.product-detail-hero { min-height: 650px; padding: 90px 0; color: white; background: radial-gradient(circle at 82% 28%, rgba(0,167,200,.2), transparent 30%), linear-gradient(120deg, var(--navy-950), var(--navy-800)); overflow: hidden; }
.product-detail-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 70px; align-items: center; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 42px; color: rgba(255,255,255,.5); font-size: 12px; }
.breadcrumb a:hover { color: var(--cyan-light); }
.breadcrumb b { color: white; }
.product-detail-copy h1 { margin: 0; max-width: 660px; font-size: clamp(48px, 5vw, 78px); line-height: 1.12; letter-spacing: -.04em; }
.product-detail-copy h1.long-title { max-width: 720px; font-size: clamp(38px, 3.8vw, 58px); line-height: 1.18; text-wrap: balance; }
.product-detail-lead { max-width: 650px; margin: 25px 0 34px; color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.9; }
.product-detail-visual { position: relative; isolation: isolate; margin: 0; min-height: 465px; display: grid; place-items: center; overflow: hidden; background: radial-gradient(circle at 52% 45%, rgba(30,190,219,.2), transparent 38%), linear-gradient(145deg, #123e54 0%, #062d43 52%, #031d2c 100%); border: 1px solid rgba(109,226,238,.32); box-shadow: 0 38px 90px rgba(0,0,0,.3), inset 0 0 70px rgba(0,167,200,.08); }
.product-detail-visual::before { content: ""; position: absolute; inset: 18px; z-index: -1; border: 1px solid rgba(109,226,238,.18); background-image: linear-gradient(rgba(109,226,238,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(109,226,238,.055) 1px, transparent 1px); background-size: 34px 34px; pointer-events: none; }
.product-detail-visual::after { content: ""; position: absolute; z-index: -1; width: 72%; height: 42px; left: 14%; bottom: 48px; border-radius: 50%; background: rgba(0,0,0,.34); filter: blur(17px); }
.product-detail-visual img { position: relative; z-index: 1; width: 100%; height: 100%; min-height: 465px; padding: 34px; object-fit: contain; filter: drop-shadow(0 24px 22px rgba(0,0,0,.4)); }
.product-detail-visual figcaption { position: absolute; z-index: 3; right: 18px; bottom: 15px; padding: 7px 10px; border: 1px solid rgba(109,226,238,.2); background: rgba(3,29,44,.82); color: rgba(255,255,255,.78); font-size: 10px; }

.detail-highlights { position: relative; z-index: 2; margin-top: -38px; }
.detail-highlights-grid { display: grid; grid-template-columns: repeat(3, 1fr); background: white; box-shadow: var(--shadow); }
.detail-highlight { min-height: 125px; padding: 28px 32px; border-right: 1px solid var(--line); }
.detail-highlight:last-child { border: 0; }
.detail-highlight small { display: block; margin-bottom: 5px; color: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.detail-highlight strong { color: var(--navy-900); font-size: 21px; }
.detail-highlight p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }

.detail-process { background: white; }
.detail-process-list { display: grid; grid-template-columns: repeat(5, 1fr); margin: 0; padding: 0; list-style: none; counter-reset: process; }
.detail-process-list li { position: relative; min-height: 175px; padding: 30px 26px; background: var(--mist); border-right: 4px solid white; }
.detail-process-list li::after { content: "→"; position: absolute; right: -12px; top: 50%; z-index: 2; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: var(--cyan); color: white; font-size: 13px; }
.detail-process-list li:last-child::after { display: none; }
.detail-process-list span { display: block; color: rgba(6,45,67,.15); font-size: 34px; font-weight: 900; }
.detail-process-list h3 { margin: 20px 0 7px; font-size: 17px; }
.detail-process-list p { margin: 0; color: var(--muted); font-size: 12px; }

.detail-applications { background: var(--ice); }
.detail-two-column { display: grid; grid-template-columns: 1fr .8fr; gap: 100px; align-items: start; }
.detail-two-column h2, .project-evidence h2 { margin: 0 0 30px; color: var(--navy-900); font-size: clamp(34px, 4vw, 50px); line-height: 1.25; }
.application-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.application-list div { padding: 22px 12px 22px 0; border-bottom: 1px solid var(--line); }
.application-list b { display: block; color: var(--navy-900); font-size: 16px; }
.application-list span { color: var(--muted); font-size: 12px; }
.selection-card { padding: 44px; background: var(--navy-900); color: white; box-shadow: var(--shadow); }
.selection-card h3 { margin: 0 0 22px; font-size: 28px; }
.selection-card ul { display: grid; gap: 12px; margin: 0 0 30px; padding: 0; list-style: none; color: rgba(255,255,255,.7); font-size: 13px; }
.selection-card li::before { content: "✓"; margin-right: 10px; color: var(--cyan-light); }

.detail-knowledge { background: white; }
.knowledge-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.knowledge-card { position: relative; min-height: 245px; padding: 34px 34px 32px; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(145deg, #fff 0%, #fff 76%, #f4f9fa 100%); transition: .25s; }
.knowledge-card::before { content: ""; position: absolute; left: 0; top: 0; width: 4px; height: 56px; background: var(--cyan); }
.knowledge-card:hover { transform: translateY(-4px); border-color: var(--cyan); box-shadow: var(--shadow); }
.knowledge-card span { color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.knowledge-card h3 { margin: 13px 0 12px; color: var(--navy-900); font-size: 21px; }
.knowledge-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.source-note { margin-top: 24px; padding: 18px 22px; background: var(--mist); color: var(--muted); font-size: 11px; }
.source-note a { color: var(--navy-800); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

.project-evidence { background: var(--mist); }
.project-evidence-grid { display: grid; grid-template-columns: 1fr; gap: 52px; }
.project-evidence-grid > div:first-child { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: end; }
.project-evidence-grid > div:first-child .eyebrow { grid-column: 1 / -1; margin-bottom: -32px; }
.project-evidence-grid > div:first-child h2 { margin-bottom: 0; }
.project-evidence-grid > div:first-child > p:last-child { max-width: 680px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.evidence-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.evidence-cards article { position: relative; min-height: 250px; padding: 32px 30px; background: white; border-top: 3px solid var(--cyan); box-shadow: 0 12px 36px rgba(4,37,53,.06); }
.evidence-cards article:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -19px; top: 46px; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%; background: var(--navy-900); color: white; font-size: 12px; }
.evidence-cards span { color: rgba(6,45,67,.16); font-size: 36px; font-weight: 900; }
.evidence-cards h3 { margin: 42px 0 10px; color: var(--navy-900); font-size: 20px; }
.evidence-cards p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

.detail-cta { padding: 65px 0; background: var(--navy-900); color: white; }
.detail-cta .container { display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.detail-cta h2 { margin: 0; font-size: clamp(30px, 3.4vw, 46px); }
.detail-cta .container > div:last-child { display: flex; align-items: center; gap: 28px; font-weight: 700; }
.compact-footer { padding-top: 10px; }
.compact-footer .footer-bottom { margin-top: 0; }

@media (max-width: 1040px) {
  .product-detail-grid { gap: 40px; }
  .product-detail-visual, .product-detail-visual img { min-height: 380px; }
  .detail-two-column, .project-evidence-grid { gap: 50px; }
  .project-evidence-grid > div:first-child { gap: 45px; }
  .evidence-cards { grid-template-columns: repeat(2, 1fr); }
  .evidence-cards article:nth-child(2)::after { display: none; }
  .detail-process-list { grid-template-columns: repeat(3, 1fr); gap: 4px 0; }
}

@media (max-width: 820px) {
  .product-detail-hero { padding: 65px 0 80px; }
  .product-detail-grid, .detail-two-column, .project-evidence-grid { grid-template-columns: 1fr; }
  .project-evidence-grid > div:first-child { grid-template-columns: 1fr; gap: 18px; }
  .project-evidence-grid > div:first-child .eyebrow { grid-column: auto; margin-bottom: 0; }
  .product-detail-copy h1 { font-size: 50px; }
  .product-detail-visual, .product-detail-visual img { min-height: 330px; }
  .detail-highlights-grid { grid-template-columns: 1fr; }
  .detail-highlight { border-right: 0; border-bottom: 1px solid var(--line); }
  .detail-process-list { grid-template-columns: 1fr 1fr; }
  .knowledge-grid { grid-template-columns: 1fr; }
  .detail-cta .container, .detail-cta .container > div:last-child { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
  .product-detail-hero { padding-top: 45px; }
  .breadcrumb { margin-bottom: 28px; }
  .product-detail-copy h1 { font-size: 40px; }
  .product-detail-lead { font-size: 14px; }
  .product-detail-visual, .product-detail-visual img { min-height: 245px; }
  .product-detail-visual img { padding: 20px; }
  .detail-process-list, .application-list, .evidence-cards { grid-template-columns: 1fr; }
  .evidence-cards article::after { display: none !important; }
  .detail-process-list li { min-height: 145px; border: 0; border-bottom: 4px solid white; }
  .detail-process-list li::after { display: none; }
  .selection-card { padding: 30px 24px; }
  .detail-cta .container > div:last-child { gap: 16px; }
}