:root {
  --bg: #ffffff;
  --fg: #1b1f24;
  --muted: #5b6570;
  --rule: #e3e7ea;
  --accent: #1f6feb;
  --code-bg: #f5f7f9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --fg: #dfe3e6;
    --muted: #929ba3;
    --rule: #262b30;
    --accent: #6ea8fe;
    --code-bg: #1c2024;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.25rem; }
header { border-bottom: 1px solid var(--rule); }
header .wrap { display: flex; align-items: baseline; gap: 1.5rem; padding-top: 1.1rem; padding-bottom: 1.1rem; }
.brand { font-weight: 700; letter-spacing: -0.01em; text-decoration: none; color: var(--fg); }
nav { margin-left: auto; display: flex; gap: 1.1rem; font-size: 0.9rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }
main { padding: 2.5rem 0 3rem; }
h1 { font-size: 1.85rem; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 0.6rem; }
h2 { font-size: 1.15rem; font-weight: 700; margin: 2.2rem 0 0.6rem; }
h3 { font-size: 1rem; font-weight: 700; margin: 1.6rem 0 0.4rem; }
p, li { color: var(--fg); }
.lead { color: var(--muted); font-size: 1.05rem; margin-bottom: 2rem; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.875rem; }
code { background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 3px; }
pre { background: var(--code-bg); border: 1px solid var(--rule); border-radius: 6px; padding: 0.9rem 1rem; overflow-x: auto; }
pre code { background: none; padding: 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; margin: 1rem 0; }
th, td { text-align: left; padding: 0.5rem 0.75rem 0.5rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
a { color: var(--accent); }
footer { border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.85rem; }
footer .wrap { padding-top: 1.4rem; padding-bottom: 2.5rem; }