* { box-sizing: border-box; }
body {
  font-family: "Courier New", Courier, monospace;
  font-size: 15px;
  max-width: 36rem;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  color: #c9d1d9;
  background: #0d1117;
  min-height: 100vh;
}
a {
  display: block;
  color: #c9d1d9;
  text-decoration: none;
  margin-bottom: 0.5rem;
}
a:hover { color: #58a6ff; }