body {
  font-family: Arial, sans-serif;
  background: #0b0f1a;
  color: #d6e0ff;
  margin: 0;
  padding: 0;
}

header {
  background: #121a2b;
  padding: 20px;
  border-bottom: 1px solid #2a3a5f;
}

h1 {
  margin: 0;
}

main {
  padding: 20px;
}

section {
  margin-bottom: 20px;
}

footer {
  padding: 10px;
  text-align: center;
  font-size: 12px;
  color: #8899cc;
}