body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f7f7f7;
    color: #333;
}

header {
    background: #111;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

section {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

h2 {
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
}

footer {
    text-align: center;
    padding: 20px;
    background: #eee;
    font-size: 14px;
}