:root {
  --ink: #0b1f33;
  --ink-soft: #40566d;
  --blue: #0756a6;
  --blue-dark: #073568;
  --teal: #008a84;
  --teal-dark: #006762;
  --amber: #e2a520;
  --white: #fff;
  --mist: #f3f7fa;
  --line: #d8e2ea;
  --success: #087d61;
  --danger: #a82f2f;
  --shadow: 0 18px 45px rgba(7, 53, 104, .11);
  --radius: 14px;
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans SC", Arial, sans-serif; line-height: 1.62; text-rendering: optimizeLegibility; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { letter-spacing: -.025em; line-height: 1.14; }
h1 { font-size: clamp(2.55rem, 6vw, 5.2rem); }
h2 { font-size: clamp(1.85rem, 3.4vw, 3.05rem); }
h3 { font-size: 1.15rem; }
p { color: var(--ink-soft); }
.container { width: var(--container); margin-inline: auto; }
.narrow { max-width: 850px; }
.section { padding: 94px 0; }
.section-muted { background: var(--mist); border-block: 1px solid #e9eff4; }
.skip-link { position: fixed; z-index: 999; left: 16px; top: -60px; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 6px; }
.skip-link:focus { top: 12px; }
.eyebrow { margin-bottom: 14px; color: var(--blue); font-size: .76rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow.light { color: #bfe9ff; }
.lead { color: var(--ink-soft); font-size: clamp(1.08rem, 1.8vw, 1.34rem); line-height: 1.62; }
.lead-sm { font-size: 1.1rem; }
.fine-print { color: #65788b; font-size: .86rem; }
.center-action { margin-top: 38px; text-align: center; }

.utility-bar { background: var(--blue-dark); color: #d9edff; font-size: .78rem; }
.utility-inner { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.utility-inner div { display: flex; gap: 11px; }
.utility-inner a:hover { color: #fff; }
.site-header { position: sticky; z-index: 100; top: 0; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.nav-row { min-height: 86px; display: flex; align-items: center; gap: 18px; }
.brand { width: 218px; min-width: 218px; display: flex; align-items: center; justify-content: flex-start; gap: 7px; }
.brand img { display: block; width: auto; object-fit: contain; }
.brand-group-logo { width: 108px !important; height: 58px !important; }
.brand-chemicals-logo { width: 94px !important; height: 53px !important; }
.brand-divider { width: 1px; height: 42px; flex: 0 0 1px; background: #d5e0e8; }
.site-nav { margin-left: auto; display: flex; align-items: center; }
.nav-list, .nav-submenu { margin: 0; padding: 0; list-style: none; }
.nav-list { display: flex; align-items: center; gap: clamp(4px, .4vw, 7px); }
.site-nav a { position: relative; color: #253c52; font-size: .78rem; font-weight: 700; white-space: nowrap; }
.site-nav a::after { position: absolute; right: 0; bottom: -9px; left: 0; height: 2px; background: var(--teal); content: ""; transform: scaleX(0); transition: transform .2s ease; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); }
.nav-node { position: relative; }
.nav-link-row { display: flex; align-items: center; min-height: 38px; gap: 2px; }
.nav-list > .nav-node > .nav-link-row { min-height: 40px; padding: 0 7px; border: 1px solid #dfe8ef; border-radius: 9px; background: #fff; transition: border-color .18s ease, background .18s ease, box-shadow .18s ease; }
.nav-list > .nav-node > .nav-link-row > a { padding: 8px 0; }
.nav-list > .nav-node > .nav-link-row > a::after { display: none; }
.nav-list > .nav-node > .nav-link-row:hover, .nav-list > .nav-node > .nav-link-row:focus-within { border-color: #b9cfe0; background: #f5f9fc; box-shadow: 0 4px 12px rgba(7,53,104,.07); }
.nav-submenu-toggle { width: 20px; height: 28px; padding: 0; display: grid; place-items: center; border: 0; background: transparent; color: #607589; font-size: 1rem; line-height: 1; }
.nav-submenu-toggle:hover, .nav-submenu-toggle:focus-visible { color: var(--blue); }
.nav-submenu { position: absolute; z-index: 150; top: calc(100% + 23px); left: -16px; min-width: 270px; max-width: 340px; padding: 10px 0; display: none; border: 1px solid var(--line); background: #fff; box-shadow: 0 22px 55px rgba(7,53,104,.18); }
.nav-submenu::before { position: absolute; top: -24px; right: 0; left: 0; height: 24px; content: ""; }
.nav-submenu .nav-node { width: 100%; }
.nav-submenu .nav-link-row { min-height: 0; padding: 0 8px 0 16px; }
.nav-submenu .nav-link-row > a { min-width: 0; padding: 10px 8px; flex: 1; color: #40586d; font-size: .82rem; line-height: 1.35; white-space: normal; }
.nav-submenu .nav-link-row > a::after { display: none; }
.nav-submenu .nav-link-row:hover { background: #f1f7fb; }
.nav-submenu .nav-link-row:hover > a { color: var(--blue-dark); }
.nav-submenu .nav-submenu-toggle { width: 32px; height: 36px; flex: 0 0 32px; font-size: 1.2rem; }
.nav-submenu .nav-submenu { top: -11px; left: calc(100% + 7px); max-height: min(72vh, 610px); overflow-y: auto; }
.nav-node:hover > .nav-submenu, .nav-node.open > .nav-submenu { display: block; }
.nav-submenu .nav-node.has-submenu > .nav-link-row > a { font-weight: 800; }
.nav-actions { display: flex; flex: 0 0 auto; align-items: center; flex-wrap: nowrap; gap: 8px; }
.language-switch { display: flex; flex: 0 0 auto; overflow: hidden; border: 1px solid var(--line); border-radius: 999px; white-space: nowrap; }
.language-switch a { min-width: 35px; padding: 5px 8px; color: var(--ink-soft); font-size: .72rem; font-weight: 800; text-align: center; }
.language-switch a[aria-current="page"] { background: var(--ink); color: #fff; }
.menu-toggle { display: none; border: 0; background: transparent; }

.button-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 20px; border: 1px solid var(--blue); border-radius: 6px; background: var(--blue); color: #fff; font-weight: 800; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.button:hover, .button:focus-visible { background: var(--blue-dark); box-shadow: 0 9px 25px rgba(7, 86, 166, .2); transform: translateY(-1px); }
.button-secondary { border-color: #fff; background: #fff; color: var(--blue-dark); }
.button-secondary:hover { background: #e8f5ff; color: var(--blue-dark); }
.button-outline { background: transparent; color: var(--blue); }
.button-outline:hover { color: #fff; }
.button-small { min-height: 38px; padding: 8px 12px; font-size: .76rem; line-height: 1; white-space: nowrap; }
.text-link { color: var(--blue); font-size: .88rem; font-weight: 800; }
.text-link:hover { color: var(--teal-dark); }

.mother-hero { position: relative; min-height: 540px; overflow: hidden; background: #0b2a41; }
.mother-slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .6s ease, visibility .6s ease; }
.mother-slide.is-active { opacity: 1; visibility: visible; }
.mother-slide > img, .mother-slide-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.mother-slide > img { object-fit: cover; object-position: center; }
.mother-slide-overlay { background: linear-gradient(90deg, rgba(5,27,48,.84) 0%, rgba(5,36,60,.58) 46%, rgba(5,40,60,.12) 78%); }
.mother-slide-copy { position: relative; z-index: 2; min-height: 540px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.mother-slide-copy > p { margin-bottom: 10px; color: #c6e6fa; font-size: .75rem; font-weight: 900; letter-spacing: .18em; text-transform: uppercase; }
.mother-slide-copy h1 { max-width: 830px; margin-bottom: 10px; color: #fff; font-size: clamp(2.65rem, 5.3vw, 4.7rem); }
.mother-slide-copy h2 { max-width: 760px; margin-bottom: 30px; color: #f1f7fb; font-size: clamp(1.15rem, 2.1vw, 1.8rem); font-weight: 600; letter-spacing: -.01em; }
.mother-slider-controls { position: absolute; z-index: 5; right: 0; bottom: 22px; left: 0; display: flex; align-items: center; justify-content: center; gap: 14px; }
.mother-slider-controls > button { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; background: rgba(4,29,51,.42); color: #fff; font-size: 1.45rem; line-height: 1; }
.mother-slider-controls > div { display: flex; gap: 8px; }
.mother-slider-controls [data-slide-dot] { width: 34px; height: 4px; padding: 0; border: 0; background: rgba(255,255,255,.45); }
.mother-slider-controls [data-slide-dot][aria-current="true"] { background: #fff; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.mother-slide--network { background: #041b33; isolation: isolate; }
.global-network { position: absolute; inset: 0; overflow: hidden; background: radial-gradient(circle at 50% 43%, rgba(30, 143, 217, .2), transparent 40%), radial-gradient(circle at 50% 115%, rgba(0, 199, 177, .13), transparent 42%), linear-gradient(135deg, #03162a 0%, #082f52 52%, #041a31 100%); }
.global-network::before { position: absolute; inset: 0; opacity: .7; background-image: linear-gradient(rgba(122, 204, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(122, 204, 255, .035) 1px, transparent 1px); background-size: 40px 40px; mask-image: linear-gradient(90deg, transparent 0%, #000 28%, #000 100%); content: ""; }
.global-network::after { position: absolute; inset: -30%; background: conic-gradient(from 40deg at 74% 48%, transparent 0 12%, rgba(42, 181, 255, .06) 15%, transparent 20% 52%, rgba(0, 214, 180, .05) 58%, transparent 65%); animation: network-sweep 16s linear infinite; content: ""; }
.global-network-canvas { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; }
.network-copy-shade { position: absolute; inset: 0; z-index: 2; pointer-events: none; background: linear-gradient(90deg, rgba(2, 18, 34, .97) 0%, rgba(3, 25, 45, .9) 25%, rgba(3, 27, 48, .34) 44%, transparent 63%); }
.mother-slide-copy--network { z-index: 4; pointer-events: none; }
.mother-slide-copy--network > * { pointer-events: auto; }
.mother-slide-copy--network h1 { max-width: 535px; font-size: clamp(2.7rem, 4.55vw, 4.15rem); }
.mother-slide-copy--network h2 { max-width: 475px; color: #c9e8fa; }
.network-node-layer { position: absolute; inset: 0; z-index: 5; pointer-events: none; }
.network-node { position: absolute; width: 25px; height: 25px; padding: 0; pointer-events: auto; transform: translate(-50%, -50%); border: 0; border-radius: 50%; background: transparent; color: #fff; cursor: pointer; }
.network-node-ring, .network-node-core { position: absolute; border-radius: 50%; }
.network-node-ring { inset: 1px; border: 1px solid rgba(105, 215, 255, .78); box-shadow: 0 0 18px rgba(51, 179, 255, .62); animation: node-pulse 2.6s ease-out infinite; }
.network-node-core { inset: 7px; background: #78d9ff; box-shadow: 0 0 0 2px rgba(12, 83, 132, .85), 0 0 14px #3bc7ff; transition: transform .2s ease, background .2s ease; }
.network-node[data-type="factory"] { width: 30px; height: 30px; }
.network-node[data-type="factory"] .network-node-ring { border-color: rgba(107, 238, 200, .86); box-shadow: 0 0 20px rgba(87, 218, 183, .7); }
.network-node[data-type="factory"] .network-node-core { inset: 8px; background: #57dab7; box-shadow: 0 0 0 2px rgba(7, 89, 83, .85), 0 0 16px #57dab7; }
.network-node[data-type="peru"] { z-index: 2; width: 42px; height: 42px; }
.network-node[data-type="peru"] .network-node-ring { border: 2px solid rgba(255, 208, 111, .94); box-shadow: 0 0 28px rgba(255, 188, 60, .82); animation-duration: 1.9s; }
.network-node[data-type="peru"] .network-node-core { inset: 12px; background: #ffd06f; box-shadow: 0 0 0 3px rgba(105, 63, 5, .7), 0 0 22px #ffbc3c; }
.network-node:hover .network-node-core, .network-node:focus-visible .network-node-core, .network-node.is-active .network-node-core { background: #fff; transform: scale(1.45); }
.network-node:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.network-popover { position: absolute; z-index: 7; width: min(330px, calc(100% - 24px)); padding: 18px 20px; pointer-events: none; border: 1px solid rgba(126, 215, 255, .45); border-radius: 10px; background: rgba(2, 22, 40, .95); box-shadow: 0 16px 45px rgba(0, 0, 0, .36), inset 0 1px rgba(255,255,255,.05); color: #fff; backdrop-filter: blur(13px); transform: translateY(-50%); }
.network-popover::before { position: absolute; inset: 0 auto 0 0; width: 3px; border-radius: 10px 0 0 10px; background: linear-gradient(#5fceff, #46dcb8); content: ""; }
.network-popover span { display: block; margin-bottom: 5px; color: #78d9ff; font-size: .68rem; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
.network-popover strong { display: block; font-size: 1.08rem; }
.network-popover small { display: block; margin-top: 4px; color: #8ddccf; font-weight: 700; }
.network-popover p { margin: 9px 0 0; color: #d4e8f5; font-size: .79rem; line-height: 1.55; }
.network-popover .network-popover-company { color: #fff; font-weight: 800; }
.network-popover dl { margin: 12px 0 0; display: grid; gap: 8px; }
.network-popover dl div { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 9px; align-items: start; }
.network-popover dt { color: #78d9ff; font-size: .7rem; font-weight: 800; }
.network-popover dd { margin: 0; color: #d4e8f5; font-size: .78rem; line-height: 1.42; }
.network-legend { position: absolute; z-index: 4; right: 3vw; bottom: 28px; display: flex; gap: 18px; color: rgba(222, 241, 252, .78); font-size: .69rem; font-weight: 700; }
.network-legend span { display: flex; align-items: center; gap: 7px; }
.network-legend i { width: 9px; height: 9px; border: 1px solid #78d9ff; border-radius: 50%; box-shadow: 0 0 8px #3bc7ff; }
.network-legend i.is-factory { border-color: #57dab7; background: rgba(87,218,183,.3); box-shadow: 0 0 8px rgba(87,218,183,.8); }
.network-legend i.is-peru { width: 11px; height: 11px; border-color: #ffd06f; background: rgba(255,208,111,.34); box-shadow: 0 0 10px rgba(255,188,60,.9); }
@keyframes network-sweep { to { transform: rotate(360deg); } }
@keyframes node-pulse { 0% { opacity: .95; transform: scale(.5); } 75%, 100% { opacity: 0; transform: scale(1.18); } }
@media (prefers-reduced-motion: reduce) { .global-network::after, .network-node-ring { animation: none; } }
.company-intro { border-bottom: 1px solid var(--line); }
.company-intro .lead-sm { max-width: 690px; }

.home-hero { position: relative; min-height: 710px; overflow: hidden; display: grid; align-items: center; background: #0b2a41; }
.home-hero picture, .home-hero picture img, .hero-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.home-hero picture img { object-fit: cover; object-position: center; }
.hero-overlay { background: linear-gradient(90deg, rgba(5, 28, 51, .93) 0%, rgba(5, 38, 66, .75) 48%, rgba(6, 50, 77, .23) 100%); }
.hero-content { position: relative; z-index: 1; padding-block: 90px; }
.hero-content h1 { max-width: 900px; margin-bottom: 22px; color: #fff; font-size: clamp(3rem, 7vw, 6.15rem); }
.hero-content > p:not(.eyebrow) { max-width: 720px; margin-bottom: 28px; color: #dfedf7; font-size: clamp(1.05rem, 1.7vw, 1.3rem); }
.hero-trust { margin: 36px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 20px; list-style: none; color: #e8f5ff; font-size: .88rem; font-weight: 700; }
.hero-trust li { display: flex; align-items: center; gap: 9px; }
.hero-trust li::before { width: 8px; height: 8px; border: 2px solid var(--amber); border-radius: 50%; content: ""; }
.section-heading { margin-bottom: 40px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 54px; align-items: end; }
.section-heading h2 { max-width: 780px; margin-bottom: 0; }
.section-heading > p { margin-bottom: 3px; }
.section-heading.compact { display: block; }

.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.category-card { position: relative; min-height: 260px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; transition: background .2s ease, transform .2s ease, box-shadow .2s ease; }
.category-card:hover { z-index: 2; background: #f9fcff; box-shadow: var(--shadow); transform: translateY(-3px); }
.category-index { display: inline-block; margin-bottom: 38px; color: var(--teal); font-size: .75rem; font-weight: 900; letter-spacing: .15em; }
.category-card h3 { max-width: 300px; font-size: 1.35rem; }
.category-card p { font-size: .92rem; }
.category-card .text-link { position: absolute; right: 34px; bottom: 28px; left: 34px; }

.system-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.system-card { position: relative; min-height: 420px; overflow: hidden; border-radius: var(--radius); background: var(--blue-dark); color: #fff; box-shadow: var(--shadow); }
.system-card > img, .system-card-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.system-card > img { object-fit: cover; transition: transform .35s ease; }
.system-card-overlay { background: linear-gradient(180deg, rgba(4,28,51,.12), rgba(4,28,51,.94)); }
.system-card > div { position: absolute; z-index: 1; right: 28px; bottom: 28px; left: 28px; }
.system-card small { color: #9fd8ff; font-weight: 900; letter-spacing: .14em; }
.system-card h3 { margin: 12px 0 8px; color: #fff; font-size: 1.55rem; }
.system-card p { color: #d7e8f4; font-size: .88rem; }
.system-card strong { color: #fff; font-size: .82rem; }
.system-card:hover > img { transform: scale(1.035); }
.materials-heading { margin: 52px 0 20px; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.materials-heading h3 { margin-bottom: 0; font-size: 1.45rem; }

.home-catalog { overflow: hidden; background: linear-gradient(180deg, #fff 0%, #f4f8fb 100%); }
.catalog-family-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.catalog-family-card { position: relative; min-height: 520px; padding: 34px; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: 0 12px 34px rgba(7, 53, 104, .06); }
.catalog-family-card::before { position: absolute; top: 0; right: 0; left: 0; height: 6px; background: var(--blue); content: ""; }
.catalog-family-card.catalog-accent-teal::before { background: var(--teal); }
.catalog-family-card::after { position: absolute; top: -90px; right: -90px; width: 220px; height: 220px; border: 34px solid rgba(7, 86, 166, .045); border-radius: 50%; content: ""; }
.catalog-family-card.catalog-accent-teal::after { border-color: rgba(0, 137, 123, .055); }
.catalog-family-number { position: relative; z-index: 1; margin-bottom: 44px; color: var(--blue); font-size: 1.35rem; font-weight: 900; letter-spacing: .12em; }
.catalog-accent-teal .catalog-family-number { color: var(--teal-dark); }
.catalog-family-card h3 { position: relative; z-index: 1; min-height: 2.7em; font-size: 1.55rem; }
.catalog-family-card > p:not(.eyebrow) { position: relative; z-index: 1; min-height: 6.5em; font-size: .89rem; }
.catalog-family-links { margin: 10px 0 28px; display: grid; gap: 0; border-top: 1px solid var(--line); }
.catalog-family-links a { min-height: 42px; padding: 9px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); color: #385267; font-size: .78rem; font-weight: 750; }
.catalog-family-links a:hover { color: var(--blue); }
.catalog-family-links span { min-width: 28px; padding: 2px 7px; border-radius: 999px; background: var(--mist); color: var(--teal-dark); text-align: center; }
.catalog-family-card > .text-link { margin-top: auto; }
.home-catalog .center-action { margin-top: 34px; }

.catalog-overview { padding: 36px 0 0; background: #f4f8fb; border-bottom: 1px solid var(--line); }
.catalog-stats { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 12px 12px 0 0; background: #fff; }
.catalog-stats div { min-height: 122px; padding: 26px 30px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--line); }
.catalog-stats div:last-child { border-right: 0; }
.catalog-stats strong { color: var(--blue-dark); font-size: 2.4rem; line-height: 1; }
.catalog-stats span { margin-top: 9px; color: var(--ink-soft); font-size: .8rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.catalog-jump { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--blue-dark); }
.catalog-jump a { min-height: 76px; padding: 18px 28px; display: flex; align-items: center; gap: 14px; border-right: 1px solid rgba(255,255,255,.14); color: #fff; font-size: .9rem; font-weight: 800; }
.catalog-jump a:last-child { border-right: 0; }
.catalog-jump a:hover { background: rgba(20, 138, 201, .28); }
.catalog-jump span { color: #72d6c0; font-size: .72rem; letter-spacing: .12em; }
.catalog-directory { background: #fff; }
.catalog-filter { position: sticky; z-index: 20; top: 104px; border-color: #c7d7e3; background: rgba(244, 248, 251, .96); box-shadow: 0 10px 24px rgba(7, 53, 104, .07); backdrop-filter: blur(12px); }
.catalog-source-note { margin: 28px 0 64px; padding: 22px 25px; border-left: 4px solid var(--teal); background: #eef8f6; }
.catalog-source-note strong { color: var(--teal-dark); }
.catalog-source-note p { margin: 6px 0 0; font-size: .86rem; }
.catalog-family-section { margin: 0 0 84px; scroll-margin-top: 190px; }
.catalog-family-heading { padding: 38px 42px; display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 24px; border-radius: 12px 12px 0 0; background: linear-gradient(120deg, #073568 0%, #0756a6 100%); color: #fff; }
.catalog-family-heading.catalog-accent-teal { background: linear-gradient(120deg, #07575a 0%, #00897b 100%); }
.catalog-family-heading > span { color: #7bd9ff; font-size: 1.45rem; font-weight: 900; letter-spacing: .12em; }
.catalog-family-heading.catalog-accent-teal > span { color: #8de1ce; }
.catalog-family-heading .eyebrow { margin-bottom: 7px; color: #a9defa; }
.catalog-family-heading h2 { margin-bottom: 10px; color: #fff; }
.catalog-family-heading p:last-child { max-width: 920px; margin: 0; color: #deedf6; }
.catalog-category-stack { border-right: 1px solid var(--line); border-left: 1px solid var(--line); }
.catalog-category-panel { padding: 36px 40px 42px; border-bottom: 1px solid var(--line); background: #fff; scroll-margin-top: 190px; }
.catalog-category-panel[hidden], .catalog-family-section[hidden], .catalog-model-card[hidden] { display: none; }
.catalog-category-panel > header { margin-bottom: 12px; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.catalog-category-panel h3 { margin: 0; font-size: 1.55rem; }
.catalog-category-panel h3 a:hover { color: var(--blue); }
.catalog-category-panel > p { max-width: 940px; font-size: .9rem; }
.catalog-category-arrow { width: 40px; height: 40px; display: grid; place-items: center; flex: 0 0 40px; border: 1px solid var(--line); border-radius: 50%; color: var(--blue); font-weight: 900; }
.catalog-category-arrow:hover { border-color: var(--blue); background: var(--blue); color: #fff; }
.catalog-model-grid { margin-top: 26px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.catalog-model-card { position: relative; min-height: 142px; padding: 18px 44px 18px 18px; border: 1px solid #dbe5ed; border-radius: 8px; background: #f9fbfd; transition: border-color .18s ease, background .18s ease, transform .18s ease; }
.catalog-model-card:hover { border-color: #91b9d6; background: #fff; box-shadow: 0 10px 25px rgba(7, 53, 104, .08); transform: translateY(-2px); }
.catalog-model-code { display: block; color: var(--blue-dark); font-size: .98rem; font-weight: 900; line-height: 1.28; }
.catalog-model-card small { display: block; margin-top: 5px; color: var(--teal-dark); font-size: .67rem; font-weight: 800; }
.catalog-model-card p { margin: 15px 0 0; color: #5b7082; font-size: .76rem; line-height: 1.45; }
.catalog-model-card i { position: absolute; top: 18px; right: 16px; color: var(--blue); font-style: normal; font-weight: 900; }
.catalog-solution-list { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 9px; }
.catalog-solution-list span { padding: 9px 12px; border: 1px solid #c9dbe7; border-radius: 999px; background: #f5f9fc; color: #385267; font-size: .75rem; font-weight: 800; }
.catalog-category-standalone .catalog-category-panel { border: 1px solid var(--line); border-radius: 12px; }

.source-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.source-grid-featured { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.source-grid-featured .source-card-copy { padding: 20px; }
.source-card { min-width: 0; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.source-card > img, .source-card-placeholder { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: linear-gradient(135deg, var(--blue-dark), var(--teal)); }
.source-card-placeholder { display: grid; place-items: center; color: rgba(255,255,255,.8); font-size: 2.5rem; font-weight: 900; }
.source-card-copy { padding: 24px; display: flex; flex: 1; flex-direction: column; }
.source-card-copy > span { color: var(--teal-dark); font-size: .7rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.source-card-copy h3 { margin: 17px 0 10px; font-size: 1.15rem; }
.source-card-copy p { display: -webkit-box; overflow: hidden; font-size: .86rem; -webkit-box-orient: vertical; -webkit-line-clamp: 4; }
.source-card-copy .text-link { margin-top: auto; }
.source-notice { padding: 22px 25px; margin: 0 0 34px; border-left: 5px solid var(--amber); background: #fff8e7; }
.source-notice p { margin: 5px 0 0; }
.source-copy { padding-top: 55px; padding-bottom: 70px; font-size: 1.02rem; }
.source-copy h2, .source-copy h3, .source-copy h4 { margin-top: 42px; }
.source-copy img { width: 100%; margin: 28px 0; border-radius: 8px; }
.source-copy table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
.source-copy th, .source-copy td { min-width: 130px; padding: 10px; border: 1px solid var(--line); text-align: left; }
.source-copy a { color: var(--blue); text-decoration: underline; }
.news-hero { margin-block: 0; }
.news-hero img { width: 100%; border-radius: 12px; aspect-ratio: 3 / 2; object-fit: cover; }
.news-toolbar { display: flex; flex-wrap: wrap; align-items: end; gap: 18px; margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.news-toolbar label { display: grid; gap: 7px; flex: 1 1 240px; }
.news-toolbar label span { font-size: .8rem; color: var(--ink-soft); font-weight: 700; }
.news-toolbar input, .news-toolbar select { width: 100%; min-height: 48px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 13px; color: var(--ink); background: white; }
.news-toolbar input:focus-visible, .news-toolbar select:focus-visible { outline: 3px solid #b9dbe9; outline-offset: 2px; }
.news-toolbar p { margin: 0 0 12px; font-size: .86rem; }
.news-empty { padding: 35px 0; }
.source-card[hidden], .news-empty[hidden], [data-news-more][hidden] { display: none; }
.source-detail .article-header { padding-bottom: 0; }
.source-empty { padding: 36px; border: 1px solid var(--line); background: var(--mist); }

.application-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.application-grid.large { grid-template-columns: repeat(3, 1fr); }
.application-card { position: relative; min-height: 270px; padding: 32px; overflow: hidden; border: 1px solid #dbe5ed; border-radius: var(--radius); background: #fff; box-shadow: 0 9px 30px rgba(10, 54, 90, .04); }
.application-card::before { position: absolute; top: -45px; right: -45px; width: 135px; height: 135px; border: 22px solid #e6f1f7; border-radius: 50%; content: ""; transition: transform .25s ease; }
.application-card:hover::before { transform: scale(1.12); }
.app-mark { width: 34px; height: 5px; margin-bottom: 48px; background: var(--amber); }
.application-card h3 { position: relative; font-size: 1.25rem; }
.application-card p { position: relative; font-size: .9rem; }
.application-card .text-link { position: absolute; right: 32px; bottom: 26px; left: 32px; }

.split-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; }
.advantage-list { margin-top: 38px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px 30px; }
.advantage-list > div { position: relative; padding-left: 20px; border-left: 2px solid var(--line); }
.advantage-list span { position: absolute; top: 0; left: -2px; width: 2px; height: 34px; background: var(--teal); }
.advantage-list h3 { margin-bottom: 8px; }
.advantage-list p { margin-bottom: 0; font-size: .89rem; }
.media-card { margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--ink); box-shadow: var(--shadow); }
.media-card img { width: 100%; min-height: 460px; object-fit: cover; }
.media-card figcaption { padding: 15px 20px; color: #d8e7f3; font-size: .8rem; }
.media-card.tall img { min-height: 560px; }

.quality-band { padding: 90px 0; overflow: hidden; background: var(--blue-dark); }
.quality-inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: 74px; align-items: center; }
.quality-inner h2, .quality-inner > div:first-child > p:not(.eyebrow) { color: #fff; }
.quality-inner > div:first-child > p:not(.eyebrow) { color: #d4e5f3; }
.lab-stack { position: relative; min-height: 470px; }
.lab-stack img { position: absolute; width: 69%; border: 9px solid #fff; box-shadow: 0 20px 45px rgba(0,0,0,.28); }
.lab-stack img:first-child { top: 0; left: 0; }
.lab-stack img:last-child { right: 0; bottom: 0; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.product-card { min-height: 330px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.product-card:hover { border-color: #b5cad9; box-shadow: var(--shadow); transform: translateY(-3px); }
.product-card[hidden] { display: none; }
.product-card-top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.model-chip { display: inline-flex; padding: 6px 10px; border-radius: 4px; background: var(--blue-dark); color: #fff; font-size: .78rem; font-weight: 900; letter-spacing: .05em; }
.model-chip.large { margin-bottom: 20px; font-size: .95rem; }
.doc-state { max-width: 145px; color: #607589; font-size: .69rem; font-weight: 800; text-align: right; }
.doc-state.available { color: var(--success); }
.product-category { margin: 33px 0 9px; color: var(--teal-dark); font-size: .76rem; font-weight: 800; text-transform: uppercase; }
.product-card h3 { margin-bottom: 12px; font-size: 1.35rem; }
.product-card h3 a:hover { color: var(--blue); }
.product-card > p:not(.product-category) { font-size: .9rem; }
.product-card > .text-link { margin-top: auto; }
.service-strip { padding: 56px 0; border-block: 1px solid #d9e2e9; background: #edf4f8; }
.service-strip .container { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.service-strip h2 { margin-bottom: 10px; font-size: clamp(1.8rem, 3vw, 2.6rem); }
.service-strip p { max-width: 760px; margin-bottom: 0; }

.page-hero { padding: 104px 0 82px; border-bottom: 1px solid var(--line); background-color: #f4f8fb; background-image: linear-gradient(#e4edf3 1px, transparent 1px), linear-gradient(90deg, #e4edf3 1px, transparent 1px); background-size: 42px 42px; }
.page-hero h1 { margin-bottom: 24px; font-size: clamp(2.65rem, 6vw, 4.8rem); }
.page-hero .lead { max-width: 820px; }
.page-hero .button-row { margin-top: 28px; }
.breadcrumbs { padding-top: 20px; display: flex; gap: 9px; flex-wrap: wrap; color: #64778a; font-size: .78rem; }
.breadcrumbs a:hover { color: var(--blue); }

.filter-bar { margin-bottom: 20px; padding: 22px; display: grid; grid-template-columns: 1.5fr 1fr; gap: 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--mist); }
.filter-bar.compact { max-width: 460px; grid-template-columns: 1fr; }
.filter-bar label, .form-grid label { display: flex; flex-direction: column; gap: 7px; color: #364c60; font-size: .76rem; font-weight: 800; }
.filter-bar input, .filter-bar select, .form-grid input, .form-grid select, .form-grid textarea { width: 100%; min-height: 48px; padding: 11px 13px; border: 1px solid #bac9d5; border-radius: 6px; background: #fff; color: var(--ink); outline: none; }
.filter-bar input:focus, .filter-bar select:focus, .form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(7, 86, 166, .12); }
.results-count { min-height: 25px; color: #607386; font-size: .83rem; }
.no-results { padding: 50px; text-align: center; }

.product-hero { padding: 78px 0; background: #f4f8fb; border-bottom: 1px solid var(--line); }
.product-hero-grid { display: grid; grid-template-columns: 1fr 350px; gap: 70px; align-items: center; }
.product-hero h1 { margin-bottom: 24px; font-size: clamp(2.6rem, 6vw, 4.8rem); }
.product-doc-card { padding: 32px; border-top: 5px solid var(--teal); background: #fff; box-shadow: var(--shadow); }
.product-doc-card > span { color: var(--success); font-size: .74rem; font-weight: 900; }
.product-doc-card h2 { margin: 38px 0; font-size: 2.4rem; }
.product-doc-card .button { width: 100%; margin-bottom: 16px; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 70px; align-items: start; }
.detail-section { padding-bottom: 42px; margin-bottom: 42px; border-bottom: 1px solid var(--line); }
.detail-section h2 { font-size: 1.8rem; }
.check-list { padding: 0; list-style: none; }
.check-list li { position: relative; margin-bottom: 13px; padding-left: 30px; color: var(--ink-soft); }
.check-list li::before { position: absolute; top: .5em; left: 0; width: 14px; height: 7px; border-bottom: 2px solid var(--teal); border-left: 2px solid var(--teal); content: ""; transform: rotate(-45deg); }
.spec-table { border-top: 1px solid var(--line); }
.spec-table div { display: grid; grid-template-columns: minmax(160px, .8fr) 1.2fr; border-bottom: 1px solid var(--line); }
.spec-table dt, .spec-table dd { margin: 0; padding: 15px 12px; }
.spec-table dt { color: #51677a; font-weight: 800; }
.spec-table dd { border-left: 1px solid var(--line); }
.safety-note { padding: 25px; border-left: 5px solid var(--amber); background: #fff8e7; }
.safety-note p { margin: 8px 0 0; }
.detail-aside { position: sticky; top: 145px; padding: 27px; border: 1px solid var(--line); background: #fff; }
.detail-aside h2 { font-size: 1.25rem; }
.detail-aside > a { padding: 13px 0; display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px solid var(--line); color: var(--blue); font-weight: 700; }
.aside-contact { margin-top: 28px; padding: 21px; background: var(--blue-dark); color: #fff; }
.aside-contact p { margin: 6px 0; color: #d7e9f8; }
.aside-contact a { color: #fff; font-size: .85rem; font-weight: 800; }
.cta-panel { margin-top: 60px; padding: 45px; border-radius: var(--radius); background: var(--blue-dark); color: #fff; }
.cta-panel h2, .cta-panel p { color: #fff; }
.cta-panel .button-row { margin-top: 24px; }

.application-detail { display: grid; grid-template-columns: 1fr 360px; gap: 75px; align-items: start; }
.application-detail section { margin-bottom: 65px; }
.issue-list { padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; list-style: none; }
.issue-list li { padding: 20px; border-left: 4px solid var(--amber); background: var(--mist); color: var(--ink-soft); }
.help-box { padding: 34px; background: #eef6f7; border: 1px solid #cde1e2; }
.application-detail aside { position: sticky; top: 145px; padding: 28px; border: 1px solid var(--line); }
.application-detail aside h2 { font-size: 1.35rem; }
.mini-product { padding: 15px 0; display: grid; grid-template-columns: 74px 1fr auto; gap: 10px; align-items: center; border-bottom: 1px solid var(--line); }
.mini-product span { color: var(--blue); font-size: .72rem; font-weight: 900; }
.mini-product strong { font-size: .86rem; }
.mini-product i { color: var(--teal); font-style: normal; }

.about-sections section { position: relative; padding-left: 50px; margin-bottom: 38px; }
.about-sections span { position: absolute; top: 3px; left: 0; color: var(--teal); font-size: .76rem; font-weight: 900; }
.about-sections h2 { margin-bottom: 11px; font-size: 1.6rem; }
.timeline { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.timeline > div { padding: 32px; border-top: 4px solid var(--blue); background: #fff; }
.timeline strong { color: var(--blue-dark); font-size: 2rem; }
.principles { margin-top: 35px; padding: 34px; background: var(--ink); color: #fff; }
.principles h2 { font-size: 1.4rem; }
.principles span { margin: 8px 8px 0 0; padding: 7px 11px; display: inline-block; border: 1px solid #50667a; border-radius: 999px; font-size: .8rem; }

.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.capability-grid article { min-height: 260px; padding: 30px; border: 1px solid var(--line); }
.capability-grid span { color: var(--teal); font-size: .76rem; font-weight: 900; }
.capability-grid h2 { margin-top: 50px; font-size: 1.45rem; }
.lab-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.lab-gallery figure { margin: 0; overflow: hidden; background: #fff; border: 1px solid var(--line); }
.lab-gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.lab-gallery figcaption { padding: 14px 16px; color: #607386; font-size: .75rem; }

.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.resource-card { min-height: 270px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); }
.resource-card[hidden] { display: none; }
.resource-card > span { color: var(--success); font-size: .72rem; font-weight: 900; }
.resource-card h2 { margin: 40px 0 5px; font-size: 1.75rem; }
.resource-card > div { margin-top: auto; display: flex; align-items: center; gap: 15px; }
.resource-columns { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 18px 0; cursor: pointer; font-weight: 800; }
.faq-list p { padding-bottom: 18px; }
.guide-card { padding: 22px; margin-bottom: 14px; border-left: 4px solid var(--teal); background: #fff; }
.guide-card h3 { margin-bottom: 8px; }
.guide-card p { margin-bottom: 0; font-size: .9rem; }

.article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.article-card { min-height: 310px; padding: 36px; border: 1px solid var(--line); }
.article-card > span { color: #667a8c; font-size: .75rem; }
.article-card h2 { margin: 42px 0 15px; font-size: 1.65rem; }
.article-card h2 a:hover { color: var(--blue); }
.article-card .text-link { display: inline-block; margin-top: 18px; }
.article-page { padding-bottom: 100px; }
.article-header { padding-block: 78px 50px; }
.article-header h1 { font-size: clamp(2.45rem, 5vw, 4.4rem); }
.article-meta { padding-top: 20px; display: flex; flex-direction: column; gap: 7px; border-top: 1px solid var(--line); color: #617588; font-size: .78rem; }
.article-body { font-size: 1.04rem; }
.article-body section { margin-bottom: 42px; }
.article-body h2 { font-size: 1.8rem; }
.article-caution { margin: 55px 0; padding: 28px; border-left: 5px solid var(--amber); background: #fff8e7; }
.article-caution p { margin: 6px 0 0; }
.tag-links { display: flex; gap: 10px; flex-wrap: wrap; }
.tag-links a { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--blue); font-size: .82rem; font-weight: 800; }

.contact-grid { display: grid; grid-template-columns: 360px 1fr; gap: 34px; align-items: start; }
.contact-company { border-bottom: 1px solid var(--line); }
.contact-company .section-heading { margin-bottom: 52px; }
.contact-company .section-heading p { max-width: 850px; }
.contact-history .section-heading, .contact-action .section-heading { margin-bottom: 38px; }
.contact-card { padding: 30px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.contact-card dl, .contact-card dd { margin: 0; }
.contact-card dl > div { padding: 17px 0; border-bottom: 1px solid var(--line); }
.contact-card dt { color: #607589; font-size: .74rem; font-weight: 900; text-transform: uppercase; }
.contact-card dd { margin-top: 5px; color: var(--ink); }
.contact-card dd a { color: var(--blue); }
.map-link { min-height: 160px; margin-top: 24px; padding: 22px; display: flex; flex-direction: column; justify-content: space-between; background-color: #edf4f8; background-image: linear-gradient(#dae6ec 1px, transparent 1px), linear-gradient(90deg, #dae6ec 1px, transparent 1px); background-size: 24px 24px; color: var(--blue-dark); }
.map-link span { font-family: ui-monospace, monospace; font-size: .72rem; }
.form-panel { padding: 38px; display: grid; grid-template-columns: .7fr 1.3fr; gap: 42px; background: var(--mist); border: 1px solid var(--line); }
.contact-grid .form-panel { grid-template-columns: 1fr; }
.direct-contact { display: flex; flex-direction: column; gap: 8px; color: var(--blue); font-size: .9rem; font-weight: 800; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.form-grid textarea { resize: vertical; }
.field-wide { grid-column: 1 / -1; }
.check { flex-direction: row !important; align-items: flex-start; font-weight: 500 !important; }
.check input { width: 19px; min-height: 19px; margin-top: 3px; }
.check a { color: var(--blue); text-decoration: underline; }
.honeypot { position: absolute; left: -9999px; }
.form-panel form > .button { margin-top: 22px; }
.field-error { min-height: 0; color: var(--danger); font-size: .72rem; }
.form-status { margin: 15px 0 0; font-size: .86rem; font-weight: 700; }
.form-status.error { color: var(--danger); }
.form-status.success { color: var(--success); }

.legal-copy { font-size: 1.04rem; }
.legal-copy section { padding: 30px 0; border-bottom: 1px solid var(--line); }
.legal-copy h2 { font-size: 1.65rem; }
.legal-warning { padding: 20px; margin-bottom: 25px; border-left: 5px solid var(--amber); background: #fff7e4; font-weight: 700; }
.legal-updated { margin-top: 30px; color: #667a8c; font-size: .8rem; }

.site-footer { padding-top: 68px; background: #081a2b; color: #dceaf5; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.15fr .8fr; gap: 48px; }
.footer-grid h2 { color: #fff; font-size: .93rem; letter-spacing: .06em; text-transform: uppercase; }
.footer-grid > div { display: flex; flex-direction: column; gap: 10px; }
.footer-grid a, .footer-grid span, .footer-grid p { color: #9fb5c7; font-size: .82rem; }
.footer-grid a:hover { color: #fff; }
.footer-brand > strong { color: #fff; font-size: 1.25rem; }
.footer-bottom { margin-top: 55px; padding: 22px 0; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid #26394a; color: #8099ad; font-size: .76rem; }
.whatsapp-float { position: fixed; z-index: 80; right: 22px; bottom: 22px; width: 56px; height: 56px; display: grid; place-items: center; border: 3px solid #fff; border-radius: 50%; background: #25d366; color: #fff; box-shadow: 0 9px 25px rgba(0,0,0,.2); }
.whatsapp-float svg { width: 31px; height: 31px; }

@media (max-width: 1320px) {
  .brand { width: 190px; min-width: 190px; gap: 6px; }
  .brand-group-logo { width: 94px !important; height: 50px !important; }
  .brand-chemicals-logo { width: 81px !important; height: 46px !important; }
  .brand-divider { height: 37px; }
  .nav-list { gap: 4px; }
  .nav-list > .nav-node > .nav-link-row { padding-inline: 6px; }
  .site-nav a { font-size: .74rem; }
}

@media (max-width: 1100px) {
  .nav-actions .button { display: none; }
  .nav-list { gap: 5px; }
  .site-nav a { font-size: .78rem; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .application-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --container: min(100% - 30px, 720px); }
  .section { padding: 72px 0; }
  .utility-bar { display: none; }
  .nav-row { min-height: 76px; gap: 12px; }
  .brand { width: 166px; min-width: 166px; gap: 5px; }
  .brand-group-logo { width: 82px !important; height: 44px !important; }
  .brand-chemicals-logo { width: 70px !important; height: 40px !important; }
  .brand-divider { height: 33px; }
  .menu-toggle { margin-left: auto; width: 45px; height: 45px; padding: 9px; display: flex; flex-direction: column; justify-content: center; gap: 5px; }
  .menu-toggle span { width: 25px; height: 2px; display: block; background: var(--ink); }
  .menu-toggle b { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .site-nav { position: absolute; top: 76px; right: 0; left: 0; max-height: calc(100vh - 76px); padding: 14px 20px 28px; display: none; overflow-y: auto; border-top: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .nav-list { width: 100%; display: block; }
  .nav-list > .nav-node > .nav-link-row { min-height: 48px; margin-bottom: 8px; padding: 0 12px; border: 1px solid var(--line); border-radius: 8px; }
  .nav-link-row > a { padding: 12px 0; flex: 1; font-size: .95rem; }
  .nav-link-row > a::after { display: none; }
  .nav-submenu-toggle, .nav-submenu .nav-submenu-toggle { width: 45px; height: 45px; flex: 0 0 45px; font-size: 1.15rem; }
  .nav-submenu-toggle span { display: inline-block; transition: transform .2s ease; }
  .nav-node.open > .nav-link-row .nav-submenu-toggle span { transform: rotate(180deg); }
  .nav-node[data-depth]:not([data-depth="0"]).open > .nav-link-row .nav-submenu-toggle span { transform: rotate(90deg); }
  .nav-submenu, .nav-submenu .nav-submenu { position: static; width: auto; min-width: 0; max-width: none; max-height: none; margin-left: 10px; padding: 0 0 0 14px; display: none; overflow: visible; border: 0; border-left: 2px solid var(--teal); box-shadow: none; }
  .nav-submenu::before { display: none; }
  .nav-node:hover > .nav-submenu { display: none; }
  .nav-node.open > .nav-submenu { display: block; }
  .nav-submenu .nav-link-row { padding: 0 2px 0 8px; }
  .nav-submenu .nav-link-row > a { padding: 10px 6px; font-size: .88rem; }
  .nav-submenu .nav-link-row:hover { background: transparent; }
  .nav-actions { margin-left: 0; }
  .mother-hero, .mother-slide-copy { min-height: 580px; }
  .mother-slide-overlay { background: rgba(5,31,53,.7); }
  .mother-slide-copy { padding-block: 70px 100px; }
  .mother-slide-copy h1 { font-size: clamp(2.55rem, 8vw, 4.2rem); }
  .network-copy-shade { background: linear-gradient(180deg, rgba(2, 18, 34, .97) 0%, rgba(3, 25, 45, .84) 38%, rgba(3, 27, 48, .22) 72%, rgba(2,18,34,.45) 100%); }
  .mother-slide-copy--network { justify-content: flex-start; padding-top: 55px; }
  .mother-slide-copy--network h1 { max-width: 540px; font-size: clamp(2.45rem, 7vw, 3.6rem); }
  .mother-slide-copy--network h2 { max-width: 470px; }
  .network-legend { right: 18px; bottom: 72px; flex-direction: column; gap: 6px; }
  .home-hero { min-height: 670px; }
  .hero-content h1 { font-size: clamp(2.8rem, 10vw, 5rem); }
  .section-heading, .split-grid, .quality-inner, .product-hero-grid, .detail-grid, .application-detail, .resource-columns, .contact-grid, .form-panel { grid-template-columns: 1fr; gap: 40px; }
  .section-heading { align-items: start; }
  .product-grid, .capability-grid, .lab-gallery, .resource-grid, .source-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-family-grid { grid-template-columns: 1fr; }
  .catalog-family-card { min-height: 0; }
  .catalog-family-card h3, .catalog-family-card > p:not(.eyebrow) { min-height: 0; }
  .catalog-model-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-filter { top: 76px; }
  .quality-inner { gap: 55px; }
  .lab-stack { min-height: 410px; }
  .detail-aside, .application-detail aside { position: static; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  :root { --container: calc(100% - 24px); }
  body { font-size: .96rem; }
  .nav-actions { gap: 6px; }
  .language-switch a { min-width: 31px; padding-inline: 6px; }
  .mother-hero, .mother-slide-copy { min-height: 610px; }
  .mother-slide-copy { padding-block: 65px 105px; }
  .mother-slide-copy h1 { font-size: 2.55rem; }
  .mother-slide-copy h2 { font-size: 1.12rem; }
  .mother-slide-copy--network { padding: 43px 12px 120px; }
  .mother-slide-copy--network h1 { max-width: 320px; font-size: 2.35rem; }
  .mother-slide-copy--network h2 { max-width: 315px; margin-bottom: 18px; font-size: 1rem; }
  .mother-slide-copy--network .button { min-height: 42px; padding: 9px 14px; font-size: .82rem; }
  .network-popover { left: 12px !important; right: 12px; bottom: 72px; top: auto !important; width: auto; transform: none; }
  .network-legend { display: none; }
  .network-node { width: 30px; height: 30px; }
  .network-node-core { inset: 9px; }
  .mother-slider-controls { bottom: 18px; }
  .mother-slider-controls > button { display: none; }
  .home-hero { min-height: 720px; }
  .hero-overlay { background: rgba(5, 31, 53, .82); }
  .hero-content { padding-block: 65px; }
  .hero-content h1 { font-size: 2.7rem; }
  .hero-trust { flex-direction: column; gap: 10px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 18px; }
  .category-grid, .application-grid, .application-grid.large, .product-grid, .capability-grid, .lab-gallery, .resource-grid, .article-grid, .timeline, .system-grid, .source-grid { grid-template-columns: 1fr; }
  .catalog-stats { grid-template-columns: 1fr; }
  .catalog-stats div { min-height: 92px; border-right: 0; border-bottom: 1px solid var(--line); }
  .catalog-stats div:last-child { border-bottom: 0; }
  .catalog-jump { grid-template-columns: 1fr; }
  .catalog-jump a { min-height: 62px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .catalog-jump a:last-child { border-bottom: 0; }
  .catalog-filter { position: static; }
  .catalog-family-heading { padding: 28px 24px; grid-template-columns: 1fr; gap: 8px; }
  .catalog-category-panel { padding: 28px 20px 32px; }
  .catalog-model-grid { grid-template-columns: 1fr; }
  .catalog-model-card { min-height: 126px; }
  .system-card { min-height: 360px; }
  .materials-heading { align-items: flex-start; flex-direction: column; }
  .category-card { min-height: 235px; }
  .advantage-list { grid-template-columns: 1fr; }
  .media-card img, .media-card.tall img { min-height: 360px; }
  .lab-stack { min-height: 300px; }
  .lab-stack img { border-width: 5px; }
  .service-strip .container { align-items: flex-start; flex-direction: column; }
  .filter-bar { grid-template-columns: 1fr; }
  .issue-list, .form-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .spec-table div { grid-template-columns: 1fr; }
  .spec-table dd { padding-top: 0; border-left: 0; }
  .product-doc-card, .form-panel, .contact-card, .cta-panel { padding: 25px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .whatsapp-float { right: 14px; bottom: 14px; }
}

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

@media print {
  .site-header, .site-footer, .whatsapp-float, .button-row, .form-panel { display: none !important; }
  body { color: #000; }
  .section, .page-hero { padding: 30px 0; }
}