:root {
  --ink: #16161f;
  --muted: #5a5f6b;
  --primary: #5b47e8;
  --bg: #ffffff;
  --soft: #f5f4fb;
  --border: #ececf2;
  --maxw: 760px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}
header.site {
  background: var(--soft);
  border-bottom: 1px solid var(--border);
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
header.site .wrap { padding-top: 26px; padding-bottom: 26px; }
.brand {
  display: inline-flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--ink);
}
.brand .mark {
  width: 38px; height: 38px; border-radius: 10px; background: #ede9fd;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 20px;
}
.brand b { font-size: 19px; font-weight: 600; }
nav.top { margin-top: 14px; }
nav.top a {
  color: var(--primary); text-decoration: none; font-size: 15px;
  margin-right: 18px;
}
nav.top a:hover { text-decoration: underline; }
main { padding: 30px 0 70px; }
h1 { font-size: 28px; line-height: 1.25; margin: 6px 0 4px; }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
h2 {
  font-size: 21px; margin: 38px 0 10px; padding-top: 8px;
}
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: #25262e; }
ul { padding-left: 22px; }
li { margin: 5px 0; }
a { color: var(--primary); }
.card {
  background: var(--soft); border: 1px solid var(--border);
  border-radius: 12px; padding: 16px 18px; margin: 18px 0;
}
.card p { margin: 6px 0; }
.muted { color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--border); margin: 36px 0; }
footer.site {
  border-top: 1px solid var(--border); padding: 26px 0 60px;
  color: var(--muted); font-size: 14px;
}
footer.site a { color: var(--muted); margin-right: 16px; }
.home-cards { display: grid; gap: 14px; margin-top: 26px; }
.home-cards a {
  display: block; text-decoration: none; color: var(--ink);
  border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px;
}
.home-cards a:hover { border-color: var(--primary); }
.home-cards b { font-size: 18px; }
.home-cards span { display: block; color: var(--muted); font-size: 15px; margin-top: 4px; }