html { scroll-behavior: auto; }
.skip-link { position: fixed; z-index: 99; left: 12px; top: 12px; transform: translateY(-160%); background: #fff; color: #07182d; padding: 12px 16px; font-weight: 700; }
.skip-link:focus { transform: none; }
:focus-visible { outline: 3px solid #59d4ff; outline-offset: 4px; }
.detail-card.actionable { transition: background .2s; }
.detail-card.actionable:hover { background: #f0f9fd; }
.contact-action { display: block; margin-top: 28px; color: #0d82c7; font-size: 11px; }
.not-found { min-height: 100vh; padding: 12vh var(--pad); background: radial-gradient(circle at 75% 35%, #124466, transparent 30%), #07182d; color: #fff; }
.not-found > .brand { margin-bottom: 15vh; }
.not-found > span { font-size: 10px; letter-spacing: .2em; color: #57d2ff; }
.not-found h1 { font-size: clamp(48px, 8vw, 100px); line-height: .95; margin: 25px 0; }
.not-found h1 small { font-size: .42em; color: #9db2c3; }
.not-found p { color: #9db2c3; line-height: 1.7; }
.not-found > div:last-child { display: flex; gap: 12px; margin-top: 35px; }
@media (max-width: 560px) { .not-found > div:last-child { align-items: flex-start; flex-direction: column; } }

.hero-explore { display: inline-flex; gap: 24px; margin-top: 24px; color: #67d9ff; font-size: 12px; font-weight: 700; }
.hero-photo { height: 570px; margin-left: 4vw; overflow: hidden; border: 1px solid rgba(105, 208, 246, .25); }
.hero-photo > picture, .hero-photo > picture > img { display: block; width: 100%; height: 100%; }
.hero-photo > picture > img { object-fit: cover; }
.hero-photo-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7, 24, 45, .5), transparent 45%), linear-gradient(0deg, rgba(7, 24, 45, .65), transparent 40%); }
.hero-photo-caption { position: absolute; left: 28px; bottom: 28px; display: flex; gap: 14px; align-items: flex-start; color: #c8eaf7; font-size: 9px; letter-spacing: .14em; line-height: 1.6; }
.hero-photo-caption b { color: #51d2ff; }

.product-index-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
body:has(.product-index) .page-hero { min-height: 430px; padding-top: 125px; padding-bottom: 55px; }
body:has(.product-index) .page-hero .page-breadcrumb { margin-bottom: 45px; }
.product-index-card { background: #fff; min-width: 0; }
.product-index-image { height: 260px; background: #f4f7f8; overflow: hidden; position: relative; }
.product-index-image img { width: 100%; height: 100%; object-fit: contain; padding: 24px; transition: transform .35s; }
.product-index-card:hover img { transform: scale(1.035); }
.product-index-image span { position: absolute; left: 20px; top: 18px; color: #0b84c4; font-size: 10px; }
.product-index-card > div:last-child { padding: 26px 28px 30px; }
.product-index-card p { color: #0d82c7; font-size: 9px; font-weight: 700; letter-spacing: .14em; margin: 0 0 13px; }
.product-index-card h3 { font-size: 21px; margin: 0 0 22px; }
.product-index-card b { color: #0d82c7; font-size: 11px; }

.product-hero { min-height: 730px; padding: 145px max(var(--pad), calc((100vw - var(--max))/2)) 70px; display: grid; grid-template-columns: 1fr 1fr; gap: 7vw; align-items: center; color: #fff; background: radial-gradient(circle at 78% 35%, #16496b, transparent 33%), #07182d; }
.product-hero h1 { font-size: clamp(43px, 5vw, 70px); line-height: 1.08; letter-spacing: -.035em; margin: 24px 0; }
.product-hero-copy > p { color: #b9cad7; line-height: 1.8; max-width: 650px; }
.product-hero-image { background: #fff; position: relative; height: 475px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-hero-image img { width: 100%; height: 100%; object-fit: contain; padding: 35px; }
.product-hero-image > span { position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 18px; background: rgba(7, 24, 45, .9); color: #b8d8e6; font-size: 9px; letter-spacing: .08em; }
.spec-table { border-top: 1px solid var(--line); border-left: 1px solid var(--line); display: grid; grid-template-columns: repeat(2, 1fr); }
.spec-table > div { min-height: 92px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 24px; }
.spec-table b { font-size: 13px; }
.spec-table span { color: #7d8c98; font-size: 12px; }
.product-applications { padding: 95px max(var(--pad), calc((100vw - var(--max))/2)); background: #08223c; color: #fff; display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; }
.product-applications h2 { font-size: clamp(32px, 3.4vw, 48px); margin: 18px 0; }
.product-applications > div:last-child { border-top: 1px solid #2b4a62; }
.product-applications a { padding: 24px 0; border-bottom: 1px solid #2b4a62; display: grid; grid-template-columns: 50px 1fr 20px; align-items: center; }
.product-applications a span { color: #56cef8; font-size: 10px; }
.product-applications a h3 { margin: 0; font-size: 18px; font-weight: 500; }
.product-applications a b { color: #56cef8; }
.brochure { display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; align-items: center; }
.brochure p { color: var(--muted); line-height: 1.8; }
.brochure-placeholder { min-height: 230px; border: 1px dashed #9eb3c0; background: #f6f9fa; padding: 40px; display: grid; align-content: center; justify-items: start; }
.brochure-placeholder > span { border: 1px solid #0d82c7; color: #0d82c7; padding: 6px 10px; font-size: 10px; }
.brochure-placeholder b { margin: 20px 0 8px; font-size: 20px; }
.brochure-placeholder small { color: #778a96; }
.related-products > div { margin-top: 35px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.related-products a { min-width: 0; background: #fff; padding: 20px; display: grid; grid-template-columns: 80px 1fr 20px; gap: 17px; align-items: center; }
.related-products img { width: 80px; height: 65px; object-fit: contain; background: #f4f7f8; }
.related-products span { font-size: 13px; font-weight: 600; }
.related-products b { color: #0d82c7; }
.dual-cta { display: flex; gap: 10px; }
.button-dark { background: #07182d; color: #fff; }
.enquiry-form { grid-column: 1 / -1; padding: clamp(28px, 5vw, 58px); background: #07182d; color: #fff; }
.form-heading { max-width: 720px; margin-bottom: 38px; }
.form-heading > span { color: #55d1ff; font-size: 9px; letter-spacing: .18em; }
.form-heading h3 { font-size: clamp(28px, 3vw, 42px); margin: 14px 0; }
.form-heading p { color: #a9bdcc; line-height: 1.75; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.form-grid label { display: grid; gap: 9px; align-content: start; }
.form-grid label > span { font-size: 12px; font-weight: 700; }
.form-wide { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea { width: 100%; border: 1px solid #37526a; background: #0b2238; color: #fff; padding: 14px 15px; font: inherit; border-radius: 0; }
.form-grid textarea { resize: vertical; min-height: 145px; }
.form-grid [aria-invalid="true"] { border-color: #ff8585; }
.form-grid small { min-height: 15px; color: #ff9d9d; font-size: 10px; }
.form-footer { display: flex; justify-content: space-between; align-items: center; gap: 30px; margin-top: 28px; }
.form-footer p { color: #8fa7b8; font-size: 11px; max-width: 580px; }
.form-status { margin-top: 22px; padding: 14px 16px; font-size: 12px; }
.form-status.is-success { background: #113d3b; color: #a4f3e7; }
.form-status.is-error { background: #48262d; color: #ffbec5; }

/* Phase 4 Lighthouse contrast corrections: preserve the visual system while meeting WCAG AA. */
.section-label { color: #146b96; }
.card-no { color: #566d79; }
.card-link, .application-list b, .related-products b { color: #056d9f; }
.application-list span, .inner-intro span, .detail-card > span { color: #0b6f9f; }
.product-index-card > div > p, .product-index-card > div > b, .detail-card b.contact-action { color: #076fa8; }
.spec-table span { color: #5f727d; }
.contact-cta > div > span { color: #0d6e9b; }
.brochure-placeholder > span { border-color: #076fa8; color: #076fa8; }
.brochure-placeholder small { color: #5d707b; }
.footer-bottom { color: #8da0af; }
.button-primary, .header-cta { background: #076fa8; }
.button-primary:hover { background: #095f8f; }

/* Prevent full-page capture and long-scroll layouts from repeating the application heading. */
.application-title { position: static; }

@media (max-width: 900px) {
  .hero-photo { margin-left: 0; }
  .product-hero { grid-template-columns: 1fr; }
  .product-hero-image { height: 410px; }
  .product-applications, .brochure { grid-template-columns: 1fr; }
  .related-products > div { grid-template-columns: 1fr; }
}

@media (max-width: 650px) {
  .hero-photo { height: 350px; }
  .product-index-grid, .spec-table { grid-template-columns: 1fr; }
  .product-hero { padding-top: 120px; }
  .product-hero-image { height: 320px; }
  .dual-cta { flex-direction: column; align-items: stretch; width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .form-wide { grid-column: auto; }
  .form-footer { align-items: stretch; flex-direction: column; }
}