:root {
  color-scheme: dark;
  --bg: #0b1220;
  --fg: #e8eefc;
  --muted: #a9b7d6;
  --accent: #9fd0ff;
  --line: #1e2b45;
}

* { box-sizing: border-box; }

body {
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  margin: 0;
  padding: 48px 24px 96px;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

main { max-width: 44rem; margin: 0 auto; }

h1 { margin: 0 0 4px; font-size: 2rem; letter-spacing: -0.02em; }
h2 { margin: 40px 0 8px; font-size: 1.15rem; letter-spacing: -0.01em; }
h3 { margin: 24px 0 4px; font-size: 1rem; color: var(--accent); }

p, li { color: var(--muted); }
ul { padding-left: 20px; }
li { margin: 4px 0; }

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

code {
  color: var(--accent);
  font-size: 0.9em;
  word-break: break-all;
}

.lead { font-size: 1.05rem; }

.meta {
  margin-top: 4px;
  font-size: 0.85rem;
  color: #6f7f9f;
}

nav {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

nav a { margin-right: 16px; }