/* ========================================
   Patterns Page
   ======================================== */

.page-subtitle {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 24px;
}

/* Controls */
.patterns-controls {
  margin-bottom: 24px;
}

.tab-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  width: fit-content;
}

.tab-btn {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  background: var(--bg-accent);
}

.tab-btn--active {
  background: var(--accent);
  color: #fff;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-input {
  padding: 8px 12px;
  font-size: 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s ease;
  width: 200px;
}

.filter-input:focus {
  border-color: var(--accent);
}

.filter-input::placeholder {
  color: var(--text-muted);
}

.filter-select {
  padding: 8px 12px;
  font-size: 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  appearance: auto;
}

.filter-select--sm {
  padding: 8px 10px;
  min-width: 70px;
}

.threshold-label {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Pair list */
.pair-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pair-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
}

.pair-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.pair-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.pair-item--expanded {
  border-color: var(--accent);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.pair-roots {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pair-root {
  font-family: var(--arabic-font);
  font-size: 22px;
  color: var(--text-arabic);
  direction: rtl;
  white-space: nowrap;
}

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

.pair-root--a:hover {
  text-decoration: underline;
}

.pair-root--b {
  color: var(--btn-easy);
  text-decoration: none;
}

.pair-root--b:hover {
  text-decoration: underline;
}

.pair-connector {
  color: var(--text-muted);
  font-size: 14px;
}

.pair-meanings {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.pair-meaning {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
}

.pair-meaning--a {
  color: var(--accent);
}

.pair-meaning--b {
  color: var(--btn-easy);
}

.pair-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

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

.pair-frequency {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-accent);
  padding: 4px 10px;
  border-radius: 12px;
  white-space: nowrap;
}

/* Pair detail expansion */
.pair-detail {
  padding: 16px;
  background: var(--bg-accent);
  border: 1px solid var(--accent);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  margin-bottom: 2px;
}

.pair-detail__loading {
  text-align: center;
  color: var(--text-muted);
  padding: 20px;
}

.pair-ayah {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.pair-ayah:last-child {
  border-bottom: none;
}

.pair-ayah__ref {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.pair-ayah__text {
  font-family: var(--arabic-font);
  font-size: var(--arabic-size);
  line-height: 2;
  direction: rtl;
  text-align: right;
  margin-bottom: 8px;
}

.pair-ayah__text .hl-a {
  color: var(--accent);
  font-weight: 700;
}

.pair-ayah__text .hl-b {
  color: var(--btn-easy);
  font-weight: 700;
}

.pair-ayah__translation {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
  padding: 16px 0;
}

.pagination__btn {
  padding: 8px 20px;
  font-size: 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.pagination__btn:hover:not(:disabled) {
  border-color: var(--accent);
}

.pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination__info {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Empty state */
.pair-list__empty {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
  font-size: 15px;
}

/* Surah Reference — Arabic calligraphy + localized name */
.surah-ref__arabic {
  font-family: var(--arabic-font, 'Amiri', serif);
  font-size: 15px;
  color: var(--text-arabic, #1a0e06);
  direction: rtl;
  unicode-bidi: isolate;
}

.surah-ref__name {
  font-size: 12px;
}

.surah-tag__arabic {
  font-family: var(--arabic-font, 'Amiri', serif);
  font-size: 14px;
  direction: rtl;
  unicode-bidi: isolate;
}

/* Section Tabs */
.section-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
}

.section-tab {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s ease;
}

.section-tab:hover {
  color: var(--text-primary);
}

.section-tab--active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.section-tab__count {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-accent);
  padding: 1px 7px;
  border-radius: 10px;
  margin-inline-start: 4px;
}

.section-tab--active .section-tab__count {
  background: var(--accent-light, var(--bg-highlight));
  color: var(--accent);
}

/* Cluster root */
.cluster-root {
  font-family: var(--arabic-font);
  font-size: 22px;
  color: var(--text-arabic);
  direction: rtl;
  white-space: nowrap;
  text-decoration: none;
}

.cluster-root:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* Similar Ayahs — Grouped View */
.similar-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 12px;
}

.similar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.similar-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--accent-light);
  color: var(--accent);
}

.similar-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--bg-accent);
}

.similar-shared {
  font-size: 12px;
  color: var(--text-muted);
}

.similar-text {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.similar-text__arabic {
  font-family: var(--arabic-font);
  font-size: var(--arabic-size);
  direction: rtl;
  text-align: right;
  line-height: 2;
  margin-bottom: 8px;
}

.similar-text__translation {
  font-size: 14px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
}

.similar-locations {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.similar-location {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--bg-accent);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.similar-location:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light, var(--bg-highlight));
}

/* Side-by-side comparison for partial matches */
.similar-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.similar-side {
  padding: 14px;
  background: var(--bg-accent);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.similar-side__ref {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  text-decoration: none;
  letter-spacing: 0.3px;
}

.similar-side__ref:hover {
  text-decoration: underline;
}

.similar-side__arabic {
  font-size: calc(var(--arabic-size) * 0.85);
  margin-bottom: 8px;
  line-height: 2;
}

.similar-side__translation {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.5;
}

/* Variant list for grouped comparisons */
.similar-variants {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.similar-variant {
  padding: 12px 14px;
  background: var(--bg-accent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 3px solid var(--border-ornament, var(--accent));
}

.similar-variant__ref {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 6px;
  text-decoration: none;
  letter-spacing: 0.3px;
}

.similar-variant__ref:hover {
  text-decoration: underline;
}

.similar-variant__arabic {
  font-family: var(--arabic-font);
  font-size: calc(var(--arabic-size, 28px) * 0.75);
  direction: rtl;
  text-align: right;
  line-height: 1.9;
  margin-bottom: 4px;
}

.similar-variant__translation {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.5;
}

/* Responsive */
@media (max-width: 640px) {
  .section-tabs {
    overflow-x: auto;
  }

  .section-tab {
    padding: 10px 16px;
    font-size: 13px;
    white-space: nowrap;
  }

  .similar-comparison {
    grid-template-columns: 1fr;
  }
  .pair-item {
    flex-wrap: wrap;
    gap: 8px;
  }

  .pair-meta {
    width: 100%;
    justify-content: space-between;
  }

  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-input {
    width: 100%;
  }

  .pair-root {
    font-size: 18px;
  }

  .pair-ayah__text {
    font-size: 22px;
  }
}