* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.875rem;
    color: #1a1a1a;
    background: #fafafa;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

main {
    max-width: 560px;
    padding: 48px 16px;
    margin: 0;
}

@media (min-width: 540px) {
    main {
        margin-left: 16px;
    }
}

h1 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: #000;
}

.intro {
    color: #555;
    margin-bottom: 40px;
}

h2 {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: #888;
    margin-bottom: 8px;
}

section {
    margin-bottom: 32px;
}

p {
    color: #333;
}

ul {
    list-style: none;
}

li {
    margin-bottom: 8px;
    color: #333;
}

@media (max-width: 480px) {
    body {
        font-size: 0.8125rem;
    }

    main {
        padding: 32px 16px;
    }

    .intro {
        margin-bottom: 32px;
    }

    section {
        margin-bottom: 24px;
    }
}

a {
    color: #1a1a1a;
    text-decoration: underline;
    text-underline-offset: 2px;
}

a:hover {
    color: #666;
}

@media (prefers-color-scheme: dark) {
    body {
        color: #e0e0e0;
        background: #111;
    }

    h1 {
        color: #fff;
    }

    .intro {
        color: #999;
    }

    h2 {
        color: #666;
    }

    p, li {
        color: #bbb;
    }

    a {
        color: #e0e0e0;
    }

    a:hover {
        color: #888;
    }
}