body {
  font-family: 'Open Sans', sans-serif;
  color: #333;
  background-color: #f9f9f9;
}

a {
  color: #0056b3;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header, footer {
  background-color: #001f4d;
  color: white;
}

.sidebar {
  background-color: #e6f0ff;
  padding: 15px;
  border-radius: 5px;
}