:root{
  color-scheme:light dark;
  --bg:#fbfbf9; --fg:#141413; --muted:#6b6a63; --line:#e6e4dd; --accent:#1a6b6b;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#191917; --fg:#f5f4ef; --muted:#a3a199; --line:#2f2e2a; --accent:#5fb3b3;}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
  font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}
.wrap{max-width:44rem;margin:0 auto;padding:3rem 1.5rem 5rem}
header{border-bottom:1px solid var(--line);margin-bottom:2.5rem;padding-bottom:1.25rem;
  display:flex;gap:1.25rem;align-items:baseline;flex-wrap:wrap}
.brand{font-weight:650;letter-spacing:-.01em}
nav a{color:var(--muted);text-decoration:none;margin-right:1rem;font-size:.9375rem}
nav a:hover{color:var(--fg)}
h1{font-size:1.875rem;line-height:1.25;letter-spacing:-.02em;margin:0 0 .75rem}
h2{font-size:1.125rem;margin:2.25rem 0 .5rem}
p,li{color:var(--fg)}
p{margin:0 0 1rem}
.lede{font-size:1.0625rem;color:var(--muted)}
ul{padding-left:1.15rem;margin:0 0 1rem}
li{margin:.35rem 0}
a{color:var(--accent)}
footer{margin-top:3.5rem;padding-top:1.25rem;border-top:1px solid var(--line);
  color:var(--muted);font-size:.875rem}
code{background:color-mix(in srgb,var(--fg) 8%,transparent);padding:.1em .35em;
  border-radius:4px;font-size:.9em}
.btn{display:inline-block;background:var(--accent);color:var(--bg);text-decoration:none;
  font-weight:600;padding:.6rem 1.1rem;border-radius:6px;font-size:.9375rem}
.btn:hover{filter:brightness(1.08)}
.note{border:1px solid var(--line);border-radius:8px;padding:1rem 1.15rem;margin:0 0 1rem;
  background:color-mix(in srgb,var(--fg) 3%,transparent)}
.note.bad{border-color:color-mix(in srgb,#c0392b 45%,var(--line))}
.kv{color:var(--muted);font-size:.875rem;margin:.25rem 0}