/* DIANLETE aesthetic reconstruction layer.
   Keeps the archived content model intact while replacing its visual world. */

:root {
  --ink: #07141a;
  --graphite: #25343b;
  --muted: #687980;
  --line: #cbd8dc;
  --soft-line: #e5ecee;
  --paper: #ffffff;
  --mist: #f4f7f7;
  --mist-blue: #e8f1f3;
  --brand: #007f9b;
  --brand-dark: #005f75;
  --brand-bright: #00a7c7;
  --signal: #b7d92f;
  --radius: 3px;
  --media-radius: 6px;
  --shadow: 0 28px 70px rgba(27, 58, 68, .14);
  --display: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --body: "Helvetica Neue", Arial, sans-serif;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

* { letter-spacing: 0; }
html { background: var(--paper); }
body {
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
::selection { color: #fff; background: var(--brand); }
a, button, input, select, textarea { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(0, 167, 199, .36);
  outline-offset: 3px;
}
img { color: transparent; }
.container { width: min(1360px, calc(100% - 72px)); }
section { position: relative; padding: 116px 0; }
section[id], main[id] { scroll-margin-top: 72px; }

h1, h2, .footer-brand, .video-journal-head h2, .credential-head h2,
.engineering-flow h2, .more-catalog-head h3, .resource-hub h2 {
  font-family: var(--display);
  font-stretch: condensed;
  letter-spacing: -.035em;
  text-wrap: balance;
}
h2 {
  margin: 0;
  max-width: 940px;
  font-size: clamp(42px, 5.1vw, 76px);
  font-weight: 800;
  line-height: .98;
}
h3 { text-wrap: balance; }
p { max-width: 72ch; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--brand-dark);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--signal);
}

/* Navigation */
.topbar {
  height: 72px;
  border-bottom: 1px solid rgba(7, 20, 26, .12);
  background: rgba(255, 255, 255, .93);
  backdrop-filter: blur(20px) saturate(130%);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
}
.topbar::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--brand) 0 14%, transparent 14%);
}
.topbar.scrolled { box-shadow: 0 14px 40px rgba(18, 42, 50, .08); }
.nav { gap: 26px; }
.brand {
  min-width: 250px;
  height: 72px;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(37px, 3vw, 49px);
  font-weight: 900;
  letter-spacing: -.035em;
}
.brand::after {
  display: none;
}
.nav-links { gap: 25px; font-size: 11px; font-weight: 700; color: #263941; }
.nav-links a { padding: 27px 0 26px; }
.nav-links a::after { inset: auto 0 20px; height: 1px; background: var(--brand); }
.nav-links a.active { color: var(--brand-dark); }
.nav-links a.active::after { transform: scaleX(1); }
.nav-tools { gap: 8px; }
.language-list { gap: 5px; color: #85949a; }
.language-list button {
  padding: 5px 2px;
  border: 0;
  color: var(--graphite);
  background: transparent;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
}
.language-list button:hover { color: var(--brand); }
.btn {
  min-height: 44px;
  padding: 0 19px;
  border-radius: var(--radius);
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  transition: transform .3s var(--ease-out), color .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 24px rgba(0, 127, 155, .2);
}
.btn-primary:hover { background: var(--brand-dark); box-shadow: 0 14px 30px rgba(0, 95, 117, .25); }
.btn-outline { border-color: #80959d; color: var(--ink); background: rgba(255,255,255,.9); }
.btn-outline:hover { border-color: var(--ink); background: #fff; }
.btn-whatsapp { border-color: #6d858d; color: #33494f; background: transparent; }
.scroll-progress { height: 2px; background: var(--brand-bright); }

/* First viewport: the product and the proof share one engineered field. */
.hero {
  min-height: clamp(720px, 92dvh, 920px);
  padding: 72px 0 0;
  background: #dce7e9;
}
.hero-background {
  position: absolute;
  inset: 72px 0 0;
  width: 100%;
  height: calc(100% - 72px);
  object-fit: cover;
  object-position: 58% center;
  filter: saturate(.88) contrast(1.02);
}
.hero-shade {
  position: absolute;
  z-index: 1;
  inset: 72px 0 0;
  background:
    linear-gradient(90deg, rgba(247,250,250,.99) 0%, rgba(247,250,250,.96) 29%, rgba(247,250,250,.72) 43%, rgba(247,250,250,.08) 67%, rgba(7,20,26,.08) 100%),
    linear-gradient(0deg, rgba(7,20,26,.2), transparent 35%);
}
.hero::before {
  content: "";
  position: absolute;
  z-index: 2;
  left: max(36px, calc((100vw - 1360px) / 2));
  top: 114px;
  width: 1px;
  height: 76px;
  background: linear-gradient(var(--brand), var(--signal));
}
.hero-inner {
  min-height: calc(clamp(720px, 92dvh, 920px) - 72px);
  align-items: center;
  padding: 42px 0 118px;
}
.hero-copy { width: min(650px, 48%); }
.hero-copy::before {
  margin: 0 0 18px 18px;
  color: var(--brand-dark);
  font-size: 10px;
  letter-spacing: .05em;
}
h1 {
  max-width: 660px;
  font-size: clamp(54px, 6.4vw, 96px);
  font-weight: 900;
  line-height: .91;
  letter-spacing: -.04em;
  text-transform: uppercase;
}
h1 span { color: var(--brand); }
.hero-text {
  margin: 26px 0 0;
  max-width: 560px;
  color: #2d424a;
  font-size: clamp(15px, 1.3vw, 19px);
  font-weight: 500;
  line-height: 1.5;
}
.hero-actions { margin-top: 30px; gap: 10px; }
.hero-actions .btn { min-height: 50px; padding-inline: 23px; }
.hero-proof {
  width: min(610px, 100%);
  margin-top: 30px;
  padding: 17px 20px 16px;
  border: 0;
  border-top: 1px solid rgba(7, 20, 26, .25);
  border-bottom: 1px solid rgba(7, 20, 26, .14);
  background: rgba(255,255,255,.64);
  box-shadow: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.hero-proof img { width: 54px; height: 72px; object-fit: cover; object-position: top; }
.hero-proof h3 { font-size: 12px; letter-spacing: .02em; text-transform: uppercase; }
.hero-test-grid { gap: 17px; }
.hero-test-grid strong { color: var(--brand-dark); font-family: var(--display); font-size: 26px; letter-spacing: -.02em; }
.hero-test-grid span { max-width: 120px; color: #50656d; font-size: 8px; line-height: 1.35; }
.hero-report-number { margin-top: 8px; color: #52676f; font-size: 8px; }
.hero-brand-mark {
  right: 2.5%;
  bottom: 18px;
  color: rgba(255,255,255,.82);
  font-family: var(--display);
  font-size: clamp(86px, 10vw, 168px);
  font-weight: 900;
  letter-spacing: -.045em;
  text-shadow: 0 1px 10px rgba(7,20,26,.08);
  mix-blend-mode: soft-light;
}
.hero-brand-mark small { color: rgba(255,255,255,.9); font-family: var(--body); letter-spacing: .08em; }

/* Engineering process */
.engineering-flow {
  padding: 52px 0 50px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.engineering-flow::before {
  content: "ENGINEERING PATH / 01—05";
  position: absolute;
  top: 18px;
  right: max(36px, calc((100vw - 1360px) / 2));
  color: #809198;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .08em;
}
.engineering-flow h2 {
  margin: 0 0 30px;
  font-size: clamp(27px, 2.8vw, 42px);
  font-weight: 800;
  text-transform: none;
}
.flow-grid { gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.flow-step { padding: 18px 16px 16px; border-right: 1px solid var(--line); }
.flow-step:first-child { padding-left: 0; }
.flow-step:last-child { padding-right: 0; border-right: 0; }
.flow-step:not(:last-child)::after { display: none; }
.flow-label { min-height: 34px; font-size: 9px; letter-spacing: .03em; }
.flow-label span { color: var(--brand); font-size: 11px; }
.flow-visual { min-height: 82px; background: var(--mist); }
.flow-visual img { filter: saturate(.88); }
.phase-specs { margin-top: 24px; gap: 32px; }
.phase-spec h3 { font-size: 10px; letter-spacing: .02em; }
.phase-line { font-size: 8px; }
.phase-line i { height: 5px; }
.flow-note { margin: 20px auto 0; color: var(--muted); font-size: 10px; }

/* Product dossier */
.product-catalog { padding: 118px 0 124px; background: var(--mist); }
.product-catalog::before {
  content: "PDF / DIMENSIONED PRODUCT EVIDENCE";
  position: absolute;
  top: 34px;
  left: max(36px, calc((100vw - 1360px) / 2));
  color: #819198;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .08em;
}
.section-head {
  display: block;
  margin-bottom: 54px;
}
.section-head h2 { margin-top: 10px; }
.section-head > p {
  margin: 22px 0 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.catalog-item {
  min-height: 370px;
  grid-template-columns: 1.12fr .88fr;
  border: 0;
  background: #fff;
}
.catalog-media { min-height: 370px; background: #f9fbfb; }
.catalog-media img { padding: 10px; filter: saturate(.9) contrast(1.02); }
.catalog-copy { padding: 32px 28px; border-left: 1px solid var(--soft-line); }
.catalog-copy small { color: var(--brand-dark); font-size: 9px; letter-spacing: .05em; }
.catalog-copy h3 { margin: 15px 0 8px; font-size: 21px; line-height: 1.16; }
.catalog-cn { color: #73858c; font-size: 12px; }
.product-size {
  width: 100%;
  margin-top: 22px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.product-size span { color: var(--muted); font-size: 8px; letter-spacing: .04em; }
.product-size strong { margin-top: 4px; font-family: var(--display); font-size: 21px; letter-spacing: -.02em; }
.catalog-actions { width: 100%; margin-top: auto; gap: 8px; }
.catalog-actions .btn { flex: 1; padding-inline: 12px; }
.more-catalog { margin-top: 72px; }
.more-catalog-head { margin-bottom: 22px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.more-catalog-head h3 { font-size: 32px; font-weight: 800; text-transform: none; }
.more-catalog-grid { gap: 1px; border: 1px solid var(--line); background: var(--line); }
.more-catalog-card { border: 0; background: #fff; }

/* Technical evidence */
.performance { padding: 124px 0; background: #fff; }
.performance-grid { gap: 90px; }
.performance-copy h2 { font-size: clamp(46px, 5.5vw, 80px); }
.performance-copy p { margin-top: 26px; font-size: 16px; }
.test-panel {
  position: relative;
  padding: 36px;
  border: 0;
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow);
}
.test-panel::before {
  content: "VERIFIED / SGS";
  position: absolute;
  top: 18px;
  right: 18px;
  color: rgba(255,255,255,.48);
  font-size: 8px;
  letter-spacing: .08em;
}
.test-number strong { color: #fff; font-family: var(--display); letter-spacing: -.025em; }
.test-number span { color: #9db0b8; }

.technology { padding: 132px 0; background: var(--mist-blue); }
.technology-grid { gap: 80px; }
.product-stage {
  min-height: 650px;
  border: 0;
  border-radius: var(--media-radius);
  background: #fff;
  box-shadow: 0 24px 60px rgba(26, 57, 67, .12);
}
.product-stage::before { background: radial-gradient(circle, rgba(0,127,155,.11), transparent 68%); }
.product-stage img { filter: saturate(.92) drop-shadow(0 20px 24px rgba(30,58,68,.16)); }
.tech-copy h2 { margin-top: 12px; }
.feature-list { margin-top: 42px; }
.feature { padding: 24px 0; border-top: 1px solid #b9cdd2; }
.feature:last-child { border-bottom: 1px solid #b9cdd2; }
.feature h3 { font-size: 17px; }
.feature p { color: #536870; }
.tech-label { border-radius: var(--radius); box-shadow: 0 12px 28px rgba(18,48,57,.12); }

/* Phase colors become the visual system, not decoration. */
.phase-visibility { padding: 126px 0; background: var(--ink); }
.phase-visibility::before {
  opacity: .55;
  background-image: linear-gradient(90deg, transparent 0 24%, rgba(255,255,255,.04) 24% 24.08%, transparent 24.08% 100%);
  background-size: 25% 100%;
}
.phase-grid { gap: 100px; }
.phase-panel { padding: 0; border: 0; background: transparent; }
.phase-panel h2 { color: #fff; }
.phase-panel > p { color: #9dafb6; }
.phase-row { padding: 22px 0; border-top: 1px solid rgba(255,255,255,.18); }
.phase-row:last-child { border-bottom: 1px solid rgba(255,255,255,.18); }
.swatch { height: 9px; border-radius: 1px; box-shadow: none; }

.application { background: var(--ink); }
.application-wrap { min-height: 780px; }
.application-wrap::after {
  background: linear-gradient(90deg, rgba(7,20,26,.97) 0%, rgba(7,20,26,.78) 42%, rgba(7,20,26,.12) 75%);
}
.application-content { padding: 122px 0; }
.application-content h2 { max-width: 860px; font-size: clamp(48px, 6vw, 88px); }
.application-points { margin-top: 68px; gap: 0; border-top: 1px solid rgba(255,255,255,.28); }
.application-point { padding: 25px 32px 0 0; border-right: 1px solid rgba(255,255,255,.18); }
.application-point:last-child { border-right: 0; padding-left: 32px; }
.application-point p { color: rgba(255,255,255,.7); }

/* Wildlife and resources */
.solutions { padding: 120px 0; background: #fff; }
.solution-grid { margin-top: 56px; grid-template-columns: 1.15fr .85fr .85fr; border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.solution-card { min-height: 330px; padding: 35px 30px; border-right: 1px solid var(--line); background: transparent; }
.solution-card:first-child { padding-left: 0; }
.solution-card:last-child { padding-right: 0; border-right: 0; }
.solution-card:hover { background: var(--mist); }
.solution-icon { color: var(--brand); font-family: var(--display); font-size: 38px; }
.solution-card h3 { font-size: 23px; }
.solution-card p { color: var(--muted); }
.regional-solution {
  margin-top: 50px;
  padding: 30px 34px;
  border: 0;
  background: var(--mist-blue);
}
.regional-voltage { color: var(--brand); font-family: var(--display); font-size: 50px; line-height: .82; }

.resource-hub { padding: 74px 0; border-color: var(--line); background: var(--mist); }
.resource-hub-grid { gap: 90px; }
.resource-hub h2 { font-size: 42px; font-weight: 800; text-transform: none; }
.resource-links { border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.resource-link { min-height: 118px; border-color: var(--line); background: transparent; }
.resource-link:hover { color: var(--brand-dark); background: #fff; }

/* Factory mosaic */
#manufacturing { padding: 122px 0; background: #fff; }
.factory-intro { margin-bottom: 50px; }
.factory-showcase { gap: 8px; grid-auto-rows: 190px; }
.factory-photo { border-radius: var(--media-radius); }
.factory-photo img { filter: saturate(.82) contrast(1.03); }
.factory-photo:hover img { transform: scale(1.025); filter: saturate(1); }
.factory-photo figcaption { padding: 52px 18px 16px; font-size: 10px; letter-spacing: .02em; }

/* Motion journal: one intentional dark passage. */
.factory-video-journal { padding: 124px 0; background: #08171d; }
.factory-video-journal::before {
  right: -2vw;
  top: 48px;
  color: rgba(255,255,255,.026);
  font-family: var(--display);
  font-size: 20vw;
  font-weight: 900;
  letter-spacing: -.05em;
}
.video-journal-head {
  grid-template-columns: 1fr;
  gap: 22px;
}
.video-journal-head h2 { font-size: clamp(48px, 6vw, 88px); font-weight: 800; text-transform: none; }
.video-journal-head p { max-width: 760px; }
.video-feature, .video-entry { border: 1px solid rgba(255,255,255,.17); border-radius: var(--media-radius); }
.video-feature::after, .video-entry::after { background: linear-gradient(180deg, transparent 32%, rgba(4,13,17,.9)); }
.video-play-mark { border-color: rgba(255,255,255,.8); background: rgba(5,20,26,.26); backdrop-filter: blur(8px); }
.social-channel-panel { border-radius: var(--media-radius); background: #fff; color: var(--ink); }
.social-channel { border-color: var(--line); }

.installation-demo { padding: 124px 0; background: var(--mist); }
.installation-demo-grid { gap: 10px; }
.installation-video { border: 0; border-radius: var(--media-radius); background: #dfe8eb; }
.installation-video::after { background: linear-gradient(180deg, rgba(5,16,21,.02) 34%, rgba(5,16,21,.86)); }
.installation-format { border: 0; border-radius: var(--radius); background: rgba(6,22,28,.62); }
.installation-video video { width: 100%; height: 100%; display: block; object-fit: cover; background: #0c1b21; }
.installation-video.has-video::after { pointer-events: none; transition: opacity .3s ease; }
.installation-video.has-video .installation-video-copy,
.installation-video.has-video .installation-format { pointer-events: none; transition: opacity .3s ease, transform .3s ease; }
.installation-video.has-video .installation-video-copy { padding-bottom: 62px; }
.installation-video.has-video.is-playing::after,
.installation-video.has-video.is-playing .installation-video-copy,
.installation-video.has-video.is-playing .installation-format { opacity: 0; }
.installation-video.has-video.is-playing .installation-video-copy { transform: translateY(8px); }

/* Credential library */
.quality-library { padding: 124px 0; background: #fff; }
.credential-head { grid-template-columns: 1fr; gap: 22px; }
.credential-head h2 { max-width: 980px; font-size: clamp(48px, 5.8vw, 84px); font-weight: 800; text-transform: none; }
.credential-head p { max-width: 760px; }
.credential-tabs { margin: 44px 0 24px; gap: 0; border-bottom: 1px solid var(--line); }
.credential-tab {
  min-height: 46px;
  padding: 0 18px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
}
.credential-tab.active { border-color: var(--brand); color: var(--brand-dark); background: transparent; }
.credential-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.credential-item { border: 0; background: #fff; }
.credential-item img { background: #f8faf9; }
.credential-item figcaption { min-height: 82px; padding: 15px; }
.report-card { min-height: 350px; padding: 28px; border-top: 0; }
.library-summary span { border-radius: var(--radius); }

/* FAQ is a technical index, not another card wall. */
#faq { padding: 120px 0; background: var(--mist-blue); }
#faq .container > .reveal { max-width: 860px; }
.faq-grid { margin-top: 50px; gap: 0; border-top: 1px solid #b5c9ce; }
.faq-item { padding: 26px 0; border: 0; border-bottom: 1px solid #b5c9ce; background: transparent; }
.faq-item h3 { font-size: 18px; }
.faq-item p { color: #50656d; }

/* Conversion close */
.custom-request { padding: 128px 0; background: var(--ink); }
.request-grid { grid-template-columns: .72fr 1.28fr; gap: 100px; }
.request-copy .kicker { color: #6fd5e8; }
.request-copy h2 { color: #fff; font-size: clamp(46px, 5.5vw, 78px); }
.request-copy > p { color: #a4b6bd; }
.request-steps { border-color: rgba(255,255,255,.18); }
.request-step { border-color: rgba(255,255,255,.14); }
.request-step span { color: #70d7e8; }
.request-form {
  padding: 42px;
  border-top: 0;
  border-radius: var(--media-radius);
  background: #fff;
  box-shadow: 0 28px 70px rgba(0,0,0,.22);
}
.request-form h3 { font-family: var(--display); font-size: 30px; letter-spacing: -.02em; }
.field input, .field select, .field textarea {
  min-height: 50px;
  border: 1px solid #9dafb6;
  border-radius: var(--radius);
  color: var(--ink);
  background: #fff;
}
.field input::placeholder, .field textarea::placeholder { color: #687980; opacity: 1; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(0,127,155,.12); }
.upload-zone { border-color: #8aa0a8; border-radius: var(--radius); background: var(--mist); }
.upload-zone:hover, .upload-zone.dragging { border-color: var(--brand); background: var(--mist-blue); }
.form-submit { min-height: 52px; border: 0; background: var(--brand); color: #fff; }

footer { padding: 86px 0 30px; background: #041015; }
.footer-grid { gap: 58px; }
.footer-brand { font-size: clamp(54px, 6vw, 88px); font-weight: 900; letter-spacing: -.04em; }
.footer-about { color: #92a6ad; }
footer h3 { color: #fff; font-size: 11px; letter-spacing: .04em; text-transform: uppercase; }
.footer-links { color: #9aabb1; }
.footer-links a:hover { color: #fff; }
.footer-social a { border-radius: var(--radius); }
.floating-whatsapp { right: 20px; bottom: 20px; min-height: 48px; border-radius: var(--radius); box-shadow: 0 14px 36px rgba(17,67,48,.18); }
.cursor-ring { border-color: rgba(0,127,155,.6); }

/* Purposeful motion: images reveal as material planes; text remains readable by default. */
.motion-item { transform: translateY(26px); transition-duration: .82s; transition-timing-function: var(--ease-out); }
.catalog-item.motion-item { transform: translateY(32px); }
.factory-photo.motion-item { clip-path: inset(8% 0 0 0); filter: blur(2px); }
.factory-photo.motion-item.in-view { clip-path: inset(0); filter: blur(0); }
.catalog-media::after { background: var(--mist-blue); transition-duration: .9s; transition-timing-function: var(--ease-out); }

@media (max-width: 1240px) {
  .container { width: min(1180px, calc(100% - 56px)); }
  .brand { min-width: 190px; font-size: 38px; }
  .brand::after { display: none; }
  .nav-links { gap: 18px; }
  .language-list { display: none; }
  .hero-copy { width: 52%; }
  .hero-shade { background: linear-gradient(90deg, rgba(247,250,250,.99) 0%, rgba(247,250,250,.92) 35%, rgba(247,250,250,.42) 53%, rgba(7,20,26,.08) 100%); }
  .catalog-item { grid-template-columns: 1fr; }
  .catalog-media { min-height: 300px; }
  .catalog-copy { border-left: 0; border-top: 1px solid var(--soft-line); }
  .credential-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px) {
  .container { width: min(900px, calc(100% - 40px)); }
  section { padding: 92px 0; }
  .nav-links { gap: 14px; }
  .nav-links a:nth-child(3), .nav-links a:nth-child(5) { display: none; }
  .btn-whatsapp { display: none; }
  .hero { min-height: 820px; }
  .hero-inner { min-height: 748px; }
  .hero-copy { width: 62%; }
  .hero-proof { background: rgba(255,255,255,.78); }
  .flow-grid { grid-template-columns: repeat(5, 1fr); }
  .catalog-grid { grid-template-columns: 1fr 1fr; }
  .performance-grid, .technology-grid, .phase-grid, .request-grid { grid-template-columns: 1fr; gap: 58px; }
  .product-stage { min-height: 540px; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card, .solution-card:first-child, .solution-card:last-child { min-height: 0; padding: 30px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .solution-card:last-child { border-bottom: 0; }
  .request-copy { position: static; }
  .credential-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 760px) {
  body { padding-bottom: 56px; }
  .container { width: calc(100% - 28px); }
  section { padding: 76px 0; }
  .topbar { height: 64px; }
  .nav { gap: 10px; }
  .brand { min-width: 0; height: 64px; font-size: 34px; }
  .nav-links {
    top: 64px;
    padding: 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(255,255,255,.98);
  }
  .nav-links a, .nav-links a:nth-child(3), .nav-links a:nth-child(5) { display: block; padding: 14px 8px; border-bottom: 1px solid var(--soft-line); }
  .nav-links a::after { display: none; }
  .nav-tools > .btn-primary { min-height: 40px; padding-inline: 13px; font-size: 9px; }
  .menu-toggle { display: block; width: 40px; height: 40px; }
  .hero {
    min-height: 820px;
    padding-top: 64px;
    display: flex;
    align-items: flex-end;
    background: #dfeaec;
  }
  .hero-background { inset: 64px 0 0; height: 47%; object-position: 56% center; }
  .hero-shade {
    inset: 64px 0 0;
    background: linear-gradient(0deg, #f7fafa 0%, #f7fafa 52%, rgba(247,250,250,.08) 76%, rgba(7,20,26,.06) 100%);
  }
  .hero::before { top: 420px; left: 14px; height: 50px; }
  .hero-inner { min-height: 756px; align-items: flex-end; padding: 352px 0 54px; }
  .hero-copy { width: 100%; }
  .hero-copy::before { margin: 0 0 13px 12px; font-size: 8px; }
  h1 { max-width: 580px; font-size: clamp(44px, 13vw, 66px); line-height: .92; }
  .hero-text { margin-top: 18px; font-size: 14px; }
  .hero-actions { margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; }
  .hero-actions .btn { min-height: 46px; padding-inline: 10px; font-size: 9px; }
  .hero-proof { margin-top: 19px; padding: 13px 0; backdrop-filter: none; background: transparent; }
  .hero-proof img { display: none; }
  .hero-test-grid { gap: 10px; }
  .hero-test-grid strong { font-size: 21px; }
  .hero-test-grid span { font-size: 7px; }
  .hero-brand-mark { display: none; }
  .engineering-flow { padding: 48px 0; }
  .engineering-flow::before { display: none; }
  .flow-grid { grid-template-columns: 1fr 1fr; border-bottom: 0; }
  .flow-step, .flow-step:first-child, .flow-step:last-child { padding: 15px 10px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .flow-step:nth-child(2n) { border-right: 0; }
  .flow-step:last-child { grid-column: 1 / -1; border-right: 0; }
  .phase-specs { grid-template-columns: 1fr; }
  .product-catalog { padding: 82px 0; }
  .product-catalog::before { top: 22px; left: 14px; }
  .section-head { margin-bottom: 36px; align-items: flex-start; }
  h2, .video-journal-head h2, .credential-head h2 { font-size: clamp(38px, 11vw, 56px); }
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-item { min-height: 0; }
  .catalog-media { min-height: 270px; }
  .catalog-copy { padding: 25px 20px; }
  .more-catalog-head { align-items: flex-start; }
  .performance { padding: 84px 0; }
  .performance-copy h2 { font-size: clamp(42px, 12vw, 60px); }
  .test-panel { padding: 28px 20px; }
  .technology { padding: 84px 0; }
  .product-stage { min-height: 390px; }
  .phase-visibility { padding: 84px 0; }
  .application-wrap { min-height: 720px; }
  .application-wrap::after { background: linear-gradient(0deg, rgba(7,20,26,.97) 0%, rgba(7,20,26,.77) 66%, rgba(7,20,26,.18)); }
  .application-content { padding: 82px 0; }
  .application-content h2 { font-size: clamp(42px, 12vw, 62px); }
  .application-points { grid-template-columns: 1fr; margin-top: 46px; }
  .application-point, .application-point:last-child { padding: 19px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .regional-solution { grid-template-columns: 1fr; padding: 24px 20px; }
  .resource-hub-grid { gap: 36px; }
  .resource-links { grid-template-columns: 1fr 1fr; }
  .factory-showcase { grid-template-columns: 1fr 1fr; grid-auto-rows: 170px; }
  .factory-photo:nth-child(n) { grid-column: span 1; grid-row: span 1; }
  .factory-photo:nth-child(1) { grid-column: 1 / -1; grid-row: span 2; }
  .video-journal-head { grid-template-columns: 1fr; gap: 24px; }
  .installation-demo-grid { grid-template-columns: 1fr; }
  .credential-grid { grid-template-columns: 1fr 1fr; }
  .credential-tab { flex: 1 1 50%; padding-inline: 8px; }
  .request-form { padding: 28px 18px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .floating-whatsapp { display: none; }
}

@media (max-width: 460px) {
  .nav-tools > .btn-primary { max-width: 118px; }
  .hero { min-height: 790px; }
  .hero-inner { min-height: 726px; }
  .hero-actions { grid-template-columns: 1fr; }
  .hero-test-grid span { max-width: 88px; }
  .catalog-media { min-height: 235px; }
  .catalog-actions { display: grid; grid-template-columns: 1fr; }
  .resource-links, .credential-grid { grid-template-columns: 1fr; }
  .factory-showcase { grid-template-columns: 1fr; }
  .factory-photo:nth-child(n) { grid-column: 1; }
  .installation-portrait-grid { gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .factory-photo.motion-item { clip-path: none; filter: none; }
}

/* Static commerce preview: product, cart and checkout surfaces. */
[hidden] { display: none !important; }
body.commerce-open { overflow: hidden; }
.commerce-cart-trigger {
  min-width: 66px;
  height: 44px;
  padding: 0 10px 0 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid #8aa0a8;
  border-radius: var(--radius);
  color: var(--graphite);
  background: #fff;
  font-size: 10px;
  font-weight: 800;
  cursor: pointer;
}
.commerce-cart-trigger:hover { border-color: var(--brand); color: var(--brand-dark); }
.commerce-cart-trigger b,
.mobile-cart-trigger b {
  min-width: 19px;
  height: 19px;
  padding: 0 5px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--brand);
  font-size: 9px;
}
.commerce-overlay {
  position: fixed;
  z-index: 120;
  inset: 0;
  padding: 24px;
  display: grid;
  place-items: center;
  overflow-y: auto;
  background: rgba(3, 14, 19, .68);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: commerce-fade .28s ease both;
}
.commerce-dialog {
  position: relative;
  width: min(1180px, 100%);
  max-height: calc(100dvh - 48px);
  overflow: auto;
  border-radius: var(--media-radius);
  background: #fff;
  box-shadow: 0 36px 90px rgba(0, 0, 0, .28);
  animation: commerce-rise .5s var(--ease-out) both;
}
.commerce-close {
  position: absolute;
  z-index: 5;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(7, 20, 26, .22);
  border-radius: var(--radius);
  color: var(--ink);
  background: rgba(255,255,255,.92);
  font-size: 25px;
  line-height: 1;
  cursor: pointer;
}
.commerce-close:hover { border-color: var(--brand); color: var(--brand); }
.commerce-path {
  margin: 0 0 14px;
  color: var(--brand-dark);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.product-detail-dialog { display: grid; grid-template-columns: 1.08fr .92fr; }
.product-detail-media {
  min-height: 680px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--mist);
}
.product-detail-media img { width: 100%; height: 100%; object-fit: contain; }
.product-detail-content { padding: 70px 64px 56px; }
.product-detail-content h2,
.checkout-main h2,
.cart-drawer h2,
.order-success-dialog h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: -.035em;
}
.product-detail-content h2 { font-size: clamp(38px, 4.2vw, 62px); line-height: .98; }
.product-detail-cn { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.product-detail-facts {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.product-detail-facts > div { padding: 18px 12px 18px 0; border-right: 1px solid var(--line); }
.product-detail-facts > div:not(:first-child) { padding-left: 14px; }
.product-detail-facts > div:last-child { border-right: 0; }
.product-detail-facts span,
.preview-price span,
.product-option-group label {
  display: block;
  color: var(--muted);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.product-detail-facts strong { display: block; margin-top: 7px; font-size: 12px; line-height: 1.35; }
.preview-price { margin-top: 26px; padding: 20px; background: var(--mist-blue); }
.preview-price strong { display: block; margin-top: 4px; font-family: var(--display); font-size: 34px; letter-spacing: -.02em; }
.preview-price small { display: block; margin-top: 3px; color: #52676f; font-size: 10px; line-height: 1.45; }
.product-option-group { margin-top: 24px; }
.product-option-group select {
  width: 100%;
  height: 48px;
  margin-top: 8px;
  padding: 0 12px;
  border: 1px solid #8da1a9;
  border-radius: var(--radius);
  color: var(--ink);
  background: #fff;
}
.product-purchase-row { margin-top: 20px; display: grid; grid-template-columns: 134px 1fr; gap: 10px; }
.quantity-stepper { height: 50px; display: grid; grid-template-columns: 40px 1fr 40px; border: 1px solid #8da1a9; border-radius: var(--radius); }
.quantity-stepper button { border: 0; color: var(--ink); background: transparent; font-size: 19px; cursor: pointer; }
.quantity-stepper input { min-width: 0; border: 0; border-right: 1px solid var(--line); border-left: 1px solid var(--line); text-align: center; font-weight: 800; }
.product-add-cart { min-height: 50px; }
.product-custom-link { margin-top: 20px; padding: 0; border: 0; color: var(--brand-dark); background: transparent; font-size: 11px; font-weight: 700; text-align: left; cursor: pointer; }
.product-custom-link:hover { text-decoration: underline; }

.commerce-drawer-overlay { place-items: stretch end; padding: 0; background: rgba(3,14,19,.46); }
.cart-drawer {
  width: min(520px, 100%);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: auto;
  background: #fff;
  box-shadow: -28px 0 70px rgba(0,0,0,.2);
  animation: cart-enter .5s var(--ease-out) both;
}
.cart-drawer-head { padding: 34px 72px 24px 30px; border-bottom: 1px solid var(--line); }
.cart-drawer-head span { color: var(--brand-dark); font-size: 9px; font-weight: 800; text-transform: uppercase; }
.cart-drawer h2 { margin-top: 4px; font-size: 42px; }
.cart-items { padding: 0 30px; }
.cart-item { padding: 24px 0; display: grid; grid-template-columns: 96px 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.cart-item img { width: 96px; height: 96px; object-fit: contain; background: var(--mist); }
.cart-item h3 { margin: 0; font-size: 14px; line-height: 1.3; }
.cart-item p { margin: 6px 0 0; color: var(--muted); font-size: 10px; }
.cart-item-actions { margin-top: 13px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.cart-item-stepper { display: flex; align-items: center; border: 1px solid var(--line); }
.cart-item-stepper button { width: 30px; height: 30px; border: 0; background: transparent; cursor: pointer; }
.cart-item-stepper span { min-width: 32px; text-align: center; font-size: 11px; font-weight: 800; }
.cart-remove { padding: 4px 0; border: 0; color: #7b3232; background: transparent; font-size: 10px; cursor: pointer; }
.cart-empty { margin: auto; padding: 48px 30px; text-align: center; }
.cart-empty strong { font-family: var(--display); font-size: 30px; }
.cart-empty p { margin: 8px auto 24px; color: var(--muted); font-size: 13px; }
.cart-summary { margin-top: auto; padding: 26px 30px 32px; border-top: 1px solid var(--line); background: var(--mist); }
.cart-summary > div { padding: 8px 0; display: flex; justify-content: space-between; gap: 20px; font-size: 12px; }
.cart-summary > div strong { text-align: right; }
.cart-summary p { color: var(--muted); font-size: 10px; line-height: 1.5; }
.cart-checkout-button { width: 100%; margin-top: 16px; min-height: 52px; }

.checkout-dialog { display: grid; grid-template-columns: minmax(0, 1fr) 340px; }
.checkout-main { padding: 56px 60px 60px; }
.checkout-main h2 { font-size: clamp(45px, 5vw, 72px); }
.checkout-progress { margin: 0 52px 42px 0; display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); }
.checkout-progress span { padding: 0 0 12px; color: #89999f; font-size: 9px; font-weight: 800; }
.checkout-progress span.active { color: var(--brand-dark); border-bottom: 2px solid var(--brand); }
#previewCheckoutForm { margin-top: 34px; }
#previewCheckoutForm fieldset { margin: 0; padding: 28px 0; border: 0; border-top: 1px solid var(--line); }
#previewCheckoutForm legend { padding: 0 18px 0 0; font-size: 15px; font-weight: 800; }
.checkout-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.checkout-fields label span { display: block; margin-bottom: 7px; color: var(--graphite); font-size: 10px; font-weight: 700; }
.checkout-fields input {
  width: 100%;
  height: 48px;
  padding: 0 12px;
  border: 1px solid #8da1a9;
  border-radius: var(--radius);
  color: var(--ink);
  background: #fff;
}
.checkout-field-wide { grid-column: 1 / -1; }
.payment-methods { display: grid; gap: 8px; }
.payment-methods label { padding: 14px; display: flex; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius); cursor: pointer; }
.payment-methods label:has(input:checked) { border-color: var(--brand); background: var(--mist-blue); }
.payment-methods input { margin-top: 3px; accent-color: var(--brand); }
.payment-methods strong, .payment-methods small { display: block; }
.payment-methods strong { font-size: 12px; }
.payment-methods small { margin-top: 3px; color: var(--muted); font-size: 9px; line-height: 1.4; }
.checkout-consent { margin-top: 22px; display: flex; align-items: flex-start; gap: 10px; color: #53676e; font-size: 10px; line-height: 1.5; }
.checkout-consent input { margin-top: 2px; accent-color: var(--brand); }
.checkout-submit { width: 100%; min-height: 52px; margin-top: 18px; }
.checkout-status { min-height: 18px; margin: 10px 0 0; color: #9c2f2f; font-size: 10px; }
.checkout-summary { padding: 108px 28px 34px; background: var(--mist); }
.checkout-summary > span { color: var(--brand-dark); font-size: 9px; font-weight: 800; text-transform: uppercase; }
.checkout-summary-item { padding: 17px 0; display: grid; grid-template-columns: 62px 1fr; gap: 12px; border-bottom: 1px solid var(--line); }
.checkout-summary-item img { width: 62px; height: 62px; object-fit: contain; background: #fff; }
.checkout-summary-item strong { display: block; font-size: 10px; line-height: 1.35; }
.checkout-summary-item small { display: block; margin-top: 5px; color: var(--muted); font-size: 8px; }
.checkout-total { margin-top: 24px; padding-top: 18px; display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--ink); }
.checkout-total span { font-size: 11px; }
.checkout-total strong { max-width: 170px; font-size: 11px; text-align: right; }
.checkout-summary > p { color: var(--muted); font-size: 9px; }

.order-success-dialog { width: min(680px, 100%); padding: 66px; text-align: center; }
.order-success-mark { width: 70px; height: 70px; margin: 0 auto 24px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 30px; }
.order-success-dialog h2 { font-size: clamp(42px, 6vw, 68px); line-height: 1; }
.order-success-dialog > p:not(.commerce-path) { margin: 18px auto 0; color: var(--muted); }
.order-success-actions { margin-top: 30px; display: flex; justify-content: center; gap: 9px; }

.mobile-cart-trigger { border: 0; color: var(--brand-dark); background: #fff; font-size: 10px; font-weight: 900; text-transform: uppercase; }
.mobile-contact-dock { grid-template-columns: 1fr 1fr 1.2fr; }

@keyframes commerce-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes commerce-rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes cart-enter { from { transform: translateX(100%); } to { transform: translateX(0); } }

@media (max-width: 980px) {
  .commerce-cart-trigger { display: none; }
  .product-detail-dialog { grid-template-columns: 1fr; }
  .product-detail-media { min-height: 420px; max-height: 48dvh; }
  .product-detail-content { padding: 44px 34px; }
  .checkout-dialog { grid-template-columns: 1fr; }
  .checkout-summary { padding: 30px 34px; }
}

@media (max-width: 760px) {
  .commerce-overlay { padding: 0; place-items: stretch; }
  .commerce-dialog { width: 100%; max-height: 100dvh; min-height: 100dvh; border-radius: 0; }
  .commerce-close { position: fixed; top: 12px; right: 12px; }
  .product-detail-media { min-height: 310px; max-height: 38dvh; }
  .product-detail-content { padding: 34px 18px 40px; }
  .product-detail-content h2 { font-size: 38px; }
  .product-detail-facts { grid-template-columns: 1fr 1fr; }
  .product-detail-facts > div { border-bottom: 1px solid var(--line); }
  .product-detail-facts > div:nth-child(2) { border-right: 0; }
  .product-detail-facts > div:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .product-purchase-row { grid-template-columns: 120px 1fr; }
  .cart-drawer { width: 100%; }
  .cart-drawer-head { padding: 28px 64px 20px 20px; }
  .cart-items, .cart-summary { padding-right: 20px; padding-left: 20px; }
  .checkout-main { padding: 70px 18px 34px; }
  .checkout-progress { margin-right: 48px; }
  .checkout-fields { grid-template-columns: 1fr; }
  .checkout-field-wide { grid-column: auto; }
  .checkout-summary { padding: 30px 18px 86px; }
  .order-success-dialog { padding: 74px 22px 40px; }
  .order-success-actions { flex-direction: column; }
}

@media (max-width: 420px) {
  .product-purchase-row { grid-template-columns: 1fr; }
  .quantity-stepper { width: 134px; }
  .product-detail-facts { grid-template-columns: 1fr; }
  .product-detail-facts > div,
  .product-detail-facts > div:nth-child(2),
  .product-detail-facts > div:last-child { grid-column: auto; padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .product-detail-facts > div:last-child { border-bottom: 0; }
}