body {
    font-family: system-ui, sans-serif;
    line-height: 1.5;
    margin: 2rem auto;
    max-width: 900px;
    padding: 0 1rem;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin: 6px 0;
}

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

a:hover {
    text-decoration: underline;
}

small {
    color: #555;
    margin-left: 8px;
}