.fx-wrap{max-width:1240px;margin-inline:auto;padding:22px 20px 56px}.fx-head{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:14px 32px;margin:0 0 18px;padding:0 0 16px;display:grid}.fx-head h1{margin:0 0 6px;font-size:28px}.fx-lede{color:var(--muted);max-width:68ch;margin:0 0 6px;font-size:14px;line-height:1.55}.fx-credit{color:var(--muted);margin:0;font-size:13px}.fx-kinds{color:var(--faint);gap:6px;max-width:360px;margin:0;padding:0;font-size:12px;list-style:none;display:grid}.fx-kinds li{grid-template-columns:112px minmax(0,1fr);align-items:center;gap:8px;display:grid}.fx-kinds .fx-kind{justify-self:start}.fx-kind{white-space:nowrap;border:1px solid;border-radius:999px;flex:none;padding:1px 8px;font-size:10.5px;font-weight:700}.fx-kind.is-client{color:var(--ok)}.fx-kind.is-site{color:var(--amber,#e8b339)}.fx-kind.is-measured{color:var(--accent)}.fx-layout{grid-template-columns:236px minmax(0,1fr);align-items:start;gap:28px;display:grid}.fx-rail{flex-direction:column;gap:10px;max-height:calc(100vh - 100px);padding:0 4px 12px 0;display:flex;position:sticky;top:84px;overflow-y:auto}.fx-find{width:100%;font:inherit;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--field);color:var(--text);padding:7px 10px;font-size:13px}.fx-jumpsel{display:none}.fx-toc{flex-direction:column;gap:12px;display:flex}.fx-toc-h{text-transform:uppercase;letter-spacing:.04em;color:var(--label);justify-content:space-between;align-items:baseline;gap:6px;margin:0 0 4px;font-size:12px;font-weight:700;text-decoration:none;display:flex}.fx-toc-h small{color:var(--faint);letter-spacing:0;font-weight:400}.fx-toc ul{border-left:1px solid var(--line);margin:0;padding:0;list-style:none}.fx-toc li a{color:var(--muted);border-left:2px solid #0000;margin-left:-1px;padding:3px 0 3px 12px;font-size:13px;line-height:1.35;text-decoration:none;display:block}.fx-toc li a:hover{color:var(--text)}.fx-toc li.on a{color:var(--accent);border-left-color:var(--accent);font-weight:700}.fx-toc-sec.on .fx-toc-h{color:var(--text)}.fx-main{min-width:0}.fx-section{margin:0 0 30px;scroll-margin-top:84px}.fx-sec-head{align-items:flex-start;gap:12px;margin:0 0 12px;display:flex}.fx-sec-n{background:var(--accent);width:30px;height:30px;color:var(--bg,#fff);border-radius:9px;flex:none;place-items:center;font-size:14px;font-weight:800;display:grid}.fx-sec-head h2{margin:2px 0;font-size:20px}.fx-sec-head p{color:var(--faint);margin:0;font-size:13px}.fx-card{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;margin:0 0 12px;padding:14px 16px 12px;scroll-margin-top:84px}.fx-card:target{border-color:var(--accent)}.fx-card-head{justify-content:space-between;align-items:center;gap:10px;margin:0 0 4px;display:flex}.fx-card-head h3{margin:0;font-size:16px}.fx-card-head h3 a{color:inherit;text-decoration:none}.fx-card-head h3 a:hover{text-decoration:underline}.fx-what{color:var(--muted);max-width:80ch;margin:0 0 12px;font-size:13.5px;line-height:1.55}.fx-body{grid-template-columns:minmax(0,1.6fr) minmax(220px,1fr);align-items:stretch;gap:12px;display:grid}.fx-body.no-ex{grid-template-columns:minmax(0,1fr)}.fx-math{border-radius:var(--r-sm);background:var(--field);border:1px solid var(--line);flex-direction:column;gap:6px;padding:10px 12px;font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:12.5px;line-height:1.5;display:flex}.fx-line{grid-template-columns:max-content auto minmax(0,1fr);align-items:baseline;gap:0 8px;display:grid}.fx-line.solo{grid-template-columns:minmax(0,1fr)}.fx-lhs{color:var(--accent);white-space:nowrap;font-weight:700}.fx-eq{color:var(--faint)}.fx-rhs{color:var(--text);overflow-wrap:anywhere}.fx-line+.fx-line{border-top:1px dashed var(--line);padding-top:6px}.fx-ex{border-radius:var(--r-sm);border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--field);flex-direction:column;justify-content:center;gap:4px;padding:10px 12px;display:flex}.fx-ex-k{text-transform:uppercase;letter-spacing:.06em;color:var(--label);font-size:10.5px}.fx-ex-g{color:var(--muted);margin:0;font-size:12.5px;line-height:1.45}.fx-ex-r{color:var(--text);font-variant-numeric:tabular-nums;margin:0;font-size:15px;font-weight:800;line-height:1.35}.fx-more{margin:10px 0 0}.fx-more>summary{color:var(--label);align-items:baseline;gap:8px;font-size:12.5px;font-weight:700;list-style:none;display:inline-flex}.fx-more>summary::-webkit-details-marker{display:none}.fx-more>summary:before{content:"▸";font-size:11px;transition:transform .15s}.fx-more[open]>summary:before{transform:rotate(90deg)}.fx-more>summary small{color:var(--faint);font-weight:400}.fx-more>summary:hover{color:var(--text)}.fx-more[open]>summary{margin:0 0 8px}.fx-terms{border:1px solid var(--line);border-radius:var(--r-sm);margin:0 0 10px;font-size:12.5px;display:grid;overflow:hidden}.fx-terms>div{grid-template-columns:160px minmax(0,1fr);gap:12px;padding:6px 10px;display:grid}.fx-terms>div+div{border-top:1px solid var(--line)}.fx-terms dt{color:var(--label);font-weight:700}.fx-terms dd{color:var(--muted);margin:0}.fx-table-wrap{margin:0 0 10px;overflow-x:auto}.fx-table{border-collapse:collapse;font-variant-numeric:tabular-nums;min-width:420px;font-size:12.5px}.fx-table caption{text-align:left;color:var(--label);text-transform:uppercase;letter-spacing:.05em;padding:0 0 4px;font-size:11px}.fx-table th,.fx-table td{border-bottom:1px solid var(--line);text-align:left;padding:4px 14px 4px 0}.fx-table th{color:var(--label);font-weight:700}.fx-notes{color:var(--muted);margin:0;padding-left:18px;font-size:12.5px;line-height:1.5}.fx-empty{color:var(--faint);padding:20px 0}@media (width<=1000px){.fx-head{grid-template-columns:minmax(0,1fr)}.fx-layout{grid-template-columns:minmax(0,1fr);gap:12px}.fx-rail{flex-direction:row;gap:8px;max-height:none;padding:0;position:static;overflow:visible}.fx-toc{display:none}.fx-jumpsel{min-width:0;font:inherit;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--field);color:var(--text);flex:0 240px;padding:7px 10px;font-size:13px;display:block}.fx-find{flex:auto;width:auto}.fx-section,.fx-card{scroll-margin-top:130px}}@media (width<=720px){.fx-wrap{padding:14px 16px 40px}.fx-body,.fx-line{grid-template-columns:minmax(0,1fr)}.fx-line .fx-eq{display:none}.fx-terms>div{grid-template-columns:minmax(0,1fr);gap:0}.fx-card-head{flex-wrap:wrap}.fx-rail{flex-direction:column;align-items:stretch}.fx-jumpsel{flex:none}.fx-section,.fx-card{scroll-margin-top:200px}}