body {
  font-family: 'Open Sans', sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f7fa;
  color: #333;
}

header {
  background: #0a3d62;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
}

.logo {
  height: 50px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

section {
  padding: 40px;
}

h1, h2 {
  color: #0a3d62;
}

footer {
  background: #0a3d62;
  color: white;
  text-align: center;
  padding: 15px;
}