body {
  font-family: Arial, sans-serif;
  margin: 40px;
  background: #0f172a;
  color: #e2e8f0;
}

header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
}

a {
  color: #38bdf8;
  margin-right: 15px;
  text-decoration: none;
}

section {
  margin-bottom: 30px;
}