body {
  margin: 0;
  background: #fafafa;
  color: #1a1a1a;
}

a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
}

@media (prefers-color-scheme: dark) {
  body { background: #111; color: #f0f0f0; }
  a { color: #6ab0ff; }
}