body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
    color: #222;
    margin: 0;
    padding: 0;
}
header {
    background-color: #1c1c3c;
    color: white;
    padding: 2em;
    text-align: center;
}
button {
    background-color: #ff9800;
    color: white;
    border: none;
    padding: 1em;
    font-size: 1em;
    cursor: pointer;
    margin-top: 1em;
}
section {
    padding: 2em;
    background-color: white;
    margin: 1em;
    border-radius: 10px;
}
footer {
    text-align: center;
    padding: 1em;
    font-size: 0.9em;
    background-color: #eee;
}