:root{--bg: #181818;--panel: #232323;--panel-2: #2b2b2b;--border: #3a3a3a;--accent: #e84a3a;--text: #e0e0e0;--text-dim: #8a8a8a}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}#app{display:flex;flex-direction:column;height:100%}#quicktools{background:var(--panel-2);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:6px;padding:4px 10px;overflow-x:auto;min-height:44px}.quick-btn{min-height:34px;padding:0 12px;background:#333;color:var(--text);border:1px solid var(--border);border-radius:6px;cursor:pointer;font-size:13px;white-space:nowrap}.quick-btn:hover{background:#3d3d3d}.quick-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}#toolbar{background:var(--panel);border-bottom:1px solid var(--border);display:flex;flex-wrap:nowrap;overflow-x:auto;padding:6px 8px;gap:8px;min-height:60px;align-items:flex-start}.toolbar-group{flex-shrink:0;border:1px solid var(--border);border-radius:6px;background:var(--panel-2);min-width:90px}.toolbar-summary{padding:6px 10px;font-size:13px;color:var(--text-dim);-webkit-user-select:none;user-select:none;cursor:pointer;font-weight:600}.toolbar-summary:hover{color:var(--text)}.toolbar-group.collapsed .toolbar-body{display:none}.toolbar-body{display:flex;flex-wrap:wrap;gap:4px;padding:4px 6px 8px;max-height:160px;overflow-y:auto}.block-btn{width:52px;min-height:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;background:#333;border:1px solid var(--border);border-radius:6px;cursor:pointer;padding:2px}.block-btn:active{transform:scale(.95)}.block-btn.active{border-color:var(--accent);box-shadow:0 0 0 2px #e84a3a66;background:#3a2a2a}.block-btn canvas{image-rendering:pixelated}.block-label{font-size:9px;color:var(--text-dim);line-height:1;text-align:center;max-width:48px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.rotate-btn{font-size:20px;min-height:44px}#stage{flex:1;position:relative;min-height:0}#canvas{width:100%;height:100%;display:block;touch-action:none;cursor:crosshair;user-select:none;-webkit-user-select:none}#controls{background:var(--panel);border-top:1px solid var(--border);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:8px 10px;min-height:52px}.ctrl-btn{min-height:44px;display:inline-flex;align-items:center;gap:4px;background:#333;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 12px;cursor:pointer;font-size:13px;white-space:nowrap}.ctrl-btn:hover{background:#3a3a3a}.ctrl-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.ctrl-btn.run{min-width:90px}.speed-wrap{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-dim)}.speed-wrap input[type=range]{width:120px;touch-action:none}.pack-wrap{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-dim)}.pack-wrap select{min-height:34px;max-width:180px;background:#333;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:0 6px;font-size:12px}#statusbar{position:fixed;bottom:0;left:0;right:0;background:#000000b3;color:var(--text);font-size:12px;padding:3px 10px;pointer-events:none;z-index:10;text-align:center}@media (max-width: 600px){.speed-wrap input[type=range]{width:60px}.block-btn{width:48px}}