:root {
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --line: #e6e6e6;
  --accent: #2f7d4f;
  --bg: #ffffff;
  --soft: #f7f7f5;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }
header.site {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 700; font-size: 18px; text-decoration: none; color: var(--ink); }
nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--muted);
  font-size: 15px;
}
nav a:hover, nav a.active { color: var(--ink); }
main { padding: 56px 0 72px; }
h1 { font-size: 34px; line-height: 1.25; margin: 0 0 16px; letter-spacing: -0.01em; }
h2 { font-size: 22px; margin: 40px 0 12px; }
p { margin: 0 0 16px; color: var(--ink); }
p.lede { font-size: 19px; color: var(--muted); }
.muted { color: var(--muted); }
.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
  background: var(--soft);
}
.card h2, .card h3 { margin-top: 0; }
.btn {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 15px;
  margin-top: 8px;
}
.btn:hover { opacity: 0.85; }
ul.tight { padding-left: 20px; }
ul.tight li { margin-bottom: 8px; }
footer.site {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  font-size: 14px;
  color: var(--muted);
}
footer.site a { color: var(--muted); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .grid2 { grid-template-columns: 1fr; } h1 { font-size: 28px; } }
.fact { margin-bottom: 6px; }
.fact span { color: var(--muted); }