:root{--panel-bg: rgba(255, 255, 255, .85);--text-color: #333;--accent: #222;--accent-hover: #444;--border: rgba(0, 0, 0, .1)}body{margin:0;overflow:hidden;font-family:Inter,sans-serif;background:#f5f5f5;color:var(--text-color)}canvas{display:block;position:absolute;top:0;left:0;z-index:1;outline:none}#ui-container{position:absolute;top:24px;left:24px;width:280px;z-index:100;background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:20px;border-radius:16px;box-shadow:0 8px 32px #0000000f;border:1px solid rgba(255,255,255,.4);display:flex;flex-direction:column;gap:16px;transition:all .3s ease}.ui-header{font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#666;margin-bottom:4px;display:flex;justify-content:space-between;align-items:center}#ui-toggle{display:none;background:none;border:none;font-size:16px;cursor:pointer;color:#666}#layer-list{display:flex;flex-direction:column;gap:8px;max-height:50vh;overflow-y:auto}.layer-item{display:flex;align-items:center;justify-content:space-between;background:#ffffff80;padding:8px 10px;border-radius:8px;border:1px solid transparent;transition:all .2s}.layer-item.active{background:#fff;border-color:var(--accent);box-shadow:0 2px 8px #0000000d}.layer-left{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500}.layer-right{display:flex;gap:4px}input[type=checkbox]{accent-color:var(--accent);cursor:pointer}#add-layer-select{width:100%;padding:10px;border-radius:8px;border:1px dashed #ccc;background:transparent;font-family:inherit;font-size:13px;color:#555;cursor:pointer;outline:none;transition:all .2s;text-align:center}#add-layer-select:hover{border-color:var(--accent);color:var(--accent);background:#ffffff80}.icon-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;color:#888;display:flex;align-items:center;justify-content:center;transition:all .2s}.icon-btn:hover{color:var(--accent);background:#0000000d}.icon-btn.remove:hover{color:#e53e3e;background:#e53e3e1a}.icon-btn.active-btn{color:var(--accent);background:#0000000d}#editor-panel{position:fixed;bottom:24px;left:24px;width:280px;background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(0,0,0,.08);border-radius:16px;transform:translateY(120%);transition:transform .3s cubic-bezier(.16,1,.3,1);z-index:101;box-shadow:0 10px 40px #0000001a;max-height:60vh;display:flex;flex-direction:column;overflow:hidden}#editor-panel.open{transform:translateY(0)}.editor-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid rgba(0,0,0,.05);background:#fafafacc}.editor-header h3{margin:0;font-size:13px;font-weight:600;color:#444}#editor-content{padding:16px;overflow-y:auto}.editor-section h4{margin:0 0 12px;font-size:11px;text-transform:uppercase;color:#999;letter-spacing:.05em}.control-row{margin-bottom:12px}.control-row label{display:block;font-size:12px;margin-bottom:4px;color:#555}.range-wrapper{display:flex;align-items:center;gap:8px}input[type=range]{flex:1;accent-color:var(--accent);height:4px}.value-display{font-size:11px;font-family:monospace;color:#777;width:32px;text-align:right}select{width:100%;padding:6px;border-radius:4px;border:1px solid #ddd}.gh-position{position:absolute;top:24px;right:24px;bottom:auto;left:auto;z-index:100}.github-btn{padding:10px;display:flex;align-items:center;justify-content:center;color:var(--text-color);background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.4);border-radius:50%;box-shadow:0 8px 32px #0000000f;transition:all .2s}.github-btn:hover{background:#fff;transform:translateY(-1px);box-shadow:0 10px 40px #0000001a;color:var(--accent)}.action-btn.clear-btn{position:absolute;top:24px;right:80px;z-index:100;display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:99px;background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.4);font-family:inherit;font-size:13px;font-weight:500;color:var(--text-color);cursor:pointer;box-shadow:0 8px 32px #0000000f;transition:all .2s}.action-btn:hover{background:#fff;transform:translateY(-1px);box-shadow:0 10px 40px #0000001a}.action-btn:active{transform:translateY(0)}.layer-item.dragging{opacity:.5;border:2px dashed #007bff}.layer-item.drag-over{border-top:2px solid #007bff}.drag-handle{display:flex;align-items:center;justify-content:center;padding:2px}@media(max-width:768px){#ui-container{width:auto;left:16px;right:16px;top:16px;max-height:80vh}#ui-container.collapsed #layer-list,#ui-container.collapsed #add-layer-select{display:none}#ui-toggle{display:block}.gh-position{position:absolute;top:auto;right:auto;bottom:24px;left:24px}.action-btn.clear-btn{top:auto;bottom:24px;right:24px;box-shadow:0 8px 32px #00000026}}#editor-panel{width:auto;left:16px;right:16px;bottom:16px}