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.control-button:hover:not(:disabled){border-color:var(--color-primary);transform:translateY(-2px);box-shadow:0 6px 16px #0000004d}.game-2048 .game-controls .control-button:active:not(:disabled){transform:scale(.95);box-shadow:0 2px 8px #0000004d}.game-2048 .game-controls .control-button:disabled{opacity:.4;cursor:not-allowed}.game-2048 .game-controls .control-button.up-button{border-color:var(--color-success);max-width:200px}.game-2048 .game-controls .control-button.up-button:hover:not(:disabled){background:var(--color-success);color:var(--color-btn-text)}.game-2048 .game-controls .control-button.left-button,.game-2048 .game-controls .control-button.right-button{border-color:var(--color-primary)}.game-2048 .game-controls .control-button.left-button:hover:not(:disabled),.game-2048 .game-controls .control-button.right-button:hover:not(:disabled){background:var(--color-primary);color:var(--color-btn-text)}.game-2048 .game-controls .control-button.down-button{border-color:var(--color-accent)}.game-2048 .game-controls .control-button.down-button:hover:not(:disabled){background:var(--color-accent);color:var(--color-btn-text)}@media (max-width:768px){.game-2048{padding:10px}.game-2048 .game-container{border-radius:12px;width:calc(100% - 20px);padding:15px}.game-2048 .title-section h1{font-size:2.2em}.game-2048 .score-box{min-width:70px;padding:8px 12px}.game-2048 .score-box .score-value{font-size:1.3em}.game-2048 .tile{font-size:1.5em}.game-2048 .game-message{padding:25px 20px}.game-2048 .game-message h2{font-size:1.8em}.game-2048 .game-message p{margin:10px 0;font-size:1em}.game-2048 .action-button{padding:12px 24px;font-size:1em}.game-2048 .game-controls .control-button{height:70px;font-size:1.8em}}@media (max-width:480px){.game-2048{padding:5px}.game-2048 .game-container{border-radius:8px;padding:10px}.game-2048 .title-section h1{font-size:1.8em}.game-2048 .title-section p{font-size:.8em}.game-2048 .score-section{flex-direction:column;width:100%}.game-2048 .score-box{width:100%}.game-2048 .tile{font-size:1.2em}.game-2048 .game-message{padding:20px 15px}.game-2048 .game-message h2{font-size:1.5em}.game-2048 .game-message p{margin:8px 0;font-size:.9em}.game-2048 .game-controls .control-button{height:65px;font-size:1.6em}}@media (orientation:landscape) and (max-height:600px){.game-2048{min-height:100vh;padding:5px}.game-2048 .game-container{max-width:600px;padding:10px}.game-2048 .game-header,.game-2048 .score-section{flex-direction:row}}@media (prefers-reduced-motion:reduce){.game-2048 .action-button,.game-2048 .control-button{transition:none}.game-2048 .action-button:hover,.game-2048 .action-button:active,.game-2048 .control-button:hover,.game-2048 .control-button:active{transform:none}.game-2048 .tile{transition:none;animation:none}.game-2048 .new-best{animation:none}}