/* docs.css — Operational Transparency Board documentation
   Design tokens mirror the landing page (site/index.html). */

:root{
  --brand:#c62828; --brand-dark:#9f1f1f;
  --ink:#111827; --ink-2:#374151; --muted:#6b7280;
  --line:#e5e7eb; --line-2:#f3f4f6; --bg:#ffffff; --soft:#f9fafb;
  --code-bg:#f6f7f9; --good:#047857;
  --radius:10px; --sidebar:264px; --maxw:860px;
}
@media (prefers-color-scheme: dark){
  :root{
    --ink:#f3f4f6; --ink-2:#d1d5db; --muted:#9ca3af;
    --line:#27272a; --line-2:#1c1c1f; --bg:#0b0b0d; --soft:#131316;
    --code-bg:#16161a; --brand:#ef4444; --brand-dark:#dc2626; --good:#34d399;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}

/* header */
header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 90%,transparent);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.topbar{max-width:1200px;margin:0 auto;padding:0 16px;display:flex;align-items:center;gap:22px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;color:var(--ink);text-decoration:none}
.mark{width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:11px;font-weight:800;letter-spacing:.02em;flex:0 0 auto}
.brand span.t{font-size:.95rem}
.topnav{margin-left:auto;display:flex;gap:20px;align-items:center;font-size:.88rem}
.topnav a{color:var(--ink-2)}
.topnav a:hover{color:var(--brand);text-decoration:none}
@media(max-width:720px){.topnav a.hide{display:none}.brand span.t{display:none}}

/* layout */
.layout{max-width:1200px;margin:0 auto;padding:0 16px;display:grid;grid-template-columns:var(--sidebar) 1fr;gap:44px;align-items:start}
@media(max-width:900px){.layout{grid-template-columns:1fr;gap:0}}

/* sidebar */
aside{position:sticky;top:76px;padding:32px 0 48px;font-size:.9rem}
@media(max-width:900px){
  aside{position:static;padding:20px 0 0;border-bottom:1px solid var(--line);margin-bottom:28px}
  aside .navlist{display:flex;flex-wrap:wrap;gap:8px 18px}
}
aside h4{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);
  margin:0 0 10px;font-weight:700}
@media(max-width:900px){aside h4{margin-bottom:8px}}
.navlist{margin:0 0 26px;padding:0;list-style:none}
.navlist li{margin:0 0 3px}
.navlist a{display:block;padding:6px 10px;border-radius:7px;color:var(--ink-2)}
.navlist a:hover{background:var(--soft);color:var(--brand);text-decoration:none}
.navlist a.active{background:color-mix(in srgb,var(--brand) 9%,transparent);color:var(--brand);font-weight:600}
@media(max-width:900px){.navlist a{padding:6px 8px}}

/* doc body */
main{padding:32px 0 80px;max-width:var(--maxw);min-width:0}
.doc h1{font-size:2rem;letter-spacing:-.02em;margin:0 0 .6em;line-height:1.2}
.doc h2{font-size:1.3rem;letter-spacing:-.015em;margin:2.2em 0 .5em;padding-top:.2em;line-height:1.25}
.doc h3{font-size:1.05rem;letter-spacing:-.01em;margin:1.8em 0 .4em}
.doc h4{font-size:.95rem;margin:1.5em 0 .3em;color:var(--ink-2)}
.doc p,.doc li{color:var(--ink-2)}
.doc p{margin:0 0 1em}
.doc ul,.doc ol{padding-left:24px;margin:0 0 1.1em}
.doc li{margin-bottom:.35em}
.doc hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.doc blockquote{margin:1.4em 0;padding:14px 18px;border-left:3px solid var(--brand);
  background:var(--soft);border-radius:0 8px 8px 0;color:var(--ink-2)}
.doc blockquote p:last-child{margin-bottom:0}
.doc strong{color:var(--ink)}

/* code */
.doc code{background:var(--code-bg);padding:.15em .38em;border-radius:5px;
  font:.88em/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;border:1px solid var(--line)}
.doc pre{background:var(--code-bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;overflow-x:auto;margin:0 0 1.4em}
.doc pre code{background:none;border:0;padding:0;font-size:.85rem;line-height:1.6}

/* tables */
.doc table{border-collapse:collapse;width:100%;margin:0 0 1.5em;font-size:.9rem;display:block;overflow-x:auto}
.doc th,.doc td{padding:10px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
.doc thead th{background:var(--soft);font-weight:600;color:var(--ink);white-space:nowrap}
.doc tbody tr:nth-child(even){background:color-mix(in srgb,var(--soft) 55%,transparent)}

/* page footer nav */
.pagenav{display:flex;justify-content:space-between;gap:16px;margin-top:56px;padding-top:28px;
  border-top:1px solid var(--line);font-size:.9rem}
.pagenav a{max-width:48%}

/* footer */
footer{border-top:1px solid var(--line);padding:28px 0;font-size:.86rem;color:var(--muted)}
.foot{max-width:1200px;margin:0 auto;padding:0 16px;display:flex;flex-wrap:wrap;gap:14px 26px;
  align-items:center;justify-content:space-between}
.foot nav{display:flex;gap:20px;flex-wrap:wrap}
.foot a{color:var(--muted)}
.foot a:hover{color:var(--brand)}