:root{
  --bg:#f7f7f5;--fg:#1d1d1b;--muted:#4f4f4a;--card:#ffffff;--line:#d0d0c9;
  --accent:#1f5f8b;--btn-fg:#ffffff;--tag-bg:#e8f0f7;--tag-fg:#1d3f5c;
  --warn-bg:#fff4d6;--warn-fg:#1d1d1b;--warn-line:#b08d12;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#161816;--fg:#eeeeea;--muted:#b5b4ad;--card:#1f211f;--line:#3a3d39;
    --accent:#8cc3e8;--btn-fg:#0d1b26;--tag-bg:#1c2e3c;--tag-fg:#cfe6f7;
    --warn-bg:#3a3218;--warn-fg:#f3ead0;--warn-line:#8a7420;
  }
}
:root[data-theme="dark"]{
  --bg:#161816;--fg:#eeeeea;--muted:#b5b4ad;--card:#1f211f;--line:#3a3d39;
  --accent:#8cc3e8;--btn-fg:#0d1b26;--tag-bg:#1c2e3c;--tag-fg:#cfe6f7;
  --warn-bg:#3a3218;--warn-fg:#f3ead0;--warn-line:#8a7420;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:17px;line-height:1.7}
a{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.skip{position:absolute;top:-40px;inset-inline-start:8px;background:var(--card);color:var(--fg);padding:8px 12px;border-radius:8px;z-index:10}
.skip:focus{top:8px}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
header.site-header{padding:16px 0;border-bottom:1px solid var(--line);background:var(--card)}
header.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px}
.brand{font-weight:700;font-size:1.1rem;color:var(--fg);text-decoration:none}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 14px}
nav a{color:var(--accent);text-decoration:none;padding:4px 0}
nav a:hover{text-decoration:underline}
.theme-btn{font:inherit;font-size:.9rem;padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer}
main{padding:24px 0 8px}
h1{font-size:1.7rem;line-height:1.3;margin:8px 0 10px}
h2{font-size:1.25rem;margin:28px 0 8px}
h3{font-size:1.05rem;margin:0 0 6px}
p{margin:8px 0}
.lead{color:var(--muted);font-size:1.05rem}
.grid{display:grid;grid-template-columns:1fr;gap:16px;margin:20px 0}
@media (min-width:640px){.grid{grid-template-columns:1fr 1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:8px}
.card h3 a{color:var(--fg);text-decoration:none}
.card h3 a:hover{text-decoration:underline}
.card .open{align-self:flex-start;margin-top:auto;font-weight:600;color:var(--accent)}
.label{font-size:.85rem;font-weight:700;color:var(--muted);margin:0}
.tag{display:inline-block;align-self:flex-start;font-size:.85rem;line-height:1.5;background:var(--tag-bg);color:var(--tag-fg);padding:4px 10px;border-radius:999px}
.note{color:var(--muted);font-size:.95rem;margin:0}
.warn{background:var(--warn-bg);color:var(--warn-fg);border:1px solid var(--warn-line);border-radius:12px;padding:14px 16px;margin:16px 0}
.card-fallback{margin:16px 0}
.doc h2:first-child{margin-top:8px}
.doc ul{padding-inline-start:20px}
.doc li{margin:6px 0}
footer.site-footer{border-top:1px solid var(--line);margin-top:32px;padding:20px 0 40px;color:var(--muted);font-size:.95rem}
footer.site-footer ul{list-style:none;margin:0 0 8px;padding:0;display:flex;flex-wrap:wrap;gap:4px 14px}
footer.site-footer a{color:var(--accent)}