:root{--brand-deep: #1F1B3D;--brand-violet: #5B4BD8;--brand-violet-soft: #ECEAFB;--surface: #FFFFFF;--surface-2: #F6F7FB;--canvas-top: #F7F8FB;--canvas-bottom: #E9ECF3;--ground: #FAFBFD;--grid-minor: #DEE2EC;--grid-major: #C5CAD6;--text: #0F1230;--text-muted: #5A6079;--success: #22A06B;--warning: #D9821A;--danger: #D24858;--axis-x: #E5484D;--axis-y: #30A46C;--axis-z: #3E63DD;--border: #DEE2EC;--shadow-elevation: 0 6px 24px rgba(15, 18, 48, .1);--radius-chip: 8px;--radius-button: 12px;--radius-panel: 16px;--motion-fast: .12s;--motion-base: .18s;--motion-slow: .24s;--ease-out: cubic-bezier(.2, .8, .2, 1);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--canvas-bottom);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0;overflow:hidden}button,input{font:inherit}button{border:0}button:focus-visible,input:focus-visible{outline:2px solid var(--brand-violet);outline-offset:2px}kbd{display:inline-block;padding:0 8px;border:1px solid var(--grid-major);border-bottom-width:2px;border-radius:var(--radius-chip);background:var(--surface-2);color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.5}.app-shell{display:grid;grid-template-rows:56px minmax(0,1fr);height:100dvh;overflow:hidden}.topbar{position:relative;z-index:20;display:grid;grid-template-columns:minmax(280px,1fr) auto minmax(320px,1fr);align-items:center;height:56px;padding:0 16px;gap:16px;background:var(--brand-deep);color:#fff}.topbar-cluster{display:flex;align-items:center;min-width:0}.topbar-left{gap:16px}.topbar-center{justify-content:center;gap:8px}.topbar-right{justify-content:flex-end;gap:8px}.brand{display:inline-flex;align-items:center;gap:8px;min-width:0}.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:var(--radius-button);background:#fff;color:var(--brand-deep);font-family:Nunito,Inter,sans-serif;font-size:20px;font-weight:800}.brand-name{font-family:Nunito,Inter,sans-serif;font-size:16px;font-weight:800}.scene-title-button,.scene-title-input{min-width:0;max-width:280px;height:36px;border-radius:var(--radius-chip);color:#fff}.scene-title-button{display:inline-flex;align-items:center;gap:8px;padding:0 12px;background:#ffffff14;cursor:pointer}.scene-title-button span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.scene-title-input{border:1px solid rgba(255,255,255,.28);padding:0 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8px);left:50%;width:340px;transform:translate(-50%);border:1px solid var(--border);border-radius:var(--radius-panel);background:var(--surface);color:var(--text);box-shadow:var(--shadow-elevation)}.workspace{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr);min-height:0;overflow:hidden}.left-dock{position:relative;z-index:12;grid-column:1;min-height:0;background:#ffffffeb;border-right:1px solid var(--border)}.dock-strip{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 4px}.dock-button,.icon-button{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:var(--radius-chip);background:transparent;color:var(--text-muted);cursor:pointer;transition:background var(--motion-fast) var(--ease-out),color var(--motion-fast) var(--ease-out)}.dock-button:hover,.dock-button.is-active,.icon-button:hover,.icon-button.is-active{background:var(--brand-violet-soft);color:var(--brand-violet)}.dock-panel{position:absolute;top:12px;left:48px;width:240px;max-height:calc(100dvh - 96px);display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--radius-panel);background:var(--surface);box-shadow:var(--shadow-elevation);overflow:hidden}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:16px;background:var(--surface-2);border-bottom:1px solid var(--border)}.panel-head h2{margin:0;color:var(--text-muted);font-size:13px;font-weight:700;text-transform:uppercase}.mini-badge{min-width:24px;padding:2px 8px;border-radius:999px;background:var(--brand-violet-soft);color:var(--brand-violet);font-size:12px;font-weight:700;text-align:center}.scenes-panel,.outliner-section{display:flex;flex:1;min-height:0;flex-direction:column}.scene-card{display:grid;grid-template-columns:48px minmax(0,1fr);align-items:center;gap:12px;margin:12px;padding:8px;border:1px solid var(--border);border-radius:var(--radius-button);background:var(--surface);color:var(--text);text-align:left;cursor:pointer}.scene-card.is-active{border-color:var(--brand-violet);background:var(--brand-violet-soft)}.scene-thumb{display:grid;place-items:center;width:48px;height:40px;border-radius:var(--radius-chip);background:linear-gradient(180deg,var(--canvas-top),var(--canvas-bottom));color:var(--brand-violet)}.scene-card strong,.scene-card small{display:block}.scene-card strong{font-size:14px}.scene-card small{color:var(--text-muted);font-size:12px}.new-scene-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;margin:auto 12px 12px;min-height:40px;border-radius:var(--radius-button);background:var(--brand-violet);color:#fff;font-size:14px;font-weight:700;cursor:pointer}.outliner-list{display:flex;flex-direction:column;gap:8px;padding:12px;overflow:auto}.outliner-item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;min-height:44px;padding:4px;border:1px solid transparent;border-radius:var(--radius-button);background:transparent;color:var(--text)}.outliner-item:hover,.outliner-item.is-selected{border-color:var(--brand-violet);background:var(--brand-violet-soft)}.outliner-item.is-hidden{color:var(--text-muted);opacity:.72}.outliner-select{display:grid;grid-template-columns:16px 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button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;height:36px;padding:0 10px;border-radius:var(--radius-button);background:transparent;color:var(--text-muted);font-size:13px;font-weight:700;cursor:pointer}.selection-gizmo-cluster button:hover,.selection-gizmo-cluster button.is-active{background:var(--brand-violet-soft);color:var(--brand-violet)}.selection-gizmo-cluster .more-button{width:36px;min-width:36px;padding:0}.selection-gizmo-cluster .more-button span{display:none}.object-action-panel,.transform-popover{position:absolute;z-index:11;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-elevation);overflow:hidden}.object-action-panel{top:0;right:0;width:min(360px,calc(100% - 48px));border-top:0;border-right:0;border-bottom:0;border-radius:0;box-shadow:-6px 0 24px #0f12301a;overflow-y:auto}.transform-popover{top:144px;left:64px;width:336px;border-radius:var(--radius-panel);max-height:calc(100% - 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12px;background:var(--surface);color:var(--text);font-weight:700}.module-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding:12px}.module-button{position:relative;display:grid;min-height:64px;place-items:center;gap:4px;padding:8px;border-radius:var(--radius-button);background:var(--surface-2);color:var(--text-muted);font-size:12px;font-weight:700;cursor:pointer}.module-button:hover:not(:disabled){background:var(--brand-violet-soft);color:var(--brand-violet)}.module-button small{position:absolute;top:4px;right:4px;padding:1px 4px;border-radius:999px;background:var(--brand-violet);color:#fff;font-size:10px}.object-action-row{display:flex;flex-wrap:wrap;gap:8px;padding:0 12px 12px}.action-chip,.secondary-panel-button,.primary-panel-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:0 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var(--border);border-radius:var(--radius-button);background:var(--surface-2);color:var(--text-muted);font-size:13px;font-weight:700}.asset-tile span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.asset-tile:hover{border-color:var(--brand-violet);background:var(--brand-violet-soft);color:var(--brand-violet)}.dock-empty-content{display:flex;align-items:center;gap:12px;min-width:0;padding:16px;overflow-x:auto}.environment-chip,.help-chip{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 12px;border-radius:999px;background:var(--surface-2);color:var(--text-muted);font-size:13px;font-weight:700;white-space:nowrap}.bottom-dock.is-collapsed .library-content{grid-template-columns:minmax(0,1fr)}.bottom-dock.is-collapsed .asset-region{display:none}.bottom-dock.is-collapsed .category-column{flex-direction:row;border-right:0;overflow-x:auto}.bottom-dock.is-collapsed .category-button{flex:0 0 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