:root {
  --ink: #eef4fb;
  --muted: #a5b4c4;
  --faint: #6f8092;
  --blue: #075dcc;
  --blue-bright: #5da6ff;
  --bg: #070b12;
  --surface: #0d141e;
  --surface-2: #121d2a;
  --paper: #f3f6f9;
  --paper-2: #e7edf3;
  --paper-ink: #0b1724;
  --paper-muted: #607083;
  --line: rgba(214, 228, 242, .14);
  --dark-line: rgba(13, 32, 52, .13);
  --max: 1240px;
  --radius: 14px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Arial, "Helvetica Neue", system-ui, sans-serif; line-height: 1.5; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .4; background-image: linear-gradient(rgba(93,166,255,.032) 1px, transparent 1px), linear-gradient(90deg, rgba(93,166,255,.032) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, #000, transparent 75%); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
img { display: block; max-width: 100%; }
.site-header a:focus-visible, .site-header button:focus-visible, .button:focus-visible, .text-link:focus-visible, .chapter-link:focus-visible, .insight-card:focus-visible, .topic-rail a:focus-visible { outline: 3px solid rgba(93,166,255,.8); outline-offset: 3px; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 100; padding: 10px 14px; color: #fff; background: var(--blue); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--line); background: rgba(7, 11, 18, .88); backdrop-filter: blur(18px) saturate(140%); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.brand { display: flex; align-items: baseline; gap: 12px; min-width: max-content; }
.brand strong { font-size: 1.18rem; letter-spacing: .14em; }
.brand span { color: var(--faint); font-size: .68rem; letter-spacing: .055em; text-transform: uppercase; }
.nav-main { display: flex; align-items: center; gap: 3px; color: var(--muted); font-size: .86rem; }
.nav-main > a, .nav-group > button { min-height: 42px; display: inline-flex; align-items: center; border: 0; padding: 0 12px; border-radius: 8px; color: inherit; background: transparent; }
.nav-main > a:hover, .nav-main > a[aria-current="page"], .nav-group > button:hover, .nav-group.is-current > button { color: var(--ink); background: rgba(255,255,255,.07); }
.nav-group { position: relative; }
.nav-group > button::after { content: ""; width: 6px; height: 6px; margin: -3px 0 0 8px; border-right: 1px solid; border-bottom: 1px solid; transform: rotate(45deg); }
.nav-dropdown { position: absolute; top: calc(100% + 10px); left: 0; width: 230px; padding: 8px; border: 1px solid var(--line); border-radius: 10px; background: #0c131d; box-shadow: 0 20px 50px rgba(0,0,0,.32); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .2s ease; }
.nav-dropdown a { display: block; padding: 11px 12px; border-radius: 7px; color: var(--muted); }
.nav-dropdown a:hover { color: var(--ink); background: rgba(255,255,255,.06); }
.nav-group:hover .nav-dropdown, .nav-group:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: none; }
.mobile-language-links { display: none; }
.header-actions { display: flex; align-items: center; gap: 9px; margin-left: auto; }
.nav-whatsapp { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 16px; border: 1px solid rgba(62, 219, 123, .55); border-radius: 999px; color: #dfffea; background: rgba(26, 170, 88, .13); font-size: .84rem; font-weight: 700; white-space: nowrap; }
.nav-whatsapp:hover { border-color: #42dc7e; background: rgba(26, 170, 88, .24); }
.nav-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 17px; border-radius: 999px; color: #fff; background: var(--blue); font-size: .84rem; font-weight: 700; white-space: nowrap; }
.language-switcher { position: relative; }
.language-switcher > button { min-height: 42px; padding: 0 14px; border: 1px solid rgba(214,228,242,.2); border-radius: 999px; color: var(--muted); background: rgba(255,255,255,.04); font-size: .8rem; font-weight: 700; }
.language-switcher > button::after { content: ""; display: inline-block; width: 6px; height: 6px; margin: -3px 0 0 8px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: rotate(45deg); }
.language-menu { position: absolute; top: calc(100% + 10px); right: 0; z-index: 50; min-width: 170px; padding: 8px; border: 1px solid var(--line); border-radius: 10px; background: #0c131d; box-shadow: 0 20px 50px rgba(0,0,0,.32); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .2s ease; }
.language-switcher:hover .language-menu, .language-switcher:focus-within .language-menu, .language-switcher.is-open .language-menu { opacity: 1; visibility: visible; transform: none; }
.language-menu a { display: block; padding: 10px 12px; border-radius: 7px; color: var(--muted); font-size: .84rem; }
.language-menu a:hover, .language-menu a[aria-current="true"] { color: var(--ink); background: rgba(255,255,255,.07); }
.menu-button { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: transparent; }
.whatsapp-float { position: fixed; right: 24px; bottom: 24px; z-index: 80; display: inline-flex; align-items: center; gap: 10px; min-height: 54px; padding: 7px 17px 7px 8px; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; color: #fff; background: #1aa657; box-shadow: 0 16px 38px rgba(0,0,0,.32); font-size: .88rem; font-weight: 800; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.whatsapp-float:hover { transform: translateY(-3px); background: #138b48; box-shadow: 0 20px 44px rgba(0,0,0,.4); }
.whatsapp-float:focus-visible, .nav-whatsapp:focus-visible { outline: 3px solid rgba(93,166,255,.8); outline-offset: 3px; }
.wa-mark { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; color: #16884a; background: #fff; font-size: .72rem; letter-spacing: .04em; }

.eyebrow { display: block; margin-bottom: 18px; color: var(--blue-bright); font-size: .73rem; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, p { text-wrap: balance; }
h1 { margin: 0; max-width: 920px; font-size: clamp(3rem, 6.4vw, 6rem); line-height: .96; letter-spacing: -.04em; }
h2 { margin: 0; font-size: clamp(2rem, 4vw, 4.5rem); line-height: 1; letter-spacing: -.035em; }
h3 { margin: 0; font-size: 1.28rem; line-height: 1.15; }
.lead { max-width: 660px; margin: 27px 0 0; color: #c0ccda; font-size: 1.06rem; line-height: 1.72; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 19px; border: 1px solid rgba(214,228,242,.25); border-radius: 999px; color: var(--ink); background: transparent; font-size: .86rem; font-weight: 700; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); border-color: var(--blue-bright); background: rgba(255,255,255,.07); }
.button.primary { border-color: var(--blue); background: var(--blue); }
.button.dark { border-color: #10243a; color: #fff; background: #0b1724; }
.button.dark-outline { border-color: #8ca0b5; color: var(--paper-ink); }

.home-hero { position: relative; min-height: 720px; display: grid; align-items: end; overflow: hidden; }
.home-hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: url("../assets/approved/SHARED/vexira-elix-hero-bg.png") 58% center / cover no-repeat; transform: scale(1.02); animation: drift 18s ease-in-out infinite alternate; }
.home-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(92deg, rgba(7,11,18,.98) 0%, rgba(7,11,18,.85) 40%, rgba(7,11,18,.2) 78%, rgba(7,11,18,.54) 100%), linear-gradient(0deg, rgba(7,11,18,.96), transparent 60%); }
.hero-copy { padding: 120px 0 78px; }
.hero-copy .proof-strip { margin-top: 56px; }
@keyframes drift { from { transform: scale(1.02) translate3d(-.6%, 0, 0); } to { transform: scale(1.07) translate3d(.6%, -.4%, 0); } }
.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 900px; border-top: 1px solid var(--line); }
.proof-strip div { padding: 18px 18px 0 0; }
.proof-strip strong { display: block; color: var(--ink); font-size: .84rem; }
.proof-strip span { display: block; margin-top: 5px; color: var(--faint); font-size: .75rem; }
.hero-assurance { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; max-width: 980px; margin-top: 54px; border: 1px solid rgba(214,228,242,.14); background: rgba(214,228,242,.14); box-shadow: 0 22px 70px rgba(0,0,0,.24); }
.hero-assurance > div { min-height: 132px; padding: 24px 25px; background: linear-gradient(145deg, rgba(11,18,28,.78), rgba(7,11,18,.56)); backdrop-filter: blur(12px) saturate(130%); }
.hero-assurance strong { display: block; color: #fff; font-size: .98rem; letter-spacing: -.01em; }
.hero-assurance span { display: block; margin-top: 10px; color: #9fb0c2; font-size: .8rem; line-height: 1.58; }
.trust-strip-section { padding: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0a111b; }
.trust-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); }
.trust-strip > div { min-height: 150px; padding: 28px; background: linear-gradient(145deg, #0f1824, #0a111b); }
.trust-strip span { display: block; margin-bottom: 18px; color: var(--blue-bright); font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.trust-strip strong { display: block; max-width: 360px; color: #dfe9f4; font-size: .94rem; line-height: 1.55; }

.section { padding: 118px 0; }
.section-dark { background: var(--bg); }
.section-surface { background: var(--surface); }
.section-paper { color: var(--paper-ink); background: var(--paper); }
.section-head { display: grid; grid-template-columns: minmax(0, .9fr) minmax(300px, .55fr); gap: 64px; align-items: end; margin-bottom: 54px; }
.section-head p { margin: 0; color: var(--muted); line-height: 1.72; }
.section-paper .section-head p { color: var(--paper-muted); }
.systems { display: grid; grid-template-columns: 1.05fr .95fr; gap: 2px; background: var(--line); }
.system-panel { position: relative; min-height: 530px; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; background: var(--surface); }
.system-panel::before { content: ""; position: absolute; inset: 0; transition: transform .65s cubic-bezier(.16,1,.3,1); }
.system-panel::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(5,9,15,.98), rgba(5,9,15,.08) 76%); }
.system-panel:hover::before { transform: scale(1.045); }
.system-elix::before { background: url("../assets/approved/ELIX_PROCESS_STORYBOARD/elix-system-storyboard-v1.png") center / cover; }
.system-wirix::before { background: url("../assets/approved/WIRIX_SCENES/pct213-commercial-construction.png") center / cover; }
.system-copy { position: relative; z-index: 1; padding: 40px; }
.system-copy small { color: var(--blue-bright); letter-spacing: .12em; text-transform: uppercase; }
.system-copy p { max-width: 500px; margin: 15px 0 24px; color: #bdc9d6; }
.text-link { color: var(--ink); font-size: .84rem; font-weight: 700; }
.section-paper .text-link { color: var(--paper-ink); }

.chapter-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.chapter { min-height: 190px; padding: 27px; border-right: 1px solid var(--line); }
.chapter:last-child { border-right: 0; }
.chapter span { color: var(--blue-bright); font-size: .7rem; letter-spacing: .1em; }
.chapter h3 { margin-top: 22px; }
.chapter p { color: var(--muted); font-size: .85rem; }
.chapter-link { transition: background .2s ease; }
.chapter-link:hover { background: rgba(93,166,255,.07); }
.chapter-link strong { display: block; margin-top: 22px; color: var(--ink); font-size: .74rem; }

.application-mosaic { display: grid; grid-template-columns: minmax(0, 1.28fr) minmax(350px, .72fr); gap: 2px; min-height: 620px; background: var(--line); }
.application-feature, .application-route { position: relative; display: flex; align-items: flex-end; overflow: hidden; background: #08111d; isolation: isolate; }
.application-feature::after, .application-route::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgba(4,8,14,.96) 0%, rgba(4,8,14,.5) 42%, rgba(4,8,14,.04) 78%); transition: background .45s ease; }
.application-feature img, .application-route img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.16,1,.3,1), filter .45s ease; }
.application-feature img { object-position: 64% center; }
.application-feature:hover img, .application-route:hover img { transform: scale(1.035); filter: saturate(1.08); }
.application-feature:hover::after, .application-route:hover::after { background: linear-gradient(0deg, rgba(4,8,14,.97) 0%, rgba(4,8,14,.42) 46%, rgba(4,8,14,0) 80%); }
.application-feature:focus-visible, .application-route:focus-visible { outline: 3px solid var(--blue-bright); outline-offset: -3px; }
.application-feature .application-copy { padding: 48px; }
.application-copy { position: relative; z-index: 1; padding: 26px 30px; }
.application-copy h3 { max-width: 520px; font-size: clamp(1.45rem, 2.4vw, 2.25rem); }
.application-copy p { max-width: 540px; margin: 12px 0 18px; color: #d0dae5; line-height: 1.55; }
.application-copy strong { color: #fff; font-size: .79rem; }
.application-rail { display: grid; grid-template-rows: repeat(3, minmax(0, 1fr)); gap: 2px; }
.application-route { min-height: 0; }
.application-route img { object-position: center; }
.application-route .application-copy h3 { font-size: 1.2rem; }
.application-route .application-copy p { margin: 8px 0 12px; font-size: .8rem; }

.cta-band { display: flex; justify-content: space-between; gap: 32px; align-items: center; padding: 42px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cta-band h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
.cta-band p { margin: 8px 0 0; color: var(--muted); }
.consultation-cta { position: relative; overflow: hidden; padding: 112px 0; color: #fff; background: #05070d; border-top: 1px solid rgba(255,255,255,.08); border-bottom: 1px solid rgba(255,255,255,.08); }
.consultation-cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 72% 28%, rgba(7,93,204,.32), transparent 26%), linear-gradient(90deg, rgba(5,7,13,.98), rgba(5,7,13,.86) 55%, rgba(5,7,13,.58)); }
.consultation-cta::after { content: ""; position: absolute; right: -10%; top: 12%; width: 54vw; height: 54vw; border: 1px solid rgba(93,166,255,.18); border-radius: 50%; background: repeating-linear-gradient(90deg, rgba(93,166,255,.08) 0 1px, transparent 1px 24px); opacity: .45; transform: rotate(-10deg); }
.consultation-inner { position: relative; z-index: 1; }
.consultation-inner > span { display: block; margin-bottom: 20px; color: #d4b753; font-size: .82rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.consultation-inner h2 { max-width: 980px; font-size: clamp(3.2rem, 7vw, 7rem); line-height: .92; letter-spacing: -.055em; }
.consultation-inner p { max-width: 820px; margin: 30px 0 0; color: #aeb7c5; font-size: clamp(1rem, 1.6vw, 1.28rem); line-height: 1.75; }
.consultation-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.consultation-points strong { display: inline-flex; align-items: center; min-height: 36px; padding: 0 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; color: #d9e7f6; background: rgba(255,255,255,.04); font-size: .78rem; }
.consultation-cta .button:not(.primary) { background: rgba(255,255,255,.05); }
.certificate-template { display: grid; grid-template-columns: 180px minmax(0, 1fr) minmax(260px, .45fr); gap: 34px; align-items: start; padding: 38px; border: 1px solid rgba(93,166,255,.22); background: linear-gradient(135deg, rgba(7,93,204,.16), rgba(255,255,255,.03)); }
.certificate-template > span { color: var(--blue-bright); font-size: .7rem; font-weight: 800; letter-spacing: .14em; line-height: 1.55; text-transform: uppercase; }
.certificate-template h2 { max-width: 820px; font-size: clamp(2rem, 4vw, 4.2rem); }
.certificate-template p { max-width: 720px; color: #b7c5d4; line-height: 1.75; }
.certificate-template ul { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.certificate-template li { position: relative; padding-left: 20px; color: #d8e5f2; font-size: .9rem; }
.certificate-template li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 2px; background: var(--blue-bright); }

.page-hero { min-height: 470px; display: grid; align-items: end; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 78% 32%, rgba(7,93,204,.24), transparent 25%), linear-gradient(124deg, #111b27, #07101b 62%, #0a1c31); }
.page-hero .hero-copy { padding: 115px 0 68px; }
.page-hero h1 { font-size: clamp(3rem, 5.6vw, 5.8rem); }
.insights-hero { background: radial-gradient(circle at 80% 30%, rgba(7,93,204,.32), transparent 24%), linear-gradient(125deg, #121c28, #07101b 58%, #0a1c31); }
.series-hero { position: relative; overflow: hidden; }
.series-hero::before { content: ""; position: absolute; inset: 0; z-index: 0; opacity: .54; background: var(--series-image) 70% center / cover no-repeat; }
.series-hero::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(7,11,18,.98), rgba(7,11,18,.78) 46%, rgba(7,11,18,.28)), linear-gradient(0deg, rgba(7,11,18,.86), transparent 60%); }
.series-hero .hero-copy { position: relative; z-index: 2; }
.series-elix { --series-image: url("../assets/approved/ELIX/elix-toolfree-lit-strip.png"); }
.series-wirix { --series-image: url("../assets/approved/WIRIX_SCENES/pct213-luminaire-assembly.png"); }

.catalog-shell { color: var(--paper-ink); background: var(--paper); }
.catalog-toolbar { position: sticky; top: 76px; z-index: 20; padding: 18px 0; border-bottom: 1px solid var(--dark-line); background: rgba(243,246,249,.94); backdrop-filter: blur(16px); }
.search-row { display: grid; grid-template-columns: minmax(260px, 1fr) repeat(4, minmax(140px, .32fr)); gap: 10px; }
.search-field, .filter-field { display: grid; gap: 6px; }
.filter-field span { color: var(--paper-muted); font-size: .68rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.search-field input, .filter-field select, .quote-form input, .quote-form select, .quote-form textarea { width: 100%; min-height: 48px; border: 1px solid #c7d2de; border-radius: 8px; padding: 0 14px; color: var(--paper-ink); background: #fff; outline: none; }
.search-field input:focus, .filter-field select:focus, .quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(7,93,204,.12); }
.catalog-stage { padding: 64px 0 110px; }
.catalog-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 28px; }
.catalog-heading h2 { color: var(--paper-ink); font-size: clamp(2rem, 3vw, 3.6rem); }
.catalog-heading p { max-width: 620px; margin: 8px 0 0; color: var(--paper-muted); }
.result-count { color: var(--paper-muted); font-size: .9rem; }
.series-switch { display: inline-flex; padding: 4px; border: 1px solid #c8d4df; border-radius: 10px; background: #fff; }
.series-switch a { padding: 10px 15px; border-radius: 7px; color: var(--paper-muted); font-size: .82rem; font-weight: 700; }
.series-switch a[aria-current="page"] { color: #fff; background: var(--blue); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.product-card { min-width: 0; display: grid; grid-template-rows: 1fr auto; border: 1px solid #d3dde6; border-radius: 10px; background: #fff; overflow: hidden; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.product-card:hover { transform: translateY(-3px); border-color: #8fb5e5; box-shadow: 0 13px 30px rgba(18,41,65,.09); }
.product-quickview { min-width: 0; display: grid; align-content: start; border: 0; padding: 0; color: inherit; background: transparent; text-align: left; }
.product-media { height: 190px; display: grid; place-items: center; padding: 16px; border-bottom: 1px solid #e2e8ee; background: linear-gradient(145deg, #f9fbfc, #edf2f6); overflow: hidden; }
.product-media img { width: auto; height: auto; max-width: min(86%, 180px); max-height: 155px; object-fit: contain; }
.image-pending { min-height: 118px; display: grid; place-content: center; gap: 5px; color: #627286; text-align: center; }
.image-pending strong { font-size: .9rem; }
.image-pending span { font-size: .72rem; }
.product-series { margin: 19px 20px 0; color: var(--blue); font-size: .65rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-quickview > strong { margin: 9px 20px 0; color: var(--paper-ink); font-size: 1.18rem; overflow-wrap: anywhere; }
.product-name { min-height: 42px; margin: 6px 20px 0; color: var(--paper-muted); font-size: .82rem; }
.product-meta { margin: 10px 20px 18px; color: #38506a; font-size: .73rem; }
.product-detail-link { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; border-top: 1px solid #e1e7ed; color: #173551; font-size: .76rem; font-weight: 700; }
.product-detail-link:hover { color: var(--blue); }
.pagination { display: flex; justify-content: center; gap: 7px; margin-top: 36px; }
.pagination button { min-width: 40px; min-height: 40px; border: 1px solid #c7d2de; border-radius: 7px; color: var(--paper-ink); background: #fff; }
.pagination button[aria-current="page"] { border-color: var(--blue); color: #fff; background: var(--blue); }
.pagination button:disabled { cursor: default; opacity: .4; }
.empty-state { padding: 80px 24px; border: 1px solid #d3dde6; text-align: center; background: #fff; }
.empty-state h2 { color: var(--paper-ink); font-size: 2rem; }
.empty-state p { color: var(--paper-muted); }

.product-dialog { width: min(1000px, calc(100% - 40px)); max-height: min(760px, calc(100vh - 40px)); border: 0; border-radius: 12px; padding: 0; color: var(--paper-ink); background: #fff; box-shadow: 0 32px 90px rgba(0,0,0,.45); }
.product-dialog::backdrop { background: rgba(3,8,14,.74); backdrop-filter: blur(5px); }
.dialog-close { position: absolute; top: 14px; right: 14px; z-index: 3; width: 40px; height: 40px; border: 1px solid #d1dae3; border-radius: 50%; color: var(--paper-ink); background: #fff; }
.dialog-layout { display: grid; grid-template-columns: .82fr 1.18fr; min-height: 580px; }
.dialog-media { display: grid; place-items: center; min-height: 100%; padding: 34px; background: linear-gradient(145deg, #f4f7fa, #e4ebf1); }
.dialog-media img { max-width: 90%; max-height: 430px; object-fit: contain; }
.dialog-copy { padding: 52px 50px; overflow: auto; }
.dialog-copy h2 { color: var(--paper-ink); font-size: clamp(2rem, 4vw, 3.8rem); overflow-wrap: anywhere; }
.dialog-copy > p { color: var(--paper-muted); }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.dialog-copy .button:not(.primary) { border-color: #b9c7d5; color: var(--paper-ink); }
.spec-list { margin: 28px 0 0; border-top: 1px solid #d9e1e9; }
.spec-list div { display: grid; grid-template-columns: minmax(130px,.65fr) 1fr; gap: 20px; padding: 12px 0; border-bottom: 1px solid #e0e7ed; }
.spec-list dt { color: var(--paper-muted); }
.spec-list dd { margin: 0; color: var(--paper-ink); text-align: right; }

.detail-section { min-height: 70vh; padding: 70px 0 110px; color: var(--paper-ink); background: var(--paper); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; color: var(--paper-muted); font-size: .76rem; }
.breadcrumb a:hover { color: var(--blue); }
.product-detail { display: grid; grid-template-columns: minmax(360px,.85fr) minmax(0,1.15fr); gap: 64px; align-items: start; }
.detail-image { min-height: 500px; display: grid; place-items: center; border: 1px solid #d4dee7; background: #fff; }
.detail-image img { max-width: 82%; max-height: 440px; object-fit: contain; }
.detail-info .eyebrow { margin-bottom: 12px; }
.detail-info h1 { color: var(--paper-ink); font-size: clamp(2.6rem, 5vw, 5rem); overflow-wrap: anywhere; }
.detail-info .lead { color: var(--paper-muted); }
.detail-info .spec-list { margin-top: 36px; }
.detail-info .button:not(.primary) { border-color: #b8c6d4; color: var(--paper-ink); }
.detail-info .button.dark { border-color: #10243a; color: #fff; background: #0b1724; }

.section-compact { padding-top: 0; }
.section-link-row { display: flex; justify-content: flex-end; margin-top: 30px; }

.buyer-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.buyer-steps > div { min-height: 205px; padding: 30px; border-right: 1px solid var(--dark-line); }
.buyer-steps > div:last-child { border-right: 0; }
.buyer-steps span, .route-index, .evidence-flow span { color: var(--blue); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.buyer-steps h3 { margin-top: 26px; }
.buyer-steps p { margin-bottom: 0; color: var(--paper-muted); font-size: .86rem; }
.section-paper .actions { margin-top: 32px; }

.route-list { border-top: 1px solid var(--line); }
.route-row { display: grid; grid-template-columns: 120px minmax(230px, .9fr) minmax(290px, 1fr) 170px; gap: 32px; align-items: start; padding: 38px 0; border-bottom: 1px solid var(--line); }
.route-row > div:nth-child(2) p { max-width: 560px; color: var(--muted); }
.route-row dl { display: grid; gap: 13px; margin: 0; }
.route-row dl div { display: grid; grid-template-columns: 92px 1fr; gap: 14px; }
.route-row dt { color: var(--faint); font-size: .72rem; font-weight: 700; text-transform: uppercase; }
.route-row dd { margin: 0; color: #c3cfdb; font-size: .82rem; }
.route-actions { display: grid; gap: 12px; justify-items: start; }
.route-actions .text-link { color: var(--blue-bright); }

.signal-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.signal-grid > div { min-height: 210px; padding: 30px; background: var(--surface); }
.signal-grid span { color: var(--blue-bright); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.signal-grid strong { display: block; margin-top: 25px; font-size: 1.12rem; }
.signal-grid p { color: var(--muted); font-size: .84rem; }

.evidence-flow { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.evidence-flow > div { min-height: 235px; padding: 30px 25px; border-right: 1px solid var(--line); }
.evidence-flow > div:last-child { border-right: 0; }
.evidence-flow h3 { margin-top: 28px; }
.evidence-flow p { color: var(--muted); font-size: .83rem; }

.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--dark-line); background: #fff; }
.buyer-table { width: 100%; min-width: 760px; border-collapse: collapse; color: var(--paper-ink); }
.buyer-table th { padding: 15px 18px; color: #fff; background: #0b1724; font-size: .74rem; letter-spacing: .05em; text-align: left; text-transform: uppercase; }
.buyer-table td { padding: 17px 18px; border-bottom: 1px solid #dce4ec; color: #42566a; font-size: .86rem; vertical-align: top; }
.buyer-table tr:last-child td { border-bottom: 0; }
.buyer-table td:first-child { color: var(--paper-ink); font-weight: 700; }

.split-editorial { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--line); background: var(--line); }
.split-editorial > div { min-height: 390px; padding: 45px; background: var(--surface); }
.split-editorial h3 { max-width: 430px; font-size: clamp(1.7rem, 3vw, 3rem); }
.check-list { display: grid; gap: 12px; padding: 0; margin: 28px 0 0; list-style: none; }
.check-list li { position: relative; padding-left: 23px; color: var(--muted); }
.check-list li::before { content: ""; position: absolute; left: 0; top: .7em; width: 8px; height: 2px; background: var(--blue-bright); }
.section-paper .check-list li, .article-body .check-list li { color: var(--paper-muted); }

.insight-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); }
.insight-grid-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.insight-card { min-height: 320px; display: flex; flex-direction: column; align-items: flex-start; padding: 34px; background: var(--surface); transition: background .2s ease, transform .2s ease; }
.insight-card:hover { position: relative; z-index: 1; background: var(--surface-2); transform: translateY(-3px); }
.insight-card > span { color: var(--blue-bright); font-size: .68rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.insight-card h3 { max-width: 460px; margin-top: 28px; font-size: clamp(1.45rem, 2.2vw, 2.35rem); line-height: 1.04; }
.insight-card p { max-width: 480px; color: var(--muted); }
.insight-card > strong { margin-top: auto; color: var(--ink); font-size: .78rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 0; margin-top: 22px; color: var(--faint); font-size: .72rem; }
.article-meta span + span::before { content: "·"; margin: 0 9px; color: var(--faint); }
.insight-card .article-meta { margin: auto 0 18px; }

.featured-insight { display: grid; grid-template-columns: 1.25fr .75fr; gap: 80px; align-items: center; }
.featured-insight h2 { max-width: 790px; color: var(--paper-ink); }
.featured-insight > div > p { max-width: 760px; color: var(--paper-muted); font-size: 1.03rem; line-height: 1.75; }
.featured-insight aside { padding: 36px; border-left: 4px solid var(--blue); background: #e5ecf3; }
.featured-insight aside strong { color: var(--paper-ink); }
.featured-insight aside p { color: var(--paper-muted); }
.featured-insight .button { margin-top: 30px; }
.supply-notes { display: grid; grid-template-columns: .7fr 1.3fr; gap: 34px; align-items: start; margin-top: 58px; padding-top: 34px; border-top: 1px solid var(--dark-line); }
.supply-notes > div:first-child strong { display: block; color: var(--paper-ink); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.supply-notes > div:first-child p { margin: 13px 0 0; color: var(--paper-muted); }
.supply-note-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; border: 1px solid #d3dde6; background: #d3dde6; }
.supply-note-grid div { padding: 22px; background: #fff; }
.supply-note-grid span { color: var(--blue); font-size: .68rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.supply-note-grid p { margin: 11px 0 0; color: var(--paper-muted); font-size: .88rem; line-height: 1.62; }

.topic-rail { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.topic-rail a { min-height: 210px; display: flex; flex-direction: column; padding: 28px; border-right: 1px solid var(--line); transition: background .2s ease; }
.topic-rail a:last-child { border-right: 0; }
.topic-rail a:hover { background: rgba(93,166,255,.07); }
.topic-rail span { color: var(--blue-bright); font-size: .7rem; }
.topic-rail strong { margin-top: 28px; font-size: 1.08rem; }
.topic-rail small { margin-top: auto; color: var(--faint); }

.article-hero { padding: 80px 0 72px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 78% 28%, rgba(7,93,204,.24), transparent 24%), linear-gradient(124deg, #111b27, #07101b 62%, #0a1c31); }
.article-hero h1 { max-width: 1050px; font-size: clamp(3rem, 5.6vw, 5.6rem); }
.article-hero .breadcrumb { margin-bottom: 60px; color: var(--faint); }
.article-hero .article-meta { margin-top: 35px; }
.article-layout { position: relative; display: grid; grid-template-columns: minmax(0, 760px) 250px; gap: 90px; align-items: start; padding-top: 78px; padding-bottom: 120px; color: var(--paper-ink); }
.article-layout::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; z-index: -1; width: 100vw; background: var(--paper); transform: translateX(-50%); }
.article-body { min-width: 0; }
.article-body > h2 { margin-top: 66px; color: var(--paper-ink); font-size: clamp(2rem, 3.5vw, 3.15rem); }
.article-body > h2:first-of-type { margin-top: 52px; }
.article-body > h3 { margin-top: 38px; color: var(--paper-ink); }
.article-body > p, .article-body > ul, .article-body > ol { color: #485e73; font-size: 1rem; line-height: 1.85; }
.article-body b, .article-body strong { color: var(--paper-ink); }
.article-body .table-wrap { margin: 28px 0 38px; }
.answer-box { padding: 30px 32px; border-left: 4px solid var(--blue); background: #e7edf3; }
.answer-box strong { display: block; color: var(--blue); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.answer-box p { margin: 12px 0 0; color: #334b61; font-size: 1.08rem; line-height: 1.75; }
.article-visual { margin: 34px 0 46px; border: 1px solid #d0dae4; background: #0b1724; }
.article-visual img { width: 100%; max-height: 430px; object-fit: cover; }
.article-visual figcaption { padding: 14px 18px; color: #b6c5d4; font-size: .78rem; }
.article-note { margin: 28px 0; padding: 23px 26px; border: 1px solid #cad6e2; color: #42586d; background: #edf2f6; }
.buyer-confidence { margin-top: 58px; padding: 30px; border: 1px solid #cbd7e2; background: #eef3f7; }
.buyer-confidence > strong { display: block; color: var(--blue); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.buyer-confidence ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 26px; padding: 0; margin: 22px 0 0; list-style: none; }
.buyer-confidence li { position: relative; padding-left: 20px; color: #3d5268; font-size: .9rem; line-height: 1.55; }
.buyer-confidence li::before { content: ""; position: absolute; left: 0; top: .7em; width: 8px; height: 2px; background: var(--blue); }
.comparison-grid, .mistake-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 28px 0; border: 1px solid #d5dfe8; background: #d5dfe8; }
.comparison-grid > div, .mistake-list > div { padding: 25px; background: #fff; }
.comparison-grid p, .mistake-list p { margin-bottom: 0; color: var(--paper-muted); font-size: .86rem; }
.copy-checklist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 28px 0; border: 1px solid #d4dee7; background: #d4dee7; }
.copy-checklist span { position: relative; padding: 16px 18px 16px 44px; color: #354d63; background: #fff; }
.copy-checklist span::before { content: ""; position: absolute; left: 18px; top: 20px; width: 12px; height: 7px; border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(-45deg); }
.article-cta { display: flex; justify-content: space-between; gap: 30px; align-items: center; margin-top: 64px; padding: 42px; color: var(--ink); background: linear-gradient(135deg, #07101b, #0d1b2b); border: 1px solid rgba(93,166,255,.18); }
.article-cta h2 { max-width: 620px; color: var(--ink); font-size: clamp(2rem, 4vw, 3.6rem); line-height: .98; letter-spacing: -.04em; }
.article-cta p { max-width: 560px; margin-bottom: 0; color: #aeb9c7; }
.related-seo-links { margin: 56px auto 0; max-width: var(--wrap); padding: 30px 34px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.04); }
.related-seo-links h2 { margin: 0 0 12px; color: var(--ink); font-size: clamp(1.15rem, 1.8vw, 1.55rem); }
.related-seo-links p { margin: 0; color: var(--muted); line-height: 1.9; }
.related-seo-links a { color: var(--ink); font-weight: 700; }
.article-aside { position: sticky; top: 110px; display: grid; padding: 24px 0; border-top: 1px solid #cbd6e0; border-bottom: 1px solid #cbd6e0; }
.article-aside strong { margin-bottom: 16px; color: var(--paper-ink); font-size: .77rem; letter-spacing: .07em; text-transform: uppercase; }
.article-aside a { padding: 8px 0; color: var(--paper-muted); font-size: .8rem; }
.article-aside a:hover { color: var(--blue); }
.faq-list { display: grid; gap: 1px; margin-top: 28px; background: #d5dfe8; }
.faq-list details { padding: 20px 24px; background: #fff; }
.faq-list summary { cursor: pointer; color: var(--paper-ink); font-weight: 700; }
.faq-list p { color: var(--paper-muted); }
.numbered-checklist { display: grid; gap: 1px; padding: 0 !important; border: 1px solid #d5dfe8; background: #d5dfe8; list-style: none; counter-reset: checklist; }
.numbered-checklist li { position: relative; display: grid; gap: 5px; padding: 22px 24px 22px 70px; background: #fff; counter-increment: checklist; }
.numbered-checklist li::before { content: counter(checklist, decimal-leading-zero); position: absolute; left: 24px; top: 22px; color: var(--blue); font-size: .74rem; font-weight: 800; }
.numbered-checklist span { color: var(--paper-muted); font-size: .88rem; }
.formula-row { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 14px; align-items: center; margin: 28px 0; }
.formula-row div { min-height: 110px; padding: 20px; border: 1px solid #d2dde6; background: #fff; }
.formula-row span, .formula-stack span { display: block; color: var(--blue); font-size: .69rem; font-weight: 800; text-transform: uppercase; }
.formula-row strong { display: block; margin-top: 12px; font-size: .88rem; }
.formula-row i { color: var(--blue); font-style: normal; }
.formula-stack { display: grid; gap: 1px; margin: 28px 0; border: 1px solid #d2dde6; background: #d2dde6; }
.formula-stack div { display: grid; grid-template-columns: 190px 1fr; gap: 20px; padding: 20px 22px; background: #fff; }
.formula-stack code { color: #314a60; font-size: .88rem; overflow-wrap: anywhere; }

.catalog-library-section { background: linear-gradient(180deg, #070b12 0%, #0a1019 100%); }
.catalog-library { display: grid; gap: 18px; }
.catalog-entry { display: grid; grid-template-columns: minmax(205px, .74fr) minmax(0, 1.26fr); overflow: hidden; border: 1px solid rgba(173,199,228,.18); border-radius: var(--radius); background: linear-gradient(145deg, #101a27, #0b131e); box-shadow: 0 24px 60px rgba(0,0,0,.16); transition: transform .28s cubic-bezier(.16,1,.3,1), border-color .28s ease, box-shadow .28s ease; }
.catalog-entry:hover { transform: translateY(-4px); border-color: rgba(93,166,255,.5); box-shadow: 0 30px 70px rgba(0,0,0,.25); }
.catalog-featured { grid-template-columns: minmax(330px, .68fr) minmax(0, 1.32fr); min-height: 480px; }
.catalog-cover { min-width: 0; min-height: 100%; display: grid; place-items: center; margin: 0; padding: 34px; border-right: 1px solid rgba(173,199,228,.15); background: linear-gradient(145deg, #182636, #0d1824); }
.catalog-cover img { width: 100%; max-width: 360px; max-height: 390px; border: 1px solid rgba(255,255,255,.12); object-fit: contain; box-shadow: 0 24px 55px rgba(0,0,0,.35); transition: transform .45s cubic-bezier(.16,1,.3,1); }
.catalog-entry:hover .catalog-cover img { transform: scale(1.018); }
.catalog-featured .catalog-cover img { max-width: 295px; max-height: 410px; }
.catalog-entry-copy { min-width: 0; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 42px; }
.catalog-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 9px 0; color: var(--blue-bright); font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.catalog-meta span { display: inline-flex; align-items: center; white-space: nowrap; }
.catalog-meta span + span::before { content: ""; width: 1px; height: 12px; margin: 0 12px; background: rgba(173,199,228,.25); }
.catalog-entry h2 { max-width: 650px; margin-top: 18px; font-size: clamp(2rem, 3.25vw, 3.8rem); }
.catalog-entry p { max-width: 590px; margin: 20px 0 0; color: #b8c6d5; }
.catalog-entry .button { margin-top: 30px; white-space: nowrap; }
.catalog-supporting-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.catalog-supporting-grid .catalog-entry { min-height: 390px; }
.catalog-supporting-grid .catalog-cover { padding: 24px; }
.catalog-supporting-grid .catalog-cover img { max-width: 220px; max-height: 300px; }
.catalog-supporting-grid .catalog-entry-copy { padding: 32px; }
.catalog-supporting-grid .catalog-entry h2 { font-size: clamp(1.75rem, 2.4vw, 2.65rem); }
.catalog-supporting-grid .catalog-entry p { font-size: .9rem; }

.quote-layout { display: grid; grid-template-columns: .62fr 1fr; gap: 70px; align-items: start; }
.quote-aside { position: sticky; top: 112px; }
.quote-aside p { color: var(--paper-muted); }
.quote-points { display: grid; gap: 16px; margin-top: 34px; }
.quote-points div { padding-top: 16px; border-top: 1px solid #cfdae4; }
.quote-points strong { display: block; }
.quote-points span { color: var(--paper-muted); font-size: .82rem; }
.quote-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 17px; padding: 34px; border: 1px solid #cfdae4; background: #fff; }
.quote-form label { display: grid; gap: 7px; color: #4c5f72; font-size: .78rem; font-weight: 700; }
.quote-form .span-2 { grid-column: 1 / -1; }
.quote-form textarea { min-height: 140px; padding-top: 13px; resize: vertical; }
.quote-form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; padding-top: 6px; }
.quote-form .button { border-color: #b8c6d4; color: var(--paper-ink); }
.quote-form .button.primary { border-color: var(--blue); color: #fff; }

.footer { padding: 34px 0 46px; border-top: 1px solid var(--line); color: var(--faint); font-size: .76rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer a:hover { color: var(--ink); }
.series-proof { max-width: 820px; margin: 26px 0 0; padding: 14px 18px; border-left: 3px solid var(--blue-bright); background: rgba(7,93,204,.14); color: #c9d7e6; font-size: .82rem; line-height: 1.6; }
.series-proof strong { color: #fff; }
.certification-band { display: grid; grid-template-columns: 180px minmax(0,1fr) auto; gap: 30px; align-items: start; margin-top: 34px; padding: 30px; border: 1px solid var(--line); background: rgba(7,93,204,.08); }
.certification-band > span { color: var(--blue-bright); font-size: .68rem; font-weight: 800; letter-spacing: .14em; line-height: 1.55; }
.certification-band h3 { margin: 0 0 8px; font-size: clamp(1.15rem,1.8vw,1.55rem); }
.certification-band p { margin: 0; color: var(--faint); }
.certification-band .text-link { white-space: nowrap; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1020px) {
  .nav-main { display: none; position: absolute; top: 76px; left: 0; right: 0; align-items: stretch; flex-direction: column; padding: 14px 24px 22px; border-bottom: 1px solid var(--line); background: #080d14; }
  .nav-main.is-open { display: flex; }
  .nav-main > a, .nav-group > button { width: 100%; justify-content: flex-start; }
  .nav-dropdown { position: static; width: auto; margin: 2px 0 8px 18px; border: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; background: transparent; }
  .mobile-language-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin-top: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
  .mobile-language-links span { grid-column: 1 / -1; color: var(--faint); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
  .mobile-language-links a { padding: 10px 12px; border-radius: 8px; color: var(--muted); background: rgba(255,255,255,.04); font-size: .84rem; }
  .mobile-language-links a[aria-current="true"] { color: #fff; background: var(--blue); }
  .menu-button { display: inline-grid; place-items: center; }
  .header-actions { margin-left: auto; }
  .language-switcher { display: none; }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .search-row { grid-template-columns: 1fr repeat(2, minmax(140px,.35fr)); }
  .search-row label:nth-child(n+4) { display: none; }
  .route-row { grid-template-columns: 90px minmax(0, 1fr) minmax(240px, .8fr); }
  .route-actions { grid-column: 2 / -1; grid-auto-flow: column; justify-content: start; }
  .evidence-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .certificate-template { grid-template-columns: 1fr; }
  .evidence-flow > div:nth-child(3) { border-right: 0; }
  .evidence-flow > div:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
  .article-layout { grid-template-columns: minmax(0, 1fr) 210px; gap: 55px; }
  .application-mosaic { grid-template-columns: 1fr; min-height: 0; }
  .application-feature { min-height: 500px; }
  .application-rail { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: none; }
  .application-route { min-height: 280px; }
}

@media (max-width: 760px) {
  .wrap { width: min(var(--max), calc(100% - 32px)); }
  .brand span { display: none; }
  .header-actions { display: none; }
  .whatsapp-float { right: 16px; bottom: 16px; min-height: 50px; padding: 6px 15px 6px 7px; }
  .wa-mark { width: 38px; height: 38px; }
  .home-hero { min-height: 670px; }
  .hero-copy, .page-hero .hero-copy { padding: 98px 0 54px; }
  h1 { font-size: clamp(2.75rem, 13vw, 4.4rem); }
  .section { padding: 86px 0; }
  .section-head, .quote-layout, .product-detail { grid-template-columns: 1fr; gap: 28px; }
  .systems, .catalog-supporting-grid { grid-template-columns: 1fr; }
  .catalog-entry, .catalog-featured { grid-template-columns: 1fr; }
  .catalog-cover { min-height: 300px; border-right: 0; border-bottom: 1px solid rgba(173,199,228,.15); }
  .catalog-featured .catalog-cover img, .catalog-supporting-grid .catalog-cover img { max-width: 290px; max-height: 340px; }
  .catalog-entry-copy, .catalog-supporting-grid .catalog-entry-copy { padding: 30px 26px 34px; }
  .system-panel { min-height: 430px; }
  .application-feature { min-height: 430px; }
  .application-feature .application-copy { padding: 30px; }
  .application-rail { grid-template-columns: 1fr; }
  .application-route { min-height: 300px; }
  .proof-strip, .chapter-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-assurance { grid-template-columns: 1fr; max-width: 680px; }
  .hero-assurance > div { min-height: 0; }
  .trust-strip { grid-template-columns: 1fr; }
  .trust-strip > div { min-height: 0; }
  .chapter:nth-child(2) { border-right: 0; }
  .chapter:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .catalog-toolbar { position: static; }
  .search-row { grid-template-columns: 1fr 1fr; }
  .search-field { grid-column: 1 / -1; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-heading { align-items: flex-start; flex-direction: column; }
  .dialog-layout { grid-template-columns: 1fr; }
  .dialog-media { min-height: 290px; }
  .dialog-copy { padding: 34px 26px; }
  .product-detail { gap: 32px; }
  .detail-image { min-height: 360px; }
  .quote-aside { position: static; }
  .buyer-steps, .signal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .buyer-steps > div:nth-child(2), .signal-grid > div:nth-child(2) { border-right: 0; }
  .buyer-steps > div:nth-child(-n+2) { border-bottom: 1px solid var(--dark-line); }
  .route-row { grid-template-columns: 78px 1fr; gap: 22px; }
  .route-row dl, .route-actions { grid-column: 2; }
  .evidence-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .evidence-flow > div:nth-child(3) { border-right: 1px solid var(--line); }
  .evidence-flow > div:nth-child(even) { border-right: 0; }
  .evidence-flow > div:nth-child(-n+4) { border-bottom: 1px solid var(--line); }
  .split-editorial, .featured-insight, .supply-notes { grid-template-columns: 1fr; gap: 28px; }
  .insight-grid, .insight-grid-four { grid-template-columns: 1fr 1fr; }
  .topic-rail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topic-rail a:nth-child(2) { border-right: 0; }
  .topic-rail a:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .article-layout { grid-template-columns: 1fr; gap: 40px; padding-top: 58px; }
  .certification-band { grid-template-columns: 1fr; gap: 18px; }
  .certification-band .text-link { white-space: normal; }
  .article-aside { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 22px; }
  .article-aside strong { grid-column: 1 / -1; }
  .article-cta { align-items: flex-start; flex-direction: column; }
  .article-cta .button { width: auto; }
}

@media (max-width: 470px) {
  .whatsapp-float { right: 12px; bottom: 12px; width: 48px; min-height: 48px; padding: 5px; }
  .wa-mark { width: 36px; height: 36px; font-size: .68rem; }
  .wa-label { display: none; }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-strip div { padding-right: 8px; }
  .hero-assurance { margin-top: 40px; }
  .hero-assurance > div { padding: 21px 20px; }
  .actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .system-copy { padding: 28px; }
  .product-grid { grid-template-columns: 1fr; }
  .search-row { grid-template-columns: 1fr; }
  .search-field { grid-column: auto; }
  .search-row label:not([hidden]) { display: grid !important; }
  .product-media { height: 180px; }
  .catalog-entry-copy, .catalog-supporting-grid .catalog-entry-copy { padding: 28px 24px 32px; }
  .quote-form { grid-template-columns: 1fr; padding: 24px 20px; }
  .quote-form .span-2, .quote-form-actions { grid-column: auto; }
  .spec-list div { grid-template-columns: 1fr; gap: 4px; }
  .spec-list dd { text-align: left; }
  .cta-band { align-items: flex-start; flex-direction: column; }
  .buyer-steps, .signal-grid, .evidence-flow, .insight-grid, .insight-grid-four, .topic-rail, .comparison-grid, .mistake-list, .copy-checklist, .supply-note-grid, .buyer-confidence ul { grid-template-columns: 1fr; }
  .buyer-steps > div, .evidence-flow > div, .topic-rail a { border-right: 0; border-bottom: 1px solid var(--line); }
  .buyer-steps > div:last-child, .evidence-flow > div:last-child, .topic-rail a:last-child { border-bottom: 0; }
  .route-row { grid-template-columns: 1fr; }
  .route-row dl, .route-actions { grid-column: auto; }
  .route-actions { grid-auto-flow: row; }
  .split-editorial > div { min-height: 0; padding: 32px 24px; }
  .article-hero { padding: 56px 0 48px; }
  .article-hero .breadcrumb { margin-bottom: 42px; }
  .article-layout { padding-top: 42px; padding-bottom: 80px; }
  .answer-box { padding: 24px 22px; }
  .article-body > h2 { margin-top: 52px; }
  .article-aside { grid-template-columns: 1fr; }
  .article-cta { padding: 26px 22px; }
  .article-cta .button { width: 100%; }
  .formula-row { grid-template-columns: 1fr; }
  .formula-row i { transform: rotate(90deg); text-align: center; }
  .formula-stack div { grid-template-columns: 1fr; gap: 8px; }
}