:root {
  color-scheme: light dark;
  --ekdi-canvas: #f3f3f0;
  --ekdi-surface: #fff;
  --ekdi-surface-soft: #e2e8ef;
  --ekdi-ink: #18202a;
  --ekdi-ink-soft: #37424e;
  --ekdi-muted: #66717d;
  --ekdi-placeholder: #8c96a1;
  --ekdi-line: #d2d8df;
  --ekdi-line-strong: #bbc5ce;
  --ekdi-accent: #173f6b;
  --ekdi-accent-soft: #edf2f6;
  --ekdi-warm: #8b6c3f;
  --ekdi-code: #784552;
  --ekdi-focus: #8b6c3f;
  --ekdi-shell: 1100px;
  --ekdi-reading: 72ch;
  --ekdi-page-top: 30px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ekdi-canvas: #191d23;
    --ekdi-surface: #242932;
    --ekdi-surface-soft: #2e3540;
    --ekdi-ink: #edf1f6;
    --ekdi-ink-soft: #c8d0db;
    --ekdi-muted: #98a3b3;
    --ekdi-placeholder: #7f8998;
    --ekdi-line: #3a424f;
    --ekdi-line-strong: #515b6a;
    --ekdi-accent: #8eb8ff;
    --ekdi-accent-soft: #273a57;
    --ekdi-warm: #d4b77c;
    --ekdi-code: #f0b5c0;
    --ekdi-focus: #d4b77c;
  }
}

html { background: var(--ekdi-canvas); }
body.ekdi-page,
body.index-detail-page,
body.index-list-page,
body.article-page,
body.full-index-page,
body.apu-index-page,
body.apu-term-detail-page {
  min-block-size: 100vh;
  margin: 0;
  padding: 0;
  color: var(--ekdi-ink);
  background: var(--ekdi-canvas);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.ekdi-skip-link {
  position: fixed;
  inset: 12px auto auto 12px;
  z-index: 100;
  padding: 10px 14px;
  color: #fff;
  background: var(--ekdi-ink);
  transform: translateY(-180%);
}
.ekdi-skip-link:focus { transform: translateY(0); }
.visually-hidden:not(:focus, :active) {
  position: absolute !important;
  inline-size: 1px !important;
  block-size: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.ekdi-site-header {
  border-block-end: 1px solid var(--ekdi-line);
  background: rgba(255, 255, 255, .94);
}
@media (prefers-color-scheme: dark) {
  .ekdi-site-header { background: rgba(36, 41, 50, .94); }
}
.ekdi-site-header__inner,
.ekdi-site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  inline-size: min(100% - 40px, var(--ekdi-shell));
  margin-inline: auto;
}
.ekdi-site-header__inner { min-block-size: 68px; }
.ekdi-site-header__inner {
  display: grid;
  grid-template-columns: 260px minmax(240px, 360px) minmax(0, 1fr);
  gap: 0;
}
.ekdi-brand {
  display: inline-flex;
  align-items: center;
  color: var(--ekdi-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.28rem;
  text-decoration: none;
  white-space: nowrap;
}
.ekdi-brand-short { display: none; }
.ekdi-brand:hover { color: var(--ekdi-ink); text-decoration: none; }
.ekdi-global-search { position: relative; flex: 1 1 280px; max-inline-size: 360px; }
.ekdi-global-search input {
  box-sizing: border-box;
  inline-size: 100%;
  block-size: 48px;
  min-block-size: 48px;
  padding: 9px 48px 9px 12px;
  color: var(--ekdi-ink);
  background: var(--ekdi-surface);
  border: 1px solid var(--ekdi-line-strong);
  border-radius: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.4;
}
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration { display: none; -webkit-appearance: none; appearance: none; }
input[type="search"]::-ms-clear { display: none; }
.ekdi-global-search input::placeholder,
.classifier-search-wrap input::placeholder,
.full-index-filter::placeholder,
.apu-filter::placeholder,
.ekdi-home textarea::placeholder {
  color: var(--ekdi-placeholder);
  opacity: 1;
}
.ekdi-search-clear { display: grid; place-items: center; inline-size: 32px; block-size: 32px; padding: 0; color: var(--ekdi-accent); background: transparent; border: 0; border-radius: 2px; cursor: pointer; }
.ekdi-search-clear[hidden] { display: none; }
.ekdi-search-clear::before,
.ekdi-search-clear::after { content: ""; position: absolute; inline-size: 12px; block-size: 1.5px; background: currentColor; border-radius: 1px; }
.ekdi-search-clear::before { transform: rotate(45deg); }
.ekdi-search-clear::after { transform: rotate(-45deg); }
.ekdi-search-clear:hover { color: var(--ekdi-ink); background: var(--ekdi-accent-soft); }
.ekdi-global-search__clear {
  position: absolute;
  z-index: 2;
  inset: 50% 7px auto auto;
  transform: translateY(-50%);
}
.ekdi-global-search__results {
  position: absolute;
  z-index: 40;
  inset: calc(100% + 5px) 0 auto;
  max-block-size: min(420px, 60vh);
  margin: 0;
  padding: 5px;
  overflow-y: auto;
  list-style: none;
  background: var(--ekdi-surface);
  border: 1px solid var(--ekdi-line-strong);
  box-shadow: 0 14px 32px rgba(24, 32, 42, .16);
}
.ekdi-global-search__option {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 10px;
  padding: 10px;
  color: var(--ekdi-ink);
  cursor: pointer;
}
.ekdi-global-search__option:hover,
.ekdi-global-search__option[aria-selected="true"] { background: var(--ekdi-accent-soft); }
.ekdi-global-search__code {
  color: var(--ekdi-code);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: .78rem;
}
.ekdi-global-search__empty { padding: 12px; color: var(--ekdi-muted); }
.ekdi-primary-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ekdi-primary-nav { justify-self: end; }
.ekdi-primary-nav a {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  padding: 8px 11px;
  color: var(--ekdi-accent);
  font-size: .84rem;
  text-decoration: none;
  border-block-end: 2px solid transparent;
}
.ekdi-primary-nav a:hover { background: var(--ekdi-accent-soft); }
.ekdi-primary-nav a[aria-current="page"] {
  color: var(--ekdi-ink);
  border-block-end-color: var(--ekdi-warm);
}

.ekdi-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-block-size: 46px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 0;
  font: 600 .875rem/1.25 Inter, "Segoe UI", Arial, sans-serif;
  text-decoration: none;
  cursor: pointer;
}
.ekdi-button:hover { text-decoration: none; }
.ekdi-button--primary {
  color: #fff;
  background: var(--ekdi-accent);
  border-color: var(--ekdi-accent);
}
.ekdi-button--primary:hover { color: #fff; background: var(--ekdi-ink); border-color: var(--ekdi-ink); }
.ekdi-button--secondary {
  color: var(--ekdi-accent);
  background: var(--ekdi-surface);
  border-color: var(--ekdi-line-strong);
}
.ekdi-button--secondary:hover {
  color: var(--ekdi-ink);
  background: var(--ekdi-accent-soft);
  border-color: var(--ekdi-accent);
}

:where(.ekdi-page, .index-detail-page, .index-list-page, .article-page, .full-index-page)
  :where(a, button, input, textarea, summary):focus-visible {
  outline: 3px solid var(--ekdi-focus);
  outline-offset: 3px;
}
.ekdi-global-search input:focus-visible,
:where(.ekdi-page, .index-detail-page, .index-list-page, .article-page, .full-index-page, .apu-index-page, .apu-term-detail-page)
  :where(input:not([type="checkbox"]):not([type="radio"]), textarea, select):focus-visible {
  border-color: #60758a;
  outline: 2px solid #60758a;
  outline-offset: 1px;
  box-shadow: none;
}

.ekdi-site-footer {
  margin-block-start: 36px;
  padding-block: 24px 42px;
  border-block-start: 1px solid var(--ekdi-line);
  color: var(--ekdi-muted);
  font-size: .8rem;
}
body.index-detail-page > .ekdi-site-footer {
  inline-size: 100%;
  margin-inline: 0;
  padding-block: 24px 42px;
}
.ekdi-site-footer__inner { align-items: flex-start; }
.ekdi-site-footer p { max-inline-size: 72ch; }
.ekdi-footer-copy { display: grid; gap: 7px; }
.ekdi-unofficial-note { color: var(--ekdi-ink-soft); }
.ekdi-footer-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.ekdi-footer-nav a { color: var(--ekdi-accent); }

.ekdi-shell {
  inline-size: min(100% - 40px, var(--ekdi-shell));
  margin-inline: auto;
  padding-block: var(--ekdi-page-top) 56px;
}
.ekdi-breadcrumb { margin-block-end: 22px; color: var(--ekdi-muted); font-size: .78rem; }
.ekdi-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ekdi-breadcrumb li:not(:last-child)::after { content: "›"; margin-inline-start: 8px; }
.ekdi-breadcrumb a { color: var(--ekdi-accent); text-underline-offset: 3px; }

.ekdi-document {
  overflow: hidden;
  background: var(--ekdi-surface);
  border: 1px solid var(--ekdi-line);
  box-shadow: 0 16px 50px rgba(25, 43, 64, .09);
}
.ekdi-document-hero {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  border-block-end: 1px solid var(--ekdi-line);
}
.ekdi-document-hero__meta { padding: 34px; background: var(--ekdi-surface-soft); }
.ekdi-eyebrow {
  display: block;
  margin-block-end: 14px;
  color: var(--ekdi-accent);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.ekdi-document-hero__meta strong {
  font-family: "Courier New", monospace;
  font-size: 1.18rem;
  letter-spacing: .04em;
}
.ekdi-document-hero__title { padding: 38px 44px; }
.ekdi-document-hero h1,
.ekdi-article h1 {
  margin: 0;
  color: var(--ekdi-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  font-weight: 400;
  line-height: 1.08;
  text-wrap: balance;
}
.ekdi-document-hero__title p { max-inline-size: 62ch; margin-block-start: 16px; color: var(--ekdi-ink-soft); }

.ekdi-section { padding: 38px 44px; border-block-end: 1px solid var(--ekdi-line); }
.ekdi-section:last-child { border-block-end: 0; }
.ekdi-section h2,
.ekdi-section h3 {
  color: var(--ekdi-accent);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.ekdi-section h2 { margin-block: 0 16px; }
.ekdi-section p { max-inline-size: var(--ekdi-reading); color: var(--ekdi-ink-soft); }
.index-detail-page .apu-section { padding: 42px 44px; border-block-end: 1px solid var(--ekdi-line); }
.index-detail-page .apu-section h2 {
  margin-block: 0 14px;
  color: var(--ekdi-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}
.apu-section > p { margin-block-end: 12px; color: var(--ekdi-ink-soft); }
.apu-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.apu-list a { display: block; padding: 7px 10px; color: var(--ekdi-accent); background: var(--ekdi-accent-soft); border: 1px solid var(--ekdi-line); text-decoration: none; }
.apu-list a:hover { border-color: var(--ekdi-accent); text-decoration: underline; text-underline-offset: 3px; }
.apu-more { margin-block-start: 12px; }
.apu-more summary { min-block-size: 44px; padding-block: 10px; color: var(--ekdi-accent); cursor: pointer; }
.apu-more ul { margin-block: 8px 0; }
.apu-term-page .apu-related-indexes { max-inline-size: 780px; }
.apu-term-page .index-nav-group { border: 1px solid var(--ekdi-line); background: var(--ekdi-surface); }
.apu-term-page .index-nav-group h2 {
  margin: 0;
  padding: 12px 14px;
  color: var(--ekdi-accent);
  background: var(--ekdi-surface-soft);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.apu-term-page .index-nav-list { border-block-start: 0; }
.apu-term-page .index-nav-list li:last-child { border-block-end: 0; }
.apu-term-page .index-nav-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3px 12px;
  min-block-size: 68px;
  padding: 12px 14px;
  color: var(--ekdi-accent);
}
.apu-term-page .index-nav-code {
  grid-column: 1;
  grid-row: 1;
  display: block;
  justify-self: start;
  padding: 0;
  color: var(--ekdi-code);
  background: transparent;
  border-radius: 0;
  font-family: "Courier New", monospace;
  font-size: .875rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .025em;
}
.apu-term-page .index-nav-name {
  grid-column: 1;
  grid-row: 2;
  color: var(--ekdi-accent);
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.apu-term-page .index-nav-arrow { grid-column: 2; grid-row: 1 / span 2; color: var(--ekdi-accent); }
.apu-term-page .index-nav-link:hover {
  color: var(--ekdi-accent);
  background: var(--ekdi-accent-soft);
}
.apu-term-page .index-nav-link:hover .index-nav-arrow { color: var(--ekdi-accent); }
.apu-directory { padding-block-end: 24px; }
.apu-filter-toolbar { display: block; padding: 28px 44px 24px; border-block-end: 1px solid var(--ekdi-line); background: var(--ekdi-surface-soft); }
.apu-filter-toolbar > .ekdi-eyebrow { display: block; margin-block-end: 10px; }
.apu-filter-wrap { position: relative; }
.apu-filter { box-sizing: border-box; inline-size: 100%; min-block-size: 50px; padding: 12px 48px 12px 14px; border: 1px solid var(--ekdi-line-strong); background: var(--ekdi-surface); color: var(--ekdi-ink); font: inherit; }
.apu-filter:focus-visible { border-color: #60758a; outline: 2px solid #60758a; outline-offset: 1px; }
.apu-filter-clear { position: absolute; inset: 50% 7px auto auto; transform: translateY(-50%); }
.apu-filter-status { margin: 9px 0 0; color: var(--ekdi-muted); font-size: .8rem; }
.apu-filter-empty { margin: 0; padding: 28px 44px; color: var(--ekdi-muted); border-block-end: 1px solid var(--ekdi-line); }
.apu-letter-section { padding: 28px 44px; border-block-end: 1px solid var(--ekdi-line); }
.apu-letter-section h2 { margin: 0 0 16px; font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 400; }
.apu-letter-section ul { columns: 3 250px; column-gap: 36px; margin: 0; padding: 0; list-style: none; }
.apu-letter-section li { break-inside: avoid; margin-block-end: 8px; }
.apu-letter-section a { color: var(--ekdi-accent); text-underline-offset: 3px; }

/* Main search tool */
.ekdi-home main.ekdi-shell { max-inline-size: var(--ekdi-shell); margin-inline: auto; }
.ekdi-home .card {
  padding: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.ekdi-home .card-header,
.ekdi-home .card-title,
.ekdi-home .card-sub { display: none !important; }
.ekdi-home .search-panel { padding: 38px 44px; }
.ekdi-home textarea {
  color: var(--ekdi-ink);
  border-radius: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
}
.ekdi-home #classify-form > .ekdi-eyebrow { display: block; margin-block-end: 11px; }
.ekdi-home .query-composer {
  border-color: var(--ekdi-line-strong);
  background: var(--ekdi-surface);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.ekdi-home .query-composer:focus-within {
  border-color: #60758a;
  box-shadow: 0 0 0 1px #60758a;
}
.ekdi-home .query-composer textarea { box-sizing: border-box; resize: vertical; }
.ekdi-home .query-composer textarea:focus-visible { border-color: transparent; outline: 0 !important; box-shadow: none; }
.ekdi-home .query-actions { border-color: var(--ekdi-line); background: var(--ekdi-surface-soft); }
.ekdi-home .query-shortcut { color: var(--ekdi-muted); }
.ekdi-home .btn-submit {
  min-block-size: 48px;
  padding-inline: 24px;
  font-size: .9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--ekdi-accent);
  border-radius: 0;
}
.ekdi-home .primary-open {
  color: var(--ekdi-accent);
  background: var(--ekdi-surface);
  border: 1px solid var(--ekdi-line-strong);
}
.ekdi-home .primary-open:hover {
  color: var(--ekdi-ink);
  background: var(--ekdi-accent-soft);
  border-color: var(--ekdi-accent);
}
.ekdi-home .review-notice {
  padding: 6px 10px;
  border-inline-start: 2px solid var(--ekdi-line-strong);
  background: transparent;
  color: var(--ekdi-muted);
  font-size: .78rem;
}
.ekdi-home .search-options {
  margin-block-start: 18px;
  border-color: var(--ekdi-line);
  border-radius: 0;
  background: var(--ekdi-surface);
}
.ekdi-home .advanced-options { margin-block-start: 16px; }
.ekdi-home .advanced-options > summary {
  min-block-size: 44px;
  padding: 10px 0;
  color: var(--ekdi-accent);
  cursor: pointer;
}
.ekdi-home .advanced-options .search-options { margin-block-start: 4px; }
@media (pointer: coarse) {
  .ekdi-home .query-shortcut { display: none; }
}
.ekdi-home .home-explainer { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.ekdi-home .home-explainer section { padding: 30px; border-inline-end: 1px solid var(--ekdi-line); }
.ekdi-home .home-explainer section:last-child { border-inline-end: 0; }
.ekdi-home .home-explainer h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; }
.ekdi-home :where(#state-loading, #state-error, #state-results) { margin-block-start: 24px; }
.ekdi-home :where(.primary-code, .primary-name, .alt-code, .alt-name) a { color: inherit; text-decoration-color: var(--ekdi-line-strong); }

/* Directory and article pages */
.index-list-page .page-header { display: none; }
.index-list-page main,
.full-index-page main,
.article-page main,
.apu-index-page main,
.apu-term-detail-page main {
  inline-size: min(100% - 40px, var(--ekdi-shell));
  margin-inline: auto;
}
.index-list-page main,
.apu-index-page main,
.apu-term-detail-page main,
.article-page main,
.full-index-page main { margin-block: var(--ekdi-page-top) 56px; padding: 0; border: 0; background: transparent; }
.index-detail-page main { padding-block-start: var(--ekdi-page-top); }
.directory-document { background: var(--ekdi-surface); border: 1px solid var(--ekdi-line); box-shadow: 0 16px 50px rgba(25, 43, 64, .09); }
.directory-intro { padding: 38px 44px; border-block-end: 1px solid var(--ekdi-line); }
.directory-intro h1 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 400; }
.directory-intro p { max-inline-size: 68ch; margin-block-start: 14px; color: var(--ekdi-ink-soft); }
.department-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; }
.department-list li { border-block-end: 1px solid var(--ekdi-line); }
.department-list li:nth-child(odd) { border-inline-end: 1px solid var(--ekdi-line); }
.department-link { display: grid; grid-template-columns: 5.5rem 1fr auto; gap: 14px; align-items: center; min-block-size: 76px; padding: 14px 20px; color: var(--ekdi-accent); text-decoration: none; }
.department-link:hover { background: var(--ekdi-accent-soft); }
.department-code { color: var(--ekdi-code); font-family: "Courier New", monospace; font-weight: 700; }
.department-meta { display: block; color: var(--ekdi-muted); font-size: .75rem; }

/* Classifier explorer */
.classifier-document { overflow: visible; }
.classifier-explorer { border-block-start: 1px solid var(--ekdi-line); }
.classifier-toolbar { position: relative; padding: 28px 40px 22px; border-block-end: 1px solid var(--ekdi-line); }
.classifier-toolbar > .ekdi-eyebrow { display: block; margin-block-end: 9px; }
.classifier-search-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 40px; align-items: center; min-block-size: 48px; border: 1px solid var(--ekdi-line-strong); background: var(--ekdi-surface); }
.classifier-search-wrap:has(input:focus-visible) { border-color: #60758a; outline: 2px solid #60758a; outline-offset: 1px; }
.classifier-search-wrap input { min-inline-size: 0; padding: 11px 14px; border: 0; outline: 0 !important; background: transparent; font: inherit; }
.classifier-search-clear { position: relative; margin-inline: 4px; }
.classifier-status { margin: 8px 0 0; color: var(--ekdi-muted); font-size: .78rem; }
.classifier-search-results { position: absolute; z-index: 20; inset-inline: 40px; inset-block-start: calc(100% - 20px); max-block-size: min(520px, 65vh); overflow: auto; border: 1px solid var(--ekdi-line-strong); background: var(--ekdi-surface); box-shadow: 0 14px 32px rgba(24, 32, 42, .16); }
.classifier-search-result { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 3px 12px; inline-size: 100%; padding: 13px 16px; border: 0; border-block-end: 1px solid var(--ekdi-line); background: transparent; color: var(--ekdi-ink); font: inherit; text-align: start; cursor: pointer; }
.classifier-search-result:hover { background: var(--ekdi-accent-soft); }
.classifier-search-result-code { grid-row: 1 / span 2; color: var(--ekdi-code); font: 700 .9rem/1.35 "Courier New", monospace; }
.classifier-search-result strong { color: var(--ekdi-accent); font-size: 1rem; font-weight: 400; line-height: 1.3; }
.classifier-search-result small { color: var(--ekdi-muted); font-size: .76rem; line-height: 1.3; overflow-wrap: anywhere; }
.classifier-search-empty { margin: 0; padding: 18px; color: var(--ekdi-muted); }
.classifier-layout { display: grid; grid-template-columns: minmax(0, 13fr) minmax(320px, 8fr); min-block-size: 620px; }
.classifier-tree-panel { min-inline-size: 0; border-inline-end: 1px solid var(--ekdi-line); }
.classifier-tree-actions { display: flex; align-items: center; justify-content: space-between; min-block-size: 52px; padding: 10px 24px; border-block-end: 1px solid var(--ekdi-line); color: var(--ekdi-accent); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; }
.classifier-tree-actions[hidden], .classifier-tree[hidden], .classifier-mobile[hidden] { display: none; }
.classifier-tree-actions button { border: 0; background: transparent; color: var(--ekdi-muted); font: inherit; letter-spacing: 0; text-transform: none; cursor: pointer; }
.classifier-tree { margin: 0; padding: 8px 0 28px; list-style: none; }
.classifier-tree-group { margin: 0; padding: 0 0 0 22px; list-style: none; border-inline-start: 1px solid var(--ekdi-line); }
.classifier-tree-row { display: grid; grid-template-columns: 48px minmax(0, 1fr); align-items: stretch; min-block-size: 56px; border-block-end: 1px solid var(--ekdi-line); }
.classifier-tree-toggle {
  position: relative;
  display: grid;
  place-items: center;
  min-inline-size: 48px;
  min-block-size: 56px;
  padding: 0;
  border: 0;
  border-inline-end: 1px solid transparent;
  background: transparent;
  color: var(--ekdi-accent);
  cursor: pointer;
}
.classifier-tree-toggle::before {
  content: "";
  inline-size: 8px;
  block-size: 8px;
  border-inline-end: 2px solid currentColor;
  border-block-end: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform .15s ease;
}
.classifier-tree-toggle[aria-expanded="true"]::before { transform: rotate(45deg) translate(-1px, -1px); }
.classifier-tree-toggle:hover {
  color: var(--ekdi-ink);
  background: var(--ekdi-accent-soft);
  border-inline-end-color: var(--ekdi-line);
}
.classifier-tree-toggle--leaf { color: transparent; pointer-events: none; }
.classifier-tree-toggle--leaf::before { display: none; }
.classifier-tree-select { display: grid; grid-template-columns: 116px minmax(0, 1fr); align-items: center; gap: 14px; inline-size: 100%; padding: 10px 16px 10px 4px; border: 0; background: transparent; color: var(--ekdi-ink); text-align: start; cursor: pointer; }
.classifier-tree-select:hover { background: var(--ekdi-accent-soft); }
.classifier-tree-code { color: var(--ekdi-code); font: 700 .86rem/1.4 "Courier New", monospace; letter-spacing: .035em; }
.classifier-tree-name { color: var(--ekdi-ink); font-size: 1.04rem; font-weight: 500; line-height: 1.4; text-wrap: pretty; }
.classifier-tree-item[aria-selected="true"] > .classifier-tree-row { background: var(--ekdi-accent-soft); box-shadow: inset 3px 0 0 var(--ekdi-accent); }
.classifier-tree-item[aria-selected="true"] > .classifier-tree-row .classifier-tree-name { color: var(--ekdi-accent); }
.classifier-preview { container: classifier-preview / inline-size; align-self: start; position: sticky; inset-block-start: 18px; min-inline-size: 0; padding: 30px; }
.classifier-preview-empty { margin: 0; color: var(--ekdi-muted); line-height: 1.55; }
.classifier-preview-heading { padding-block-end: 20px; border-block-end: 1px solid var(--ekdi-line); }
.classifier-preview-code { display: block; color: var(--ekdi-code); font: 700 1.02rem/1.3 "Courier New", monospace; letter-spacing: .05em; }
.classifier-preview h2 { min-inline-size: 0; margin: 2px 0 0; font: 400 clamp(1.8rem, 9cqi, 2.45rem)/1.08 Georgia, serif; overflow-wrap: anywhere; text-wrap: balance; }
.classifier-preview h2.classifier-preview-title--medium { font-size: clamp(1.55rem, 7cqi, 2.05rem); }
.classifier-preview h2.classifier-preview-title--compact { font-size: clamp(1.32rem, 5.4cqi, 1.72rem); line-height: 1.12; text-wrap: pretty; }
.classifier-preview-path { display: grid; gap: 3px; margin: 14px 0; padding: 0; list-style: none; color: var(--ekdi-muted); font-size: .78rem; line-height: 1.28; }
.classifier-preview-path li { display: grid; grid-template-columns: 12px minmax(0, 1fr); align-items: baseline; min-inline-size: 0; }
.classifier-preview-path li::before { content: "›"; color: var(--ekdi-code); }
.classifier-preview-path button { padding: 0; border: 0; background: transparent; color: inherit; font: inherit; text-align: start; cursor: pointer; }
.classifier-preview-path button:hover { color: var(--ekdi-accent); }
.classifier-preview-facts { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 18px; margin: 0; padding: 14px 0; border-block: 1px solid var(--ekdi-line); font-size: .85rem; }
.classifier-preview-facts dt { color: var(--ekdi-muted); }
.classifier-preview-facts dd { margin: 0; color: var(--ekdi-ink); }
.classifier-preview :is(.classifier-preview-note, .classifier-preview-children) { padding-block-start: 20px; }
.classifier-preview h3 { margin: 0 0 10px; color: var(--ekdi-accent); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.classifier-preview-note p { margin: 0; line-height: 1.55; }
.classifier-preview-children ul { margin: 0; padding: 0; list-style: none; border-block-start: 1px solid var(--ekdi-line); }
.classifier-preview-children li { border-block-end: 1px solid var(--ekdi-line); }
.classifier-preview-children button { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 10px; inline-size: 100%; padding: 10px 0; border: 0; background: transparent; color: var(--ekdi-accent); text-align: start; cursor: pointer; }
.classifier-child-code { color: var(--ekdi-code); font: 700 .75rem/1.4 "Courier New", monospace; }
.classifier-open-card, .classifier-mobile-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 46px;
  margin-block-start: 24px;
  padding: 10px 16px;
  border: 1px solid var(--ekdi-line-strong);
  background: var(--ekdi-surface);
  color: var(--ekdi-accent);
  text-decoration: none;
}
.classifier-open-card:hover, .classifier-mobile-open:hover {
  color: var(--ekdi-ink);
  background: var(--ekdi-accent-soft);
  border-color: var(--ekdi-accent);
  text-decoration: none;
}
.classifier-open-card::after, .classifier-mobile-open::after { content: "→"; margin-inline-start: 12px; }
.classifier-secondary-links { border-block-start: 1px solid var(--ekdi-line); }
.classifier-mobile-header { padding: 22px 20px; border-block-end: 1px solid var(--ekdi-line); background: var(--ekdi-surface-soft); }
.classifier-mobile-header h2 { margin: 8px 0 0; font: 400 1.7rem/1.12 Georgia, serif; }
.classifier-mobile-header p { margin: 8px 0 0; color: var(--ekdi-muted); }
.classifier-mobile-back { padding: 0; border: 0; background: transparent; color: var(--ekdi-accent); cursor: pointer; }
.classifier-mobile-current-code { display: block; margin-block-start: 18px; color: var(--ekdi-code); font: 700 .8rem/1.4 "Courier New", monospace; }
.classifier-mobile-open { inline-size: 100%; margin-block-start: 18px; }
.classifier-mobile-list { margin: 0; padding: 0; list-style: none; }
.classifier-mobile-list li { border-block-end: 1px solid var(--ekdi-line); }
.classifier-mobile-item { display: grid; grid-template-columns: 92px minmax(0, 1fr) 20px; align-items: center; gap: 10px; inline-size: 100%; min-block-size: 64px; padding: 11px 16px; border: 0; background: transparent; color: var(--ekdi-ink); text-align: start; cursor: pointer; }
.classifier-mobile-item-code { color: var(--ekdi-code); font: 700 .74rem/1.35 "Courier New", monospace; }
.classifier-mobile-item-name { line-height: 1.35; }
.classifier-mobile-item-arrow { color: var(--ekdi-accent); font-size: 1.1rem; }
.classifier-load-error { padding: 24px; color: var(--ekdi-muted); }
.taxonomy-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.taxonomy-tree-link { color: var(--ekdi-accent); font: 400 .85rem/1.4 Arial, sans-serif; text-decoration: none; white-space: nowrap; }
.taxonomy-tree-link::after { content: " →"; }
.full-index-page .directory-intro .ekdi-eyebrow { display: block; margin-block-end: 12px; }
.full-index-toolbar { display: block; padding: 28px 44px 24px; border-block-end: 1px solid var(--ekdi-line); background: var(--ekdi-surface-soft); }
.full-index-toolbar > .ekdi-eyebrow { display: block; margin-block-end: 10px; }
.full-index-filter-wrap { position: relative; }
.full-index-filter { box-sizing: border-box; inline-size: 100%; min-block-size: 50px; padding: 12px 48px 12px 14px; border: 1px solid var(--ekdi-line-strong); background: var(--ekdi-surface); color: var(--ekdi-ink); font: inherit; }
.full-index-filter:focus-visible { border-color: #60758a; outline: 2px solid #60758a; outline-offset: 1px; }
.full-index-filter-clear { position: absolute; inset: 50% 7px auto auto; transform: translateY(-50%); }
.full-index-status { margin: 9px 0 0; color: var(--ekdi-muted); font-size: .8rem; }
.full-index-empty { margin: 0; padding: 28px 44px; color: var(--ekdi-muted); border-block-end: 1px solid var(--ekdi-line); }
.full-index-section { display: grid; grid-template-columns: minmax(210px, 1fr) minmax(0, 3fr); content-visibility: auto; contain-intrinsic-size: auto 720px; border-block-end: 1px solid var(--ekdi-line); background: var(--ekdi-surface-soft); }
.full-index-section[hidden] { display: none !important; }
.full-index-section-header { padding: 26px 28px; border-inline-end: 1px solid var(--ekdi-line); background: var(--ekdi-surface-soft); }
.full-index-section-header h2 { margin: 12px 0 0; color: var(--ekdi-ink); font: 400 1.45rem/1.18 Georgia, "Times New Roman", serif; text-wrap: balance; }
.full-index-section-header p { margin: 12px 0 0; color: var(--ekdi-muted); font-size: .8rem; }
.full-index-list { margin: 0; padding: 0; list-style: none; background: var(--ekdi-surface); }
.full-index-item { border-block-end: 1px solid var(--ekdi-line); }
.full-index-item:last-child { border-block-end: 0; }
.full-index-link { display: grid; grid-template-columns: 112px minmax(0, 1fr) 20px; align-items: center; gap: 14px; min-block-size: 60px; padding: 10px 18px; color: var(--ekdi-accent); text-decoration: none; }
.full-index-link:hover { background: var(--ekdi-accent-soft); }
.full-index-link:focus-visible { outline: 2px solid var(--ekdi-accent); outline-offset: -3px; }
.full-index-code { color: var(--ekdi-code); font: 700 .84rem/1.35 "Courier New", monospace; letter-spacing: .03em; }
.full-index-name { line-height: 1.35; }
.full-index-arrow { color: var(--ekdi-accent); font-size: 1.05rem; }

.ekdi-article { padding: 44px; }
.ekdi-article__meta { color: var(--ekdi-muted); font-size: .8rem; }
.ekdi-article h1 { max-inline-size: 18ch; margin-block: 12px 28px; }
.ekdi-article h2 { max-inline-size: var(--ekdi-reading); margin-block: 38px 14px; font-family: Georgia, "Times New Roman", serif; font-size: 1.65rem; font-weight: 400; }
.ekdi-article :where(p, ul, ol) { max-inline-size: var(--ekdi-reading); }
.ekdi-article p { margin-block: 0 18px; }
.ekdi-article li + li { margin-block-start: 8px; }
.ekdi-article .article-cta { margin-block-start: 36px; padding: 24px; background: var(--ekdi-surface-soft); }
.ekdi-article .article-source { margin-block-start: 30px; padding-block-start: 18px; color: var(--ekdi-muted); border-block-start: 1px solid var(--ekdi-line); font-size: .82rem; }

/* Tree page */
.ekdi-tree .page-header { display: none; }
.ekdi-tree main.ekdi-shell { max-inline-size: var(--ekdi-shell); margin-inline: auto; }
.ekdi-tree .tree-workspace { padding: 30px 36px 42px; }

@media (min-width: 801px) and (max-width: 1100px) {
  .ekdi-site-header__inner {
    grid-template-columns: 260px minmax(240px, 360px) minmax(0, 1fr);
    row-gap: 2px;
    padding-block: 10px 6px;
  }
  .ekdi-brand { grid-column: 1; grid-row: 1; }
  .ekdi-global-search { grid-column: 2; grid-row: 1; inline-size: 100%; }
  .ekdi-primary-nav { grid-column: 1 / -1; grid-row: 2; justify-self: end; }
  .ekdi-primary-nav ul { flex-wrap: nowrap; }
}

@media (min-width: 801px) {
  .full-index-section-header { position: sticky; z-index: 1; inset-block-start: 16px; align-self: start; }
}

@media (max-width: 800px) {
  .ekdi-site-header__inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    min-block-size: 56px;
    padding-block: 0;
  }
  .ekdi-site-header__inner,
  .ekdi-site-footer__inner,
  .ekdi-shell,
  .index-list-page main,
  .full-index-page main,
  .article-page main,
  .apu-index-page main,
  .apu-term-detail-page main { inline-size: min(100% - 24px, var(--ekdi-shell)); }
  .ekdi-brand-full { display: none; }
  .ekdi-brand-short { display: inline; }
  .ekdi-global-search { display: none; }
  .ekdi-primary-nav { justify-self: end; min-inline-size: 0; }
  .ekdi-primary-nav ul { flex-wrap: nowrap; justify-content: flex-end; gap: 0; }
  .ekdi-primary-nav a { min-block-size: 42px; padding: 7px 8px; font-size: .76rem; white-space: nowrap; }
  .ekdi-document-hero { grid-template-columns: 1fr; }
  .ekdi-home .ekdi-document-hero__meta { display: none; }
  .ekdi-document-hero__title,
  .ekdi-section,
  .ekdi-home .search-panel,
  .ekdi-article { padding: 28px 24px; }
  .index-detail-page .apu-section,
  .apu-letter-section { padding: 28px 24px; }
  .apu-filter-toolbar { padding: 24px; }
  .ekdi-home .home-explainer { grid-template-columns: 1fr; }
  .ekdi-home .home-explainer section { border-inline-end: 0; border-block-end: 1px solid var(--ekdi-line); }
  .department-list { grid-template-columns: 1fr; }
  .department-list li:nth-child(odd) { border-inline-end: 0; }
  .directory-intro { padding: 28px 24px; }
  .full-index-toolbar { padding: 24px; }
  .full-index-section { grid-template-columns: 1fr; }
  .full-index-section-header { padding: 24px; border-inline-end: 0; border-block-end: 1px solid var(--ekdi-line); }
  .classifier-toolbar { padding: 22px 16px 18px; }
  .classifier-search-results { inset-inline: 16px; inset-block-start: calc(100% - 16px); }
  .classifier-search-result { grid-template-columns: 1fr; }
  .classifier-search-result-code { grid-row: auto; }
  .classifier-layout { display: block; min-block-size: 0; }
  .classifier-tree-panel { border-inline-end: 0; }
  .classifier-preview { display: none; }
  .taxonomy-heading { align-items: flex-start; flex-direction: column; }
  .taxonomy-tree-link { white-space: normal; }
  .ekdi-home .query-shortcut { display: none; }
  .ekdi-home .query-actions { justify-content: stretch; }
  .ekdi-home .query-actions .btn-submit { inline-size: 100%; }
  .ekdi-home .home-explainer { display: none; }
}

@media (max-width: 520px) {
  .ekdi-primary-nav a { font-size: .77rem; }
  .department-link { grid-template-columns: 1fr auto; gap: 4px 10px; }
  .department-code { grid-column: 1; }
  .department-name { grid-column: 1; }
  .department-arrow { grid-column: 2; grid-row: 1 / span 2; }
  .full-index-link { grid-template-columns: 1fr 20px; gap: 4px 10px; padding: 12px 16px; }
  .full-index-code { grid-column: 1; }
  .full-index-name { grid-column: 1; }
  .full-index-arrow { grid-column: 2; grid-row: 1 / span 2; }
  .ekdi-site-footer__inner { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}