body {
    max-width: 680px;
    margin: 50px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #222;
    background-color: #fff;
}

h1 {
    font-size: 28px;
    margin-bottom: 25px;
    color: #000;
}

h2 {
    font-size: 20px;
    margin-top: 35px;
    margin-bottom: 15px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 5px;
    color: #000;
}

p {
    margin-bottom: 16px;
}

ul {
    padding-left: 20px;
    margin-bottom: 25px;
}

li {
    margin-bottom: 15px;
}

a {
    color: #0044bb;
    text-decoration: underline;
}

a:hover {
    color: #002266;
}

footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    font-size: 14px;
    color: #666;
}