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

header {
    background: #003366;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

nav {
    background: #005599;
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 12px;
}

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

nav a:hover {
    text-decoration: underline;
}

.section {
    background: white;
    margin: 20px auto;
    padding: 20px;
    max-width: 900px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h2 {
    color: #003366;
}

footer {
    text-align: center;
    padding: 20px;
    background: #003366;
    color: white;
    margin-top: 40px;
}