*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:#f8f9fa;-webkit-tap-highlight-color:transparent;touch-action:none;user-select:none;-webkit-user-select:none}#app{width:100%;height:100%;display:flex;justify-content:center;align-items:center;position:relative}canvas{display:block;touch-action:none}.game-ui{position:fixed;top:0;left:0;right:0;z-index:100;padding:10px;display:none}.ui-top{display:flex;justify-content:space-between;align-items:center;background:#fffffff2;padding:10px 15px;border-radius:12px;box-shadow:0 2px 8px #0000001a}.ui-info{display:flex;gap:20px;font-size:14px;font-weight:600;color:#4a4a4a}.ui-buttons{display:flex;gap:8px}.ui-btn{padding:8px 12px;border:none;border-radius:8px;background:#bae1ff;color:#4a4a4a;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.ui-btn:hover{background:#a0d1ff;transform:translateY(-1px)}.ui-btn:active{transform:translateY(0)}.menu-screen{position:fixed;inset:0;background:linear-gradient(135deg,#bae1ff,#baffc9);display:none;justify-content:center;align-items:center;z-index:200}.menu-content{text-align:center;padding:40px;background:#fffffff2;border-radius:24px;box-shadow:0 8px 32px #0000001a;max-width:400px;width:90%}.menu-title{font-size:48px;font-weight:800;color:#4a4a4a;margin-bottom:10px}.menu-subtitle{font-size:18px;color:#8a8a8a;margin-bottom:40px}.menu-buttons{display:flex;flex-direction:column;gap:12px}.menu-btn{padding:16px 32px;border:none;border-radius:12px;font-size:18px;font-weight:700;cursor:pointer;transition:all .2s;background:#e8e8e8;color:#4a4a4a}.menu-btn-primary{background:linear-gradient(135deg,#bae1ff,#a0d1ff);color:#4a4a4a;font-size:24px}.menu-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.menu-btn:active{transform:translateY(0)}.menu-footer{margin-top:30px;font-size:14px;color:#8a8a8a}.level-select-screen{position:fixed;inset:0;background:#f8f9fa;display:none;flex-direction:column;z-index:200;overflow:auto}.level-select-content{padding:20px;max-width:600px;margin:0 auto;width:100%}.level-select-header{display:flex;align-items:center;margin-bottom:20px;gap:20px}.back-btn{padding:10px 16px;border:none;border-radius:8px;background:#bae1ff;color:#4a4a4a;font-size:16px;font-weight:600;cursor:pointer}.back-btn:hover{background:#a0d1ff}.level-select-header h2{font-size:24px;color:#4a4a4a;flex:1}.level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(70px,1fr));gap:10px}.level-btn{aspect-ratio:1;border:2px solid #E8E8E8;border-radius:12px;background:#fff;cursor:pointer;display:flex;flex-direction:column;justify-content:center;align-items:center;transition:all .2s;position:relative}.level-btn:hover:not(:disabled){border-color:#bae1ff;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.level-btn.completed{background:#baffc9;border-color:#baffc9}.level-btn.locked{background:#e8e8e8;cursor:not-allowed}.level-number{font-size:20px;font-weight:700;color:#4a4a4a}.level-stars{font-size:12px;margin-top:4px}.level-lock{font-size:24px;position:absolute}.win-screen{position:fixed;inset:0;background:#00000080;display:none;justify-content:center;align-items:center;z-index:300;animation:fadeIn .3s}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.win-content{background:#fff;padding:40px;border-radius:24px;text-align:center;max-width:400px;width:90%;box-shadow:0 8px 32px #0003;animation:slideUp .3s}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.win-title{font-size:32px;font-weight:800;color:#4a4a4a;margin-bottom:20px}.win-stars{font-size:48px;margin-bottom:20px}.win-info{margin-bottom:30px;font-size:18px;color:#4a4a4a}.win-level{font-weight:700;margin-bottom:5px}.win-moves{color:#8a8a8a}.win-buttons{display:flex;flex-direction:column;gap:10px}.win-btn{padding:14px 28px;border:none;border-radius:12px;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s;background:#e8e8e8;color:#4a4a4a}.win-btn-primary{background:linear-gradient(135deg,#bae1ff,#a0d1ff);font-size:18px}.win-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.win-btn:active{transform:translateY(0)}@media (max-width: 600px){.menu-title{font-size:36px}.menu-subtitle{font-size:16px}.level-grid{grid-template-columns:repeat(auto-fill,minmax(60px,1fr))}}