:root {
  color-scheme: light dark;
  --text: #1a1a1a;
  --muted: #555;
  --link: #c45c00;
  --bg: #fafafa;
  --card: #fff;
  --border: #e0e0e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #f0f0f0;
    --muted: #b0b0b0;
    --link: #ff9f43;
    --bg: #121212;
    --card: #1e1e1e;
    --border: #333;
  }
}

* { box-sizing: border-box; }

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

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

h1 { font-size: 1.75rem; margin-top: 0; }

h2 { font-size: 1.15rem; margin-top: 2rem; }

.lede, .contact { color: var(--muted); }

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

nav {
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

ul { padding-left: 1.25rem; }

li { margin: 0.35rem 0; }

code {
  font-size: 0.9em;
  word-break: break-all;
}

.updated { font-size: 0.9rem; color: var(--muted); margin-top: 2.5rem; }