/* Reading Library — page-specific (no duplicate of consolidated skip-link / scrollbar-hide) */

.pattern-dots {
  background-image: radial-gradient(circle, #e5e0d8 1px, transparent 1px);
  background-size: 24px 24px;
}

.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-in-up {
    opacity: 1;
    transform: translateY(0);
  }
  .book-card.card-enter {
    opacity: 1;
    transform: none;
  }
  .filter-btn {
    transition: none;
  }
  #emptyState:not(.hidden) {
    animation: none;
  }
}

#filterBar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229, 224, 216, 0.6);
  transition: box-shadow 0.3s ease;
}
#filterBar.scrolled {
  box-shadow: 0 4px 24px rgba(26, 58, 82, 0.06);
}

/* Filter tabs — wrap on desktop, scroll on mobile */
#filterTabs {
  position: relative;
  padding: 0.25rem 0;
}

@media (max-width: 640px) {
  /* Horizontal-scroll pills on phones */
  #filterTabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    margin-left: -1rem;
    margin-right: -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    scrollbar-width: none;
  }
  #filterTabs::-webkit-scrollbar {
    display: none;
  }
  #filterTabs .filter-btn {
    scroll-snap-align: start;
    flex-shrink: 0;
    font-size: 0.75rem;
    padding: 0.4375rem 0.75rem;
  }
  /* Touch targets */
  #filterBar input,
  #filterBar select,
  #filterBar button {
    min-height: 44px;
  }
  /* Full-width search */
  #bookSearch {
    width: 100%;
    font-size: 16px; /* prevents iOS zoom on focus */
  }
  /* Full-width sort */
  .sort-field {
    width: 100%;
  }
  .sort-field select {
    width: 100%;
  }
  /* Center count */
  #bookCount {
    text-align: center;
    white-space: normal;
  }
}

@media (max-width: 380px) {
  #filterTabs .filter-btn {
    padding: 0.375rem 0.5rem;
    font-size: 0.6875rem;
  }
  .filter-count {
    display: none;
  }
}

#backToTop {
  opacity: 0;
  pointer-events: none;
}
#backToTop.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ── Filter pills ── */
.filter-btn {
  background: #fff;
  color: rgba(44, 44, 44, 0.6);
  border-color: rgba(229, 224, 216, 0.8);
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  position: relative;
}
.filter-btn:hover {
  border-color: rgba(154, 123, 79, 0.3);
  color: #9a7b4f;
  background: rgba(154, 123, 79, 0.04);
}
.filter-btn[aria-pressed="true"] {
  background: var(--flc-navy, #1a3a52);
  color: #fff;
  border-color: var(--flc-navy, #1a3a52);
  font-weight: 600;
  box-shadow: 0 1px 6px rgba(26, 58, 82, 0.12);
}
.filter-count {
  background: rgba(245, 241, 232, 0.8);
  color: rgba(44, 44, 44, 0.45);
  font-size: 0.625rem;
  min-width: 1.125rem;
  text-align: center;
}
.filter-btn[aria-pressed="true"] .filter-count {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

/* Book cards — theme accent via CSS variable */
.book-card {
  --accent: #9a7b4f;
  border: 1px solid #e8e6e1;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent) 3%, white),
      color-mix(in srgb, var(--accent) 8%, white)
    );
}

/* Staggered card entrance animation */
.book-card.card-enter {
  opacity: 0;
  transform: translateY(12px);
}
.book-card.card-visible {
  opacity: 1;
  transform: translateY(0);
}
.book-card[data-theme="Holiness of God"] {
  --accent: #9a7b4f;
}
.book-card[data-theme="Discipleship"] {
  --accent: #1a3a52;
}
.book-card[data-theme="Spiritual Formation"] {
  --accent: #5e4f7a;
}
.book-card[data-theme="Christian Leadership"] {
  --accent: #2a537a;
}
.book-card[data-theme="Church & Mission"] {
  --accent: #3a6b50;
}
.book-card[data-theme="Sin & Repentance"] {
  --accent: #7a3535;
}
.book-card[data-theme="Wholeness & Care"] {
  --accent: #3a6b6b;
}

.book-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 58, 82, 0.08);
}
.book-card:focus-visible {
  outline: 2px solid #9a7b4f;
  outline-offset: 2px;
}
.book-card.expanded {
  border-color: #9a7b4f;
  box-shadow: 0 12px 32px rgba(26, 58, 82, 0.1);
}

.theme-badge {
  background: color-mix(in srgb, var(--accent) 12%, white);
  color: var(--accent);
}

.book-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.2s ease;
  opacity: 0;
}
.book-details.open {
  max-height: 600px;
  opacity: 1;
}

.expand-icon {
  transition: transform 0.2s ease;
  color: rgba(44, 44, 44, 0.3);
}
.expand-icon.rotated {
  transform: rotate(180deg);
}

.book-view-btn {
  background: #1a3a52;
  color: #fff;
}
.book-view-btn:hover {
  background: #9a7b4f;
}

#bookGrid mark {
  background: rgba(154, 123, 79, 0.3);
  border-radius: 2px;
  padding: 0 2px;
}

.foundational-badge {
  background: rgba(154, 123, 79, 0.12);
  color: #9a7b4f;
}

.book-card__meta {
  color: rgba(44, 44, 44, 0.55);
}

.book-card__summary {
  color: rgba(44, 44, 44, 0.8);
}

/* ── Search suggestions dropdown ── */
.suggestion-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.875rem;
  cursor: pointer;
  transition: background 0.12s ease;
}
.suggestion-item:hover,
.suggestion-item:focus {
  background: #fafaf8;
}
.suggestion-item + .suggestion-item {
  border-top: 1px solid rgba(229, 224, 216, 0.35);
}
.suggestion-type {
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(44, 44, 44, 0.35);
  flex-shrink: 0;
  width: 2.75rem;
}
.suggestion-text {
  font-size: 0.8125rem;
  color: #1a3a52;
  font-weight: 500;
}
.suggestion-text mark {
  background: rgba(154, 123, 79, 0.2);
  border-radius: 2px;
  padding: 0 1px;
}

/* ── Search result badge ── */
#searchResultBadge:not(.hidden) {
  animation: badgePop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes badgePop {
  0% { transform: translateY(-50%) scale(0.85); opacity: 0; }
  100% { transform: translateY(-50%) scale(1); opacity: 1; }
}

/* ── Clear filters ── */
#clearFilters:not(.hidden) {
  display: inline-flex;
}

/* ── Empty state ── */
#emptyState:not(.hidden) {
  animation: emptyFadeIn 0.35s ease;
}
@keyframes emptyFadeIn {
  0% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}