body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f4f7fa;
  color: #333;
  line-height: 1.6;
}

header {
  background: #003366;
  color: #fff;
  padding: 2rem;
  text-align: center;
}

header h1 {
  margin-bottom: 0.5rem;
}

nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 2rem;
}

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

main {
  padding: 2rem;
}

section {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: #fff;
  border-left: 5px solid #003366;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

footer {
  background: #003366;
  color: #fff;
  text-align: center;
  padding: 1rem;
}