.bestsellers {
  background: #fff;
  padding: var(--section-pad-y, clamp(1.35rem, 3.15vw, 2.35rem)) 0;
  border-top: var(--divider, 1px solid #e8e6e1);
}

/* No top divider above these sections (per design) */
.bestsellers[aria-labelledby="bestsellers-heading"],
.bestsellers[aria-labelledby="new-arrivals-heading"],
.bestsellers[aria-labelledby="stationery-heading"],
.bestsellers[aria-labelledby="coming-soon-heading"] {
  border-top: none;
}

/* Tighter top when stacked after the quick-icons band (avoids double “air”) */
.quick-icons + .bestsellers {
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

.bestsellers__inner {
  max-width: var(--layout-max, 1320px);
  margin: 0 auto;
  padding: 0 var(--layout-gutter, clamp(0.9375rem, 2.85vw, 1.875rem));
}

.bestsellers__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
  margin-bottom: clamp(0.95rem, 2vw, 1.35rem);
  padding-bottom: 0.65rem;
  border-bottom: var(--divider-soft, 1px solid #e5e2dc);
}

.bestsellers__title {
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-size: clamp(1.85rem, 3.5vw, 2.35rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #1a1a1a;
}

#bestsellers-heading,
#new-arrivals-heading,
#mind-books-heading,
#stationery-heading,
#special-offers-heading {
  font-style: italic;
}

#coming-soon-heading {
  font-style: italic;
  font-weight: 700;
}

.bestsellers__view-all {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #c41e3a;
  cursor: pointer;
  user-select: none;
}

.bestsellers__view-all-arrow {
  display: inline-block;
}

/* Arrows sit outside the viewport; appear when hovering the whole .bestsellers section */
.bestsellers__carousel {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  gap: clamp(0.3rem, 0.85vw, 0.6rem);
}

.bestsellers__nav {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid #e0ddd6;
  border-radius: 50%;
  background: #fff;
  color: #1a1a1a;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.28s ease,
    visibility 0.28s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.bestsellers:hover .bestsellers__nav {
  opacity: 1;
  visibility: visible;
}

/* Touch / coarse pointers: no hover — keep controls visible */
@media (hover: none) {
  .bestsellers__nav {
    opacity: 1;
    visibility: visible;
  }
}

.bestsellers__nav:hover:not(:disabled) {
  color: #c41e3a;
  border-color: #c41e3a;
  background: #fffaf9;
  box-shadow: 0 4px 16px rgba(196, 30, 58, 0.12);
}

.bestsellers__nav:focus-visible {
  opacity: 1;
  visibility: visible;
  outline: 2px solid #c41e3a;
  outline-offset: 2px;
}

.bestsellers__nav:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  pointer-events: none;
}

.bestsellers:hover .bestsellers__nav:disabled {
  opacity: 0.3;
  visibility: visible;
}

.bestsellers__viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  /* Vertical room so cover scale/shadow isn’t clipped */
  padding-block: 10px;
  container-type: inline-size;
  container-name: bestsellers-carousel;
  --bs-gap: clamp(0.75rem, 1.65cqi, 1.35rem);
  --bs-per-view: 6;
}

@media (max-width: 1100px) {
  .bestsellers__viewport {
    --bs-per-view: 3;
  }
}

@media (max-width: 600px) {
  .bestsellers__viewport {
    --bs-per-view: 2;
  }
}

@media (max-width: 380px) {
  .bestsellers__viewport {
    --bs-per-view: 1;
  }
}

.bestsellers__track {
  --bs-slide-duration: 0.75s;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: stretch;
  gap: var(--bs-gap);
  width: max-content;
  transition: transform var(--bs-slide-duration) cubic-bezier(0.33, 1, 0.3, 1);
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Skip motion when snapping layout (resize, first measure) — arrow clicks use transition above */
.bestsellers__track.bestsellers__track--instant {
  transition: none !important;
}

.bestsellers__track .book-card {
  flex: 0 0 calc((100cqi - (var(--bs-per-view) - 1) * var(--bs-gap)) / var(--bs-per-view));
  min-width: 0;
  box-sizing: border-box;
}

/* Pop runs on the cover so it reads clearly; inset glow stays inside (no overflow clip) */
@keyframes book-card-cover-pop {
  0% {
    filter: brightness(1);
    box-shadow:
      0 1px 0 rgba(0, 0, 0, 0.06),
      inset 0 0 0 0 rgba(196, 30, 58, 0);
    transform: scale(1);
  }
  40% {
    filter: brightness(1.07);
    box-shadow:
      0 12px 28px rgba(0, 0, 0, 0.14),
      inset 0 0 0 2px rgba(196, 30, 58, 0.45);
    transform: scale(1.05);
  }
  100% {
    filter: brightness(1);
    box-shadow:
      0 1px 0 rgba(0, 0, 0, 0.06),
      inset 0 0 0 0 rgba(196, 30, 58, 0);
    transform: scale(1);
  }
}

.book-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
  contain: layout style paint;
  isolation: isolate;
}

.book-card.book-card--pop {
  z-index: 4;
}

.book-card.book-card--pop .book-card__cover {
  transform-origin: bottom center;
  transition: none;
  animation: book-card-cover-pop 0.62s cubic-bezier(0.33, 1.1, 0.45, 1) both;
  will-change: transform, filter;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.book-card__link {
  position: absolute;
  inset: 0;
  z-index: 1;
  text-decoration: none;
}

.book-card__link:focus-visible {
  outline: 2px solid #c41e3a;
  outline-offset: 2px;
  border-radius: 2px;
}

.book-card__cover {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  pointer-events: none;
  width: 100%;
  aspect-ratio: 600 / 770;
  background: #f0eeeb;
  overflow: hidden;
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  /* filter is GPU-composited; box-shadow was CPU-repainted every frame */
  transition:
    filter 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.book-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transform: scale(1);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.book-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: stretch;
  padding: 0.65rem;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(26, 26, 26, 0) 35%, rgba(26, 26, 26, 0.65) 100%);
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.book-card__actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0.45rem;
  width: 100%;
  pointer-events: auto;
}

.book-card__cta {
  position: relative;
  z-index: 1;
  flex: 1 1 auto;
  min-width: 0;
  width: auto;
  padding: 0.55rem 0.75rem;
  border: none;
  border-radius: 2px;
  background: #be182a;
  color: #fff;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  pointer-events: auto;
  transform: translateY(10px);
  opacity: 0;
  /* only transform + opacity — both composited, zero repaints */
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 4px 14px rgba(196, 30, 58, 0.35);
}

.book-card__wish {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  width: 2.5rem;
  margin: 0;
  padding: 0;
  border: 2px solid #fff;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.95);
  color: #c41e3a;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  pointer-events: auto;
  transform: translateY(10px);
  opacity: 0;
  /* only transform + opacity — both composited, zero repaints */
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.book-card__wish:hover {
  background: #fff;
  color: #a9182e;
}

.book-card__wish:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
  opacity: 1;
  transform: translateY(0);
}

.book-card__wish[aria-pressed="true"] {
  background: #fff;
  color: #c41e3a;
}

.book-card__cta:hover {
  background: #a2141f;
}

.book-card__cta:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
  opacity: 1;
  transform: translateY(0);
}

.book-card:hover .book-card__cover,
.book-card:focus-within .book-card__cover {
  filter: drop-shadow(0 10px 22px rgba(0, 0, 0, 0.13));
  transform: translateY(-4px);
}

.book-card:hover .book-card__cover img,
.book-card:focus-within .book-card__cover img {
  transform: scale(1.05);
}

.book-card:hover .book-card__overlay,
.book-card:focus-within .book-card__overlay {
  opacity: 1;
}

.book-card:hover .book-card__cta,
.book-card:focus-within .book-card__cta,
.book-card:hover .book-card__wish,
.book-card:focus-within .book-card__wish {
  opacity: 1;
  transform: translateY(0);
}

.book-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-height: 0;
  padding-top: 0.7rem;
}

.book-card__title {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  color: #1a1a1a;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.book-card__author {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 400;
  color: #5c5c5c;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}

.book-card__price {
  margin: 0;
  margin-top: auto;
  padding-top: 0.4rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: #1a1a1a;
  letter-spacing: 0.02em;
}

.book-card__currency {
  font-weight: 600;
  font-size: 0.75rem;
  color: #6b6b6b;
  margin-right: 0.2rem;
}

/* Sale / special-offer price layout */
.book-card__price--sale {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.5rem;
}

.book-card__was {
  font-size: 0.8125rem;
  font-weight: 400;
  color: #999;
  text-decoration: line-through;
}

.book-card__was .book-card__currency {
  color: #bbb;
}

.book-card__now {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #c41e3a;
}

.book-card__now .book-card__currency {
  color: #c41e3a;
  opacity: 0.8;
}

/* Discount badge on cover */
.book-card__sale-badge {
  position: absolute;
  top: 0.5rem;
  left: 0;
  z-index: 3;
  padding: 0.2rem 0.45rem;
  border-radius: 0 2px 2px 0;
  background: #c41e3a;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
  pointer-events: none;
}

.book-card--in-cart .book-card__overlay {
  padding-bottom: calc(0.65rem + 1.4rem);
}

/* Added-to-cart label on cover */
.book-card__in-cart-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
  padding: 0.35rem 0.5rem;
  background: rgba(22, 163, 74, 0.93);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  pointer-events: none;
}

/* View-in-cart button variant */
.book-card__cta--in-cart {
  background: #16a34a;
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.35);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.book-card__cta--in-cart:hover {
  background: #15803d;
}

/* ── Out-of-stock tape ─────────────────────────────── */
.book-card__oos-tape {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-32deg);
  width: 160%;
  padding: 0.42rem 0;
  background: rgba(185, 10, 30, 0.93);
  color: #fff;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: clamp(0.55rem, 1.4vw, 0.72rem);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-align: center;
  pointer-events: none;
  z-index: 5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.book-card__cta--oos {
  background: #9ca3af;
  cursor: not-allowed;
  opacity: 0.85;
}

.book-card__cta--oos:hover {
  background: #9ca3af;
}

.book-card__cta--request {
  background: #b90a1e;
  box-shadow: 0 4px 14px rgba(185, 10, 30, 0.32);
}

.book-card__cta--request:hover {
  background: #970819;
}

/* Dark mode */
[data-theme="dark"] .book-card__was {
  color: #6b6b6b;
}

[data-theme="dark"] .book-card__was .book-card__currency {
  color: #555;
}

@media (prefers-reduced-motion: reduce) {
  .bestsellers__track {
    transition-duration: 0.01ms;
  }

  .book-card.book-card--pop .book-card__cover {
    animation: none;
  }

  .bestsellers__nav {
    transition-duration: 0.01ms;
  }

  .book-card__cover,
  .book-card__cover img,
  .book-card__overlay,
  .book-card__cta,
  .book-card__wish {
    transition-duration: 0.01ms;
  }

  .book-card:hover .book-card__cover,
  .book-card:focus-within .book-card__cover {
    transform: none;
    filter: none;
  }

  .book-card:hover .book-card__cover img,
  .book-card:focus-within .book-card__cover img {
    transform: none;
  }
}

/* Pre-order button in card body (coming-soon page) — always visible */
.book-card__cta--preorder {
  display: block;
  width: 100%;
  margin-top: .6rem;
  opacity: 1;
  transform: none;
  transition: background .15s, box-shadow .15s;
}
.book-card__cta--preorder:hover {
  background: #a0162a;
  box-shadow: 0 4px 14px rgba(196, 30, 58, .45);
}