:root{
  --bg:#f5f6f7;--card:#fff;--ink:#1d2329;--mut:#66707a;--line:#dfe3e7;--acc:#1f6f8b;--acc-s:#e3f0f5;
  --err:#b42318;--err-s:#fdecea;--q:#9a6700;--q-s:#fff6dd;--ok:#1a7f37;--ok-s:#e6f4ea;
  --e2:#1d2329;--e1:#1f6f8b;--e04:#5aa7c2;--r:10px
}
@media (prefers-color-scheme:dark){:root{
  --bg:#14181c;--card:#1c2228;--ink:#e6eaee;--mut:#9aa4ae;--line:#2d353d;--acc:#5fb3d1;--acc-s:#1d3440;
  --err:#ff8a7a;--err-s:#3a1f1c;--q:#e7b84a;--q-s:#3a3018;--ok:#6fd08c;--ok-s:#173222;--e2:#e6eaee;--e1:#5fb3d1;--e04:#2f7f9b
}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:1280px;margin:0 auto;padding:0 16px}
h1{font-size:20px;margin:0;line-height:1.2}h2{font-size:16px;margin:0}h3{font-size:13px;margin:16px 0 8px;color:var(--mut);text-transform:uppercase;letter-spacing:.04em}
.top{background:var(--card);border-bottom:1px solid var(--line);padding:12px 0;margin-bottom:16px}
.top-in{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.sub{color:var(--mut);font-size:13px}
.top-actions{display:flex;gap:8px;flex-wrap:wrap}
.badge{font-size:12px;padding:2px 8px;border-radius:99px}.badge.warn{background:var(--q-s);color:var(--q)}.badge.ok{background:var(--ok-s);color:var(--ok)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;margin-bottom:16px}
.card-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.note{color:var(--mut);font-size:13px;max-width:720px}
.hint{font-weight:400;color:var(--mut);font-size:12px}
button,.ghost.file{font:inherit;border-radius:8px;border:1px solid var(--acc);background:var(--acc);color:#fff;padding:6px 12px;cursor:pointer}
button.ghost,.ghost.file{background:transparent;color:var(--acc)}
button:disabled{opacity:.45;cursor:not-allowed}
.file input{display:none}
input,select{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:6px;padding:4px 6px}
input.n{width:72px}input.s{width:64px}
.table-scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%}
th{font-size:12px;text-align:left;color:var(--mut);font-weight:600;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:bottom;white-space:nowrap}
td{padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:middle;white-space:nowrap}
#tbl tbody tr{cursor:pointer}#tbl tbody tr.sel{background:var(--acc-s)}
.c-chk{width:28px}
.cut{font-variant-numeric:tabular-nums;color:var(--mut)}
.edges4{display:flex;gap:4px}
.edges4 select{padding:2px;width:56px}
.st{font-size:12px;padding:2px 8px;border-radius:99px;background:var(--line)}
.st.q{background:var(--q-s);color:var(--q)}.st.ok{background:var(--ok-s);color:var(--ok)}.st.err{background:var(--err-s);color:var(--err)}
.row-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:12px}
.group{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding-left:12px;border-left:1px solid var(--line)}
.hidden{display:none!important}
.seg{display:flex;border:1px solid var(--acc);border-radius:8px;overflow:hidden}
.seg button{border:0;border-radius:0;background:transparent;color:var(--acc)}.seg button.on{background:var(--acc);color:#fff}
.ed-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:24px}
@media (max-width:900px){.ed-grid{grid-template-columns:1fr}}
.scheme-box svg{width:100%;height:auto;background:var(--bg);border-radius:8px;touch-action:manipulation}
.tools{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.tools button{padding:4px 10px;font-size:13px}
.tools .lbl{color:var(--mut);font-size:13px;align-self:center}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--mut);margin-top:8px}
.lg{display:inline-block;width:20px;height:0;vertical-align:middle;margin-right:4px;border-top:3px solid}
.lg.e2{border-top:5px solid var(--e2)}.lg.e1{border-color:var(--e1)}.lg.e04{border-top:2px solid var(--e04)}
.lg.none{border-top:1px solid var(--mut)}.lg.undef{border-top:3px dashed var(--err)}
.lg.hb{width:10px;height:10px;border:1px dashed var(--ink);border-radius:50%}
.edge-form{display:grid;grid-template-columns:auto 1fr 1fr;gap:6px 8px;align-items:center}
.edge-form b{font-variant-numeric:tabular-nums}
.hinge-helper{display:flex;gap:6px;align-items:center;flex-wrap:wrap;font-size:13px;margin-bottom:8px}
.hinge-helper input.n{width:60px}
.hole{display:flex;gap:6px;align-items:center;flex-wrap:wrap;padding:6px 0;border-bottom:1px dashed var(--line);font-size:13px}
.hole .t{min-width:170px;font-weight:600}
.hole button{padding:2px 8px}
.msgs{list-style:none;padding:0;margin:0}
.msgs li{padding:6px 8px;border-radius:6px;margin-bottom:4px;font-size:13px;display:flex;justify-content:space-between;gap:8px;align-items:center}
.msgs .error{background:var(--err-s);color:var(--err)}.msgs .question{background:var(--q-s);color:var(--q)}.msgs .ok{background:var(--ok-s);color:var(--ok)}
.status-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:12px}
.total{font-size:16px;margin-top:12px;text-align:right}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
dialog{border:1px solid var(--line);border-radius:var(--r);background:var(--card);color:var(--ink);max-width:720px;width:calc(100% - 32px);padding:0}
.dlg{padding:16px}.dlg-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.set-tbl td{padding:4px 6px}
svg text{font:12px system-ui,sans-serif;fill:var(--ink)}
svg .dim{fill:var(--mut)}
#tbl select[data-f="material"]{max-width:170px}
#tbl input[data-f="name"]{width:110px}
.ed-side,.scheme-box{min-width:0}
.edge-form{grid-template-columns:auto minmax(0,1fr) minmax(0,1fr)}
.edge-form select{width:100%;min-width:0}
@media (max-width:600px){.edge-form{grid-template-columns:1fr 1fr}.edge-form span{grid-column:1/-1}.hole .t{min-width:0;width:100%}}
#scheme .grab{fill:transparent;cursor:move;touch-action:none}
#scheme text.chain{font-size:11px}
.hole.on{background:var(--q-s)}