:root{
  --green:#174A3B;--aqua:#29A6A0;--sky:#75B7D8;
  --bg:#F7FAF8;--surface:#FFFFFF;--ink:#14231E;--muted:#526660;--line:#DCE6E1;
  --link:#11695F;--accent-bg:#E7F3F1;--warn-bg:#FFF6E0;--warn-ink:#6B4A00;
  --c-good:#3BAE5B;--c-mod:#E3BC17;--c-usg:#F08A24;--c-unh:#D93A2B;--c-vunh:#8F3F97;--c-haz:#7E0023;
  --radius:10px;--max:1080px;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0F1A17;--surface:#15241F;--ink:#E6EFEB;--muted:#9DB3AB;--line:#284139;
  --link:#6FD3C9;--accent-bg:#17322C;--warn-bg:#2E2610;--warn-ink:#F2D58A;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.6;font-size:17px}
a{color:var(--link)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--aqua);outline-offset:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;z-index:10}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
header.site{background:var(--green);color:#fff}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:1.2rem;letter-spacing:-.01em}
.brand img{width:34px;height:34px}
.brand span b{color:var(--sky);font-weight:700}
nav.top a{color:#DDF1EC;text-decoration:none;margin-left:18px;font-size:.95rem}
nav.top a:hover{color:#fff;text-decoration:underline}
main{padding:28px 0 56px}
h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.2;margin:.2em 0 .4em;letter-spacing:-.02em}
h2{font-size:1.35rem;margin:2em 0 .6em;line-height:1.3}
h3{font-size:1.08rem;margin:1.4em 0 .4em}
p{margin:.6em 0 1em}
.lede{font-size:1.12rem;color:var(--muted);max-width:68ch}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:6px}
.crumbs a{color:var(--muted)}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"›";margin-right:6px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin:16px 0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:18px 0}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.stat .v{font-size:1.6rem;font-weight:700;line-height:1.1}
.stat .k{font-size:.85rem;color:var(--muted);margin-top:4px}
.note{background:var(--accent-bg);border-radius:var(--radius);padding:14px 18px;margin:18px 0;font-size:.95rem}
.warn{background:var(--warn-bg);color:var(--warn-ink);border-radius:var(--radius);padding:12px 16px;margin:16px 0;font-size:.95rem}
.source{font-size:.88rem;color:var(--muted);border-top:1px solid var(--line);margin-top:28px;padding-top:12px}
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.92rem;font-variant-numeric:tabular-nums}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
th:first-child,td:first-child{text-align:left}
thead th{background:var(--accent-bg);font-weight:600;position:sticky;top:0}
th button{all:unset;cursor:pointer;font-weight:600}
th button::after{content:" ↕";color:var(--muted);font-size:.8em}
tbody tr:last-child td{border-bottom:0}
.chart{width:100%;height:auto;display:block}
.chart text{fill:var(--muted);font-size:11px;font-family:inherit}
.chart .grid{stroke:var(--line)}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.85rem;color:var(--muted);margin:8px 0 0;padding:0;list-style:none}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.search{position:relative;max-width:620px;margin:22px 0 8px}
.search label{display:block;font-weight:600;margin-bottom:6px}
.search input{width:100%;font-size:1.1rem;padding:14px 16px;border:2px solid var(--green);border-radius:12px;background:var(--surface);color:var(--ink)}
@media (prefers-color-scheme:dark){.search input{border-color:var(--aqua)}}
.search ul{list-style:none;margin:6px 0 0;padding:0;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.search li a{display:block;padding:10px 16px;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--line)}
.search li:last-child a{border-bottom:0}
.search li a:hover,.search li a:focus{background:var(--accent-bg)}
.search li small{color:var(--muted)}
.hint{font-size:.9rem;color:var(--muted)}
.hero{background:linear-gradient(180deg,var(--accent-bg),transparent);border-radius:16px;padding:26px 22px;margin-top:-6px}
.cols{columns:3 220px;column-gap:28px;padding:0;list-style:none}
.cols li{break-inside:avoid;padding:3px 0}
.cols li small{color:var(--muted)}
.links{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0}
.links a{display:inline-block;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 12px;text-decoration:none;font-size:.92rem}
footer.site{border-top:1px solid var(--line);padding:26px 0 40px;font-size:.9rem;color:var(--muted)}
footer.site nav a{color:var(--muted);margin-right:16px;display:inline-block;margin-bottom:6px}
.fixture{background:#B00020;color:#fff;text-align:center;padding:8px;font-weight:700}
@media (max-width:640px){
  body{font-size:16px}
  nav.top a{margin-left:0;margin-right:14px}
  header.site .wrap{padding-top:10px;padding-bottom:10px}
}
@media print{header.site,footer.site,.search{display:none}}