/* ==========================================================================
   Carousel 3D Coverflow & Book Detail View (conforme à screen1.png)
   ========================================================================== */

.carousel-section {
  position: relative;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 24px clamp(12px, 2.5vw, 36px) 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  box-sizing: border-box;
  z-index: 2;
}

/* 3D Stage Container */
.carousel-3d-stage {
  position: relative;
  width: 100%;
  max-width: 1400px;
  height: 480px;
  perspective: 1400px;
  perspective-origin: 50% 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  user-select: none;
}

.carousel-track,
.carousel-3d-track {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Individual 3D Book Card */
.carousel-card {
  position: absolute;
  width: 290px;
  height: 420px;
  border-radius: 24px;
  background-color: #1a2233;
  box-shadow: 0 25px 50px -12px rgba(14, 34, 70, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.3, 1),
    opacity 0.6s cubic-bezier(0.25, 1, 0.3, 1),
    filter 0.6s cubic-bezier(0.25, 1, 0.3, 1),
    box-shadow 0.4s ease;
  overflow: hidden;
  will-change: transform, opacity;
}

/* Book Cover Image inside Card */
.carousel-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 24px;
  transition: transform 0.5s ease;
}

/* Book Card Overlay Gradient for text readability */
.carousel-card-overlay {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.15) 0%, transparent 40%, rgba(10, 20, 40, 0.85) 85%, rgba(6, 14, 30, 0.95) 100%);
  pointer-events: none;
}

/* Badges on Book Covers (screen1.png) */
.carousel-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  bottom: auto;
  left: auto;
  background: rgba(14, 34, 70, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
  z-index: 3;
}

.carousel-badge.coup-de-coeur {
  background: var(--primary-blue);
}

.carousel-badge.classique {
  background: #6366F1;
}

.carousel-badge.bestseller {
  background: #FF7A00;
}

/* Book Cover Info (Bottom) */
.carousel-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 22px 20px 20px;
  color: #FFFFFF;
  z-index: 3;
}

.carousel-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  color: #FFFFFF;
  margin-bottom: 4px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.carousel-card-author {
  font-size: 0.86rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 3D Perspective States */
.carousel-card.active {
  transform: translateX(0) translateZ(120px) rotateY(0deg) scale(1.08);
  z-index: 10;
  opacity: 1;
  filter: none;
  box-shadow: 0 35px 70px -15px rgba(14, 34, 70, 0.55), 0 0 30px var(--primary-blue-glow);
}

.carousel-card.prev-1 {
  transform: translateX(-240px) translateZ(0) rotateY(28deg) scale(0.92);
  z-index: 8;
  opacity: 0.92;
  filter: brightness(0.88);
}

.carousel-card.next-1 {
  transform: translateX(240px) translateZ(0) rotateY(-28deg) scale(0.92);
  z-index: 8;
  opacity: 0.92;
  filter: brightness(0.88);
}

.carousel-card.prev-2 {
  transform: translateX(-430px) translateZ(-100px) rotateY(38deg) scale(0.82);
  z-index: 6;
  opacity: 0.7;
  filter: brightness(0.72);
}

.carousel-card.next-2 {
  transform: translateX(430px) translateZ(-100px) rotateY(-38deg) scale(0.82);
  z-index: 6;
  opacity: 0.7;
  filter: brightness(0.72);
}

.carousel-card.prev-3 {
  transform: translateX(-580px) translateZ(-200px) rotateY(45deg) scale(0.72);
  z-index: 4;
  opacity: 0.4;
  filter: brightness(0.55);
}

.carousel-card.next-3 {
  transform: translateX(580px) translateZ(-200px) rotateY(-45deg) scale(0.72);
  z-index: 4;
  opacity: 0.4;
  filter: brightness(0.55);
}

/* États masqués latéraux : glissement naturel continu sans traverser le centre */
.carousel-card.hidden,
.carousel-card.hidden-next,
.carousel-card.hidden-prev {
  opacity: 0 !important;
  pointer-events: none !important;
  z-index: 1 !important;
  filter: brightness(0.4);
}

.carousel-card.hidden {
  transform: translateX(0) translateZ(-350px) scale(0.5);
}

.carousel-card.hidden-next {
  transform: translateX(760px) translateZ(-260px) rotateY(-50deg) scale(0.65);
}

.carousel-card.hidden-prev {
  transform: translateX(-760px) translateZ(-260px) rotateY(50deg) scale(0.65);
}

/* Carousel Arrow Controls (Bouton Gauche & Bouton Droite) */
.carousel-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  direction: ltr !important;
  flex-direction: row !important;
  justify-content: space-between;
  padding: 0 16px;
  pointer-events: none;
  z-index: 30;
  width: 100%;
}

html[dir="rtl"] .carousel-controls,
html.lang-arabic .carousel-controls,
body.lang-arabic .carousel-controls {
  direction: ltr !important;
  flex-direction: row !important;
}

html[dir="rtl"] .carousel-3d-stage,
html.lang-arabic .carousel-3d-stage,
body.lang-arabic .carousel-3d-stage {
  direction: ltr !important;
}

html[dir="rtl"] #carouselPrevBtn,
.carousel-btn.prev {
  order: 1 !important;
}

html[dir="rtl"] #carouselNextBtn,
.carousel-btn.next {
  order: 2 !important;
}

.carousel-btn,
.carousel-nav-arrow {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #FFFFFF;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid rgba(226, 232, 240, 0.95);
  box-shadow: 0 8px 24px rgba(14, 34, 70, 0.16), 0 2px 6px rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue, #1E66FF);
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  outline: none;
}

.carousel-btn:hover,
.carousel-nav-arrow:hover {
  background: var(--primary-blue, #1E66FF);
  color: #FFFFFF;
  border-color: var(--primary-blue, #1E66FF);
  transform: scale(1.12);
  box-shadow: 0 10px 28px rgba(30, 102, 255, 0.38);
}

.carousel-btn:active,
.carousel-nav-arrow:active {
  transform: scale(0.94);
}

/* ==========================================================================
   Book Detail Card (Under the Carousel, strictly matching screen1.png)
   ========================================================================== */

.book-detail-card {
  width: 100%;
  max-width: 680px;
  margin: -10px auto 35px;
  background: #FFFFFF;
  border-radius: var(--radius-modal);
  padding: 26px 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226, 232, 240, 0.7);
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 5;
  box-sizing: border-box;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
  animation: fadeInDetail 0.4s ease-out;
}

@keyframes fadeInDetail {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Detail Card Header (Category + Rating Badge) */
.detail-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.detail-category-pill {
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary-blue);
  background: var(--primary-blue-light);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

.detail-rating-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: #D97706;
  background: #FFFBEB;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid #FDE68A;
}

.detail-rating-pill svg {
  color: #F59E0B;
}

/* Detail Title & Subtitle */
.detail-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--dark-navy);
  margin-top: -4px;
}

.detail-subtitle {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary-blue);
  line-height: 1.4;
  margin-top: -10px;
}

/* Format Extrait Row (Court vs Long with liquid indicator) */
.format-extract-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 6px 0;
}

.format-extract-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary-blue);
}

.format-pills-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.format-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

/* Active Format Pill (Blue with dot/liquid) */
.format-pill-btn.active {
  background: var(--primary-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--primary-blue-glow);
}

.format-pill-btn.outline {
  background: #FFFFFF;
  color: var(--primary-blue);
  border: 1.5px solid var(--primary-blue-glow);
}

.format-pill-btn.outline:hover {
  background: var(--primary-blue-light);
  border-color: var(--primary-blue);
}

.glass-mini-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
  vertical-align: middle;
}

.status-dot-amber {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #F59E0B;
  display: inline-block;
}

/* Alert Notification in Detail Card (screen1.png) */
.detail-alert-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--alert-amber-bg);
  border: 1px solid var(--alert-amber-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.86rem;
  color: var(--alert-amber-text);
  line-height: 1.45;
}

.detail-alert-box svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: #D97706;
}

.detail-alert-box strong {
  font-weight: 700;
}

/* Action CTA Buttons (Audio & Texte in screen1.png) */
.detail-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 4px;
}

.btn-detail-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, #FF8A00 0%, #E56700 100%) !important;
  color: #FFFFFF !important;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0px 8px 20px rgba(255, 122, 0, 0.35) !important;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn-detail-action:hover {
  background: linear-gradient(135deg, #FF7A00 0%, #D95F00 100%) !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 122, 0, 0.45) !important;
}

.btn-detail-action:active {
  transform: translateY(0);
}

/* Responsive adjustments for 3D Carousel */
@media (max-width: 992px) {
  .carousel-3d-stage {
    height: 420px;
  }

  .carousel-card {
    width: 250px;
    height: 360px;
  }

  .carousel-card.prev-1 {
    transform: translateX(-180px) rotateY(26deg) scale(0.9);
  }

  .carousel-card.next-1 {
    transform: translateX(180px) rotateY(-26deg) scale(0.9);
  }

  .carousel-card.prev-2,
  .carousel-card.next-2 {
    opacity: 0;
    pointer-events: none;
  }
}

@media (max-width: 640px) {
  .carousel-3d-stage {
    height: 360px;
  }

  .carousel-card {
    width: 210px;
    height: 310px;
  }

  .carousel-card.prev-1 {
    transform: translateX(-120px) rotateY(20deg) scale(0.85);
    opacity: 0.6;
  }

  .carousel-card.next-1 {
    transform: translateX(120px) rotateY(-20deg) scale(0.85);
    opacity: 0.6;
  }

  .book-detail-card {
    padding: 20px 18px;
  }

  .detail-title {
    font-size: 1.2rem;
  }

  .detail-actions-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}