:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{box-sizing:border-box}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#faf8ef;color:#776e65;overflow-x:hidden}#root{height:100%;width:100%}.app{min-height:100vh;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;padding:5px;box-sizing:border-box;width:100%;overflow-x:hidden}.main-content{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;max-width:100vw;padding:0 5px;box-sizing:border-box}.game-container{width:100%;max-width:100%;display:flex;flex-direction:column;align-items:center}.game-board{margin:10px 0}.controls-text{font-size:14px;margin:10px 0;text-align:center;color:#776e65}.controls-buttons{margin:15px 0}.control-button{width:44px;height:44px;margin:4px;font-size:16px;border-radius:6px;border:none;background-color:#8f7a66;color:#f9f6f2;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.game-header{flex-direction:column;align-items:center;text-align:center;gap:12px;width:100%;padding:60px 10px 10px}.game-header h1{font-size:32px;margin:0}.hamburger-menu{top:10px;left:10px;width:44px;height:44px}.help-button{font-size:14px;padding:8px 16px;min-width:100px;margin-top:12px}.score-container,.best-score-container{min-width:60px;padding:6px 10px;font-size:12px}.restart-button,.undo-button,.redo-button{padding:8px 12px;font-size:12px}@media (min-width: 375px){.game-header h1{font-size:36px}.help-button{font-size:15px;padding:10px 18px;min-width:110px}.score-container,.best-score-container{min-width:70px;padding:8px 12px;font-size:14px}.restart-button,.undo-button,.redo-button{padding:10px 14px;font-size:13px}}@media (min-width: 480px){.app{padding:12px}.main-content{gap:15px;padding:0 12px}.game-header h1{font-size:40px}.hamburger-menu{top:12px;left:12px;width:48px;height:48px}.help-button{font-size:16px;padding:12px 20px;min-width:120px;margin-top:15px}}@media (min-width: 768px){.app{padding:15px}.main-content{gap:15px;padding:0 15px}.game-header{gap:12px}.game-header h1{font-size:32px}.hamburger-menu{top:15px;left:15px;width:45px;height:45px}.help-button{font-size:13px;padding:8px 16px;min-width:100px}}@media (min-width: 1024px){.app{padding:20px;justify-content:center}.main-content{gap:20px;padding:0 20px}.game-container{max-width:500px}.game-header h1{font-size:36px}}@media (min-width: 1400px){.main-content{flex-direction:row;justify-content:center;align-items:flex-start;gap:30px;max-width:1200px}.game-container{flex:0 0 auto}.game-header h1{font-size:48px}}.tile{transition:all .15s ease-in-out}.game-board{margin:0 auto}.game-board{width:100%;max-width:500px}@media (max-width: 600px){.game-board{max-width:400px}}@media (max-width: 480px){.game-board{max-width:350px}}@media (max-width: 400px){.game-board{max-width:320px}}.game-container{margin:0 auto}button:hover{transform:translateY(-1px)}button:active{transform:translateY(0)}button:focus{outline:2px solid #8f7a66;outline-offset:2px}@keyframes scoreUpdate{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.score-update{animation:scoreUpdate .2s ease-in-out}