/* Basis-Layout */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

header {
    background: #004080;
    color: white;
    padding: 20px;
    text-align: center;
}

header nav ul {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
    display: flex;
    justify-content: center;
    gap: 15px;
}

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

main {
    padding: 20px;
    max-width: 1000px;
    margin: auto;
}

section {
    margin-bottom: 40px;
}

footer {
    background: #222;
    color: #ccc;
    text-align: center;
    padding: 10px 0;
}