:root{--primary: #9f0052;--primary-light: #d0dc9a;--primary-light-contrast: #1c1c1c;--primary-contrast: #ffffff;--menu-active: #9f0052;--background: #fafaf8;--surface-panel: #ffffff;--card: #ffffff;--surface-subtle: #f1f3f4;--foreground: #1c1c1c;--muted-foreground: #697078;--border: #e7e9eb;--surface-hover: color-mix(in srgb, var(--primary) 7%, var(--surface-panel));--surface-active: color-mix(in srgb, var(--primary) 12%, var(--surface-panel));--danger: #c62828;--success: #2e7d32;--warning: #b26a00;--radius: 10px;--radius-sm: 6px;--radius-control: 10px;--radius-surface: 14px;--shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 4px 16px rgb(0 0 0 / 5%);--shadow-soft: 0 1px 2px rgb(23 28 33 / 4%), 0 8px 24px rgb(23 28 33 / 4%);--shadow-floating: 0 12px 32px rgb(23 28 33 / 12%);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 10%), 0 4px 6px -4px rgb(0 0 0 / 10%);--font-sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;color-scheme:light}:root.dark{--primary: #e879a9;--primary-contrast: #1a1a1a;--background: #1a1a1a;--surface-panel: #212121;--card: #212121;--surface-subtle: #292d30;--foreground: #f3f4f5;--muted-foreground: #aeb4ba;--border: #31363a;--danger: #ef7a7a;--success: #7bc47f;--warning: #f0b25a;--shadow: 0 1px 2px rgb(0 0 0 / 40%);--shadow-soft: 0 1px 2px rgb(0 0 0 / 22%), 0 8px 24px rgb(0 0 0 / 16%);--shadow-floating: 0 16px 40px rgb(0 0 0 / 38%);color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--background);color:var(--foreground);font-family:var(--font-sans);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--primary)}::selection{background:var(--primary-light);color:var(--primary-light-contrast)}:focus-visible{outline:2px solid color-mix(in srgb,var(--primary) 35%,transparent);outline-offset:2px}h1,h2,h3{margin:0;line-height:1.25}h1{font-size:22px;font-weight:650}h2{font-size:16px;font-weight:600}h3{font-size:14px;font-weight:600}.shell{--shell-rail: 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ease}.shell-rail-btn:hover,.shell-rail-btn.active{background:var(--primary-light);color:var(--primary-light-contrast)}.shell-rail-icon{width:18px;height:18px;stroke-width:2.25;transition:transform .28s ease-in-out}.shell-rail-icon--open{transform:rotate(180deg)}.shell-drawer{flex-shrink:0;width:0;height:100%;opacity:0;overflow:hidden;position:relative;z-index:10;transition:width .28s ease-in-out,opacity .28s ease-in-out}.shell-drawer--right{transition-duration:.3s}.shell-drawer.open{width:var(--shell-panel);opacity:1}.shell-drawer>*{visibility:hidden;transition:visibility 0s linear .3s}.shell-drawer.open>*{visibility:visible;transition-delay:0s}.shell-panel{display:flex;flex-direction:column;width:var(--shell-panel);height:100%;background:var(--surface-panel);color:var(--foreground);font-size:.875rem}.shell-panel--left{border-right:1px solid var(--border-subtle, var(--border));box-shadow:var(--shadow-lg)}.shell-panel--right{border-left:1px solid var(--border);box-shadow:0 1px 2px #0000000d}.shell-brand{display:flex;align-items:center;justify-content:center;flex-shrink:0;min-height:var(--shell-brand-height);padding:.375rem 1rem;background:var(--surface-panel)}.shell-brand--left{justify-content:flex-start}.shell-brand--right{justify-content:flex-end}.shell-brand-link{display:inline-flex;align-items:center;color:var(--foreground);text-decoration:none}.shell-brand-link img{height:2.25rem;max-width:12rem;object-fit:contain}.shell-brand-wordmark{font-size:1.5rem;font-weight:700;letter-spacing:.01em}.shell-panel-bar{display:flex;align-items:center;justify-content:space-between;gap:.5rem;flex-shrink:0;height:var(--shell-bar-height);margin:var(--shell-bar-gap) 1rem;padding:0 1rem;border:none;border-radius:12px;background:var(--primary);color:var(--primary-contrast);font:inherit;text-align:left;cursor:pointer}.shell-panel--right 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1rem)}.shell-assistant-host{display:flex;flex-direction:column;flex:1;min-height:0}.shell-edge-tab:hover{filter:brightness(.96)}.shell-edge-tab--inline{position:static;margin-left:auto}.shell-edge-tab--inline+.shell-edge-tab--inline{margin-left:.25rem}.shell-topbar{display:flex;align-items:center;gap:.75rem;flex-shrink:0;min-height:2.75rem;padding:.35rem 0 .35rem .75rem;background:var(--surface-panel);border-bottom:1px solid var(--border-subtle, var(--border))}.shell-topbar-title{font-weight:700}.shell-topbar-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;padding:0;border:1px solid var(--border-subtle, var(--border));border-radius:10px;background:var(--surface-panel);color:var(--text-secondary, var(--foreground));cursor:pointer}.shell-topbar-btn:hover{background:var(--primary-light);border-color:var(--primary-light);color:var(--primary-light-contrast)}.shell--mobile 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var(--border);border-radius:12px;box-shadow:var(--shadow-soft);pointer-events:auto}.viewer-tool{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;border:none;border-radius:9px;background:transparent;color:var(--text-secondary, var(--muted-foreground));cursor:pointer;transition:background-color .12s ease,color .12s ease}.viewer-tool:hover:not(:disabled){background:var(--primary-light);color:var(--primary-light-contrast)}.viewer-tool.active{background:var(--primary);color:var(--primary-contrast)}.viewer-tool:disabled{opacity:.4;cursor:default}.viewer-tool-menu{position:relative}.viewer-menu-panel{position:absolute;top:calc(100% + 6px);left:0;z-index:20;min-width:200px;padding:4px;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-floating)}.viewer-menu-panel button{display:block;width:100%;padding:7px 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var(--border)}.viewer-tabs{display:flex;gap:2px}.viewer-tab{flex:1;display:inline-flex;align-items:center;justify-content:center;height:32px;border:none;border-radius:9px;background:transparent;color:var(--text-secondary, var(--muted-foreground));cursor:pointer}.viewer-tab:hover{background:var(--primary-light);color:var(--primary-light-contrast)}.viewer-tab.active{background:var(--primary);color:var(--primary-contrast)}.viewer-tab-title{margin:0}.viewer-side-body{flex:1;min-height:0;overflow:auto;padding:12px 14px 24px}.viewer-models{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}.viewer-model{display:flex;flex-direction:column;gap:6px;padding:10px;border:1px solid var(--border);border-radius:12px}.viewer-model-head{display:flex;align-items:center;gap:4px}.viewer-model-title{flex:1;min-width:0;display:flex;flex-direction:column}.viewer-model-info dd{overflow-wrap:anywhere}.viewer-tree{font-size:13px}.viewer-tree 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var(--border);background:var(--surface-subtle)}.viewer-cards{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}.viewer-card{display:flex;flex-direction:column;gap:6px;padding:8px;border:1px solid var(--border);border-radius:12px}.viewer-card.active{border-color:var(--primary)}.viewer-topic-head{display:flex;align-items:center;gap:8px;width:100%;padding:0;border:none;background:transparent;color:var(--foreground);font:inherit;text-align:left;cursor:pointer}.viewer-topic-thumb{width:64px;height:40px;flex-shrink:0;object-fit:cover;border-radius:6px;border:1px solid var(--border)}.viewer-viewpoint{padding:0;border:none;background:transparent;cursor:pointer}.viewer-viewpoint:disabled{cursor:default}.viewer-comment{padding:6px 8px;border-radius:8px;background:var(--surface-subtle)}.login{display:flex;align-items:center;justify-content:center;min-height:100%;padding:24px}.login 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