body {
  font-family: system-ui, sans-serif;
  max-width: 600px;
  margin: 40px auto;
  line-height: 1.6;
  padding: 0 16px;
  color: #d8d8d8;
  background-color: #131316;
}

header {
  margin-bottom: 2rem;
  font-size: 50px;
  font-weight: bold;
  text-align: center;
  line-height: 1.2;      /* tighter vertical spacing */
  letter-spacing: 0.5px; /* reduce wide gaps */
  word-break: break-word;
}

a {
  color: #0b63ce;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

pre {
  background: #f5f5f5;
  padding: 12px;
  overflow-x: auto;
}