/* Review pass 2: optical sizing, readable navigation and aligned product grids. */
:root {
  --content-max: 1320px;
  --page-gutter: clamp(22px, 4vw, 56px);
  --column-gap: clamp(32px, 5vw, 72px);
  --header-height: 90px;
  --outside-gutter: max(var(--page-gutter), calc((100vw - var(--content-max)) / 2));
}

html { scroll-padding-top: calc(var(--header-height) + 30px); }
html:has(.page-section-nav) { scroll-padding-top: calc(var(--header-height) + 90px); }
.container { width: calc(100% - var(--page-gutter) * 2); max-width: var(--content-max); }
.medium-container { max-width: 1080px; }
.large-container { max-width: var(--content-max); }
.grid-layout, .page-hero-layout, .bulk-enquiry-layout { min-width: 0; }
.grid-layout > *, .page-hero-layout > *, .bulk-enquiry-layout > * { min-width: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
.btn { font-size: 14px; min-height: 54px; }
.text-link, .btn-link, .bulk-text-link { font-size: 14px; }
.btn-small { font-size: 12px; }

/* Navigation stays readable; the menu changes layout before it becomes cramped. */
.header-inner { height: var(--header-height); gap: 30px; }
.brand img { width: 220px; height: 42px; }
.mobile-nav-head img { width: 220px; max-width: calc(100% - 64px); height: auto; }
.site-footer .footer-brand > a { align-items: center; }
.site-footer .footer-brand img { width: 235px; max-width: 100%; height: auto; }
.desktop-nav { gap: clamp(20px, 1.8vw, 28px); font-size: 15px; font-weight: 550; }
.desktop-nav > a, .nav-products { min-height: 44px; line-height: 1.4; }
.nav-products { font-size: inherit; gap: 7px; }
.desktop-nav > a::after, .nav-products::after { bottom: 24px; }
.header-actions { gap: 12px; flex-shrink: 0; }
.header-contact { font-size: 14px; padding-left: 20px; gap: 14px; }
.utility-bar { font-size: 11px; }
.utility-bar > .container { height: 33px; }
.utility-bar a { font-size: 11px; }
.products-navigation { position: static; }
.mega-menu { left: 0; right: 0; top: 100%; width: auto; padding: 30px var(--outside-gutter) 32px; max-height: calc(100dvh - var(--header-height) - 48px); overflow-y: auto; overscroll-behavior: contain; }
.mega-heading { font-size: 11px; margin-bottom: 24px; }
.mega-heading a { font-size: 11px; }
.mega-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.mega-product { padding: 18px; min-width: 0; font-size: 15px; grid-template-columns: minmax(0, 1fr) 23px; align-items: start; }
.mega-image { height: 148px; }
.mega-image img { max-height: 134px; }
.mega-product > span:not(.mega-image) { min-height: 45px; }
.mega-oem { display: grid; grid-template-columns: auto minmax(0, 1fr) 24px; align-items: center; gap: 28px; padding: 22px 24px; margin-top: 24px; background: var(--cream); border-top: 1px solid var(--gold); }
.mega-oem-label { color: var(--navy); font-family: var(--heading); font-size: 20px; font-weight: 650; letter-spacing: -.03em; }
.mega-oem > span:nth-child(2) { color: var(--body); font-size: 14px; }
.mega-oem > svg { width: 23px; height: 23px; color: var(--navy); }
.mega-oem:hover { background: var(--gold-light); }

/* The same transparent logo stays in place while the surrounding bar recedes. */
.site-header {
  background: transparent;
  border-bottom: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  isolation: isolate;
  pointer-events: none;
}
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transform: translate3d(0,0,0);
  opacity: 1;
  transition: transform 640ms cubic-bezier(.22,.68,0,1), opacity 500ms ease;
  will-change: transform, opacity;
}
.site-header .header-inner { position: static; pointer-events: auto; }
.site-header .brand {
  position: relative;
  z-index: 2;
  pointer-events: auto;
  transform-origin: left center;
  transform: translate3d(0,0,0) scale(1);
  transition: transform 640ms cubic-bezier(.22,.68,0,1);
  background: none;
  border: 0;
  box-shadow: none;
}
.site-header .brand img { transition: filter 300ms ease 100ms; }
.site-header .desktop-nav, .site-header .header-actions {
  opacity: 1;
  visibility: visible;
  transition: opacity 280ms ease, transform 520ms cubic-bezier(.22,.68,0,1), visibility 0s;
}
/* Keep the dropdown's containing block on the full-width sticky header. */
.site-header .desktop-nav { transform: none; transition: opacity 280ms ease, visibility 0s; }
.site-header .header-actions { transform: translate3d(0,0,0); }
.header-is-floating .site-header::before { transform: translate3d(0,-105%,0); opacity: 0; }
.header-is-floating .site-header .header-inner { pointer-events: none; }
.header-is-floating .site-header .brand { transform: translate3d(0,-4px,0) scale(.9); }
.header-is-floating .site-header .brand img { filter: drop-shadow(0 1px 2px #ffffff8c); }
.header-is-floating.floating-brand-on-dark .site-header .brand img { filter: brightness(0) invert(1) drop-shadow(0 1px 2px #08243e33); }
.header-is-floating .site-header .desktop-nav, .header-is-floating .site-header .header-actions {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 200ms ease, transform 500ms cubic-bezier(.22,.68,0,1), visibility 0s linear 250ms;
}
.header-is-floating .site-header .desktop-nav { transform: none; transition: opacity 200ms ease, visibility 0s linear 250ms; }
.header-is-floating .site-header .header-actions { transform: translate3d(0,-12px,0); }
.page-section-nav { transition: opacity 260ms ease, transform 520ms cubic-bezier(.22,.68,0,1), visibility 0s; }
.header-is-floating .page-section-nav {
  transform: translate3d(0,-110%,0);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 200ms ease, transform 500ms cubic-bezier(.22,.68,0,1), visibility 0s linear 250ms;
}

/* One alignment grid throughout the homepage, including the full-bleed split. */
.home-hero { min-height: min(810px, max(700px, calc(100svh - 90px))); }
.home-hero-inner { min-height: inherit; display: flex; flex-direction: column; padding-top: clamp(52px, 5.3vw, 82px); padding-bottom: 26px; }
.hero-media { inset: 0; }
.hero-media > img { opacity: 1; object-position: center; }
.hero-scrim { background: linear-gradient(90deg, #08243ef2 0%, #08243ed9 28%, #08243e9c 53%, #08243e1a 100%); }
.home-hero h1 { max-width: 1160px; font-size: clamp(60px, 6.7vw, 104px); line-height: 1.08; margin-bottom: 32px; text-wrap: initial; }
.hero-lower { gap: 64px; max-width: 1050px; margin-bottom: 40px; align-items: center; }
.hero-lower > p { max-width: 420px; font-size: 16px; line-height: 1.8; }
.hero-buttons { flex-shrink: 0; gap: 26px; }
.hero-buttons .btn { font-size: 14px; }
.hero-text-link { font-size: 14px; }
.hero-baseline { margin-top: auto; padding-top: 20px; font-size: 10px; letter-spacing: .1em; }
.hero-baseline > a { font-size: 11px; }
.product-preview-section { padding-block: 56px; }
.product-preview-section .section-title { max-width: 750px; font-size: clamp(32px, 3.2vw, 44px); margin-bottom: 32px; }
.product-feature-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.product-feature-card { display: flex; flex-direction: column; min-width: 0; }
.product-feature-image { height: auto; aspect-ratio: 4 / 3; min-height: 0; flex-shrink: 0; border: 0; }
.product-feature-image > img, .product-feature-3 .product-feature-image > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; mix-blend-mode: normal; }
.product-feature-copy { display: flex; flex-direction: column; flex: 1; padding: 20px 0 0; align-items: flex-start; }
.product-feature-copy h3 { min-height: 2.7em; font-size: 22px; line-height: 1.35; margin-bottom: 12px; }
.product-feature-copy p { font-size: 13.5px; line-height: 1.75; margin-bottom: 18px; max-width: 60ch; }
.product-feature-copy .text-link { font-size: 13px; margin-top: auto; min-height: 42px; padding-bottom: 2px; border-bottom: 1px solid var(--gold); }
.bulk-home-panel { gap: var(--column-gap); grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
.bulk-home-section p:not(.bulk-eyebrow) { max-width: 60ch; font-size: 16px; }
.bulk-home-chemistries { align-self: center; }
.about-section .grid-layout { gap: var(--column-gap); align-items: center; }
.about-section p:not(.eyebrow) { font-size: 16px; line-height: 1.9; max-width: 62ch; }
.about-section .image-content { height: 590px; }
.about-section .image-content .about-vials-image { object-position: 100% 50%; filter: none; }
.application-support-section .container { max-width: var(--content-max); width: calc(100% - var(--page-gutter) * 2); gap: var(--column-gap); grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: stretch; }
.application-support-section .image-content { margin-left: calc(-1 * var(--outside-gutter)); width: calc(100% + var(--outside-gutter)); min-height: 660px; }
.application-support-section .image-content .support-collaboration-image { object-position: 50% 18%; filter: saturate(.94); }
.application-support-section .image-content::after { background: rgba(16,58,96,.06); }
.application-support-section .text-content { padding: 78px 0; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.application-support-section h2 { max-width: 570px; }
.application-support-section p:not(.eyebrow) { font-size: 16px; line-height: 1.9; max-width: 60ch; }
.application-support-section .btn { margin-top: 16px; }
.why-choose-us .section-title { max-width: none; margin-inline: 0; text-align: left; }
.features-grid-alt { gap: 44px; align-items: start; }
.feature-item-alt h4 { font-size: 15px; }
.feature-item-alt p { font-size: 15px; line-height: 1.9; }
.faq-layout { grid-template-columns: minmax(0, .9fr) minmax(0, 1.3fr); gap: var(--column-gap); }
.faq-item summary { font-size: 17px; }
.faq-answer { font-size: 15px; }
.updates-section li { font-size: 15px; }
.updates-section li > a { font-size: 13px; }

/* The artwork fills an optical viewport, eliminating white source padding.
   Logos remain the original, unedited files and use their original colours. */
.trusted-by-section { padding: 40px 0 44px; background: white; }
.trusted-by-section > .container { display: block; }
.trust-heading { display: flex; align-items: center; gap: 30px; margin-bottom: 22px; }
.trust-heading h2 { font-family: var(--font); font-weight: 500; font-size: 19px; line-height: 1.5; letter-spacing: -.01em; margin: 0; white-space: nowrap; }
.trust-heading > span { height: 1px; width: 100%; background: var(--line); }
.client-logo-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.client-logo { min-height: 128px; padding: 16px 24px; display: grid; place-items: center; border-bottom: 1px solid #e9edf0; border-right: 1px solid #e9edf0; }
.client-logo:nth-child(4n) { border-right: 0; }
.client-logo:nth-last-child(-n+4) { border-bottom: 0; }
.client-logo-mark { display: block; width: min(85%, calc(var(--mark-width, 184px) * .85)); height: calc(var(--mark-height, 90px) * .85); overflow: hidden; }
.client-logo-mark image { filter: none; opacity: 1; }

/* Equal visual rows for every catalogue; original product photos are unchanged. */
.product-grid-spe { align-items: stretch; gap: 26px; }
.spe-card-inner { height: 100%; }
.spe-card-front { height: 100%; display: flex; flex-direction: column; }
.spe-card-front .image-wrapper { position: relative; flex-shrink: 0; height: 220px; }
.spe-card-front .image-wrapper img { max-height: 180px; }
.spe-card-front h4 { min-height: 1.35em; line-height: 1.35; }
.spe-card-front p { font-size: 14px; min-height: 3.4em; line-height: 1.7; margin-bottom: 22px; }
.spe-card-front .btn-flip { margin-top: auto; font-size: 13px; min-height: 48px; align-items: center; }
.product-grid-vials { gap: 24px; align-items: stretch; }
.product-item-vial .image-wrapper { position: relative; height: 215px; }
.product-item-vial .image-wrapper img { max-height: 164px; }
.product-item-vial h4 { font-size: 15px; min-height: 3em; line-height: 1.5; }
.product-item-vial p { font-size: 12px; min-height: 2em; }
.catalogue-enquire { font-size: 12px; min-height: 46px; }
.catalogue-toolbar { gap: 28px; }
.filter-chip { font-size: 13px; min-height: 44px; }
.sample-prep-grid { gap: 32px; align-items: stretch; }
.sample-prep-card { display: flex; flex-direction: column; }
.sample-prep-image-wrap { --instrument-inset: clamp(16px, 2vw, 28px); position: relative; height: auto; aspect-ratio: 4 / 3; flex-shrink: 0; padding: 0; overflow: hidden; background: #f4f1ec; }
.sample-prep-image-wrap img { position: absolute; inset: var(--instrument-inset); width: calc(100% - var(--instrument-inset) * 2); height: calc(100% - var(--instrument-inset) * 2); object-fit: contain; object-position: center; }
.sample-preparation-systems .page-hero-image { height: auto; aspect-ratio: 4 / 3; }
.sample-prep-card-body { display: flex; flex-direction: column; flex: 1; align-items: stretch; padding: 32px; }
.sample-prep-card h3 { min-height: 2.5em; font-size: 30px; line-height: 1.25; margin-bottom: 16px; }
.sample-prep-card-body > p:not(.blog-card-meta) { min-height: 5.55em; font-size: 15px; line-height: 1.85; }
.blog-card-meta { font-size: 11px; min-height: 1.8em; }
.instrument-details { border-top: 1px solid var(--line); margin-top: auto; }
.instrument-details > summary { display: flex; align-items: center; justify-content: space-between; min-height: 58px; gap: 16px; font-size: 14px; font-weight: 500; line-height: 1.6; color: var(--navy); cursor: pointer; list-style: none; }
.instrument-details > summary::-webkit-details-marker { display: none; }
.instrument-details > summary > span { font-size: 25px; font-weight: 400; color: var(--gold); transition: transform .25s; }
.instrument-details[open] > summary > span { transform: rotate(45deg); }
.instrument-details-content { padding: 0 0 18px; }
.instrument-details-content .sample-prep-highlights { font-size: 14px; }
.instrument-details-content .sample-prep-specs > div { font-size: 13px; }
.instrument-enquire { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); border-bottom: 0; justify-content: space-between; font-size: 13px; }
.sample-prep-cert-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.sample-prep-cert-list span { padding: 8px 12px; border: 1px solid var(--line); font-size: 12px; line-height: 1.6; color: var(--navy); }
.sample-prep-cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.sample-prep-cta-actions .btn { margin: 0; }
.sample-prep-support .container { align-items: start; gap: var(--column-gap); }
.bulk-chemistry-grid { align-items: stretch; gap: 26px; }
.bulk-card-type { font-size: 11px; min-height: 3.4em; }
.bulk-chemistry-card p:not(.bulk-card-type) { font-size: 14px; }
.bulk-chemistry-link { font-size: 13px; }

/* A quiet product section bar, informed by consumer hardware product pages. */
.page-section-nav { position: sticky; top: var(--header-height); z-index: 80; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.page-section-nav > .container { display: flex; align-items: center; gap: 32px; min-height: 59px; overflow-x: auto; scrollbar-width: none; }
.page-section-nav > .container::-webkit-scrollbar { display: none; }
.page-section-nav a { display: inline-flex; gap: 12px; align-items: center; min-height: 59px; flex-shrink: 0; white-space: nowrap; font-size: 13px; font-weight: 500; color: var(--body); border-bottom: 2px solid transparent; }
.page-section-nav a.active, .page-section-nav a:hover { color: var(--navy); border-bottom-color: var(--gold); }
.page-section-nav .section-quote { margin-left: auto; color: var(--navy); }
.section-quote svg { width: 19px; height: 19px; }

/* Product inspection uses the original photograph, with native keyboard focus. */
.product-zoom { position: absolute; bottom: 13px; right: 13px; display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; padding: 9px; border: 1px solid #cdd7dd; border-radius: 50%; background: #fffffff0; color: var(--navy); transition: background .2s, border-color .2s; }
.product-zoom svg { width: 20px; height: 20px; }
.product-zoom:hover { background: var(--gold-light); border-color: var(--gold); }
.product-image-dialog { width: 1000px; padding: 24px 30px 30px; }
.image-dialog-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 12px; }
.image-dialog-header .eyebrow { margin: 0; font-size: 10px; color: var(--muted); }
.product-image-dialog h2 { font-size: 27px; margin-bottom: 20px; }
.image-dialog-stage { display: flex; align-items: center; justify-content: center; min-height: 250px; height: min(61vh, 640px); padding: 25px; background: var(--mist); }
.image-dialog-stage img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }

/* Reading layouts and control baselines. */
.page-hero-copy > p:not(.eyebrow) { max-width: 64ch; }
.page-hero-image { align-self: center; }
.bulk-enquiry-layout, .contact-page-section > .container { gap: var(--column-gap); }
.bulk-enquiry-form, .styled-form { min-width: 0; }
.form-row { align-items: start; }
.form-group label { font-size: 13px; min-height: 1.7em; }
.form-group input:not([type=checkbox]), .form-group textarea, .form-group select { font-size: 14px; min-height: 50px; }
.directory-toolbar { align-items: center; }
.directory-search, .chemistry-select select { min-height: 54px; }
.directory-search input { font-size: 14px; }
.chemistry-select select { height: 54px; font-size: 13px; }
.directory-count { font-size: 12px; }
.data-table { font-size: 14px; }
.data-table th { font-size: 12px; }
.data-table td { font-size: 14px; }
.table-scroll-hint { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 0 0 10px; font-size: 11px; color: var(--muted); }
.table-scroll-hint > span { font-size: 20px; color: var(--navy); }
.blog-grid { grid-template-columns: repeat(2, minmax(0,1fr)); align-items: stretch; gap: 32px; }
.blog-card, .blog-card-content { display: flex; flex-direction: column; }
.blog-card-content { flex: 1; align-items: flex-start; }
.blog-card-content .btn { margin-top: auto; }
.blog-card-image, .blog-card-muted .blog-card-image { height: auto; aspect-ratio: 1.6; object-fit: cover; }
.blog-card-muted { margin-top: 0; }
.blog-card-content h3 { font-size: 29px; }
.blog-card-content p:not(.blog-card-meta) { margin-bottom: 28px; font-size: 15px; }
.article-body { max-width: 75ch; }
.article-body h2 { scroll-margin-top: calc(var(--header-height) + 25px); }
.footer-top { align-items: start; }
.footer-top h3 { min-height: 18px; }
.footer-top > div > a:not(.footer-brand > a) { font-size: 13px; line-height: 1.7; }
.footer-brand p { font-size: 13px; }
.footer-bottom { font-size: 10px; }
.footer-bottom > div { gap: 20px; }

/* OEM enquiries: product choices first, then company details and a local review. */
.oem-hero .page-hero-copy h1 { font-size: clamp(48px, 5.3vw, 80px); }
.oem-hero .page-hero-copy h1 > span { color: var(--gold-light); }
.oem-hero .hero-text-link { margin-top: 24px; }
.oem-hero-range { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-self: center; }
.oem-hero-range > div { padding: 14px; background: #ffffff0d; border: 1px solid #ffffff26; min-width: 0; }
.oem-hero-range img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #f4f1ec; }
.oem-hero-range span { display: block; padding: 15px 2px 2px; min-height: 3.4em; font-size: 13px; font-weight: 500; line-height: 1.5; color: #fff; }
.oem-enquiry-layout { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: var(--column-gap); align-items: start; }
.oem-intro { position: sticky; top: calc(var(--header-height) + 36px); }
.oem-intro h2 { font-size: clamp(34px, 3.4vw, 48px); margin-bottom: 24px; }
.oem-intro > p:not(.eyebrow) { max-width: 43ch; font-size: 15px; line-height: 1.9; }
.oem-steps { list-style: none; padding: 0; margin: 35px 0; }
.oem-steps li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 18px; padding: 23px 0; border-top: 1px solid var(--line); }
.oem-steps li > span { color: var(--gold); font-family: var(--heading); font-size: 20px; line-height: 1.3; }
.oem-steps h3 { font-size: 19px; margin-bottom: 8px; letter-spacing: -.025em; }
.oem-steps p { font-size: 14px; line-height: 1.75; margin: 0; }
.oem-contact { padding-top: 20px; border-top: 1px solid var(--line); }
.oem-contact > span { display: block; font-size: 12px; margin-bottom: 12px; }
.oem-contact a { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); font-size: 15px; }
.oem-contact svg { width: 19px; height: 19px; }
.oem-form-column { min-width: 0; }
.oem-form { padding: clamp(24px, 3vw, 44px); }
.oem-form { scroll-margin-top: calc(var(--header-height) + 30px); }
.oem-form .preview-form-note { margin-bottom: 30px; font-size: 11px; }
.oem-form fieldset { min-width: 0; padding: 0; margin: 0; border: 0; }
.oem-form .oem-form-section + .oem-form-section { padding-top: 32px; margin-top: 12px; border-top: 1px solid var(--line); }
.oem-form-section > legend { display: flex; gap: 14px; width: 100%; margin-bottom: 28px; color: var(--navy); font-family: var(--heading); font-size: 23px; font-weight: 600; letter-spacing: -.035em; line-height: 1.4; }
.oem-form-section > legend > span { color: var(--gold); font-size: 17px; padding-top: 4px; }
.oem-form .oem-product-fields { padding: 24px; margin-bottom: 26px; background: var(--mist); border: 1px solid var(--line); }
.oem-product-fields > legend { padding: 0 7px; color: var(--navy); font-size: 12px; font-weight: 600; }
.oem-selection-hint { font-size: 13px; line-height: 1.8; margin: -10px 0 25px; color: var(--muted); }
.oem-form .form-group { margin-bottom: 24px; }
.oem-form .form-group label { font-size: 13px; }
.oem-form .form-group label > span:not([aria-hidden]) { color: var(--muted); font-size: 11px; font-weight: 400; }
.oem-form .form-group input:not([type=checkbox]), .oem-form .form-group select, .oem-form .form-group textarea { font-size: 15px; min-height: 50px; }
.oem-form .form-group textarea { min-height: 140px; }
.oem-form #oem-address { min-height: 100px; }
.oem-field-help { font-size: 12px; line-height: 1.8; margin: 10px 0 0; color: var(--muted); }
.oem-choice-group > p { color: var(--navy); font-size: 13px; font-weight: 500; margin-bottom: 12px; }
.oem-choice-group > p > span { color: var(--muted); font-size: 11px; font-weight: 400; }
.oem-choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 18px; }
.oem-choices label { display: flex; gap: 9px; align-items: flex-start; font-size: 12px; line-height: 1.65; color: var(--navy); cursor: pointer; }
.oem-choices input { flex-shrink: 0; width: 16px; height: 16px; margin: 2px 0 0; accent-color: var(--navy); }
.oem-form-actions { border-top: 1px solid var(--line); padding-top: 24px; }
.oem-form-actions > p { font-size: 12px; margin-bottom: 18px; }
.oem-form-actions .btn { font-size: 14px; }
.oem-review { border: 1px solid var(--line); border-top: 3px solid var(--gold); padding: clamp(24px, 3vw, 44px); background: var(--cream); scroll-margin-top: calc(var(--header-height) + 30px); }
.oem-review h2 { font-size: 38px; margin-bottom: 18px; }
.oem-review > p:not(.eyebrow) { font-size: 14px; line-height: 1.8; }
.oem-review dl { margin: 28px 0; }
.oem-review dl > div { padding: 17px 0; border-top: 1px solid #bda06c40; }
.oem-review dt { color: var(--muted); font-size: 11px; margin-bottom: 7px; }
.oem-review dd { color: var(--navy); font-size: 15px; line-height: 1.8; white-space: pre-wrap; overflow-wrap: anywhere; margin: 0; }
.oem-review .text-link { color: var(--navy); padding-bottom: 6px; border-bottom: 1px solid var(--gold); }

@media (max-width: 1250px) {
  .desktop-nav { font-size: 14px; gap: 20px; }
  .nav-products { font-size: inherit; }
  .header-inner { gap: 24px; }
  .header-contact { font-size: 14px; gap: 12px; padding-left: 16px; }
  .hero-lower { gap: 42px; }
  .hero-lower > p { max-width: 390px; font-size: 15px; }
  .product-feature-copy h3 { font-size: 20px; }
  .client-logo { min-height: 124px; padding-inline: 22px; }
  .client-logo-mark { max-width: 100%; }
  .sample-prep-card h3 { font-size: 28px; }
  .sample-prep-card-body { padding: 28px; }
  .application-support-section .text-content { padding-block: 65px; }
  .application-support-section .image-content { min-height: 670px; }
}

@media (max-width: 1120px) {
  :root { --header-height: 80px; }
  .desktop-nav { display: none; }
  .mobile-menu-button { display: flex; }
  .header-actions { margin-left: auto; gap: 14px; }
  .header-contact { display: flex; border: 0; padding: 0; font-size: 15px; }
.brand img { width: 200px; }
  .home-hero { min-height: 690px; }
  .home-hero h1 { font-size: clamp(59px, 7.2vw, 80px); }
  .hero-buttons .btn { font-size: 13px; gap: 22px; }
  .hero-lower { gap: 35px; }
  .hero-lower > p { max-width: 350px; }
  .client-logo { min-height: 122px; padding-inline: 18px; }
  .client-logo-mark { max-height: 88px; }
  .sample-prep-card h3 { font-size: 27px; }
  .sample-prep-card-body > p:not(.blog-card-meta) { min-height: 7.4em; }
  .application-support-section h2 { font-size: 43px; }
  .application-support-section p:not(.eyebrow) { font-size: 15px; }
  .features-grid-alt { gap: 30px; }
  .page-section-nav a { font-size: 12px; }
  .directory-search input { font-size: 13px; }
  .oem-enquiry-layout { grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: 30px; }
  .oem-form .form-row { grid-template-columns: 1fr; gap: 0; }
  .oem-form-section > legend { font-size: 21px; }
}

@media (max-width: 1000px) {
  .product-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 24px; }
  .product-feature-copy h3 { font-size: 24px; }
  .product-feature-copy p { font-size: 14px; }
}

@media (max-width: 760px) {
  :root { --header-height: 76px; }
  .utility-bar > .container { height: 29px; }
  .utility-bar > .container > span:first-child { font-size: 8px; }
  .utility-bar a { display: none; }
  .utility-bar .preview-label { font-size: 7px; }
  .header-inner { gap: 18px; }
  .header-actions { gap: 8px; }
  .header-contact { display: none; }
.brand img { width: 190px; height: 36px; }
  .home-hero { min-height: 690px; }
  .home-hero-inner { padding-top: 48px; padding-bottom: 23px; }
  .home-hero h1 { font-size: clamp(44px, 8.7vw, 65px); line-height: 1.13; margin-bottom: 28px; }
  .hero-media > img { object-position: 74% center; }
  .hero-scrim { background: linear-gradient(90deg, #08243ef0, #08243ec7 52%, #08243e66); }
  .hero-lower { display: block; margin-bottom: 32px; }
  .hero-lower > p { font-size: 14px; max-width: 390px; margin-bottom: 28px; }
  .hero-buttons { gap: 24px; }
  .hero-buttons .btn { min-height: 50px; font-size: 13px; }
  .hero-text-link { font-size: 13px; }
  .hero-baseline { font-size: 8px; }
  .hero-baseline > a { font-size: 9px; }
  .trusted-by-section { padding: 36px 0 40px; }
  .trust-heading { gap: 22px; margin-bottom: 18px; }
  .trust-heading h2 { font-size: 18px; }
  .client-logo-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .client-logo { min-height: 116px; padding: 14px 20px; }
  .client-logo:nth-child(n) { border-right: 1px solid #e9edf0; border-bottom: 1px solid #e9edf0; }
  .client-logo:nth-child(2n) { border-right: 0; }
  .client-logo:nth-last-child(-n+2) { border-bottom: 0; }
  .client-logo-mark { max-height: 85px; }
  .product-feature-grid { gap: 40px 24px; }
  .product-feature-copy { padding-top: 23px; }
  .product-feature-copy h3 { min-height: 2.7em; font-size: 25px; line-height: 1.35; margin-bottom: 15px; }
  .product-feature-copy p { font-size: 14px; line-height: 1.85; margin-bottom: 20px; }
  .product-feature-copy .text-link { font-size: 12px; min-height: 40px; }
  .bulk-home-panel { grid-template-columns: 1fr; gap: 34px; }
  .bulk-home-section p:not(.bulk-eyebrow) { font-size: 15px; }
  .about-section .image-content { height: 450px; }
  .about-section p:not(.eyebrow) { font-size: 15px; }
  .application-support-section .container { width: 100%; max-width: none; grid-template-columns: 1fr; gap: 0; }
  .application-support-section .image-content { margin-left: 0; width: 100%; height: 380px; min-height: 0; grid-column: 1; grid-row: 1; }
  .application-support-section .support-collaboration-panel { height: clamp(280px,75vw,570px); min-height: 280px; }
  .application-support-section .image-content .support-collaboration-image { object-position: 50% 18%; }
  .application-support-section .text-content { padding: 48px var(--page-gutter) 54px; grid-column: 1; grid-row: 2; }
  .application-support-section h2 { font-size: 41px; }
  .features-grid-alt { grid-template-columns: 1fr; }
  .feature-item-alt h4 { font-size: 14px; }
  .feature-item-alt p { font-size: 14px; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .faq-item summary { font-size: 15px; }
  .faq-answer { font-size: 14px; }
  .updates-section li { font-size: 14px; }
  .updates-section li > a { font-size: 12px; }
  .product-grid-spe { gap: 18px; }
  .spe-card-front .image-wrapper { height: 180px; }
  .spe-card-front .image-wrapper img { max-height: 150px; }
  .spe-card-front p { font-size: 12px; min-height: 5.1em; }
  .spe-card-front .btn-flip { font-size: 12px; }
  .product-grid-vials { gap: 18px; }
  .product-item-vial .image-wrapper { height: 185px; }
  .product-item-vial .image-wrapper img { max-height: 145px; }
  .product-item-vial h4 { font-size: 13px; }
  .product-item-vial p { font-size: 11px; }
  .catalogue-enquire { font-size: 11px; min-height: 44px; }
  .filter-chip { font-size: 12px; min-height: 41px; }
  .sample-prep-grid { grid-template-columns: 1fr; gap: 28px; }
  .sample-prep-image-wrap { height: 330px; }
  .sample-prep-card h3 { min-height: 0; font-size: 30px; }
  .sample-prep-card-body > p:not(.blog-card-meta) { min-height: 0; font-size: 15px; }
  .instrument-details { margin-top: 6px; }
  .instrument-details > summary { font-size: 14px; min-height: 58px; }
  .instrument-enquire { font-size: 13px; }
  .page-section-nav > .container { gap: 24px; min-height: 54px; }
  .page-section-nav a { font-size: 11px; min-height: 54px; }
  .page-section-nav .section-quote { padding-left: 0; }
  .section-quote svg { width: 17px; }
  .product-zoom { width: 38px; height: 38px; right: 10px; bottom: 10px; }
  .product-image-dialog { padding: 18px 22px 24px; }
  .product-image-dialog h2 { font-size: 23px; line-height: 1.4; }
  .image-dialog-stage { padding: 16px; min-height: 240px; height: min(54vh,500px); }
  .data-table th { font-size: 11px; }
  .data-table td { font-size: 13px; }
  .directory-toolbar { gap: 12px; }
  .directory-search input { font-size: 13px; }
  .directory-count { font-size: 11px; }
  .table-scroll-hint { font-size: 10px; }
  .blog-grid { grid-template-columns: 1fr; gap: 30px; }
  .blog-card-content h3 { font-size: 28px; }
  .blog-card-content p:not(.blog-card-meta) { font-size: 14px; }
  .form-group label { font-size: 12px; }
  .form-group input:not([type=checkbox]), .form-group textarea, .form-group select { font-size: 16px; }
  .footer-top > div > a:not(.footer-brand > a) { font-size: 12px; }
  .footer-brand p { font-size: 12px; }
  .footer-bottom { font-size: 10px; }
  .footer-bottom > div { gap: 15px; }
  .btn { font-size: 13px; }
  .oem-enquiry-layout { grid-template-columns: 1fr; gap: 36px; }
  .oem-intro { position: static; }
  .oem-intro > p:not(.eyebrow) { max-width: 62ch; }
  .oem-steps { margin-block: 26px; }
  .oem-steps li { padding-block: 18px; }
  .oem-form .form-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .oem-form .form-group input:not([type=checkbox]), .oem-form .form-group select, .oem-form .form-group textarea { font-size: 16px; }
}

@media (max-width: 640px) {
  .product-feature-grid { grid-template-columns: 1fr; gap: 38px; }
  .product-feature-copy h3 { min-height: 0; }
  .oem-form .form-row { grid-template-columns: 1fr; gap: 0; }
}

@media (max-width: 480px) {
  :root { --header-height: 74px; }
.brand img { width: 180px; height: 34px; }
  .header-inner { gap: 14px; }
  .header-actions { gap: 5px; }
  .home-hero { min-height: 690px; }
  .home-hero-inner { padding-top: 40px; }
  .home-hero h1 { font-size: clamp(38px,10.2vw,49px); line-height: 1.16; }
  .hero-lower > p { font-size: 14px; max-width: 315px; }
  .hero-buttons .btn { font-size: 12px; padding-inline: 20px; gap: 20px; }
  .hero-baseline { font-size: 8px; }
  .hero-baseline > a { font-size: 9px; }
  .client-logo { padding: 14px; min-height: 112px; }
  .client-logo-mark { max-height: 81px; }
  .product-feature-grid { grid-template-columns: 1fr; gap: 38px; }
  .product-feature-copy h3 { min-height: 0; font-size: 27px; }
  .product-feature-copy p { font-size: 14px; }
  .product-feature-copy .text-link { font-size: 13px; }
  .about-section .image-content { height: 390px; }
  .application-support-section .image-content { height: 320px; }
  .application-support-section h2 { font-size: 38px; }
  .product-grid-spe { gap: 14px; }
  .spe-card-front .image-wrapper { height: 160px; }
  .spe-card-front .image-wrapper img { max-height: 130px; }
  .spe-card-front h4 { font-size: 24px; min-height: 1.4em; }
  .spe-card-flipper:nth-child(5) h4 { font-size: 17px; min-height: 34px; }
  .spe-card-front p { font-size: 11px; min-height: 5.1em; }
  .spe-card-front .btn-flip { font-size: 11px; min-height: 44px; }
  .product-grid-vials { gap: 14px; }
  .product-item-vial .image-wrapper { height: 165px; }
  .product-item-vial .image-wrapper img { max-height: 130px; }
  .product-item-vial h4 { font-size: 12px; }
  .product-item-vial p { font-size: 10px; }
  .catalogue-enquire { font-size: 10px; gap: 5px; }
  .catalogue-enquire svg { width: 16px; }
  .sample-prep-card-body { padding: 25px; }
  .sample-prep-card h3 { font-size: 28px; }
  .sample-prep-card-body > p:not(.blog-card-meta) { font-size: 14px; }
  .blog-card-meta { font-size: 10px; }
  .page-section-nav > .container { gap: 22px; }
  .page-section-nav a { font-size: 11px; }
  .page-section-nav .section-quote { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .product-image-dialog { padding-inline: 18px; }
  .product-image-dialog h2 { font-size: 22px; }
  .image-dialog-stage { min-height: 200px; padding: 12px; }
  .bulk-chemistry-grid { gap: 18px; }
  .bulk-card-type { min-height: 0; }
  .footer-bottom > span:first-child { max-width: 235px; }
  .footer-bottom > div { font-size: 9px; }
  .oem-hero .page-hero-copy h1 { font-size: 44px; }
  .oem-hero-range { gap: 12px; }
  .oem-hero-range > div { padding: 10px; }
  .oem-hero-range span { font-size: 11px; }
  .oem-form { padding: 24px 20px; }
  .oem-form .oem-product-fields { padding: 20px 16px; }
  .oem-choices { grid-template-columns: 1fr; }
  .oem-form-actions .btn { width: 100%; justify-content: space-between; }
  .oem-review h2 { font-size: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}

@media print {
  .page-section-nav, .product-zoom, .product-image-dialog { display: none !important; }
  .instrument-details-content { display: block !important; }
  .application-support-section .image-content { margin-left: 0; width: 100%; }
}