html {
    font-family: system-ui, sans-serif;
    background: #f5f5f5;
    color: #222;
}

body {
    margin: 0;
}

main {
    max-width: 720px;
    margin: 80px auto;
    padding: 32px;
    background: white;
    border-radius: 12px;
}

a {
    color: inherit;
}