:root {
    --bg: #fbfbfd;
    --surface: #fff;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --line: rgba(0, 0, 0, .08);
    --accent: #0a6cff;
    --glass: rgba(251, 251, 253, .72)
}

@media (prefers-color-scheme:dark) {
    :root {
        --bg: #000;
        --surface: #1c1c1e;
        --text: #f5f5f7;
        --muted: #a1a1a6;
        --line: rgba(255, 255, 255, .12);
        --accent: #2f81ff;
        --glass: rgba(0, 0, 0, .6)
    }
}

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

body {
    background: var(--bg);
    color: var(--text);
    font: 100%/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased
}

nav {
    position: sticky;
    top: 0;
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--line)
}

nav div {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    letter-spacing: -.01em;
    color: inherit;
    text-decoration: none
}

.brand img {
    width: 28px;
    height: 28px;
    border-radius: 7px
}

nav .back {
    color: var(--muted);
    font-size: .875rem;
    text-decoration: none
}

nav .back:hover {
    color: var(--text)
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 24px 0
}

h1 {
    font-size: clamp(2.2rem, 6vw, 3.25rem);
    letter-spacing: -.03em;
    line-height: 1.1
}

.updated {
    color: var(--muted);
    font-size: .875rem;
    margin-top: 10px
}

h2 {
    font-size: 1.3125rem;
    letter-spacing: -.015em;
    margin: 40px 0 8px
}

p,
li {
    color: var(--muted);
    font-size: 1.0312rem
}

p {
    margin-top: 8px
}

ul {
    padding-left: 1.25rem;
    margin-top: 8px
}

li {
    margin-top: 4px
}

a {
    color: var(--accent)
}

strong {
    color: var(--text);
    font-weight: 600
}

footer {
    max-width: 720px;
    margin: 96px auto 0;
    padding: 24px 24px 40px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    font-size: .8125rem;
    color: var(--muted)
}

footer a {
    color: inherit
}
.credit-icon { display: inline-block; vertical-align: -2px; }