body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

a {
    color: #0366d6;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

header, footer {
    margin: 20px 0;
    padding: 20px 0;
    border-bottom: 1px solid #eaecef;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 20px;
}

article {
    margin-bottom: 40px;
}

time {
    color: #6a737d;
    font-size: 0.9em;
}