:root{--ink:#17252b;--ink-soft:#4e6265;--ink-faint:#7a8c8e;--surface:#fff;--surface-sunk:#f4f6f4;--canvas:#e7ebea;--line:#cfdada;--line-strong:#aebfc0;--accent:#176a68;--accent-ink:#fff;--brand-ink:#1a2c3f;--brand-blue:#0075fe;--danger:#a24232;--ok-bg:#e4efe8;--ok-ink:#2f5c4a;--error-bg:#f7e6e0;--error-ink:#8a3427;--cut:#cc4b37;--score-down:#1673a3;--score-up:#82527c;--tab:#2f8f6b;--radius:5px;--font:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--mono:"IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;font-family:var(--font);color:var(--ink);background:var(--canvas);font-synthesis:none}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input,select{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.sr-only{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{grid-template-columns:minmax(280px,350px) minmax(0,1fr);height:100dvh;display:grid;overflow:hidden}.sidebar{background:var(--surface-sunk);border-right:1px solid var(--line);overflow-y:auto}.brand{background:var(--surface);border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:14px 18px;display:flex}.brand-mark,.brand-wordmark{flex-shrink:0;width:auto;height:52px;display:block}.brand h1{min-width:0;margin:0}.brand-wordmark{object-fit:contain;max-width:100%}.panel{border-bottom:1px solid var(--line);background:var(--surface);padding:16px 18px}.panel-head{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.panel h2{margin:0 0 12px;font-size:14px;font-weight:650}.panel-head h2{margin:0}.badge{background:var(--ok-bg);color:var(--ok-ink);font:600 10px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;border-radius:3px;margin:10px 0 14px;padding:4px 8px;display:inline-block}.form-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.field{color:var(--ink-soft);gap:5px;font-size:11px;font-weight:600;display:grid}.field.wide{grid-column:1/-1}.field-label{color:var(--ink-soft);margin:16px 0 7px;font-size:11px;font-weight:600}input,select{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);width:100%;min-height:34px;padding:5px 9px}input[type=number]{font-family:var(--mono);text-align:right}.checkrow{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.check{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);text-transform:capitalize;cursor:pointer;justify-content:center;align-items:center;gap:4px;min-height:34px;padding:4px;font-size:11px;display:flex}.check.on{border-color:var(--accent);color:var(--accent)}.check input{width:auto;min-height:0;accent-color:var(--accent);margin:0}.help{border-radius:var(--radius);background:var(--surface-sunk);color:var(--ink-soft);margin:16px 0 0;padding:12px;font-size:12px;line-height:1.5}.button{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);white-space:nowrap;min-height:32px;padding:5px 11px;font-size:12px;font-weight:650}.button:hover:not(:disabled){background:var(--surface-sunk)}.button.primary{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.button:disabled{cursor:default;opacity:.45}.link{background:0 0;border:0;padding:0;font-size:12px;font-weight:650}.link.danger{color:var(--danger)}.workspace{background:var(--canvas);grid-template-rows:auto auto minmax(0,1fr) auto auto;min-width:0;min-height:0;display:grid}.workspace-bar{background:var(--surface);border-bottom:1px solid var(--line);align-items:center;gap:12px;padding:12px 20px;display:flex}.toolbar{flex-wrap:wrap;align-items:center;gap:4px 12px;display:flex}.toolbar .group{align-items:center;gap:2px;display:flex}.sheet-tabs{background:var(--surface);border-bottom:1px solid var(--line);gap:2px;padding:0 20px;display:flex}.sheet-tabs button{color:var(--ink-soft);background:0 0;border:0;border-bottom:2px solid #0000;padding:11px 12px;font-size:13px}.sheet-tabs button.active{border-bottom-color:var(--accent);color:var(--accent);font-weight:650}.profile-actions{flex-flow:wrap;gap:6px;display:flex}.button.switcher{color:var(--ink);letter-spacing:.04em;text-transform:uppercase;align-items:center;gap:6px;display:inline-flex}.button.switcher :global(.icon:first-child){color:var(--accent)}.menu button[aria-checked=true] strong{color:var(--accent)}.button.active{border-color:var(--accent);background:var(--ok-bg);color:var(--accent)}.menu-host{position:relative}.menu{z-index:20;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);min-width:250px;padding:5px;position:absolute;top:calc(100% + 5px);left:0;box-shadow:0 12px 28px #1f34362e}.menu button{text-align:left;background:0 0;border:0;border-radius:4px;align-items:flex-start;gap:9px;width:100%;padding:8px 9px;display:flex}.menu button:hover{background:var(--surface-sunk)}.menu button :global(.icon){color:var(--ink-faint);margin-top:1px}.menu button:hover :global(.icon){color:var(--accent)}.menu strong{font-size:12px;font-weight:650;display:block}.menu small{color:var(--ink-faint);margin-top:2px;font-size:11px;display:block}.sheet-tab{border-bottom:2px solid #0000;align-items:center;display:flex}.sheet-tab.active{border-bottom-color:var(--accent)}.sheet-tab.active button[role=tab]{color:var(--accent);font-weight:650}.sheet-close,.sheet-add{color:var(--ink-faint);background:0 0;border:0;border-radius:4px;padding:4px 7px;font-size:15px;line-height:1}.sheet-close:hover,.sheet-add:hover{background:var(--surface-sunk);color:var(--ink)}.sheet-add{align-self:center;margin-left:4px}.sheet-rename{width:130px;min-height:26px;margin:5px 6px;padding:2px 6px;font-size:13px}.canvas-wrap{min-width:0;min-height:0;position:relative;overflow:hidden}.drawing{touch-action:none;background:var(--canvas);cursor:default;width:100%;height:100%;display:block}.drawing.draw-mode{cursor:crosshair}.drawing.pan-ready{cursor:grab}.drawing.panning{cursor:grabbing}.drawing{--vs:1}.drawing .sheet-outline{fill:var(--surface);stroke:var(--line-strong);stroke-width:1px;vector-effect:non-scaling-stroke}.drawing .grid-line{stroke:#b9c9c8;stroke-width:1px;vector-effect:non-scaling-stroke}.drawing .grid-line.minor{stroke:#d9e2e1}.drawing .grid-line.major{stroke:#90a6a5}.drawing .origin{fill:var(--ink)}.drawing .cut,.drawing .score-down,.drawing .score-up{fill:none;vector-effect:non-scaling-stroke}.drawing .cut{stroke:var(--cut);stroke-width:1.3px}.drawing .score-down{stroke:var(--score-down);stroke-width:1.1px;stroke-dasharray:4 3}.drawing .score-up{stroke:var(--score-up);stroke-width:1.1px;stroke-dasharray:1 2}.drawing .tab-mark{stroke:var(--tab);stroke-width:2.4px;vector-effect:non-scaling-stroke}.drawing .component-label{fill:var(--ink);font-family:var(--mono);font-size:calc(9px / var(--vs));pointer-events:none}.drawing .cursor-guide{stroke:var(--accent);stroke-width:.7px;stroke-dasharray:3 3;opacity:.5;vector-effect:non-scaling-stroke;pointer-events:none}.drawing .hit-target{fill:#0000;stroke:none;cursor:move}.drawing .selection-box{fill:none;stroke:var(--accent);stroke-width:1.2px;stroke-dasharray:3 2;vector-effect:non-scaling-stroke;pointer-events:none}.drawing .resize-handle{fill:var(--surface);stroke:var(--accent);stroke-width:1.2px;vector-effect:non-scaling-stroke}.drawing .resize-handle[data-handle=nw],.drawing .resize-handle[data-handle=se]{cursor:nwse-resize}.drawing .resize-handle[data-handle=ne],.drawing .resize-handle[data-handle=sw]{cursor:nesw-resize}.drawing .draft{fill:#176a6814;stroke:var(--accent);stroke-width:1.2px;stroke-dasharray:4 3;vector-effect:non-scaling-stroke;pointer-events:none}.workspace-foot{background:var(--surface);border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:10px 20px;display:flex}.foot-right{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.zoom{align-items:center;gap:3px;display:flex}.button.icon{min-width:32px;min-height:32px;color:var(--ink-soft);background:0 0;border-color:#0000;justify-content:center;align-items:center;gap:1px;padding:5px;line-height:1;display:inline-flex}.button.icon:hover:not(:disabled){background:var(--surface-sunk);color:var(--ink)}.button.icon.active{background:color-mix(in srgb, var(--accent) 12%, transparent);border-color:color-mix(in srgb, var(--accent) 32%, transparent);color:var(--accent)}.button.icon.split{padding-right:3px}.button.icon.split :global(.icon:last-child){opacity:.6}.zoom-readout,.readout{text-align:center;min-width:46px;font:11px var(--mono);color:var(--ink-faint);margin:0}.readout{text-align:right;min-width:150px}.legend{color:var(--ink-soft);flex-wrap:wrap;gap:14px;font-size:11px;display:flex}.legend span{align-items:center;gap:6px;display:inline-flex}.swatch{border-top:2px solid;width:14px;height:0}.swatch.cut{border-color:var(--cut)}.swatch.score-down{border-top-style:dashed;border-color:var(--score-down)}.swatch.score-up{border-top-style:dotted;border-color:var(--score-up)}.swatch.tab{border-color:var(--tab)}.status{font:11px var(--mono);border-radius:999px;margin:0;padding:5px 11px}.status.ok{background:var(--ok-bg);color:var(--ok-ink)}.status.error{background:var(--error-bg);color:var(--error-ink)}.disclaimer{background:var(--surface);color:var(--ink-faint);margin:0;padding:10px 20px 14px;font-size:11px;line-height:1.5}@media (width<=860px){.app-shell{grid-template-rows:auto minmax(460px,1fr);grid-template-columns:1fr;height:auto;min-height:100dvh;overflow:visible}.sidebar{border-right:0;border-bottom:1px solid var(--line);max-height:52vh}.workspace-bar,.sheet-tabs,.workspace-foot,.disclaimer{padding-inline:14px}.canvas-wrap{padding:14px}.drawing{min-height:380px}}