:root {
  color-scheme: dark light;
  --bg: #050607;
  --surface: #101214;
  --text: #EEF0F2;
  --muted: #A9AFB6;
  --line: #262A2F;
  --accent: #C8FF3E;
  --on-accent: #050607;
  --link: #C8FF3E;
  --callout: #12170A;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #F6F7F2;
    --surface: #FFFFFF;
    --text: #121416;
    --muted: #4E555D;
    --line: #D7DACF;
    --link: #3D5A00;
    --callout: #F0F7D9;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overflow-wrap: break-word;
}
.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 28px max(16px, env(safe-area-inset-right)) 56px max(16px, env(safe-area-inset-left));
}
.brand {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 9px;
  border-radius: 7px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
  text-decoration: none;
}
h1 { margin: 0 0 6px; font-size: 34px; line-height: 1.15; letter-spacing: -.01em; }
.meta { margin: 0 0 22px; color: var(--muted); font-size: 15px; }
h2 {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin: 40px 0 10px;
  font-size: 23px;
  line-height: 1.25;
  scroll-margin-top: 16px;
}
h2 .n {
  flex: none;
  min-width: 28px;
  padding: 1px 6px;
  border-radius: 7px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.5;
  text-align: center;
}
h3 { margin: 24px 0 4px; font-size: 18px; line-height: 1.3; }
p { margin: 10px 0; }
ul, ol { margin: 10px 0; padding-left: 22px; }
li { margin: 6px 0; }
a { color: var(--link); text-underline-offset: 2px; }
.callout {
  margin: 0 0 22px;
  padding: 14px 16px;
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  background: var(--callout);
}
.callout h2 { display: block; margin: 0 0 6px; font-size: 18px; }
.callout ul { margin: 0; padding-left: 20px; }
.toc {
  margin: 0;
  padding: 14px 16px 14px 38px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  font-size: 15.5px;
}
.toc li { margin: 4px 0; break-inside: avoid; }
@media (min-width: 600px) { .toc { columns: 2; column-gap: 32px; } }
.card {
  margin: 12px 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.card h3 { margin: 0 0 4px; }
.card p { margin: 4px 0 0; }
.card dl { margin: 8px 0 0; }
.card dt { margin-top: 8px; font-weight: 700; }
.card dd { margin: 2px 0 0; }
.table { width: 100%; margin: 12px 0; border-collapse: collapse; font-size: 15.5px; }
.table th, .table td { padding: 8px 10px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.table th { background: var(--surface); }
footer {
  margin-top: 44px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14.5px;
}
footer p { margin: 0 0 6px; }
footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.hero { padding: 40px 0 8px; }
.hero h1 { font-size: 44px; }
.lede { font-size: 20px; color: var(--muted); margin: 8px 0 22px; }
.links { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; list-style: none; }
.links a {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}