:root{--bg:#f3f4f6;--panel:#fff;--ink:#1d2330;--mute:#6b7280;--line:#e3e6ea;--accent:#d9480f;--sel:#1c7ed6;--warn:#e67700;--err:#c92a2a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#131519;--panel:#1b1e24;--ink:#e6e8ec;--mute:#8b93a1;--line:#2b3039;--accent:#ff7a3d;--sel:#4dabf7;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);color:var(--ink);grid-template-columns:300px 1fr;font:13px/1.4 -apple-system,BlinkMacSystemFont,Inter,system-ui,sans-serif;display:grid}#side{background:var(--panel);border-right:1px solid var(--line);flex-direction:column;gap:14px;padding:16px;display:flex;overflow-y:auto}header h1{margin:0;font-size:17px}header h1 a{color:inherit;text-decoration:none}#summary{color:var(--mute);margin-top:2px}button,input,select{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:5px 8px}button{cursor:pointer}button:hover{border-color:var(--mute)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;padding:9px;font-weight:600}button.link{color:var(--mute);background:0 0;border:0;padding:6px 0;text-decoration:underline}.steppers{grid-template-columns:1fr 1fr;gap:8px;display:grid}.stepper{grid-template-columns:auto 1fr auto;align-items:center;gap:4px;display:grid}.stepper span{color:var(--mute);grid-column:span 3;font-size:11px}.stepper output{text-align:center;font-variant-numeric:tabular-nums;font-weight:600}.stepper button{width:30px;padding:4px 0}#rack{grid-template-columns:22px 1fr;grid-auto-rows:24px;gap:2px 6px;display:grid}#rack .n{color:var(--mute);text-align:right;font-variant-numeric:tabular-nums;align-self:center;font-size:10px}.slot{border:1px dashed var(--line);color:var(--mute);text-align:left;background:0 0;border-radius:6px;padding:0 8px;font-size:11px}.slot:hover{border-color:var(--mute);color:var(--ink)}.block{color:#fff;text-align:left;border:2px solid #0000;border-radius:6px;align-items:center;padding:0 9px;font-size:12px;font-weight:600;line-height:1.2;display:flex}.block.sel{border-color:var(--sel);box-shadow:0 0 0 2px color-mix(in srgb, var(--sel) 30%, transparent)}.adder{gap:4px;display:flex}.adder button{flex:1;padding:2px 4px;font-size:11px}#editor:empty{display:none}#editor{border:1px solid var(--line);border-radius:10px;gap:10px;padding:12px;display:grid}#editor .title{align-items:center;gap:8px;font-weight:600;display:flex}#editor .title span{flex:1}#editor .row{align-items:center;gap:6px;display:flex}#editor .row>*{flex:1}#editor .chips{flex-wrap:wrap;gap:6px;display:flex}#editor .chips button.on{background:var(--ink);color:var(--panel);border-color:var(--ink)}#editor label{color:var(--mute);gap:3px;font-size:11px;display:grid}#issues{gap:4px;margin:0;padding:0;list-style:none;display:grid}#issues:empty{display:none}#issues li{background:var(--bg);border-left:3px solid;border-radius:7px;padding:6px 9px;font-size:12px}#issues li.error{border-color:var(--err)}#issues li.warn{border-color:var(--warn)}.note{color:var(--mute);margin-top:-8px;font-size:11px}details{border-top:1px solid var(--line);padding-top:10px}summary{cursor:pointer;font-weight:600}details[open] summary{margin-bottom:8px}.grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.grid label{color:var(--mute);gap:3px;font-size:11px;display:grid}.grid .wide{grid-column:span 2}table{border-collapse:collapse;width:100%}td{border-bottom:1px solid var(--line);vertical-align:top;padding:4px 0}td:last-child{text-align:right;font-variant-numeric:tabular-nums;padding-left:8px}.part{cursor:pointer;border-radius:5px;grid-template-columns:1fr auto;align-items:center;gap:6px;padding:3px 4px;display:grid}.part:hover,.part.sel{background:var(--bg)}.part.hid span:first-child{opacity:.45;text-decoration:line-through}.part .meta{color:var(--mute);font-variant-numeric:tabular-nums;font-size:11px}.part .bad{color:var(--err)}#feaSummary{margin:8px 0;font-size:12px}#feaSummary.over{color:var(--err);font-weight:700}#feaSummary.within{color:#43b581;font-weight:700}#feaMaterials,#feaHeights{margin:10px 0}#feaMaterials td,#feaHeights td{font-size:11px}#feaMaterials tr.selected{color:var(--accent);font-weight:700}#view{min-width:0;height:100vh;position:relative}#c{width:100%;height:100%;display:block}#toolbar{background:color-mix(in srgb, var(--panel) 90%, transparent);border:1px solid var(--line);border-radius:9px;align-items:center;gap:14px;padding:5px 10px;display:flex;position:absolute;top:12px;left:12px}#toolbar label{align-items:center;gap:5px;font-size:12px;display:flex}.seg{display:flex}.seg button{border-radius:0;padding:4px 10px}.seg button:first-child{border-radius:7px 0 0 7px}.seg button:last-child{border-left:0;border-radius:0 7px 7px 0}.seg button.on{background:var(--ink);color:var(--panel);border-color:var(--ink)}#status{color:var(--mute);font-size:11px;position:absolute;bottom:10px;right:14px}.label3d{color:var(--ink);background:color-mix(in srgb, var(--panel) 85%, transparent);border:1px solid var(--line);white-space:nowrap;pointer-events:none;border-radius:4px;padding:1px 5px;font-size:10px}@media (width<=860px){body{grid-template-columns:1fr}#view{order:-1;height:65vh}#side{border-right:0}}#explode.on{background:var(--ink);color:var(--panel);border-color:var(--ink)}#loading{pointer-events:none;color:var(--mute);opacity:0;justify-content:center;align-items:center;gap:10px;font-size:13px;transition:opacity .15s;display:flex;position:absolute;inset:0}#loading.on{opacity:1}#loading.first{background:var(--bg)}.spinner{border:2.5px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.enc{gap:4px;display:grid}.enc span{color:var(--mute);font-size:11px}.enc .seg button{flex:1}.enc .seg{display:flex}#bom a{color:var(--ink);border-bottom:1px dotted var(--mute);text-decoration:none}#bom a:hover{color:var(--accent)}#bom .meta{color:var(--mute);font-size:10px}#bom td:nth-child(2){color:var(--mute);white-space:nowrap;padding-left:6px}#bom tr.total td{border-bottom:0;padding-top:8px;font-weight:700}#bom tr.cat{cursor:pointer;-webkit-user-select:none;user-select:none}#bom tr.cat td:first-child:before{content:"▾ "}#bom tr.cat.shut td:first-child:before{content:"▸ "}#bom tr.cat td{color:var(--mute);text-transform:uppercase;letter-spacing:.04em;padding-top:10px;font-size:10px;font-weight:600}