body {
    font-family: sans-serif;
    font-size: 20px;
    line-height: 1.7;
    color: #111;
    background: #f9f9f7;
    padding: 0 30%;
    margin: 0;
}



header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

main {
    max-width: 640px;
    margin: 3rem auto;
    padding: 0 2rem;
}