:root {
    color-scheme: light dark;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --bg: #ffffff;
    --rule: #d2d2d7;
    --link: #0066cc;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #f5f5f7;
        --muted: #a1a1a6;
        --bg: #1c1c1e;
        --rule: #3a3a3c;
        --link: #4da3ff;
    }
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial,
        sans-serif;
    overflow-wrap: break-word;
}

main {
    max-width: 44rem;
    margin: 0 auto;
    padding: 1.5rem 16px 3rem;
}

nav.lang {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--muted);
    border-bottom: 1px solid var(--rule);
    padding-bottom: 0.75rem;
    margin-bottom: 1.5rem;
}

a {
    color: var(--link);
}

h1 {
    font-size: 1.9rem;
    line-height: 1.2;
    margin: 0 0 1rem;
}

h2 {
    font-size: 1.3rem;
    line-height: 1.3;
    margin: 2.25rem 0 0.75rem;
}

h3 {
    font-size: 1.05rem;
    margin: 1.5rem 0 0.5rem;
}

ul {
    padding-left: 1.25rem;
}

li {
    margin: 0.35rem 0;
}

ul.index {
    columns: 2 16rem;
}

.seal {
    margin-top: 3rem;
    font-size: 0.85rem;
    color: var(--muted);
}

.docs {
    list-style: none;
    padding: 0;
}

.docs li {
    margin: 0.6rem 0;
}