:root {
  --reference-background: #080808;
  --reference-sidebar: #141519;
  --reference-divider: rgba(255, 255, 255, 0.1);
  --reference-text: rgba(255, 255, 255, 0.95);
  --reference-text-muted: rgba(255, 255, 255, 0.68);
  --reference-highlight: var(--accent);
  --reference-highlight-rgb: 254, 185, 0;
  --reference-highlight-soft: rgba(var(--reference-highlight-rgb), 0.18);
  --reference-highlight-strong: rgba(var(--reference-highlight-rgb), 0.32);
  --reference-sidebar-width: 280px;
}

body[data-reference-body] {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow: hidden;
  background: var(--reference-background);
}

body.reference-body-locked {
  overflow: hidden;
}

body.reference-body-lightbox-open {
  overflow: hidden;
}

body[data-reference-body] .site-main {
  flex: 1;
  overflow: hidden;
  padding: 0;
  margin: unset;
}

.reference-skip-link {
  position: absolute;
  top: 0;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.reference-skip-link:focus {
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  clip: auto;
  clip-path: none;
  padding: 0.5rem 0.85rem;
  border-radius: 6px;
  background: var(--reference-highlight);
  color: #08101a;
  font-weight: 600;
  z-index: 25;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  text-decoration: none;
}

.reference-shell {
  height: 100%;
  color: var(--reference-text);
}

[data-reference-lightbox] {
  cursor: zoom-in;
}

[data-reference-lightbox]:focus-visible {
  outline: 2px solid var(--reference-highlight);
  outline-offset: 4px;
}

.reference-app {
  height: 100%;
  display: flex;
  position: relative;
  overflow: hidden;
  background: var(--reference-background);
}

.reference-app--home,
.reference-app--article {
  gap: 0;
}

.reference-sidebar {
  width: var(--reference-sidebar-width);
  background: var(--reference-sidebar);
  border-right: 1px solid var(--reference-divider);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.reference-sidebar__inner {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.5rem 1.25rem 2rem;
  min-height: 100%;
}

.reference-search {
  position: sticky;
  top: 0;
  background: var(--reference-sidebar);
  margin-bottom: 0.75rem;
  padding-bottom: 0;
  z-index: 2;
}

.reference-search__input {
  width: 100%;
  padding: 0.65rem 2.4rem 0.65rem 0.9rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 8, 8, 0.85);
  color: var(--reference-text);
  font-size: 0.95rem;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.reference-search__input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.reference-search__input:focus {
  outline: none;
  border-color: var(--reference-highlight);
  box-shadow: 0 0 0 2px rgba(var(--reference-highlight-rgb), 0.28);
}

.reference-search__icon {
  position: absolute;
  top: 50%;
  right: 0.75rem;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.5);
  pointer-events: none;
}

.reference-nav {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.reference-nav__section {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.35rem 0.35rem 0.35rem 0;
  transition: border-color 0.2s ease;
}

.reference-nav__section.is-open {
  border-color: rgba(255, 255, 255, 0.08);
}

.reference-nav__toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.5rem 0.6rem;
  cursor: pointer;
  text-align: left;
}

.reference-nav__chevron {
  transition: transform 0.2s ease;
}

.reference-nav__section.is-open .reference-nav__chevron {
  transform: rotate(180deg);
}

.reference-map-figure {
  margin: 1.75rem 0;
}

.reference-map-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.28);
  background: rgba(8, 8, 8, 0.6);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.reference-map-placeholder__label {
  color: var(--reference-text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reference-map-figure figcaption {
  margin-top: 0.75rem;
  color: var(--reference-text-muted);
  font-size: 0.85rem;
  text-align: center;
}

.reference-article figure figcaption {
  text-align: center;
}

.reference-table-wrapper {
  margin: 1.75rem 0;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 8, 8, 0.5);
  overflow-x: auto;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
}

.reference-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
}

.reference-table thead th {
  text-align: left;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.8rem 1rem;
  color: rgba(255, 255, 255, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.reference-table tbody td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.reference-table tbody tr:nth-child(odd) {
  background: rgba(255, 255, 255, 0.02);
}

.reference-table tbody tr:hover {
  background: rgba(var(--reference-highlight-rgb), 0.12);
}

.reference-nav__toggle:hover,
.reference-nav__toggle:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
}

.reference-nav__description {
  margin: 0.2rem 0.6rem 0.6rem;
  font-size: 0.8rem;
  color: var(--reference-text-muted);
  line-height: 1.4;
}

.reference-nav__list {
  margin: 0;
  padding: 0 0 0.4rem 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.reference-nav__item {
  margin: 0;
}

.reference-lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(8px);
  z-index: 1400;
  transition: opacity 0.2s ease;
}

.reference-lightbox[hidden] {
  opacity: 0;
  pointer-events: none;
}

.reference-lightbox__dialog {
  position: relative;
  max-width: min(92vw, 1100px);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.reference-lightbox__image {
  max-width: 100%;
  max-height: calc(88vh - 3rem);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  background: rgba(0, 0, 0, 0.6);
}

.reference-lightbox__caption {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.82);
  text-align: center;
}

.reference-lightbox__close {
  position: absolute;
  top: -2.5rem;
  right: -0.5rem;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.95);
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.reference-lightbox__close:hover,
.reference-lightbox__close:focus-visible {
  background: var(--reference-highlight);
  color: #08101a;
  transform: scale(1.05);
  outline: none;
}

@media (max-width: 768px) {
  .reference-lightbox {
    padding: 1.5rem;
  }

  .reference-lightbox__dialog {
    max-width: 100%;
  }

  .reference-lightbox__close {
    top: -2.25rem;
    right: 0;
  }
}

.reference-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--reference-text);
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.reference-nav__link:hover,
.reference-nav__link:focus-visible {
  background: rgba(255, 255, 255, 0.06);
}

.reference-nav__link.is-active {
  background: var(--reference-highlight-soft);
  border-left: 2px solid var(--reference-highlight);
  padding-left: calc(0.6rem - 2px);
}

.reference-nav__link-title {
  color: var(--accent-hover);
  font-size: 0.9rem;
  font-weight: 600;
}

.reference-nav__link-summary {
  font-size: 0.75rem;
  color: var(--reference-text-muted);
  line-height: 1.3;
}

.reference-content {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 2rem clamp(1.25rem, 3vw, 2.75rem) 3rem;
  position: relative;
}

.reference-content__inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.reference-mobile-toggle {
  display: none;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: var(--reference-text);
  font-size: 0.9rem;
  cursor: pointer;
  margin-bottom: 1rem;
}

.reference-mobile-toggle:hover,
.reference-mobile-toggle:focus-visible {
  border-color: var(--reference-highlight);
}

.reference-mobile-toggle__icon {
  font-size: 1rem;
}

.reference-article {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  max-width: 900px;
  margin: 0 auto;
}

.reference-article__header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-bottom: 1px solid var(--reference-divider);
  padding-bottom: 1.5rem;
}

.reference-article__preview {
  margin: 0;
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--reference-panel);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.reference-article__preview img {
  display: block;
  width: 100%;
  height: auto;
}

.reference-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--reference-text-muted);
  text-transform: uppercase;
}

.reference-article__category {
  font-weight: 600;
}

.reference-article__title {
  color: var(--accent);
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  margin: 0;
  font-weight: 700;
}

.reference-article__summary {
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--reference-text-muted);
  max-width: 48rem;
}

.reference-article__body {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  font-size: 1rem;
  line-height: 1.65;
}

.reference-article__body h2 {
  font-size: 1.35rem;
  margin: 0 0 0.85rem;
}

.reference-article__body h3 {
  font-size: 1.1rem;
  margin: 1.6rem 0 0.6rem;
}

.reference-article__body ul,
.reference-article__body ol {
  padding-left: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.reference-article__body img {
  width: 100%;
  max-width: 640px;
  border-radius: 8px;
  margin: 1rem auto;
  border: 1px solid var(--reference-divider);
  background: rgba(0, 0, 0, 0.2);
  padding: 0.4rem;
  display: block;
}

.reference-article__body a {
  color: var(--reference-highlight);
  text-decoration: underline;
}

.reference-article__body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.reference-article__body th,
.reference-article__body td {
  border: 1px solid var(--reference-divider);
  padding: 0.6rem 0.75rem;
  text-align: left;
}

.callout {
  display: flex;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  align-items: flex-start;
}

.callout__icon {
  font-size: 1.25rem;
  position: relative;
  bottom: 6px;
}

.callout__body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: var(--reference-text);
}

.callout__title {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--reference-text-muted);
}

.reference-home__header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.reference-home__header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 2.8vw, 2.3rem);
  color: var(--reference-highlight);
}

.reference-home__header p {
  margin: 0;
  color: var(--reference-text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.reference-content__inner--home {
  max-width: 1180px;
  gap: 2.5rem;
}

.reference-home__columns {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.reference-featured {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.reference-featured__header h2 {
  margin: 0;
  font-size: 1.3rem;
}

.reference-featured__header p {
  margin: 0.2rem 0 0;
  color: var(--reference-text-muted);
  font-size: 0.95rem;
}

.reference-featured__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.reference-featured-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  overflow: hidden;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.reference-featured-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.reference-featured-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
}

.reference-featured-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.reference-featured-card__badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(8, 8, 8, 0.75);
  backdrop-filter: blur(12px);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--reference-text);
}

.reference-featured-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.2rem 1.25rem 1.35rem;
}

.reference-featured-card__title {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.35;
}

.reference-featured-card__summary {
  margin: 0;
  color: var(--reference-text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.reference-featured-card__meta {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.reference-featured-card:hover,
.reference-featured-card:focus-within {
  border-color: rgba(var(--reference-highlight-rgb), 0.35);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.reference-recent {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.reference-recent__header h2 {
  margin: 0;
  font-size: 1.2rem;
}

.reference-recent__header p {
  margin: 0.25rem 0 0;
  color: var(--reference-text-muted);
  font-size: 0.95rem;
}

.reference-recent__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.reference-recent__item {
  display: flex;
}

.reference-recent__link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

.reference-recent__link:hover,
.reference-recent__link:focus-visible {
  color: var(--reference-highlight);
}

.reference-recent__item:last-child .reference-recent__link {
  border-bottom: none;
}

.reference-recent__title {
  font-weight: 600;
  font-size: 0.98rem;
}

.reference-recent__meta {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.reference-recent__empty {
  margin: 0;
  color: var(--reference-text-muted);
  font-size: 0.95rem;
}

.reference-shortcuts {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.reference-shortcuts__header h2 {
  margin: 0;
  font-size: 1.2rem;
}

.reference-shortcuts__header p {
  margin: 0.25rem 0 0;
  color: var(--reference-text-muted);
  font-size: 0.95rem;
}

.reference-shortcut-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.reference-shortcut {
  display: flex;
  gap: 1rem;
  align-items: stretch;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
  color: inherit;
  text-decoration: none;
  transition:
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.reference-shortcut:hover,
.reference-shortcut:focus-visible {
  border-color: rgba(var(--reference-highlight-rgb), 0.35);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.28);
}

.reference-shortcut__media {
  flex: 0 0 96px;
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
}

.reference-shortcut__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.reference-shortcut__body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.reference-shortcut__title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.4;
  font-weight: 600;
}

.reference-shortcut__summary {
  margin: 0;
  color: var(--reference-text-muted);
  font-size: 0.92rem;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.reference-safe-mode {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.75rem 0.95rem;
  border-radius: 8px;
  border-left: 3px solid var(--reference-highlight);
  background: rgba(var(--reference-highlight-rgb), 0.1);
  color: var(--reference-text);
  font-size: 0.95rem;
}

.reference-safe-mode i {
  margin-top: 0.2rem;
  color: var(--reference-highlight);
}

.reference-home-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.reference-home-section__header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.reference-home-section__header h2 {
  margin: 0;
  font-size: 1.3rem;
}

.reference-home-section__header p {
  margin: 0;
  color: var(--reference-text-muted);
  font-size: 0.95rem;
}

.reference-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.reference-list__link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.65rem 0;
  text-decoration: none;
  border-bottom: 1px solid var(--reference-divider);
  color: var(--reference-text);
  transition: color 0.2s ease;
}

.reference-list__link:hover,
.reference-list__link:focus-visible {
  color: var(--reference-highlight);
}

.reference-list__link:last-child {
  border-bottom: none;
}

.reference-list__title {
  font-weight: 600;
  font-size: 1rem;
}

.reference-list__meta {
  font-size: 0.85rem;
  color: var(--reference-text-muted);
}

.reference-list__summary {
  font-size: 0.9rem;
  color: var(--reference-text-muted);
  line-height: 1.5;
}

.reference-index__groups {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.reference-index__category {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 1px solid var(--reference-divider);
  padding-top: 1.25rem;
}

.reference-index__category:first-of-type {
  border-top: none;
  padding-top: 0;
}

.reference-index__category-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.reference-index__category-title {
  margin: 0;
  font-size: 1.1rem;
}

.reference-index__category-description {
  margin: 0;
  color: var(--reference-text-muted);
  font-size: 0.9rem;
}

.reference-index__articles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.reference-index__link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.6rem 0;
  text-decoration: none;
  color: var(--reference-text);
  border-bottom: 1px solid var(--reference-divider);
  transition: color 0.2s ease;
}

.reference-index__link:hover,
.reference-index__link:focus-visible {
  color: var(--reference-highlight);
}

.reference-index__link:last-child {
  border-bottom: none;
}

.reference-index__link-title {
  font-weight: 600;
}

.reference-index__link-summary {
  font-size: 0.85rem;
  color: var(--reference-text-muted);
  line-height: 1.4;
}

.reference-index__empty {
  margin: 0;
  padding: 0.75rem 0.95rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--reference-text-muted);
  font-size: 0.95rem;
}

.reference-app--drawer-open::after {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 10;
}

.reference-app--drawer-open .reference-sidebar {
  transform: translateX(0);
}

/* cloud identification article */

.reference-cloud-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}

.reference-cloud-card {
  flex: 1 1 calc(25% - 1rem);
  min-width: 200px;
  background: var(--bg-card, #111);
  padding: 1rem;
  border-radius: 0.5rem;
  text-align: center;
}

.reference-cloud-card img {
  max-width: 100%;
  border-radius: 0.25rem;
  margin-bottom: 0.5rem;
}

.reference-cloud-card h4 {
  margin: 0.5rem 0 0.25rem;
  font-size: 1.1rem;
}

.reference-cloud-card p {
  font-size: 0.85rem;
  color: var(--text-muted, #ccc);
}

.reference-article .info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 0.4rem;
  cursor: help;
  font-size: 0.95em;
  opacity: 0.8;
}

.reference-article .info-icon:hover,
.reference-article .info-icon:focus-visible,
.reference-article .info-icon.is-tooltip-active {
  opacity: 1;
}

.reference-article .info-icon[data-tooltip] {
  position: relative;
}

.reference-article .info-icon[data-tooltip]::after {
  content: attr(data-tooltip);
  font-family: "Segoe UI", sans-serif;
  position: absolute;
  left: 50%;
  top: calc(100% + 0.4rem);
  transform: translateX(-50%);
  white-space: break-spaces;
  text-align: left;
  box-sizing: border-box;
  background: rgba(8, 8, 8, 0.96);
  color: #fff;
  font-size: 0.8rem;
  line-height: 1.2;
  padding: 0.35rem 0.5rem;
  border-radius: 0.35rem;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.16s ease;
  z-index: 10;
}

.reference-article .info-icon[data-tooltip]:hover::after,
.reference-article .info-icon[data-tooltip].is-tooltip-active::after,
.reference-article .info-icon[data-tooltip]:focus-visible::after {
  opacity: 1;
}

@media (max-width: 1024px) {
  .reference-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    transform: translateX(-110%);
    transition: transform 0.25s ease;
    z-index: 15;
    max-width: min(85vw, 320px);
  }

  .reference-sidebar__inner {
    padding-top: calc(1.5rem + 0.5rem);
  }

  body[data-reference-body] .site-header,
  body[data-reference-body] .site-footer {
    position: relative;
    z-index: 20;
  }

  .reference-mobile-toggle {
    display: inline-flex;
  }

  .reference-home__columns {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .reference-recent {
    position: relative;
  }
}

@media (max-width: 768px) {
  .reference-content {
    padding: 1.5rem 1rem 2rem;
  }

  .reference-content__inner {
    gap: 1.5rem;
  }

  .reference-featured__grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

  .reference-shortcut {
    flex-direction: column;
  }

  .reference-shortcut__media {
    width: 100%;
    aspect-ratio: 16 / 9;
  }

  .reference-list__link,
  .reference-index__link {
    padding: 0.65rem 0.75rem;
  }
}

@media (max-width: 600px) {
  .reference-article__body {
    font-size: 0.98rem;
  }

  .reference-article__body h2 {
    font-size: 1.2rem;
  }

  .reference-article__body h3 {
    font-size: 1.05rem;
  }

  .reference-shortcut-grid {
    grid-template-columns: 1fr;
  }

  .reference-featured-card__body {
    padding: 1rem 1.05rem 1.15rem;
  }
}