/* The guide portal's own layout.
   Colours come from the design tokens (assets/tokens.css). The reading scale is the
   portal's own: 16 px body and a 65–80 character measure are a documentation decision,
   not the product's UI scale, so it lives here as one set of variables. */
* {
  box-sizing: border-box;
}

:root {
  --guide-header: 64px;
  --guide-nav: 260px;
  --guide-content: 640px;
  --guide-toc: 200px;
  --guide-gap: 40px;

  --guide-text: 16px;
  --guide-leading: 1.65;
  --guide-h1: 34px;
  --guide-h2: 26px;
  --guide-h3: 20px;
  --guide-code: 13.5px;
  --guide-shadow: var(--elev-pop-light);
}

[data-theme="dark"] {
  --guide-shadow: var(--elev-pop-dark);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--guide-text);
  line-height: var(--guide-leading);
  color: var(--text-primary);
  background: var(--bg-app);
}

a {
  color: var(--text-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm, 6px);
}

/* First tab stop: jump past the navigation straight to the article. */
.skip {
  position: absolute;
  left: var(--space-2, 8px);
  top: calc(-1 * var(--space-12, 48px));
  z-index: 10;
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-panel);
  box-shadow: var(--elev-pop-light);
  color: var(--text-primary);
  font-size: 14px;
}

.skip:focus {
  top: var(--space-2, 8px);
}

/* ------------------------------------------------------------------ header -- */

.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  min-height: var(--guide-header);
  padding: var(--space-2, 8px) var(--space-6, 24px);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-panel);
}

.brand {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  margin-left: auto;
  font-size: 14px;
}

.top-actions input {
  width: 220px;
  padding: var(--space-1, 4px) var(--space-2, 8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  font: inherit;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-raised);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-raised);
  color: var(--text-primary);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
}

/* ------------------------------------------------------------------- grid -- */

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--guide-gap) var(--space-6, 24px);
  max-width: 1240px;
  margin: 0 auto;
  padding: var(--space-4, 16px) var(--space-6, 24px) var(--space-8, 32px);
}

main {
  min-width: 0;
  grid-column: 1;
  grid-row: 2;
}

/* --------------------------------------------------------------------- nav -- */

.side {
  grid-column: 1;
  grid-row: 1;
  font-size: 14px;
}

.nav-group {
  margin: 0 0 var(--space-1, 4px);
}

.nav-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2, 8px);
  padding: var(--space-1, 4px) var(--space-2, 8px);
  border-radius: var(--radius-sm, 6px);
  cursor: pointer;
  list-style: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.nav-group summary::-webkit-details-marker {
  display: none;
}

.nav-group summary::after {
  content: "▸";
  font-size: 11px;
  transition: transform 120ms ease;
}

.nav-group[open] summary::after {
  transform: rotate(90deg);
}

.nav-group summary:hover {
  background: var(--bg-hover);
}

.nav-group ul {
  margin: 0;
  padding: 0 0 0 var(--space-2, 8px);
  list-style: none;
}

.nav-group li {
  margin: 0;
}

.nav-group a {
  display: block;
  padding: 4px var(--space-2, 8px);
  border-radius: var(--radius-sm, 6px);
  color: var(--text-primary);
  line-height: 1.4;
}

.nav-group a:hover {
  background: var(--bg-hover);
  text-decoration: none;
}

.nav-group a[aria-current="page"] {
  background: var(--bg-active, var(--bg-hover));
  font-weight: 600;
}

/* ----------------------------------------------------------------- article -- */

.crumbs {
  font-size: 13px;
  color: var(--text-secondary);
}

h1 {
  margin: var(--space-2, 8px) 0 0;
  font-size: var(--guide-h1);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.summary {
  margin: var(--space-2, 8px) 0 var(--space-2, 8px);
  font-size: 17px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.meta {
  display: flex;
  gap: var(--space-3, 12px);
  align-items: center;
  margin: 0 0 var(--space-4, 16px);
  font-size: 12px;
  color: var(--text-secondary);
}

.status {
  padding: 1px var(--space-2, 8px);
  border-radius: var(--radius-pill, 999px);
  background: var(--bg-hover);
}

.status-experimental {
  background: var(--yellow-100);
  color: var(--neutral-900);
}

article h2,
article h3,
article h4 {
  scroll-margin-top: calc(var(--guide-header) + var(--space-3, 12px));
}

article p {
  margin: 0 0 var(--space-3, 12px);
}

article h2 {
  margin: var(--space-6, 24px) 0 var(--space-2, 8px);
  font-size: var(--guide-h2);
  font-weight: 600;
  line-height: 1.25;
}

article h3 {
  margin: var(--space-5, 20px) 0 var(--space-2, 8px);
  font-size: var(--guide-h3);
  font-weight: 600;
  line-height: 1.3;
}

article ul,
article ol {
  margin: 0 0 var(--space-3, 12px);
  padding-left: var(--space-5, 20px);
}

article li {
  margin: 4px 0;
}

article li > ul,
article li > ol {
  margin: 4px 0 0;
}

/* A wide table scrolls inside itself: the page must never scroll sideways. */
.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  margin: var(--space-2, 8px) 0 var(--space-4, 16px);
  border-radius: var(--radius-sm, 6px);
}

article table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
}

article th,
article td {
  padding: var(--space-1, 4px) var(--space-2, 8px);
  border: 1px solid var(--border-subtle);
  text-align: left;
  vertical-align: top;
}

article th {
  background: var(--bg-hover);
  font-weight: 600;
}

article code {
  padding: 1px 4px;
  border-radius: 4px;
  background: var(--bg-hover);
  font-family: var(--font-mono);
  font-size: var(--guide-code);
}

article :not(pre) > code {
  overflow-wrap: anywhere;
}

article pre {
  overflow-x: auto;
  margin: 0 0 var(--space-3, 12px);
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  line-height: 1.5;
}

article pre code {
  padding: 0;
  background: none;
  font-size: var(--guide-code);
}

article figure {
  margin: var(--space-3, 12px) 0 var(--space-5, 20px);
}

article figure a {
  display: block;
}

article figure img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm, 6px);
}

article figcaption {
  margin-top: var(--space-1, 4px);
  font-size: 13px;
  color: var(--text-secondary);
}

blockquote {
  margin: var(--space-3, 12px) 0;
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border-left: 3px solid var(--accent);
  background: var(--bg-panel);
}

.related,
.next,
.previous {
  margin-top: var(--space-5, 20px);
  padding-top: var(--space-2, 8px);
  border-top: 1px solid var(--border-subtle);
  font-size: 14px;
}

.related h2 {
  margin: 0 0 var(--space-1, 4px);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.related ul {
  margin: 0;
  padding-left: var(--space-4, 16px);
}

.next span,
.previous span {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
}

/* ----------------------------------------------------------- contents col -- */

.toc-col {
  grid-column: 1;
  grid-row: 1;
  font-size: 13px;
}

.toc-inner {
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-panel);
}

.toc-title {
  margin: 0 0 var(--space-1, 4px);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.toc-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-col li {
  margin: 0;
  line-height: 1.45;
}

.toc-col a {
  display: block;
  padding: 2px 0;
  color: var(--text-secondary);
}

.toc-col a:hover,
.toc-col a[aria-current="location"] {
  color: var(--text-accent);
  text-decoration: none;
}

.toc-col a[aria-current="location"] {
  font-weight: 600;
}

.toc-h3 {
  padding-left: var(--space-3, 12px);
}

/* ----------------------------------------------------------------- search -- */

.search-open,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1, 4px);
  height: 34px;
  padding: 0 var(--space-2, 8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-raised);
  color: var(--text-primary);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.search-open:hover,
.theme-toggle:hover {
  background: var(--bg-hover);
}

.theme-toggle {
  width: 34px;
  padding: 0;
  font-size: 15px;
}

kbd {
  padding: 0 4px;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.search-dialog {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: start center;
  padding: min(12vh, 120px) var(--space-4, 16px) var(--space-4, 16px);
}

.search-dialog[hidden] {
  display: none;
}

.search-scrim {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
}

.search-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(640px, 100%);
  max-height: min(70vh, 560px);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md, 10px);
  background: var(--bg-panel);
  box-shadow: var(--guide-shadow);
}

.search-field {
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
  padding: var(--space-3, 12px) var(--space-4, 16px);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 18px;
}

.search-field input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
}

.search-status {
  margin: 0;
  padding: var(--space-2, 8px) var(--space-4, 16px) 0;
  font-size: 12px;
  color: var(--text-secondary);
}

.search-status:empty {
  display: none;
}

.search-results {
  margin: 0;
  padding: var(--space-1, 4px) var(--space-2, 8px) var(--space-2, 8px);
  overflow-y: auto;
  list-style: none;
}

.search-results a {
  display: block;
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border-radius: var(--radius-sm, 6px);
  color: inherit;
}

.search-results a:hover,
.search-results li.active a {
  background: var(--bg-hover);
  text-decoration: none;
}

.search-result-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
}

.search-result-section {
  display: block;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.search-result-snippet {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

.search-hint {
  margin: 0;
  padding: var(--space-2, 8px) var(--space-4, 16px);
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--text-secondary);
}

body.search-open {
  overflow: hidden;
}

/* -------------------------------------------------------------------- brand -- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2, 8px);
}

.brand-logo {
  display: inline-flex;
  color: var(--text-primary);
}

.brand-logo svg {
  display: block;
  width: 22px;
  height: 22px;
}

/* ------------------------------------------------------------------- notes -- */

.note {
  margin: var(--space-3, 12px) 0 var(--space-4, 16px);
  padding: var(--space-2, 8px) var(--space-4, 16px);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm, 6px) var(--radius-sm, 6px) 0;
  background: var(--bg-hover);
}

.note-label {
  margin: 0 0 var(--space-1, 4px);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-accent);
}

.note-label::before {
  content: "ℹ";
  margin-right: 6px;
}

.note-tip {
  border-left-color: var(--state-success);
}

.note-tip .note-label {
  color: var(--state-success);
}

.note-tip .note-label::before {
  content: "✦";
}

.note-warning {
  border-left-color: var(--state-warning);
}

.note-warning .note-label {
  color: var(--state-warning);
}

.note-warning .note-label::before {
  content: "!";
}

.note-danger {
  border-left-color: var(--text-danger);
}

.note-danger .note-label {
  color: var(--text-danger);
}

.note-danger .note-label::before {
  content: "⚠";
}

.note > :last-child {
  margin-bottom: 0;
}

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

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3, 12px);
  margin: var(--space-3, 12px) 0 var(--space-5, 20px);
}

.cards > p {
  margin: 0;
  padding: var(--space-3, 12px) var(--space-4, 16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md, 10px);
  background: var(--bg-panel);
}

.cards > p > a:first-child {
  font-weight: 600;
}

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

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2, 8px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.related-grid a {
  display: block;
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  color: inherit;
}

.related-grid a:hover {
  background: var(--bg-hover);
  text-decoration: none;
}

.related-title {
  display: block;
  font-weight: 600;
}

.related-summary {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

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

.code-block {
  position: relative;
  margin: 0 0 var(--space-3, 12px);
}

.code-block pre {
  margin: 0;
}

.code-copy {
  position: absolute;
  top: var(--space-1, 4px);
  right: var(--space-1, 4px);
  padding: 2px var(--space-2, 8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-panel);
  color: var(--text-secondary);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.code-copy:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* ------------------------------------------------------------------ anchor -- */

.anchor-copy {
  margin-left: var(--space-2, 8px);
  padding: 0 4px;
  border: 0;
  background: none;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.8em;
  opacity: 0;
  cursor: pointer;
}

article h2:hover .anchor-copy,
article h3:hover .anchor-copy,
article h4:hover .anchor-copy,
.anchor-copy:focus-visible {
  opacity: 1;
}

@media (hover: none) {
  .anchor-copy {
    opacity: 1;
  }
}

.copy-toast {
  position: fixed;
  left: 50%;
  bottom: var(--space-6, 24px);
  z-index: 30;
  margin: 0;
  padding: var(--space-2, 8px) var(--space-4, 16px);
  border-radius: var(--radius-pill, 999px);
  background: var(--bg-inverse);
  color: var(--text-inverse);
  font-size: 13px;
  opacity: 0;
  transform: translate(-50%, 8px);
  transition: opacity 140ms ease, transform 140ms ease;
  pointer-events: none;
}

.copy-toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

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

.tabs {
  margin: var(--space-3, 12px) 0 var(--space-4, 16px);
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1, 4px);
  margin-bottom: var(--space-3, 12px);
  border-bottom: 1px solid var(--border-subtle);
}

.tab-button {
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--text-secondary);
  font: inherit;
  cursor: pointer;
}

.tab-button[aria-selected="true"] {
  border-bottom-color: var(--accent);
  color: var(--text-primary);
  font-weight: 600;
}

/* --------------------------------------------------------------------- map -- */

.map-tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 8px);
  align-items: center;
  margin: var(--space-2, 8px) 0 var(--space-3, 12px);
}

.map-tools input,
.map-tools select {
  min-height: 36px;
  padding: var(--space-1, 4px) var(--space-2, 8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-raised);
  color: var(--text-primary);
  font: inherit;
  font-size: 14px;
}

.map-tools input {
  min-width: 240px;
}

.map-views {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm, 6px);
}

.map-views button {
  padding: var(--space-1, 4px) var(--space-3, 12px);
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.map-views button[aria-pressed="true"] {
  background: var(--bg-hover);
  color: var(--text-primary);
  font-weight: 600;
}

.map-count {
  margin: 0 0 0 auto;
  font-size: 12px;
  color: var(--text-secondary);
}

.map-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-3, 12px);
  margin: var(--space-2, 8px) 0 var(--space-4, 16px);
}

.map-card {
  padding: var(--space-3, 12px) var(--space-4, 16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md, 10px);
  background: var(--bg-panel);
}

.map-card h3 {
  margin: 0 0 var(--space-1, 4px);
  font-size: 16px;
}

.map-card-category {
  margin: 0 0 var(--space-1, 4px);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.map-card-description {
  margin: 0 0 var(--space-2, 8px);
  font-size: 14px;
  color: var(--text-secondary);
}

.map-card-more {
  font-size: 13px;
}

.map-empty {
  padding: var(--space-6, 24px);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md, 10px);
  text-align: center;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --------------------------------------------------------------- responsive -- */

/* Phone: one column, the menu is a drawer, the contents sit above the article. */
@media (max-width: 767px) {
  .menu-toggle {
    display: block;
  }

  .side {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 5;
    width: min(320px, 86vw);
    height: 100vh;
    height: 100dvh;
    max-height: none;
    padding: var(--space-4, 16px) var(--space-3, 12px) var(--space-8, 32px);
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--bg-panel);
    border-right: 1px solid var(--border-subtle);
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform 160ms ease;
  }

  .side.open {
    transform: none;
    visibility: visible;
  }

  .scrim {
    position: fixed;
    inset: 0;
    z-index: 4;
    background: var(--bg-overlay, rgba(0, 0, 0, 0.4));
  }

  body.nav-open {
    overflow: hidden;
  }

  .nav-group a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav-group summary {
    min-height: 44px;
  }

  .layout {
    padding: var(--space-3, 12px) var(--space-3, 12px) var(--space-8, 32px);
  }

  .top {
    padding: var(--space-2, 8px) var(--space-3, 12px);
  }

  .brand-sub {
    display: none;
  }

  .search-open-label,
  .search-open-key {
    display: none;
  }

  .search-dialog {
    padding: var(--space-3, 12px);
  }

  h1 {
    font-size: 28px;
  }

  article h2 {
    font-size: 22px;
  }

  article h3 {
    font-size: 18px;
  }
}

/* Tablet: navigation column plus the article, contents above the article. */
@media (min-width: 768px) and (max-width: 1023px) {
  .layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: var(--space-4, 16px);
  }
}

@media (min-width: 768px) {
  .layout {
    grid-template-columns: var(--guide-nav) minmax(0, var(--guide-content));
    justify-content: center;
  }

  .side {
    position: sticky;
    top: var(--guide-header);
    grid-column: 1;
    grid-row: 1 / span 2;
    align-self: start;
    max-height: calc(100vh - var(--guide-header) - var(--space-6, 24px));
    overflow-y: auto;
  }

  .toc-col {
    grid-column: 2;
    grid-row: 1;
  }

  main {
    grid-column: 2;
    grid-row: 2;
  }

  .toc-col ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0 var(--space-3, 12px);
  }

  .toc-h3 {
    padding-left: 0;
  }
}

/* Desktop: navigation, article and contents as three columns. */
@media (min-width: 1280px) {
  .layout {
    grid-template-columns: var(--guide-nav) minmax(0, var(--guide-content)) var(--guide-toc);
    gap: var(--guide-gap);
    max-width: 1240px;
  }

  .side {
    grid-row: 1;
  }

  main {
    grid-column: 2;
    grid-row: 1;
  }

  .toc-col {
    grid-column: 3;
    grid-row: 1;
    position: sticky;
    top: calc(var(--guide-header) + var(--space-4, 16px));
    align-self: start;
    max-height: calc(100vh - var(--guide-header) - var(--space-8, 32px));
    overflow-y: auto;
  }

  .toc-col ul {
    display: block;
  }

  .toc-h3 {
    padding-left: var(--space-3, 12px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .side,
  .nav-group summary::after {
    transition: none;
  }
}