/* Mobile-first, no external fonts, no JS. */
:root{--fg:#1a1d21;--muted:#4a5560;--bg:#fff;--alt:#f3f6f8;--brand:#0b5f86;--brand-d:#084766;--line:#d5dde3;
--free:#0f6b3a;--free-bg:#e3f4ea;--some:#6a4c00;--some-bg:#fff4d6;--lab:#0b4f86;--lab-bg:#e3eef8;--priv:#4a4f55;--priv-bg:#eceef0}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:1.0625rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}
.wrap{max-width:46rem;margin:0 auto;padding:0 1rem}
a{color:var(--brand);text-underline-offset:.15em}
a:hover{color:var(--brand-d)}
:focus-visible{outline:3px solid #f2a900;outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:#000;color:#fff;padding:.5rem 1rem;z-index:10}
.skip:focus{left:0}
.site-header{border-bottom:1px solid var(--line);background:var(--alt)}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.25rem 1rem;padding:.6rem 1rem}
.brand{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--fg)}
.nav{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem 1rem}
.nav a{display:inline-block;padding:.35rem 0;text-decoration:none}
.nav a[aria-current=page]{font-weight:700;text-decoration:underline}
main{padding:1rem 1rem 3rem}
h1{font-size:1.85rem;line-height:1.2;margin:.75rem 0}
h2{font-size:1.4rem;margin-top:2.25rem;line-height:1.25}
h3{font-size:1.15rem}
h4{font-size:1rem;margin:1rem 0 .25rem}
.h-small{font-size:1rem;margin:0 0 .25rem}
.lede{font-size:1.15rem}
.meta,.small,.cite{color:var(--muted);font-size:.92rem}
.crumbs ol{list-style:none;padding:0;margin:.75rem 0 0;display:flex;flex-wrap:wrap;gap:.25rem;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:.25rem}
.disclosure{background:var(--alt);border-left:4px solid var(--brand);padding:.5rem 1rem;margin:1rem 0;font-size:.92rem}
.toc{background:var(--alt);padding:.75rem 1rem;border-radius:6px;margin:1rem 0}
.toc ol{margin:0;padding-left:1.25rem}
.button{display:inline-block;background:var(--brand);color:#fff;padding:.7rem 1.1rem;border-radius:6px;text-decoration:none;font-weight:600}
.button:hover{background:var(--brand-d);color:#fff}
.cards{display:grid;gap:1rem}
.card{border:1px solid var(--line);border-radius:8px;padding:.25rem 1rem}
.table-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.95rem}
caption{text-align:left;font-weight:600;padding:.5rem 0}
th,td{border-bottom:1px solid var(--line);padding:.4rem .5rem;text-align:left;vertical-align:top}
thead th{background:var(--alt)}
.badge{display:inline-block;font-size:.78rem;font-weight:600;padding:.1rem .45rem;border-radius:999px;vertical-align:middle;white-space:nowrap}
.badge-free{background:var(--free-bg);color:var(--free)}
.badge-some{background:var(--some-bg);color:var(--some)}
.badge-lab{background:var(--lab-bg);color:var(--lab)}
.badge-private{background:var(--priv-bg);color:var(--priv)}
.legend{list-style:none;padding:0}
.legend li{margin:.25rem 0}
.state{border-top:2px solid var(--line);padding-top:.5rem;margin-top:1.5rem}
.state h3{margin-bottom:.25rem}
.facts li{margin-bottom:.4rem}
.cite{display:block}
.caveat{background:var(--some-bg);padding:.4rem .75rem;border-radius:4px;font-size:.92rem}
.back{font-size:.9rem}
.sources ul{margin:.25rem 0 .75rem}
.site-footer{border-top:1px solid var(--line);background:var(--alt);padding:1rem 0;font-size:.92rem}
code{background:var(--alt);padding:0 .2rem}
@media (min-width:40rem){.cards{grid-template-columns:repeat(3,1fr)}h1{font-size:2.2rem}}
@media (prefers-color-scheme:dark){:root{--fg:#e8ecef;--muted:#b3bec7;--bg:#121619;--alt:#1c2227;--brand:#6cc3ee;--brand-d:#9dd8f5;--line:#33404a;
--free:#8be0ad;--free-bg:#163626;--some:#f3d27a;--some-bg:#3a2f10;--lab:#9cc8f2;--lab-bg:#16304a;--priv:#cfd5da;--priv-bg:#2a3036}
.button{color:#06212f}.button:hover{color:#06212f}}
@media print{.site-header nav,.skip,.toc{display:none}}