;justify-content:center;gap:10px;width:100%;margin-top:20px}.score-box{background-color:#bfae9e;color:#fff;padding:10px 15px;border-radius:8px;text-align:center;box-shadow:0 4px 6px #0000001a}.score-label{font-size:.8rem;font-weight:700}.score-value{font-size:1.5rem;font-weight:700}.button-group{display:flex;justify-content:center;gap:10px;margin-top:20px}.game-button{background-color:#8f8279;color:#fff;border:none;padding:10px 20px;border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;transition:background-color .3s,transform .2s;box-shadow:0 4px 6px #0000001a}.game-button:hover{background-color:#776e65;transform:translateY(-2px)}.game-button:active{transform:translateY(0)}.new-game-button{background-color:#8f8279}.game-over-message{font-size:1.5rem;font-weight:700;margin-top:20px;color:#bfae9e}.board-container{display:flex;justify-content:center;margin-top:20px}.game-board{display:grid;grid-template-columns:repeat(4,80px);gap:10px;background-color:#bfae9e;padding:10px;border-radius:12px;box-shadow:0 8px 16px #0003}.tile{width:80px;height:80px;display:flex;justify-content:center;align-items:center;font-size:2rem;font-weight:700;color:#776e65;border-radius:8px;transition:transform .2s ease,background-color .2s ease;box-shadow:inset 0 0 5px #0000001a}.tile-empty{background-color:#eee4da59}.tile-2{background-color:#eee4da}.tile-4{background-color:#ede0c8}.tile-8{background-color:#f2b179;color:#fff}.tile-16{background-color:#f59563;color:#fff}.tile-32{background-color:#f67c5f;color:#fff}.tile-64{background-color:#f65e3b;color:#fff}.tile-128{background-color:#edcf72;color:#fff}.tile-256{background-color:#edcc61;color:#fff}.tile-512{background-color:#edc850;color:#fff}.tile-1024{background-color:#edc53f;color:#fff}.tile-2048{background-color:#edc22e;color:#fff}.merged-tile{animation:pop .2s ease-in-out}@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}