body {
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

h1 {
    font-size: 2.2em;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

h2 {
    font-size: 1.5em;
    margin-top: 30px;
    margin-bottom: 15px;
}

p,
li {
    font-size: 1em;
    color: #555;
    margin-bottom: 10px;
}

ul {
    list-style-type: disc;
    margin: 10px 0;
    padding-left: 25px;
}

.last-updated {
    font-style: italic;
    color: #777;
    margin-bottom: 30px;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    body {
        padding: 15px;
    }

    h1 {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.3em;
    }
}

footer {
    border-top: 2px solid gray;
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
}