/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 500px;
  overflow: hidden;
  background-color: #000;
}

.hero__slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center center;
  display: flex;
  align-items: center;
  color: white;
  padding-block: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%);
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.8s ease, visibility 0.8s;
  z-index: 1;
}

.hero__slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  z-index: 2;
}

.hero__slide.is-exiting {
  transform: translateX(-100%);
  opacity: 0;
  z-index: 1;
}

.hero__content {
  max-width: 600px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 3;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: white;
}

.mobile-only-title {
  display: none !important;
}

@media (max-width: 991px) {
  .desktop-only-title {
    display: none !important;
  }

  .mobile-only-title {
    display: block !important;
    width: 190px;
  }
}

.hero__description {
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0.9;
  max-width: 480px;
  color: white;

}

.hero__slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(180, 180, 180, 0.8);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: var(--clr-primary, #c90927);
  width: 25px;
  border-radius: 5px;
}

/* ============================================================
   SEARCH
   ============================================================ */
.search-box {
  position: relative;
  background: white;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: stretch;
  gap: 15px;
  max-width: 900px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
  border: 1px solid #eee;
}

.search-box__field {
  display: flex;
  align-items: center;
  flex: 1;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  background: white;
  padding-left: 12px;
  transition: border-color 0.2s ease;
}

.search-box__field:focus-within {
  border-color: var(--clr-primary);
}

.search-box__icon {
  flex: 0 0 auto;
  color: #888;
}

.search-box input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 12px 10px;
  font-size: 0.95rem;
  outline: none;
  color: #444;
  width: 100%;
}

.search-box input::placeholder {
  color: #aaa;
}

.search-box .btn-search {
  background: var(--clr-primary);
  color: white;
  border: none;
  padding: 0 2.5rem;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  text-transform: uppercase;
  transition: background 0.3s ease;
  white-space: nowrap;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-box .btn-search:hover {
  background: #b00217;
}

/* ============================================================
   MONTHLY RECOMMENDATIONS
   ============================================================ */
.monthly-recs {
  padding-block: 3rem 1.5rem;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--clr-primary);
  margin-bottom: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Left-align for monthly section; founder section stays centered */
.monthly-recs .section-title {
  text-align: left;
}

.founder-section .section-title {
  text-align: left;
}

.recs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
}

.recs-sidebar {
  border-right: 1px solid #eee;
}

.month-nav {
  display: flex;
  flex-direction: column;
}

.month-item {
  padding: 0.9rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #666;
  border-left: 4px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
}

.month-item:hover {
  color: var(--clr-primary);
}

.month-item.active {
  color: var(--clr-primary);
  background: rgba(208, 2, 27, 0.04);
  border-left-color: var(--clr-primary);
}

.book-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ============================================================
   HORIZONTAL BOOK CARD — Desktop
   Grid: [img] [main] [side]
               [actions] [side]
   ============================================================ */
.book-card--horizontal {
  display: grid;
  grid-template-columns: 150px 1fr 200px;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "img main side"
    "img desc side"
    "img actions side";
  column-gap: 2rem;
  background: white;
  padding: 1.5rem;
  border: 1px solid rgba(208, 2, 27, 0.12);
  border-radius: 4px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.book-card--horizontal:hover {
  border-color: var(--clr-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.book-card__img-wrap {
  grid-area: img;
  width: 150px;
  height: 210px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  background: #f0f0f0;
  position: relative;
  align-self: start;
}

.book-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-card__img-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--clr-primary);
  color: white;
  padding: 0.4rem 1rem;
  font-weight: 700;
  font-size: 0.8rem;
  white-space: nowrap;
  z-index: 2;
  border-radius: 2px;
}

.book-card__main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-top: 0.25rem;
}

.book-card__stock-text {
  font-size: 0.75rem;
  color: #d0021b;
  /* matched to primary red or similar */
  font-weight: 700;
  text-transform: uppercase;
}

.book-card__title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #333;
  line-height: 1.25;
}

.book-card__desc {
  grid-area: desc;
  margin-top: 0.5rem;
  font-size: 1rem;
  color: #231F20;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* Expanded state (Book 3 — THU GỌN) */
.book-card--expanded .book-card__desc {
  -webkit-line-clamp: unset;
  overflow: visible;
  display: block;
}

.book-card__tags {
  display: none;
  gap: 0.5rem;
  margin-top: 0.25rem;
  flex-wrap: wrap;
}

.monthly-recs.is-searching .book-card__tags {
  display: flex;
}

.book-card__tag {
  background-color: rgba(208, 2, 27, 0.08);
  color: var(--clr-primary, #d0021b);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.book-card__price-group--mobile {
  display: none;
}

.book-card__price-group--desktop {
  display: flex;
  align-items: center;
  gap: 12px;
}

.book-card__price-original {
  font-size: 0.95rem;
  color: #888;
  text-decoration: line-through;
  font-weight: 500;
}

.book-card__bottom-actions {
  grid-area: actions;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-top: 1.25rem;
  align-self: end;
}

.book-card__side {
  grid-area: side;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  height: 100%;
  padding-top: 0.25rem;
}

.book-card__price {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-primary);
}

/* Quantity selector (desktop) */
.quantity-selector {
  display: flex;
  align-items: center;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
  background: white;
}

.quantity-selector.is-disabled {
  opacity: 0.5;
}

.qty-btn {
  background: white;
  border: none;
  width: 38px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-primary);
  transition: background 0.2s ease;
}

.qty-btn:hover:not(:disabled) {
  background: #fef0f1;
}

.qty-btn:disabled {
  cursor: not-allowed;
  color: #bbb;
}

.qty-input {
  width: 44px;
  height: 40px;
  border: none;
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: #333;
  background: transparent;
  outline: none;
}

.btn-cart {
  background: var(--clr-primary);
  color: white;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 4px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s ease, transform 0.2s ease;
  text-transform: uppercase;
  white-space: nowrap;
}

.btn-cart:hover:not(:disabled) {
  background: #b00217;
  transform: translateY(-1px);
}

.btn-cart.is-disabled {
  background: #ddd;
  color: #888;
  cursor: not-allowed;
}

.btn-details {
  color: var(--clr-primary);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 5px;
  text-transform: uppercase;
  transition: opacity 0.2s;
}

.btn-details svg {
  transition: transform 0.3s ease;
}

.book-card--expanded .btn-details svg {
  transform: rotate(180deg);
}

.btn-details:hover {
  opacity: 0.75;
}

/* ============================================================
   FOUNDER SECTION
   ============================================================ */
.founder-section {
  padding-block: 1.5rem 1.5rem;
  background: #fafafa;
  text-align: left;
}

.founder-card {
  max-width: 100vw;
  margin-inline: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: left;
}

.founder-img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.founder-name {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.founder-quote {
  text-align: center;
  font-size: 1.05rem;
  font-style: italic;
  color: #666;
  line-height: 1.7;
  max-width: 560px;
}

/* ============================================================
   RESPONSIVE — Tablet (≤ 992px)
   ============================================================ */
@media (max-width: 992px) {
  .recs-layout {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .recs-sidebar {
    border: none;
    padding: 0;
    width: 100%;
  }

  .month-nav {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    padding-bottom: 0;
  }

  .month-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: none;
    white-space: normal;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 700;
    background: #f8f9fa;
    color: #333;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.25s ease;
    width: 100%;
  }

  .month-item::after {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.3s ease;
    margin-left: 10px;
    flex-shrink: 0;
  }

  .month-item.active {
    background: var(--clr-primary);
    color: white;
    border-color: var(--clr-primary);
  }

  .month-item.active::after {
    transform: rotate(-135deg);
  }

  /* Style book-list when moved as sibling under month-item on mobile */
  .month-nav .book-list {
    margin-block: 0.75rem 1.5rem;
    padding-inline: 0.25rem;
    animation: slideDown 0.3s ease-out forwards;
    width: 100%;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }

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

/* ============================================================
   RESPONSIVE — Mobile (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {

  /* Hero */
  .hero,
  .hero__slider {
    min-height: 300px;
    height: 300px;
  }

  .hero__slide {
    background-position: right center;
  }

  .hero__content {
    padding-inline: 1.25rem;
    padding-left: 0.5px;
  }

  .hero__title {
    font-size: 1.35rem;
    margin-bottom: 0.6rem;
  }

  .slide_container_hero {
    padding: 0;
    margin: 0 8px;
  }

  .hero__description {
    font-size: 8px;
    line-height: 1.5;
    width: 180px;
  }

  /* Search */
  .search-box {
    margin-inline: 0;
    padding: 0.5rem;
    gap: 8px;
    border-radius: 6px;
    margin-bottom: 1.5rem;
  }

  .search-box__field {
    padding-left: 8px;
    border-color: #e0e0e0;
  }

  .search-box__icon {
    width: 16px;
    height: 16px;
  }

  .search-box input {
    padding: 8px 6px;
    font-size: 0.85rem;
  }

  .search-box .btn-search {
    padding: 0 1rem;
    font-size: 0.8rem;
  }

  /* Monthly recs */
  .monthly-recs {
    padding-block: 2rem;
  }

  .monthly-recs .section-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
  }

  /* ── Book card — Mobile: horizontal (image left, content right) ── */
  .book-card--horizontal {
    display: grid;
    grid-template-columns: 85px minmax(0, 1fr);
    grid-template-rows: auto auto auto auto;
    grid-template-areas:
      "img main"
      "img side"
      "desc desc"
      "actions actions";
    column-gap: 0.75rem;
    row-gap: 0;
    padding: 0.75rem;
    border-radius: 8px;
  }

  .book-card__img-wrap {
    grid-area: img;
    width: 85px;
    height: 120px;
    border-radius: 6px;
    align-self: start;
  }

  .book-card__main {
    grid-area: main;
    padding-top: 0;
    gap: 0.35rem;
  }

  .book-card__stock-text {
    font-size: 0.7rem;
  }

  .book-card__title {
    font-size: 0.95rem;
    line-height: 1.3;
  }

  .book-card__desc {
    font-size: 1rem;
    color: #231F20;
    grid-area: desc;
    line-height: 1.4;
    -webkit-line-clamp: 2;
    margin-block: 0.75rem 0.5rem;
    word-break: break-word;
    overflow-wrap: break-word;
  }

  /* Expanded still shows full text on mobile */
  .book-card--expanded .book-card__desc {
    -webkit-line-clamp: unset;
    display: block;
  }

  /* Move side area containing details button under main content on mobile */
  .book-card__side {
    grid-area: side;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding-top: 0.25rem;
    height: auto;
  }

  .book-card__side .book-card__price {
    display: none;
  }

  .book-card__side .btn-details {
    display: flex;
  }

  .book-card__price-group--desktop {
    display: none;
  }

  .book-card__price-group--mobile {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    margin-top: 0.35rem;
  }

  .book-card__price-group--mobile .book-card__price-original {
    font-size: 0.85rem;
    color: #888;
    text-decoration: line-through;
    font-weight: 500;
  }

  .book-card__price-group--mobile .book-card__price {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--clr-primary);
    margin-top: 0;
    text-align: left;
    width: auto;
  }

  /* Full-width actions row */
  .book-card__bottom-actions {
    grid-area: actions;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding-top: 0.6rem;
    margin-top: 0.6rem;
    border-top: 1px solid #f0f0f0;
  }

  .book-card__bottom-actions .quantity-selector {
    flex: 0 0 auto;
    width: auto !important;
    height: 32px;
    border: 1px solid #ddd;
    border-radius: 4px;
    justify-content: space-between;
  }

  .book-card__bottom-actions .qty-btn {
    width: 30px;
    height: 32px;
    font-size: 1rem;
    flex: 0 0 30px;
  }

  .book-card__bottom-actions .qty-input {
    width: 30px;
    height: 32px;
    font-size: 0.9rem;
  }

  .book-card__bottom-actions .btn-cart {
    flex: 1;
    height: 32px;
    padding: 0 0.5rem;
    justify-content: center;
    font-size: 0.75rem;
    border-radius: 4px;
    min-width: 0;
    width: auto;
  }

  /* Founder */
  .founder-section {
    padding-block: 2.5rem;
  }

  .founder-section .section-title {
    font-size: 1.1rem;
  }

  .founder-img {
    width: 110px;
    height: 110px;
    margin-bottom: 1rem;
  }

  .founder-name {
    font-size: 1.2rem;
  }

  .founder-quote {
    font-size: 0.9rem;
    line-height: 1.6;
  }
}

@media (max-width: 380px) {
  .hero__title {
    font-size: 1.35rem;
  }
}

/* Search Active Layout */
.monthly-recs.is-searching .section-title {
  display: none !important;
}

.monthly-recs.is-searching .recs-sidebar {
  display: none !important;
}

.monthly-recs.is-searching .recs-layout {
  grid-template-columns: 1fr;
}

.is-hidden {
  display: none !important;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.page-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--clr-gray-200);
  border-radius: 6px;
  font-weight: 600;
  color: var(--clr-dark);
  transition: all 0.2s ease;
}

.page-link:hover,
.page-link.is-active {
  background-color: var(--clr-primary);
  color: white;
  border-color: var(--clr-primary);
}

.page-link.next {
  font-size: 1.2rem;
}