:root {
      --font-mono: 'Courier New', monospace;
    }

    body {
      min-height: 100vh;
      background: var(--surface);
    }

    header.fixed {
      z-index: 10;
    }

    #drop-zone {
      border: 2px dashed var(--outline);
      border-radius: 1rem;
      padding: 3rem 2rem;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
      background: var(--surface-variant);
      margin: 1.5rem 0;
    }

    #drop-zone.drag-over {
      border-color: var(--primary);
      background: color-mix(in srgb, var(--primary) 10%, var(--surface-variant));
    }

    #font-preview-bar {
      display: none;
      align-items: center;
      gap: 1rem;
      padding: 1rem;
      background: var(--surface-variant);
      border-radius: 0.75rem;
      margin-bottom: 1rem;
      flex-wrap: wrap;
    }

    #font-preview-bar.visible {
      display: flex;
    }

    #preview-text-input {
      flex: 1;
      min-width: 180px;
      font-family: var(--loaded-font, inherit);
      font-size: 1.4rem;
      background: transparent;
      border: none;
      border-bottom: 2px solid var(--outline);
      color: var(--on-surface);
      padding: 0.25rem 0.5rem;
      outline: none;
    }

    #preview-text-input:focus {
      border-color: var(--primary);
    }

    #stats-row {
      display: none;
      gap: 1rem;
      flex-wrap: wrap;
      margin-bottom: 1rem;
    }

    #stats-row.visible {
      display: flex;
    }

    .stat-chip {
      display: flex;
      align-items: center;
      gap: 0.4rem;
      background: var(--secondary-container);
      color: var(--on-secondary-container);
      border-radius: 2rem;
      padding: 0.3rem 0.9rem;
      font-size: 0.85rem;
      font-weight: 600;
    }

    #search-filter {
      display: none;
      margin-bottom: 1rem;
      gap: 0.75rem;
      align-items: center;
      flex-wrap: wrap;
    }

    #search-filter.visible {
      display: flex;
    }

    #search-input {
      flex: 1;
      min-width: 200px;
    }

    #glyph-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
      gap: 0.75rem;
      margin-top: 1rem;
    }

    .glyph-card {
      background: var(--surface-variant);
      border-radius: 0.75rem;
      padding: 0.75rem 0.5rem 0.5rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.35rem;
      cursor: pointer;
      transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
      border: 1px solid transparent;
      position: relative;
    }

    .glyph-card:hover {
      background: color-mix(in srgb, var(--primary) 15%, var(--surface-variant));
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
      z-index: 2;
    }

    .glyph-card.selected {
      border-color: var(--primary);
      background: var(--primary-container);
    }

    .glyph-symbol {
      font-size: 2rem;
      line-height: 1;
      min-height: 2.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--loaded-font, sans-serif);
      color: var(--on-surface);
      user-select: none;
    }

    .glyph-name {
      font-size: 0.6rem;
      color: var(--on-surface-variant);
      text-align: center;
      word-break: break-all;
      max-width: 100%;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      width: 100%;
      padding: 0 2px;
    }

    .glyph-cp {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      color: var(--primary);
      text-align: center;
    }

    .glyph-utf8 {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      color: var(--on-surface-variant);
      text-align: center;
      opacity: 0.75;
    }

    /* Detail dialog */
    dialog article {
      min-width: 320px;
      max-width: 480px;
    }

    #detail-symbol {
      font-size: 6rem;
      line-height: 1;
      text-align: center;
      font-family: var(--loaded-font, sans-serif);
      margin: 0.5rem 0 1rem;
      color: var(--primary);
    }

    .detail-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0.4rem 0;
      border-bottom: 1px solid var(--outline-variant);
      gap: 1rem;
    }

    .detail-row:last-child {
      border-bottom: none;
    }

    .detail-label {
      font-size: 0.82rem;
      color: var(--on-surface-variant);
    }

    .detail-value {
      font-family: var(--font-mono);
      font-size: 0.85rem;
      color: var(--on-surface);
      font-weight: 600;
      word-break: break-all;
      text-align: right;
    }

    .copy-btn {
      cursor: pointer;
      opacity: 0.6;
      transition: opacity 0.15s;
    }

    .copy-btn:hover {
      opacity: 1;
    }

    #loading-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 100;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 1rem;
      color: white;
      font-size: 1.1rem;
    }

    #loading-overlay.visible {
      display: flex;
    }

    #no-results {
      display: none;
      text-align: center;
      padding: 3rem;
      color: var(--on-surface-variant);
    }

    #no-results.visible {
      display: block;
    }

    .block-header {
      grid-column: 1 / -1;
      margin-top: 1rem;
      padding: 0.4rem 0.75rem;
      background: var(--surface-container);
      border-radius: 0.5rem;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--on-surface-variant);
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }

    footer {
      text-align: center;
      padding: 2rem;
      color: var(--on-surface-variant);
      font-size: 0.8rem;
      opacity: 0.6;
    }

    #theme-toggle {
      cursor: pointer;
    }

    /* ── Tabs ── */
    .tab-content {
      display: none;
    }

    .tab-content.active {
      display: block;
    }

    /* ── Compare ── */
    .compare-drop-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
      margin: 1.5rem 0 1rem;
    }

    @media (max-width: 600px) {
      .compare-drop-row {
        grid-template-columns: 1fr;
      }
    }

    .cmp-drop {
      border: 2px dashed var(--outline);
      border-radius: 1rem;
      padding: 1.5rem 1rem;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
      background: var(--surface-variant);
      min-height: 130px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 0.4rem;
    }

    .cmp-drop.drag-over {
      border-color: var(--primary);
      background: color-mix(in srgb, var(--primary) 10%, var(--surface-variant));
    }

    .cmp-drop.loaded {
      border-style: solid;
    }

    .cmp-drop-a.loaded {
      border-color: #4fc3f7;
    }

    .cmp-drop-b.loaded {
      border-color: #f48fb1;
    }

    .cmp-drop-a i {
      color: #4fc3f7;
    }

    .cmp-drop-b i {
      color: #f48fb1;
    }

    .cmp-font-name {
      font-weight: 700;
      font-size: 0.9rem;
      word-break: break-all;
    }

    .cmp-font-count {
      font-size: 0.78rem;
      color: var(--on-surface-variant);
    }

    .cmp-stats-bar {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
      justify-content: center;
      margin: 0.5rem 0 1rem;
    }

    .cmp-chip-a {
      background: color-mix(in srgb, #4fc3f7 20%, var(--surface-variant));
      color: #4fc3f7;
      border: 1px solid #4fc3f755;
    }

    .cmp-chip-b {
      background: color-mix(in srgb, #f48fb1 20%, var(--surface-variant));
      color: #f48fb1;
      border: 1px solid #f48fb155;
    }

    .cmp-chip-ab {
      background: color-mix(in srgb, #a5d6a7 20%, var(--surface-variant));
      color: #a5d6a7;
      border: 1px solid #a5d6a755;
    }

    /* Compare filter bar */
    #cmp-filter-bar {
      display: none;
      gap: 0.75rem;
      align-items: center;
      flex-wrap: wrap;
      margin-bottom: 1rem;
    }

    #cmp-filter-bar.visible {
      display: flex;
    }

    /* Compare section tabs */
    .cmp-section-tabs {
      display: flex;
      gap: 0.5rem;
      margin-bottom: 1rem;
      flex-wrap: wrap;
    }

    .cmp-section-tab {
      padding: 0.35rem 1rem;
      border-radius: 2rem;
      cursor: pointer;
      font-size: 0.85rem;
      font-weight: 600;
      border: 2px solid transparent;
      transition: all 0.15s;
      background: var(--surface-variant);
    }

    .cmp-section-tab.active-a {
      border-color: #4fc3f7;
      color: #4fc3f7;
      background: color-mix(in srgb, #4fc3f7 12%, var(--surface-variant));
    }

    .cmp-section-tab.active-b {
      border-color: #f48fb1;
      color: #f48fb1;
      background: color-mix(in srgb, #f48fb1 12%, var(--surface-variant));
    }

    .cmp-section-tab.active-ab {
      border-color: #a5d6a7;
      color: #a5d6a7;
      background: color-mix(in srgb, #a5d6a7 12%, var(--surface-variant));
    }

    /* Compare glyph cards — colour-coded borders */
    .glyph-card.card-a {
      border-color: #4fc3f755;
    }

    .glyph-card.card-b {
      border-color: #f48fb155;
    }

    .glyph-card.card-ab {
      border-color: #a5d6a755;
    }

    .glyph-card.card-a:hover {
      border-color: #4fc3f7;
    }

    .glyph-card.card-b:hover {
      border-color: #f48fb1;
    }

    .glyph-card.card-ab:hover {
      border-color: #a5d6a7;
    }

    /* side-by-side symbol in shared cards */
    .glyph-symbol-pair {
      display: flex;
      gap: 0.25rem;
      align-items: center;
      justify-content: center;
      min-height: 2.2rem;
    }

    .sym-fa {
      font-size: 1.5rem;
      line-height: 1;
    }

    .sym-sep {
      font-size: 0.7rem;
      color: var(--on-surface-variant);
      opacity: 0.5;
    }

    #cmp-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
      gap: 0.75rem;
      margin-top: 0.5rem;
    }

    #cmp-no-results {
      display: none;
      text-align: center;
      padding: 3rem;
      color: var(--on-surface-variant);
    }

    #cmp-no-results.visible {
      display: block;
    }

    #cmp-pagination {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 0.5rem;
      margin: 1.5rem 0 0.5rem;
      flex-wrap: wrap;
    }


    /* Back to top */
    #back-to-top {
      position: fixed;
      bottom: 1.5rem;
      right: 1.5rem;
      z-index: 50;
      width: 3rem;
      height: 3rem;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: var(--on-primary);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
      cursor: pointer;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s, transform 0.25s;
      transform: translateY(8px);
      border: none;
    }

    #back-to-top.visible {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }

    #back-to-top:hover {
      filter: brightness(1.1);
    }

    #cmp-overlap-ranges {
      margin: 1rem 0 0.5rem;
      border: 1px solid var(--outline-variant, rgba(128, 128, 128, 0.3));
      border-radius: 0.75rem;
      padding: 0.75rem 1rem;
      background: var(--surface-container, rgba(128, 128, 128, 0.07));
    }

    .overlap-ranges-header {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 0.6rem;
      color: var(--on-surface-variant);
    }

    .overlap-ranges-header i {
      font-size: 1rem;
      color: var(--primary, #80cbc4);
    }

    .overlap-range-count {
      font-weight: 400;
      opacity: 0.7;
      font-size: 0.8rem;
    }

    .overlap-ranges-header button {
      margin-left: auto;
    }

    .ranges-list {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4rem;
    }

    .range-chip {
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
      background: var(--secondary-container, rgba(128, 128, 128, 0.15));
      color: var(--on-secondary-container, inherit);
      border-radius: 999px;
      padding: 0.18rem 0.65rem;
      font-size: 0.78rem;
      font-family: monospace;
      cursor: default;
      border: 1px solid transparent;
      transition: border-color 0.15s;
    }

    .range-chip:hover {
      border-color: var(--primary, #80cbc4);
    }

    .range-chip .chip-count {
      opacity: 0.6;
      font-size: 0.7rem;
    }