:root {
  --accent: #0a5cff;
  --ink: #111418;
  --muted: #5b6470;
  --bg: #ffffff;
  --card: #f4f6f8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2f4f7;
    --muted: #9aa4b2;
    --bg: #0d1117;
    --card: #161c24;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
main {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}
header.site {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
}
header.site .mark {
  display: flex;
  gap: 5px;
}
header.site .mark span {
  width: 20px;
  height: 28px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 25%, transparent);
}
header.site .mark span:last-child {
  background: var(--accent);
  position: relative;
}
header.site strong { font-size: 20px; letter-spacing: -0.01em; }
h1 { font-size: 34px; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 36px 0 8px; }
p.lede { font-size: 19px; color: var(--muted); margin-top: 0; }
p, li { color: var(--ink); }
.muted { color: var(--muted); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.card {
  background: var(--card);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 24px 0;
}
footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid color-mix(in srgb, var(--muted) 25%, transparent);
  font-size: 14px;
  color: var(--muted);
}
nav.legal { display: flex; gap: 18px; margin-bottom: 8px; }