:root {
  color-scheme: light dark;
  --bg: #fbfbfd;
  --fg: #191b22;
  --muted: #565b6b;
  --line: #d9dce5;
  --accent: #1f4fd8;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111318;
    --fg: #e8eaf0;
    --muted: #a2a8b8;
    --line: #2a2f3a;
    --accent: #8ab4ff;
    --card: #171a21;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }
header.top {
  border-bottom: 1px solid var(--line);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}
header.top a.home {
  color: var(--fg);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.01em;
}
header.top nav { margin-top: 0.5rem; display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.95rem; }
header.top nav a { color: var(--muted); text-decoration: none; }
header.top nav a:hover, header.top nav a[aria-current="page"] { color: var(--accent); }
h1 { font-size: 1.9rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; letter-spacing: -0.01em; margin: 2.2rem 0 0.6rem; }
h3 { font-size: 1rem; margin: 1.6rem 0 0.4rem; }
p, li { color: var(--fg); }
.lede { color: var(--muted); font-size: 1.05rem; margin: 0 0 1.5rem; }
ul { padding-left: 1.2rem; }
li + li { margin-top: 0.35rem; }
code {
  font: 0.9em/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 620; color: var(--muted); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.1rem 1.2rem;
  margin: 1.25rem 0;
}
.meta { color: var(--muted); font-size: 0.9rem; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer a { color: var(--muted); }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }