/*
 * The Ghost Assembly docs template, shared by every quick* docs site.
 *
 * Hand-written, no framework, no build step and no JavaScript: the theme
 * follows the reader's color scheme and navigation is plain anchors. The same
 * stylesheet serves every quick* docs site; only index.html and
 * docs/project.css, linked after this file, change.
 *
 * Rules, from the Ghost Assembly org site:
 *   - Brand stops are sampled from the logo: cyan, blue, magenta.
 *   - The spectrum is decoration only (halo, rules, button ring, card tops).
 *     Never under text.
 *   - .night (top bar, hero, code, footer) keeps the dark tokens in both
 *     schemes: the emblem, the product drawing and code read on black.
 *   - Orbitron for display, the system stack for reading, monospace for code.
 *   - Motion only under prefers-reduced-motion: no-preference.
 */

@font-face {
    font-family: 'Orbitron';
    font-style: normal;
    font-weight: 500 800;
    font-display: swap;
    src: url('assets/fonts/orbitron-latin.woff2') format('woff2');
}

:root {
    --cyan: #00a8fc;
    --blue: #2f5afc;
    --magenta: #d601fc;
    --spectrum: linear-gradient(135deg, var(--cyan), var(--blue) 55%, var(--magenta));
    --spectrum-x: linear-gradient(90deg, var(--cyan), var(--blue) 55%, var(--magenta));
    --spectrum-y: linear-gradient(180deg, var(--cyan), var(--blue) 55%, var(--magenta));

    --paper: #03030a;
    --raised: #0a0b16;
    --sunken: #06060e;
    --ink: #eceef2;
    --mist: #9aa3b5;
    --line: #25263d;
    --link: #35b6ff;
    --note: #0b1330;

    --display: 'Orbitron', system-ui, sans-serif;
    --sans: system-ui, -apple-system, 'Segoe UI', Cantarell, 'Noto Sans', sans-serif;
    --mono:
        ui-monospace, 'JetBrains Mono', 'Cascadia Mono', 'Source Code Pro', Menlo,
        monospace;

    --radius: 14px;
    /* Side padding: 96px on a 1440px screen, centering a 1248px column beyond
     * it, and never less than 24px. */
    --gutter: max(24px, min(96px, 6.5vw), calc((100vw - 1248px) / 2));

    color-scheme: dark;
}

@media (prefers-color-scheme: light) {
    :root {
        --paper: #f3f4f8;
        --raised: #ffffff;
        --sunken: #e9ebf2;
        --ink: #12131c;
        --mist: #4a5063;
        --line: #d4d7e3;
        --link: #2446d6;
        --note: #e6ebff;

        color-scheme: light;
    }
}

.night {
    --paper: #03030a;
    --raised: #0a0b16;
    --sunken: #06060e;
    --ink: #eceef2;
    --mist: #9aa3b5;
    --line: #25263d;
    --link: #35b6ff;

    background: var(--paper);
    color: var(--ink);
    color-scheme: dark;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--link);
    text-underline-offset: 0.2em;
}

a:hover {
    text-decoration-thickness: 2px;
}

:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 3px;
    border-radius: 4px;
}

svg {
    flex: none;
}

/* Keyboard users get to skip the header. Visible only when focused. */
.skip {
    position: absolute;
    inset-inline-start: -9999px;
    inset-block-start: 0;
    z-index: 10;
    padding: 0.6rem 1rem;
    background: var(--ink);
    color: var(--paper);
}

.skip:focus {
    inset-inline-start: 0;
}

/* ---- Top bar ------------------------------------------------------------ */

.bar {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 64px;
    padding-inline: max(24px, var(--gutter) - 48px);
    border-block-end: 1px solid var(--line);
}

.crumb {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    color: var(--ink);
    text-decoration: none;
}

.crumb img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.crumb .org {
    font-family: var(--display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--mist);
}

.crumb .sep {
    color: var(--mist);
}

.crumb .product {
    font-family: var(--display);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.bar nav {
    margin-inline-start: auto;
}

.bar ul {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.bar nav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 44px;
    padding-inline: 14px;
    border-radius: 999px;
    color: var(--mist);
    font-size: 15px;
    text-decoration: none;
}

.bar nav a:hover,
.bar nav a[aria-current] {
    color: var(--ink);
    background: var(--raised);
}

.version {
    padding: 4px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--mist);
    font-family: var(--mono);
    font-size: 12px;
}

/* ---- Hero --------------------------------------------------------------- */

.hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 500px;
    align-items: center;
    gap: 72px;
    padding: 88px var(--gutter) 104px;
    overflow: hidden;
}

.halo {
    position: absolute;
    inset-block-start: -120px;
    inset-inline-end: -160px;
    width: 940px;
    height: 820px;
    pointer-events: none;
    background:
        radial-gradient(closest-side at 38% 52%, rgb(0 168 252 / 0.3), transparent),
        radial-gradient(closest-side at 66% 44%, rgb(214 1 252 / 0.26), transparent);
}

@media (prefers-reduced-motion: no-preference) {
    .halo {
        animation: breathe 9s ease-in-out infinite alternate;
    }
}

@keyframes breathe {
    from {
        opacity: 0.7;
        transform: scale(1);
    }
    to {
        opacity: 1;
        transform: scale(1.06);
    }
}

.hero > :not(.halo) {
    position: relative;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 22px;
    color: var(--mist);
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: '';
    width: 32px;
    height: 2px;
    border-radius: 2px;
    background: var(--spectrum-x);
}

.hero h1 {
    margin: 0;
    font-family: var(--display);
    font-size: 84px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0.01em;
}

.tagline {
    max-width: 24ch;
    margin: 28px 0 0;
    font-size: 26px;
    line-height: 1.3;
}

.lede {
    max-width: 52ch;
    margin: 20px 0 0;
    color: var(--mist);
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

.chip {
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--raised);
    color: var(--mist);
    font-family: var(--mono);
    font-size: 13px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: 32px 0 0;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 52px;
    padding-inline: 26px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--paper);
    color: var(--ink);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
}

.button:hover {
    border-color: var(--mist);
}

/* The ring is the spectrum; the label sits on paper, never on the gradient. */
.button.primary {
    border: 2px solid transparent;
    background:
        linear-gradient(var(--paper), var(--paper)) padding-box,
        var(--spectrum) border-box;
    box-shadow: 0 0 32px rgb(47 90 252 / 0.35);
}

.button.primary:hover {
    box-shadow:
        0 0 40px rgb(47 90 252 / 0.5),
        0 0 12px rgb(214 1 252 / 0.3);
}

/* ---- The product drawing ------------------------------------------------ */

/* The product in GNOME's own style. The shared pieces are here; each project
 * draws its own in docs/project.css, or puts a screenshot in its place.
 * Colors are GNOME's, not the theme's. */

.shot {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
    width: 100%;
    margin: 0;
    color: #ffffff;
    font-family: Cantarell, 'Adwaita Sans', var(--sans);
}

.gtop {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    height: 38px;
    padding-inline: 10px;
    border: 1px solid #1d1e2c;
    border-radius: 12px;
    background: #000000;
    font-size: 13.5px;
    font-weight: 700;
    white-space: nowrap;
}

.gtop .ws {
    display: flex;
    gap: 5px;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: #2a2a2e;
}

.gtop .ws i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #8a8a90;
}

.gtop .ws i:first-child {
    width: 22px;
    border-radius: 4px;
    background: #ffffff;
}

.gtop .clock {
    flex: 1;
    text-align: center;
}

.gtop .qm,
.gtop .sys {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 28px;
    padding-inline: 10px;
    border-radius: 999px;
    background: #2a2a2e;
}

.gtop .qm {
    min-width: 0;
    overflow: hidden;
    box-shadow:
        0 0 0 1.5px var(--cyan),
        0 0 18px rgb(0 168 252 / 0.55);
}

/* As the extension does: a long label ends in an ellipsis, never a hard cut. */
.gtop .qm-t {
    overflow: hidden;
    text-overflow: ellipsis;
}

.qs {
    width: min(100%, 420px);
    padding: 14px;
    border-radius: 28px;
    background: #2b2b30;
    box-shadow:
        0 24px 64px rgb(0 0 0 / 0.6),
        0 0 0 1px #3a3a42;
}

.qs-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.tile {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    height: 60px;
    padding-inline: 16px 6px;
    border-radius: 999px;
    background: #3c3c42;
}

.tile.on {
    background: #1c71d8;
}

.tile .t {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    line-height: 1.25;
}

.tile b,
.tile .t span {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.tile b {
    font-size: 14px;
}

.tile .t span {
    color: #dcdcdf;
    font-size: 12.5px;
}

/* Full white on GNOME's blue: dimmed, it falls below 4.5:1. */
.tile.on .t span {
    color: #ffffff;
}

.tile .more {
    display: grid;
    place-items: center;
    width: 36px;
    height: 48px;
    border-inline-start: 1px solid rgb(255 255 255 / 0.25);
}

.qs-menu {
    margin-block-start: 12px;
    padding: 14px 12px 8px;
    border-radius: 22px;
    background: #38383e;
}

.qs-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 6px 12px;
}

.qs-head .badge {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #1c71d8;
}

.qs-head b {
    display: block;
    font-size: 15px;
}

.qs-head span span {
    color: #d0d0d4;
    font-size: 12.5px;
}

.track {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 6px;
}

.cover {
    display: grid;
    place-items: center;
    width: 64px;
    height: 64px;
    border-radius: 8px;
    background: #16161c;
    box-shadow: inset 0 0 0 1px #4a4a52;
    color: #8c8c96;
}

.track .t {
    min-width: 0;
    line-height: 1.35;
}

.track b {
    display: block;
    font-size: 15px;
}

.track .t span {
    display: block;
    color: #c8c8cc;
    font-size: 13px;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 14px;
    padding: 6px 0 12px;
}

.controls span {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgb(255 255 255 / 0.09);
}

.controls span.main {
    background: rgb(255 255 255 / 0.18);
}

.qs-sep {
    height: 1px;
    margin: 2px 6px 4px;
    background: rgb(255 255 255 / 0.12);
}

.qs-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 40px;
    padding-inline: 12px;
    border-radius: 12px;
    font-size: 14px;
}

.qs-item.hl {
    background: rgb(255 255 255 / 0.07);
}

/* ---- Docs body: table of contents + content ------------------------------ */

.docs {
    display: grid;
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 80px;
    padding: 88px var(--gutter) 120px;
}

.toc {
    position: sticky;
    inset-block-start: 24px;
    align-self: start;
}

.toc-title {
    margin: 0 0 14px;
    color: var(--mist);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.toc ol,
.toc-m ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

.toc ol {
    border-inline-start: 1px solid var(--line);
}

.toc a,
.toc-m a {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    padding-inline: 16px;
    color: var(--mist);
    font-size: 15px;
    text-decoration: none;
}

.toc a {
    margin-inline-start: -1px;
    border-inline-start: 2px solid transparent;
}

.toc a .n,
.toc-m a .n {
    min-width: 20px;
    font-family: var(--mono);
    font-size: 12px;
}

.toc a:hover,
.toc-m a:hover {
    color: var(--ink);
    background: var(--raised);
}

.toc a:hover {
    border-image: var(--spectrum-y) 1;
}

.toc-links {
    display: grid;
    gap: 2px;
    margin: 28px 0 0;
    padding: 20px 0 0;
    border-block-start: 1px solid var(--line);
    list-style: none;
}

.toc-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    color: var(--mist);
    font-size: 14px;
    text-decoration: none;
}

.toc-links a:hover {
    color: var(--ink);
}

/* The phone's contents list; hidden until the breakpoint below. */
.toc-m {
    display: none;
    margin: 0 0 48px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--raised);
}

.toc-m summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 52px;
    padding-inline: 16px;
    color: var(--mist);
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    list-style: none;
    cursor: pointer;
}

.toc-m summary::-webkit-details-marker {
    display: none;
}

.toc-m[open] summary svg {
    transform: rotate(180deg);
}

.toc-m ol {
    padding: 6px 4px 10px;
    border-block-start: 1px solid var(--line);
}

.content {
    min-width: 0;
    max-width: 880px;
}

.section {
    scroll-margin-block-start: 24px;
}

.section + .section {
    margin-block-start: 104px;
}

.kicker {
    margin: 0;
    color: var(--mist);
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.section h2 {
    margin: 10px 0 0;
    font-family: var(--display);
    font-size: 34px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0.02em;
}

.section h2::after {
    content: '';
    display: block;
    width: 56px;
    height: 3px;
    margin-block-start: 18px;
    border-radius: 3px;
    background: var(--spectrum-x);
}

.section h3 {
    margin: 40px 0 0;
    font-size: 19px;
    font-weight: 650;
    line-height: 1.35;
}

.section p {
    max-width: 68ch;
    margin: 20px 0 0;
}

.section h3 + p,
.section h3 + ul {
    margin-block-start: 10px;
}

.lead {
    font-size: 19px;
    line-height: 1.55;
}

.bullets {
    display: grid;
    gap: 10px;
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}

.bullets li {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 12px;
}

.bullets li::before {
    content: '';
    width: 8px;
    height: 8px;
    margin: 10px 0 0 4px;
    border-radius: 2px;
    background: var(--spectrum);
}

.content :not(pre) > code {
    padding: 0.12em 0.4em;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--raised);
    font-family: var(--mono);
    font-size: 0.86em;
    overflow-wrap: anywhere;
}

/* ---- Feature cards ------------------------------------------------------ */

.cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-block-start: 36px;
}

.card {
    position: relative;
    overflow: hidden;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--raised);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto;
    height: 2px;
    background: var(--spectrum-x);
}

.card .icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 11px;
    background: var(--paper);
    color: var(--link);
}

.section .card h3 {
    margin: 18px 0 0;
    font-size: 18px;
}

.section .card p {
    margin: 8px 0 0;
    color: var(--mist);
    font-size: 16px;
}

/* ---- Code --------------------------------------------------------------- */

.code {
    margin-block-start: 14px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--sunken);
}

.code header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 38px;
    padding-inline: 16px;
    border-block-end: 1px solid var(--line);
    color: var(--mist);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.code header .dots {
    display: flex;
    gap: 6px;
}

.code header .dots i {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--line);
}

.code pre {
    margin: 0;
    padding: 18px 20px;
    overflow-x: auto;
    color: #dfe6ff;
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.75;
}

.code .p {
    color: var(--mist);
    user-select: none;
}

.code .k {
    color: #5cc8ff;
}

.code .c {
    color: #8b93ab;
}

.code .hi {
    color: #f2a8ff;
}

/* ---- Callout ------------------------------------------------------------ */

.note {
    display: flex;
    gap: 16px;
    margin-block-start: 24px;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--note);
}

.note svg {
    margin-block-start: 3px;
    color: var(--link);
}

.section .note p {
    margin: 0;
}

/* ---- Numbered steps ----------------------------------------------------- */

.steps {
    display: grid;
    gap: 10px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

.steps li {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--raised);
}

.steps .n {
    color: var(--link);
    font-family: var(--display);
    font-size: 20px;
    font-weight: 700;
}

/* ---- Tables and keys ---------------------------------------------------- */

.table {
    width: 100%;
    margin-block-start: 24px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 16px;
}

.table th {
    padding: 14px 18px;
    border-block-end: 1px solid var(--line);
    background: var(--raised);
    color: var(--mist);
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-align: start;
    text-transform: uppercase;
}

.table td {
    padding: 16px 18px;
    border-block-end: 1px solid var(--line);
    vertical-align: top;
}

.table tr:last-child td {
    border-block-end: 0;
}

.table td:first-child {
    font-weight: 600;
}

.table .muted {
    color: var(--mist);
}

.kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    padding-inline: 9px;
    border: 1px solid var(--line);
    border-block-end-width: 3px;
    border-radius: 8px;
    background: var(--raised);
    color: var(--ink);
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
}

.keys {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    color: var(--mist);
    font-size: 14px;
}

/* ---- Architecture diagram ----------------------------------------------- */

.diagram {
    display: grid;
    grid-template-columns:
        minmax(0, 1fr) 36px minmax(0, 1fr) 36px minmax(0, 1fr)
        36px minmax(0, 1fr);
    margin-block-start: 32px;
}

.diagram .arrow {
    display: grid;
    place-items: center;
    color: var(--mist);
}

.node {
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--raised);
}

.node.key {
    border: 2px solid transparent;
    background:
        linear-gradient(var(--raised), var(--raised)) padding-box,
        var(--spectrum) border-box;
}

.node b {
    display: block;
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 600;
}

.node span {
    display: block;
    margin-block-start: 6px;
    color: var(--mist);
    font-size: 14px;
    line-height: 1.5;
}

.node.wide {
    margin-block-start: 14px;
}

/* ---- Footer ------------------------------------------------------------- */

.foot {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px 40px;
    padding: 56px var(--gutter) 60px;
    border-block-start: 1px solid var(--line);
}

.foot .brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.foot .brand img {
    width: 52px;
    height: 52px;
    border-radius: 50%;
}

.foot .brand b {
    display: block;
    font-family: var(--display);
    font-size: 16px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.foot .brand span {
    color: var(--mist);
    font-size: 15px;
}

.foot ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0 24px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.foot a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    color: var(--mist);
    font-size: 15px;
    text-decoration: none;
}

.foot a:hover {
    color: var(--ink);
}

.foot .legal {
    grid-column: 1 / -1;
    margin: 0;
    padding-block-start: 24px;
    border-block-start: 1px solid var(--line);
    color: var(--mist);
    font-size: 14px;
}

/* ---- Narrower screens --------------------------------------------------- */

/* Tablets and small laptops: the drawing moves under the copy. */
@media (max-width: 1100px) {
    .hero {
        grid-template-columns: minmax(0, 1fr);
        gap: 56px;
    }

    .shot {
        align-items: flex-start;
        max-width: 560px;
    }

    .docs {
        grid-template-columns: 200px minmax(0, 1fr);
        gap: 48px;
    }

    .diagram {
        grid-template-columns: minmax(0, 1fr) 36px minmax(0, 1fr);
        row-gap: 14px;
    }

    /* Two per row: the arrow after the second node would point off the edge. */
    .diagram .arrow:nth-child(4) {
        display: none;
    }
}

/* Phones. */
@media (max-width: 760px) {
    .bar {
        height: 56px;
        gap: 12px;
        padding-inline: 16px;
    }

    .crumb .org,
    .crumb .sep,
    .bar .wide-only {
        display: none;
    }

    .hero {
        gap: 44px;
        padding: 48px 16px 56px;
    }

    .halo {
        inset-block-start: auto;
        inset-block-end: -200px;
        inset-inline-end: -420px;
    }

    .hero h1 {
        font-size: 44px;
    }

    .tagline {
        font-size: 21px;
    }

    .actions .button {
        flex: 1 1 100%;
        justify-content: center;
    }

    .gtop .clock {
        display: none;
    }

    .gtop .qm {
        margin-inline-start: auto;
    }

    .docs {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
        padding: 32px 16px 72px;
    }

    .toc {
        display: none;
    }

    .toc-m {
        display: block;
    }

    .section + .section {
        margin-block-start: 72px;
    }

    .section h2 {
        font-size: 26px;
    }

    .lead {
        font-size: 18px;
    }

    .cards {
        grid-template-columns: minmax(0, 1fr);
        gap: 14px;
    }

    .card {
        padding: 22px;
    }

    .diagram {
        grid-template-columns: minmax(0, 1fr);
    }

    .diagram .arrow {
        height: 28px;
        transform: rotate(90deg);
    }

    .diagram .arrow:nth-child(4) {
        display: grid;
    }

    /* Tables become labeled rows: the header row is kept for screen readers. */
    .table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip-path: inset(50%);
    }

    .table,
    .table tbody,
    .table tr,
    .table td {
        display: block;
    }

    .table tr {
        padding: 14px 16px;
        border-block-end: 1px solid var(--line);
    }

    .table tr:last-child {
        border-block-end: 0;
    }

    .table td {
        padding: 2px 0;
        border: 0;
    }

    .table td[data-label]::before {
        content: attr(data-label);
        display: block;
        color: var(--mist);
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 500;
        letter-spacing: 0.1em;
        text-transform: uppercase;
    }

    .foot {
        grid-template-columns: minmax(0, 1fr);
        padding: 40px 16px 44px;
    }
}