body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  margin: 0;
  background: #0b1220;
  color: #e6eef6;
  line-height: 1.6;
}

header {
  background: #081223;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

header h1 {
  margin: 0;
}

nav a {
  color: #9fb3d8;
  text-decoration: none;
  margin-right: 16px;
}

nav a:hover {
  color: #8feda4;
}

main {
  padding: 24px;
  max-width: 900px;
  margin: 0 auto;
}

section {
  margin-bottom: 32px;
}

pre {
  background: #05101a;
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
}

footer {
  text-align: center;
  padding: 16px;
  background: #081223;
}