body {
    font-family: 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    color: #2c3e50;
}

header {
    margin-bottom: 2rem;
}

footer {
    margin-top: 2rem;
    text-align: center;
    color: #7f8c8d;
}