:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #141a2a;
  --muted: #4d566b;
  --border: #d9dde6;
  --accent: #5EEAD4;
  --accent-ink: #0b6b5f;
  --on-accent: #0E1320;
  --code-bg: #eceff4;
  --measure: 68ch;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1320;
    --surface: #151c2e;
    --text: #e8ecf5;
    --muted: #a3adc2;
    --border: #28324a;
    --accent-ink: #5EEAD4;
    --code-bg: #1b2338;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1.0625rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent-ink); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--surface); padding: 0.5rem 0.75rem; z-index: 10; }
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1rem; }
header.site { border-bottom: 1px solid var(--border); }
header.site .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.25rem 1.25rem; padding-top: 0.75rem; padding-bottom: 0.75rem; }
.brand { font-weight: 700; font-size: 1.2rem; color: var(--text); text-decoration: none; letter-spacing: 0.01em; }
.brand span { color: var(--accent-ink); }
nav ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.1rem; list-style: none; margin: 0; padding: 0; }
nav a { color: var(--muted); text-decoration: none; padding: 0.25rem 0; display: inline-block; }
nav a:hover, nav a[aria-current] { color: var(--text); text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; }
main { padding: 2rem 0 3rem; }
main .wrap > * { max-width: var(--measure); }
h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: 1.9rem; margin: 0 0 0.75rem; }
h2 { font-size: 1.4rem; margin: 2.25rem 0 0.5rem; }
h3 { font-size: 1.15rem; margin: 1.75rem 0 0.25rem; }
p, ul, ol, blockquote, pre { margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; }
blockquote { border-left: 4px solid var(--accent); margin-left: 0; padding: 0.1rem 0 0.1rem 1rem; color: var(--muted); }
code { background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; font: 0.92em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
pre { background: var(--code-bg); padding: 0.85rem 1rem; border-radius: 8px; overflow-x: auto; }
pre code { background: none; padding: 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }
.meta { color: var(--muted); font-size: 0.95rem; margin: 0 0 1.5rem; }
.lede { font-size: 1.2rem; color: var(--muted); }
a.button {
  display: inline-block; background: var(--accent); color: var(--on-accent);
  font-weight: 650; text-decoration: none; padding: 0.7rem 1.25rem; border-radius: 10px; margin: 0.25rem 0;
}
a.button:hover { filter: brightness(0.93); }
.page-home h1 { font-size: 2.2rem; }
.related { margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.related h2 { margin-top: 0; font-size: 1.15rem; }
.guide-list { list-style: none; padding: 0; }
.guide-list li { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 0.8rem 1rem; }
.guide-list a { font-weight: 650; }
.guide-list p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.97rem; }
footer.site { border-top: 1px solid var(--border); color: var(--muted); font-size: 0.93rem; padding: 1.5rem 0 2.5rem; }
footer.site ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem 1.1rem; padding: 0; margin: 0 0 0.75rem; }
footer.site a { color: var(--muted); }
footer.site p { margin: 0 0 0.35rem; }
@media (min-width: 40rem) {
  h1 { font-size: 2.3rem; }
  .page-home h1 { font-size: 2.8rem; }
  main { padding-top: 3rem; }
}