:root {
  --bg: #ffffff;
  --fg: #1f2937;
  --muted: #6b7280;
  --accent: #0369a1;
  --border: #e2e8f0;
  --card: #f9fafb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1f1f1f;
    --fg: #f3f4f6;
    --muted: #9ca3af;
    --accent: #22d3ee;
    --border: #0e3c46;
    --card: #252525;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 2rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}

main { max-width: 42rem; margin: 0 auto; }

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

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

p { margin: 0 0 1rem; }

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

.lead { color: var(--muted); margin-bottom: 2rem; }

.address {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  margin: 0 0 1rem;
  white-space: pre-line;
}

ul { padding-left: 1.25rem; margin: 0 0 1rem; }
li { margin-bottom: 0.4rem; }

.nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.brand { font-weight: 700; margin-right: auto; text-decoration: none; color: var(--fg); }

footer {
  margin-top: 3.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}