:root{--bg: #f7f7f5;--bg-raised: #ffffff;--bg-input: #f5f5f3;--border: #ebebe9;--border-strong: #dddddb;--text: #141414;--text-muted: #454545;--text-faint: #6b6b6b;--accent: #ff716b;--accent-wash: #ffe9e7;--accent-warm: #d98a00;--construction: #cc6a2e;--construction-wash: #fdf1e7;--driving: #0a6ad4;--driving-wash: #eaf4ff;--solved: #00a699;--solved-wash: #e2f7f5;--warn: #d9304a;--warn-wash: #fdecef;--datum: #6f4fd0;--radius-sm: 9px;--radius-md: 12px;--radius-lg: 18px;--radius-pane: 22px;--glass: color-mix(in srgb, #ffffff 54%, transparent);--glass-strong: color-mix(in srgb, #ffffff 68%, transparent);--glass-blur: blur(32px) saturate(190%);--glass-edge: rgba(255, 255, 255, .7);--glass-rim: rgba(20, 20, 20, .08);--shadow-sm: 0 1px 2px rgba(20, 20, 20, .05), 0 1px 1px rgba(20, 20, 20, .04);--shadow-md: 0 8px 24px rgba(20, 20, 20, .1), 0 2px 6px rgba(20, 20, 20, .06);--shadow-float: 0 16px 48px rgba(20, 20, 20, .13), 0 2px 8px rgba(20, 20, 20, .07);--ease: cubic-bezier(.32, .72, 0, 1);--pane-inset: 16px;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:13px;overflow:hidden}button{font:inherit;color:inherit;cursor:pointer}.app{position:relative;height:100%;overflow:hidden}.stage{position:absolute;inset:0;overflow:hidden}.float-layer{position:absolute;inset:0;pointer-events:none;z-index:3}.float-layer>*{pointer-events:auto}.app-badge{position:absolute;top:var(--pane-inset);left:var(--pane-inset);display:flex;width:40px;height:40px;border-radius:12px}.app-badge .cad-mark,.app-badge .cad-mark-badge{width:40px;height:40px}.demo-banner{position:absolute;top:var(--pane-inset);left:calc(var(--pane-inset) + 40px + 10px);right:calc(var(--pane-inset) + 56px);display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding:8px 10px 8px 16px;border-radius:14px}.demo-banner-copy{display:flex;flex-direction:column;gap:1px;min-width:0}.demo-banner-copy strong{font-size:13px;font-weight:650}.demo-banner-copy span{font-size:12px;color:var(--text-faint)}.demo-banner-actions{display:flex;align-items:center;gap:8px;flex:none}.demo-banner-back{font-size:13px;font-weight:550;color:var(--text-muted);text-decoration:none;padding:6px 10px}.demo-banner-import{font:inherit;font-size:13px;font-weight:650;color:#fff;background:var(--accent);border:none;border-radius:999px;padding:7px 14px;cursor:pointer}@media(max-width:640px){.demo-banner{left:var(--pane-inset);right:var(--pane-inset);top:calc(var(--pane-inset) + 40px + 8px);flex-wrap:wrap}}.isolate-dock{position:absolute;top:var(--pane-inset);left:calc(var(--pane-inset) + 40px + 10px);display:flex;align-items:center;gap:12px;min-height:40px;padding:6px 8px 6px 14px;border-radius:14px}.app:has(.demo-banner) .isolate-dock{top:calc(var(--pane-inset) + 40px + 8px)}.isolate-dock-copy{display:flex;flex-direction:column;gap:1px;min-width:0}.isolate-dock-copy strong{font-size:13px;font-weight:650}.isolate-dock-copy span{font-size:12px;color:var(--text-faint)}.isolate-dock-actions{display:flex;align-items:center;gap:6px;flex:none}.isolate-dock-actions button{margin:0;padding:6px 10px;border:none;border-radius:999px;background:transparent;color:var(--text-muted);font:inherit;font-size:12px;font-weight:550;cursor:pointer}.isolate-dock-actions button:hover{background:var(--bg-input);color:var(--text)}.isolate-dock-actions button.is-active{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--text)}.isolate-dock-exit{background:var(--bg-input)!important;color:var(--text)!important;font-weight:650!important}@media(max-width:640px){.isolate-dock{left:var(--pane-inset);right:var(--pane-inset);top:calc(var(--pane-inset) + 40px + 8px);flex-wrap:wrap}.app:has(.demo-banner) .isolate-dock{top:calc(var(--pane-inset) + 40px + 8px + 56px)}}.glass{background:var(--glass);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-rim);border-top-color:var(--glass-edge);box-shadow:var(--shadow-float);border-radius:var(--radius-pane)}.dock-stack{position:absolute;left:var(--pane-inset);right:var(--pane-inset);bottom:calc(var(--pane-inset) + env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.dock-stack>*,.dock-row>*{pointer-events:auto}.dock-row{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;width:100%;pointer-events:none}.history-slot{display:flex;flex-direction:column;align-items:center;gap:8px;flex:0 0 auto}.toolbar{display:flex;align-items:center;gap:4px;padding:6px;flex:0 1 auto;min-width:0;overflow-x:auto;overflow-y:visible}.mini-dock{display:flex;align-items:center;gap:2px;padding:6px;flex:0 0 auto}.mini-dock .tool-button{width:auto;min-width:44px;height:auto;padding:5px 7px 4px;border-radius:11px}.mini-dock .tool-label{display:block;font-size:9px;font-weight:550;line-height:1.15;letter-spacing:0}.mini-dock .tool-key{display:none}.toolbar-group{display:flex;align-items:center;gap:2px}.toolbar-group+.toolbar-group,.toolbar-group--pinned{margin-left:6px;padding-left:8px;border-left:1px solid var(--glass-rim)}.toolbar-scroll{display:contents}.toolbar-group--end{margin-top:auto}.toolbar-group-title{margin:0 1px 4px;font-size:10px;font-weight:650;letter-spacing:.07em;text-transform:uppercase;color:var(--text-faint)}.tool-button{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;width:100%;height:54px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--text-muted);transition:background .12s ease,color .12s ease}.tool-button:hover:not(:disabled){background:var(--bg-input);color:var(--text);box-shadow:var(--shadow-sm)}.tool-button:disabled{opacity:.35;cursor:default}.tool-button.is-active{background:var(--accent-wash);border-color:var(--accent);color:var(--accent)}.tool-button.is-construction{background:var(--construction-wash);border-color:var(--construction);color:var(--construction)}.tool-icon{display:block;width:22px;height:22px}.tool-icon svg{display:block;width:100%;height:100%}.tool-glyph{font-size:21px;line-height:1}.tool-glyph--text{font-size:11px;font-weight:600;letter-spacing:.03em}.tool-label{font-size:10px;font-weight:550;line-height:1.1;letter-spacing:.01em;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-more{position:absolute;top:1px;right:5px;font-size:11px;line-height:1;color:var(--text-faint);pointer-events:none}.tool-button.is-active .tool-more{color:inherit}.tool-button.is-dim .tool-icon,.tool-button.is-dim .tool-label{opacity:.35}.tool-key{position:absolute;top:3px;right:4px;padding:0 3px;border-radius:3px;background:#0000000f;font-family:var(--mono);font-size:9px;font-weight:500;line-height:1.4;color:var(--text-faint)}@media(hover:none){.tool-key{display:none}}@media(max-width:640px){.dock-row{flex-wrap:wrap;row-gap:8px}.toolbar{order:1;flex:1 1 100%;padding:4px}.mini-dock{padding:4px}.mini-dock .tool-button{width:52px;height:48px;padding:4px 2px}.toolbar .toolbar-group .tool-label,.mini-dock .tool-label{display:block;font-size:8.5px;font-weight:550;line-height:1.15;letter-spacing:0}.toolbar{overflow:visible}.toolbar-scroll{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;overflow-x:auto;overflow-y:visible;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;scrollbar-width:none;mask-image:linear-gradient(to right,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%)}.toolbar-scroll::-webkit-scrollbar{display:none}.toolbar-scroll .tool-button{flex:0 0 auto;width:50px;scroll-snap-align:center}.toolbar .tool-button{height:50px;padding:4px 3px}.toolbar-group--pinned{flex:0 0 auto}}.viewport{position:absolute;inset:0;touch-action:none;cursor:default}.viewport.is-sketch-editing{cursor:crosshair}.viewport.is-navigating{cursor:grabbing}.viewport-canvas{display:block;width:100%;height:100%}.viewport-error{position:absolute;inset:0;display:grid;place-items:center;padding:40px;max-width:460px;margin:0 auto;text-align:center;color:var(--warn);line-height:1.6}.overlay{position:absolute;inset:0;pointer-events:none}.overlay>*{pointer-events:auto}.view-cube-control{position:absolute;top:84px;right:var(--pane-inset);width:92px;overflow:hidden;border:1px solid var(--glass-rim);border-radius:14px;background:var(--glass);box-shadow:var(--shadow-sm);backdrop-filter:var(--glass-blur)}.view-cube-control.is-locked{border-color:color-mix(in srgb,var(--accent) 28%,var(--glass-rim))}.view-cube-control.has-advanced{right:calc(var(--pane-inset) + 272px + 12px)}@media(max-width:900px){.view-cube-control.has-advanced{right:var(--pane-inset)}}@media(max-width:640px){.view-cube-control{top:76px;width:72px}}.view-cube{display:block;overflow:visible;touch-action:none;cursor:grab}.view-cube:active{cursor:grabbing}.view-cube-modes{display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:4px;border-top:1px solid var(--glass-rim)}.view-cube-modes button{min-width:0;padding:4px 0;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--text-faint);font:inherit;font-size:9px;font-weight:750;letter-spacing:.06em;cursor:pointer}.view-cube-modes button:hover,.view-cube-modes button:focus-visible{border-color:var(--border-strong);color:var(--text);outline:none}.view-cube-modes button.is-active{border-color:color-mix(in srgb,var(--accent) 36%,var(--glass-rim));background:var(--accent-wash);color:var(--accent)}.view-cube-face{stroke:var(--border-strong);stroke-width:1;cursor:pointer;transition:fill .1s ease,opacity .1s ease}.view-cube-face.is-visible{fill:#ffffffeb}.view-cube-face.is-hidden{fill:#dce1e65c;opacity:.42}.view-cube [data-viewcube-target]:focus{outline:none}.view-cube-face.is-active,.view-cube-face:hover,.view-cube-face:focus-visible{fill:var(--accent-wash);stroke:var(--accent);opacity:1;outline:none}.view-cube-label{fill:var(--text-muted);font-size:9px;font-weight:650;pointer-events:none}.view-cube-edge-target{fill:none;stroke:transparent;stroke-width:12px;stroke-linecap:round;pointer-events:stroke;cursor:pointer}.view-cube-edge-target.is-hidden,.view-cube-corner-target.is-hidden{pointer-events:none}.view-cube-edge-target.is-active,.view-cube-edge-target:hover,.view-cube-edge-target:focus-visible{stroke:var(--accent);stroke-opacity:.72;outline:none}.view-cube-corner-target{fill:transparent;stroke:transparent;stroke-width:2px;cursor:pointer}.view-cube-corner-target.is-active,.view-cube-corner-target:hover,.view-cube-corner-target:focus-visible{fill:var(--accent);stroke:#fff;outline:none}.face-context{position:absolute;z-index:4;transform:translate(44px,12px);display:flex;flex-direction:column;align-items:flex-start;gap:4px}.face-context-action{padding:6px 10px;border:1px solid var(--accent-warm);border-radius:9px;color:var(--text);font-size:11px;font-weight:600;white-space:nowrap}.face-context-action:hover{background:var(--accent-wash)}.face-context-action.is-active{background:var(--accent-wash);border-color:var(--accent);color:var(--accent)}.sketch-look{position:absolute;z-index:4}.card-handle{position:absolute;z-index:6;width:12px;height:12px;margin:-6px 0 0 -6px;padding:0;border:1.5px solid var(--accent-warm);border-radius:3px;background:var(--bg-raised);cursor:nwse-resize}.sticky-note{position:absolute;z-index:5;display:flex;flex-direction:column;padding:10px 10px 8px;border-radius:2px 2px 3px 3px;box-shadow:0 1px #ffffff59 inset,0 8px 18px #281c082e;transform:rotate(-1.2deg)}.sticky-note-text{flex:1;width:100%;min-height:0;border:none;resize:none;background:transparent;color:#3a3220;font:inherit;font-weight:550;line-height:1.25}.sticky-note-text:focus{outline:none}.sticky-note-swatches{display:flex;align-items:center;gap:4px;margin-top:6px}.sticky-note-done{margin-right:auto;padding:2px 8px;border:1px solid rgba(40,32,16,.3);border-radius:99px;background:#ffffff73;color:#3a3220;font-size:11px;font-weight:600}.sticky-swatch{width:12px;height:12px;padding:0;border:1px solid rgba(40,32,16,.25);border-radius:99px}.sticky-swatch.is-on{outline:2px solid var(--accent);outline-offset:1px}.image-scale-start,.note-edit-start{position:absolute;left:50%;top:64px;z-index:6;transform:translate(-50%)}.image-scale-card{position:absolute;left:50%;top:64px;z-index:7;transform:translate(-50%);display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:12px}.image-scale-card label{display:flex;align-items:center;gap:8px;font-size:12px}.image-scale-card input{width:88px;padding:4px 6px;border:1px solid var(--border-strong);border-radius:6px;background:var(--bg-input);color:var(--text);font:inherit}.image-scale-card button{border:none;border-radius:999px;padding:6px 12px;background:var(--accent);color:#fff;font:inherit;font-weight:650}.extrusion-manipulator{position:absolute;inset:0;z-index:3;overflow:visible;pointer-events:none;touch-action:none}.extrusion-arrow-line{stroke:var(--accent-warm);stroke-width:2.2px;stroke-linecap:round;pointer-events:none}.extrusion-arrow-head,.extrusion-centre{fill:var(--accent-warm);stroke:#fff;stroke-width:1.2px;pointer-events:none}.extrusion-stub{opacity:.72}.extrusion-depth-readout{fill:var(--text);paint-order:stroke;stroke:#fffffff0;stroke-width:4px;stroke-linejoin:round;font-family:var(--mono);font-size:11px;pointer-events:none}.extrusion-arrow-target{pointer-events:all;cursor:ns-resize;outline:none;touch-action:none}.extrusion-arrow-target line{stroke:transparent;stroke-width:30px;stroke-linecap:round}.extrusion-arrow-target circle{fill:transparent;stroke:transparent}.placement-gizmo{position:absolute;inset:0;z-index:3;overflow:visible;pointer-events:none;touch-action:none}.gizmo-arm{stroke-width:2.2px;stroke-linecap:round;fill:none}.gizmo-head{stroke:#ffffffe6;stroke-width:1px}.gizmo-arm.is-x{stroke:#c8443f}.gizmo-arm.is-y{stroke:#2f8f5b}.gizmo-arm.is-z{stroke:#4a6fc4}.gizmo-head.is-x{fill:#c8443f}.gizmo-head.is-y{fill:#2f8f5b}.gizmo-head.is-z{fill:#4a6fc4}.gizmo-ring{fill:none;stroke:#4a6fc4;stroke-width:1.8px;opacity:.85}.gizmo-centre{fill:var(--bg-raised);stroke:var(--accent-warm);stroke-width:2px}.gizmo-locked-dot{fill:var(--bg-raised);stroke:var(--text-faint);stroke-width:2px}.gizmo-readout{fill:var(--text-muted);paint-order:stroke;stroke:#fffffff0;stroke-width:4px;stroke-linejoin:round;font-family:var(--mono);font-size:11px;pointer-events:none}.gizmo-target-group,.gizmo-locked{pointer-events:all;cursor:grab;outline:none;touch-action:none}.gizmo-locked{cursor:not-allowed}.gizmo-target-group:active{cursor:grabbing}.gizmo-target{fill:transparent;stroke:transparent;stroke-width:20px}.gizmo-ring-target{fill:none;stroke:transparent;stroke-width:16px}.gizmo-target-group:focus-visible .gizmo-target,.gizmo-target-group:focus-visible .gizmo-ring-target{stroke:var(--accent-warm);stroke-width:2px}.dimension-label{position:absolute;top:0;left:0;padding:1px 5px;border:1px solid transparent;border-radius:6px;background:#ffffffeb;box-shadow:var(--shadow-sm);font-family:var(--mono);font-size:10.5px;font-weight:500;line-height:1.25;letter-spacing:-.01em;white-space:nowrap;backdrop-filter:blur(4px)}.dimension-label.is-preview{color:var(--text-muted);border-color:var(--border);border-style:dashed;opacity:.75;pointer-events:none}.dimension-label.is-driving{color:var(--driving);border-color:#cfe6ff}.dimension-label.is-reference{color:var(--text-muted);border-color:var(--border);font-style:italic}.dimension-label.is-selected{border-color:var(--accent-warm);color:var(--accent-warm)}.dimension-input{position:absolute;top:0;left:0;width:132px;padding:2px 6px;border:1px solid var(--accent);border-radius:var(--radius-sm);background:var(--bg-raised);color:var(--text);font-family:var(--mono);font-size:11px;outline:none;box-shadow:var(--shadow-sm)}.dof-badge{position:absolute;right:12px;bottom:12px;padding:4px 10px;border:1px solid var(--border-strong);border-radius:999px;background:#ffffffeb;box-shadow:var(--shadow-sm);color:var(--accent);font-family:var(--mono);font-size:12px;font-weight:500}.dof-badge.is-solved{color:var(--solved);border-color:#a9e6df}.datum-label{position:absolute;transform:translate(-50%,-50%);font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.02em;color:var(--datum);text-shadow:0 0 3px rgba(255,255,255,.95),0 0 6px rgba(255,255,255,.85);pointer-events:none;white-space:nowrap}.datum-label.is-hover{color:var(--accent);font-weight:700}.panel{position:absolute;right:var(--pane-inset);top:var(--pane-inset);width:272px;max-height:calc(100% - var(--pane-inset) * 2 - 84px);display:flex;flex-direction:column;gap:2px;padding:6px 0 0;overflow-y:auto;overscroll-behavior:contain}.panel--advanced{top:calc(var(--pane-inset) + 48px + 10px);max-height:calc(100% - var(--pane-inset) * 2 - 84px - 58px)}.panel-section{padding:8px 12px 12px;border-bottom:1px solid var(--border)}.panel-section--footer{margin-top:auto;border-bottom:none;color:var(--text-muted)}.panel h2{display:flex;align-items:center;gap:6px;margin:0 0 8px;font-size:11px;font-weight:650;letter-spacing:.07em;text-transform:uppercase;color:var(--text-faint)}.panel-count{padding:1px 6px;border-radius:999px;background:var(--bg-input);color:var(--text-muted);font-family:var(--mono);font-size:10px;letter-spacing:0}.panel-empty{margin:0;color:var(--text-muted);font-size:12px}.panel-list{display:flex;flex-direction:column;gap:2px;margin:0;padding:0;list-style:none}.panel-row{display:flex;align-items:center;gap:6px;padding:3px 4px;border-radius:6px;font-size:12px}.panel-row:hover{background:var(--bg-input)}.panel-row-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.panel-row-value{font-family:var(--mono);font-size:11px;color:var(--text-muted)}.panel-row-value--muted{color:var(--text-muted)}.panel-row-value.is-solved{color:var(--solved)}.panel-chip{flex:none;padding:1px 7px;border:1px solid var(--border-strong);border-radius:999px;background:transparent;color:var(--text-muted);font-size:10px;font-weight:550;letter-spacing:.01em}.panel-chip.is-driving{color:var(--driving);background:var(--driving-wash);border-color:#cfe6ff}.panel-chip.is-reference{color:var(--text-muted);font-style:italic}.panel-remove{border:none;background:transparent;color:var(--text-muted);font-size:14px;line-height:1;padding:0 2px}.panel-remove:hover{color:var(--warn)}.panel-row--stacked{flex-direction:column;align-items:stretch;gap:4px}.panel-row-line{display:flex;align-items:center;gap:8px;min-width:0}.panel-action{border:1px solid var(--border-strong);border-radius:6px;background:transparent;color:var(--text-muted);font-size:11px;padding:2px 8px}.panel-action:hover{color:var(--text);background:var(--bg-input)}.panel-action--warn:hover{color:var(--warn)}.placement-group+.placement-group{margin-top:10px}.placement-row .extent-name{width:18px;flex:none;font-family:var(--mono);font-size:10.5px}.status-bar{display:flex;align-items:center;gap:10px;max-width:100%;padding:5px 12px;border-radius:var(--radius-lg);font-size:11.5px;color:var(--text-faint);opacity:.9}.status-isolate{flex:0 0 auto;margin:0;padding:2px 8px;border:none;border-radius:6px;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--text);font:inherit;cursor:pointer}.status-isolate:hover{background:color-mix(in srgb,var(--accent) 26%,transparent)}.status-message{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.status-stat,.status-dof{font-family:var(--mono);font-size:11px;white-space:nowrap}.status-dof{color:var(--accent)}.status-dof.is-quiet{color:var(--text-muted)}.status-message.is-warn{color:var(--warn)}.status-right{display:flex;align-items:center;gap:14px}.status-toggle,.status-field{display:flex;align-items:center;gap:5px;color:var(--text-muted);cursor:pointer}.status-field select,.status-field input{border:1px solid var(--border-strong);border-radius:4px;background:var(--bg-input);color:var(--text);font:inherit;padding:1px 4px}.status-field input[type=number]{width:48px}.status-toggle input{accent-color:var(--accent);margin:0}.status-stat{font-family:var(--mono);color:var(--text-muted)}.status-dof{font-family:var(--mono);color:var(--accent)}.status-dof.is-solved{color:var(--solved)}@media(max-width:900px){.panel--advanced{display:none}}.selection-popup{position:absolute;top:0;left:0;display:flex;flex-direction:column;gap:6px;padding:7px;border:1px solid var(--glass-rim);border-top-color:var(--glass-edge);border-radius:var(--radius-lg);background:var(--glass-strong);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);box-shadow:var(--shadow-md);z-index:5}.selection-popup-section+.selection-popup-section{border-top:1px solid var(--border);padding-top:6px}.selection-popup-title{margin:0 2px 5px;font-size:10px;font-weight:650;letter-spacing:.07em;text-transform:uppercase;color:var(--text-faint)}.selection-popup-row{display:flex;gap:4px}.selection-popup-btn{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:58px;padding:6px 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