.detail-page { background: var(--paper); }
.detail-header { color: var(--green-dark); }
.detail-hero { min-height: max(48rem, 100svh); position: relative; display: flex; align-items: flex-end; overflow: hidden; color: #fff; background: var(--green-dark); }
.detail-hero-media, .detail-hero-overlay { position: absolute; inset: 0; }
.detail-hero-media img { height: 100%; object-fit: cover; object-position: center 48%; animation: hero-in 1.2s var(--ease) both; }
.detail-hero-overlay { background: linear-gradient(0deg, rgba(12, 33, 26, .82) 0%, rgba(12, 33, 26, .32) 43%, rgba(12, 33, 26, .04) 75%); }
.detail-hero-copy { position: relative; z-index: 2; width: min(72rem, 84%); padding: calc(var(--header-h) + 5rem) var(--page) clamp(4rem, 7vw, 7rem); }
.detail-kind { margin: 0 0 1.5rem; font-size: var(--text-xs); letter-spacing: .1em; }
.detail-hero h1, .detail-intro h2, .detail-section-head h2, .size-copy h2, .materials h2, .selection h2 { margin: 0; font-family: var(--font-display); font-weight: 400; letter-spacing: -.06em; line-height: 1.05; }
.detail-hero h1 { max-width: 11ch; font-size: clamp(4rem, 7.5vw, 8.6rem); }
.detail-lead { margin: 2rem 0 0 8vw; }
.detail-price { margin: 1.2rem 0 0 8vw; font-weight: 600; }
.detail-price-note { margin: .25rem 0 0 8vw; color: rgba(255,255,255,.72); font-size: .72rem; }
.detail-hero-actions { display: flex; gap: 1rem; margin: 2rem 0 0 8vw; }
.detail-primary-link, .detail-secondary-link { min-height: 3.7rem; padding: 0 1.35rem; display: inline-flex; align-items: center; justify-content: space-between; gap: 3rem; border: 1px solid rgba(255,255,255,.7); font-size: var(--text-sm); font-weight: 600; }
.detail-primary-link { color: var(--green-dark); background: #fff; border-color: #fff; }

.detail-intro { padding-block: var(--section-y); display: grid; grid-template-columns: .72fr 2.65fr; gap: var(--gap); }
.detail-intro h2 { font-size: var(--title-md); }
.detail-intro p { width: min(30rem, 65%); margin: 2.5rem 0 0 auto; color: var(--muted); }
.detail-scene .hotspot-scene > img { object-position: center; }
.detail-included { width: max-content; margin: 1.5rem 0 0; padding: .4rem .65rem; border: 1px solid rgba(255,255,255,.35); font-size: .72rem; }
.detail-scene .product-panel h3 { margin-top: 2rem; }

.components { padding-block: var(--section-y); }
.detail-section-head { display: grid; grid-template-columns: .72fr 1.55fr .86fr; gap: var(--gap); align-items: end; margin-bottom: clamp(4rem, 7vw, 7rem); }
.detail-section-head h2 { font-size: var(--title-md); }
.detail-section-head > p { margin: 0; color: var(--muted); }
.components-flatlay { margin: 0; }
.components-flatlay img { aspect-ratio: 1.5 / 1; object-fit: cover; }
.components-flatlay figcaption { padding-top: .7rem; color: var(--muted); font-size: .68rem; }
.component-list { margin: clamp(3rem, 6vw, 6rem) 0 0 28%; padding: 0; list-style: none; counter-reset: component; border-top: 1px solid var(--ink); }
.component-list li { counter-increment: component; display: grid; grid-template-columns: 3.2rem 1fr auto; align-items: center; gap: 1rem; min-height: 5rem; border-bottom: 1px solid var(--line); }
.component-list li::before { content: counter(component, decimal-leading-zero); color: var(--orange); font-size: .7rem; }
.component-list strong { font-family: var(--font-display); font-size: clamp(1.35rem, 2vw, 2rem); font-weight: 400; letter-spacing: -.035em; }
.component-list span { color: var(--muted); font-size: var(--text-sm); }

.size-guide { padding-block: var(--section-y); display: grid; grid-template-columns: 1fr 1fr; gap: clamp(4rem, 10vw, 12rem); background: #e8e0cf; }
.size-copy h2 { margin-top: clamp(3rem, 5vw, 5rem); font-size: var(--title-sm); }
.size-copy > p { margin: 2rem 0 0; color: var(--muted); }
.size-specs { margin: 0; border-top: 1px solid var(--ink); }
.size-specs div { min-height: 5.5rem; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 1rem; border-bottom: 1px solid var(--line); }
.size-specs dt { font-weight: 600; }
.size-specs dd { margin: 0; color: var(--muted); }

.materials { display: grid; grid-template-columns: 1.45fr .8fr; min-height: 48rem; background: var(--paper-light); }
.materials-image { min-height: 48rem; overflow: hidden; }
.materials-image img { height: 100%; object-fit: cover; }
.materials-copy { padding: clamp(5rem, 9vw, 9rem) var(--page); align-self: center; }
.materials h2 { margin-top: 3rem; font-size: var(--title-sm); }
.materials-copy > p { margin: 2rem 0 0; color: var(--muted); }
.materials ul { margin: 3rem 0 0; padding: 1rem 0 0; display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; border-top: 1px solid var(--line); list-style: none; font-size: var(--text-sm); }

.installation { padding-block: var(--section-y); }
.detail-section-head.compact { grid-template-columns: .72fr 1.55fr .86fr; }
.install-steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); list-style: none; border-top: 1px solid var(--ink); }
.install-steps li { min-height: 15rem; padding: 1.4rem 1rem 1.2rem 0; display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.install-steps li:last-child { border-right: 0; }
.install-steps span { color: var(--orange); font-size: .7rem; }
.install-steps strong { margin-top: auto; font-family: var(--font-display); font-size: clamp(1.2rem, 1.8vw, 1.8rem); font-weight: 500; }
.install-steps p { margin: .7rem 0 0; color: var(--muted); font-size: var(--text-sm); }

.selection { padding-block: var(--section-y); color: #fff; background: var(--green-dark); }
.selection-head { display: grid; grid-template-columns: .72fr 2.65fr; gap: var(--gap); margin-bottom: clamp(4rem, 7vw, 7rem); }
.selection h2 { font-size: var(--title-md); }
.selection-paths { display: grid; grid-template-columns: 1.35fr .65fr; gap: 1px; background: rgba(255,255,255,.24); }
.selection-path { min-height: 12rem; padding: 2rem var(--page); display: grid; grid-template-columns: 3rem 1fr auto; grid-template-rows: 1fr auto; gap: .4rem 1rem; color: #fff; background: var(--green); border: 0; text-align: left; cursor: pointer; }
.selection-path-full { color: var(--green-dark); background: var(--yellow); }
.selection-path > span { grid-row: 1 / 3; font-size: .72rem; }
.selection-path strong { align-self: end; font-family: var(--font-display); font-size: clamp(1.5rem, 2.5vw, 3rem); font-weight: 400; letter-spacing: -.04em; }
.selection-path small { font-size: .7rem; opacity: .76; }
.selection-path i { grid-column: 3; grid-row: 1 / 3; align-self: center; font-style: normal; font-size: 1.5rem; }
.part-selector { padding-top: clamp(4rem, 7vw, 7rem); }
.part-selector-head { display: flex; justify-content: space-between; gap: 2rem; padding-bottom: 1rem; border-bottom: 1px solid rgba(255,255,255,.5); }
.part-selector-head p { margin: 0; }
.part-selector-head button { padding: 0; color: rgba(255,255,255,.68); background: none; border: 0; cursor: pointer; }
.part-options { display: grid; grid-template-columns: repeat(2, 1fr); }
.part-option { min-height: 5rem; padding: 0 1rem 0 0; display: grid; grid-template-columns: 2rem 1fr auto; align-items: center; gap: 1rem; color: #fff; background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,.22); cursor: pointer; text-align: left; }
.part-option:nth-child(odd) { margin-right: 2rem; }
.part-option .check { width: 1.35rem; height: 1.35rem; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; font-size: .7rem; }
.part-option.selected .check { color: var(--green-dark); background: var(--yellow); border-color: var(--yellow); }
.part-option small { color: rgba(255,255,255,.58); }

.institution .inquiry-status { margin: .7rem 0 0; color: rgba(255,255,255,.58); font-size: .72rem; }

@media (max-width: 900px) {
  .detail-hero { min-height: 100svh; }
  .detail-hero-media img { object-position: 35% center; }
  .detail-hero-overlay { background: linear-gradient(0deg, rgba(12,33,26,.92) 0%, rgba(12,33,26,.5) 46%, rgba(12,33,26,.08) 72%); }
  .detail-hero-copy { width: 100%; padding: calc(var(--header-h) + 8rem) var(--page) 3rem; }
  .detail-hero h1 { font-size: clamp(2.85rem, 12vw, 4.8rem); line-height: 1.06; }
  .detail-lead, .detail-price, .detail-price-note, .detail-hero-actions { margin-left: .35rem; }
  .detail-lead { max-width: 21rem; }
  .detail-hero-actions { gap: .6rem; }
  .detail-primary-link, .detail-secondary-link { padding: 0 .9rem; gap: .6rem; }
  .detail-intro { grid-template-columns: 1fr; gap: 3rem; }
  .detail-intro p { width: 82%; }
  .detail-scene .hotspot-scene { aspect-ratio: 1.5 / 1; }
  .detail-scene .hotspot-scene > img { object-position: center; }
  .detail-section-head, .detail-section-head.compact { grid-template-columns: 1fr; align-items: start; }
  .detail-section-head > p { width: 82%; margin-left: auto; }
  .components-flatlay img { aspect-ratio: .82 / 1; object-position: center; }
  .component-list { margin-left: 0; }
  .component-list li { grid-template-columns: 2.6rem 1fr; }
  .component-list span { grid-column: 2; margin-top: -.8rem; padding-bottom: .9rem; }
  .size-guide { grid-template-columns: 1fr; gap: 4rem; }
  .size-specs div { grid-template-columns: 1fr; gap: .15rem; padding: 1rem 0; }
  .materials { grid-template-columns: 1fr; }
  .materials-image { min-height: 0; aspect-ratio: .8 / 1; }
  .materials-copy { padding-block: 6rem; }
  .install-steps { grid-template-columns: 1fr; }
  .install-steps li { min-height: 0; padding: 1.3rem 0; display: grid; grid-template-columns: 2.5rem 1fr; border-right: 0; border-bottom: 1px solid var(--line); }
  .install-steps strong { margin: 0; }
  .install-steps p { grid-column: 2; }
  .selection-head { grid-template-columns: 1fr; }
  .selection-paths { grid-template-columns: 1fr; }
  .selection-path { min-height: 9rem; grid-template-columns: 2rem 1fr auto; }
  .selection-path strong { font-size: 1.8rem; }
  .part-options { grid-template-columns: 1fr; }
  .part-option:nth-child(odd) { margin-right: 0; }
  .detail-page .product-sheet .detail-included { margin-bottom: 1.5rem; }
}

@media (max-width: 520px) {
  .detail-hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .detail-primary-link, .detail-secondary-link { min-height: 3.25rem; }
  .detail-kind { margin-bottom: 1rem; }
  .component-list strong { font-size: 1.25rem; }
}