:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f5f6f8;color:#1f2328;font-synthesis:none;text-rendering:geometricPrecision;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0}button,input{font:inherit}button{border:0}.app-shell{display:grid;grid-template-rows:52px 1fr;width:100%;height:100%;overflow:hidden;background:#f5f6f8}.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;min-width:0;padding:0 14px;border-bottom:1px solid #d9dde3;background:#fff}.brand{display:flex;align-items:center;gap:10px;min-width:220px}.brand-mark{display:grid;place-items:center;width:28px;height:28px;border-radius:7px;background:#24292f;color:#fff;font-size:14px;font-weight:700}.brand strong,.brand span{display:block;line-height:1.1;white-space:nowrap}.brand strong{font-size:13px}.brand div>span{margin-top:3px;color:#6b7280;font-size:11px}.toolbar,.top-actions{display:flex;align-items:center;gap:6px}.history-actions{display:flex;overflow:hidden;border:1px solid #d6dae1;border-radius:7px;background:#fff}.history-button{display:grid;place-items:center;width:34px;height:30px;color:#374151;background:transparent;cursor:pointer}.history-button+.history-button{border-left:1px solid #d6dae1}.history-button:hover{background:#edf4ff;color:#174ea6}.history-button:disabled{color:#9ca3af;background:transparent;cursor:not-allowed}.history-button:not(:disabled){line-height:1}.history-button svg{width:18px;height:18px}.topbar-icon-button{display:grid;place-items:center;width:34px;height:30px;border:1px solid #d6dae1;border-radius:7px;color:#374151;background:#fff;cursor:pointer}.topbar-icon-button:hover,.topbar-icon-button.active{background:#edf4ff;color:#174ea6}.topbar-icon-button svg{width:18px;height:18px}.toolbar{padding:4px;border:1px solid #d9dde3;border-radius:8px;background:#f7f8fa}.tool-button{display:grid;place-items:center;width:32px;height:32px;border-radius:6px;color:#374151;background:transparent;cursor:pointer}.tool-button span{display:grid;place-items:center;line-height:1}.tool-button svg{width:18px;height:18px}.tool-button:hover,.tool-button.active{background:#e8eefb;color:#0f4db8}.segmented{display:flex;overflow:hidden;border:1px solid #d6dae1;border-radius:7px;background:#f8fafc}.segmented button{min-width:38px;padding:6px 9px;color:#4b5563;background:transparent;cursor:pointer}.segmented button.active{color:#111827;background:#fff;box-shadow:inset 0 0 0 1px #cfd5dd}.zoom-controls{display:grid;grid-template-columns:28px 48px 28px;align-items:center;overflow:hidden;border:1px solid #d6dae1;border-radius:7px;background:#fff}.zoom-controls button{height:30px;color:#374151;background:transparent;cursor:pointer}.zoom-controls button:hover{background:#edf4ff;color:#174ea6}.zoom-controls span{color:#4b5563;font-size:12px;text-align:center}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:32px;padding:0 10px;border-radius:7px;color:#24292f;background:#edf0f4;cursor:pointer}.button:hover{background:#e1e6ed}.button:disabled{color:#9ca3af;background:#edf0f4;cursor:not-allowed}.button.success{width:100%;color:#166534;background:#f0fdf4;border:1px solid #bbf7d0}.button.success:hover{background:#dcfce7}.button.success:disabled{color:#9ca3af;background:#f3f4f6;border-color:#e5e7eb}.button.ghost{background:transparent;border:1px solid #d6dae1}.button.danger{display:inline-flex;width:100%;color:#9f1239;background:#fff1f2;border:1px solid #fecdd3}.keycap{display:inline-grid;place-items:center;min-width:18px;height:16px;padding:0 4px;border-radius:4px;border:1px solid currentColor;font-size:10px;font-weight:700;line-height:1}.workspace{display:grid;grid-template-columns:240px minmax(0,1fr) 300px;min-height:0}.sidebar{display:flex;flex-direction:column;gap:18px;min-width:0;padding:14px;overflow:auto;border-right:1px solid #d9dde3;background:#fff}.inspector{border-right:0;border-left:1px solid #d9dde3}.panel-title{margin-bottom:8px;color:#4b5563;font-size:11px;font-weight:700;letter-spacing:0;text-transform:uppercase}.layer-list,.seam-list{display:grid;gap:4px}.layer-row{display:grid;grid-template-columns:22px minmax(0,1fr);align-items:center;width:100%;min-height:34px;padding:0 9px;border-radius:7px;color:#374151;text-align:left;background:transparent;cursor:pointer}.layer-row span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.layer-row:hover,.layer-row.active{background:#edf4ff;color:#174ea6}.layer-icon{display:grid;place-items:center;color:#6b7280}.layer-icon svg{width:16px;height:16px}.muted{margin:0;color:#7b8493;font-size:12px;line-height:1.45}.seam-row{display:grid;grid-template-columns:12px 16px minmax(0,1fr);align-items:center;gap:8px;min-height:30px;color:#374151;font-size:12px}.seam-row span:not(.seam-chip):not(.seam-link-icon):not(.seam-link-placeholder){overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.seam-row.compact{margin-top:4px}.seam-button{width:100%;padding:0 9px;border-radius:7px;text-align:left;background:transparent;cursor:pointer}.seam-button:hover,.seam-button.active{background:#edf4ff;color:#174ea6}.seam-chip{width:8px;height:8px;border-radius:999px}.seam-link-icon,.seam-link-placeholder{display:grid;place-items:center;width:16px;min-width:0}.seam-link-icon{color:#2563eb;font-size:12px;line-height:1}.inspector-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.inspector-header .panel-title{margin-bottom:0}.section-heading{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px}.section-heading .panel-title{margin-bottom:3px}.section-heading-icon{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;color:#374151;background:#f3f4f6;flex:none}.section-heading-icon svg{width:18px;height:18px}.inspector-back{width:32px;min-width:32px;height:32px;padding:0;font-size:18px;line-height:1}.seam-status{margin:0;padding:9px 10px;border-radius:7px;font-size:12px;font-weight:600}.seam-status.linked{color:#174ea6;background:#edf4ff}.seam-status.unlinked{color:#7c2d12;background:#fff7ed}.project-settings-panel .field{margin-bottom:14px}.project-settings-panel .segmented{width:fit-content}.icon-button{display:grid;place-items:center;width:22px;height:22px;border-radius:5px;color:#6b7280;background:transparent;cursor:pointer}.icon-button:hover{color:#111827;background:#eef2f7}.icon-button.danger:hover{color:#9f1239;background:#fff1f2}.canvas-wrap{position:relative;min-width:0;min-height:0;overflow:hidden;background:#f2f4f7}.drafting-canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}.drafting-canvas.panning{cursor:grab}.drafting-canvas.dragging{cursor:grabbing}.canvas-status{position:absolute;z-index:2;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;gap:10px;pointer-events:none}.canvas-status span,.floating-error{max-width:min(560px,100%);padding:7px 10px;border:1px solid rgb(209 213 219 / 82%);border-radius:7px;color:#374151;background:#ffffffeb;box-shadow:0 12px 32px #0f172a14;font-size:12px}.floating-error{position:absolute;left:12px;bottom:12px;color:#9f1239;border-color:#fecdd3;background:#fff1f2}.floating-seam-actions{position:absolute;right:12px;bottom:12px;z-index:2;-webkit-user-select:none;user-select:none}.floating-seam-actions.with-dimensions{bottom:60px}.draft-dimensions-hud{position:absolute;right:12px;bottom:12px;z-index:2;display:flex;gap:6px;padding:6px;border:1px solid rgb(209 213 219 / 82%);border-radius:7px;background:#fffffff0;box-shadow:0 12px 32px #0f172a14;pointer-events:none}.draft-dimensions-hud span{display:flex;align-items:center;gap:5px;min-width:74px;padding:5px 7px;border-radius:5px;color:#4b5563;font-size:12px}.draft-dimensions-hud span.active{color:#174ea6;background:#edf4ff}.draft-dimensions-hud span.modifier-hint{min-width:0}.draft-dimensions-hud span.modifier-hint .keycap{color:inherit}.seam-dimensions-hud{max-width:min(420px,calc(100% - 24px))}.draft-dimensions-hud strong{color:#111827;font-size:11px}.panel-shape{fill:#f9fbfd;stroke:#1f2937;stroke-width:1.4;cursor:grab}.panel-shape:hover{fill:#f1f7ff}.panel-shape.selected{stroke:#2563eb;fill:#eff6ff}.panel-shape.seam-target{cursor:crosshair}.panel-labels{pointer-events:visiblePainted;-webkit-user-select:none;user-select:none}.editable-dimension-label{cursor:text;pointer-events:all}.dimension-label-editor{position:absolute;z-index:3;display:flex;align-items:center;height:30px;gap:4px;padding:4px 7px;border:1px solid #2563eb;border-radius:4px;background:#fffffff5;box-shadow:0 8px 18px #0f172a29;color:#374151;font-size:12px;line-height:1;pointer-events:all;transform:translate(-50%,-50%)}.dimension-label-editor input{width:100%;min-width:0;border:0;outline:none;background:transparent;color:#111827;font:inherit;font-weight:700}.dimension-label-editor span{flex:none;color:#6b7280;font-weight:700}.panel-name-label,.edge-length-label,.circle-perimeter-label,.circle-diameter-label{fill:#374151;stroke:#ffffffdb;stroke-width:.18px;paint-order:stroke;letter-spacing:0}.panel-name-label{font-size:.82px;font-weight:700;pointer-events:none}.edge-length-label,.circle-perimeter-label,.circle-diameter-label{fill:#4b5563;font-size:.58px;font-weight:600}.selection-box{fill:none;stroke:#2563eb;stroke-dasharray:.45 .32;stroke-width:1;pointer-events:none}.handle{fill:#fff;stroke:#2563eb;stroke-width:1.4;cursor:move}.handle.square{cursor:nwse-resize}.draft-outline{fill:#2563eb17;stroke:#2563eb;stroke-dasharray:.55 .35;stroke-width:1.3;pointer-events:none}.polygon-start-marker{fill:#fff;stroke:#2563eb;stroke-width:1.5;cursor:pointer;pointer-events:all}.polygon-start-marker.active{fill:#dbeafe;stroke-width:2.2}.polygon-dimensions-hud span{min-width:86px}.range-overlay{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-width:4;pointer-events:none}.range-overlay.dashed{stroke-dasharray:.7 .4}.pending-marker{fill:#fff;stroke:#111827;stroke-width:1.4;pointer-events:none}.pending-marker.hover{fill:#fff;stroke:#2563eb;stroke-width:1.6}.field{display:grid;gap:5px;min-width:0;margin-bottom:10px}.field span{color:#6b7280;font-size:11px;font-weight:600}.field input,.point-row input{width:100%;min-width:0;height:32px;padding:0 8px;border:1px solid #d6dae1;border-radius:6px;color:#111827;background:#fff;outline:none}.field input:focus,.point-row input:focus{border-color:#60a5fa;box-shadow:0 0 0 3px #60a5fa2e}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.meta-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px;color:#6b7280;font-size:12px}.points-table{display:grid;gap:6px}.point-row{display:grid;grid-template-columns:30px 1fr 1fr;align-items:center;gap:6px}.point-row span{color:#6b7280;font-size:11px;font-weight:700}@media(max-width:920px){.workspace{grid-template-columns:190px minmax(0,1fr)}.inspector{position:absolute;right:0;top:52px;bottom:0;width:min(300px,76vw);box-shadow:-16px 0 36px #0f172a1a}.brand{min-width:0}.brand div>span{display:none}}@media(max-width:700px){.topbar{gap:8px;padding:0 8px}.brand strong{display:none}.workspace{grid-template-columns:1fr}.left-panel{display:none}.toolbar{max-width:46vw;overflow-x:auto}.canvas-status{flex-direction:column;align-items:flex-start}}