*{margin:0;padding:0;box-sizing:border-box}:root{--bg-dark: #0f172a;--bg-medium: #1e293b;--bg-panel: #1e293b;--bg-hover: #253347;--accent: #38bdf8;--accent-dark: #0284c7;--text: #e2e8f0;--text-muted: #94a3b8;--border: #334155;--toolbar-h: 52px;--status-h: 28px;--panel-w: 272px}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg-dark);color:var(--text);height:100vh;overflow:hidden;display:flex;flex-direction:column}#toolbar{height:var(--toolbar-h);background:var(--bg-panel);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 16px;gap:10px;flex-shrink:0;position:relative;z-index:50;transform:translateZ(0)}.toolbar-brand{font-weight:700;font-size:15px;color:var(--accent);white-space:nowrap;margin-right:4px}.toolbar-actions{display:flex;gap:6px;flex-wrap:wrap}.btn{background:#253347;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 13px;font-size:13px;cursor:pointer;transition:background .12s,border-color .12s;white-space:nowrap;line-height:1.4}.btn:hover{background:#2d4260;border-color:var(--accent)}.btn-primary{background:var(--accent);color:#0f172a;border-color:var(--accent);font-weight:600}.btn-primary:hover{background:#7dd3fc;border-color:#7dd3fc}.btn-icon{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:15px;padding:2px 6px;border-radius:4px;line-height:1;transition:color .1s,background .1s}.btn-icon:hover{color:var(--text);background:var(--border)}.btn-full{width:100%;text-align:center;justify-content:center}.btn-large{padding:11px 22px;font-size:14px}#app{flex:1;display:flex;overflow:hidden;position:relative}#canvas-container{flex:1;position:relative;overflow:hidden;background:var(--bg-dark)}#canvas-container canvas{display:block;width:100%!important;height:100%!important}#empty-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--bg-dark);z-index:50;transform:translateZ(0)}.empty-icon{font-size:60px}#empty-state h2{font-size:22px;color:var(--text)}#empty-state p{color:var(--text-muted);font-size:14px;margin-bottom:6px}#loading-overlay{position:absolute;inset:0;background:#0f172ae0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:20}.loading-spinner{width:44px;height:44px;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#loading-text{color:var(--text-muted);font-size:14px}.side-panel{width:var(--panel-w);background:var(--bg-panel);border-left:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}#models-panel{border-left:none;border-right:1px solid var(--border)}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--border);font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em;flex-shrink:0}#models-list{flex:1;overflow-y:auto}.model-entry{border-bottom:1px solid var(--border)}.model-entry:last-child{border-bottom:none}.model-header{display:flex;align-items:center;gap:5px;padding:8px 8px 8px 6px;cursor:default}.model-expand{font-size:9px;min-width:14px;color:var(--text-muted);transition:transform .15s;cursor:pointer;line-height:1}.model-entry.collapsed .model-expand{transform:rotate(-90deg)}.model-name{flex:1;font-size:12px;font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer}.model-name:hover{color:var(--accent)}.model-btns{display:flex;gap:1px;flex-shrink:0}.model-cats-list{padding:2px 6px 8px 24px}.model-entry.collapsed .model-cats-list{display:none}.model-cat-row{display:flex;align-items:center;gap:3px;padding:3px 4px;border-radius:4px;font-size:12px}.model-cat-row:hover{background:var(--bg-hover)}.cat-name{flex:1;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cat-count{font-size:11px;color:var(--text-muted);background:var(--border);padding:1px 6px;border-radius:10px;flex-shrink:0}.btn-tog{background:none;border:none;cursor:pointer;font-size:13px;padding:2px 3px;border-radius:3px;line-height:1;opacity:1;transition:opacity .1s,background 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0;font-size:12px;line-height:1.5}.prop-key{color:var(--text-muted);min-width:90px;flex-shrink:0}.prop-value{color:var(--text);word-break:break-word}#element-actions{border-top:1px solid var(--border);flex-shrink:0}.actions-inner{padding:12px}.actions-title{font-size:10px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em;margin-bottom:10px}.action-row{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:12px}.action-row label{color:var(--text-muted);min-width:58px;flex-shrink:0}.action-row input[type=range]{flex:1;accent-color:var(--accent);cursor:pointer}#opacity-value{font-size:11px;color:var(--text-muted);min-width:30px;text-align:right}#status-bar{height:var(--status-h);background:var(--bg-panel);border-top:1px solid var(--border);display:flex;align-items:center;padding:0 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input[type=range]:disabled{opacity:.3;cursor:not-allowed}.sect-pct{font-size:11px;color:var(--text-muted);text-align:right;font-variant-numeric:tabular-nums}#walk-overlay{position:absolute;inset:0;pointer-events:none;z-index:30;display:flex;align-items:center;justify-content:center}#walk-overlay.pointer-active{pointer-events:none}.walk-crosshair{position:absolute;width:18px;height:18px;top:50%;left:50%;transform:translate(-50%,-50%)}.walk-crosshair:before,.walk-crosshair:after{content:"";position:absolute;background:#ffffffd9;border-radius:1px}.walk-crosshair:before{width:2px;height:18px;left:8px;top:0}.walk-crosshair:after{width:18px;height:2px;top:8px;left:0}.walk-hint{position:absolute;bottom:40px;left:50%;transform:translate(-50%);background:#0f172ad1;border:1px solid var(--border);border-radius:10px;padding:14px 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.12s;white-space:nowrap}.pegman:hover{background:#7dd3fc;border-color:#7dd3fc}.pegman:active{cursor:grabbing}.pegman.dragging{opacity:.45;cursor:grabbing}.pegman.disabled{opacity:.4;cursor:not-allowed}.pegman-icon{font-size:16px;line-height:1}.pegman-label{font-size:12px}.btn-vr{background:#7c3aed;color:#fff;border-color:#7c3aed;font-weight:600}.btn-vr:hover{background:#6d28d9;border-color:#6d28d9}.btn.active{background:var(--accent);color:#0f172a;border-color:var(--accent);font-weight:600}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#4a5568}.hidden{display:none!important}