:root {
  --bg: #fbfaf7;
  --fg: #1d1d1b;
  --muted: #5c5a55;
  --rule: #e2dfd8;
  --accent: #9e1b32;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615;
    --fg: #ecebe7;
    --muted: #a3a19b;
    --rule: #33322f;
    --accent: #e0607a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 0.25rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
p, li { margin: 0 0 0.75rem; }
ul { padding-left: 1.25rem; }
a { color: var(--accent); }
code { font-size: 0.9em; }

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

nav, footer {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a { margin-right: 1rem; }