:root{color-scheme:dark;accent-color:#3b82f6;--bg-app: #0f172a;--bg-panel: #111827;--bg-panel-elevated: #1e293b;--bg-hover: #334155;--border-subtle: #1f2937;--border-strong: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #3b82f6;--accent-hover: #2563eb;--danger: #ef4444;--scrollbar-thumb: #475569;--scrollbar-track: #0f172a}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background:var(--bg-app);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,sans-serif}::selection{background:#3b82f659;color:#fff}.app-shell{display:grid;grid-template-rows:auto minmax(0,1fr);width:100vw;height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:6px 16px;background:var(--bg-panel);border-bottom:1px solid var(--border-strong);gap:12px;-webkit-user-select:none;user-select:none}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;letter-spacing:-.01em}.brand-badge{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;font-size:11px;font-weight:800;padding:3px 7px;border-radius:5px;letter-spacing:.04em}.toolbar-group{display:flex;align-items:center;gap:6px;background:var(--bg-app);padding:4px;border-radius:8px;border:1px solid var(--border-strong)}.toolbar-slider{display:inline-flex;align-items:center;gap:6px;padding:0 6px;font-size:11px;color:var(--text-secondary)}.toolbar-slider input{width:80px}.toolbar-slider span{min-width:34px;font-variant-numeric:tabular-nums}.toolbar-divider{width:1px;height:20px;background:var(--border-strong);margin:0 4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:6px 10px;font-size:12px;font-weight:500;color:var(--text-primary);background:transparent;border:1px solid transparent;border-radius:6px;cursor:pointer;transition:background .12s ease,border-color .12s ease;-webkit-user-select:none;user-select:none}.btn:hover:not(:disabled){background:var(--bg-panel-elevated)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.active{background:var(--accent);color:#fff}.btn-outline{background:var(--bg-panel-elevated);border-color:var(--border-strong)}.btn-outline:hover:not(:disabled){background:var(--bg-hover)}.btn-danger:hover:not(:disabled){background:#ef444433;color:#fca5a5;border-color:#ef444466}.workspace-grid{display:grid;grid-template-columns:340px 1fr 330px;height:100%;min-height:0;overflow:hidden}.workspace-grid.panels-hidden{grid-template-columns:1fr}.workspace-grid.panels-hidden>.panel{display:none}.panel{display:flex;flex-direction:column;background:var(--bg-panel);height:100%;overflow:hidden}.panel-left{border-right:1px solid var(--border-strong)}.panel-right{border-left:1px solid var(--border-strong)}.panel-header{padding:12px 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8px;border-radius:999px;background:var(--bg-app);border:1px solid var(--border-strong);color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none}.category-pill:hover{border-color:var(--text-muted);color:var(--text-primary)}.category-pill.active{background:#3b82f633;border-color:var(--accent);color:#93c5fd;font-weight:600}.scroller{overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track)}@supports not (scrollbar-color: auto){.scroller::-webkit-scrollbar{width:10px;height:10px}.scroller::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb)}.scroller::-webkit-scrollbar-track{background:var(--scrollbar-track)}}.catalog-list{flex:1;padding:10px;display:flex;flex-direction:column;gap:7px}.part-card{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;background:var(--bg-panel-elevated);border:1px solid var(--border-strong);border-radius:8px;cursor:pointer;text-align:left;transition:border-color .12s ease,transform .08s ease}.part-card-deferred{content-visibility:auto;contain-intrinsic-size:auto none auto 94px}.catalog-list.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));align-content:start;gap:8px}.catalog-list.grid .empty-state{grid-column:1 / -1}.part-tile{display:flex;align-items:center;justify-content:center;padding:0;background:none;border:1px solid transparent;border-radius:9px;cursor:pointer}.part-tile.part-card-deferred{contain-intrinsic-size:auto none auto 100px}.part-tile:hover,.part-tile:focus-visible{border-color:var(--accent)}.library-title-tools{display:flex;align-items:center;gap:8px}.view-switch{display:inline-flex;border:1px solid var(--border-strong);border-radius:6px;overflow:hidden}.view-switch button{display:flex;padding:3px 6px;background:none;border:0;color:inherit;cursor:pointer;opacity:.6}.view-switch 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12px)}.viewport-canvas.viewport-immersive{position:fixed;top:0;right:0;bottom:0;left:0;width:100vw;height:100vh;z-index:2000;background:#000}.immersive-hint{position:fixed;top:16px;left:50%;transform:translate(-50%);z-index:2001;padding:6px 14px;border-radius:999px;background:#0f172ad9;border:1px solid var(--border-strong);color:var(--text-secondary);font-size:12px;pointer-events:none;animation:immersive-hint-fade .6s ease 3s forwards}@keyframes immersive-hint-fade{to{opacity:0;visibility:hidden}}.viewport-input{position:absolute;top:0;left:0;width:100%;height:100%;touch-action:none}.viewport-hud-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;pointer-events:none;gap:10px}.hud-pill{pointer-events:auto;display:flex;align-items:center;gap:8px;background:#0f172ad9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border-strong);padding:6px 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var(--border-strong);border-radius:4px;background:transparent;color:#1a1206;cursor:pointer}.row-check:hover{border-color:#ff9f1c}.row-check.on,.row-check.mixed{background:#ff9f1c;border-color:#ff9f1c}.outliner-heading{display:flex;align-items:center;justify-content:space-between;padding:6px 4px 2px;font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted)}.outliner-heading.selected-heading{color:#ffb54d;padding-top:0}.link-btn{background:none;border:none;padding:0;font-size:11px;font-weight:600;text-transform:none;letter-spacing:normal;color:var(--text-secondary);cursor:pointer}.link-btn:hover{color:var(--text-primary);text-decoration:underline}.select-box{position:absolute;pointer-events:none;border:1.5px solid #ffd400;background:#ffd4001a;z-index:5}.select-box.crossing{border-style:dashed;background:#ffd4000f}.hud-pill-selection{border-color:#ff9f1cb3;color:#ffd29a}.instance-row-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.icon-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:3px;border-radius:4px;display:inline-flex;align-items:center}.icon-btn:hover{color:var(--text-primary);background:var(--bg-hover)}.icon-btn:disabled{opacity:.4;cursor:default;background:none}.icon-btn.mixed{opacity:.55}.icon-btn.locate-btn.active{color:var(--accent);background:#3b82f62e}.instance-row.folder-row{gap:6px;padding-left:4px}.folder-toggle{padding:1px}.folder-count{margin-left:6px;font-size:11px;color:var(--text-muted)}.instance-row.in-folder{margin-left:18px}.inspector-title{display:flex;flex-direction:column;min-width:0;flex:1}.inspector-name{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-transform:none;letter-spacing:normal;color:var(--text-primary)}.inspector-sub{font-size:11px;font-weight:400;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-transform:none;letter-spacing:normal;color:var(--text-muted)}.inspector-body{padding:12px 14px;display:flex;flex-direction:column;gap:14px}.field-group{display:flex;flex-direction:column;gap:6px}.field-label{font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;display:flex;justify-content:space-between}.xyz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.coord-input-wrap{display:flex;align-items:center;background:var(--bg-app);border:1px solid var(--border-strong);border-radius:6px;overflow:hidden}.coord-axis{padding:0 6px;font-size:11px;font-weight:700;-webkit-user-select:none;user-select:none}.coord-axis.x{color:#f87171}.coord-axis.y{color:#4ade80}.coord-axis.z{color:#60a5fa}.coord-input{width:100%;background:transparent;border:none;color:var(--text-primary);padding:6px 6px 6px 2px;font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.coord-input:focus{outline:none}.coord-input:not(input[type=range]):user-invalid{background:#ef444426}.nudge-row{display:grid;grid-template-columns:repeat(6,1fr);gap:4px}.color-swatches{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.color-swatch-btn{width:24px;height:24px;border-radius:6px;border:2px solid transparent;cursor:pointer}.color-swatch-btn.active{border-color:#fff;box-shadow:0 0 0 2px var(--accent)}.metadata-card{background:var(--bg-app);border:1px solid var(--border-strong);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:6px;font-size:12px}.metadata-row{display:flex;justify-content:space-between;color:var(--text-secondary)}.metadata-row strong{color:var(--text-primary);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.empty-state{padding:24px 16px;text-align:center;color:var(--text-muted);font-size:12px;line-height:1.5}.smart-tools-card{background:var(--bg-app);border:1px solid var(--border-strong);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:10px}.smart-tool-block{display:flex;flex-direction:column;gap:6px;padding-bottom:10px;border-bottom:1px solid var(--border-subtle)}.smart-tool-block:last-child{padding-bottom:0;border-bottom:none}.smart-tool-title{font-size:11px;font-weight:700;color:#38bdf8;display:flex;align-items:center;justify-content:space-between}.cad-select,.cad-input{width:100%;background:var(--bg-panel-elevated);border:1px solid var(--border-strong);border-radius:6px;color:var(--text-primary);padding:6px 8px;font-size:11.5px}.cad-select:focus,.cad-input:focus{outline:2px solid var(--accent);border-color:transparent}.btn-primary-action{background:linear-gradient(135deg,#2563eb,#1d4ed8);border-color:#3b82f6;color:#fff;font-weight:600;width:100%}.btn-primary-action:hover:not(:disabled){background:linear-gradient(135deg,#3b82f6,#2563eb)}.action-toast{font-size:11.5px;padding:8px 10px;border-radius:7px;background:#0ea5e924;border:1px solid rgba(56,189,248,.35);color:#e0f2fe;line-height:1.35}.action-toast.error{background:#ef444426;border-color:#f8717166;color:#fecaca}.audit-dialog{width:min(1140px,94vw);max-height:90vh;background:var(--bg-panel);color:var(--text-primary);border:1px solid var(--border-strong);border-radius:12px;padding:0;box-shadow:0 24px 60px #000000a6;overflow:hidden}.audit-dialog::backdrop{background-color:#020617b8;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.audit-dialog-inner{display:flex;flex-direction:column;max-height:90vh}.audit-dialog-header{display:flex;align-items:center;justify-content:space-between;padding:14px 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6px;font-size:11.5px;color:var(--text-secondary)}.popover-divider{height:1px;margin:4px 2px;background:var(--border-strong)}.popover-item{display:flex;align-items:center;gap:8px;width:100%;padding:6px 8px;font-size:12.5px;color:var(--text-primary);background:transparent;border:0;border-radius:5px;text-align:left;cursor:pointer}.popover-item:hover,.popover-item:focus-visible{background:var(--bg-hover);outline:none}.popover-item:disabled{color:var(--text-muted);opacity:.55;cursor:default;background:transparent}.popover-shortcut{margin-left:auto;padding-left:16px;font-family:inherit;font-size:11px;color:var(--text-muted)}.popover-check{width:12px;color:var(--accent);font-weight:700}.popover-slider{display:flex;align-items:center;gap:8px;padding:6px 8px 6px 28px;font-size:12px;color:var(--text-secondary)}.popover-slider input{flex:1}.toolbar-menu-label{color:var(--text-secondary)}.message-strip{position:absolute;top:10px;left:50%;transform:translate(-50%);z-index:20;max-width:min(640px,80%);padding:8px 14px;font-size:12.5px;line-height:1.35;color:#e0f2fe;background:#082f49eb;border:1px solid rgba(56,189,248,.45);border-radius:8px;box-shadow:0 8px 24px #0006;pointer-events:none;animation:message-in .15s ease-out}.message-strip.error{color:#fecaca;background:#450a0aeb;border-color:#f8717180}@keyframes message-in{0%{opacity:0;transform:translate(-50%,-4px)}}.settings-dialog{width:min(460px,92vw);max-height:86vh;padding:0;color:var(--text-primary);background:var(--bg-panel);border:1px solid var(--border-strong);border-radius:12px;box-shadow:0 24px 60px #000000a6;overflow:hidden}.settings-dialog::backdrop{background-color:#02061799;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.chain-route-dialog::backdrop{background-color:#02061726;-webkit-backdrop-filter:none;backdrop-filter:none}.chain-route-error{color:var(--danger, #f87171);margin-top:8px}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-app);border-bottom:1px solid var(--border-strong);font-size:14px}.settings-body{max-height:calc(86vh - 50px);overflow-y:auto;padding:6px 16px 16px}.settings-section h3{margin:14px 0 6px;font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-muted)}.settings-row,.settings-choice{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px;border-radius:8px;background:var(--bg-panel-elevated);margin-bottom:6px;cursor:pointer}.settings-choice{justify-content:flex-start}.settings-row-text,.settings-choice>span{display:flex;flex-direction:column;gap:2px}.settings-row-label{font-size:13px}.settings-row-hint,.settings-note{font-size:11.5px;color:var(--text-secondary)}.settings-note{margin:0 0 6px}.settings-switch{width:34px;height:18px;flex-shrink:0}.settings-slider-row{padding:8px 10px;border-radius:8px;background:var(--bg-panel-elevated);margin-bottom:6px;transition:opacity .15s ease}.settings-slider-row.is-disabled{opacity:.45;pointer-events:none}.settings-slider-label{display:flex;flex-direction:column;gap:8px;cursor:pointer}.settings-slider-wrap{display:flex;align-items:center;gap:10px}.settings-slider-wrap input[type=range]{flex:1;accent-color:var(--accent, #3b82f6);cursor:pointer}.settings-slider-val{min-width:44px;text-align:right;font-size:12px;font-variant-numeric:tabular-nums;color:var(--text-secondary)}.build-name,.build-name-input{max-width:180px;margin-left:6px;padding:3px 8px;font:inherit;font-size:12.5px;font-weight:500;color:var(--text-primary);background:transparent;border:1px solid transparent;border-radius:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.build-name{cursor:text}.build-name:hover{border-color:var(--border-strong);background:var(--bg-panel-elevated)}.build-name-input{border-color:var(--accent);background:var(--bg-app);outline:none}.popover-submenu-label{display:inline-flex;align-items:center;justify-content:space-between;gap:16px;width:100%}.popover-submenu{margin:0 0 2px 22px;padding-left:6px;border-left:1px solid var(--border-strong)}.library-dialog{width:min(860px,94vw);max-height:86vh;padding:0;color:var(--text-primary);background:var(--bg-panel);border:1px solid var(--border-strong);border-radius:12px;box-shadow:0 24px 60px #000000a6;overflow:hidden}.library-dialog::backdrop{background-color:#02061799;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.library-body{max-height:calc(86vh - 56px);overflow-y:auto;padding:14px 16px 18px}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}.library-card{display:flex;flex-direction:column;gap:8px;padding:8px;background:var(--bg-panel-elevated);border:1px solid var(--border-strong);border-radius:10px;cursor:default}.library-card.current{border-color:var(--accent)}.library-thumb{aspect-ratio:3 / 2;border-radius:6px;overflow:hidden;background:var(--bg-app);display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--text-muted)}.library-thumb img{width:100%;height:100%;object-fit:cover}.library-info{display:flex;flex-direction:column;gap:2px;min-width:0}.library-name{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.library-current{font-size:10px;font-weight:600;padding:1px 6px;border-radius:999px;color:#bfdbfe;background:#3b82f640}.library-meta{font-size:11.5px;color:var(--text-secondary)}.library-actions{display:flex;align-items:center;gap:4px}.library-actions .btn{flex:1;padding:4px 8px}.icon-btn.danger:hover{color:#fca5a5}.explode-panel{position:absolute;top:52px;left:12px;z-index:15;width:260px;padding:8px 10px;display:flex;flex-direction:column;gap:8px;background:var(--bg-panel-elevated);border:1px solid var(--border-strong);border-radius:8px;box-shadow:0 12px 32px #00000080;font-size:12.5px;color:var(--text-primary)}.explode-panel-row{display:flex;align-items:center;gap:8px}.explode-panel-title{font-weight:600;color:#38bdf8}.explode-close{display:flex;margin-left:auto;padding:4px;color:var(--text-secondary);background:transparent;border:0;border-radius:4px;cursor:pointer}.explode-close:hover{color:var(--text-primary);background:var(--bg-hover)}.explode-slider{flex:1;accent-color:#38bdf8}.explode-percent{width:38px;text-align:right;font-variant-numeric:tabular-nums;color:var(--text-secondary)}.explode-busy{display:flex;align-items:center;gap:6px;font-size:11.5px;color:#93c5fd}.explode-ring{flex:none}.explode-ring.spinning{animation:explode-ring-spin .9s linear infinite}.explode-ring-track,.explode-ring-fill{fill:none;stroke-width:2.5}.explode-ring-track{stroke:#93c5fd40}.explode-ring-fill{stroke:#93c5fd;stroke-linecap:round;transition:stroke-dashoffset .25s ease-out}@keyframes explode-ring-spin{to{transform:rotate(360deg)}}