:root {
  color-scheme: light dark;
  --bg: #f4f6f7;
  --surface: #e8edef;
  --surface-strong: #d9e2e6;
  --ink: #1a2e3a;
  --muted: #60727c;
  --line: #c7d1d6;
  --accent: #4b7188;
  --accent-ink: #f8fbfc;
  --header: rgb(244 246 247 / .9);
  --radius: 14px;
  --page: min(1440px, calc(100% - 64px));
  --font: "Aptos", "Segoe UI Variable", "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111a20;
    --surface: #19262e;
    --surface-strong: #22333e;
    --ink: #eef3f5;
    --muted: #a8b7c0;
    --line: #394a54;
    --accent: #8aaabd;
    --accent-ink: #0d1b23;
    --header: rgb(17 26 32 / .9);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
img { display: block; width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 72px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 34px;
  width: 100%;
  padding: 0 max(24px, calc((100vw - 1440px) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--header);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: .12em; white-space: nowrap; }
.brand-mark { display: block; width: 35px; height: 42px; flex: 0 0 35px; overflow: hidden; border: 0; border-radius: 0; background: transparent url("assets/images/brand/rsd-acoustics-logo-transparent.png") center / contain no-repeat; color: transparent; font-size: 0; }
.nav { justify-self: center; display: flex; align-items: center; gap: clamp(18px, 2.2vw, 36px); font-size: 13px; }
.nav a { white-space: nowrap; transition: color .2s ease; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent); }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 12px; }
.header-social, .nav-social { display: flex; align-items: center; gap: 5px; }
.nav-social { display: none; }
.social-icon-link {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 50%;
  color: var(--muted);
  transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease;
}
.social-icon-link:hover { border-color: var(--line); background: var(--surface); color: var(--accent); transform: translateY(-1px); }
.social-icon-link:active { transform: translateY(1px); }
.social-logo {
  display: block;
  width: 15px;
  height: 15px;
  background: currentColor;
  -webkit-mask: center / contain no-repeat;
  mask: center / contain no-repeat;
}
.social-icon-linkedin .social-logo { -webkit-mask-image: url("assets/images/social-linkedin.svg"); mask-image: url("assets/images/social-linkedin.svg"); }
.social-icon-instagram .social-logo { -webkit-mask-image: url("assets/images/social-instagram.svg"); mask-image: url("assets/images/social-instagram.svg"); }
.social-icon-facebook .social-logo { -webkit-mask-image: url("assets/images/social-facebook.svg"); mask-image: url("assets/images/social-facebook.svg"); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 11px; border: 1px solid var(--line); border-radius: 50%; background: transparent; }
.menu-toggle span { display: block; height: 1px; margin: 5px 0; background: currentColor; }

.button, .text-link, .filter-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  transition: transform .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.button { min-height: 46px; gap: 18px; padding: 11px 18px; border: 1px solid var(--ink); border-radius: 999px; font-size: 13px; font-weight: 650; }
.button:hover { transform: translateY(-2px); }
.button:active, .filter-button:active { transform: translateY(1px); }
.button-primary { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
.button-secondary { background: var(--bg); }
.text-link { gap: 14px; padding-bottom: 4px; border-bottom: 1px solid currentColor; font-size: 13px; font-weight: 650; }
.arrow { font-size: 18px; line-height: 1; }

.container { width: var(--page); margin-inline: auto; }
.section { width: var(--page); margin-inline: auto; padding-block: clamp(80px, 9vw, 140px); }
.section-tight { padding-block: clamp(54px, 6vw, 88px); }
.eyebrow { margin-bottom: 20px; color: var(--accent); font-size: 11px; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
.display { font-size: clamp(46px, 7.2vw, 108px); font-weight: 520; letter-spacing: -.065em; line-height: .94; }
.section-title { max-width: 850px; margin-bottom: 24px; font-size: clamp(38px, 5vw, 74px); font-weight: 520; letter-spacing: -.055em; line-height: .98; }
.section-copy { max-width: 660px; color: var(--muted); font-size: clamp(17px, 1.45vw, 21px); }

.hero {
  width: var(--page);
  min-height: calc(100dvh - 72px);
  margin-inline: auto;
  padding-block: clamp(42px, 6vh, 74px);
  display: grid;
  grid-template-columns: minmax(0, .83fr) minmax(420px, 1.17fr);
  align-items: center;
  gap: clamp(34px, 6vw, 96px);
}
.hero-copy { position: relative; z-index: 2; }
.hero-copy h1 { max-width: 720px; margin-bottom: 25px; }
.hero-copy > p:not(.eyebrow) { max-width: 510px; margin-bottom: 30px; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.home-hero { padding-block: clamp(32px, 4vh, 54px); }
.home-hero .display { max-width: 610px; font-size: clamp(46px, 4.7vw, 72px); }
.home-hero-visual { min-width: 0; margin: 0; }
.hero-visual-frame { position: relative; height: min(68vh, 680px); min-height: 500px; overflow: hidden; border-radius: var(--radius); background: var(--surface); }
.hero-visual-frame img { height: 100%; object-fit: cover; }
.hero-visual-frame::after { content: ""; position: absolute; inset: 0; border: 1px solid rgb(255 255 255 / .18); border-radius: inherit; pointer-events: none; }
.home-hero-visual figcaption { padding-top: 10px; color: var(--muted); font-size: 11px; }

.home-role-strip { width: var(--page); margin-inline: auto; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.home-role-strip div { min-height: 112px; padding: 24px 28px 24px 0; display: flex; flex-direction: column; justify-content: space-between; }
.home-role-strip div + div { padding-left: 28px; border-left: 1px solid var(--line); }
.home-role-strip span { color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.home-role-strip strong { max-width: 310px; font-size: clamp(16px, 1.4vw, 20px); font-weight: 570; line-height: 1.25; }

.home-browser { scroll-margin-top: 88px; display: grid; grid-template-columns: minmax(260px, .68fr) minmax(0, 1.32fr); gap: clamp(44px, 8vw, 120px); align-items: start; }
.home-browser-intro { position: sticky; top: 116px; }
.home-browser-intro .section-copy { margin-bottom: 28px; }
.home-browser-workspace { min-width: 0; padding: clamp(24px, 3vw, 40px); border-radius: var(--radius); background: var(--surface); }
.home-browser-tabs { display: flex; gap: clamp(20px, 3vw, 42px); padding-bottom: 18px; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.home-browser-tabs::-webkit-scrollbar { display: none; }
.home-browser-tabs button { flex: 0 0 auto; padding: 0 0 8px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 14px; font-weight: 650; cursor: pointer; }
.home-browser-tabs button[aria-pressed="true"] { border-bottom-color: var(--accent); color: var(--ink); }
.home-browser-tabs button:active { transform: translateY(1px); }
.home-browser-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 30px; }
.home-browser-panel[hidden] { display: none; }
.home-browser-panel a { min-width: 0; min-height: 112px; padding: 22px 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: auto auto; gap: 5px 18px; align-content: center; border-bottom: 1px solid var(--line); }
.home-browser-panel a > span:first-child { font-size: clamp(18px, 1.7vw, 25px); font-weight: 580; letter-spacing: -.025em; }
.home-browser-panel a > span:last-child { grid-column: 2; grid-row: 1 / 3; align-self: center; color: var(--accent); font-size: 20px; transition: transform .2s ease; }
.home-browser-panel a:hover > span:last-child { transform: translateX(4px); }
.home-browser-panel small { color: var(--muted); font-size: 12px; line-height: 1.45; }

.catalog-preview { background: var(--surface); }
.catalog-preview-inner { width: var(--page); margin-inline: auto; padding-block: clamp(80px, 9vw, 140px); }
.section-head { margin-bottom: 46px; }
.home-feature-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 42px 14px; }
.home-feature-card { grid-column: span 7; min-width: 0; }
.home-feature-card:nth-child(2), .home-feature-card:nth-child(3) { grid-column: span 5; }
.home-feature-media { aspect-ratio: 16 / 10; overflow: hidden; border-radius: var(--radius); background: var(--surface-strong); }
.home-feature-card:nth-child(2) .home-feature-media, .home-feature-card:nth-child(3) .home-feature-media { aspect-ratio: 4 / 3; }
.home-feature-media img { height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.16,1,.3,1); }
.home-feature-card:hover .home-feature-media img { transform: scale(1.025); }
.home-feature-copy { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; padding-top: 16px; }
.home-feature-copy h3 { margin-bottom: 5px; font-size: clamp(20px, 1.8vw, 27px); font-weight: 610; letter-spacing: -.025em; }
.home-feature-copy p { margin-bottom: 0; color: var(--muted); font-size: 12px; }
.home-feature-copy .arrow { color: var(--accent); }
.home-featured-action { margin-top: 42px; }
.product-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 34px 14px; }
.product-card { grid-column: span 4; min-width: 0; }
.product-card:nth-child(1), .product-card:nth-child(15) { grid-column: span 8; }
.product-card-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); background: var(--surface-strong); }
.product-card:nth-child(1) .product-card-media, .product-card:nth-child(15) .product-card-media { aspect-ratio: 16 / 9; }
.product-card img { height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.16,1,.3,1); }
.product-card:hover img { transform: scale(1.025); }
.product-card-copy { display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: start; padding-top: 16px; }
.product-card h3 { margin-bottom: 5px; font-size: 21px; font-weight: 610; letter-spacing: -.025em; }
.product-card p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
.product-card .arrow { color: var(--accent); }
.gallery-stage { position: relative; width: 100%; height: 100%; overflow: hidden; border-radius: inherit; background: var(--surface-strong); }
.gallery-stage > img { width: 100%; height: 100%; object-fit: cover; }
.gallery-stage > img[hidden] { display: none; }
.gallery-stage > img.gallery-enter { animation: gallery-enter .28s cubic-bezier(.16,1,.3,1); }
.gallery-controls { position: absolute; right: 14px; bottom: 14px; z-index: 2; display: flex; gap: 7px; }
.gallery-button { width: 42px; height: 42px; padding: 0; border: 1px solid rgb(255 255 255 / .58); border-radius: 50%; background: rgb(17 21 18 / .76); color: #f4f7f4; font-size: 20px; line-height: 1; cursor: pointer; backdrop-filter: blur(10px); transition: transform .2s ease, background-color .2s ease; }
.gallery-button:hover { background: var(--accent); }
.gallery-button:active { transform: scale(.94); }
.product-card-copy .text-link { margin-top: 10px; }

@keyframes gallery-enter {
  from { opacity: .4; transform: scale(1.012); }
  to { opacity: 1; transform: scale(1); }
}

.category-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 58px; }
.category-card { min-height: 230px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); display: flex; flex-direction: column; justify-content: space-between; }
.category-card strong { font-size: clamp(27px, 3vw, 46px); font-weight: 540; letter-spacing: -.04em; }
.category-card p { max-width: 430px; margin-bottom: 0; color: var(--muted); }
.status { align-self: flex-start; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 11px; }

.process-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(40px, 9vw, 150px); }
.process-list { counter-reset: item; }
.process-item { display: grid; grid-template-columns: minmax(140px, .55fr) 1fr; gap: 30px; padding: 28px 0; border-top: 1px solid var(--line); }
.process-item h3 { font-size: 24px; font-weight: 580; }
.process-item p { max-width: 520px; margin-bottom: 0; color: var(--muted); }

.home-confirmation { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(44px, 8vw, 120px); align-items: start; border-top: 1px solid var(--line); }
.home-confirmation .section-copy { margin-bottom: 28px; }
.home-confirmation dl { margin: 0; padding: clamp(24px, 3vw, 38px); border-radius: var(--radius); background: var(--surface); }
.home-confirmation dl div { padding: 20px 0; display: grid; grid-template-columns: minmax(110px, .45fr) 1fr; gap: 24px; border-top: 1px solid var(--line); }
.home-confirmation dl div:first-child { padding-top: 0; border-top: 0; }
.home-confirmation dl div:last-child { padding-bottom: 0; }
.home-confirmation dt { font-weight: 650; }
.home-confirmation dd { margin: 0; color: var(--muted); }

.cta-panel { width: var(--page); margin: 20px auto 90px; padding: clamp(44px, 7vw, 96px); display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 40px; border-radius: var(--radius); background: var(--accent); color: var(--accent-ink); }
.cta-panel h2 { max-width: 900px; margin-bottom: 0; font-size: clamp(40px, 6vw, 86px); font-weight: 540; letter-spacing: -.055em; line-height: .98; }
.cta-panel .button { border-color: var(--accent-ink); color: var(--accent-ink); }

.page-hero { width: var(--page); margin-inline: auto; padding: clamp(76px, 10vw, 140px) 0 clamp(60px, 8vw, 110px); }
.page-hero h1 { max-width: 1100px; margin-bottom: 30px; }
.page-hero > p:not(.eyebrow) { max-width: 650px; margin-left: min(22vw, 310px); color: var(--muted); font-size: clamp(17px, 1.5vw, 21px); }

#catalog { scroll-margin-top: 96px; }
.catalog-browser { padding: 28px 0 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.catalog-browser-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; align-items: start; }
.catalog-browser-head h2 { margin-bottom: 6px; font-size: clamp(24px, 2.5vw, 38px); font-weight: 560; letter-spacing: -.035em; }
.catalog-browser-head p { max-width: 650px; margin-bottom: 0; color: var(--muted); font-size: 14px; }
.filter-axis-row { display: flex; gap: 8px; align-items: center; margin-top: 24px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.filter-axis-row > span { margin-right: 10px; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.filter-axis-button { padding: 7px 0; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 14px; font-weight: 650; cursor: pointer; }
.filter-axis-button + .filter-axis-button { margin-left: 18px; }
.filter-axis-button[aria-pressed="true"] { border-bottom-color: var(--accent); color: var(--ink); }
.filter-panels { min-height: 58px; padding-top: 16px; }
.filter-panel { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-panel[hidden] { display: none; }
.filter-button { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; background: transparent; font-size: 12px; cursor: pointer; }
.filter-button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
.filter-reset { align-self: center; min-width: max-content; }
.catalog { padding-top: 50px; }
.catalog .product-card[hidden] { display: none; }
.catalog-note { display: flex; justify-content: space-between; gap: 30px; margin-bottom: 34px; color: var(--muted); font-size: 13px; }
.empty-state { display: none; min-height: 280px; padding: 44px; border: 1px dashed var(--line); border-radius: var(--radius); align-items: center; justify-content: center; text-align: center; }
.empty-state.show { display: flex; }

.product-detail { scroll-margin-top: 140px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr); gap: clamp(40px, 7vw, 110px); align-items: center; padding-block: 84px; border-top: 1px solid var(--line); }
.product-detail:nth-child(even) .product-detail-media { order: 2; }
.product-detail-media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); background: var(--surface); }
.product-detail-media img { height: 100%; object-fit: cover; }
.product-detail h2 { margin-bottom: 18px; font-size: clamp(34px, 4vw, 60px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.product-detail p { color: var(--muted); }
.meta { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 30px 0; }
.meta div { padding-top: 12px; border-top: 1px solid var(--line); }
.meta small { display: block; margin-bottom: 6px; color: var(--muted); font-size: 11px; }
.meta strong { font-size: 14px; font-weight: 620; }
.pending-note { margin-top: 28px; padding: 15px; border-radius: var(--radius); background: var(--surface); color: var(--muted); font-size: 12px; }

.product-page-hero { width: var(--page); margin-inline: auto; padding: clamp(40px, 6vw, 84px) 0 clamp(64px, 8vw, 110px); }
.back-link { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 48px; color: var(--muted); font-size: 13px; }
.product-page-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr); gap: clamp(40px, 7vw, 110px); align-items: center; }
.product-page-grid > * { min-width: 0; }
.product-gallery { position: relative; aspect-ratio: 4 / 3; min-width: 0; border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.product-gallery .gallery-controls { right: 18px; bottom: 18px; }
.product-page-copy h1 { margin-bottom: 24px; font-size: clamp(44px, 6.2vw, 92px); font-weight: 520; letter-spacing: -.06em; line-height: .94; }
.product-page-copy h1.product-title-long { font-size: clamp(38px, 4.2vw, 64px); line-height: .98; }
.product-page-copy > p { max-width: 590px; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }
.product-page-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.gallery-thumbnails { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 10px; }
.gallery-thumbnails-many { grid-template-columns: repeat(7, minmax(78px, 1fr)); overflow-x: auto; padding-bottom: 4px; }
.gallery-thumbnails-scroll { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: minmax(78px, 1fr); overflow-x: auto; padding-bottom: 4px; }
.gallery-caption { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.gallery-thumbnail { aspect-ratio: 4 / 3; padding: 0; overflow: hidden; border: 2px solid transparent; border-radius: calc(var(--radius) - 5px); background: var(--surface); cursor: pointer; }
.gallery-thumbnail[aria-current="true"] { border-color: var(--accent); }
.gallery-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.product-story { width: var(--page); margin-inline: auto; padding-block: clamp(76px, 9vw, 130px); border-top: 1px solid var(--line); }
.product-story-intro { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(42px, 8vw, 130px); }
.product-story-intro h2 { max-width: 560px; font-size: clamp(36px, 4.7vw, 68px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.product-story-copy { max-width: 720px; color: var(--muted); font-size: 18px; }
.product-story-copy p:last-child { margin-bottom: 0; }
.product-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: clamp(50px, 7vw, 90px); }
.product-fact { min-height: 190px; padding: 26px; border-radius: var(--radius); background: var(--surface); }
.product-fact h3 { margin-bottom: 18px; font-size: 15px; font-weight: 700; }
.product-fact p { margin-bottom: 0; color: var(--muted); }
.sourcing-section { width: var(--page); margin-inline: auto; padding-block: clamp(70px, 8vw, 112px); border-top: 1px solid var(--line); }
.sourcing-section-heading { max-width: 760px; margin-bottom: clamp(36px, 5vw, 62px); }
.sourcing-section-heading .eyebrow { margin-bottom: 16px; }
.sourcing-section-heading h2 { margin-bottom: 18px; font-size: clamp(36px, 4.7vw, 68px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.sourcing-section-heading p { max-width: 680px; margin-bottom: 0; color: var(--muted); font-size: 18px; }
.sourcing-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(28px, 6vw, 90px); margin: 0; padding: 0; list-style: none; }
.sourcing-list li { min-height: 92px; padding: 20px 0; border-top: 1px solid var(--line); color: var(--muted); }
.sourcing-list strong { display: block; margin-bottom: 6px; color: var(--ink); font-size: 14px; }
.sourcing-brief { padding: clamp(30px, 5vw, 58px); border-radius: var(--radius); background: var(--surface); }
.sourcing-brief h2 { max-width: 720px; margin-bottom: 30px; font-size: clamp(34px, 4.4vw, 62px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.sourcing-brief .sourcing-list li { border-color: rgb(75 113 136 / .22); }
.document-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.document-card { min-height: 210px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); }
.document-card span { display: inline-block; margin-bottom: 34px; color: var(--accent); font-size: 11px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.document-card h3 { margin-bottom: 12px; font-size: clamp(22px, 2.3vw, 32px); font-weight: 560; letter-spacing: -.035em; }
.document-card p { margin-bottom: 0; color: var(--muted); }
.product-image-story { width: var(--page); margin-inline: auto; display: grid; grid-template-columns: 1.35fr .65fr; gap: 14px; }
.product-image-story figure { margin: 0; }
.product-image-story img { height: 100%; min-height: 420px; object-fit: cover; border-radius: var(--radius); }
.product-image-story figure:first-child img { min-height: 620px; }
.product-image-story figcaption { padding-top: 10px; color: var(--muted); font-size: 12px; }
.ceiling-visual-strip { width: var(--page); margin-inline: auto; display: grid; grid-template-columns: 1.2fr .75fr 1fr; gap: 14px; }
.ceiling-visual-strip figure, .ceiling-reference-grid figure { margin: 0; min-width: 0; }
.ceiling-visual-strip img { width: 100%; height: clamp(320px, 34vw, 520px); object-fit: cover; border-radius: var(--radius); }
.ceiling-visual-strip figure:nth-child(2) img { object-position: center; }
.ceiling-visual-strip figcaption, .ceiling-reference-grid figcaption { padding-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.ceiling-reference-grid { display: grid; grid-template-columns: 1.1fr .9fr; grid-template-rows: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ceiling-reference-grid figure:first-child { grid-row: 1 / 3; }
.ceiling-reference-grid img { width: 100%; height: 100%; min-height: 250px; object-fit: contain; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.source-reference-scroll { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(300px, 38%); gap: 14px; overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x proximity; }
.source-reference-scroll figure { margin: 0; min-width: 0; scroll-snap-align: start; }
.source-reference-scroll img { width: 100%; height: 300px; object-fit: contain; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.source-reference-scroll figcaption { padding-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.reference-pair { display: grid; grid-template-columns: 1.2fr .8fr; gap: 14px; }
.reference-pair figure { margin: 0; min-width: 0; }
.reference-pair img { width: 100%; height: 420px; object-fit: contain; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.reference-pair figcaption { padding-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.related-products { width: var(--page); margin-inline: auto; padding-block: clamp(76px, 9vw, 130px); }
.related-links { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.related-link { min-height: 170px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid var(--line); border-radius: var(--radius); }
.related-link strong { font-size: clamp(24px, 3vw, 38px); font-weight: 560; letter-spacing: -.04em; }

.axis-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 44px; }
.axis-card { min-height: 280px; padding: 28px; border-radius: var(--radius); background: var(--surface); }
.axis-card h3 { margin-bottom: 28px; font-size: 28px; font-weight: 560; letter-spacing: -.035em; }
.axis-card ul { margin: 0; padding: 0; list-style: none; columns: 2; color: var(--muted); }
.axis-card li { break-inside: avoid; margin-bottom: 8px; }

.feature-media { width: var(--page); margin-inline: auto; display: grid; grid-template-columns: 1.4fr .6fr; gap: 14px; }
.feature-media img { height: min(72vh, 720px); object-fit: cover; border-radius: var(--radius); }
.feature-media-copy { padding: clamp(34px, 5vw, 70px); border-radius: var(--radius); background: var(--surface); display: flex; flex-direction: column; justify-content: flex-end; }
.feature-media-copy h2 { font-size: clamp(36px, 4.5vw, 66px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.feature-media-copy p { color: var(--muted); }

.project-hero { padding-bottom: clamp(48px, 6vw, 82px); }
.project-index { width: var(--page); margin: 0 auto clamp(76px, 9vw, 130px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.project-index a { min-height: 86px; padding: 18px 20px 18px 0; display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; color: var(--muted); font-size: 14px; transition: color .2s ease; }
.project-index a + a { padding-left: 20px; border-left: 1px solid var(--line); }
.project-index a:hover { color: var(--ink); }
.project-sector { width: var(--page); margin-inline: auto; padding-block: clamp(70px, 8vw, 112px); border-top: 1px solid var(--line); scroll-margin-top: 88px; }
.project-sector-head { margin-bottom: clamp(30px, 4vw, 52px); display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; align-items: end; }
.project-sector-head .eyebrow { margin-bottom: 14px; }
.project-sector-head h2 { margin: 0; font-size: clamp(38px, 5vw, 72px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.project-sector-head > p { margin: 0; color: var(--muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.project-photo-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(12px, 1.4vw, 20px); align-items: start; }
.project-photo { margin: 0; min-width: 0; }
.project-photo-four { grid-column: span 4; }
.project-photo-five { grid-column: span 5; }
.project-photo-seven { grid-column: span 7; }
.project-photo-twelve { grid-column: 1 / -1; }
.project-photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius); background: var(--surface); }
.project-photo-landscape img { aspect-ratio: 3 / 2; }
.project-photo figcaption { padding-top: 12px; display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 11px; letter-spacing: .04em; }
.project-photo figcaption span:last-child { color: var(--accent); }
.project-disclosure { width: var(--page); margin: 0 auto clamp(70px, 8vw, 112px); padding: 24px 0 0 min(22vw, 310px); border-top: 1px solid var(--line); }
.project-disclosure p { max-width: 760px; margin: 0; color: var(--muted); font-size: 14px; }

.about-intro { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(42px, 8vw, 130px); align-items: start; }
.about-intro h2 { max-width: 580px; }
.about-intro-copy { max-width: 760px; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }
.about-intro-copy p:last-child { margin-bottom: 0; }
.about-principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 54px; }
.about-principle { min-height: 250px; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; border-radius: var(--radius); background: var(--surface); }
.about-principle span { color: var(--accent); font-size: 12px; font-weight: 750; letter-spacing: .12em; }
.about-principle h3 { margin: 0; font-size: clamp(25px, 2.6vw, 38px); font-weight: 560; letter-spacing: -.04em; line-height: 1.05; }
.about-principle p { margin: 18px 0 0; color: var(--muted); }
.industry-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 38px; }
.industry-list span { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 13px; }

.application-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.application-card { min-height: 290px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; border-radius: var(--radius); background: var(--surface); }
.application-card:first-child { grid-row: span 2; min-height: 594px; background: url("assets/images/project-education.webp") center / cover; color: #f5f7f4; }
.application-card:first-child p { color: rgb(245 247 244 / .84); }
.application-card h2 { font-size: clamp(30px, 4vw, 58px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.application-card p { max-width: 440px; margin-bottom: 0; color: var(--muted); }

.application-hero { width: var(--page); min-height: calc(100dvh - 72px); margin-inline: auto; padding-block: clamp(52px, 7vw, 96px); display: grid; grid-template-columns: minmax(0, .82fr) minmax(520px, 1.18fr); gap: clamp(38px, 6vw, 92px); align-items: center; }
.application-hero-copy h1 { max-width: 700px; margin-bottom: 28px; }
.application-hero-copy > p:not(.eyebrow) { max-width: 560px; margin-bottom: 30px; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }
.application-hero-media { height: min(70vh, 680px); min-height: 540px; display: grid; grid-template-columns: 1.32fr .68fr; grid-template-rows: 1fr 1fr; gap: 12px; }
.application-hero-media figure { position: relative; min-width: 0; min-height: 0; margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--surface); }
.application-hero-media .application-hero-primary { grid-row: 1 / 3; }
.application-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.application-hero-media figcaption { position: absolute; left: 14px; bottom: 14px; padding: 7px 10px; border-radius: 999px; background: rgb(17 26 32 / .76); color: #f7fafb; font-size: 11px; backdrop-filter: blur(10px); }
.application-intro { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(42px, 8vw, 130px); align-items: start; border-top: 1px solid var(--line); }
.application-intro-copy { max-width: 730px; padding-top: 8px; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }
.application-intro-copy p:last-child { margin-bottom: 0; }
.application-process { border-top: 1px solid var(--line); }
.application-process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.application-process-grid article { min-height: 260px; padding: 24px; display: flex; flex-direction: column; border-top: 2px solid var(--accent); background: var(--surface); }
.application-process-grid span { color: var(--accent); font-size: 12px; font-weight: 750; letter-spacing: .12em; }
.application-process-grid h3 { margin: auto 0 14px; font-size: clamp(24px, 2.5vw, 34px); font-weight: 560; letter-spacing: -.04em; line-height: 1.05; }
.application-process-grid p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.application-sectors { border-top: 1px solid var(--line); }
.application-sector-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 52px 14px; }
.application-sector-card { grid-column: span 5; min-width: 0; }
.application-sector-card.application-sector-wide { grid-column: span 7; }
.application-sector-card.application-sector-full { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(320px, .7fr); gap: 14px; align-items: stretch; }
.application-sector-media { position: relative; min-width: 0; aspect-ratio: 16 / 10; overflow: hidden; border-radius: var(--radius); background: var(--surface-strong); }
.application-sector-media img { width: 100%; height: 100%; object-fit: cover; }
.application-sector-media .gallery-stage > img.application-image-focus-ceiling { object-position: center top; }
.application-sector-full .application-sector-media { aspect-ratio: auto; min-height: 480px; }
.application-sector-copy { padding: 24px 2px 28px; border-bottom: 1px solid var(--line); }
.application-sector-full .application-sector-copy { padding: clamp(32px, 4vw, 56px); display: flex; flex-direction: column; justify-content: flex-end; border: 0; border-radius: var(--radius); background: var(--surface); }
.application-sector-copy .eyebrow { margin-bottom: 13px; }
.application-sector-copy h2 { margin-bottom: 16px; font-size: clamp(34px, 4vw, 58px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.application-sector-copy > p:not(.eyebrow) { max-width: 620px; margin-bottom: 24px; color: var(--muted); }
.application-product-links { display: flex; flex-wrap: wrap; gap: 8px; }
.application-product-links a { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 11px; transition: border-color .2s ease, color .2s ease; }
.application-product-links a:hover { border-color: var(--accent); color: var(--ink); }
.application-media-note { max-width: 760px; margin: 44px 0 0 auto; color: var(--muted); font-size: 12px; }
.application-brief { border-top: 1px solid var(--line); }
.application-brief-heading { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(42px, 8vw, 130px); align-items: start; margin-bottom: clamp(44px, 6vw, 74px); }
.application-brief-heading .eyebrow { grid-column: 1 / -1; margin-bottom: -10px; }
.application-brief-heading .section-title { margin-bottom: 0; }
.application-brief-heading .section-copy { padding-top: 8px; }
.application-brief-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.application-brief-grid article { min-height: 240px; padding: 26px; display: flex; flex-direction: column; border-radius: var(--radius); background: var(--surface); }
.application-brief-grid span { color: var(--accent); font-size: 11px; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.application-brief-grid h3 { margin: auto 0 13px; font-size: clamp(23px, 2.2vw, 32px); font-weight: 560; letter-spacing: -.035em; line-height: 1.08; }
.application-brief-grid p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.application-boundary { margin-bottom: clamp(70px, 8vw, 110px); }

.resource-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.resource-card { min-height: 250px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); display: flex; flex-direction: column; justify-content: space-between; }
.resource-card h2 { font-size: 32px; font-weight: 560; letter-spacing: -.04em; }
.resource-card p { color: var(--muted); }
.resource-card-featured { grid-column: 1 / -1; min-height: 310px; background: var(--surface); }
.resource-card-featured h2 { max-width: 720px; font-size: clamp(36px, 5vw, 64px); line-height: 1; }

.checklist-toolbar { width: var(--page); margin: -34px auto 0; display: flex; justify-content: flex-end; }
.checklist-toolbar .button { background: var(--bg); }
.checklist-shell { width: var(--page); margin-inline: auto; padding-bottom: clamp(76px, 9vw, 130px); }
.checklist-summary { max-width: 780px; margin-bottom: 46px; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }
.checklist-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.checklist-group { padding: clamp(24px, 3vw, 38px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.checklist-group h2 { margin-bottom: 24px; font-size: clamp(28px, 3vw, 42px); font-weight: 560; letter-spacing: -.04em; line-height: 1.05; }
.checklist-items { display: grid; gap: 14px; }
.checklist-item { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; align-items: start; color: var(--muted); cursor: pointer; }
.checklist-item input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--accent); }
.checklist-item strong { display: block; margin-bottom: 2px; color: var(--ink); font-weight: 620; }
.checklist-item span { display: block; font-size: 13px; }
.checklist-notes { margin-top: 14px; padding: clamp(24px, 3vw, 38px); border: 1px solid var(--line); border-radius: var(--radius); }
.checklist-notes h2 { margin-bottom: 20px; font-size: 28px; font-weight: 560; letter-spacing: -.035em; }
.checklist-note-line { height: 42px; border-bottom: 1px solid var(--line); }
.checklist-boundary { max-width: 850px; margin: 34px 0 0; color: var(--muted); font-size: 13px; }

.form-layout { display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(50px, 9vw, 140px); }
.form-intro { position: sticky; top: 120px; align-self: start; }
.form-intro h2 { font-size: clamp(38px, 5vw, 66px); font-weight: 540; letter-spacing: -.05em; line-height: 1; }
.form-intro p { color: var(--muted); }
.payment-trust { margin-top: 36px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.payment-trust .eyebrow { margin-bottom: 12px; color: var(--accent); }
.payment-trust h3 { margin-bottom: 16px; font-size: 22px; font-weight: 600; letter-spacing: -.025em; line-height: 1.15; }
.payment-trust p:not(.eyebrow) { margin-bottom: 12px; font-size: 14px; }
.payment-trust-action { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 20px; }
.payment-trust-action small { color: var(--muted); font-size: 11px; }
.quote-form { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { color: var(--ink); font-size: 13px; font-weight: 620; }
.field-label { color: var(--ink); font-size: 13px; font-weight: 620; }
.field small { color: var(--muted); font-size: 12px; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); color: var(--ink); }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); opacity: 1; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.form-status { grid-column: 1 / -1; display: none; padding: 18px; border-radius: var(--radius); background: var(--surface); color: var(--ink); }
.form-status.show { display: block; }
.form-status strong, .form-status span, .form-status small { display: block; }
.form-status strong { margin-bottom: 9px; }
.form-status span { margin-top: 7px; color: var(--muted); font-size: 14px; }
.form-status small { margin-top: 12px; color: var(--muted); font-size: 11px; }
.form-status[data-state="success"] { background: #eaf3ed; border: 1px solid #b8d2bf; }
.form-status[data-state="error"] { background: #f8ece9; border: 1px solid #ddbab1; }
.form-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.quote-form button[disabled] { cursor: wait; opacity: .65; }
.form-error { min-height: 18px; color: #a33232; font-size: 12px; }

.footer { padding: 70px max(24px, calc((100vw - 1440px) / 2)) 24px; background: var(--surface); }
.footer-top { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding-bottom: 60px; }
.footer-top > p { max-width: 430px; color: var(--muted); }
.footer-brand-block { display: flex; flex-direction: column; align-items: flex-start; gap: 28px; }
.footer-social { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-social a { display: inline-flex; align-items: center; gap: 7px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; transition: border-color .2s ease, color .2s ease, transform .2s ease; }
.footer-social a:hover { border-color: var(--accent); color: var(--ink); transform: translateY(-1px); }
.footer-social span { color: var(--accent); font-size: 14px; line-height: 1; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links div { display: flex; flex-direction: column; gap: 9px; font-size: 13px; }
.footer-links strong { margin-bottom: 8px; color: var(--muted); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }

.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-visible { opacity: 1; transform: translateY(0); transition: opacity .65s cubic-bezier(.16,1,.3,1), transform .65s cubic-bezier(.16,1,.3,1); }

@media (max-width: 1080px) {
  :root { --page: calc(100% - 40px); }
  .site-header { gap: 22px; padding-inline: 20px; }
  .nav { gap: 17px; }
  .hero { grid-template-columns: .9fr 1.1fr; gap: 34px; }
  .product-card { grid-column: span 6; }
  .product-card:nth-child(1), .product-card:nth-child(15) { grid-column: span 6; }
  .product-card:nth-child(1) .product-card-media, .product-card:nth-child(15) .product-card-media { aspect-ratio: 4 / 3; }
  .application-hero { grid-template-columns: minmax(0, .9fr) minmax(460px, 1.1fr); gap: 34px; }
  .application-process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1040px) {
  .site-header { height: 66px; grid-template-columns: 1fr auto; }
  .header-actions { display: none; }
  .menu-toggle { display: block; }
  .nav { position: fixed; inset: 66px 0 auto 0; display: none; width: 100%; padding: 24px 16px 30px; justify-self: stretch; align-items: stretch; flex-direction: column; background: var(--bg); border-bottom: 1px solid var(--line); font-size: 20px; }
  .nav.open { display: flex; }
  .nav a { padding: 7px 0; }
  .nav-social { display: flex; gap: 8px; margin-top: 8px; padding-top: 18px; border-top: 1px solid var(--line); }
  .nav-social .social-icon-link { padding: 0; }
}

@media (max-width: 820px) {
  :root { --page: calc(100% - 32px); }
  .hero { min-height: auto; padding-block: 48px 72px; grid-template-columns: 1fr; }
  .hero-visual-frame { height: min(68vh, 620px); min-height: 440px; }
  .home-browser, .home-confirmation, .process-layout, .form-layout, .about-intro { grid-template-columns: 1fr; }
  .home-browser-intro { position: static; }
  .home-feature-card, .home-feature-card:nth-child(2), .home-feature-card:nth-child(3) { grid-column: span 6; }
  .home-feature-card .home-feature-media, .home-feature-card:nth-child(2) .home-feature-media, .home-feature-card:nth-child(3) .home-feature-media { aspect-ratio: 4 / 3; }
  .page-hero > p:not(.eyebrow) { margin-left: 0; }
  .catalog-browser-head { grid-template-columns: 1fr; }
  .filter-reset { justify-self: start; }
  .filter-axis-row, .filter-panel { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .filter-axis-row::-webkit-scrollbar, .filter-panel::-webkit-scrollbar { display: none; }
  .filter-axis-row > *, .filter-panel > * { flex: 0 0 auto; }
  .filter-axis-row > span { margin-right: 4px; }
  .filter-axis-button + .filter-axis-button { margin-left: 8px; }
  .product-detail { grid-template-columns: 1fr; }
  .product-detail:nth-child(even) .product-detail-media { order: 0; }
  .product-page-grid, .product-story-intro, .product-image-story { grid-template-columns: 1fr; }
  .ceiling-visual-strip { grid-template-columns: 1.1fr .9fr; }
  .ceiling-visual-strip figure:first-child { grid-column: 1 / -1; }
  .ceiling-visual-strip img { height: auto; aspect-ratio: 16 / 10; }
  .ceiling-reference-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .ceiling-reference-grid figure:first-child { grid-row: auto; }
  .ceiling-reference-grid img { min-height: 0; aspect-ratio: 3 / 1; }
  .source-reference-scroll { grid-auto-columns: minmax(280px, 72%); }
  .reference-pair { grid-template-columns: 1fr; }
  .reference-pair img { height: auto; aspect-ratio: 16 / 9; }
  .sourcing-list, .document-grid { grid-template-columns: 1fr; }
  .product-page-copy { order: -1; }
  .product-image-story img, .product-image-story figure:first-child img { min-height: 0; aspect-ratio: 4 / 3; }
  .feature-media { grid-template-columns: 1fr; }
  .feature-media img { height: 480px; }
  .project-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-index a:nth-child(3) { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .project-index a:nth-child(4) { border-top: 1px solid var(--line); }
  .project-photo-four { grid-column: span 6; }
  .project-photo-grid-residential .project-photo:last-child { grid-column: 4 / 10; }
  .project-disclosure { padding-left: 0; }
  .application-list { grid-template-columns: 1fr; }
  .application-hero { min-height: auto; padding-block: 52px 78px; grid-template-columns: 1fr; }
  .application-hero-copy { max-width: 720px; }
  .application-hero-media { height: min(72vh, 620px); min-height: 500px; }
  .application-intro, .application-brief-heading { grid-template-columns: 1fr; }
  .application-brief-heading .eyebrow { grid-column: auto; margin-bottom: 0; }
  .application-sector-card, .application-sector-card.application-sector-wide { grid-column: 1 / -1; }
  .application-sector-card.application-sector-full { display: block; }
  .application-sector-full .application-sector-media { min-height: 0; aspect-ratio: 16 / 10; }
  .application-sector-full .application-sector-copy { margin-top: 14px; }
  .application-brief-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-principles { grid-template-columns: 1fr; }
  .checklist-grid { grid-template-columns: 1fr; }
  .application-card:first-child { grid-row: auto; min-height: 480px; }
  .form-intro { position: static; }
  .footer-top { grid-template-columns: 1fr; }
  .cta-panel { grid-template-columns: 1fr; align-items: start; }
}

@media (max-width: 560px) {
  .display { font-size: clamp(44px, 14vw, 64px); }
  .section { padding-block: 72px; }
  .hero-copy > p:not(.eyebrow) { font-size: 17px; }
  .hero-visual-frame { min-height: 360px; height: 56vh; }
  .home-role-strip { grid-template-columns: 1fr; }
  .home-role-strip div { min-height: 96px; padding: 20px 0; }
  .home-role-strip div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .home-browser-workspace { padding: 22px 18px; }
  .home-browser-panel { grid-template-columns: 1fr; }
  .home-browser-panel a { min-height: 100px; }
  .home-feature-card, .home-feature-card:nth-child(2), .home-feature-card:nth-child(3) { grid-column: 1 / -1; }
  .home-confirmation dl div { grid-template-columns: 1fr; gap: 6px; }
  .application-hero-media { height: 440px; min-height: 0; grid-template-columns: 1fr 1fr; grid-template-rows: 1.2fr .8fr; }
  .application-hero-media .application-hero-primary { grid-column: 1 / -1; grid-row: auto; }
  .application-process-grid, .application-brief-grid { grid-template-columns: 1fr; }
  .application-process-grid article, .application-brief-grid article { min-height: 220px; }
  .application-sector-grid { gap-block: 42px; }
  .product-card, .product-card:nth-child(1), .product-card:nth-child(15) { grid-column: 1 / -1; }
  .category-strip, .axis-grid, .resource-list { grid-template-columns: 1fr; }
  .resource-card-featured { grid-column: auto; }
  .process-item { grid-template-columns: 1fr; gap: 8px; }
  .catalog-note { flex-direction: column; gap: 4px; }
  .product-detail { padding-block: 60px; }
  .meta { grid-template-columns: 1fr; }
  .gallery-controls { right: 10px; bottom: 10px; }
  .gallery-button { width: 40px; height: 40px; }
  .product-facts, .related-links { grid-template-columns: 1fr; }
  .sourcing-brief { padding: 28px 22px; }
  .document-card { min-height: 0; }
  .gallery-thumbnails { grid-template-columns: repeat(4, minmax(74px, 1fr)); overflow-x: auto; padding-bottom: 4px; }
  .gallery-thumbnails-many { grid-template-columns: repeat(7, minmax(74px, 1fr)); }
  .gallery-thumbnails-scroll { grid-template-columns: none; grid-template-rows: 1fr; grid-auto-columns: 74px; }
  .ceiling-visual-strip { grid-template-columns: 1fr; }
  .ceiling-visual-strip figure:first-child { grid-column: auto; }
  .source-reference-scroll { grid-auto-columns: 86%; }
  .gallery-thumbnail { min-width: 74px; }
  .axis-card ul { columns: 1; }
  .feature-media img { height: 360px; }
  .project-index { grid-template-columns: 1fr; }
  .project-index a, .project-index a + a, .project-index a:nth-child(3) { min-height: 64px; padding: 14px 0; border-top: 1px solid var(--line); border-left: 0; }
  .project-index a:first-child { border-top: 0; }
  .project-sector-head { grid-template-columns: 1fr; gap: 12px; }
  .project-sector-head > p { display: none; }
  .project-photo-four, .project-photo-five, .project-photo-seven, .project-photo-grid-residential .project-photo:last-child { grid-column: 1 / -1; }
  .project-photo img { aspect-ratio: auto; }
  .quote-form { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; }
}

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

@media print {
  :root { color-scheme: light; --bg: #fff; --surface: #fff; --ink: #111; --muted: #333; --line: #bbb; }
  .site-header, .footer, .checklist-toolbar, .cta-panel { display: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .page-hero { min-height: 0; padding: 24px 0 30px; }
  .page-hero .display { font-size: 42px; }
  .checklist-shell { padding-bottom: 0; }
  .checklist-summary { margin-bottom: 22px; font-size: 14px; }
  .checklist-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .checklist-group, .checklist-notes { break-inside: avoid; padding: 18px; }
  .checklist-group h2, .checklist-notes h2 { font-size: 22px; }
  .checklist-items { gap: 9px; }
  .checklist-item span, .checklist-boundary { font-size: 11px; }
}