body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f7f7f7;
}

header {
    background: #1f4e79;
    color: white;
    text-align: center;
    padding: 40px;
}

section {
    max-width: 900px;
    margin: 30px auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
}

h2 {
    color: #1f4e79;
}