.g2048-app{font-family:Segoe UI,Arial,sans-serif;max-width:480px;margin:0 auto;padding:12px;-webkit-user-select:none;user-select:none}.g2048-hidden{display:none!important}.g2048-header{display:flex;align-items:center;justify-content:space-between;background:#bbada0;border-radius:8px;padding:10px 16px;margin-bottom:10px}.g2048-title{font-size:2.4rem;font-weight:900;color:#f9f6f2;margin:0;letter-spacing:-1px;text-shadow:2px 2px 0 rgba(0,0,0,.15)}.g2048-lang-toggle{display:flex;gap:4px}.g2048-lang-btn{padding:4px 10px;border:2px solid #f9f6f2;border-radius:4px;background:transparent;color:#f9f6f2;font-weight:700;cursor:pointer;font-size:.85rem;transition:background .15s,color .15s}.g2048-lang-btn--active{background:#f9f6f2;color:#776e65}.g2048-score-header{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}.g2048-score-box{flex:1;min-width:72px;background:#bbada0;border-radius:6px;padding:6px 8px;text-align:center;display:flex;flex-direction:column;gap:2px}.g2048-score-box--player{background:#8f7a66}.g2048-score-box--computer{background:#6d5c4e}.g2048-score-label{font-size:.65rem;font-weight:700;color:#eee4da;text-transform:uppercase;letter-spacing:.5px}.g2048-score-value{font-size:1.3rem;font-weight:900;color:#f9f6f2}.g2048-score-total{font-size:.75rem;font-weight:400;opacity:.7}.g2048-target-bar{text-align:center;font-size:.85rem;color:#776e65;font-weight:600;margin-bottom:6px}.g2048-board{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:clamp(6px,2vw,12px);background:#bbada0;border-radius:8px;padding:clamp(6px,2vw,12px);aspect-ratio:1;position:relative;touch-action:none}.g2048-cell-empty{background:#eee4da59;border-radius:6px}.g2048-cell-tile{position:relative;display:flex;align-items:stretch}.g2048-tile{width:100%;display:flex;align-items:center;justify-content:center;border-radius:6px;font-weight:900;transition:background-color .1s,color .1s;box-shadow:0 2px 6px #0000002e}@keyframes g2048-tile-appear{0%{transform:scale(0);opacity:0}60%{transform:scale(1.12);opacity:1}to{transform:scale(1);opacity:1}}@keyframes g2048-tile-merge{0%{transform:scale(1)}40%{transform:scale(1.2)}to{transform:scale(1)}}.g2048-tile--new{animation:g2048-tile-appear .18s ease both}.g2048-tile--merged{animation:g2048-tile-merge .12s ease both}.g2048-setup{display:flex;flex-direction:column;align-items:center;gap:14px;padding:20px 0 10px}.g2048-setup-desc{text-align:center;color:#776e65;font-size:.95rem;max-width:340px}.g2048-level-selector{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center}.g2048-level-label{font-weight:700;color:#776e65;font-size:.9rem}.g2048-level-btns{display:flex;gap:6px}.g2048-level-btn{padding:6px 14px;border:2px solid #bbada0;border-radius:6px;background:#f9f6f2;color:#776e65;font-weight:700;cursor:pointer;font-size:.85rem;transition:background .15s,border-color .15s,color .15s}.g2048-level-btn--active{background:#f65e3b;border-color:#f65e3b;color:#fff}.g2048-level-target{font-weight:400;font-size:.75rem}.g2048-btn{padding:8px 18px;border-radius:6px;border:2px solid transparent;font-weight:700;font-size:.9rem;cursor:pointer;transition:opacity .15s,transform .1s}.g2048-btn:active{transform:scale(.96)}.g2048-btn--primary{background:#8f7a66;color:#f9f6f2;border-color:#8f7a66}.g2048-btn--primary:hover{opacity:.88}.g2048-btn--success{background:#5cb85c;color:#fff;border-color:#5cb85c}.g2048-btn--success:hover{opacity:.88}.g2048-btn--outline{background:transparent;color:#8f7a66;border-color:#bbada0}.g2048-btn--outline:hover{background:#f9f6f2}.g2048-btn--danger{background:transparent;color:#d9534f;border-color:#d9534f}.g2048-btn--danger:hover{background:#fdf2f2}.g2048-btn--start{font-size:1.1rem;padding:12px 32px}.g2048-controls{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:12px}.g2048-lose-screen{display:flex;flex-direction:column;gap:10px}.g2048-lose-msg{text-align:center;font-size:1.1rem;font-weight:700;color:#d9534f;padding:8px;background:#fdf2f2;border-radius:6px}.g2048-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:9999;padding:16px}.g2048-modal-box{background:#faf8ef;border-radius:10px;padding:24px;max-width:420px;width:100%;box-shadow:0 8px 40px #00000059;animation:g2048-tile-appear .2s ease both}.g2048-modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-size:1.05rem;color:#776e65}.g2048-modal-close{background:none;border:none;font-size:1.4rem;cursor:pointer;color:#8f7a66;line-height:1;padding:0 4px}.g2048-modal-body ol{padding-left:18px;color:#776e65;font-size:.95rem;line-height:1.6}.g2048-modal-box--win{text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}.g2048-win-trophy{font-size:3.5rem;line-height:1}.g2048-win-title{font-size:1.8rem;font-weight:900;color:#f65e3b;margin:0}.g2048-win-msg{color:#776e65;font-size:.95rem;margin:0}.g2048-win-score{font-size:1.2rem;font-weight:700;color:#8f7a66}@media (max-width: 380px){.g2048-title{font-size:1.8rem}.g2048-score-value{font-size:1rem}.g2048-btn{font-size:.8rem;padding:6px 12px}}