:root{
  --paper:#f5f2ea;
  --paper-2:#efece2;
  --ink:#17160f;
  --ink-soft:#3a382e;
  --muted:#6d6a5d;
  --line:#dcd6c7;
  --line-strong:#c4bda9;
  --accent:#9c3d1b;
  --accent-ink:#7a2f14;
  --accent-soft:#f1e3d7;
  --green:#2f5d45;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Code",Consolas,monospace;
  --wrap:1180px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(1100px 420px at 78% -8%, rgba(156,61,27,.055), transparent 60%);
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent-ink)}
img{max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
main{flex:1 0 auto;width:100%}

/* ---------- header ---------- */
.site-head{
  border-bottom:1px solid var(--line);
  background:rgba(245,242,234,.86);
  backdrop-filter:saturate(120%) blur(6px);
  position:sticky;top:0;z-index:20;
}
.head-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
.brand{display:flex;align-items:baseline;gap:8px}
.brand b{font-family:var(--serif);font-size:21px;font-weight:600;letter-spacing:-.01em}
.brand span{font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;color:var(--muted);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--ink-soft)}
.nav a{position:relative}
.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;background:var(--accent)}
.head-cta{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid var(--ink);border-radius:2px;padding:9px 14px;transition:background .15s,color .15s
}
.head-cta:hover{background:var(--ink);color:var(--paper)}
@media(max-width:820px){.nav{display:none}}

/* ---------- hero ---------- */
.hero{padding:66px 0 50px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:60px;align-items:end}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:34px}}
.hero-panel{border-left:1px solid var(--line);padding-left:30px}
@media(max-width:900px){.hero-panel{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:26px}}
.hero-panel h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;font-weight:500}
.rel{display:grid;gap:11px;font-size:13px}
.rel-row{display:grid;grid-template-columns:52px 1fr auto;gap:12px;align-items:baseline}
.rel-row .date{font-family:var(--mono);font-size:11px;color:var(--muted)}
.rel-row .name{color:var(--ink);border-bottom:1px solid transparent}
.rel-row a.name:hover{border-color:var(--accent)}
.rel-row .size{font-family:var(--mono);font-size:11px;color:var(--muted)}
.rel-foot{margin-top:16px;font-family:var(--mono);font-size:11px;color:var(--muted);display:flex;gap:10px;align-items:center}
.rel-foot a{border-bottom:1px solid var(--line-strong)}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--line-strong)}
h1{
  font-family:var(--serif);font-weight:500;font-size:clamp(36px,4.4vw,56px);
  line-height:1.06;letter-spacing:-.025em;margin:20px 0 0;max-width:15ch;text-wrap:balance;
}
h1 em{font-style:italic;color:var(--accent-ink)}
.lede{max-width:52ch;margin:20px 0 0;font-size:17px;color:var(--ink-soft)}
.hero-actions{display:flex;gap:10px;margin-top:30px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:9px;border:1px solid var(--ink);
  padding:11px 16px;font-size:14px;border-radius:2px;transition:.15s background,.15s color;
}
.btn.primary{background:var(--ink);color:var(--paper)}
.btn.primary:hover{background:var(--accent);border-color:var(--accent)}
.btn.ghost{border-color:var(--line-strong)}
.btn.ghost:hover{border-color:var(--ink)}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.stat{padding:24px 0;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--mono);font-size:24px;font-weight:500;letter-spacing:-.03em}
.stat span{font-size:12.5px;color:var(--muted)}
.stat{padding-left:22px}
.stat:first-child{padding-left:0}
@media(max-width:760px){.stats{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}}

/* ---------- section shell ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:10px}
h2{font-family:var(--serif);font-weight:500;font-size:31px;letter-spacing:-.02em;margin:0}
.section-head p{max-width:46ch;color:var(--muted);font-size:14.5px;margin:0}

/* ---------- filters ---------- */
.tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:6px}
.chip{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--line-strong);background:transparent;color:var(--ink-soft);
  padding:7px 12px;border-radius:999px;cursor:pointer;transition:.15s;
}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.search{
  margin-left:auto;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line-strong);
  padding:6px 2px;min-width:220px
}
.search input{border:0;background:transparent;outline:none;font-family:var(--sans);font-size:14px;width:100%;color:var(--ink)}
.search svg{flex:none;opacity:.5}
@media(max-width:700px){.search{margin-left:0;width:100%}}

/* ---------- dataset list ---------- */
.datasets{border-top:1px solid var(--ink)}
.ds{
  display:grid;grid-template-columns:minmax(180px,1.05fr) minmax(0,1.75fr) 74px 76px 78px 48px;
  gap:20px;align-items:baseline;padding:17px 6px;border-bottom:1px solid var(--line);
  transition:background .12s;position:relative
}
.ds:hover{background:rgba(156,61,27,.045)}
.ds-name{font-size:15.5px;font-weight:600;letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.ds-name .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none}
.ds-desc{font-size:13.8px;color:var(--muted);line-height:1.45}
.ds-meta{font-family:var(--mono);font-size:12px;color:var(--ink-soft);white-space:nowrap}
.ds-date{font-family:var(--mono);font-size:12px;color:var(--muted);white-space:nowrap}
.ds-get{
  justify-self:end;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  border-bottom:1px solid var(--line-strong);padding-bottom:2px;color:var(--ink-soft)
}
.ds:hover .ds-get{color:var(--accent);border-color:var(--accent)}
@media(max-width:940px){
  .ds{grid-template-columns:1fr auto;gap:6px 16px;padding:16px 4px}
  .ds-desc{grid-column:1/-1;order:3}
  .ds-meta{order:2}
  .ds-date{display:none}
  .ds-get{order:1;grid-row:1;grid-column:2}
}

/* ---------- docs strip ---------- */
.docs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.doc{padding:26px 24px;border-right:1px solid var(--line)}
.doc:last-child{border-right:0}
.doc:first-child{padding-left:0}
.doc .num{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.12em}
.doc h3{font-family:var(--serif);font-weight:500;font-size:19px;margin:10px 0 8px}
.doc p{font-size:13.8px;color:var(--muted);margin:0}
@media(max-width:820px){.docs-grid{grid-template-columns:1fr}.doc{border-right:0;border-bottom:1px solid var(--line);padding-left:0}.doc:last-child{border-bottom:0}}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start;padding:64px 0}
.about p{font-size:15.5px;color:var(--ink-soft);max-width:52ch}
.about p + p{margin-top:14px}
.note{border-left:2px solid var(--accent);padding:2px 0 2px 16px;font-size:13.5px;color:var(--muted)}
.note b{color:var(--ink);font-weight:600}
@media(max-width:820px){.about{grid-template-columns:1fr;gap:28px}}

/* ---------- footer ---------- */
.foot{background:var(--ink);color:#cfc9b8;padding:52px 0 34px;margin-top:auto}
.foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.foot .brand b{color:#f5f2ea}
.foot .brand span{color:#8d8877}
.foot p{font-size:13px;color:#a49e8d;max-width:36ch;margin:14px 0 0}
.foot h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:#8d8877;margin:0 0 12px;font-weight:500}
.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:13.5px}
.foot a{color:#cfc9b8}
.foot a:hover{color:#fff}
.foot-base{border-top:1px solid #2b2a22;margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-base small{font-family:var(--mono);font-size:11px;color:#8d8877;letter-spacing:.04em}
.status{display:inline-flex;align-items:center;gap:7px}
.status i{width:6px;height:6px;border-radius:50%;background:#5fa77f;display:inline-block}
@media(max-width:820px){.foot .wrap{grid-template-columns:1fr 1fr}.foot .brand{grid-column:1/-1}}

/* ---------- docs page ---------- */
.docs-layout{display:grid;grid-template-columns:210px 1fr;gap:56px;padding:56px 0}
.side{position:sticky;top:88px;align-self:start;font-size:13.5px}
.side h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.side a{display:block;padding:6px 0;color:var(--ink-soft);border-left:2px solid transparent;padding-left:12px;margin-left:-14px}
.side a.on{border-color:var(--accent);color:var(--ink)}
.prose h1{font-size:40px;margin:0 0 18px}
.prose h2{font-size:24px;margin:38px 0 12px}
.prose p,.prose li{font-size:15px;color:var(--ink-soft);max-width:66ch}
.prose code{font-family:var(--mono);font-size:.88em;background:var(--paper-2);padding:2px 6px;border-radius:2px;border:1px solid var(--line)}
.prose pre{background:#1b1a13;color:#e8e2d2;padding:18px 20px;overflow:auto;border-radius:3px;font-size:13px;line-height:1.6}
.prose pre code{background:none;border:0;padding:0;color:inherit}
.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:18px 0}
.prose th{text-align:left;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--ink)}
.prose td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
@media(max-width:820px){.docs-layout{grid-template-columns:1fr;gap:24px}.side{position:static}}

/* ---------- misc ---------- */
.center-note{padding:90px 0;text-align:center}
.center-note h1{max-width:none;font-size:52px}
.center-note p{color:var(--muted);margin:12px 0 26px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}