.product-hero {
  position: relative;
  color: #ffffff;
  background-image: url("../images/hero-structural-steel.jpg");
  background-position: center;
  background-size: cover;
}

.product-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background: rgba(21, 24, 29, 0.74);
}

.product-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: end;
  max-width: 920px;
  min-height: 430px;
  padding: 46px 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.88rem;
  font-weight: 700;
}

.breadcrumb a {
  color: #ffffff;
}

.breadcrumb span::before {
  content: "/";
  margin-right: 10px;
  color: rgba(255, 255, 255, 0.42);
}

.product-hero .section-eyebrow {
  color: var(--color-warning);
}

.product-hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.7rem, 5vw, 5.2rem);
  line-height: 0.98;
}

.product-hero p:not(.section-eyebrow) {
  max-width: 820px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: clamp(1.02rem, 1.7vw, 1.2rem);
}

.product-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.application-layout,
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  align-items: start;
  gap: 46px;
}

.application-copy h2,
.content-main h2,
.content-cta h2,
.original-content-main h2,
.original-content-sidebar h2,
.category-faq h2 {
  margin: 0;
  color: var(--color-ink);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
}

.application-copy p,
.content-main p,
.content-cta p,
.original-content-main p,
.original-content-sidebar p,
.faq-mini-list p {
  margin: 14px 0 0;
  color: var(--color-muted);
}

.category-faq {
  background: var(--color-surface-soft);
}

.product-card > span {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 800;
}

.product-card h3 {
  margin: 38px 0 10px;
  font-size: 1.12rem;
  line-height: 1.22;
}

.product-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.93rem;
}

.product-range-section {
  background: #ffffff;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: 0 8px 22px rgba(21, 24, 29, 0.04);
}

.product-card h3 a:hover,
.product-card h3 a:focus {
  color: var(--color-accent);
}

.product-card .text-link {
  margin-top: auto;
  padding-top: 22px;
}

.product-card.is-observed {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.product-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.application-section {
  color: #ffffff;
  background: var(--color-surface-strong);
}

.application-section .section-eyebrow,
.application-section .text-link {
  color: var(--color-warning);
}

.application-copy h2 {
  color: #ffffff;
}

.application-copy p {
  color: rgba(255, 255, 255, 0.72);
}

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

.application-links a {
  min-height: 64px;
  padding: 16px;
  color: rgba(255, 255, 255, 0.86);
  font-weight: 800;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
}

.application-links a:hover,
.application-links a:focus {
  color: var(--color-warning);
}

.commercial-content {
  background: #ffffff;
}

.original-content-section {
  background: #ffffff;
}

.original-content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  align-items: start;
  gap: 42px;
}

.original-content-main {
  max-width: 820px;
}

.original-content-main h2 {
  margin-top: 34px;
}

.original-content-main h2:first-of-type {
  margin-top: 0;
}

.original-content-main ul {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 20px;
  color: var(--color-muted);
}

.original-content-main a {
  color: var(--color-accent);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.original-content-sidebar {
  position: sticky;
  top: 140px;
  padding: 24px;
  background: var(--color-surface-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.original-content-sidebar h2 {
  font-size: 1.55rem;
}

.original-content-sidebar .button {
  width: 100%;
  margin-top: 20px;
}

.sidebar-link-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-line);
}

.sidebar-link-list a {
  color: var(--color-ink-soft);
  font-size: 0.92rem;
  font-weight: 800;
}

.sidebar-link-list a:hover,
.sidebar-link-list a:focus {
  color: var(--color-accent);
}

.content-main a {
  color: var(--color-accent);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.content-cta {
  padding: 28px;
  background: var(--color-surface-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.content-cta .button {
  margin-top: 22px;
}

.faq-mini-list {
  display: grid;
  gap: 12px;
}

.faq-mini-list details {
  padding: 20px 22px;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.faq-mini-list summary {
  color: var(--color-ink);
  font-weight: 800;
  cursor: pointer;
}

@media (max-width: 1080px) {
  .product-hero__inner,
  .application-layout,
  .original-content-layout,
  .content-layout {
    grid-template-columns: 1fr;
  }

  .original-content-sidebar {
    position: static;
  }

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

@media (max-width: 760px) {
  .product-hero__inner {
    min-height: auto;
    padding: 48px 0;
  }

  .breadcrumb {
    margin-bottom: 24px;
  }

  .product-hero__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .product-grid,
  .application-links {
    grid-template-columns: 1fr;
  }
}