:root {
  color-scheme: light;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #2b2b2b;
  --border: #e5e5e5;
}

* { box-sizing: border-box; }

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

header {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
}

header nav {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .logo {
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--fg);
}

header .links a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.5rem;
  font-size: 0.95rem;
}

header .links a:hover,
header .links a[aria-current="page"] {
  color: var(--fg);
}

main {
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

p {
  color: var(--fg);
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
}

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

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