/* ==========================================================================
   Seattle Urbanism Guide — Custom Styles
   Overrides and extensions for the hugo-book theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Color palette & CSS variable overrides
   -------------------------------------------------------------------------- */
/* Seattle official brand colors:
   Seattle Blue #0046AD | Flag Teal #00839A | Light Blue #63B1E5
   Green #A3D559 | Gold #FECB00
   Sources: seattle.gov brand guidelines, flagcolorcodes.com/seattle */
:root {
  --color-link: #0046AD;
  --accent-teal: #00839A;
  --accent-emerald: #A3D559;
  --accent-gold: #FECB00;
  --accent-light-blue: #63B1E5;
  --accent-gradient: linear-gradient(135deg, #0046AD, #00839A);
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --border-radius: 0.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-link: #63B1E5;
    --accent-teal: #2CC8D9;
    --accent-emerald: #B8E07C;
    --accent-gold: #FFD84D;
    --accent-light-blue: #8DC8ED;
    --accent-gradient: linear-gradient(135deg, #3D7FCC, #2DAABB);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.2);
  }
}

/* --------------------------------------------------------------------------
   2. Typography refinements
   -------------------------------------------------------------------------- */
.markdown h1 {
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.markdown h2 {
  font-weight: 650;
  letter-spacing: -0.01em;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--gray-200);
  margin-top: 2rem;
}

.markdown h3 {
  font-weight: 600;
}

.markdown h4 {
  font-weight: 600;
  color: var(--color-link);
}

/* Slightly wider content measure for readability */
.book-page {
  max-width: 56rem;
}

/* --------------------------------------------------------------------------
   3. Homepage hero & intro
   -------------------------------------------------------------------------- */
body.book-kind-home .markdown > h1:first-child {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-link);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding-bottom: 0.5rem;
  border-bottom: none;
  margin-bottom: 0.25rem;
}

/* The intro bold tagline */
body.book-kind-home .markdown > h1:first-child + p {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--body-font-color);
  max-width: 42rem;
}

/* The longer intro paragraph */
body.book-kind-home .markdown > h1:first-child + p + p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--body-font-color);
  opacity: 0.78;
  max-width: 42rem;
  margin-bottom: 2rem;
}

/* "Who this is for" and "How to use this guide" section headings */
body.book-kind-home .markdown > h2 {
  font-size: 1.35rem;
  font-weight: 700;
  border-bottom: none;
  padding-bottom: 0;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

/* Bullet list under "Who this is for" */
body.book-kind-home .markdown > ul {
  padding-left: 0;
  list-style: none;
  margin-bottom: 2rem;
}

body.book-kind-home .markdown > ul > li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

body.book-kind-home .markdown > ul > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-gradient);
}

/* --------------------------------------------------------------------------
   4. Homepage cards (columns shortcode)
   -------------------------------------------------------------------------- */
body.book-kind-home .book-columns {
  gap: 1.25rem;
  margin-bottom: 0.5rem;
}

body.book-kind-home .book-columns > .flex-even {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  margin: 0;
  cursor: pointer;
}

body.book-kind-home .book-columns > .flex-even:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--color-link);
  transform: translateY(-2px);
}

/* Card headings */
body.book-kind-home .book-columns > .flex-even h3 {
  font-size: 1.1rem;
  font-weight: 650;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

body.book-kind-home .book-columns > .flex-even h3 a[href] {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.15s ease;
}

/* Hide the theme's heading anchor icon inside cards */
body.book-kind-home .book-columns > .flex-even h3 a.anchor {
  display: none;
}

body.book-kind-home .book-columns > .flex-even h3 a[href]:hover {
  text-decoration: none;
  opacity: 0.8;
}

body.book-kind-home .book-columns > .flex-even h3 a[href]:visited {
  color: var(--color-link);
}

/* Card body text */
body.book-kind-home .book-columns > .flex-even p {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--body-font-color);
  opacity: 0.8;
  margin: 0;
}

/* --------------------------------------------------------------------------
   5. Sidebar navigation polish
   -------------------------------------------------------------------------- */
.book-menu nav ul a {
  border-radius: 0.25rem;
  padding: 0.4rem 0.5rem;
  margin: 1px 0;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.book-menu nav ul a[href]:hover {
  background-color: var(--gray-100);
  opacity: 1;
}

.book-menu nav ul a.active {
  background-color: var(--gray-100);
  font-weight: 600;
}

.book-brand {
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* --------------------------------------------------------------------------
   6. Content page improvements — tables
   -------------------------------------------------------------------------- */
.markdown table {
  border-radius: var(--border-radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.markdown table tr th {
  background: var(--color-link);
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  border-color: rgba(255, 255, 255, 0.15);
}

@media (prefers-color-scheme: dark) {
  .markdown table tr th {
    background: rgba(99, 177, 229, 0.15);
    color: var(--body-font-color);
    border-color: var(--gray-200);
  }
}

.markdown table tr td {
  font-size: 0.925rem;
}

/* --------------------------------------------------------------------------
   7. Content page improvements — blockquotes
   -------------------------------------------------------------------------- */
.markdown blockquote {
  border-left: 4px solid var(--color-link);
  background: var(--gray-100);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  font-style: italic;
  color: var(--body-font-color);
  opacity: 0.9;
}

/* --------------------------------------------------------------------------
   8. Content page improvements — inline code
   -------------------------------------------------------------------------- */
.markdown code {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 0.25rem;
  font-size: 0.85em;
  padding: 0.15em 0.35em;
}

/* --------------------------------------------------------------------------
   9. Content page improvements — horizontal rules
   -------------------------------------------------------------------------- */
.markdown hr {
  margin: 2.5rem 0;
  background: var(--gray-200);
  height: 1px;
  border: none;
}

/* --------------------------------------------------------------------------
   10. Link hover transitions (global)
   -------------------------------------------------------------------------- */
.markdown a[href] {
  transition: color 0.15s ease;
  text-decoration-color: transparent;
}

.markdown a[href]:hover {
  text-decoration-color: currentColor;
}

/* --------------------------------------------------------------------------
   11. Timeline styles (enhanced)
   -------------------------------------------------------------------------- */
ol.timeline {
  list-style: none;
}

.timeline {
  position: relative;
  padding: 1.5rem 0;
  margin: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 60px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-link), var(--accent-teal, var(--color-link)));
  opacity: 0.25;
  border-radius: 3px;
}

.timeline-entry {
  position: relative;
  padding: 0 0 2rem 90px;
  min-height: 80px;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 0;
  width: 60px;
  text-align: center;
}

.timeline-year {
  display: inline-block;
  background: var(--accent-gradient);
  color: white;
  padding: 0.3rem 0.6rem;
  border-radius: 0.375rem;
  font-weight: 700;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.timeline-marker::after {
  content: '';
  position: absolute;
  right: -19px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--color-link);
  border: 3px solid var(--body-background, white);
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.timeline-entry:hover .timeline-marker::after {
  transform: scale(1.3);
}

.timeline-content {
  background: var(--gray-100);
  border-radius: var(--border-radius);
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--color-link);
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.timeline-entry:hover .timeline-content {
  box-shadow: var(--card-shadow-hover);
  transform: translateX(2px);
}

.timeline-content h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  font-weight: 650;
}

.timeline-content p {
  margin: 0.5rem 0;
  line-height: 1.65;
}

.timeline-legacy {
  font-size: 0.95rem;
  color: var(--body-font-color);
  opacity: 0.8;
  font-style: italic;
}

.timeline-sources {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.timeline-sources-label {
  font-weight: 600;
  color: var(--body-font-color);
  opacity: 0.6;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.timeline-source {
  display: inline-block;
  background: var(--color-link);
  color: white;
  padding: 0.15rem 0.6rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.85;
  text-decoration: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.timeline-source:hover {
  opacity: 1;
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   12. Blog list styles (enhanced)
   -------------------------------------------------------------------------- */
.blog-list {
  margin: 1rem 0;
}

.blog-entry {
  margin-bottom: 1.75rem;
  padding: 1.25rem 1.5rem;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.blog-entry:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--color-link);
}

.blog-entry h2 {
  margin-top: 0;
  margin-bottom: 0.35rem;
  font-size: 1.2rem;
  font-weight: 650;
}

.blog-entry h2 a {
  text-decoration: none;
  color: var(--body-font-color);
  transition: color 0.15s ease;
}

.blog-entry h2 a:hover {
  color: var(--color-link);
}

.blog-meta {
  font-size: 0.825rem;
  color: var(--body-font-color);
  opacity: 0.6;
  margin-bottom: 0.5rem;
}

.blog-tag {
  display: inline-block;
  background: var(--gray-200);
  padding: 0.15rem 0.5rem;
  border-radius: 1rem;
  font-size: 0.7rem;
  font-weight: 500;
  margin-left: 0.25rem;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

.blog-entry p {
  margin: 0.5rem 0 0 0;
  line-height: 1.6;
  font-size: 0.925rem;
  opacity: 0.85;
}

.blog-entry p:last-child a,
.blog-entry > a:last-of-type {
  font-weight: 600;
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   13. Dark mode adjustments
   -------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  .timeline-content {
    background: rgba(255, 255, 255, 0.04);
    border-left-color: var(--color-link);
  }

  .timeline-marker::after {
    border-color: var(--body-background, #343a40);
  }

  .timeline-source {
    background: var(--color-link);
    color: #fff !important;
  }

  .timeline-source:hover {
    opacity: 1;
  }

  .blog-entry {
    background: rgba(255, 255, 255, 0.03);
  }

  body.book-kind-home .book-columns > .flex-even {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
  }

  body.book-kind-home .book-columns > .flex-even:hover {
    border-color: var(--color-link);
    background: rgba(255, 255, 255, 0.05);
  }

  /* Gradient text for dark mode */
  body.book-kind-home .markdown > h1:first-child {
    background: linear-gradient(135deg, #63B1E5, #2CC8D9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
}

/* --------------------------------------------------------------------------
   14. Pagefind search styles
   -------------------------------------------------------------------------- */
.book-search {
  margin-bottom: 0.5rem;
}

.pagefind-ui {
  --pagefind-ui-scale: 0.7;
  --pagefind-ui-primary: var(--color-link);
  --pagefind-ui-text: var(--body-font-color);
  --pagefind-ui-background: var(--body-background, #fff);
  --pagefind-ui-border: var(--gray-200);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: 0.375rem;
  --pagefind-ui-font: inherit;
}

.pagefind-ui .pagefind-ui__search-input {
  font-size: 0.875rem;
  padding: 0.4rem 0.6rem;
  height: auto;
}

.pagefind-ui .pagefind-ui__search-clear {
  padding: 0 0.5rem;
}

.pagefind-ui .pagefind-ui__result-link {
  color: var(--color-link);
}

.pagefind-ui .pagefind-ui__result-excerpt {
  font-size: 0.85rem;
  line-height: 1.4;
}

@media (prefers-color-scheme: dark) {
  .pagefind-ui {
    --pagefind-ui-text: var(--body-font-color, #ccc);
    --pagefind-ui-background: var(--body-background, #343a40);
    --pagefind-ui-border: rgba(255, 255, 255, 0.1);
  }
}

/* --------------------------------------------------------------------------
   15. Glossary term styling
   -------------------------------------------------------------------------- */
.markdown h3 + p,
.markdown h3 + p + p {
  /* Glossary terms already have good structure; just ensure spacing */
}

/* "Why it matters" / "See also" / "Learn more" bold labels */
.markdown p > strong:first-child {
  color: var(--color-link);
}

/* --------------------------------------------------------------------------
   16. "Last updated" footer text
   -------------------------------------------------------------------------- */
.markdown > p:last-child > em:only-child {
  display: block;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
  font-size: 0.85rem;
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   17. Footer polish
   -------------------------------------------------------------------------- */
.book-footer {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--gray-200);
}

/* --------------------------------------------------------------------------
   18. "What this is not" and closing section on homepage
   -------------------------------------------------------------------------- */
body.book-kind-home .markdown > hr + p {
  font-size: 0.9rem;
  opacity: 0.7;
  font-style: italic;
}

/* --------------------------------------------------------------------------
   19. Content depth labels (homepage cards)
   -------------------------------------------------------------------------- */
.content-label {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.15rem 0.55rem;
  border-radius: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.content-label-start {
  background: rgba(0, 131, 154, 0.12);
  color: var(--accent-teal);
}

.content-label-reference {
  background: rgba(0, 70, 173, 0.08);
  color: var(--color-link);
}

.content-label-deep {
  background: rgba(163, 213, 89, 0.15);
  color: #5a8a0a;
}

.content-label-action {
  background: rgba(254, 203, 0, 0.15);
  color: #9a7500;
}

@media (prefers-color-scheme: dark) {
  .content-label-start {
    background: rgba(44, 200, 217, 0.15);
    color: var(--accent-teal);
  }

  .content-label-reference {
    background: rgba(99, 177, 229, 0.12);
    color: var(--color-link);
  }

  .content-label-deep {
    background: rgba(184, 224, 124, 0.15);
    color: var(--accent-emerald);
  }

  .content-label-action {
    background: rgba(255, 216, 77, 0.15);
    color: var(--accent-gold);
  }
}

/* --------------------------------------------------------------------------
   20. Start-here card (homepage)
   -------------------------------------------------------------------------- */
.start-here-card {
  background: var(--gray-100);
  border: 2px solid var(--accent-teal);
  border-radius: var(--border-radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--card-shadow);
  margin-bottom: 1rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.start-here-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}

.start-here-card h3 {
  font-size: 1.1rem;
  font-weight: 650;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.start-here-card h3 a[href] {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.15s ease;
}

.start-here-card h3 a.anchor {
  display: none;
}

.start-here-card p {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--body-font-color);
  opacity: 0.8;
  margin: 0;
}

@media (prefers-color-scheme: dark) {
  .start-here-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--accent-teal);
  }

  .start-here-card:hover {
    background: rgba(255, 255, 255, 0.05);
  }
}

/* Hide the empty placeholder in the odd card column */
.faq-card-placeholder {
  display: none;
}

body.book-kind-home .book-columns:last-of-type > .flex-even:last-child:has(.faq-card-placeholder) {
  background: transparent;
  border: none;
  box-shadow: none;
  cursor: default;
}

body.book-kind-home .book-columns:last-of-type > .flex-even:last-child:has(.faq-card-placeholder):hover {
  transform: none;
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   21. Common questions section (homepage)
   -------------------------------------------------------------------------- */
body.book-kind-home .markdown > h2#common-questions + p {
  font-size: 0.95rem;
  opacity: 0.75;
  margin-bottom: 1rem;
}

body.book-kind-home .markdown > h2#common-questions ~ ul {
  list-style: none;
  padding-left: 0;
}

body.book-kind-home .markdown > h2#common-questions ~ ul > li {
  padding: 0.6rem 1rem;
  margin-bottom: 0.35rem;
  background: var(--gray-100);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--color-link);
  font-size: 0.925rem;
  line-height: 1.5;
}

body.book-kind-home .markdown > h2#common-questions ~ ul > li::before {
  display: none;
}

@media (prefers-color-scheme: dark) {
  body.book-kind-home .markdown > h2#common-questions ~ ul > li {
    background: rgba(255, 255, 255, 0.03);
  }
}

/* --------------------------------------------------------------------------
   22. "New here?" 3-step path (homepage)
   -------------------------------------------------------------------------- */
body.book-kind-home .markdown > h2#new-here-three-steps-to-get-started ~ ol {
  padding-left: 0;
  counter-reset: steps;
  list-style: none;
}

body.book-kind-home .markdown > h2#new-here-three-steps-to-get-started ~ ol > li {
  counter-increment: steps;
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 0.6rem;
  line-height: 1.6;
}

body.book-kind-home .markdown > h2#new-here-three-steps-to-get-started ~ ol > li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0.05em;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: white;
  font-weight: 700;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   23. Bottom-of-page navigation (for mobile users)
   -------------------------------------------------------------------------- */
.page-nav-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}

.page-nav-bottom a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-link);
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.page-nav-bottom a:hover {
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   24. Responsive adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  .timeline::before {
    left: 20px;
  }

  .timeline-entry {
    padding-left: 50px;
  }

  .timeline-marker {
    width: 40px;
  }

  .timeline-year {
    font-size: 0.75rem;
    padding: 0.15rem 0.3rem;
  }

  .timeline-marker::after {
    right: -19px;
    width: 10px;
    height: 10px;
  }

  body.book-kind-home .markdown > h1:first-child {
    font-size: 1.75rem;
  }

  /* Stack cards vertically on mobile */
  body.book-kind-home .book-columns {
    flex-direction: column;
    gap: 0.75rem;
  }

  body.book-kind-home .book-columns > .flex-even {
    padding: 1rem 1.25rem;
    min-width: 100%;
  }

  /* Start-here card mobile */
  .start-here-card {
    padding: 1rem 1.25rem;
  }

  /* Content labels smaller on mobile */
  .content-label {
    font-size: 0.6rem;
    padding: 0.1rem 0.45rem;
  }

  /* Common questions cards tighter */
  body.book-kind-home .markdown > h2#common-questions ~ ul > li {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
  }

  .blog-entry {
    padding: 1rem 1.25rem;
  }

  /* Step numbers smaller on mobile */
  body.book-kind-home .markdown > h2#new-here-three-steps-to-get-started ~ ol > li {
    padding-left: 2rem;
  }

  body.book-kind-home .markdown > h2#new-here-three-steps-to-get-started ~ ol > li::before {
    width: 1.4rem;
    height: 1.4rem;
    font-size: 0.7rem;
  }
}

/* --------------------------------------------------------------------------
   20. Smooth scroll & selection
   -------------------------------------------------------------------------- */
::selection {
  background: rgba(0, 70, 173, 0.2);
}

@media (prefers-color-scheme: dark) {
  ::selection {
    background: rgba(99, 177, 229, 0.25);
  }
}

/* --------------------------------------------------------------------------
   21. Table of contents polish
   -------------------------------------------------------------------------- */
.book-toc nav {
  padding-left: 0.25rem;
  border-left: 2px solid var(--gray-200);
}

.book-toc nav ul a {
  padding: 0.25rem 0;
  transition: color 0.15s ease;
}

.book-toc nav ul a[href]:hover {
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   22. Glossary filter bar
   -------------------------------------------------------------------------- */
.glossary-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 1rem 0 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
}

.glossary-filter-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--body-font-color);
  opacity: 0.6;
  margin-right: 0.25rem;
}

.glossary-filter-btn {
  background: transparent;
  border: 1px solid var(--gray-200);
  border-radius: 1rem;
  padding: 0.3rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  color: var(--body-font-color);
  font-family: inherit;
}

.glossary-filter-btn:hover {
  border-color: var(--color-link);
  color: var(--color-link);
}

.glossary-filter-btn.active {
  background: var(--color-link);
  color: white;
  border-color: var(--color-link);
}

/* --------------------------------------------------------------------------
   23. Glossary tag badges
   -------------------------------------------------------------------------- */
.glossary-tag {
  display: inline-block;
  font-size: 0.6rem;
  padding: 0.15rem 0.5rem;
  border-radius: 1rem;
  vertical-align: middle;
  margin-left: 0.5rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  position: relative;
  top: -2px;
}

.glossary-tag-federal {
  background: rgba(93, 63, 211, 0.1);
  color: #5D3FD3;
}

.glossary-tag-state {
  background: rgba(0, 131, 154, 0.1);
  color: #00839A;
}

.glossary-tag-county {
  background: rgba(180, 130, 0, 0.1);
  color: #B48200;
}

.glossary-tag-city {
  background: rgba(0, 70, 173, 0.1);
  color: #0046AD;
}

.glossary-tag-concept {
  background: rgba(108, 117, 125, 0.1);
  color: #6C757D;
}

@media (prefers-color-scheme: dark) {
  .glossary-tag-federal {
    background: rgba(155, 135, 245, 0.15);
    color: #B0A0F0;
  }

  .glossary-tag-state {
    background: rgba(44, 200, 217, 0.15);
    color: #2CC8D9;
  }

  .glossary-tag-county {
    background: rgba(255, 216, 77, 0.15);
    color: #FFD84D;
  }

  .glossary-tag-city {
    background: rgba(99, 177, 229, 0.15);
    color: #63B1E5;
  }

  .glossary-tag-concept {
    background: rgba(173, 181, 189, 0.15);
    color: #ADB5BD;
  }
}

.glossary-no-results {
  text-align: center;
  color: #6C757D;
  font-style: italic;
  padding: 2rem 1rem;
}

@media (prefers-color-scheme: dark) {
  .glossary-no-results {
    color: #ADB5BD;
  }
}

/* --------------------------------------------------------------------------
   24. Glossary filter responsive
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  .glossary-filter {
    gap: 0.35rem;
    padding: 0.5rem 0.75rem;
  }

  .glossary-filter-btn {
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
  }

  .glossary-tag {
    font-size: 0.55rem;
    padding: 0.1rem 0.4rem;
  }
}