:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --accent: #2563eb;
  --border: #e5e5e5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e8e8e8;
    --muted: #9aa0a6;
    --accent: #6ea8fe;
    --border: #2a2d31;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.site-header .brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--fg);
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
}

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

main,
footer {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem;
}

footer {
  color: var(--muted);
  border-top: 1px solid var(--border);
}

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

code {
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}