.product-page {
  background: #fff;
  color: #152436;
}

.product-top {
  padding: 34px 0 72px;
}

.product-breadcrumbs {
  margin-bottom: 34px;
}

.product-breadcrumbs span:last-child {
  color: #667587;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: clamp(42px, 6vw, 88px);
  align-items: start;
}

.product-gallery {
  min-width: 0;
}

.product-main-image {
  min-height: 520px;
  border: 1px solid #e0e6ec;
  border-radius: 18px;
  background: #f7f9fb;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-main-image > img {
  display: block;
  width: 100%;
  height: 520px;
  object-fit: contain;
  padding: 34px;
  box-sizing: border-box;
}

.product-image-placeholder {
  width: 100%;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  align-items: center;
  color: #8b98a7;
  font-size: 14px;
}

.product-image-placeholder svg {
  width: 72px;
  height: 72px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.product-thumbnails {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 3px;
}

.product-thumbnail {
  width: 84px;
  height: 84px;
  flex: 0 0 84px;
  padding: 6px;
  border: 1px solid #dce3ea;
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.product-thumbnail:hover {
  border-color: #92a3b5;
}

.product-thumbnail.active {
  border-color: #175da9;
  box-shadow: 0 0 0 1px #175da9 inset;
}

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

.product-summary {
  padding-top: 8px;
}

.product-category-link {
  display: inline-flex;
  margin-bottom: 14px;
  color: #175da9;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  text-decoration: none;
}

.product-category-link:hover {
  text-decoration: underline;
}

.product-category-link-static:hover {
  text-decoration: none;
}

.product-summary h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(30px, 3vw, 46px);
  line-height: 1.08;
  letter-spacing: -.035em;
  font-weight: 700;
  color: #12243a;
}

.product-identifiers {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  color: #667587;
  font-size: 14px;
}

.product-identifiers strong {
  color: #2b3b4e;
  font-weight: 650;
}

.product-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.product-status i {
  width: 8px;
  height: 8px;
  background: #38a169;
  border-radius: 50%;
}

.product-lead {
  margin: 26px 0 0;
  max-width: 680px;
  color: #536376;
  font-size: 17px;
  line-height: 1.65;
}

.product-buy-box {
  margin-top: 30px;
  padding: 26px;
  border: 1px solid #dce3ea;
  border-radius: 16px;
  background: #f8fafc;
}

.product-price-label {
  margin-bottom: 6px;
  color: #708093;
  font-size: 13px;
}

.product-price {
  color: #132840;
  font-size: clamp(32px, 3.1vw, 42px);
  line-height: 1;
  font-weight: 750;
  letter-spacing: -.035em;
}

.product-unit {
  margin-top: 7px;
  color: #718093;
  font-size: 13px;
}

.product-buy-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 22px;
}

.product-btn {
  min-height: 50px;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}

.product-btn:active {
  transform: translateY(1px);
}

.product-btn-primary {
  border-color: #175da9;
  background: #175da9;
  color: #fff;
}

.product-btn-primary:hover {
  background: #124e90;
  border-color: #124e90;
}

.product-btn-secondary {
  border-color: #cbd5df;
  background: #fff;
  color: #1d3957;
}

.product-btn-secondary:hover {
  border-color: #9eafc0;
}

.product-buy-note {
  margin-top: 14px;
  color: #7a8898;
  font-size: 12px;
  line-height: 1.5;
}

.product-other-categories {
  margin-top: 25px;
  padding-top: 22px;
  border-top: 1px solid #e5eaf0;
}

.product-other-categories > span {
  display: block;
  margin-bottom: 9px;
  color: #7a8898;
  font-size: 12px;
}

.product-other-categories > div {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.product-other-categories a {
  padding: 7px 10px;
  border-radius: 7px;
  background: #f1f5f8;
  color: #38516b;
  font-size: 12px;
  text-decoration: none;
}

.product-details-section {
  padding: 72px 0;
  background: #f6f8fa;
  border-top: 1px solid #e7ebef;
  border-bottom: 1px solid #e7ebef;
}

.product-details-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: clamp(40px, 6vw, 84px);
  align-items: start;
}

.product-details-main {
  display: grid;
  gap: 56px;
}

.product-content-block h2,
.product-documents h2,
.related-heading h2 {
  margin: 7px 0 0;
  color: #15293e;
  font-size: clamp(26px, 2.4vw, 34px);
  line-height: 1.15;
  letter-spacing: -.025em;
}

.product-description {
  margin-top: 24px;
  color: #4f6174;
  font-size: 16px;
  line-height: 1.75;
}

.product-specifications {
  margin: 25px 0 0;
}

.product-specifications > div {
  display: grid;
  grid-template-columns: minmax(180px, .85fr) minmax(0, 1.15fr);
  gap: 28px;
  padding: 14px 0;
  border-bottom: 1px solid #dfe5eb;
}

.product-specifications > div:first-child {
  border-top: 1px solid #dfe5eb;
}

.product-specifications dt {
  color: #708093;
}

.product-specifications dd {
  margin: 0;
  color: #25394f;
  font-weight: 600;
}

.product-documents {
  padding: 26px;
  border: 1px solid #dce3ea;
  border-radius: 14px;
  background: #fff;
}

.product-documents h2 {
  font-size: 25px;
}

.document-list {
  display: grid;
  gap: 8px;
  margin-top: 21px;
}

.document-card {
  min-width: 0;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid #edf0f3;
  color: inherit;
  text-decoration: none;
}

.document-card:first-child {
  border-top: 0;
}

a.document-card:hover strong {
  color: #175da9;
}

.document-icon {
  width: 34px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #175da9;
}

.document-icon svg {
  width: 26px;
  height: 30px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.document-copy {
  min-width: 0;
}

.document-copy strong {
  display: block;
  color: #25394f;
  font-size: 14px;
  line-height: 1.35;
  transition: color .15s ease;
}

.document-copy small {
  display: block;
  margin-top: 4px;
  color: #7b8998;
  font-size: 11px;
}

.document-arrow {
  color: #8a98a8;
}

.related-products-section {
  padding: 72px 0 84px;
}

.related-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.related-heading > a {
  color: #175da9;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.related-heading > a:hover {
  text-decoration: underline;
}

.related-products-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.related-product-card {
  overflow: hidden;
  border: 1px solid #e0e6ec;
  border-radius: 12px;
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.related-product-card:hover {
  border-color: #becbd7;
  box-shadow: 0 10px 28px rgba(21, 45, 69, .08);
  transform: translateY(-2px);
}

.related-product-image {
  height: 200px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f7f9fb;
}

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

.related-product-placeholder {
  width: 44%;
  height: 44%;
  border: 1px dashed #cbd5df;
  border-radius: 10px;
}

.related-product-body {
  padding: 17px;
}

.related-product-sku {
  margin-bottom: 7px;
  color: #8390a0;
  font-size: 11px;
}

.related-product-body h3 {
  margin: 0;
  min-height: 48px;
  color: #25394f;
  font-size: 14px;
  line-height: 1.45;
  font-weight: 650;
}

.related-product-price {
  margin-top: 16px;
  color: #152b43;
  font-size: 18px;
  font-weight: 750;
}

.related-product-price small {
  color: #7b8998;
  font-size: 11px;
  font-weight: 500;
}

.product-not-found {
  padding: 34px 0 90px;
}

.not-found-card {
  max-width: 720px;
  margin-top: 46px;
  padding: 48px;
  border: 1px solid #dfe5eb;
  border-radius: 16px;
  background: #f8fafc;
}

.not-found-card h1 {
  margin: 8px 0 13px;
  color: #15293e;
  font-size: 40px;
}

.not-found-card p {
  margin: 0;
  color: #607184;
  font-size: 16px;
  line-height: 1.6;
}

.not-found-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 1050px) {
  .product-layout {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .product-main-image,
  .product-image-placeholder {
    min-height: 430px;
  }

  .product-main-image > img {
    height: 430px;
  }

  .product-details-grid {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 36px;
  }

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

@media (max-width: 780px) {
  .product-top {
    padding: 24px 0 48px;
  }

  .product-breadcrumbs {
    margin-bottom: 22px;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 4px;
  }

  .product-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .product-main-image,
  .product-image-placeholder {
    min-height: 350px;
  }

  .product-main-image > img {
    height: 350px;
    padding: 22px;
  }

  .product-summary {
    padding-top: 0;
  }

  .product-summary h1 {
    font-size: 32px;
  }

  .product-buy-actions {
    grid-template-columns: 1fr;
  }

  .product-details-section {
    padding: 50px 0;
  }

  .product-details-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .product-specifications > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .product-documents {
    padding: 22px;
  }

  .related-products-section {
    padding: 50px 0 64px;
  }

  .related-heading {
    display: block;
  }

  .related-heading > a {
    display: inline-block;
    margin-top: 12px;
  }
}

@media (max-width: 520px) {
  .product-main-image,
  .product-image-placeholder {
    min-height: 300px;
  }

  .product-main-image > img {
    height: 300px;
    padding: 16px;
  }

  .product-thumbnail {
    width: 72px;
    height: 72px;
    flex-basis: 72px;
  }

  .product-buy-box {
    padding: 20px;
  }

  .related-products-grid {
    grid-template-columns: 1fr;
  }

  .not-found-card {
    padding: 30px 22px;
  }
}


/* ===== Product gallery ===== */
.product-main-image{position:relative}
.product-image-open{display:flex;width:100%;height:100%;min-height:inherit;padding:0;border:0;background:transparent;align-items:center;justify-content:center;cursor:zoom-in}
.product-image-open>img{display:block;width:100%;height:520px;object-fit:contain;padding:34px;box-sizing:border-box}
.product-gallery-arrow{position:absolute;top:50%;z-index:3;width:44px;height:44px;margin-top:-22px;border:1px solid #d7e0e8;border-radius:50%;background:rgba(255,255,255,.94);display:grid;place-items:center;color:#1d3957;font-size:32px;line-height:1;box-shadow:0 4px 18px rgba(20,42,64,.10);opacity:0;transition:.16s ease}
.product-main-image:hover .product-gallery-arrow,.product-gallery-arrow:focus-visible{opacity:1}
.product-gallery-prev{left:16px}.product-gallery-next{right:16px}
.product-gallery-counter{position:absolute;right:15px;bottom:15px;z-index:3;padding:6px 9px;border-radius:20px;background:rgba(17,37,58,.78);color:#fff;font-size:12px;line-height:1;pointer-events:none}
body.product-lightbox-open{overflow:hidden}
.product-lightbox{position:fixed;inset:0;z-index:1000;display:none;align-items:center;justify-content:center;padding:40px 80px;background:rgba(7,18,30,.92)}
.product-lightbox.open{display:flex}
.product-lightbox-content{position:relative;width:min(1180px,90vw);height:min(820px,86vh);display:flex;align-items:center;justify-content:center}
.product-lightbox-content img{display:block;width:100%;height:100%;object-fit:contain}
.product-lightbox-close{position:absolute;top:20px;right:24px;z-index:3;width:48px;height:48px;border:0;background:transparent;color:#fff;font-size:42px;line-height:1}
.product-lightbox-arrow{position:absolute;top:50%;z-index:3;width:54px;height:54px;margin-top:-27px;border:1px solid rgba(255,255,255,.28);border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:#fff;font-size:38px;line-height:1}
.product-lightbox-prev{left:22px}.product-lightbox-next{right:22px}
.product-lightbox-counter{position:absolute;left:50%;bottom:-24px;transform:translateX(-50%);color:rgba(255,255,255,.82);font-size:13px}
@media(max-width:1050px){.product-image-open>img{height:430px}}
@media(max-width:780px){
  .product-image-open>img{height:350px;padding:22px}
  .product-gallery-arrow{width:40px;height:40px;margin-top:-20px;opacity:1}
  .product-gallery-prev{left:10px}.product-gallery-next{right:10px}
  .product-lightbox{padding:60px 14px 40px}
  .product-lightbox-content{width:100%;height:76vh}
  .product-lightbox-arrow{width:44px;height:44px;margin-top:-22px;background:rgba(0,0,0,.28)}
  .product-lightbox-prev{left:8px}.product-lightbox-next{right:8px}
  .product-lightbox-close{top:8px;right:10px}
}
@media(max-width:520px){.product-image-open>img{height:300px;padding:16px}}



/* ===== Product summary: description + technical specs ===== */
.product-summary-description{
  margin-top:24px;
  padding-top:22px;
  border-top:1px solid #e3e8ed;
}

.product-summary-label{
  margin-bottom:9px;
  color:#6e7e8e;
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.055em;
}

.product-summary-description-text{
  max-width:690px;
  color:#485b6e;
  font-size:15px;
  line-height:1.65;
}

.product-tech-specs{
  margin-top:20px;
  min-height:66px;
  padding:12px 14px;
  display:grid;
  grid-template-columns:40px minmax(0,1fr) auto;
  gap:12px;
  align-items:center;
  border:1px solid #dce4eb;
  border-radius:10px;
  background:#fff;
  color:#243b53;
  text-decoration:none;
  transition:border-color .16s ease, background .16s ease, box-shadow .16s ease;
}

.product-tech-specs:hover{
  border-color:#9fb5c8;
  background:#f8fbfd;
  box-shadow:0 5px 18px rgba(20,48,74,.06);
}

.product-tech-specs-icon{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border-radius:8px;
  background:#eef5fb;
  color:#175da9;
}

.product-tech-specs-icon svg{
  width:22px;
  height:22px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.product-tech-specs-copy{
  min-width:0;
}

.product-tech-specs-copy strong{
  display:block;
  color:#203a55;
  font-size:14px;
  font-weight:700;
}

.product-tech-specs-copy small{
  display:block;
  margin-top:3px;
  color:#7b8998;
  font-size:11px;
}

.product-tech-specs-arrow{
  color:#8090a1;
  font-size:15px;
}

.product-summary-description + .product-tech-specs{
  margin-top:16px;
}

.product-tech-specs + .product-buy-box{
  margin-top:20px;
}

@media(max-width:780px){
  .product-summary-description{
    margin-top:20px;
    padding-top:18px;
  }

  .product-summary-description-text{
    font-size:14px;
  }

  .product-tech-specs{
    margin-top:16px;
  }
}



/* ===== Desktop compact product summary ===== */
@media (min-width: 901px) {
  .product-top {
    padding-top: 22px;
    padding-bottom: 42px;
  }

  .product-breadcrumbs {
    margin-bottom: 24px;
  }

  .product-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(430px, .92fr);
    gap: 54px;
  }

  .product-summary {
    padding-top: 2px;
  }

  .product-category-link {
    margin-bottom: 9px;
    font-size: 12px;
  }

  .product-summary h1 {
    font-size: clamp(32px, 2.45vw, 43px);
    line-height: 1.04;
  }

  .product-identifiers {
    margin-top: 13px;
    gap: 8px 18px;
    font-size: 13px;
  }

  .product-lead {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.48;
  }

  .product-summary-description {
    margin-top: 16px;
    padding-top: 15px;
  }

  .product-summary-label {
    margin-bottom: 7px;
    font-size: 11px;
  }

  .product-summary-description-text {
    font-size: 14px;
    line-height: 1.5;
  }

  .product-tech-specs {
    margin-top: 12px;
    min-height: 54px;
    padding: 8px 11px;
    grid-template-columns: 34px minmax(0,1fr) auto;
    gap: 10px;
    border-radius: 9px;
  }

  .product-tech-specs-icon {
    width: 34px;
    height: 34px;
    border-radius: 7px;
  }

  .product-tech-specs-icon svg {
    width: 19px;
    height: 19px;
  }

  .product-tech-specs-copy strong {
    font-size: 13px;
  }

  .product-tech-specs-copy small {
    margin-top: 2px;
    font-size: 10px;
  }

  .product-tech-specs + .product-buy-box,
  .product-buy-box {
    margin-top: 14px;
  }

  .product-buy-box {
    padding: 18px 20px;
    border-radius: 14px;
  }

  .product-price-label {
    margin-bottom: 4px;
    font-size: 12px;
  }

  .product-price {
    font-size: clamp(31px, 2.4vw, 38px);
  }

  .product-unit {
    margin-top: 5px;
    font-size: 12px;
  }

  .product-buy-actions {
    margin-top: 15px;
    gap: 9px;
  }

  .product-btn {
    min-height: 44px;
    padding: 0 18px;
    font-size: 13px;
  }

  .product-buy-note {
    margin-top: 10px;
    font-size: 11px;
    line-height: 1.4;
  }

  .product-other-categories {
    margin-top: 18px;
    padding-top: 16px;
  }

  .product-other-categories > span {
    margin-bottom: 7px;
    font-size: 11px;
  }

  .product-other-categories a {
    padding: 6px 9px;
    font-size: 11px;
  }
}