/* ============================================================
   BASE STYLES
   ============================================================ */
.carousel-section {
  padding: 2rem 2rem 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.carousel-section h1 {
  font-size: 2rem;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  text-align: center;
}

.carousel-subtitle {
  text-align: center;
  color: #666;
  margin-bottom: 1rem;
  font-size: 1rem;
}

/* ============================================================
   CAROUSEL STYLES
   ============================================================ */
.carousel-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
}

.carousel-viewport {
  flex: 1;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0.5rem 0.5rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-item {
  flex: 0 0 auto;
  width: 170px;
  text-align: center;
}

.carousel-item a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.carousel-item a:hover .carousel-thumb img {
  transform: scale(1.04);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

.carousel-thumb {
  width: 170px;
  height: 170px;
  overflow: hidden;
  border-radius: 4px;
  background: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.carousel-item-title {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  line-height: 1.3;
  color: #333;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 3.2em;
}

.carousel-btn {
  flex: 0 0 auto;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 50%;
  width: 42px;
  height: 42px;
  font-size: 1.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: background 0.2s ease;
  z-index: 2;
}

.carousel-btn:hover {
  background: #f5f5f5;
}

/* ============================================================
   BOOK CARDS
   ============================================================ */
.recherches-section {
  padding: 3rem 2rem 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.recherches-section h2 {
  font-size: 1.8rem;
  margin-bottom: 2rem;
  text-align: center;
}

.book-card {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid #e0e0e0;
}

.book-card__image {
  flex: 0 0 auto;
  width: 140px;
}

.book-card__image img {
  width: 140px;
  height: 190px;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.book-card__image img:hover {
  transform: scale(1.03);
}

.book-card__body {
  flex: 1;
}

.book-card__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0;
  color: #222;
}

.book-card__authors {
  font-size: 0.9rem;
  color: #666;
  font-style: italic;
  margin: 0;
}

.book-card__summary {
  font-size: 0.95rem;
  color: #444;
  line-height: 1.6;
  margin: 0.5rem 0 0;
}

.book-card__link {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.4rem 1rem;
  border: 1px solid #333;
  border-radius: 3px;
  font-size: 0.85rem;
  text-decoration: none;
  color: #333;
  transition: background 0.2s ease;
}

.book-card__link:hover {
  background: #333;
  color: #fff;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .carousel-section {
    padding: 1rem 0.75rem 1rem;
  }
  .carousel-section h1 {
    font-size: 1.5rem;
  }
  .carousel-item {
    width: 140px;
  }
  .carousel-thumb {
    width: 140px;
    height: 140px;
  }
  .carousel-item-title {
    font-size: 0.72rem;
  }
  .carousel-btn {
    width: 30px;
    height: 30px;
    font-size: 1.1rem;
  }
  .book-card {
    flex-direction: column;
    gap: 1rem;
  }
  .book-card__image {
    width: 100%;
    display: flex;
    justify-content: center;
  }
  .book-card__image img {
    width: 120px;
    height: 160px;
  }
  .recherches-section {
    padding: 1.5rem 0.75rem 2rem;
  }
  .recherches-section h2 {
    font-size: 1.4rem;
  }
}