:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #e8590c;
  --rule: #e5e5e5;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #16181c; --fg: #e8e8e8; --muted: #9a9a9a; --rule: #2c2f35; }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 2.5rem 1.25rem 4rem;
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 .25rem; }
h2 { font-size: 1.2rem; margin: 2.2rem 0 .6rem; }
h3 { font-size: 1rem; margin: 1.5rem 0 .4rem; }
p, li { margin: .5rem 0; }
ul { padding-left: 1.3rem; }
a { color: var(--accent); }
.meta { color: var(--muted); font-size: .9rem; margin-bottom: 2rem; }
.footer { margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: .9rem; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: .45rem .6rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 600; }
.toc { background: color-mix(in srgb, var(--fg) 4%, var(--bg)); border-radius: 10px; padding: 1rem 1.25rem; font-size: .95rem; }
.toc ul { margin: 0; }