/*
 * VMAFx documentation site design (ADR-1508).
 *
 * One stylesheet on top of Material for MkDocs: it sets Material's colour and
 * font custom properties and overrides its size selectors. It uses no template
 * override, so Zensical's `classic` variant, which renders the same HTML,
 * takes it unchanged.
 *
 * Sections: fonts, tokens, light scheme, dark scheme, page frame (header, tabs,
 * sidebars, footer), typography, prose measure, links, code, tables,
 * admonitions, content tabs, buttons, cards, landing page, accessibility.
 *
 * Sizes: Material sets the root to 20 px (22 px from 1600 px, 24 px from
 * 2000 px), so `.8rem` is 16 px at the default width. Prose widths are in
 * `em` of the text they hold, not `ch` (ADR-1508, Typography targets).
 */

/* ---------------------------------------------------------------- fonts */

/* Inter 4.1 and JetBrains Mono 2.304, SIL OFL 1.1, served from this site and
 * subset to the ranges in each vendor.json (docs/assets/fonts/, licences
 * beside the files; scripts/docs/vendor_fonts.py). No font CDN. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../assets/fonts/inter/InterVariable.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url("../assets/fonts/inter/InterVariable-Italic.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono/JetBrainsMono-Regular.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono/JetBrainsMono-Italic.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono/JetBrainsMono-Bold.woff2") format("woff2");
}

/* --------------------------------------------------------------- tokens */

:root {
  --md-text-font: "Inter";
  --md-code-font: "JetBrains Mono";

  /* Prose measure: 33 em of Inter holds a median of about 65 characters. */
  --vx-measure: 33em;

  /* Spacing scale (rem; 1 rem is 20 px at the default width). */
  --vx-space-1: 0.2rem;
  --vx-space-2: 0.4rem;
  --vx-space-3: 0.6rem;
  --vx-space-4: 0.8rem;
  --vx-space-5: 1.2rem;
  --vx-space-6: 1.6rem;
  --vx-space-7: 2.4rem;

  --vx-radius-s: 0.2rem;
  --vx-radius-m: 0.4rem;
  --vx-radius-l: 0.6rem;

  /* Type sizes. */
  --vx-text-small: 0.725rem; /* 14.5 px: tables, admonitions */
  --vx-text-nav: 0.7rem; /* 14 px: sidebars */

  /* Brand ink of the header, tabs and footer, from the README banner. */
  --vx-ink: #0b1020;
  --vx-ink-2: #121a33;
  --vx-ink-line: #26304d;
  --vx-ink-fg: #f8fafc;
  --vx-ink-fg-2: #c3cad8;

  --md-primary-fg-color: var(--vx-ink);
  --md-primary-fg-color--light: var(--vx-ink-2);
  --md-primary-fg-color--dark: var(--vx-ink);
  --md-primary-bg-color: var(--vx-ink-fg);
  --md-primary-bg-color--light: var(--vx-ink-fg-2);
}

/* Material sets the footer colours per scheme, on the element that carries
 * the scheme, so both schemes take these. */
[data-md-color-scheme="default"],
[data-md-color-scheme="slate"] {
  --md-footer-fg-color: var(--vx-ink-fg);
  --md-footer-fg-color--light: var(--vx-ink-fg-2);
  --md-footer-fg-color--lighter: #a3acbf;
}

/* --------------------------------------------------------- light scheme */

[data-md-color-scheme="default"] {
  --vx-bg: #ffffff;
  --vx-fg: #0f172a;
  --vx-fg-2: #475569;
  --vx-fg-3: #5b6678;
  --vx-line: #e2e8f0;
  --vx-border: #cbd5e1;
  --vx-surface: #f5f7fb;
  --vx-surface-2: #eef2f8;
  --vx-link: #1d4ed8;
  --vx-link-hover: #6d28d9;
  --vx-focus: #2563eb;
  --vx-on-link: #ffffff;
  --vx-hero-bg: linear-gradient(135deg, #0b1020 0%, #111a35 60%, #0a1a2f 100%);
  --vx-hero-fg: #f8fafc;
  --vx-hero-fg-2: #c3cad8;
  --vx-hero-accent: #67e8f9;

  --vx-blue: #2563eb;
  --vx-green: #15803d;
  --vx-amber: #b45309;
  --vx-red: #b91c1c;
  --vx-violet: #7c3aed;
  --vx-slate: #64748b;

  --md-default-fg-color: var(--vx-fg);
  --md-default-fg-color--light: var(--vx-fg-2);
  --md-default-fg-color--lighter: #94a3b8;
  --md-default-fg-color--lightest: #e2e8f0;
  --md-default-bg-color: var(--vx-bg);
  --md-default-bg-color--light: #ffffffb3;
  --md-default-bg-color--lighter: #ffffff4d;
  --md-default-bg-color--lightest: #ffffff1f;

  --md-accent-fg-color: var(--vx-link-hover);
  --md-accent-fg-color--transparent: #6d28d91a;
  --md-accent-bg-color: #ffffff;
  --md-accent-bg-color--light: #ffffffb3;

  --md-typeset-color: var(--vx-fg);
  --md-typeset-a-color: var(--vx-link);
  --md-typeset-table-color: var(--vx-line);
  --md-typeset-table-color--light: #f8fafc;
  --md-typeset-mark-color: #fde68a;

  --md-code-fg-color: #1e293b;
  --md-code-bg-color: #f3f5f9;
  --md-code-bg-color--light: #f3f5f9b3;
  --md-code-bg-color--lighter: #f3f5f94d;
  --md-code-hl-color: #2563eb;
  --md-code-hl-color--light: #2563eb1a;
  --md-code-hl-number-color: #b42318;
  --md-code-hl-special-color: #be185d;
  --md-code-hl-function-color: #7e22ce;
  --md-code-hl-constant-color: #5b21b6;
  --md-code-hl-keyword-color: #1d4ed8;
  --md-code-hl-string-color: #047857;
  --md-code-hl-name-color: var(--md-code-fg-color);
  --md-code-hl-operator-color: #475569;
  --md-code-hl-punctuation-color: #475569;
  --md-code-hl-comment-color: #57606f;
  --md-code-hl-generic-color: #475569;
  --md-code-hl-variable-color: #9a3412;

  --md-footer-bg-color: var(--vx-ink);
  --md-footer-bg-color--dark: #070b16;

  --md-shadow-z1: 0 0.1rem 0.3rem #0f172a0f;
  --md-shadow-z2: 0 0.2rem 0.6rem #0f172a1a;
  --md-shadow-z3: 0 0.3rem 1rem #0f172a26;
}

/* ---------------------------------------------------------- dark scheme */

[data-md-color-scheme="slate"] {
  --md-hue: 225deg;

  --vx-bg: #0e1424;
  --vx-fg: #e2e8f0;
  --vx-fg-2: #a9b4c7;
  --vx-fg-3: #93a0b6;
  --vx-line: #1f2a44;
  --vx-border: #2d3a5a;
  --vx-surface: #141c31;
  --vx-surface-2: #19223b;
  --vx-link: #67e8f9;
  --vx-link-hover: #c4b5fd;
  --vx-focus: #67e8f9;
  --vx-on-link: #0b1020;
  --vx-hero-bg: linear-gradient(135deg, #111a35 0%, #141f3d 60%, #0f2236 100%);
  --vx-hero-fg: #f8fafc;
  --vx-hero-fg-2: #c3cad8;
  --vx-hero-accent: #67e8f9;

  --vx-blue: #60a5fa;
  --vx-green: #4ade80;
  --vx-amber: #fbbf24;
  --vx-red: #f87171;
  --vx-violet: #a78bfa;
  --vx-slate: #94a3b8;

  --vx-ink: #080c18;
  --vx-ink-2: #0e1424;

  --md-default-fg-color: var(--vx-fg);
  --md-default-fg-color--light: var(--vx-fg-2);
  --md-default-fg-color--lighter: #6b7891;
  --md-default-fg-color--lightest: #1f2a44;
  --md-default-bg-color: var(--vx-bg);
  --md-default-bg-color--light: #0e1424b3;
  --md-default-bg-color--lighter: #0e14244d;
  --md-default-bg-color--lightest: #0e14241f;

  --md-accent-fg-color: var(--vx-link-hover);
  --md-accent-fg-color--transparent: #c4b5fd1a;
  --md-accent-bg-color: #0b1020;
  --md-accent-bg-color--light: #0b1020b3;

  --md-typeset-color: var(--vx-fg);
  --md-typeset-a-color: var(--vx-link);
  --md-typeset-table-color: var(--vx-line);
  --md-typeset-table-color--light: #131b2f;
  --md-typeset-mark-color: #a16207;
  --md-typeset-kbd-color: #1b2540;
  --md-typeset-kbd-accent-color: #222d4b;
  --md-typeset-kbd-border-color: #0b1020;

  --md-code-fg-color: #e2e8f0;
  --md-code-bg-color: #121a2e;
  --md-code-bg-color--light: #121a2eb3;
  --md-code-bg-color--lighter: #121a2e4d;
  --md-code-hl-color: #67e8f9;
  --md-code-hl-color--light: #67e8f91f;
  --md-code-hl-number-color: #fca5a5;
  --md-code-hl-special-color: #f9a8d4;
  --md-code-hl-function-color: #d8b4fe;
  --md-code-hl-constant-color: #c4b5fd;
  --md-code-hl-keyword-color: #93c5fd;
  --md-code-hl-string-color: #6ee7b7;
  --md-code-hl-name-color: var(--md-code-fg-color);
  --md-code-hl-operator-color: #a9b4c7;
  --md-code-hl-punctuation-color: #a9b4c7;
  --md-code-hl-comment-color: #8f9cb4;
  --md-code-hl-generic-color: #a9b4c7;
  --md-code-hl-variable-color: #fdba74;

  --md-footer-bg-color: #080c18;
  --md-footer-bg-color--dark: #05080f;

  --md-shadow-z1: 0 0.1rem 0.3rem #0000004d;
  --md-shadow-z2: 0 0.2rem 0.6rem #00000066;
  --md-shadow-z3: 0 0.3rem 1rem #00000080;
}

/* ----------------------------------------------------------- page frame */

body {
  font-feature-settings: "cv11";
}

.md-header {
  background-color: var(--vx-ink);
  color: var(--vx-ink-fg);
  box-shadow: none;
  border-bottom: 0.05rem solid var(--vx-ink-line);
}

.md-header--shadow {
  box-shadow: 0 0.1rem 0.6rem #0000002e;
}

.md-header__topic:first-child {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.md-search__form {
  background-color: #ffffff14;
  border-radius: var(--vx-radius-m);
}

.md-search__form:hover {
  background-color: #ffffff24;
}

.md-search__input::placeholder {
  color: var(--vx-ink-fg-2);
}

.md-tabs {
  background-color: var(--vx-ink);
  color: var(--vx-ink-fg);
  border-bottom: 0.05rem solid var(--vx-ink-line);
}

.md-tabs__link {
  font-size: var(--vx-text-nav);
  font-weight: 500;
  color: var(--vx-ink-fg-2);
  opacity: 1;
}

.md-tabs__item--active .md-tabs__link,
.md-tabs__link:focus,
.md-tabs__link:hover {
  color: var(--vx-ink-fg);
}

.md-tabs__item--active .md-tabs__link {
  text-decoration: underline;
  text-decoration-color: var(--vx-hero-accent);
  text-decoration-thickness: 0.1rem;
  text-underline-offset: 0.45em;
}

.md-nav {
  font-size: var(--vx-text-nav);
  line-height: 1.45;
}

.md-nav__link {
  margin-top: 0.4em;
}

.md-nav__item--section > .md-nav__link[for],
.md-nav__item--section > .md-nav__link:not([for]) {
  color: var(--vx-fg);
  font-weight: 650;
}

.md-nav__link--active,
.md-nav__item .md-nav__link--active {
  font-weight: 600;
}

.md-nav__title {
  color: var(--vx-fg-2);
  font-weight: 650;
}

.md-sidebar--secondary .md-nav__link {
  color: var(--vx-fg-2);
}

.md-sidebar--secondary .md-nav__link--active,
.md-sidebar--secondary .md-nav__link:hover {
  color: var(--vx-link);
}

.md-footer {
  background-color: var(--md-footer-bg-color);
}

.md-footer-meta {
  background-color: var(--md-footer-bg-color--dark);
}

.md-footer__link {
  padding-bottom: var(--vx-space-4);
  padding-top: var(--vx-space-5);
}

.md-copyright {
  color: var(--md-footer-fg-color--light);
}

/* ----------------------------------------------------------- typography */

.md-typeset {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--vx-fg);
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  color: var(--vx-fg);
  text-wrap: balance;
}

.md-typeset h1 {
  font-size: 1.953em;
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.2;
  margin: 0 0 0.8em;
}

.md-typeset h2 {
  font-size: 1.5625em;
  font-weight: 650;
  letter-spacing: -0.016em;
  line-height: 1.3;
  margin: 2em 0 0.6em;
  padding-top: 0.6em;
  border-top: 0.05rem solid var(--vx-line);
}

.md-typeset h1 + h2,
.md-typeset h1 + p + h2 {
  border-top: 0;
  padding-top: 0;
}

.md-typeset h3 {
  font-size: 1.25em;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin: 1.8em 0 0.5em;
}

.md-typeset h4 {
  font-size: 1em;
  font-weight: 650;
  letter-spacing: 0;
  margin: 1.6em 0 0.4em;
}

.md-typeset h5,
.md-typeset h6 {
  color: var(--vx-fg-2);
  font-weight: 650;
  letter-spacing: 0.02em;
}

.md-typeset .headerlink {
  color: var(--vx-fg-3);
}

.md-typeset strong {
  font-weight: 650;
}

.md-typeset hr {
  border-bottom: 0.05rem solid var(--vx-line);
}

.md-typeset blockquote {
  background-color: var(--vx-surface);
  border-left: 0.2rem solid var(--vx-border);
  border-radius: 0 var(--vx-radius-m) var(--vx-radius-m) 0;
  color: var(--vx-fg);
  padding: var(--vx-space-1) var(--vx-space-4);
}

.md-typeset .footnote {
  color: var(--vx-fg-2);
}

/* ------------------------------------------------------- prose measure */

/* Text blocks keep to the measure; tables, code blocks and figures use the
 * whole column. A list item that holds a code block or a table gives up the
 * measure so the block keeps the column width; its paragraphs keep theirs. */
.md-typeset p,
.md-typeset li,
.md-typeset dd,
.md-typeset dt,
.md-typeset blockquote,
.md-typeset figcaption {
  max-width: var(--vx-measure);
}

.md-typeset li:has(> .highlight, > pre, > .md-typeset__scrollwrap, > table, > .tabbed-set, > .admonition, > details) {
  max-width: none;
}

.md-typeset .admonition,
.md-typeset details {
  max-width: calc(var(--vx-measure) + 2.4em);
}

/* ---------------------------------------------------------------- links */

.md-typeset a {
  color: var(--vx-link);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--vx-link) 45%, transparent);
  text-decoration-thickness: 0.06em;
  text-underline-offset: 0.18em;
  transition: color 125ms, text-decoration-color 125ms;
}

.md-typeset a:focus,
.md-typeset a:hover {
  color: var(--vx-link-hover);
  text-decoration-color: currentcolor;
}

.md-typeset a.headerlink,
.md-typeset a.md-button,
.md-typeset .grid.cards a.vx-card__link,
.md-typeset a.footnote-ref,
.md-typeset a.footnote-backref {
  text-decoration: none;
}

/* ----------------------------------------------------------------- code */

.md-typeset code {
  font-size: 0.875em;
  border-radius: var(--vx-radius-s);
  padding: 0.05em 0.3em;
}

.md-typeset pre {
  line-height: 1.5;
}

.md-typeset pre > code {
  box-shadow: none;
  padding: 0.85em 1.1em;
}

.md-typeset .highlight,
.md-typeset pre {
  border-radius: var(--vx-radius-m);
}

.md-typeset .highlight pre > code,
.md-typeset pre > code {
  border-radius: var(--vx-radius-m);
  border: 0.05rem solid var(--vx-line);
}

.md-typeset .highlight span.filename {
  border-radius: var(--vx-radius-m) var(--vx-radius-m) 0 0;
  font-size: var(--vx-text-small);
  font-weight: 600;
}

/* --------------------------------------------------------------- tables */

.md-typeset table:not([class]) {
  font-size: var(--vx-text-small);
  line-height: 1.5;
  border: 0.05rem solid var(--vx-border);
  border-radius: var(--vx-radius-m);
  box-shadow: none;
}

.md-typeset table:not([class]) th {
  background-color: var(--vx-surface);
  color: var(--vx-fg);
  font-weight: 650;
  min-width: 4rem;
  padding: 0.6em 0.9em;
  text-align: left;
  border-bottom: 0.05rem solid var(--vx-border);
}

.md-typeset table:not([class]) td {
  border-top: 0.05rem solid var(--vx-line);
  padding: 0.55em 0.9em;
}

.md-typeset table:not([class]) tbody tr:first-child td {
  border-top: 0;
}

.md-typeset table:not([class]) tbody tr:hover {
  background-color: var(--vx-surface);
  box-shadow: none;
}

.md-typeset table:not([class]) td:first-child code {
  white-space: nowrap;
}

/* ---------------------------------------------------------- admonitions */

.md-typeset .admonition,
.md-typeset details {
  --vx-adm: var(--vx-blue);

  font-size: var(--vx-text-small);
  line-height: 1.55;
  color: var(--vx-fg);
  background-color: color-mix(in srgb, var(--vx-adm) 7%, var(--vx-bg));
  border: 0.05rem solid color-mix(in srgb, var(--vx-adm) 30%, var(--vx-bg));
  border-left: 0.2rem solid var(--vx-adm);
  border-radius: var(--vx-radius-m);
  box-shadow: none;
  padding: 0 var(--vx-space-4);
  margin: 1.6em 0;
}

.md-typeset .admonition-title,
.md-typeset summary {
  background-color: transparent;
  border: 0;
  color: var(--vx-fg);
  font-weight: 650;
  margin: 0 calc(-1 * var(--vx-space-4));
  padding: var(--vx-space-3) var(--vx-space-4) 0 2.1rem;
}

.md-typeset .admonition-title::before,
.md-typeset summary::before {
  background-color: var(--vx-adm);
  left: var(--vx-space-4);
  top: calc(var(--vx-space-3) + 0.15em);
}

.md-typeset .admonition > :last-child,
.md-typeset details > :last-child {
  margin-bottom: var(--vx-space-3);
}

.md-typeset .admonition.note,
.md-typeset details.note,
.md-typeset .admonition.info,
.md-typeset details.info,
.md-typeset .admonition.abstract,
.md-typeset details.abstract {
  --vx-adm: var(--vx-blue);
}

.md-typeset .admonition.tip,
.md-typeset details.tip,
.md-typeset .admonition.success,
.md-typeset details.success {
  --vx-adm: var(--vx-green);
}

.md-typeset .admonition.warning,
.md-typeset details.warning {
  --vx-adm: var(--vx-amber);
}

.md-typeset .admonition.failure,
.md-typeset details.failure,
.md-typeset .admonition.danger,
.md-typeset details.danger,
.md-typeset .admonition.bug,
.md-typeset details.bug {
  --vx-adm: var(--vx-red);
}

.md-typeset .admonition.question,
.md-typeset details.question,
.md-typeset .admonition.example,
.md-typeset details.example {
  --vx-adm: var(--vx-violet);
}

.md-typeset .admonition.quote,
.md-typeset details.quote {
  --vx-adm: var(--vx-slate);
}

.md-typeset .admonition > .admonition-title,
.md-typeset details > summary,
.md-typeset .admonition.note > .admonition-title,
.md-typeset .admonition.warning > .admonition-title,
.md-typeset .admonition.tip > .admonition-title,
.md-typeset .admonition.danger > .admonition-title {
  background-color: transparent;
}

/* --------------------------------------------------------- content tabs */

.md-typeset .tabbed-set {
  border: 0.05rem solid var(--vx-line);
  border-radius: var(--vx-radius-m);
}

.md-typeset .tabbed-labels {
  box-shadow: inset 0 -0.05rem 0 var(--vx-line);
  padding: 0 var(--vx-space-3);
}

.md-typeset .tabbed-labels > label {
  color: var(--vx-fg-2);
  font-size: var(--vx-text-small);
  font-weight: 600;
  padding: 0.9em 0.9em 0.75em;
}

.md-typeset .tabbed-set > input:checked + label,
.md-typeset .tabbed-labels > label:hover {
  color: var(--vx-link);
}

.md-typeset .tabbed-labels::before {
  background-color: var(--vx-link);
  height: 0.1rem;
}

.md-typeset .tabbed-content {
  padding: 0 var(--vx-space-4);
}

/* -------------------------------------------------------------- buttons */

.md-typeset .md-button {
  /* Explicit: Zensical's classic variant gives buttons a background. */
  background-color: transparent;
  border: 0.1rem solid var(--vx-link);
  border-radius: var(--vx-radius-m);
  color: var(--vx-link);
  font-weight: 600;
  padding: 0.55em 1.25em;
  transition: background-color 125ms, color 125ms, border-color 125ms;
}

.md-typeset .md-button--primary {
  background-color: var(--vx-link);
  border-color: var(--vx-link);
  color: var(--vx-on-link);
}

.md-typeset .md-button:focus,
.md-typeset .md-button:hover {
  background-color: var(--vx-link-hover);
  border-color: var(--vx-link-hover);
  color: var(--vx-on-link);
}

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

.md-typeset .grid {
  grid-gap: var(--vx-space-4);
}

.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  background-color: var(--vx-bg);
  border: 0.05rem solid var(--vx-border);
  border-radius: var(--vx-radius-l);
  padding: var(--vx-space-4) var(--vx-space-5);
  transition: border-color 125ms, box-shadow 125ms;
}

.md-typeset .grid.cards > ul > li:focus-within,
.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid > .card:focus-within,
.md-typeset .grid > .card:hover {
  border-color: var(--vx-link);
  box-shadow: var(--md-shadow-z2);
}

.md-typeset .grid.cards > ul > li > hr,
.md-typeset .grid > .card > hr {
  margin: var(--vx-space-3) 0;
}

.md-typeset .grid.cards > ul > li > p,
.md-typeset .grid > .card > p {
  max-width: none;
}

/* --------------------------------------------------------- landing page */

.md-typeset .vx-hero {
  background: var(--vx-hero-bg);
  border-radius: var(--vx-radius-l);
  color: var(--vx-hero-fg);
  display: grid;
  gap: var(--vx-space-5) var(--vx-space-7);
  grid-template-columns: minmax(0, 1fr);
  margin: 0 0 var(--vx-space-6);
  padding: var(--vx-space-6) var(--vx-space-5);
}

@media screen and (min-width: 60em) {
  .md-typeset .vx-hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    padding: var(--vx-space-7) var(--vx-space-7);
  }
}

.md-typeset .vx-hero h1 {
  color: var(--vx-hero-fg);
  font-size: 2.25em;
  margin: 0 0 0.4em;
}

.md-typeset .vx-hero p {
  color: var(--vx-hero-fg-2);
}

.md-typeset .vx-hero a:not(.md-button) {
  color: var(--vx-hero-accent);
}

.md-typeset .vx-hero a:not(.md-button):focus,
.md-typeset .vx-hero a:not(.md-button):hover {
  color: #ffffff;
}

.md-typeset .vx-hero .md-button {
  border-color: var(--vx-hero-accent);
  color: var(--vx-hero-accent);
  margin: var(--vx-space-2) var(--vx-space-2) 0 0;
}

.md-typeset .vx-hero .md-button--primary {
  background-color: var(--vx-hero-accent);
  color: #0b1020;
}

.md-typeset .vx-hero .md-button:focus,
.md-typeset .vx-hero .md-button:hover {
  background-color: #ffffff;
  border-color: #ffffff;
  color: #0b1020;
}

.md-typeset .vx-hero__command {
  align-self: center;
  min-width: 0;
}

.md-typeset .vx-hero__command > p {
  color: var(--vx-hero-fg-2);
  font-size: var(--vx-text-small);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin: 0 0 var(--vx-space-2);
  text-transform: uppercase;
}

.md-typeset .vx-hero .highlight pre {
  font-size: 0.92em;
}

.md-typeset .vx-hero .highlight pre > code {
  background-color: #070b16;
  border-color: var(--vx-ink-line);
  color: #e2e8f0;
}

.md-typeset .vx-hero .highlight {
  --md-code-hl-name-color: #e2e8f0;
  --md-code-hl-operator-color: #a9b4c7;
  --md-code-hl-punctuation-color: #a9b4c7;
  --md-code-hl-string-color: #6ee7b7;
  --md-code-hl-number-color: #fca5a5;
  --md-code-hl-keyword-color: #93c5fd;
  --md-code-hl-variable-color: #fdba74;
  --md-code-hl-comment-color: #8f9cb4;
  --md-code-hl-function-color: #d8b4fe;
  --md-code-hl-constant-color: #c4b5fd;
  --md-code-hl-special-color: #f9a8d4;
  --md-code-hl-generic-color: #a9b4c7;
}

.md-typeset .vx-hero .md-code__button,
.md-typeset .vx-hero .md-clipboard {
  color: #a9b4c7;
}

.md-typeset .vx-section-label {
  color: var(--vx-fg-2);
  font-size: var(--vx-text-small);
  font-weight: 650;
  letter-spacing: 0.06em;
  margin: var(--vx-space-6) 0 var(--vx-space-3);
  text-transform: uppercase;
}

/* "Start here": the ordered list as a row of numbered steps. */
.md-typeset .vx-steps > ol {
  counter-reset: vx-step;
  display: grid;
  gap: var(--vx-space-4);
  grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.md-typeset .vx-steps > ol > li {
  background-color: var(--vx-surface);
  border: 0.05rem solid var(--vx-line);
  border-radius: var(--vx-radius-l);
  counter-increment: vx-step;
  margin: 0;
  max-width: none;
  padding: var(--vx-space-4) var(--vx-space-4) var(--vx-space-4);
}

.md-typeset .vx-steps > ol > li::before {
  background-color: var(--vx-link);
  border-radius: 50%;
  color: var(--vx-on-link);
  content: counter(vx-step);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--vx-text-small);
  font-weight: 700;
  height: 1.6rem;
  margin-bottom: var(--vx-space-3);
  width: 1.6rem;
}

[dir="ltr"] .md-typeset .vx-steps > ol > li {
  margin-left: 0;
}

@media screen and (max-width: 44.9375em) {
  .md-typeset .vx-steps > ol {
    gap: var(--vx-space-3);
  }

  .md-typeset .vx-steps > ol > li {
    align-items: start;
    column-gap: var(--vx-space-3);
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    padding: var(--vx-space-3) var(--vx-space-4);
  }

  .md-typeset .vx-steps > ol > li::before {
    margin-bottom: 0;
  }
}

/* No edit button beside the hero. */
.md-content__inner:has(.vx-hero) > .md-content__button {
  display: none;
}

/* The landing page's topic tables take the full width. */
.md-typeset .vx-topics .md-typeset__table,
.md-typeset .vx-topics table:not([class]) {
  display: table;
  width: 100%;
}

/* Backend cards: the whole card is its link; a short note under the label. */
/* Material makes the list `display: contents`, so the wrapper is the grid. */
.md-typeset .vx-backends.grid.cards {
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 12rem), 1fr));
}

.md-typeset .vx-backends.grid.cards > ul > li {
  padding: var(--vx-space-3) var(--vx-space-4);
  position: relative;
}

.md-typeset .vx-backends.grid.cards > ul > li > p {
  margin: 0;
}

.md-typeset .vx-backends.grid.cards > ul > li > p:first-child a {
  color: var(--vx-fg);
  font-weight: 650;
  text-decoration: none;
}

.md-typeset .vx-backends.grid.cards > ul > li > p:first-child a::after {
  content: "";
  inset: 0;
  position: absolute;
}

.md-typeset .vx-backends.grid.cards > ul > li > p:first-child a::before {
  color: var(--vx-link);
  content: "\2192";
  float: right;
  margin-left: var(--vx-space-2);
}

.md-typeset .vx-backends.grid.cards > ul > li:hover > p:first-child a,
.md-typeset .vx-backends.grid.cards > ul > li > p:first-child a:focus {
  color: var(--vx-link);
}

.md-typeset .vx-backends.grid.cards > ul > li > p + p {
  color: var(--vx-fg-2);
  font-size: var(--vx-text-small);
}

/* --------------------------------------------------------------- charts */

/* A chart (scripts/docs/generate-charts.py): two static SVGs, one per scheme,
 * that docs/javascripts/charts.js replaces with the interactive view. */
.md-typeset figure.vx-chart {
  align-items: stretch;
  display: block;
  margin: 1.6em 0;
  max-width: 100%;
  text-align: left;
  width: 100%;
}

.md-typeset figure.vx-chart img.vx-chart__static {
  display: block;
  height: auto;
  max-width: 100%;
}

.md-typeset figure.vx-chart--live img.vx-chart__static {
  display: none;
}

.md-typeset .vx-chart__live {
  max-width: 100%;
  overflow-x: auto;
  width: 100%;
}

.md-typeset figure.vx-chart figcaption {
  color: var(--vx-fg-2);
  font-size: var(--vx-text-small);
  font-style: normal;
  margin: var(--vx-space-3) 0 0;
  max-width: var(--vx-measure);
  text-align: left;
}

.md-typeset details.vx-chart__table {
  --vx-adm: var(--vx-slate);

  max-width: none;
}

#vg-tooltip-element {
  font-family: var(--md-text-font-family);
}

/* -------------------------------------------------------- accessibility */

:focus-visible {
  outline: 0.1rem solid var(--vx-focus);
  outline-offset: 0.1rem;
}

.md-typeset a:focus-visible,
.md-typeset .md-button:focus-visible {
  outline: 0.1rem solid var(--vx-focus);
  outline-offset: 0.15rem;
  border-radius: var(--vx-radius-s);
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset a,
  .md-typeset .md-button,
  .md-typeset .grid.cards > ul > li,
  .md-typeset .grid > .card {
    transition: none;
  }
}

@media (forced-colors: active) {
  .md-typeset .admonition,
  .md-typeset details,
  .md-typeset .grid.cards > ul > li,
  .md-typeset .vx-steps > ol > li {
    border: 0.05rem solid CanvasText;
  }

  .md-typeset .vx-hero {
    background: Canvas;
    border: 0.05rem solid CanvasText;
  }
}

@media print {
  .md-typeset .vx-hero {
    background: none;
    color: #000000;
  }

  .md-typeset .vx-hero h1,
  .md-typeset .vx-hero p {
    color: #000000;
  }
}