.product-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.1fr);
  gap: clamp(32px, 6vw, 84px);
  align-items: center;
  min-height: 650px;
  padding: clamp(64px, 8vw, 112px) clamp(20px, 5vw, 84px);
  overflow: hidden;
  color: white;
  background: linear-gradient(135deg, #071526, #0b2d54);
}

.product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.2) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(90deg, black, transparent 85%);
}

.product-hero-copy,
.product-hero-media {
  position: relative;
  z-index: 1;
}

.product-hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.04;
}

.product-hero-copy > p:not(.eyebrow) {
  max-width: 650px;
  margin: 24px 0 0;
  color: #d6e1ed;
  font-size: 19px;
}

.product-hero-media img {
  width: 100%;
  height: 500px;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  color: #afc0d1;
  font-size: 13px;
  font-weight: 800;
}

.breadcrumb a:hover {
  color: white;
}

.product-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #dce4ed;
}

.product-facts div {
  min-height: 116px;
  padding: 24px clamp(18px, 3vw, 42px);
  background: white;
}

.product-facts span {
  display: block;
  margin-bottom: 7px;
  color: #167a76;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.product-facts strong {
  color: #071f3d;
  font-size: 17px;
  line-height: 1.35;
}

.catalog-intro {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(360px, 1.2fr);
  gap: clamp(34px, 7vw, 96px);
  align-items: start;
}

.catalog-intro p {
  margin: 0;
  color: #415367;
  font-size: 18px;
}

.catalog-intro .intro-detail {
  display: grid;
  gap: 18px;
}

.gallery-section {
  padding: clamp(64px, 8vw, 112px) clamp(20px, 5vw, 84px);
  background: #f4f7fa;
}

.product-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.gallery-card {
  overflow: hidden;
  border: 1px solid #dce4ed;
  border-radius: 16px;
  background: white;
  box-shadow: 0 12px 34px rgba(13, 23, 36, 0.07);
}

.gallery-card img {
  width: 100%;
  height: 270px;
  object-fit: cover;
  background: #edf1f5;
}

.gallery-card div {
  padding: 18px;
}

.gallery-card h3 {
  margin: 0 0 7px;
  color: #071f3d;
  font-size: 18px;
  line-height: 1.2;
}

.gallery-card p {
  margin: 0;
  color: #607084;
  font-size: 14px;
}

.capability-band {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(420px, 1.2fr);
  gap: clamp(34px, 7vw, 90px);
  padding: clamp(64px, 8vw, 112px) clamp(20px, 5vw, 84px);
  color: white;
  background: #091a2c;
}

.capability-band h2 {
  margin: 0;
  color: white;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.08;
}

.capability-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.capability-list span {
  padding: 15px 16px;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 12px;
  color: #dbe6f1;
  background: rgba(255, 255, 255, 0.06);
  font-size: 14px;
  font-weight: 800;
}

.category-nav {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  padding: 30px clamp(20px, 5vw, 84px);
  border-top: 1px solid #dce4ed;
  background: white;
}

.category-nav a {
  padding: 16px;
  border: 1px solid #dce4ed;
  border-radius: 12px;
  color: #33465a;
  font-size: 13px;
  font-weight: 900;
  text-align: center;
}

.category-nav a:hover,
.category-nav a.active {
  color: white;
  border-color: #1a5795;
  background: #1a5795;
}

.product-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 46px clamp(20px, 5vw, 84px);
  color: white;
  background: linear-gradient(135deg, #164a7e, #0b2d54);
}

.product-cta h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.1;
}

.product-cta p {
  margin: 8px 0 0;
  color: #d4e1ed;
}

@media (max-width: 980px) {
  .product-hero,
  .catalog-intro,
  .capability-band {
    grid-template-columns: 1fr;
  }

  .product-hero-media img {
    height: 430px;
  }

  .product-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .category-nav {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .product-hero {
    min-height: auto;
    padding: 48px 16px;
  }

  .product-hero h1 {
    font-size: 36px;
  }

  .product-hero-copy > p:not(.eyebrow) {
    font-size: 16px;
  }

  .product-hero-media img {
    height: 280px;
    border-radius: 16px;
  }

  .product-facts,
  .product-gallery,
  .capability-list,
  .category-nav {
    grid-template-columns: 1fr;
  }

  .gallery-section,
  .capability-band {
    padding: 48px 16px;
  }

  .gallery-card img {
    height: 240px;
  }

  .product-cta {
    align-items: stretch;
    flex-direction: column;
    padding: 38px 16px;
  }

  .product-cta .button {
    width: 100%;
  }
}