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UI,sans-serif}[data-theme=light]{--bg:#e9ecf1;--panel:#fff;--panel-2:#f3f5f8;--border:#d3d8e0;--text:#1d2735;--muted:#64748b;--accent:#2563eb;--accent-soft:#2563eb1f;--warn:#b45309;--error:#dc2626;--ok:#15803d;--input:#fff;--c-bg:#fbfcfe;--c-grid:#eef1f6;--c-grid-major:#dde3ec;--c-axis-x:#e8a3a3;--c-axis-y:#9fd0a5;--c-geom:#1f6fd6;--c-geom-done:#111827;--c-construction:#94a3b8;--c-select:#e07b00;--c-hover:#f59e0b;--c-fill:#3b82f61f;--c-dim:#1d2735;--c-dim-bg:#ffffffeb;--c-glyph-bg:#e5e9f0;--c-glyph:#334155;--c-ref:#b8c0cc;--c-link:#7c3aed;--c-ruler:#f1f3f7;--c-ruler-text:#64748b;--c-3d-bg:#eef1f5;--c-3d-body:#8fb3ff;--c-3d-edge:#1d2735;--c-3d-ghost:#d4179c;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;margin:0;overflow:hidden}body{color:var(--text);flex-direction:column;font:13px/1.4 system-ui,-apple-system,Segoe 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input.num{width:64px}.ctxbar .group{align-items:center;gap:3px;display:inline-flex}.ctxbar .icon-btn{padding:3px 5px;display:inline-flex}.statusbar{border-top:1px solid var(--border);color:var(--muted);white-space:nowrap;border-bottom:0;gap:16px;padding:3px 10px;overflow:hidden}.brand{color:var(--accent);letter-spacing:.02em;margin-right:8px;font-weight:700}.sep{background:var(--border);flex:none;width:1px;height:20px;margin:0 4px}.grow{flex:1}#status-dof.ok{color:var(--ok)}#status-view:empty{display:none}#status-view.over{color:var(--warn)}#status-measure{font:inherit;color:var(--text);cursor:pointer;background:0 0;border:0;padding:0}#status-measure:hover{color:var(--accent);text-decoration:underline}#status-kernel.link{cursor:pointer;color:#ff6b5e}#status-kernel.link:hover{text-decoration:underline}#status-hint{text-overflow:ellipsis;overflow:hidden}.menu{position:relative}.menu-items{z-index:20;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-pop);min-width:260px;margin-top:4px;padding:4px;display:none;position:absolute;top:100%;left:0;box-shadow:0 8px 24px #00000059}.menu.open .menu-items{display:block}@media (max-width:600px){.menu-items{top:var(--menu-top,48px);min-width:0;max-height:70vh;position:fixed;left:8px;right:8px;overflow-y:auto}}.menu-items button{text-align:left;background:0 0;border:0;justify-content:space-between;width:100%;display:flex}.menu-items button:hover{background:var(--accent-soft)}.menu-items small{color:var(--muted)}.menu-items .menu-tick{border-top:1px solid var(--border);cursor:pointer;white-space:nowrap;align-items:center;gap:8px;margin-top:4px;padding:6px 10px 2px;display:flex}.menu-items .menu-tick small{margin-left:auto;padding-left:12px}.menu-items .menu-tick[hidden]{display:none}.menu-items .menu-detail{white-space:nowrap;align-items:center;gap:4px;padding:2px 10px 6px;display:flex}.menu-items .menu-detail[hidden]{display:none}.menu-items .menu-detail>span{color:var(--muted);margin-right:6px;font-size:12px}.menu-items .menu-detail button{border:1px solid var(--border);border-radius:var(--r-control);flex-direction:column;flex:1;align-items:flex-start;gap:0;width:auto;padding:2px 8px;line-height:1.3}.menu-items .menu-detail button.active{border-color:var(--accent);background:var(--accent-soft)}.workspace{grid-template-columns:58px 1fr 300px;gap:0;min-height:0;display:grid}.tools{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;gap:3px;padding:6px 5px;display:flex;overflow-y:auto}.tools button{color:var(--muted);background:0 0;border-color:#0000;flex-direction:column;align-items:center;padding:5px 0 3px;font-size:10px;display:flex}.tools button:hover:not(:disabled){color:var(--text);border-color:var(--border)}.tools button.active{color:var(--accent);background:var(--accent-soft);border-color:var(--accent)}.tools .tool-sep{background:var(--border);height:1px;margin:4px 2px}svg.icon{stroke:currentColor;stroke-width:1.6px;fill:none;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.ctxbar svg.icon{width:18px;height:18px}.stage{background:var(--c-bg);min-width:0;min-height:0;position:relative;overflow:hidden}#sketch,#view3d{touch-action:none;width:100%;height:100%;position:absolute;inset:0}#view3d canvas{display:block}[data-stage="3d"] #sketch,[data-stage="2d"] #view3d{visibility:hidden}.stage-tabs{z-index:5;gap:2px;display:none;position:absolute;bottom:10px;right:10px}[data-mode=sketch] .stage-tabs{display:flex}.stage-tabs button{padding:2px 10px}.banner{z-index:6;background:var(--panel);border:1px solid var(--accent);border-radius:var(--r-pop);white-space:nowrap;align-items:center;gap:10px;max-width:calc(100% - 40px);padding:6px 12px;display:flex;position:absolute;top:8px;left:50%;transform:translate(-50%);box-shadow:0 4px 16px #0000004d}.banner[hidden]{display:none}.banner-lines{flex-direction:column;gap:1px;display:flex}.banner-lines small{font-size:12px}.dim-input{text-align:center;border:2px solid var(--accent);border-radius:var(--r-control);background:var(--input);z-index:10;width:90px;padding:3px 4px;position:absolute;transform:translate(-50%,-50%);box-shadow:0 2px 12px #0006}.dock{background:var(--panel);border-left:1px solid var(--border);flex-direction:column;min-height:0;display:flex}.dock-panel{border-bottom:1px solid var(--border);min-height:0;padding:6px 10px 8px;overflow:auto}.steps-panel{flex:0 auto;max-height:30%}.legend-panel{flex:0 auto;max-height:32%}.layers-panel{flex:0 auto;max-height:25%}.legend-panel[hidden],.layers-panel[hidden]{display:none}.legend-head{align-items:center;gap:8px;margin-bottom:4px;display:flex}.legend-colors{align-items:center;gap:8px;margin:0 0 6px;font-size:12px;display:flex}.legend-colors .seg{gap:2px;display:flex}.legend-colors .seg button{padding:1px 8px;font-size:12px}.legend-filter{width:100%;margin-bottom:4px}.legend-list{margin:0;padding:0;list-style:none}.legend-row{border-radius:var(--r-control);align-items:center;gap:7px;padding:2px 4px;display:flex}button.eye{color:var(--text);background:0 0;border-color:#0000;flex:none;padding:1px;display:inline-flex}button.eye svg.icon{width:15px;height:15px}button.eye.off{color:var(--muted)}button.eye.mixed{opacity:.5}button.eye:hover:not(:disabled){color:var(--accent);border-color:#0000}button.eye:focus-visible{outline:2px solid var(--accent);outline-offset:0}.legend-row:hover{background:var(--panel-2)}.legend-row.selected{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent)}.legend-row.selected .name{color:var(--accent);font-weight:600}.legend-row .name{cursor:pointer}.legend-row.sub{color:var(--muted);padding-left:26px}.legend-row .name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.swatch{border-radius:var(--r-control);border:1px solid #0000004d;flex:none;width:14px;height:14px}button.tiny{padding:0 6px;font-size:11px}.tools .tool-label{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);text-align:center;opacity:.8;margin:6px 0 1px;font-size:9px}.props-sub{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:10px 0 2px;font-size:11px}#props .small{margin-top:8px;font-size:12px}.ctxbar .next-steps button{align-items:center;gap:4px;display:inline-flex}.props-panel{flex:1 1 0;min-height:35%}@media (max-width:600px){.props-panel{flex:auto;min-height:0}}.history-panel{flex:0 auto;max-height:24%}.dock h3{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:2px 0 6px;font-size:11px}.dock ol{margin:0;padding:0;list-style:none}#steps li{border-radius:var(--r-control);cursor:pointer;align-items:center;gap:6px;padding:3px 6px;display:flex}#steps li svg.icon{flex:none;width:16px;height:16px}#steps li .name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}#steps li:hover{background:var(--panel-2)}#steps li.selected{background:var(--accent-soft);color:var(--accent)}#steps li.suppressed>*{opacity:.45}#steps li.suppressed>.badge.off{opacity:.8}#steps li .badge.off{display:flex}#steps li .badge.off svg.icon{width:14px;height:14px}#steps li .badge{font-size:11px}#steps li.broken{color:var(--error);background:color-mix(in srgb, var(--error) 11%, transparent);box-shadow:inset 3px 0 0 var(--error)}#steps li.broken:hover{background:color-mix(in srgb, var(--error) 17%, transparent)}#steps li.broken.selected{color:var(--error);background:color-mix(in srgb, var(--error) 22%, transparent);box-shadow:inset 3px 0 0 var(--error), inset 0 0 0 1px color-mix(in srgb, var(--error) 45%, transparent)}#steps li.pending .why{color:var(--muted);font-size:11px;line-height:1.3;display:block}#steps li.building,#steps li.waiting{position:relative}#steps li.building:after,#steps li.waiting:after{content:"";border-radius:inherit;background:var(--accent-soft);box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent);pointer-events:none;animation:1.4s ease-in-out infinite step-breathe;position:absolute;inset:0}@keyframes step-breathe{0%,to{opacity:.15}50%{opacity:1}}.build-line{pointer-events:none;opacity:0;z-index:6;height:2px;transition:opacity .15s;position:absolute;top:0;left:0;right:0;overflow:hidden}body.building .build-line{opacity:1}.build-line:before{content:"";background:linear-gradient(90deg, transparent, var(--accent), transparent);width:35%;animation:1.1s ease-in-out infinite build-sweep;position:absolute;top:0;bottom:0;left:-35%}@keyframes build-sweep{to{left:100%}}@media (prefers-reduced-motion:reduce){.build-line:before{background:var(--accent);opacity:.7;width:100%;animation:none;left:0}#steps li.building:after,#steps li.waiting:after{opacity:.8;animation:none}}#steps li .badge.error{color:var(--error)}#steps li .badge.warning{color:var(--warn)}#steps .empty,#props .empty{color:var(--muted);padding:4px 0}#history li{border-radius:var(--r-control);cursor:pointer;padding:2px 6px}#history li:hover{background:var(--panel-2)}#history li.current{background:var(--accent-soft);color:var(--accent);font-weight:600}#history li.redo{color:var(--muted);opacity:.6}#props .field{grid-template-columns:72px 1fr;align-items:center;gap:6px;margin:6px 0;display:grid}#props .field>span{color:var(--muted)}#props input,#props select{width:100%}#props .checklist input{flex:none;width:auto}#props .seg{flex-wrap:wrap;gap:2px;display:flex}#props .seg button{padding:2px 7px;font-size:12px}#props .row{flex-wrap:wrap;gap:6px;margin-top:10px;display:flex}#props .msg{border-radius:var(--r-control);margin:4px 0 8px;padding:6px 8px}#props .msg.error{color:var(--error);background:#ff6b6b1f}#props .msg.warning{color:var(--warn);background:#f5b8411f}#props .msg.info{background:var(--accent-soft)}#props .muted{color:var(--muted)}#toast{background:var(--panel);border:1px solid var(--border);color:var(--text);border-radius:var(--r-pop);opacity:0;pointer-events:none;z-index:30;max-width:90vw;padding:8px 14px;transition:opacity .2s,transform .2s;position:fixed;bottom:40px;left:50%;transform:translate(-50%,20px)}#toast.show{opacity:1;transform:translate(-50%)}#toast[data-kind=warn]{border-left:3px solid var(--warn)}#toast[data-kind=error]{border-left:3px solid var(--error)}#toast.show.has-action{pointer-events:auto}#toast button{margin-left:8px}@media (max-width:900px){.workspace{grid-template-rows:1fr auto;grid-template-columns:50px 1fr}.dock{border-left:0;border-top:1px solid var(--border);grid-column:1/3;max-height:34vh}.menubar{flex-wrap:wrap}.tools button span{display:none}}.tool-buttons{flex-direction:column;gap:3px;display:flex}@media (min-width:901px){body[data-toolbar=side] .workspace{grid-template-columns:112px 1fr 300px}body[data-toolbar=side] .tool-buttons{grid-template-columns:1fr 1fr;display:grid}}.dim-input.text{text-align:left;width:220px;transform:translateY(-50%)}.ctxbar input.text-edit{width:160px}.popover{z-index:20;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-pop);min-width:300px;padding:10px 12px;position:absolute;top:8px;left:50%;transform:translate(-50%);box-shadow:0 8px 28px #00000059}.popover-title{margin-bottom:6px;font-weight:600}.popover .field{grid-template-columns:96px 1fr;align-items:center;gap:6px;margin:6px 0;display:grid}.popover .field[hidden]{display:none}.popover .field small{grid-column:2;margin-top:-4px}.popover .row{gap:6px;margin-top:8px;display:flex}.checklist{flex-direction:column;gap:3px;max-height:140px;display:flex;overflow-y:auto}.checklist label{align-items:center;gap:6px;font-size:12px;display:flex}.measure-panel{z-index:15;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-panel);width:280px;padding:10px 12px;position:absolute;top:10px;right:10px;box-shadow:0 8px 28px #0000004d}.measure-title{margin-bottom:6px;font-weight:600}.measure-rows{grid-template-columns:auto 1fr;gap:4px 10px;margin:6px 0;font-size:13px;display:grid}.measure-rows .val{font-variant-numeric:tabular-nums;-webkit-user-select:text;user-select:text}.measure-panel .row{justify-content:flex-end;gap:6px;margin-top:8px;display:flex}.welcome{z-index:12;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-panel);width:min(560px,100% - 32px);padding:16px 18px;position:absolute;top:42%;left:50%;transform:translate(-50%,-50%);box-shadow:0 8px 28px #0000004d}.welcome-title{margin-bottom:10px;font-size:15px;font-weight:600}.welcome-actions{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;display:grid}.welcome-actions button{text-align:left;white-space:normal;flex-direction:column;align-items:flex-start;gap:3px;padding:10px 12px;display:flex}.welcome-actions small{opacity:.75;font-size:11.5px;line-height:1.3}.welcome-recent{flex-wrap:wrap;align-items:center;gap:4px 10px;margin-top:12px;font-size:12.5px;display:flex}.welcome-sketch{margin-top:12px;font-size:12.5px}@media (max-width:600px){.welcome-sketch{display:none}}.welcome-sketch button.link,.welcome-recent button.link{color:var(--accent);cursor:pointer;background:0 0;border:0;padding:0}.checks-panel{width:340px;max-height:calc(100% - 68px);top:58px;overflow-y:auto}.check-head{align-items:baseline;gap:8px;display:flex}.check-head .grow{flex:1}.check-limits-link{color:var(--accent);cursor:pointer;background:0 0;border:0;padding:0;font-size:12px}.check-limits{flex-wrap:wrap;gap:6px 14px;margin-bottom:8px;font-size:12px;display:flex}.check-limits label{align-items:center;gap:5px;display:flex}.check-limits input{width:54px}.check-list{flex-direction:column;gap:4px;margin-bottom:6px;display:flex}.check-list button{text-align:left;white-space:normal;align-items:flex-start;gap:8px;padding:6px 8px;font-size:12.5px;line-height:1.35;display:flex}.check-list button.active{border-color:var(--accent)}.check-list button.check-fix{align-self:flex-end;margin-top:-2px}.review-row{border-radius:var(--r-control);border:1px solid #0000;align-items:center;gap:6px;padding:4px 6px;font-size:12.5px;display:flex}.review-row:hover,.review-row.active{border-color:var(--border);background:var(--input)}.review-label{flex:1;min-width:0}.review-list button.review-pick{flex:none;padding:3px 8px;font-size:12px}.review-list button.review-pick.on{border-color:var(--accent);color:var(--accent)}.review-list button.review-fold{color:var(--muted);background:0 0;border:0;align-self:flex-start;padding:2px 0;font-size:12px}.link-pop button.review-open{border-color:var(--accent)}.check-icon{text-align:center;width:16px;color:var(--warn,#e0a030);flex:none}.check-ok{color:var(--ok,#4caf7a);margin:4px 0 8px;font-size:13px}.section-ctl input[type=range]{width:160px}.param-row{grid-template-columns:1fr auto 1.4fr auto auto auto;align-items:center;gap:4px;margin:3px 0;display:grid}.param-row input{min-width:0;padding:2px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.param-row.bad .pexpr{border-color:var(--error)}.param-row .pval{min-width:2ch;font-size:11px}.param-row .ptext{font-family:inherit}.param-row select.pchoice{min-width:0;padding:1px 4px;font-size:12px}.param-row .pbool{gap:2px;display:flex}.param-row .pbool button,.customize-seg button{padding:1px 8px;font-size:12px}.params-add{gap:2px;display:inline-flex}#props input.has-expr{color:var(--accent);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}#props .field:has(>.num-tune){row-gap:0}#props .num-tune{grid-row:span 2;grid-template-rows:subgrid;display:grid;position:relative}#props .tune-pop{padding:2px 0 3px;display:none;position:relative}#props .num-tune:focus-within .tune-pop,#props .num-tune.held .tune-pop{display:block}#props .tune-pop:has(input.tune.dragging){display:block}#props input.tune{width:100%;height:14px;accent-color:var(--accent);background:0 0;border:none;margin:0;padding:0;display:block}#props .tune-pop:before{content:"";background:var(--muted);opacity:.6;pointer-events:none;width:1px;height:4px;position:absolute;bottom:2px;left:50%}body.tune-behind #props .num-tune:has(input.tune:focus):after{content:"catching up…";color:var(--muted);pointer-events:none;font-size:11px;position:absolute;top:4px;right:4px}#props .waiting input:not(.tune){color:var(--muted)}#props .wait-ring{border:1.5px solid color-mix(in srgb, var(--muted) 35%, transparent);border-top-color:var(--accent);pointer-events:none;border-radius:50%;width:10px;height:10px;animation:.8s linear infinite wait-spin;display:none;position:absolute;top:6px;right:7px}#props .waiting .wait-ring{display:block}body.tune-behind #props .num-tune.waiting:has(input.tune:focus):after{right:22px}@keyframes wait-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){#props .wait-ring{border-color:var(--accent);border-style:dotted;animation:none}}#props .tune-stop{left:calc(8px + (100% - 16px) * var(--stop));border-left:1px solid var(--error);background:repeating-linear-gradient(135deg, color-mix(in srgb, var(--error) 65%, transparent) 0 2px, transparent 2px 4px);pointer-events:none;height:3px;position:absolute;bottom:0;right:0}#props .over input:not(.tune){color:var(--error);border-color:var(--error)}#props .limit-line{margin:2px 0 6px}#props .limit-line.muted{color:var(--muted)}#props .limit-line.error{color:var(--error)}#props .limit-line.working{color:var(--muted);font-style:italic}#props .type-hint{color:var(--muted);margin:2px 0 6px}#props .tryout-changed button{margin-left:4px}#props .picks button.link{color:var(--accent);font:inherit;cursor:pointer;background:0 0;border:0;padding:0}#props .picks button.link:hover{text-decoration:underline}#props .tryout-changed{align-items:center;gap:6px;margin:2px 0 6px;display:flex}#props .tryout-changed span{flex:1}@media (max-width:600px){#props .tune-pop{display:none!important}}.params-panel{flex:0 auto;max-height:26%}.dock h3{cursor:pointer;-webkit-user-select:none;user-select:none}.dock h3:before{content:"▾ ";opacity:.6}.dock-panel.collapsed>:not(h3){display:none}.dock-panel.collapsed h3{margin-bottom:0}.dock-panel.collapsed h3:before{content:"▸ "}.dock-panel.collapsed{flex:none;min-height:0}.props-panel.idle>:not(h3){display:none}.props-panel.idle{flex:none;min-height:0}.props-panel.idle h3{cursor:default;margin-bottom:0}.props-panel.idle h3:before{content:"▸ "}.dock h3:focus-visible{outline:2px solid var(--accent);outline-offset:1px;border-radius:var(--r-control)}.dock-panel.dragging{opacity:.5}.dock-panel.drop-before{box-shadow:inset 0 2px 0 var(--accent)}.dock-panel.drop-after{box-shadow:inset 0 -2px 0 var(--accent)}.props-panel 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