.product-page-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(214, 253, 112, 0.18), transparent 22%),
    linear-gradient(180deg, #ffffff 0%, #f7f9f4 100%);
}

.product-page-main {
  padding-bottom: 80px;
}

.detail-section {
  width: min(1240px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 80px 0 108px;
}

.split-header {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 28px;
  align-items: stretch;
  padding-top: 30px;
}

.split-header-copy,
.split-header-media,
.detail-card,
.climate-visual-card,
.range-card,
.assessment-card,
.detail-cta-band,
.technology-stage,
.related-card {
  border-radius: 24px;
}

.split-header-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 36px;
  background: #ffffff;
  box-shadow: 0 24px 50px rgba(12, 19, 28, 0.08);
}

.split-header-copy h1 {
  margin: 0;
  font-size: clamp(3rem, 5.2vw, 5rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.06em;
  text-align: center;
}

.product-lead,
.section-copy,
.detail-card p,
.benefit-card p,
.climate-pillar p,
.assessment-card p,
.detail-cta-copy p,
.range-copy li {
  color: var(--ink-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.product-lead {
  margin: 18px 0 0;
  max-width: 68ch;
  margin-left: 0;
  margin-right: 0;
  text-align: left;
}

.detail-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  justify-content: center;
}

.detail-button-muted {
  background: #ffffff;
  border-color: rgba(19, 19, 19, 0.08);
  color: var(--ink);
}

.detail-button-muted:hover,
.detail-button-muted:focus-visible {
  background: #f6f7f3;
}

.detail-metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 32px;
}

.detail-metric-card {
  padding: 18px 18px 20px;
  border-radius: 18px;
  background: #f6f8f2;
}

.detail-metric-card strong {
  display: block;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.05em;
}

.detail-metric-card span {
  display: block;
  margin-top: 8px;
  color: var(--ink-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.split-header-media {
  overflow: hidden;
  min-height: 560px;
  background: #dfe8ef;
  box-shadow: 0 24px 50px rgba(12, 19, 28, 0.1);
}

.split-header-media img,
.climate-visual-card img,
.range-card img,
.technology-stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.detail-cta-copy h2 {
  margin: 0;
  font-size: clamp(2rem, 3.2vw, 3.2rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.intro-grid,
.technology-grid,
.assessment-grid,
.related-grid {
  display: grid;
  gap: 18px;
}

.intro-grid {
  grid-template-columns: 1.4fr 1fr 1fr;
}

.detail-card,
.assessment-card,
.related-card {
  padding: 26px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(12, 19, 28, 0.06);
}

.detail-card h3,
.benefit-card h3,
.range-copy h3,
.assessment-card h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.detail-card-wide {
  min-height: 100%;
}

.detail-narrative-card {
  padding: 32px;
}

.detail-narrative-copy {
  max-width: 92ch;
  margin: 0 auto;
  text-align: left;
}

.detail-narrative-copy p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 1rem;
  line-height: 1.78;
}

.detail-narrative-copy p + p {
  margin-top: 18px;
}

.application-card-stack {
  display: grid;
  gap: 20px;
}

.application-card {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: stretch;
  padding: 22px;
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(12, 19, 28, 0.06);
}

.application-card-media {
  margin: 0;
}

.application-card-media img {
  display: block;
  width: 100%;
  aspect-ratio: 1.48;
  border-radius: 18px;
  object-fit: cover;
}

.application-card-media figcaption {
  margin-top: 12px;
  color: #9a9a9a;
  font-size: 0.9rem;
  line-height: 1.5;
}

.application-card-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.application-card-copy h3 {
  margin: 0 0 18px;
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.application-card-copy p {
  margin: 0;
  color: #5f6368;
  font-size: 1rem;
  line-height: 1.8;
}

.application-card-copy p + p {
  margin-top: 20px;
}

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

.benefit-card {
  display: flex;
  gap: 14px;
  padding: 24px;
  border-radius: 22px;
  background: #131313;
  color: #ffffff;
  box-shadow: 0 20px 40px rgba(12, 19, 28, 0.1);
}

.benefit-card p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.benefit-dot {
  width: 12px;
  height: 12px;
  margin-top: 7px;
  flex: 0 0 12px;
  border-radius: 999px;
  background: var(--primary);
}

.climate-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  gap: 22px;
  align-items: stretch;
}

.climate-visual-card {
  overflow: hidden;
  min-height: 420px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(12, 19, 28, 0.08);
}

.climate-pillars {
  display: grid;
  gap: 16px;
}

.climate-pillar {
  padding: 26px;
  border-radius: 22px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(12, 19, 28, 0.06);
}

.climate-pillar strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.3rem;
  font-weight: 600;
}

.product-range-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.range-card {
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 20px 44px rgba(12, 19, 28, 0.08);
}

.range-card img {
  aspect-ratio: 1.06;
}

.range-copy {
  padding: 22px 22px 24px;
}

.range-copy ul,
.assessment-card ul {
  margin: 0;
  padding-left: 18px;
}

.range-copy li + li,
.assessment-card li + li {
  margin-top: 8px;
}

.technology-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 24px;
  align-items: center;
}

.technology-stage {
  overflow: hidden;
  min-height: 360px;
  background: #ffffff;
  box-shadow: 0 20px 44px rgba(12, 19, 28, 0.08);
}

.technology-grid,
.related-grid {
  margin-top: 22px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.assessment-grid {
  grid-template-columns: 0.94fr 1.06fr;
}

.assessment-card-dark {
  background: #131313;
  color: #ffffff;
}

.assessment-card-dark p {
  color: rgba(255, 255, 255, 0.72);
}

.related-card {
  display: flex;
  min-height: 180px;
  flex-direction: column;
  justify-content: space-between;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.related-card span {
  color: var(--ink-muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.related-card strong {
  font-size: 1.3rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.related-card:hover,
.related-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 24px 48px rgba(12, 19, 28, 0.1);
  background: #f9fbf3;
}

.detail-cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 40px;
  padding: 32px;
  background: #131313;
  color: #ffffff;
}

.detail-cta-copy p {
  max-width: 62ch;
  color: rgba(255, 255, 255, 0.74);
}

@media (max-width: 1080px) {
  .split-header,
  .climate-grid,
  .technology-layout,
  .assessment-grid,
  .intro-grid,
  .application-card {
    grid-template-columns: 1fr;
  }

  .product-range-grid,
  .technology-grid,
  .related-grid,
  .benefit-strip,
  .detail-metric-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-header-media {
    min-height: 460px;
  }
}

@media (max-width: 820px) {
  .detail-section {
    width: calc(100vw - 28px);
    padding-top: 24px;
  }

  .split-header-copy,
  .detail-card,
  .assessment-card,
  .detail-cta-band,
  .climate-pillar,
  .benefit-card,
  .range-copy,
  .detail-narrative-card {
    padding: 22px;
  }

  .split-header-copy h1 {
    font-size: clamp(2.5rem, 12vw, 3.6rem);
  }

  .product-range-grid,
  .technology-grid,
  .related-grid,
  .benefit-strip,
  .detail-metric-row {
    grid-template-columns: 1fr;
  }

  .split-header-media,
  .climate-visual-card,
  .technology-stage {
    min-height: 300px;
  }

  .detail-cta-band {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Article with Image Module */
.article-with-image {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: stretch;
  padding: 22px;
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(12, 19, 28, 0.06);
}

.article-with-image-reverse {
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
}

.article-image {
  overflow: hidden;
  border-radius: 18px;
  min-height: 320px;
  background: #f6f8f2;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.article-content p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 1rem;
  line-height: 1.78;
}

.article-content p + p {
  margin-top: 18px;
}

@media (max-width: 1080px) {
  .article-with-image,
  .article-with-image-reverse {
    grid-template-columns: 1fr;
  }
}

/* Product Carousel Module */
.product-carousel-section {
  position: relative;
}

.product-carousel {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 18px 42px rgba(12, 19, 28, 0.06);
}

.carousel-slide {
  display: none;
  position: relative;
}

.carousel-slide-active {
  display: block;
}

.carousel-slide img {
  width: 100%;
  height: auto;
  min-height: 460px;
  max-height: 620px;
  object-fit: cover;
  display: block;
}

.carousel-caption {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: 0;
  padding: 12px 18px;
  border-radius: 0;
  background: rgba(19, 19, 19, 0.8);
  color: #ffffff;
  font-size: 0.9rem;
  line-height: 1.5;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 0 18px;
  z-index: 10;
}

.carousel-prev,
.carousel-next {
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: #131313;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  transition:
    background-color 180ms ease,
    transform 180ms ease;
}

.carousel-prev:hover,
.carousel-next:hover {
  background: #ffffff;
  transform: scale(1.08);
}

.carousel-indicators {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.carousel-indicator {
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: background-color 180ms ease;
}

.carousel-indicator-active {
  background: #ffffff;
}

.carousel-indicator:hover {
  background: rgba(255, 255, 255, 0.9);
}

@media (max-width: 820px) {
  .carousel-slide img {
    min-height: 300px;
    max-height: 420px;
  }

  .carousel-prev,
  .carousel-next {
    width: 36px;
    height: 36px;
    font-size: 1.5rem;
  }

  .carousel-indicator {
    width: 10px;
    height: 10px;
  }
}