.detail-page { background: #f4f6f9; }
.detail-page .site-header { background: rgba(255,255,255,.94); }
.detail-page .nav-shell { grid-template-columns: 190px 1fr auto; }
.detail-page .nav-actions { display: flex; }
.detail-back { min-height: 44px; display: inline-flex; align-items: center; gap: 9px; color: var(--blue); font-size: .76rem; font-weight: 800; text-decoration: none; }
.detail-back img { width: 17px; height: 17px; transform: rotate(180deg); }

.detail-hero { min-height: calc(100vh - var(--header)); display: grid; grid-template-columns: 42% 58%; color: #fff; background: var(--deep); overflow: hidden; }
.detail-hero-copy { position: relative; z-index: 2; padding: clamp(90px, 11vw, 160px) var(--gutter) 64px max(var(--gutter), calc((100vw - var(--container)) / 2)); display: flex; flex-direction: column; justify-content: flex-end; }
.detail-index { position: absolute; top: 18px; left: max(var(--gutter), calc((100vw - var(--container)) / 2)); color: rgba(45,105,202,.28); font: 600 clamp(9rem, 18vw, 19rem)/.8 var(--display); }
.detail-breadcrumb { position: relative; margin-bottom: 22px; color: #a9c8ff; font-size: .69rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.detail-hero h1 { position: relative; max-width: 660px; margin-bottom: 24px; font-size: clamp(4.2rem, 7.3vw, 8rem); letter-spacing: -.035em; }
.detail-hero-lead { position: relative; max-width: 570px; margin-bottom: 30px; color: rgba(255,255,255,.82); font-size: clamp(1rem, 1.35vw, 1.2rem); }
.detail-hero-note { position: relative; margin: 28px 0 0; color: rgba(255,255,255,.58); font-size: .64rem; }
.detail-hero-media { position: relative; min-height: 660px; background: #d9dde4; }
.detail-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.detail-hero-media::after { content: ""; position: absolute; inset: 28px; border: 1px solid rgba(255,255,255,.62); pointer-events: none; }

.detail-intro { padding: clamp(64px, 8vw, 110px) 0; background: #f7f8fa; }
.detail-intro-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(48px, 8vw, 120px); align-items: start; }
.detail-intro h2 { max-width: 520px; color: var(--blue); font-size: clamp(3.7rem, 6vw, 6.5rem); }
.detail-intro-copy { max-width: 680px; }
.detail-intro-copy > p { color: #3f485a; font-size: clamp(1rem, 1.35vw, 1.14rem); }
.brief-points { margin-top: 38px; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #aeb9ca; }
.brief-point { min-height: 112px; padding: 22px 24px 20px 0; border-bottom: 1px solid #aeb9ca; }
.brief-point:nth-child(odd) { border-right: 1px solid #aeb9ca; }
.brief-point:nth-child(even) { padding-left: 24px; }
.brief-point span { display: block; margin-bottom: 8px; color: var(--electric); font: 600 .75rem var(--display); }
.brief-point strong { color: var(--deep); font-size: .78rem; line-height: 1.4; }

.detail-gallery { padding: 0 0 clamp(70px, 9vw, 120px); background: #f7f8fa; }
.detail-gallery-grid { display: grid; grid-template-columns: 1.25fr .75fr; grid-template-rows: 340px 340px; gap: 14px; }
.detail-gallery figure { position: relative; margin: 0; overflow: hidden; background: #d9dde4; }
.detail-gallery figure:first-child { grid-row: 1 / 3; }
.detail-gallery img { width: 100%; height: 100%; object-fit: cover; }
.detail-gallery figcaption { position: absolute; inset: auto 0 0; padding: 18px 20px; color: #fff; background: linear-gradient(transparent, rgba(7,28,86,.9)); font-size: .66rem; }

.detail-technical { position: relative; padding: clamp(70px, 8vw, 110px) 0; color: #fff; background: var(--deep); overflow: hidden; }
.detail-technical::before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(rgba(116,157,223,.32) 1px, transparent 1px), linear-gradient(90deg, rgba(116,157,223,.32) 1px, transparent 1px); background-size: 72px 72px; }
.technical-grid { position: relative; display: grid; grid-template-columns: .62fr 1.38fr; gap: clamp(45px, 8vw, 110px); }
.detail-technical h2 { margin-bottom: 22px; font-size: clamp(3.8rem, 6.3vw, 6.6rem); }
.technical-heading p { color: rgba(255,255,255,.7); }
.technical-table { width: 100%; border-collapse: collapse; }
.technical-table th, .technical-table td { padding: 19px 10px; vertical-align: top; border-bottom: 1px solid rgba(190,200,214,.46); text-align: left; }
.technical-table th { width: 31%; color: #a9c8ff; font-size: .69rem; letter-spacing: .04em; text-transform: uppercase; }
.technical-table td { color: rgba(255,255,255,.88); font-size: .78rem; }
.technical-disclaimer { margin: 18px 0 0; color: rgba(255,255,255,.58); font-size: .63rem; }

.detail-process { padding: clamp(68px, 8vw, 108px) 0; background: #fff; }
.detail-process h2 { max-width: 760px; margin-bottom: 46px; color: var(--blue); font-size: clamp(3.7rem, 6vw, 6.3rem); }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #aeb9ca; border-bottom: 1px solid #aeb9ca; }
.process-item { min-height: 180px; padding: 26px; border-left: 1px solid #aeb9ca; }
.process-item:first-child { border-left: 0; }
.process-item img { width: 27px; height: 27px; margin-bottom: 32px; }
.process-item h3 { margin-bottom: 11px; color: var(--deep); font-family: var(--body); font-size: .77rem; line-height: 1.3; text-transform: none; }
.process-item p { margin: 0; color: #566074; font-size: .7rem; }

.detail-cta { padding: clamp(62px, 8vw, 96px) 0; color: #fff; background: var(--electric); }
.detail-cta-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.detail-cta h2 { max-width: 820px; margin-bottom: 16px; font-size: clamp(4rem, 7vw, 7rem); }
.detail-cta p { max-width: 660px; margin: 0; color: rgba(255,255,255,.8); }
.detail-cta .button { color: var(--blue); background: #fff; white-space: nowrap; }
.detail-cta .button:hover { color: #fff; background: var(--deep); }

@media (max-width: 1050px) {
  .detail-page .desktop-nav { display: flex; gap: 24px; }
  .detail-page .nav-shell { grid-template-columns: 150px 1fr auto; }
  .detail-intro-grid, .technical-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-item:nth-child(3) { border-left: 0; border-top: 1px solid #aeb9ca; }
  .process-item:nth-child(4) { border-top: 1px solid #aeb9ca; }
  .detail-page .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .detail-page .footer-brand { justify-content: center; }
  .detail-page .site-footer nav { flex-wrap: wrap; }
  .detail-page .locale { text-align: center; }
}

@media (max-width: 767px) {
  .detail-page .desktop-nav { display: none; }
  .detail-page .nav-shell { grid-template-columns: 1fr auto; }
  .detail-hero { min-height: 0; grid-template-columns: 1fr; }
  .detail-hero-copy { min-height: 560px; padding: 125px var(--gutter) 46px; }
  .detail-hero-copy { min-width: 0; }
  .detail-hero .button { width: 100%; min-width: 0; white-space: normal; text-align: center; }
  .detail-index { left: var(--gutter); top: 35px; font-size: 8rem; }
  .detail-hero h1 { font-size: clamp(4.1rem, 18vw, 5.8rem); }
  .detail-hero-media { min-height: 460px; }
  .detail-hero-media::after { inset: 16px; }
  .detail-intro-grid { gap: 25px; }
  .brief-points { grid-template-columns: 1fr; }
  .brief-point:nth-child(odd) { border-right: 0; }
  .brief-point:nth-child(even) { padding-left: 0; }
  .detail-gallery-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; }
  .detail-gallery figure, .detail-gallery figure:first-child { min-width: 82vw; height: 480px; scroll-snap-align: start; }
  .technical-table, .technical-table tbody, .technical-table tr, .technical-table th, .technical-table td { display: block; width: 100%; }
  .technical-table tr { padding: 16px 0; border-bottom: 1px solid rgba(190,200,214,.46); }
  .technical-table th, .technical-table td { padding: 0; border: 0; }
  .technical-table th { margin-bottom: 8px; }
  .process-list { grid-template-columns: 1fr; }
  .process-item { min-height: 0; border-left: 0; border-top: 1px solid #aeb9ca; }
  .process-item:first-child { border-top: 0; }
  .detail-cta-grid { grid-template-columns: 1fr; align-items: start; }
  .detail-cta h2 { font-size: clamp(3.1rem, 14vw, 4.6rem); }
  .detail-cta .button { width: 100%; }
  .detail-cta .button { min-width: 0; white-space: normal; text-align: center; }
}

@media (hover: hover) and (pointer: fine) {
  .detail-gallery img { transition: transform 280ms var(--ease-out); }
  .detail-gallery figure:hover img { transform: scale(1.025); }
}

@media (prefers-reduced-motion: reduce) {
  .detail-gallery img, .detail-gallery figure:hover img { transform: none; transition: none; }
}