:root{
  --ink:#173a3c;--muted:#526968;--soft:#6c7f7c;--line:#dde6df;--panel:#fff;--page:#f4f6f4;--tint:#eef4ee;
  --teal:#277e6a;--teal-dark:#156858;--amber:#b88135;--blue:#3f6fb5;--red:#b5523f;--grey:#9aa9a6;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--page);font-synthesis:none
}
*{box-sizing:border-box}
body{margin:0;background:var(--page)}
a{color:var(--teal-dark)}
a:focus-visible,select:focus-visible,summary:focus-visible,button:focus-visible{outline:3px solid #b88627;outline-offset:3px}
.site-header{display:flex;align-items:center;gap:28px;padding:14px 5vw;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-size:24px;font-weight:800;text-decoration:none;color:var(--teal-dark);display:flex;align-items:center;gap:12px}
.brand span{font-size:10px;letter-spacing:2px;color:var(--muted)}
.site-header nav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.site-header nav a{padding:8px 12px;border-radius:8px;font-size:13px;text-decoration:none;color:var(--muted)}
.site-header nav a:hover{background:var(--tint);color:var(--ink)}
.site-header nav a[aria-current=page]{background:var(--tint);color:var(--teal-dark);font-weight:650}
.badge{font-size:11px;background:var(--tint);border:1px solid #d7e5d8;border-radius:20px;padding:6px 12px;white-space:nowrap}
main{max-width:1240px;margin:auto;padding:44px 28px 24px}
.eyebrow{font-size:11px;font-weight:750;letter-spacing:1.6px;color:#527970;text-transform:uppercase}
h1{font-size:clamp(30px,4vw,46px);letter-spacing:-1.6px;margin:12px 0;line-height:1.08}
h2{font-size:22px;letter-spacing:-.5px;margin:6px 0 8px;line-height:1.25}
h3{font-size:16px;margin:4px 0 6px}
p,li{font-size:14px;color:var(--muted);line-height:1.65}
.intro{font-size:17px;max-width:820px;margin-bottom:22px}
.notice{display:flex;gap:16px;flex-wrap:wrap;padding:14px 18px;background:#e8efea;border-left:3px solid #548777;font-size:13px;line-height:1.6;border-radius:4px;margin-bottom:8px}
.notice span{color:var(--muted)}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:22px 0 34px}
.metrics article,.card{background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:22px}
.metrics strong{display:block;font-size:30px;letter-spacing:-1px;margin:10px 0 6px;font-variant-numeric:tabular-nums}
.metrics p{margin:0;font-size:12px}
.label{font-size:13px;color:var(--muted)}
.card{margin-bottom:22px;min-width:0}
.question{margin-top:40px}
.answer{padding:14px 18px;background:#f1f5f1;border-radius:8px;font-size:15px;line-height:1.6;color:var(--ink);margin:10px 0 16px}
.answer strong{color:var(--teal-dark)}
.limits{font-size:12.5px;border-top:1px dashed var(--line);margin-top:14px;padding-top:10px}
.limits strong{color:var(--ink)}
.chart{height:340px;width:100%}
.chart.short{height:260px}
.chart.tall{height:420px}
.columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.columns.wide-left{grid-template-columns:1.35fr 1fr}
.controls{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-end;margin:6px 0 12px}
label{font-size:12px;color:var(--muted)}
select{display:block;background:#fff;border:1px solid #bacbc2;border-radius:7px;padding:9px 10px;margin-top:5px;color:var(--ink);font:inherit;font-size:13px}
.table-wrap{overflow-x:auto;margin-top:8px}
table{border-collapse:collapse;width:100%;font-size:13px;font-variant-numeric:tabular-nums}
th{text-align:left;font-weight:650;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line);padding:8px 10px;white-space:nowrap}
td{border-bottom:1px solid #edf1ed;padding:8px 10px;vertical-align:top}
td.num,th.num{text-align:right}
.tag{display:inline-block;font-size:11px;border-radius:12px;padding:2px 9px;background:var(--tint);color:var(--teal-dark);white-space:nowrap}
.tag.warn{background:#f7efe2;color:#8a5a17}
.tag.bad{background:#f6e6e2;color:#8f3b2a}
.tag.muted{background:#eef1f0;color:var(--soft)}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.cards a.card{text-decoration:none;color:inherit;display:block;transition:border-color .15s}
.cards a.card:hover{border-color:#9fc0b3}
.cards .card p{margin:6px 0 0}
.cards .go{font-size:13px;font-weight:650;color:var(--teal-dark);margin-top:12px;display:block}
details.card summary{cursor:pointer;font-size:16px;font-weight:650}
.downloads{display:flex;flex-wrap:wrap;gap:16px;margin:14px 0;font-size:13px}
.legend-note{font-size:12px;color:var(--soft)}
code{font-size:12px;background:#eef2ef;padding:1px 5px;border-radius:4px}
footer{display:flex;justify-content:space-between;gap:15px;color:#617673;font-size:11px;margin-top:40px;padding-top:16px;border-top:1px solid var(--line);flex-wrap:wrap}
@media(max-width:900px){.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.columns,.columns.wide-left,.cards{grid-template-columns:1fr}}
@media(max-width:600px){main{padding:26px 16px}.site-header{padding:12px 16px;gap:10px}.badge{display:none}.card,.metrics article{padding:16px}.metrics strong{font-size:24px}.chart{height:300px}}