:root{
  --paper:#fbfaf7;
  --tint:#f0ede6;
  --ink:#1c2b4a;
  --ink-soft:#55607a;
  --line:#ddd8cd;
  --line-hard:#1c2b4a;
  --flare:#9c4a12;
  --card:#ffffff;
  --warn-bg:#f8efe3;
  --measure:38em;
  --r-sm:8px;
  --r-md:18px;
  --r-lg:28px;
  --pill:980px;
  --ease:cubic-bezier(.32,.72,0,1);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:Archivo,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.62;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink)}
a:hover{color:var(--flare)}
.mono{font-family:"Space Mono",ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:0}

.skip-link{position:absolute;inset-inline-start:-9999px;top:0}
.skip-link:focus{inset-inline-start:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:var(--r-sm);z-index:60}

.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(251,250,247,.78);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(28,43,74,.09);
}
@supports not (backdrop-filter:blur(1px)){
  .topbar{background:var(--paper)}
}
.topbar-in{
  max-width:1024px;margin:0 auto;padding:11px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink)}
.brand-word{font-weight:700;font-size:18px;letter-spacing:.12em}
.brand-word em{font-style:normal;color:var(--flare)}
.nav{display:flex;gap:22px;font-size:14px;flex-wrap:wrap;letter-spacing:-.006em}
.nav a{color:var(--ink-soft);text-decoration:none;padding-bottom:2px;border-bottom:1px solid transparent}
.nav a:hover,.nav a.on{color:var(--ink);border-bottom-color:var(--flare)}
.langs{display:flex;gap:10px;font-size:13px}
.langs a{color:var(--ink-soft);text-decoration:none}
.langs a.on{color:var(--ink);font-weight:700}
.langs a:hover{color:var(--flare)}

.wrap{max-width:1024px;margin:0 auto;padding:0 24px}

.kicker{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--flare);font-weight:700;margin:0 0 16px}
h1{font-size:52px;line-height:1.07;margin:0 0 20px;font-weight:600;letter-spacing:-.022em}
.deck{font-size:21px;line-height:1.42;color:var(--ink-soft);margin:0 0 34px;max-width:32em;letter-spacing:-.012em}

.track{margin-top:8px}
.lap{display:grid;grid-template-columns:62px 1fr;padding:20px 0;align-items:baseline;border-bottom:1px solid rgba(28,43,74,.08)}
.lap-no{font-size:13px;font-weight:700;color:var(--ink-soft);letter-spacing:.08em}
.lap-title{font-weight:600;font-size:19px;line-height:1.3;margin:0 0 5px;letter-spacing:-.012em}
.lap-title a{text-decoration:none}
.lap-note{font-size:15px;color:var(--ink-soft);margin:0}
.lap.now .lap-no{color:var(--flare)}
.pick{display:inline-block;font-size:11px;letter-spacing:.16em;font-weight:700;color:var(--flare);border:1px solid var(--flare);border-radius:var(--pill);padding:2px 9px;margin-right:9px;vertical-align:2px}

.card-h{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 14px;font-weight:700}
.code-row{display:flex;align-items:stretch;gap:10px;margin-bottom:14px}

.code{
  flex:1;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--paper);
  font-size:25px;font-weight:700;letter-spacing:.06em;padding:11px 14px;line-height:1.3;text-align:center;
  display:flex;align-items:center;justify-content:center;
}
.copy{
  border:0;border-radius:var(--pill);background:var(--ink);color:#fff;
  font-family:inherit;font-size:14px;font-weight:600;letter-spacing:.01em;
  padding:0 26px;cursor:pointer;white-space:nowrap;min-height:46px;min-width:118px;
}
.copy:hover{background:var(--flare)}
.copy.done{background:var(--flare)}
.benefit{font-size:15.5px;margin:0 0 7px;line-height:1.5}
.benefit b{color:var(--flare)}
.fine{font-size:12px;color:var(--ink-soft);margin:0 0 18px;line-height:1.5}
.go{
  display:block;text-align:center;text-decoration:none;border:0;border-radius:var(--pill);
  background:var(--flare);color:#fff;font-size:15.5px;font-weight:600;padding:14px 12px;letter-spacing:-.006em;
}
.go:hover{background:var(--ink);color:#fff}
.disclose{font-size:12px;color:var(--ink-soft);margin:11px 0 0;line-height:1.55}

.band{padding:64px 0 8px;margin-top:0;border:0}
.band + .band{padding-top:56px}
main > .band:nth-of-type(even){
  background:var(--tint);border-radius:var(--r-lg);
  padding:52px 44px 40px;margin:36px 0;
}
.band-h{display:flex;align-items:baseline;justify-content:space-between;gap:18px;margin:0 0 24px;flex-wrap:wrap}
.band-h h2{font-size:32px;line-height:1.14;margin:0;font-weight:600;letter-spacing:-.018em}
.band-h .cnt{font-size:14px;color:var(--ink-soft)}
.band-h a{font-size:15px;color:var(--flare);text-decoration:none;border:0}
.band-h a:hover{text-decoration:underline}
.band-note{font-size:17px;line-height:1.55;color:var(--ink-soft);margin:-10px 0 26px;max-width:var(--measure)}

.rows{border-top:1px solid rgba(28,43,74,.1)}
.row{display:grid;grid-template-columns:104px 1fr;gap:20px;border-bottom:1px solid rgba(28,43,74,.1);padding:20px 0}
.row-tag{font-size:12px;color:var(--ink-soft);letter-spacing:.04em;padding-top:5px}
.row-title{margin:0 0 5px;font-size:19px;font-weight:600;line-height:1.36;letter-spacing:-.012em}
.row-title a{text-decoration:none}
.row-desc{margin:0;font-size:15px;color:var(--ink-soft);line-height:1.55}

.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tile{border:0;border-radius:var(--r-md);background:var(--card);padding:22px 22px 20px;box-shadow:0 1px 2px rgba(28,43,74,.06)}
main > .band:nth-of-type(even) .tile{background:#fff}
.tile h3{margin:0 0 7px;font-size:18px;font-weight:600;line-height:1.33;letter-spacing:-.012em}
.tile h3 a{text-decoration:none}
.tile p{margin:0;font-size:14.5px;color:var(--ink-soft);line-height:1.5}

.crumbs{font-size:14px;color:var(--ink-soft);padding:26px 0 0;margin:0}
.crumbs a{color:var(--ink-soft);text-decoration:none}
.crumbs a:hover{color:var(--flare)}
.article{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;padding:12px 0 72px}
.post-head{grid-column:1 / -1;padding:20px 0 30px;margin-bottom:34px;border-bottom:1px solid rgba(28,43,74,.1)}
.post-head h1{font-size:44px;line-height:1.09;margin:0 0 16px;letter-spacing:-.021em;max-width:19em}
.post-meta{font-size:14px;color:var(--ink-soft);margin:0}
.post-meta .mono{color:var(--ink)}
.prose{max-width:var(--measure);font-size:17.5px;line-height:1.66}
.prose h2{font-size:27px;line-height:1.2;margin:52px 0 14px;padding-top:0;border:0;font-weight:600;letter-spacing:-.016em}
.prose h3{font-size:20px;line-height:1.32;margin:34px 0 10px;font-weight:600;letter-spacing:-.012em}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-inline-start:24px}
.prose li{margin:0 0 9px}
.prose strong{font-weight:700}
.prose a{color:var(--flare);text-decoration:none;border-bottom:1px solid rgba(156,74,18,.35)}
.prose a:hover{border-bottom-color:var(--flare)}
.prose table{border-collapse:collapse;width:100%;margin:0 0 24px;font-size:15px}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:11px 12px;text-align:left;vertical-align:top}
.prose th{background:transparent;font-weight:600;border-bottom:1.5px solid var(--line-hard)}
.article-cover{margin:0 0 32px}
.article-cover img{border:0;border-radius:var(--r-md);width:100%}
.prose figure{margin:0 0 26px}

.shot{margin:30px 0 34px;max-width:var(--measure)}
.shot img{width:100%;border-radius:var(--r-md);border:1px solid rgba(28,43,74,.14)}
.shot figcaption{font-size:13.5px;color:var(--ink-soft);margin-top:11px;line-height:1.56}
.prose figcaption{font-size:13.5px;color:var(--ink-soft);margin-top:9px}

.toc{border:0;border-radius:var(--r-md);background:var(--tint);padding:20px 24px 18px;margin:0 0 34px;max-width:var(--measure)}
.toc p{margin:0 0 10px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);font-weight:700}
.toc ol{margin:0;padding-inline-start:20px;font-size:15.5px}
.toc li{margin:0 0 6px}
.toc a{text-decoration:none;color:var(--ink);border:0}
.toc a:hover{color:var(--flare)}

.callout{border-inline-start:3px solid var(--flare);border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--warn-bg);padding:16px 20px;margin:0 0 24px;font-size:16px;line-height:1.58}
.callout p{margin:0 0 9px}
.callout p:last-child{margin:0}
.answer{border:0;border-radius:var(--r-md);background:var(--tint);padding:20px 24px;margin:0 0 30px;font-size:17px;line-height:1.6}
.answer b{display:block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}

.qa{margin:48px 0 0;border-top:1px solid rgba(28,43,74,.1)}
.qa h2{font-size:24px;margin:30px 0 16px;border:0;padding:0;letter-spacing:-.016em}
.qa dt{font-weight:600;margin:20px 0 6px;font-size:17px;letter-spacing:-.01em}
.qa dd{margin:0;color:var(--ink-soft);font-size:16.5px}
.qa dl{margin:0}

.sidenote{border:0;padding-top:20px;font-size:14.5px}
.sidenote h2{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 14px;font-weight:700}
.sidenote ul{margin:0 0 26px;padding-inline-start:18px}
.sidenote li{margin:0 0 9px}
.sidenote a{color:var(--ink);text-decoration:none;border:0}
.sidenote a:hover{color:var(--flare)}

.readnext{grid-column:1 / -1;border-top:1px solid rgba(28,43,74,.1);margin-top:48px;padding-top:22px}
.readnext h2{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 14px;font-weight:700}
.readnext ul{margin:0;padding:0;list-style:none}
.readnext li{border-bottom:1px solid rgba(28,43,74,.08);padding:13px 0;font-size:17px;letter-spacing:-.01em}
.readnext a{text-decoration:none}

.tool{border:0;border-radius:var(--r-lg);background:var(--tint);padding:32px 32px 26px;margin:0 0 32px;max-width:46em}
.tool-row{display:grid;grid-template-columns:1fr 140px;gap:14px;align-items:center;margin:0 0 14px}
.tool-row label{font-size:15.5px}
.tool-row input,.tool-row select{
  font-family:"Space Mono",ui-monospace,monospace;font-size:16px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  padding:10px 12px;width:100%;min-height:46px;color:var(--ink);
}
.tool-row input:focus,.tool-row select:focus{outline:2px solid var(--flare);outline-offset:1px;border-color:var(--flare)}
.tool-out{border-top:1px solid rgba(28,43,74,.13);margin-top:22px;padding-top:20px}
.tool-big{font-family:"Space Mono",ui-monospace,monospace;font-size:38px;font-weight:700;line-height:1.14;margin:0 0 5px;color:var(--flare);letter-spacing:-.02em}
.tool-sub{font-size:14.5px;color:var(--ink-soft);margin:0 0 16px}
.tool-list{margin:0;padding:0;list-style:none;font-size:15px}
.tool-list li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid rgba(28,43,74,.1);padding:9px 0}
.tool-list b{font-family:"Space Mono",ui-monospace,monospace;font-weight:700}
.check{display:block;border-bottom:1px solid rgba(28,43,74,.1);padding:13px 0;font-size:16.5px;cursor:pointer;min-height:46px}
.check input{margin-inline-end:11px;width:18px;height:18px;vertical-align:-3px;accent-color:var(--flare)}
.check.hit{color:var(--ink-soft);text-decoration:line-through}
.verdict{border:0;border-radius:var(--r-md);background:#fff;padding:20px 24px;margin-top:22px;font-size:16.5px;line-height:1.58;box-shadow:0 1px 2px rgba(28,43,74,.07)}
details.guide{border-top:1px solid rgba(28,43,74,.13);margin-top:34px;padding-top:18px;max-width:var(--measure)}
details.guide summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;letter-spacing:-.012em}
details.guide summary::-webkit-details-marker{display:none}
details.guide summary::before{content:"+ ";color:var(--flare)}
details.guide[open] summary::before{content:"− "}
details.guide h3{font-size:17px;margin:24px 0 8px}
details.guide p,details.guide li{font-size:16px}

.foot{background:var(--tint);border-top:1px solid rgba(28,43,74,.08);margin-top:72px;padding:48px 0 56px;font-size:14.5px;color:var(--ink-soft)}
.foot-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:34px;margin-bottom:30px}
.foot h2{font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 12px;color:var(--ink);font-weight:700}
.foot ul{margin:0;padding:0;list-style:none}
.foot li{margin:0 0 8px}
.foot a{color:var(--ink-soft);text-decoration:none}
.foot a:hover{color:var(--flare)}
.foot-legal{border-top:1px solid rgba(28,43,74,.13);padding-top:20px;font-size:13px;line-height:1.68;max-width:60em}
.foot-legal p{margin:0 0 8px}

@media (max-width:980px){
  .article{grid-template-columns:1fr;gap:34px}
  .grid3{grid-template-columns:1fr 1fr}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  h1{font-size:34px;line-height:1.14;margin-bottom:14px;letter-spacing:-.018em}
  .post-head h1{font-size:30px;line-height:1.16}
  .deck{font-size:18px;margin-bottom:0}
  .kicker{margin-bottom:11px}
  .track{margin-top:0}
  .nav{gap:16px;font-size:13.5px}
  .lap{grid-template-columns:46px 1fr;padding:16px 0}
  .lap-title{font-size:17.5px}
  .band{padding-top:40px}
  .band + .band{padding-top:36px}
  main > .band:nth-of-type(even){padding:32px 20px 26px;margin:24px 0;border-radius:var(--r-md)}
  .band-h h2{font-size:25px}
  .band-note{font-size:16px}
  .code{font-size:23px}
  .row{grid-template-columns:1fr;gap:5px}
  .row-tag{padding-top:0}
  .row-title{font-size:17.5px}
  .grid3{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr}
  .tool{padding:22px 18px 18px;border-radius:var(--r-md)}
  .tool-row{grid-template-columns:1fr}
  .tool-big{font-size:31px}
  .prose{font-size:17px}
  .prose h2{font-size:23px;margin-top:40px}
  .prose h3{font-size:19px}
}

@media (max-width:720px){
  .topbar-in{flex-wrap:wrap;justify-content:flex-start;gap:10px;row-gap:9px;padding:10px 16px}
  .brand{order:1}
  .langs{order:2;margin-left:auto}
  .nav{
    order:3;flex-basis:100%;flex-wrap:nowrap;overflow-x:auto;gap:18px;
    padding-bottom:3px;scrollbar-width:none;-ms-overflow-style:none;
  }
  .nav::-webkit-scrollbar{display:none}
  .nav a{white-space:nowrap;flex:0 0 auto}
  .wrap{padding:0 16px}
  .topbar-in.wrap,.foot .wrap{padding-left:16px;padding-right:16px}

  .topbar{position:static;background:var(--paper);-webkit-backdrop-filter:none;backdrop-filter:none}
  :target,.prose h2,.prose h3{scroll-margin-top:16px}

  .copy{min-width:92px;padding:0 16px}
}

.track{position:relative}
.track::before{
  content:"";position:absolute;left:14px;top:18px;bottom:18px;width:2px;
  background:rgba(28,43,74,.13);
}
.lap{position:relative;align-items:start;transition:background .3s var(--ease)}
.lap:hover{background:rgba(28,43,74,.028);border-radius:var(--r-sm)}
.lap-no{
  position:relative;z-index:1;width:30px;height:30px;border-radius:50%;
  border:1.5px solid var(--line);background:var(--paper);
  display:grid;place-items:center;font-size:11.5px;letter-spacing:0;
  transition:border-color .3s var(--ease),color .3s var(--ease),background .3s var(--ease);
}
.lap:hover .lap-no{border-color:var(--ink);color:var(--ink)}
.lap.now{background:transparent;margin:0;padding-left:0;padding-right:0}
.lap.now .lap-no{border-color:var(--flare);background:var(--flare);color:#fff}

.lap-title a,.row-title a,.tile h3 a{
  background-image:linear-gradient(var(--flare),var(--flare));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1.5px;
  transition:background-size .45s var(--ease),color .25s var(--ease);
  padding-bottom:2px;
}
.lap-title a:hover,.row-title a:hover,.tile h3 a:hover{background-size:100% 1.5px}
.lap.now .lap-title a{border-bottom:0;background-size:100% 1.5px}

.tile{transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.tile:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(28,43,74,.1)}
.row{transition:background .3s var(--ease)}
.row:hover{background:rgba(28,43,74,.022)}

.copy,.go{transition:background .25s var(--ease),color .25s var(--ease),transform .18s var(--ease)}
.copy:hover,.go:hover{transform:scale(1.015)}
.copy:active,.go:active{transform:scale(.985)}
.nav a{transition:color .25s var(--ease),border-color .25s var(--ease)}

a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--flare);outline-offset:3px;border-radius:4px}

.reveal{opacity:0;transform:translateY(24px)}
.reveal.in{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease)}

@media (prefers-reduced-motion:reduce){
  .reveal,.reveal.in{opacity:1;transform:none;transition:none}
  .lap,.tile,.row,.copy,.go,.lap-no{transition:none}
  .copy:hover,.go:hover,.tile:hover{transform:none}
  .lap-title a,.row-title a,.tile h3 a{transition:none}
}
@media (max-width:720px){
  .track::before{left:11px}
  .lap-no{width:24px;height:24px;font-size:10.5px}
}

.stack{margin:28px 0 32px;border:0;border-radius:var(--r-md);background:var(--tint);padding:22px 22px 18px}
.stack-h{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 14px;font-weight:700}
.stack-row{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:center;margin-bottom:9px}
.stack-n{font-size:11px;font-weight:700;color:var(--ink-soft);font-family:"Space Mono",monospace}
.stack-bar{border:1px solid rgba(28,43,74,.14);border-radius:var(--r-sm);padding:9px 13px;font-size:14.5px;line-height:1.45;background:#fff}
.stack-row.on .stack-bar{background:rgba(156,74,18,.1);border-color:var(--flare)}
.stack-row.off .stack-bar{color:var(--ink-soft);border-style:dashed;background:transparent}
.stack-foot{font-size:13px;color:var(--ink-soft);margin:12px 0 0;line-height:1.55}

.gauge{margin:28px 0 32px;border:0;border-radius:var(--r-md);background:var(--tint);padding:22px 22px 18px}
.gauge-row{display:grid;grid-template-columns:58px 1fr 52px;gap:12px;align-items:center;margin-bottom:9px;font-size:14px}
.gauge-k{font-family:"Space Mono",monospace;font-weight:700}
.gauge-track{background:#fff;border:1px solid rgba(28,43,74,.12);border-radius:var(--pill);height:16px;position:relative;overflow:hidden}
.gauge-fill{position:absolute;inset:0 auto 0 0;background:var(--ink);border-radius:var(--pill)}
.gauge-row.hot .gauge-fill{background:var(--flare)}
.gauge-v{text-align:right;font-family:"Space Mono",monospace;font-size:12.5px;color:var(--ink-soft)}
@media (max-width:720px){
  .gauge-row{grid-template-columns:48px 1fr 46px;font-size:12.5px}
  .stack-row{grid-template-columns:18px 1fr;gap:9px}
}

.workbook{padding:72px 0 40px;max-width:860px}
.workbook-head{margin-bottom:44px}
.workbook-head h1{max-width:14em}

html[lang="en"] .workbook-head h1,
html[lang="sw"] .workbook-head h1{max-width:none}
.workbook-head .deck{margin-bottom:0;max-width:32em}

.lap-open{align-items:start;padding:28px 0 32px;border-bottom:1px solid rgba(28,43,74,.12)}
.lap-open .lap-title{font-size:23px;line-height:1.22;margin-bottom:18px;letter-spacing:-.016em}

.blank{
  border:0;border-radius:var(--r-lg);background:var(--card);
  padding:26px 28px 22px;margin:0 0 20px;
  box-shadow:0 2px 6px rgba(28,43,74,.07),0 14px 34px rgba(28,43,74,.07);
}
.blank-h{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-soft);margin:0 0 14px;font-weight:700;
}
.blank .code-row{margin-bottom:14px}
.blank .code{background:var(--tint);border-color:transparent}
.blank .benefit{font-size:16px;margin:0 0 7px;line-height:1.5}
.blank .fine{margin-bottom:16px}
.blank .go{font-size:16px;padding:15px 12px}
.blank .disclose{margin-bottom:0}

.lap-pick{margin:0 0 4px;font-size:18px;font-weight:600;line-height:1.45;letter-spacing:-.012em}
.lap-pick a{text-decoration:none}
.lap-alt{margin-top:10px;padding-top:10px;border-top:1px solid rgba(28,43,74,.1);font-size:14.5px}

@media (max-width:860px){
  .workbook{padding:36px 0 26px}
  .workbook-head{margin-bottom:28px}
  .lap-open{padding-top:20px;padding-bottom:24px}
  .lap-open .lap-title{font-size:19px;margin-bottom:14px}
  .blank{padding:20px 18px 16px;border-radius:var(--r-md);box-shadow:0 2px 6px rgba(28,43,74,.07),0 10px 24px rgba(28,43,74,.07)}
  .lap-pick{font-size:16.5px}
}

@media (min-width:981px){
  .sidenote{position:sticky;top:84px;align-self:start;max-height:calc(100vh - 104px);overflow-y:auto;
            scrollbar-width:thin}
}
.secnav{margin:0 0 26px}
.secnav ol{margin:0;padding:0;list-style:none;border-inline-start:2px solid rgba(28,43,74,.12)}
.secnav li{margin:0}
.secnav a{
  display:block;padding:6px 0 6px 14px;margin-inline-start:-2px;
  border-inline-start:2px solid transparent;border-bottom:0;
  font-size:14px;line-height:1.42;color:var(--ink-soft);
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.secnav a:hover{color:var(--ink);border-bottom:0}
.secnav a.on{color:var(--ink);font-weight:600;border-inline-start-color:var(--flare)}
@media (prefers-reduced-motion:reduce){.secnav a{transition:none}}

:target{scroll-margin-top:76px}
.prose h2,.prose h3{scroll-margin-top:76px}