:root {
  color-scheme: light dark;
  --brand: #1f9e1f;
  --bg: #f6f8ec;
  --fg: #1a2417;
  --muted: #5c6b57;
  --border: #d8e0cf;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 1.25rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

header .accent { color: var(--brand); }

nav {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

nav a { color: var(--muted); }

h1 { font-size: 1.6rem; margin-bottom: 0.25rem; }
h2 { font-size: 1.15rem; margin-top: 2rem; }

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

.muted { color: var(--muted); font-size: 0.9rem; }

.updated {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 1.5rem 0;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}