.product-page {
  padding: 18px 0 28px;
}

.product-detail-page {
  display: grid;
  gap: 18px;
}

.product-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 32px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.product-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.product-breadcrumb a:hover {
  color: var(--accent-hover);
}

.product-layout-pro {
  display: grid;
  grid-template-columns: minmax(360px, 1.08fr) minmax(360px, 0.92fr) minmax(250px, 320px);
  gap: 22px;
  align-items: start;
}

.product-media-column,
.product-info-column,
.product-related-column,
.product-tabs-wide {
  min-width: 0;
}

.product-media-column {
  grid-column: 1;
  grid-row: 1;
}

.product-info-column {
  grid-column: 2;
  grid-row: 1;
}

.product-tabs-wide {
  grid-column: 1 / 3;
  grid-row: 2;
}

.product-main-media {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(420px, 40vw, 560px);
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.product-main-image {
  width: 100%;
  height: clamp(380px, 37vw, 530px);
  object-fit: contain;
  display: block;
}

.product-gallery-arrow,
.product-zoom-btn,
.product-favorite-btn,
.product-related-cart {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-main);
  transition: var(--transition);
}

.product-gallery-arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  transform: translateY(-50%);
  font-size: 2rem;
  line-height: 1;
}

.product-gallery-arrow.is-prev {
  left: 14px;
}

.product-gallery-arrow.is-next {
  right: 14px;
}

.product-zoom-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  font-size: 1.35rem;
  font-weight: 700;
}

.product-gallery-arrow:hover,
.product-zoom-btn:hover,
.product-favorite-btn:hover,
.product-related-cart:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  transform: translateY(-1px);
}

.product-gallery-arrow:hover {
  transform: translateY(-50%) scale(1.03);
}

.product-gallery-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.product-gallery-tile {
  aspect-ratio: 1 / 0.82;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

.product-gallery-tile.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(90, 174, 255, 0.18);
}

.product-gallery-tile img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-info-column {
  display: grid;
  gap: 18px;
}

.product-title-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.product-title-row h1 {
  margin: 0 0 8px;
  font-size: clamp(1.65rem, 2.2vw, 2.25rem);
  line-height: 1.12;
}

.product-title-row p {
  margin: 0;
  color: var(--accent-hover);
  font-size: 1.08rem;
  font-weight: 700;
}

.product-favorite-btn {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  font-size: 1.7rem;
  line-height: 1;
}

.product-favorite-btn.is-active {
  color: #d92d20;
  border-color: rgba(217, 45, 32, 0.32);
}

.product-rating-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.product-rating-row span {
  color: #f5b301;
  letter-spacing: 2px;
  font-size: 1.22rem;
}

.product-rating-row strong {
  font-weight: 700;
}

.product-rating-row a {
  font-weight: 700;
  text-decoration: none;
}

.product-rating-row button {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--accent-hover);
  font-weight: 800;
}

.product-hero-price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
}

.product-hero-price strong {
  font-size: clamp(2rem, 3vw, 2.65rem);
  line-height: 1;
}

.product-hero-price del {
  color: var(--text-muted);
  font-size: 1.5rem;
}

.product-hero-price span {
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 800;
}

.product-lowest-price {
  margin: -8px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.product-availability {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
}

.product-availability span {
  color: var(--text-main);
}

.product-availability strong.is-in {
  color: #3f8f12;
}

.product-availability strong.is-out {
  color: #b42318;
}

.product-availability i {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--brand-lime);
}

.product-availability.is-out i {
  background: #dc2626;
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12);
}

.product-purchase-row {
  display: grid;
  grid-template-columns: auto minmax(220px, 1fr);
  gap: 18px;
  align-items: start;
}

.product-buy-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.product-buy-label {
  font-weight: 700;
}

.product-quantity-stepper {
  display: grid;
  grid-template-columns: 48px 60px 48px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
}

.product-quantity-stepper button,
.product-quantity-stepper input {
  width: 100%;
  border: 0;
  background: transparent;
  text-align: center;
  font-weight: 800;
}

.product-quantity-stepper button {
  color: var(--text-muted);
}

.product-quantity-stepper input {
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  color: var(--text-main);
}

.product-quantity-stepper input::-webkit-outer-spin-button,
.product-quantity-stepper input::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
}

.product-add-cart {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 1.05rem;
}

.product-add-cart:hover {
  background: var(--accent-hover);
}

.product-add-cart:disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

.product-facts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.product-fact-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  align-content: center;
  min-height: 54px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.product-fact-card span {
  color: var(--text-muted);
  font-weight: 800;
  font-size: 0.86rem;
}

.product-fact-card strong {
  min-width: 0;
  font-size: 1rem;
  line-height: 1.18;
  overflow-wrap: break-word;
  word-break: normal;
}

.product-category-divider {
  margin: 18px 0 14px;
  border: 0;
  border-top: 1px solid var(--border);
}

.product-category-banner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  min-height: 118px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.product-category-banner-item {
  position: relative;
  display: grid;
  place-items: end start;
  min-width: 0;
  min-height: 118px;
  padding: 16px;
  color: #fff;
  text-decoration: none;
  isolation: isolate;
  overflow: hidden;
}

.product-category-banner-item img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 180ms ease;
}

.product-category-banner-item::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(11, 17, 23, 0.16), rgba(11, 17, 23, 0.72));
}

.product-category-banner-item + .product-category-banner-item::before {
  content: "";
  position: absolute;
  top: -18px;
  bottom: -18px;
  left: -1px;
  z-index: 2;
  width: 3px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 0 1px rgba(11, 17, 23, 0.2), 0 0 18px rgba(11, 17, 23, 0.28);
  transform: rotate(13deg);
  transform-origin: center;
}

.product-category-banner-item strong {
  max-width: 100%;
  padding: 6px 9px;
  border-radius: 8px;
  background: rgba(11, 17, 23, 0.68);
  font-size: 1rem;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.product-category-banner-item:hover img {
  transform: scale(1.06);
}

.product-category-banner-item:hover strong {
  background: var(--accent);
}

.product-tabs-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.product-tabs-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--border);
}

.product-tabs-nav button {
  min-height: 52px;
  padding: 0 10px;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.18;
}

.product-tabs-nav button.is-active {
  color: var(--accent-hover);
  border-bottom-color: var(--accent);
}

.product-tab-panel {
  display: none;
  padding: 0;
}

.product-tab-panel.is-active {
  display: block;
}

.product-description-copy {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1rem;
}

.product-description-copy p {
  margin: 0;
}

.product-spec-table {
  width: 100%;
  border-collapse: collapse;
}

.product-spec-table th,
.product-spec-table td {
  padding: 9px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.product-spec-table th {
  width: 28%;
  color: var(--text-muted);
  font-weight: 700;
}

.product-spec-table td {
  width: 72%;
}

.product-spec-table tr:last-child th,
.product-spec-table tr:last-child td {
  border-bottom: 0;
}

.product-service-copy {
  padding: 16px;
}

.product-service-copy p:last-child {
  margin-bottom: 0;
}

.product-price-history {
  margin: 0;
  padding: 16px;
  border-top: 1px solid var(--border);
}

.product-price-history h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.product-related-column {
  grid-column: 3;
  grid-row: 1 / span 2;
  display: grid;
  gap: 14px;
  padding-left: 22px;
  border-left: 1px solid var(--border);
  align-content: start;
}

.product-related-head h2 {
  margin: 0;
  font-size: 1.22rem;
}

.product-related-list {
  display: grid;
  gap: 12px;
}

.product-related-card {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr) 42px;
  gap: 12px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.product-related-image {
  display: block;
  aspect-ratio: 0.74;
  border-radius: 8px;
  background: #f8fafc;
  overflow: hidden;
}

.product-related-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-related-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
  color: var(--text-main);
  text-decoration: none;
}

.product-related-copy strong,
.product-related-copy span,
.product-related-copy small {
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-related-copy strong {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-height: 1.25;
}

.product-related-copy span,
.product-related-copy small {
  color: var(--text-muted);
  white-space: nowrap;
}

.product-related-copy b {
  margin-top: 8px;
  font-size: 1.05rem;
}

.product-related-copy em {
  width: fit-content;
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-style: normal;
  font-weight: 800;
  font-size: 0.75rem;
}

.product-related-cart {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  font-size: 0;
}

.product-related-cart::before {
  content: "+";
  font-size: 1.35rem;
  font-weight: 900;
}

.product-related-more {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 800;
}

.product-related-empty {
  margin: 0;
  color: var(--text-muted);
}

.product-trust-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.product-trust-strip div {
  display: grid;
  gap: 2px;
}

.product-trust-strip strong {
  font-size: 0.96rem;
}

.product-trust-strip span {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.product-stock-note.is-out {
  margin: 0;
  color: #b42318;
  font-weight: 800;
}

.product-image-lightbox[hidden] {
  display: none;
}

.product-image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(11, 17, 23, 0.78);
}

.product-image-lightbox img {
  max-width: min(92vw, 920px);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  background: var(--surface);
}

.product-image-lightbox button {
  position: fixed;
  top: 18px;
  right: 18px;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--text-main);
  font-weight: 800;
}

body.product-lightbox-open {
  overflow: hidden;
}

@media (max-width: 1199.98px) {
  .product-layout-pro {
    grid-template-columns: minmax(300px, 0.95fr) minmax(0, 1fr);
  }

  .product-media-column,
  .product-info-column,
  .product-tabs-wide,
  .product-related-column {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .product-media-column {
    grid-column: 1;
  }

  .product-info-column {
    grid-column: 2;
  }

  .product-tabs-wide {
    grid-column: 1 / -1;
  }

  .product-related-column {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 18px;
  }

  .product-related-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767.98px) {
  .product-layout-pro {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .product-media-column,
  .product-info-column,
  .product-tabs-wide,
  .product-related-column {
    grid-column: 1;
  }

  .product-main-media {
    min-height: 340px;
  }

  .product-main-image {
    height: 330px;
  }

  .product-gallery-strip,
  .product-facts-grid,
  .product-related-list,
  .product-trust-strip {
    grid-template-columns: 1fr 1fr;
  }

  .product-purchase-row {
    grid-template-columns: 1fr;
  }

  .product-tabs-nav {
    display: flex;
    overflow-x: auto;
  }

  .product-tabs-nav button {
    flex: 0 0 auto;
    padding: 0 14px;
  }

  .product-related-card {
    grid-template-columns: 82px minmax(0, 1fr) 42px;
  }

  .product-category-banner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-category-banner-item {
    min-height: 104px;
  }

  .product-category-banner-item:nth-child(odd)::before {
    display: none;
  }
}

@media (max-width: 479.98px) {
  .product-gallery-strip,
  .product-facts-grid,
  .product-related-list,
  .product-trust-strip {
    grid-template-columns: 1fr;
  }

  .product-title-row {
    grid-template-columns: 1fr;
  }

  .product-favorite-btn {
    justify-self: start;
  }

  .product-category-banner {
    grid-template-columns: 1fr;
  }

  .product-category-banner-item {
    min-height: 84px;
  }

  .product-category-banner-item::before {
    display: none;
  }
}

.product-reviews-panel {
  display: grid;
  gap: 18px;
}

.product-reviews-list {
  display: grid;
  gap: 12px;
}

.product-review-item {
  border: 1px solid var(--product-border, #d8e1ee);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
}

.product-review-item > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-review-item h3 {
  font-size: 1rem;
  margin: 10px 0 6px;
}

.product-review-item p {
  margin: 0 0 8px;
}

.product-review-stars {
  color: #f5b301;
  white-space: nowrap;
}

.product-review-stars span {
  color: #cbd5e1;
}

.product-review-form {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--product-border, #d8e1ee);
  padding-top: 16px;
}

.product-review-form h2 {
  font-size: 1.05rem;
  margin: 0;
}

.product-review-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.product-review-form input,
.product-review-form select,
.product-review-form textarea {
  width: 100%;
  border: 1px solid var(--product-border, #d8e1ee);
  border-radius: 8px;
  padding: 10px 12px;
}

.product-review-form textarea {
  min-height: 100px;
  resize: vertical;
}

.product-review-hp {
  position: absolute;
  left: -9999px;
}

.product-review-result,
.product-reviews-empty {
  color: #64748b;
  margin: 0;
}

@media (max-width: 700px) {
  .product-review-grid {
    grid-template-columns: 1fr;
  }
}