body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #fafafa;
    color: #222;
    line-height: 1.7;
    margin: 0;
}

main {
    max-width: 800px;
    margin: 60px auto;
    padding: 0 24px;
}

nav {
    margin: 1rem 0 2rem 0;
}

nav a {
    margin-right: 1rem;
    color: #333;
    text-decoration: none;
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

h2 {
    margin-top: 2.5rem;
    border-bottom: 1px solid #ddd;
    padding-bottom: 0.25rem;
}

ul {
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

p {
    max-width: 70ch;
}