:root {
  --background: #FAF8F5;
  --surface: #FFFFFF;
  --ink: #242529;
  --muted: #76777D;
  --line: #E7E7E8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #17181B;
    --surface: #222327;
    --ink: #F2F1EE;
    --muted: #9A9BA1;
    --line: #33343A;
  }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--background);
  color: var(--ink);
  font-family: -apple-system, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 24px 20px 64px; }
header.site {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; padding: 8px 0 24px;
  border-bottom: 1px solid var(--line); margin-bottom: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .mark { width: 26px; height: 26px; fill: var(--ink); }
.brand strong { font-size: 20px; font-weight: 700; letter-spacing: -0.4px; }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: 15px; }
nav a:hover, nav a[aria-current="page"] { color: var(--ink); }
h1 { font-size: 34px; line-height: 1.15; letter-spacing: -0.8px; margin-bottom: 6px; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
h2 { font-size: 22px; letter-spacing: -0.4px; margin: 32px 0 10px; }
h3 { font-size: 17px; margin: 22px 0 6px; }
p { margin: 10px 0; }
ul { padding-left: 22px; margin: 10px 0; }
li { margin: 6px 0; }
a { color: var(--ink); }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.92em; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; }
table { border-collapse: collapse; margin: 12px 0; width: 100%; }
th, td { border: 1px solid var(--line); padding: 8px 14px; text-align: left; vertical-align: top; }
th { background: var(--surface); }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 20px; padding: 20px 22px; margin: 18px 0;
}
.btn {
  display: inline-block; background: var(--ink); color: var(--background) !important;
  text-decoration: none; padding: 12px 22px; border-radius: 999px;
  font-weight: 600; margin-top: 8px;
}
footer.site {
  border-top: 1px solid var(--line); margin-top: 48px; padding-top: 20px;
  color: var(--muted); font-size: 14px;
}
footer.site a { color: var(--muted); }
@media (max-width: 420px) {
  nav { width: 100%; display: flex; justify-content: space-between; }
  nav a { margin-left: 0; font-size: 14px; }
}