body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
  color: #333;
}

header {
  background-color: #011F3F;
  color: #FEF2BF;
  padding: 2rem;
  text-align: center;
}

nav ul {
  display: flex;
  justify-content: center;
  list-style-type: none;
  padding: 0;
  background-color: #333;
}

nav ul li {
  margin: 0 1rem;
}

nav ul li a {
  color: white;
  text-decoration: none;
  padding: 1rem;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
  color: #1d72b8;
}

section {
  padding: 2rem;
  max-width: 800px;
  margin: auto;
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #011F3F;
  color: #FEF2BF;
}