:root {
  --ink: #17181c;
  --muted: #5b5f6a;
  --line: #e4e5e9;
  --bg: #fbfbfa;
  --accent: #2f5c4f;
  --max: 40rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header.site {
  border-bottom: 1px solid var(--line);
}

header.site .wrap {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

nav.site a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  margin-left: 1.25rem;
}

nav.site a:first-child { margin-left: 0; }

nav.site a:hover { color: var(--ink); }

h1 {
  font-size: 1.7rem;
  margin: 0 0 0.5rem;
  line-height: 1.25;
}

h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.6rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

h2:first-of-type { border-top: none; padding-top: 0; }

p { margin: 0.75rem 0; }

a { color: var(--accent); }

.lede {
  color: var(--muted);
  font-size: 1.05rem;
}

.meta {
  color: var(--muted);
  font-size: 0.85rem;
}

ul { padding-left: 1.2rem; }
li { margin: 0.35rem 0; }

footer.site {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
}

footer.site .wrap {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  margin: 1.25rem 0;
  background: #fff;
}

@media (max-width: 480px) {
  h1 { font-size: 1.4rem; }
  nav.site a { margin-left: 0.85rem; font-size: 0.85rem; }
}