:root {
  --bg: #fdfdfd;
  --text: #1a1a1a;
  --link: #005bb5;
  --meta: #666;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #e0e0e0;
    --link: #66b2ff;
    --meta: #999;
  }
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  max-width: 700px;
  margin: 40px auto;
  padding: 0 20px;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

time {
  color: var(--meta);
  font-size: 0.9em;
}

ul {
  list-style: none;
  padding: 0;
}