/* Posting 3 docs theme.
   Every page takes its colours from the active Posting theme (palettes.css)
   and its type from the tokens below, so the guide matches the homepage.
   Material's own variables are pointed at the same tokens. Sizes assume
   Material's 125% root. */
:root {
  /* Headings and labels use the homepage's terminal face; body text stays
     in a sans for long reading. */
  --font-display: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-body: "Schibsted Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-grid: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  /* Small headings, buttons and eyebrows. */
  --font-label: var(--font-display);
  --display-weight: 700;
  --display-weight-2: 700;
  --display-vars: normal;
  --display-tracking: -0.01em;
  --display-leading: 1.08;
  --display-scale: 1;
  --display-style: normal;
  --label-weight: 600;
  --label-tracking: -0.01em;
  /* Advance width of one --font-grid cell, in em. */
  --grid-adv: 0.6;
  /* Square corners, like the panes on the homepage. */
  --radius: 0;
  --glow: color-mix(in oklab, var(--primary) 22%, transparent);
  --glow-2: color-mix(in oklab, var(--accent) 16%, transparent);
  --hairline: color-mix(in oklab, var(--border) 70%, transparent);
  --body-text: color-mix(in oklab, var(--text) 82%, var(--muted));
  --md-text-font: "Schibsted Grotesk";
  --md-code-font: "JetBrains Mono";
}

/* ---- Material variables ----------------------------------------------------- */

/* Material sets its scheme on <body>; the extra attribute outranks it. */
:root [data-md-color-scheme] {
  color-scheme: inherit;

  --md-default-fg-color: var(--text);
  --md-default-fg-color--light: var(--muted);
  --md-default-fg-color--lighter: var(--dim);
  --md-default-fg-color--lightest: color-mix(in oklab, var(--text) 12%, transparent);
  --md-default-bg-color: var(--bg);
  --md-default-bg-color--light: color-mix(in oklab, var(--bg) 54%, transparent);
  --md-default-bg-color--lighter: color-mix(in oklab, var(--bg) 26%, transparent);
  --md-default-bg-color--lightest: color-mix(in oklab, var(--bg) 7%, transparent);

  --md-primary-fg-color: var(--primary);
  --md-primary-fg-color--light: var(--primary-text);
  --md-primary-fg-color--dark: var(--primary);
  --md-primary-bg-color: var(--on-primary);
  --md-primary-bg-color--light: color-mix(in oklab, var(--on-primary) 70%, transparent);
  --md-accent-fg-color: var(--accent-text);
  --md-accent-fg-color--transparent: color-mix(in oklab, var(--accent) 10%, transparent);
  --md-accent-bg-color: var(--on-accent);
  --md-accent-bg-color--light: color-mix(in oklab, var(--on-accent) 70%, transparent);

  --md-typeset-color: var(--body-text);
  --md-typeset-a-color: var(--primary-text);
  --md-typeset-mark-color: color-mix(in oklab, var(--accent) 28%, transparent);
  --md-typeset-table-color: var(--hairline);
  --md-typeset-table-color--light: color-mix(in oklab, var(--surface) 60%, transparent);

  --md-code-fg-color: var(--text);
  --md-code-bg-color: var(--surface);
  --md-code-hl-color: var(--primary);
  --md-code-hl-color--light: color-mix(in oklab, var(--primary) 14%, transparent);
  /* Syntax colours follow the homepage's shell listing. */
  --md-code-hl-keyword-color: var(--primary-text);
  --md-code-hl-string-color: var(--success-text);
  --md-code-hl-number-color: var(--warning-text);
  --md-code-hl-constant-color: var(--accent-text);
  --md-code-hl-special-color: var(--accent-text);
  --md-code-hl-function-color: var(--secondary-text);
  --md-code-hl-variable-color: var(--accent-text);
  --md-code-hl-name-color: var(--text);
  --md-code-hl-operator-color: var(--muted);
  --md-code-hl-punctuation-color: var(--muted);
  --md-code-hl-comment-color: var(--muted);
  --md-code-hl-generic-color: var(--muted);

  --md-admonition-fg-color: var(--body-text);
  --md-admonition-bg-color: var(--surface);

  --md-footer-fg-color: var(--text);
  --md-footer-fg-color--light: var(--muted);
  --md-footer-fg-color--lighter: var(--dim);
  --md-footer-bg-color: var(--bg);
  --md-footer-bg-color--dark: var(--surface);

  --md-shadow-z1: 0 0.2rem 0.5rem color-mix(in oklab, #000 8%, transparent);
  --md-shadow-z2: 0 0.4rem 1.2rem color-mix(in oklab, #000 30%, transparent), 0 0 0 1px var(--border);
  --md-shadow-z3: 0 0.6rem 1.6rem color-mix(in oklab, #000 40%, transparent), 0 0 0 1px var(--border);
}

/* ---- Page ------------------------------------------------------------------- */

body {
  color: var(--text);
  background:
    radial-gradient(60rem 28rem at 85% -12rem, var(--glow), transparent 70%) no-repeat,
    radial-gradient(40rem 22rem at 5% -8rem, var(--glow-2), transparent 70%) no-repeat,
    var(--bg);
  background-attachment: fixed;
  scrollbar-color: var(--border) transparent;
}

::selection {
  background: color-mix(in oklab, var(--primary) 35%, transparent);
}

:focus-visible {
  outline-color: var(--accent);
}

/* ---- Header and tabs -------------------------------------------------------- */

.md-header {
  position: initial;
  color: var(--text);
  background-color: color-mix(in oklab, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
}

.md-header--shadow {
  box-shadow: none;
}

.md-header__topic:first-child {
  font-family: var(--font-label);
  font-weight: var(--label-weight);
  letter-spacing: var(--label-tracking);
}

nav.md-tabs {
  background: transparent;
  color: var(--text);
  box-sizing: content-box;
  max-width: 800px;
  margin: 0 auto;
}

nav.md-tabs .md-tabs__link {
  position: relative;
  font-family: var(--font-label);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: var(--label-tracking);
  color: var(--text);
  opacity: 0.93;
  text-decoration: none;
}

nav.md-tabs .md-tabs__link:hover,
nav.md-tabs .md-tabs__item--active .md-tabs__link {
  color: var(--text);
  opacity: 1;
}

nav.md-tabs .md-tabs__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -3px;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.16s ease-out, left 0.16s ease-out;
}

nav.md-tabs .md-tabs__link:hover::after,
nav.md-tabs .md-tabs__item--active .md-tabs__link::after {
  left: 0;
  width: 100%;
}

nav.md-tabs .md-tabs__item--active .md-tabs__link {
  font-weight: var(--label-weight);
}

/* ---- Search ----------------------------------------------------------------- */

@media (min-width: 60em) {
  /* Material tints the closed search field with translucent black. */
  .md-search__form {
    background-color: color-mix(in oklab, var(--text) 8%, transparent);
    border-radius: var(--radius);
  }

  .md-search__form:hover {
    background-color: color-mix(in oklab, var(--text) 12%, transparent);
  }
}

.md-search__input {
  color: var(--text);
}

.md-search__input::placeholder,
.md-search__icon {
  color: var(--muted);
}

.md-search__output,
.md-search__scrollwrap {
  background-color: var(--surface);
}

.md-search-result__meta {
  color: var(--muted);
  background-color: var(--panel);
  font-family: var(--font-grid);
}

.md-search-result__link:is(:hover, :focus, [data-md-state="active"]) {
  background-color: color-mix(in oklab, var(--primary) 10%, transparent);
}

.md-search-result mark {
  color: var(--accent-text);
}

.md-search-result__more > summary > div {
  color: var(--primary-text);
}

/* ---- Navigation ------------------------------------------------------------- */

.md-nav__title,
.md-nav--primary .md-nav__title[for="__drawer"] {
  color: var(--text);
  background-color: transparent;
  box-shadow: none;
}

.md-nav__title,
.md-nav__item--section > .md-nav__link {
  font-family: var(--font-label);
  font-weight: var(--label-weight);
  letter-spacing: var(--label-tracking);
}

.md-nav__link {
  color: var(--muted);
  background-color: transparent;
  box-shadow: none;
}

.md-nav__link:is(:hover, :focus) {
  color: var(--text);
}

.md-nav__link--active,
.md-nav__item .md-nav__link--active {
  color: var(--primary-text);
}

.md-nav--secondary {
  border-left-color: var(--hairline);
}

/* The page's own headings, listed under it by toc.integrate. */
.md-nav--primary .md-nav__link--active + .md-nav,
.md-nav--primary .md-nav--secondary {
  border-left: 1px solid var(--hairline);
}

@media (max-width: 76.2344em) {
  .md-nav--primary .md-nav__title[for="__drawer"] {
    background-color: var(--surface);
  }

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

/* ---- Content ---------------------------------------------------------------- */

.md-content {
  background-color: transparent;
  padding-bottom: 2.5rem;
}

article {
  max-width: 840px;
  margin: 0 auto !important;
  padding: 0 1rem;
}

@media (min-width: 1220px) {
  article {
    margin: 0 !important;
  }
}

.md-typeset {
  font-family: var(--font-body);
  line-height: 1.65;
}

.md-typeset :is(h1, h2, h3, h4, h5, h6) {
  font-family: var(--font-display);
  font-style: var(--display-style);
  font-variation-settings: var(--display-vars);
  color: var(--text);
  text-wrap: balance;
}

.md-typeset h1 {
  font-size: calc(1.9em * var(--display-scale));
  font-weight: var(--display-weight);
  line-height: var(--display-leading);
  letter-spacing: var(--display-tracking);
  margin: 1.2em 0 0.9em;
}

.md-typeset h2 {
  font-size: calc(1.3em * var(--display-scale));
  font-weight: var(--display-weight-2);
  line-height: calc(var(--display-leading) + 0.12);
  letter-spacing: calc(var(--display-tracking) + 0.005em);
  margin-top: 2.2em;
}

.md-typeset h3 {
  font-size: calc(1.02em * var(--display-scale));
  font-weight: var(--display-weight-2);
  letter-spacing: calc(var(--display-tracking) + 0.01em);
}

.md-typeset :is(h4, h5, h6) {
  font-family: var(--font-label);
  font-weight: var(--label-weight);
  letter-spacing: var(--label-tracking);
}

/* The square that marks features on the homepage. */
.md-typeset h2::before {
  content: "";
  display: inline-block;
  width: 0.45em;
  height: 0.45em;
  margin-right: 0.55em;
  vertical-align: 0.12em;
  background: var(--accent);
}

.md-typeset .headerlink {
  color: var(--dim);
}

.md-typeset .headerlink:is(:hover, :focus),
.md-typeset :target > .headerlink {
  color: var(--accent-text);
}

.md-typeset strong {
  color: var(--text);
}

.md-typeset a {
  color: var(--primary-text);
  text-decoration: underline;
  text-decoration-color: color-mix(in oklab, var(--primary-text) 40%, transparent);
  text-underline-offset: 0.2em;
  transition: color 0.15s, text-decoration-color 0.15s;
}

.md-typeset a:is(:hover, :focus) {
  color: var(--accent-text);
  text-decoration-color: currentColor;
}

.md-typeset :is(a.headerlink, a.md-button, a.md-footer__link) {
  text-decoration: none;
}

.md-typeset hr {
  border-bottom-color: var(--hairline);
}

.md-typeset blockquote {
  color: var(--muted);
  border-left-color: var(--accent);
}

.md-typeset mark {
  color: inherit;
}

.md-typeset img,
.md-typeset video {
  border-radius: var(--radius);
}

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

.md-typeset code {
  font-family: var(--font-grid);
  font-variant-ligatures: none;
}

.md-typeset :not(pre) > code {
  color: var(--text);
  background: color-mix(in oklab, var(--text) 7%, transparent);
  border: 1px solid var(--hairline);
  border-radius: 0.3em;
  padding: 0.05em 0.35em;
}

.md-typeset a > code {
  color: inherit;
}

.md-typeset pre > code {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  scrollbar-color: var(--border) transparent;
}

@media (max-width: 44.9844em) {
  /* Material runs code blocks to the screen edges here. */
  .md-content__inner > .highlight pre > code,
  .md-content__inner > pre > code {
    border-inline: 0;
    border-radius: 0;
  }
}

.md-typeset .highlight span.filename {
  font-family: var(--font-grid);
  font-weight: 600;
  color: var(--muted);
  background-color: var(--panel);
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
}

.md-typeset .highlight span.filename + pre > code {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.md-typeset .highlight .gp {
  color: var(--accent);
  user-select: none;
}

.md-clipboard {
  color: var(--dim);
}

.md-clipboard:is(:hover, :focus) {
  color: var(--accent-text);
}

/* Keys look like the homepage's keycaps. */
.md-typeset kbd {
  font-family: var(--font-grid);
  font-size: 0.78em;
  font-weight: 600;
  line-height: 1;
  vertical-align: 0.08em;
  padding: 0.3em 0.5em 0.25em;
  border-radius: 0.3em;
  color: var(--accent-text);
  background: color-mix(in oklab, var(--accent) 12%, var(--surface));
  border: 1px solid color-mix(in oklab, var(--accent) 30%, var(--border));
  box-shadow: 0 1px 0 color-mix(in oklab, var(--accent) 25%, transparent);
}

/* ---- Tables ----------------------------------------------------------------- */

.md-typeset table:not([class]) {
  font-size: 0.72rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--surface) 55%, transparent);
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  font-family: var(--font-label);
  font-weight: var(--label-weight);
  letter-spacing: var(--label-tracking);
  color: var(--text);
  background: var(--surface);
}

.md-typeset table:not([class]) :is(th, td) {
  border-top-color: var(--hairline);
}

.md-typeset table:not([class]) tbody tr:hover {
  background-color: color-mix(in oklab, var(--primary) 6%, transparent);
  box-shadow: none;
}

/* ---- Admonitions ------------------------------------------------------------ */

/* Outranks Material's per-type borders. --adm is the type's colour. */
.md-typeset :is(.admonition, details)[class] {
  border:1px solid color-mix(in oklab, var(--adm) 40%, var(--border));
  border-radius: var(--radius);
  background-color: var(--surface);
  box-shadow: none;
}

.md-typeset :is(.admonition, details)[class]:focus-within {
  box-shadow: 0 0 0 0.15rem color-mix(in oklab, var(--adm) 18%, transparent);
}

.md-typeset :is(.admonition, details) > :is(.admonition-title, summary) {
  font-family: var(--font-label);
  font-weight: var(--label-weight);
  letter-spacing: var(--label-tracking);
  color: var(--text);
  background-color: color-mix(in oklab, var(--adm) 12%, transparent);
  border: 0;
}

.md-typeset :is(.admonition, details) > :is(.admonition-title, summary)::before {
  background-color: var(--adm);
}

.md-typeset :is(.admonition, details) > summary::after {
  color: var(--adm);
}

.md-typeset :is(.admonition, details) { --adm: var(--info); }
.md-typeset :is(.abstract, .summary, .tldr, .example) { --adm: var(--secondary); }
.md-typeset :is(.tip, .hint, .important, .success, .check, .done) { --adm: var(--success); }
.md-typeset :is(.question, .help, .faq, .quote, .cite) { --adm: var(--accent); }
.md-typeset :is(.warning, .caution, .attention) { --adm: var(--warning); }
.md-typeset :is(.failure, .fail, .missing, .danger, .error, .bug) { --adm: var(--error); }

/* ---- Buttons ---------------------------------------------------------------- */

.md-typeset .md-button {
  font-family: var(--font-label);
  font-size: 0.64rem;
  font-weight: 600;
  padding: 0.75em 1.15em;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text);
  background: color-mix(in oklab, var(--surface) 80%, transparent);
}

.md-typeset .md-button:is(:hover, :focus) {
  color: var(--text);
  border-color: var(--muted);
  background: var(--panel);
}

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

.md-typeset .md-button--primary:is(:hover, :focus) {
  color: var(--on-primary);
  border-color: var(--primary);
  background: color-mix(in oklab, var(--primary) 85%, var(--text));
}

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

.md-footer {
  border-top: 1px solid var(--border);
}

.md-footer__link {
  opacity: 1;
}

.md-footer__title {
  font-family: var(--font-label);
  font-weight: var(--label-weight);
  letter-spacing: var(--label-tracking);
}

.md-footer__direction {
  font-family: var(--font-grid);
  color: var(--muted);
  opacity: 1;
}

.md-footer__link:is(:hover, :focus) .md-footer__title {
  color: var(--accent-text);
}

/* Drawn like Posting's own key bar, as on the homepage. */
.md-footer-meta {
  font-family: var(--font-grid);
  border-top: 1px solid var(--border);
}

.md-footer-meta .md-copyright,
.md-footer-meta .md-copyright__highlight {
  color: var(--dim);
}

.md-footer-meta .md-social__link {
  color: var(--muted);
}

.md-footer-meta .md-social__link:is(:hover, :focus) {
  color: var(--accent-text);
}

/* ---- Theme picker ----------------------------------------------------------- */

.palette-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.palette-picker button {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-grid);
  font-size: 0.6rem;
  cursor: pointer;
  padding: 0.45em 0.8em 0.45em 0.55em;
  border-radius: 99px;
  color: var(--sw-fg);
  background: var(--sw-bg);
  border: 1px solid color-mix(in oklab, var(--sw-fg) 18%, transparent);
  transition: transform 0.15s, box-shadow 0.15s;
}

.palette-picker button:hover {
  transform: translateY(-1px);
}

.palette-picker button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.palette-picker button[aria-checked="true"] {
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent);
}

.palette-picker .sw {
  display: inline-flex;
}

.palette-picker .sw i {
  width: 0.7em;
  height: 0.7em;
  border-radius: 50%;
  margin-left: -0.2em;
  box-shadow: 0 0 0 1.5px var(--sw-bg);
}

.palette-picker .sw i:first-child {
  margin-left: 0;
}

/* The header button shows the active theme's colours. */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  margin: 0.4rem 0.2rem;
  padding: 0;
  cursor: pointer;
  border-radius: 99px;
  border: 1px solid var(--hairline);
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  transition: border-color 0.15s, background-color 0.15s;
}

.theme-toggle:hover,
.theme-toggle[aria-expanded="true"] {
  border-color: var(--muted);
  background: var(--panel);
}

.theme-toggle .sw {
  display: inline-flex;
}

.theme-toggle .sw i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  margin-left: -0.14rem;
  box-shadow: 0 0 0 1.5px var(--surface);
}

.theme-toggle .sw i:first-child { margin-left: 0; background: var(--primary); }
.theme-toggle .sw i:nth-child(2) { background: var(--secondary); }
.theme-toggle .sw i:nth-child(3) { background: var(--accent); }

.theme-menu {
  position: fixed;
  inset: var(--menu-top, 3rem) var(--menu-right, 1rem) auto auto;
  margin: 0;
  width: 15rem;
  max-height: calc(100vh - var(--menu-top, 3rem) - 1rem);
  overflow-y: auto;
  padding: 0.8rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  box-shadow: 0 1.2rem 2.5rem -1rem color-mix(in oklab, #000 55%, transparent);
}

.theme-menu .title {
  display: block;
  margin: 0 0 0.6rem 0.2rem;
  font-family: var(--font-label);
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.theme-menu .palette-picker {
  flex-direction: column;
  gap: 0.35rem;
}

.theme-menu .palette-picker button {
  justify-content: flex-start;
  padding-block: 0.55em;
}

.theme-menu .palette-picker button:hover {
  transform: none;
}

.theme-menu .palette-picker button[aria-checked="true"] {
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 3.5px var(--accent);
}

@media (prefers-reduced-motion: reduce) {
  .palette-picker button,
  nav.md-tabs .md-tabs__link::after {
    transition: none;
  }
}