:root {
    color-scheme: dark light;
    --canvas: #0E1020;
    --surface: #16182C;
    --text: #F4F4FA;
    --text-soft: #B8B8D0;
    --text-muted: #7A7A95;
    --cyan: #22D3EE;
    --indigo: #6366F1;
    --violet: #A855F7;
    /* #0E1020 on #F4F4FA has a WCAG contrast ratio of 17.21:1. */
    --active-control-background: #F4F4FA;
    --active-control-text: #0E1020;
    --content-width: 46rem;
    --page-width: 72rem;
    background: var(--canvas);
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 15% 0%, rgb(99 102 241 / 18%), transparent 28rem),
        var(--canvas);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.65;
}

body::before {
    display: block;
    height: 0.3rem;
    background: linear-gradient(135deg, var(--cyan), var(--indigo), var(--violet));
    content: "";
}

a {
    color: var(--cyan);
    overflow-wrap: anywhere;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

a:hover {
    text-decoration-thickness: 0.14em;
}

:focus-visible {
    outline: 0.2rem solid var(--violet);
    outline-offset: 0.2rem;
}

.skip-link {
    position: fixed;
    z-index: 10;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.7rem 1rem;
    border-radius: 0.65rem;
    background: linear-gradient(135deg, var(--cyan), var(--indigo), var(--violet));
    color: var(--canvas);
    font-weight: 700;
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header,
.site-footer {
    width: min(calc(100% - 2rem), var(--page-width));
    margin-inline: auto;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding-block: 1.5rem;
}

.wordmark {
    margin: 0;
    background: linear-gradient(135deg, var(--cyan), var(--indigo), var(--violet));
    background-clip: text;
    color: transparent;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.16em;
}

.language-switcher {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0.3rem;
    border: 1px solid rgb(184 184 208 / 20%);
    border-radius: 0.85rem;
    background: var(--surface);
}

.language-switcher a {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
    padding: 0.45rem 0.8rem;
    border-radius: 0.6rem;
    color: var(--text-soft);
    font-weight: 650;
    text-decoration: none;
}

.language-switcher a:hover {
    color: var(--text);
}

.language-switcher a[aria-current="page"] {
    position: relative;
    background: var(--active-control-background);
    color: var(--active-control-text);
}

.language-switcher a[aria-current="page"]::after {
    position: absolute;
    right: 0.6rem;
    bottom: 0.25rem;
    left: 0.6rem;
    height: 0.15rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--cyan), var(--indigo), var(--violet));
    content: "";
}

main {
    width: min(calc(100% - 2rem), var(--content-width));
    margin-inline: auto;
    padding-block: clamp(2rem, 6vw, 5rem);
}

article {
    display: grid;
    gap: 1.25rem;
}

article + article {
    margin-top: 5rem;
    padding-top: 5rem;
    border-top: 1px solid rgb(184 184 208 / 24%);
}

.document-header {
    margin-bottom: 0.5rem;
}

h1,
h2 {
    line-height: 1.2;
    text-wrap: balance;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 8vw, 3.4rem);
    letter-spacing: -0.035em;
}

h1::after {
    display: block;
    width: 5rem;
    height: 0.3rem;
    margin-top: 1rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--cyan), var(--indigo), var(--violet));
    content: "";
}

h2 {
    margin: 0 0 0.65rem;
    font-size: 1.1rem;
}

p,
ul {
    margin-block: 0 0.75rem;
}

.document-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    margin-top: 1.25rem;
    color: var(--text-muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: 0.82rem;
}

article section {
    padding: clamp(1.1rem, 4vw, 1.6rem);
    border: 1px solid rgb(184 184 208 / 18%);
    border-radius: 1rem;
    background: var(--surface);
    box-shadow: 0 1rem 2.5rem rgb(14 16 32 / 22%);
}

article section p:last-child,
article section ul:last-child {
    margin-bottom: 0;
}

address {
    color: var(--text-soft);
    font-style: normal;
}

address strong {
    color: var(--text);
}

.link-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    padding: 0;
    list-style: none;
}

table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
}

.site-footer {
    padding-block: 1.5rem 2.5rem;
    border-top: 1px solid rgb(184 184 208 / 18%);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.site-footer p {
    margin: 0;
}

[hidden] {
    display: none !important;
}

@media (max-width: 40rem) {
    .site-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .language-switcher {
        width: 100%;
    }

    .language-switcher a {
        flex: 1 1 auto;
        justify-content: center;
    }

    main {
        padding-top: 1.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    :root {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media print {
    :root {
        color-scheme: light;
    }

    body {
        background: #FFFFFF !important;
        color: #000000 !important;
        font-size: 11pt;
    }

    body::before,
    .skip-link,
    .language-switcher {
        display: none !important;
    }

    .site-header,
    main,
    .site-footer {
        width: auto;
        margin: 0;
    }

    .site-header,
    .site-footer {
        padding-block: 1rem;
    }

    .wordmark,
    a,
    address,
    .document-meta,
    .site-footer {
        background: none;
        color: #000000 !important;
    }

    article + article {
        margin-top: 2rem;
        padding-top: 2rem;
        border-top-color: #000000;
    }

    article section {
        border-color: #000000;
        background: #FFFFFF !important;
        box-shadow: none;
        break-inside: avoid;
    }
}