:root {
  --ink: #17120f;
  --muted: #6f625c;
  --cream: #f7f1ea;
  --paper: #fffaf5;
  --clay: #9e5c3f;
  --clay-dark: #70412e;
  --cyan: #34d6d3;
  --white: #ffffff;
  --dark: #101416;
  --line: rgba(112,65,46,.14);
  --shadow: 0 26px 80px rgba(112,65,46,.14);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  z-index: 20;
  width: min(1180px, calc(100% - 32px));
  min-height: 66px;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 12px 14px 12px 18px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 18px;
  background: rgba(20,18,16,.72);
  color: var(--white);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 70px rgba(0,0,0,.22);
}

.brand img { width: 142px; height: auto; filter: brightness(0) invert(1); }
.desktop-nav { justify-self: center; display: flex; gap: 22px; font-size: 13px; font-weight: 750; color: rgba(255,255,255,.78); }
.desktop-nav a:hover { color: var(--white); }
.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 850;
  white-space: nowrap;
}
.nav-cta,
.button--primary { background: var(--cyan); color: #071112; }
.button--secondary { border: 1px solid rgba(255,255,255,.34); color: var(--white); background: rgba(255,255,255,.08); }

.hero-section {
  position: relative;
  min-height: 96vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  background: #121416;
}
.hero-bg,
.hero-bg img,
.hero-overlay { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.9) contrast(1.06); }
.hero-overlay {
  background:
    linear-gradient(90deg, rgba(12,13,14,.88) 0%, rgba(12,13,14,.58) 46%, rgba(12,13,14,.28) 100%),
    linear-gradient(0deg, rgba(12,13,14,.96), rgba(12,13,14,.12) 52%);
}
.hero-shell {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 136px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(280px, 360px);
  gap: clamp(36px, 6vw, 82px);
  align-items: end;
}
.hero-copy h1,
.section-heading h2,
.section-copy h2,
.proof-copy h2 {
  margin: 0;
  font-family: Montserrat, Inter, sans-serif;
  letter-spacing: -.055em;
  line-height: .95;
}
.hero-copy h1 { max-width: 11ch; font-size: clamp(54px, 8vw, 112px); }
.hero-copy p {
  max-width: 660px;
  margin: 24px 0 0;
  color: rgba(255,255,255,.78);
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.55;
}
.eyebrow,
.eyebrow-dark {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 12px;
  font-weight: 900;
}
.eyebrow { color: var(--cyan); }
.eyebrow-dark { color: var(--clay); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-panel {
  padding: 24px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.10);
  backdrop-filter: blur(18px);
}
.hero-panel span { color: var(--cyan); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .14em; }
.hero-panel strong { display: block; margin-top: 10px; font-size: 28px; line-height: 1.05; }
.hero-panel p { margin: 12px 0 0; color: rgba(255,255,255,.76); line-height: 1.55; }

.section { padding: clamp(64px, 7vw, 108px) 0; }
.section--cream { background: linear-gradient(180deg, var(--paper), var(--cream)); }
.section--dark { background: var(--dark); color: var(--white); }
.section-shell { width: min(1180px, calc(100% - 36px)); margin: 0 auto; }
.section-heading { max-width: 760px; margin-bottom: clamp(26px, 4vw, 48px); }
.section-heading h2,
.section-copy h2,
.proof-copy h2 { font-size: clamp(38px, 5vw, 76px); }
.section-heading p:not(.eyebrow-dark),
.section-copy p,
.proof-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}
.section--dark .section-copy p,
.section--dark .proof-copy p { color: rgba(255,255,255,.74); }

.product-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.asset-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
}
.asset-card--dark { background: #171b1d; color: var(--white); border-color: rgba(255,255,255,.18); }
.asset-card figure { margin: 0; background: #eee5dc; aspect-ratio: 1.18; overflow: hidden; }
.asset-card figure img { width: 100%; height: 100%; object-fit: cover; }
.asset-card__content { padding: clamp(24px, 3vw, 36px); }
.asset-card__content span,
.system-node span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--cyan);
  color: #061314;
  font-weight: 900;
  font-size: 13px;
}
.asset-card h3 { margin: 18px 0 10px; font-size: clamp(26px, 3vw, 40px); line-height: 1.05; letter-spacing: -.035em; }
.asset-card p { color: var(--muted); line-height: 1.62; }
.asset-card--dark p { color: rgba(255,255,255,.72); }
.asset-card ul { margin: 22px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.asset-card li { padding-left: 18px; position: relative; color: inherit; font-weight: 700; }
.asset-card li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); }

.scenario-section {
  background:
    radial-gradient(circle at 88% 12%, rgba(52,214,211,.12), transparent 24%),
    linear-gradient(180deg, #f1e8df, var(--paper));
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.scenario-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.68);
  box-shadow: 0 18px 55px rgba(112,65,46,.08);
}

.scenario-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(158,92,63,.12);
  color: var(--clay-dark);
  font-size: 13px;
  font-weight: 900;
}

.scenario-card h3 {
  margin: auto 0 12px;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.05;
  letter-spacing: -.035em;
}

.scenario-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.proof-layout,
.app-layout,
.grid-2 {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  gap: clamp(36px, 6vw, 78px);
  align-items: center;
}
.proof-list,
.benefit-list { display: grid; gap: 14px; margin-top: 28px; }
.proof-list div,
.benefit-list div {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.07);
}
.proof-list strong,
.benefit-list strong { display: block; margin-bottom: 5px; color: var(--white); }
.proof-list span,
.benefit-list span { color: rgba(255,255,255,.68); line-height: 1.5; }
.proof-media { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.proof-media figure,
.install-image,
.system-visual {
  margin: 0;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.18);
  background: #111719;
  box-shadow: 0 30px 90px rgba(0,0,0,.24);
}
.proof-media__large { grid-column: 1 / -1; aspect-ratio: 16 / 8; }
.proof-media figure:not(.proof-media__large) { aspect-ratio: 1.18; }
.proof-media img,
.install-image img,
.system-visual img { width: 100%; height: 100%; object-fit: cover; }

.system-section { background: linear-gradient(180deg, var(--paper), #f1e8df); }
.system-visual {
  max-width: 784px;
  margin: 0 auto clamp(26px, 4vw, 44px);
  aspect-ratio: 16 / 9;
  border-color: rgba(255,255,255,.82);
  box-shadow: 0 32px 90px rgba(112,65,46,.16), 0 0 0 12px rgba(255,255,255,.42);
}
.system-map {
  display: grid;
  grid-template-columns: 1fr 26px 1fr 26px 1fr 26px 1fr;
  gap: 10px;
  align-items: stretch;
}
.system-node {
  min-height: 210px;
  padding: 22px;
  border-radius: 22px;
  border: 1px solid rgba(112,65,46,.13);
  background: rgba(255,255,255,.72);
}
.system-node strong { display: block; margin: 16px 0 8px; font-size: 20px; }
.system-node p { margin: 0; color: var(--muted); line-height: 1.5; }
.system-link { position: relative; min-height: 2px; }
.system-link::before { content: ""; position: absolute; top: 50%; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--clay), var(--cyan)); }

.use-case-section {
  background: var(--paper);
}

.use-case-layout {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(500px, 1.18fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: start;
}

.use-case-intro {
  max-width: 440px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.use-case-image {
  margin: 0;
  overflow: hidden;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(112, 65, 46, .07);
}

.use-case-image img {
  display: block;
  width: 100%;
  aspect-ratio: 458 / 374;
  object-fit: cover;
  object-position: center;
}

.range-feature {
  width: 100%;
  margin: 30px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.72);
  box-shadow: 0 18px 48px rgba(112,65,46,.07);
}

.range-feature img {
  display: block;
  width: 100%;
  aspect-ratio: auto;
  object-fit: contain;
  background: #f5f5f5;
}

.range-feature figcaption {
  display: grid;
  gap: 4px;
  padding: 16px 20px 18px;
}

.range-feature figcaption strong {
  color: var(--ink);
  font-size: 16px;
  line-height: 1.35;
}

.range-feature figcaption span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.app-layout {
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .67fr);
  gap: clamp(28px, 3.5vw, 46px);
}
.phone-stack { min-height: 560px; position: relative; }
.phone-stack img {
  position: absolute;
  width: min(38%, 210px);
  filter: drop-shadow(0 24px 40px rgba(112,65,46,.18));
}
.phone-stack img:nth-child(1) { left: 34%; top: 0; z-index: 3; }
.phone-stack img:nth-child(2) { left: 6%; top: 84px; z-index: 2; }
.phone-stack img:nth-child(3) { right: 4%; top: 128px; z-index: 1; }
.hub-app-media {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 8px solid #fff;
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(112,65,46,.15);
}
.hub-app-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.app-layout .section-copy h2 { font-size: clamp(30px, 2.7vw, 40px); line-height: 1.04; }
.app-layout .section-copy > p:not(.eyebrow-dark) { font-size: 14px; line-height: 1.6; }
.metric-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 26px; }
.metric-row div {
  padding: 20px;
  border-radius: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 50px rgba(112,65,46,.08);
}
.metric-row strong { display: block; font-size: 34px; line-height: 1; color: var(--clay); }
.metric-row span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.35; font-weight: 700; }

.install-section .grid-2 { grid-template-columns: minmax(0, 1fr) minmax(360px, .75fr); }
.install-image { aspect-ratio: 1; border-color: rgba(255,255,255,.18); }
.specs-section { background: var(--paper); }
.spec-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.spec-grid div { padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.52); }
.spec-grid span { display: block; color: var(--clay); font-size: 12px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.spec-grid strong { display: block; margin-top: 10px; font-size: 18px; line-height: 1.35; }

.faq-section { background: linear-gradient(180deg, #f1e8df, var(--paper)); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .82fr) minmax(420px, 1.18fr); gap: clamp(34px, 5vw, 70px); align-items: start; }
.faq-list { display: grid; gap: 10px; }
details { border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.74); overflow: hidden; }
summary { cursor: pointer; padding: 20px 22px; font-weight: 850; }
details p { margin: 0; padding: 0 22px 20px; color: var(--muted); line-height: 1.6; }

.site-footer { padding: 48px 0 26px; background: #0f1213; color: var(--white); }
.footer-inner { width: min(1180px, calc(100% - 36px)); margin: 0 auto; display: flex; justify-content: space-between; gap: 28px; }
.footer-inner img { width: 150px; filter: brightness(0) invert(1); }
.footer-inner p { max-width: 420px; color: rgba(255,255,255,.64); line-height: 1.55; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 18px; align-content: start; color: rgba(255,255,255,.72); font-weight: 750; }
.site-map-bottom { width: min(1180px, calc(100% - 36px)); margin: 30px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.48); font-size: 13px; }
.back-to-top { position: fixed; right: 18px; bottom: 18px; z-index: 16; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; background: var(--cyan); color: #071112; font-weight: 900; box-shadow: 0 16px 40px rgba(0,0,0,.22); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: auto auto; justify-content: space-between; }
  .desktop-nav { display: none; }
  .hero-section { min-height: 860px; }
  .hero-shell,
  .product-pair,
  .proof-layout,
  .app-layout,
  .grid-2,
  .use-case-layout,
  .faq-layout { grid-template-columns: 1fr; }
  .hero-copy h1 { max-width: 12ch; }
  .scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .system-map { grid-template-columns: 1fr; }
  .system-link { min-height: 24px; }
  .system-link::before { left: 50%; top: 0; bottom: 0; width: 2px; height: auto; right: auto; }
  .spec-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  html { overflow-x: hidden; }
  .site-header { top: 10px; width: calc(100% - 20px); border-radius: 16px; }
  .brand img { width: 118px; }
  .nav-cta { min-height: 38px; padding: 0 13px; font-size: 12px; }
  .hero-section { min-height: 820px; }
  .hero-shell { width: min(100% - 28px, 1180px); padding-bottom: 48px; }
  .hero-panel { min-width: 0; }
  .hero-copy h1 { font-size: 48px; }
  .section-shell { width: min(100% - 28px, 1180px); }
  .section-heading h2,
  .section-copy h2,
  .proof-copy h2 { font-size: 38px; letter-spacing: -.045em; }
  .proof-media { grid-template-columns: 1fr; }
  .proof-media__large { grid-column: auto; aspect-ratio: 1.18; }
  .phone-stack { min-height: 500px; }
  .phone-stack img { width: 46%; }
  .phone-stack img:nth-child(1) { left: 27%; }
  .phone-stack img:nth-child(2) { left: 0; top: 96px; }
  .phone-stack img:nth-child(3) { right: 0; top: 142px; }
  .metric-row,
  .scenario-grid,
  .spec-grid { grid-template-columns: 1fr; }
  .use-case-intro { margin-top: 18px; font-size: 15px; }
  .use-case-image { border-radius: 18px; }
  .footer-inner { display: grid; }
}

/* v25: exact Door & Window section-message treatment across this page. */
.section .eyebrow,
.section .eyebrow-dark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  min-height: 0;
  margin: 0 0 18px;
  padding: 9px 14px;
  border-radius: 999px;
  font-family: Montserrat, Inter, sans-serif;
  font-size: 12px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: .105em;
  text-transform: uppercase;
  box-shadow: none;
}

.section .eyebrow {
  border: 1px solid rgba(253,230,214,.22);
  background: rgba(253,230,214,.08);
  color: var(--cream);
  backdrop-filter: blur(14px);
}

.section .eyebrow-dark {
  border: 1px solid rgba(158,92,63,.15);
  background: rgba(158,92,63,.08);
  color: var(--clay-dark);
}

.section .eyebrow::before,
.section .eyebrow-dark::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(52,214,211,.9);
}

.section--dark .eyebrow,
.section--dark .eyebrow-dark,
.product-detail-section .eyebrow,
.product-detail-section .eyebrow-dark {
  color: rgba(255,250,246,.90);
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.18);
}

/* v26 final cascade lock: must remain last in this legacy stylesheet. */
@media (max-width: 760px) {
  .asset-specialty-page .system-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .asset-specialty-page .system-link {
    display: none;
  }

  .asset-specialty-page .system-node {
    width: 100%;
    min-height: 88px;
    height: 88px;
  }
}

/* v26: compact, touch-friendly Asset signal flow on mobile.
   Keep the changing image and all four controls visible in one viewport. */
@media (max-width: 760px) {
  .asset-specialty-page .system-section {
    padding-top: 38px;
    padding-bottom: 38px;
  }

  .asset-specialty-page .system-section .section-shell {
    width: calc(100% - 32px);
  }

  .asset-specialty-page .system-section .section-heading .eyebrow-dark {
    margin-bottom: 10px;
    padding: 7px 11px;
    font-size: 10px;
  }

  .asset-specialty-page .system-section .section-heading h2 {
    margin-bottom: 8px;
    font-size: clamp(27px, 7.4vw, 34px);
    line-height: 1;
  }

  .asset-specialty-page .system-section .section-heading > p:last-child {
    margin: 0;
    font-size: 12px;
    line-height: 1.35;
  }

  .asset-specialty-page .system-visual {
    width: calc(100% - 8px);
    margin: 16px auto 14px;
    border-radius: 19px;
    box-shadow: 0 14px 38px rgba(112,65,46,.14), 0 0 0 5px rgba(255,255,255,.42);
  }

  .asset-specialty-page .system-visual__badge {
    left: 12px;
    bottom: 11px;
    padding: 7px 10px;
    font-size: 9px;
  }

  .asset-specialty-page .system-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .asset-specialty-page .system-link {
    display: none;
  }

  .asset-specialty-page .system-node {
    min-height: 88px;
    height: 88px;
    aspect-ratio: auto;
    grid-template-columns: 30px minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    column-gap: 9px;
    row-gap: 3px;
    padding: 10px;
    border-radius: 17px;
    box-shadow: 0 10px 28px rgba(112,65,46,.08);
  }

  .asset-specialty-page .system-node:hover {
    transform: none;
  }

  .asset-specialty-page .system-node span {
    grid-row: 1 / 3;
    width: 30px;
    height: 30px;
    min-width: 30px;
    min-height: 30px;
    margin: 0;
    font-size: 9px;
  }

  .asset-specialty-page .system-node strong {
    align-self: end;
    font-size: 11px;
    line-height: 1.08;
  }

  .asset-specialty-page .system-node p {
    display: -webkit-box;
    overflow: hidden;
    font-size: 9px;
    line-height: 1.18;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
  }
}

/* v26 final title lock: canonical Asset & Specialty typography. */
.section-heading h2,
.section-copy h2,
.proof-copy h2,
.spec-table-panel > h2 {
  font-family: Montserrat, Inter, sans-serif;
  font-size: clamp(38px, 4.6vw, 60px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.055em;
}

/* v26: match the main index back-to-top control exactly. */
.back-to-top {
  position: fixed;
  right: clamp(16px, 2vw, 26px);
  bottom: clamp(16px, 2vw, 26px);
  z-index: 30;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50%;
  color: white;
  background: linear-gradient(135deg, rgba(158,92,63,.92), rgba(111,63,43,.94));
  box-shadow: 0 14px 34px rgba(14,17,19,.22);
  font: 800 16px/1 Montserrat, Inter, sans-serif;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 8px, 0);
  transition: opacity .22s ease, transform .22s ease, box-shadow .22s ease;
}

.back-to-top.is-visible {
  opacity: .86;
  pointer-events: auto;
  transform: translate3d(0, 0, 0);
}

.back-to-top:hover {
  opacity: 1;
  transform: translate3d(0, -2px, 0);
  box-shadow: 0 18px 42px rgba(14,17,19,.28);
}

/* v26 cascade lock: one section-title system for the integrated website. */
.section-heading h2,
.section-copy h2,
.proof-copy h2,
.spec-table-panel > h2 {
  font-family: Montserrat, Inter, sans-serif;
  font-size: clamp(38px, 4.6vw, 60px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.055em;
}

/* v24: exact Door & Window signal-flow structure, sizing, colour and interaction. */
.system-section {
  background: linear-gradient(180deg, #fffaf6, #f5eee7);
}

.system-visual {
  position: relative;
  width: 100%;
  max-width: 784px;
  margin: clamp(28px, 4.5vw, 54px) auto clamp(30px, 4vw, 48px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 34px;
  background: #111517;
  border: 1px solid rgba(255,255,255,.72);
  box-shadow: 0 32px 90px rgba(112,65,46,.16), 0 0 0 12px rgba(255,255,255,.42);
  isolation: isolate;
}

.system-visual::before,
.system-visual::after { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.system-visual::before { background: linear-gradient(180deg, rgba(14,17,19,.02), rgba(14,17,19,.20)), radial-gradient(circle at 18% 18%, rgba(52,214,211,.16), transparent 30%); mix-blend-mode: screen; }
.system-visual::after { box-shadow: inset 0 0 0 1px rgba(255,255,255,.26), inset 0 -80px 120px rgba(14,17,19,.20); }

.system-visual .system-visual__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.045);
  filter: saturate(.96) contrast(1.02);
  transition: opacity .42s ease, transform 1.1s ease, filter .42s ease;
}

.system-visual__badge { position: absolute; left: 22px; bottom: 22px; z-index: 4; display: inline-flex; align-items: center; gap: 7px; padding: 10px 14px; border-radius: 999px; color: #fff; background: rgba(14,17,19,.52); border: 1px solid rgba(255,255,255,.26); backdrop-filter: blur(14px); box-shadow: 0 14px 40px rgba(0,0,0,.24); font-size: 12px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.system-visual__badge strong { color: var(--cyan); }
.system-section[data-active-step="1"] .system-visual__image[data-system-image="1"],
.system-section[data-active-step="2"] .system-visual__image[data-system-image="2"],
.system-section[data-active-step="3"] .system-visual__image[data-system-image="3"],
.system-section[data-active-step="4"] .system-visual__image[data-system-image="4"] { opacity: 1; transform: scale(1); filter: saturate(1.04) contrast(1.04); }

.system-map { display: grid; grid-template-columns: 1fr 26px 1fr 26px 1fr 26px 1fr; align-items: start; gap: 10px; }
.system-node { box-sizing: border-box; width: 100%; aspect-ratio: 4 / 3; min-height: 0; height: auto; display: grid; grid-template-rows: auto auto 1fr; align-content: start; gap: clamp(5px, .55vw, 8px); overflow: hidden; padding: clamp(13px, 1.18vw, 17px) clamp(13px, 1.25vw, 18px); border-radius: 26px; background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,248,242,.90)); border: 1px solid rgba(158,92,63,.14); box-shadow: 0 24px 70px rgba(112,65,46,.10); cursor: pointer; transition: transform .3s ease, box-shadow .3s ease; }
.system-node:hover { transform: translateY(-7px); box-shadow: 0 28px 72px rgba(112,65,46,.15); }
.system-node--active, .system-node.is-active { background: radial-gradient(circle at 84% 16%, rgba(52,214,211,.24), transparent 30%), linear-gradient(135deg, #0c1012, #20272a 58%, #72432f); color: #fff; }
.system-node span { box-sizing: border-box; width: clamp(32px, 2.75vw, 38px); height: clamp(32px, 2.75vw, 38px); min-width: clamp(32px, 2.75vw, 38px); min-height: clamp(32px, 2.75vw, 38px); display: inline-flex; align-items: center; justify-content: center; margin: 0 0 clamp(1px, .32vw, 4px); border-radius: 50%; background: rgba(158,92,63,.10); color: var(--clay); font-family: Montserrat, Inter, sans-serif; font-weight: 900; line-height: 1; font-size: clamp(10px, .86vw, 12px); }
.system-node.is-active span { background: var(--cyan); color: #102326; box-shadow: 0 0 24px rgba(52,214,211,.42); }
.system-node strong { display: block; margin: 0; font-family: Montserrat, Inter, sans-serif; font-size: clamp(14px, 1.04vw, 16px); line-height: 1.06; letter-spacing: -.018em; }
.system-node p { margin: 0; font-size: clamp(11.5px, .78vw, 12.5px); line-height: 1.26; overflow-wrap: normal; }
.system-node.is-active p { color: rgba(255,255,255,.72); }
.system-node:focus-visible { outline: 3px solid rgba(52,214,211,.75); outline-offset: 4px; }
.system-link { align-self: center; height: 2px; border-radius: 999px; background: linear-gradient(90deg, rgba(52,214,211,.18), rgba(52,214,211,.85), rgba(207,148,95,.55)); }

@media (max-width: 900px) {
  .system-map { grid-template-columns: 1fr; }
  .system-link { width: 2px; height: 30px; justify-self: center; background: linear-gradient(180deg, rgba(158,92,63,.18), rgba(52,214,211,.55), rgba(158,92,63,.18)); }
  .system-node { aspect-ratio: auto; min-height: 150px; }
}

/* v03: align Artwork Sensor page with the shared Apeiron product-page system. */
:root { --page-max: 1280px; }

.site-header {
  position: absolute;
  top: 0;
  left: 50%;
  width: min(var(--page-max), calc(100% - 54px));
  min-height: 0;
  transform: translateX(-50%);
  padding: 28px 0 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.brand img { width: 126px; }
.desktop-nav { gap: 28px; font-family: Montserrat, Inter, sans-serif; font-size: 13px; }
.nav-cta { min-height: 40px; padding: 0 17px; }

.hero-section { min-height: min(900px, 100dvh); }
.hero-shell,
.section-shell,
.footer-inner,
.site-map-bottom {
  width: min(var(--page-max), calc(100% - 54px));
}

.hero-shell {
  padding: 150px 0 64px;
  grid-template-columns: minmax(0, 690px) minmax(260px, 340px);
  justify-content: space-between;
}

.hero-copy {
  max-width: 720px;
  padding: clamp(24px, 3vw, 38px);
  border: 1px solid rgba(255,255,255,.20);
  border-radius: 28px;
  background: rgba(10,14,16,.48);
  box-shadow: 0 24px 80px rgba(0,0,0,.20);
  backdrop-filter: blur(14px);
}

.hero-copy h1 { max-width: 12ch; font-size: clamp(48px, 5.3vw, 76px); line-height: .98; }
.hero-copy p { max-width: 610px; margin-top: 20px; font-size: clamp(16px, 1.25vw, 19px); }
.hero-actions { margin-top: 24px; }

.section { padding: clamp(68px, 6vw, 92px) 0; }
.section-heading { margin-bottom: clamp(30px, 4vw, 52px); }
.section-heading h2,
.section-copy h2,
.proof-copy h2 { font-size: clamp(38px, 4.7vw, 64px); }

.asset-card figure { min-height: 360px; }
.asset-card__content { padding: clamp(24px, 3vw, 38px); }
.scenario-card { min-height: 230px; padding: 26px; }

.combined-value-section .proof-layout { align-items: center; }
.combined-value-section .proof-copy h2 { font-size: clamp(42px, 5vw, 68px); }
.combined-value-section .proof-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.combined-value-section .proof-list div { min-height: 116px; }
.combined-value-section .proof-media figure { min-height: 190px; }
.combined-value-section .proof-media__large { min-height: 330px; }

.product-detail-section {
  color: var(--white);
  background: linear-gradient(135deg, #d2b695 0%, #ce9460 100%);
}
.product-detail-layout { display: block; }
.spec-table-panel > h2 { max-width: 900px; margin: 0; font-family: Montserrat, Inter, sans-serif; font-size: clamp(40px, 5vw, 68px); letter-spacing: -.055em; line-height: .96; }
.spec-table-panel > p:not(.eyebrow) { max-width: 760px; color: rgba(255,255,255,.78); font-size: 16px; line-height: 1.6; }
.spec-highlight-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 30px; }
.spec-highlight-grid div { padding: 20px; border: 1px solid rgba(112,65,46,.14); border-radius: 18px; background: #fff; box-shadow: 0 18px 60px rgba(112,65,46,.13); }
.spec-highlight-grid span,
.product-spec-variants figcaption span { display: block; color: rgba(112,65,46,.72); font-size: 11px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.spec-highlight-grid strong { display: block; margin-top: 8px; color: #70412e; font-size: 20px; }
.product-spec-variants { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(18px, 2vw, 26px); margin-top: 24px; }
.product-spec-variants figure { margin: 0; overflow: hidden; border: 1px solid rgba(112,65,46,.14); border-radius: 24px; background: #fff; box-shadow: 0 18px 60px rgba(112,65,46,.13); }
.product-spec-variants img { width: 100%; height: clamp(230px, 22vw, 310px); padding: 0; object-fit: cover; object-position: center; background: #fff; transform: scale(.5); }
.product-spec-variants figcaption { min-height: 78px; padding: 16px 20px; border-top: 1px solid rgba(112,65,46,.13); background: rgba(248,245,240,.86); }
.product-spec-variants figcaption strong { display: block; margin-top: 7px; color: #70412e; line-height: 1.4; }
.spec-table-wrap { margin-top: 24px; overflow: hidden; border: 1px solid rgba(112,65,46,.14); border-radius: 24px; background: #fff; box-shadow: 0 18px 60px rgba(112,65,46,.13); }
.spec-table { width: 100%; border-collapse: collapse; color: #3d3630; }
.spec-table caption { padding: 18px 22px; color: #70412e; background: rgba(248,245,240,.9); text-align: left; font-weight: 900; }
.spec-table th,
.spec-table td { padding: 15px 22px; border-top: 1px solid rgba(112,65,46,.13); text-align: left; line-height: 1.45; }
.spec-table th { width: 34%; color: rgba(112,65,46,.82); background: rgba(248,245,240,.72); font-size: 13px; text-transform: uppercase; letter-spacing: .05em; }
.spec-table td { color: rgba(61,54,48,.82); font-weight: 650; }
.spec-table tr:nth-child(even) th,
.spec-table tr:nth-child(even) td { background: rgba(248,245,240,.56); }

@media (max-width: 980px) {
  .site-header { width: min(100% - 34px, var(--page-max)); }
  .hero-shell,
  .section-shell,
  .footer-inner,
  .site-map-bottom { width: min(100% - 34px, var(--page-max)); }
  .hero-section { min-height: 820px; }
  .hero-shell { padding-top: 126px; }
  .hero-panel { display: none; }
  .combined-value-section .proof-list { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-header { top: 0; width: calc(100% - 28px); padding-top: 18px; }
  .hero-shell,
  .section-shell,
  .footer-inner,
  .site-map-bottom { width: calc(100% - 28px); }
  .hero-section { min-height: 760px; }
  .hero-shell { padding: 104px 0 42px; }
  .hero-copy { padding: 22px; border-radius: 22px; }
  .hero-copy h1 { font-size: clamp(38px, 12vw, 50px); }
  .spec-highlight-grid,
  .product-spec-variants { grid-template-columns: 1fr; }
  .spec-table,
  .spec-table tbody,
  .spec-table tr,
  .spec-table th,
  .spec-table td { display: block; width: 100%; }
  .spec-table th { padding-bottom: 5px; }
  .spec-table td { padding-top: 5px; border-top: 0; }
}

/* v04 exact shared desktop geometry from the approved product pages. */
:root { --page-max: 1080px; }

@media (min-width: 1024px) {
  body {
    width: 111.111%;
    margin-left: -5.5555%;
    zoom: .9;
    overflow-x: hidden;
  }
}

.site-header,
.hero-shell,
.section-shell,
.footer-inner,
.site-map-bottom {
  width: min(1080px, calc(100% - 72px));
}

.site-header {
  grid-template-columns: auto 1fr;
  padding-top: 30px;
  gap: 28px;
}

.brand img {
  width: auto;
  height: 46px;
  filter: brightness(0) invert(1) brightness(1.22) drop-shadow(0 8px 20px rgba(0,0,0,.22));
}

.desktop-nav.nav-links {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  background: rgba(8,11,13,.24);
  color: rgba(255,255,255,.82);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 34px rgba(0,0,0,.14);
}

.desktop-nav.nav-links > a,
.nav-dropdown__trigger {
  padding: 7px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.nav-dropdown { position: relative; }
.nav-dropdown__trigger::after { content: "▾"; margin-left: 6px; font-size: 10px; }
.nav-dropdown.is-active > .nav-dropdown__trigger { background: rgba(255,255,255,.10); color: var(--cream); }
.nav-dropdown__panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  z-index: 30;
  width: 290px;
  padding: 10px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 18px;
  background: rgba(255,250,246,.96);
  box-shadow: 0 24px 70px rgba(0,0,0,.24);
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity .2s ease, transform .2s ease;
}
.nav-dropdown:hover .nav-dropdown__panel,
.nav-dropdown:focus-within .nav-dropdown__panel { opacity: 1; pointer-events: auto; transform: translate(-50%, 0); }
.nav-dropdown__panel a { display: grid; gap: 3px; padding: 12px 14px; border-radius: 12px; color: var(--clay-dark); }
.nav-dropdown__panel a:hover,
.nav-dropdown__panel a[aria-current="page"] { background: rgba(158,92,63,.10); }
.nav-dropdown__panel strong { font-size: 13px; }
.nav-dropdown__panel span { color: rgba(42,46,49,.68); font-size: 12px; font-weight: 600; }

.hero-section {
  min-height: 760px;
  height: 100vh;
  max-height: 980px;
}

.hero-shell {
  min-height: calc(100svh - 92px);
  padding: 158px 0 40px;
  grid-template-columns: minmax(0, 540px) 1fr;
  gap: 0;
  align-items: start;
}

.hero-copy {
  justify-self: start;
  width: min(520px, 100%);
  max-width: 520px;
  aspect-ratio: 1 / 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: clamp(11px, 1.35vw, 18px);
  padding: clamp(28px, 3.3vw, 45px) clamp(18px, 2.35vw, 28px) clamp(20px, 2.45vw, 32px);
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(255,255,255,.18), rgba(255,255,255,.07));
  border-color: rgba(255,255,255,.20);
  box-shadow: 0 20px 68px rgba(0,0,0,.22);
  backdrop-filter: blur(18px);
}

.hero-copy .eyebrow { margin: 0; padding: 7px 10px; width: fit-content; font-size: 10px; letter-spacing: .10em; }
.hero-copy h1 { max-width: none; font-size: clamp(31px, 3.25vw, 50px); line-height: .96; letter-spacing: -.055em; }
.hero-copy p { margin: 0; max-width: 395px; font-size: clamp(13px, .95vw, 15px); line-height: 1.44; }
.hero-actions { margin-top: 2px; gap: 10px; }
.hero-copy .button { min-height: 38px; padding: 9px 13px; font-size: 12px; }
.hero-panel { display: none; }

.section { padding: clamp(74px, 7.5vw, 108px) 0; }
.section-heading { max-width: 900px; margin-left: auto; margin-right: auto; text-align: center; }
.section-heading h2,
.section-copy h2,
.proof-copy h2 { font-size: clamp(38px, 4.6vw, 60px); }
.section-heading > p:last-child { max-width: 720px; margin-left: auto; margin-right: auto; }

.asset-card figure { min-height: 300px; }
.scenario-card { min-height: 200px; }
.combined-value-section .proof-copy h2 { font-size: clamp(38px, 4.6vw, 60px); }
.combined-value-section .proof-media__large { min-height: 280px; }
.combined-value-section .proof-media figure { min-height: 165px; }
.phone-stack { min-height: 500px; }

.product-detail-section .section-shell,
.product-detail-section .product-detail-layout,
.product-detail-section .spec-table-panel {
  width: min(1080px, calc(100% - 72px));
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}
.product-detail-section .product-detail-layout,
.product-detail-section .spec-table-panel { width: 100%; }
.spec-table-panel > h2 { font-size: clamp(38px, 4.6vw, 60px); }
.product-spec-variants img { height: clamp(205px, 18vw, 252px); }

@media (max-width: 980px) {
  .site-header,
  .hero-shell,
  .section-shell,
  .footer-inner,
  .site-map-bottom { width: min(100% - 40px, 720px); }
  .site-header { grid-template-columns: auto auto; }
  .desktop-nav.nav-links { display: none; }
  .hero-shell { grid-template-columns: 1fr; min-height: 0; padding: 118px 0 56px; }
  .hero-copy { width: 100%; max-width: 520px; aspect-ratio: auto; }
}

@media (max-width: 640px) {
  .site-header,
  .hero-shell,
  .section-shell,
  .footer-inner,
  .site-map-bottom,
  .product-detail-section .section-shell,
  .product-detail-section .product-detail-layout,
  .product-detail-section .spec-table-panel { width: calc(100% - 32px); }
  .brand img { height: 38px; }
  .hero-copy h1 { font-size: clamp(30px, 8.2vw, 34px); line-height: 1.01; }
}

/* v05 Kevin review: shared section labels and compact pure-white product cards. */
.section .eyebrow,
.section .eyebrow-dark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  min-height: 30px;
  margin: 0 0 14px;
  padding: 7px 13px;
  border: 1px solid rgba(112,65,46,.16);
  border-radius: 999px;
  background: rgba(255,255,255,.50);
  color: #35241d;
  font-size: 10px;
  line-height: 1;
  letter-spacing: .10em;
  box-shadow: 0 8px 24px rgba(112,65,46,.05);
}

.section .eyebrow::before,
.section .eyebrow-dark::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.section-heading .eyebrow,
.section-heading .eyebrow-dark { margin-left: auto; margin-right: auto; }

.section--dark .eyebrow,
.section--dark .eyebrow-dark,
.product-detail-section .eyebrow,
.product-detail-section .eyebrow-dark {
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.10);
  color: var(--white);
}

.product-pair {
  width: 70%;
  margin-left: auto;
  margin-right: auto;
  gap: 14px;
}

.asset-card,
.asset-card--dark {
  border: 1px solid #ffffff;
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 18px 54px rgba(112,65,46,.08);
}

.asset-card figure {
  min-height: 210px;
  aspect-ratio: 1.18;
  background: #ffffff;
}

.asset-card__content { padding: clamp(17px, 2vw, 25px); }
.asset-card__content > span { width: 25px; height: 25px; font-size: 9px; }
.asset-card h3 { margin: 13px 0 8px; font-size: clamp(20px, 2.1vw, 28px); }
.asset-card p,
.asset-card--dark p { color: var(--muted); font-size: 13px; line-height: 1.55; }
.asset-card ul { margin-top: 15px; gap: 7px; }
.asset-card li { padding-left: 14px; font-size: 12px; }
.asset-card li::before { width: 5px; height: 5px; }

.asset-card:nth-child(2) figure img { object-position: center; }

@media (max-width: 980px) {
  .product-pair { width: min(100%, 640px); }
}

@media (max-width: 640px) {
  .product-pair { width: 100%; }
  .asset-card figure { min-height: 0; }
}

/* v06 light value section with numbered points and one portrait product image. */
.combined-value-section {
  color: var(--ink);
  background: linear-gradient(180deg, #fffaf5 0%, #f7f1ea 100%);
}

/* Section 4 background shared with Sections 2, 3, 5 and 7. */
#products,
#scenarios,
.use-case-section,
#app-hub {
  background: linear-gradient(180deg, #fffaf5 0%, #f7f1ea 100%);
}

.combined-value-section .proof-layout {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 390px);
  gap: clamp(48px, 7vw, 92px);
  align-items: center;
}

.combined-value-section .eyebrow {
  border-color: rgba(112,65,46,.16);
  background: rgba(255,255,255,.66);
  color: #35241d !important;
}

.combined-value-section .proof-copy h2 { color: var(--ink); }
.combined-value-section .proof-copy > p:not(.eyebrow) { color: var(--muted); }

.combined-value-section .proof-list {
  counter-reset: artwork-benefit;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.combined-value-section .proof-list div {
  counter-increment: artwork-benefit;
  position: relative;
  min-height: 138px;
  padding: 19px 18px 18px 58px;
  border: 1px solid rgba(112,65,46,.14);
  border-radius: 18px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 16px 46px rgba(112,65,46,.07);
}

.combined-value-section .proof-list div::before {
  content: counter(artwork-benefit, decimal-leading-zero);
  position: absolute;
  top: 17px;
  left: 16px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--cyan);
  color: #071112;
  font-size: 10px;
  font-weight: 900;
}

.combined-value-section .proof-list strong { color: var(--ink); }
.combined-value-section .proof-list span { color: var(--muted); font-size: 13px; line-height: 1.48; }

.combined-value-section .proof-media--portrait {
  display: block;
  width: 100%;
  max-width: 390px;
  justify-self: end;
}

.combined-value-section .proof-media--portrait figure {
  width: 100%;
  min-height: 0;
  aspect-ratio: 3 / 4;
  border: 8px solid #ffffff;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 28px 80px rgba(112,65,46,.15);
}

.combined-value-section .proof-media--portrait img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transform: none;
}

/* v13: two-card artwork stack and visible light-section label. */
.combined-value-section .proof-media--stack {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding: 0 0 32px;
}

.combined-value-section .proof-media--stack .portrait-card {
  position: relative;
  width: 88%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  transition: transform .45s cubic-bezier(.2,.75,.25,1), box-shadow .45s ease;
  will-change: transform;
}

.combined-value-section .proof-media--stack .portrait-card--painting {
  z-index: 2;
  align-self: flex-start;
  transform: translateY(-20px) rotate(-1.2deg);
}

.combined-value-section .proof-media--stack .portrait-card--sculpture {
  z-index: 1;
  margin-top: -92px;
  transform: translateX(20px) rotate(1.2deg);
}

.combined-value-section .proof-media--stack .portrait-card--sculpture img {
  object-fit: cover;
  object-position: center bottom;
}

.combined-value-section .proof-media--stack .portrait-card--painting:hover {
  z-index: 3;
  transform: translate(-8px, -30px) rotate(-2deg);
  box-shadow: 0 34px 90px rgba(112,65,46,.22);
}

.combined-value-section .proof-media--stack .portrait-card--sculpture:hover {
  z-index: 3;
  transform: translate(28px, 10px) rotate(2deg);
  box-shadow: 0 34px 90px rgba(112,65,46,.22);
}

@media (prefers-reduced-motion: reduce) {
  .combined-value-section .proof-media--stack .portrait-card { transition: none; }
}

@media (max-width: 980px) {
  .combined-value-section .proof-layout { grid-template-columns: 1fr; }
  .combined-value-section .proof-media--portrait { justify-self: center; }
}

@media (max-width: 640px) {
  .combined-value-section .proof-list { grid-template-columns: 1fr; }
  .combined-value-section .proof-list div { min-height: 0; }
  .combined-value-section .proof-media--portrait { max-width: 330px; }
  .combined-value-section .proof-media--stack .portrait-card { width: 86%; }
  .combined-value-section .proof-media--stack .portrait-card--sculpture { margin-top: -72px; transform: translateX(12px) rotate(1.2deg); }
}

/* v07 supplied hero image, lighter image veil, and shared product-page quick navigation. */
.hero-bg img {
  object-position: center center;
  filter: saturate(.96) contrast(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(12,13,14,.44) 0%, rgba(12,13,14,.20) 46%, rgba(12,13,14,.06) 100%),
    linear-gradient(0deg, rgba(12,13,14,.30), rgba(12,13,14,.04) 54%);
}

.page-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  overflow-x: auto;
  border-bottom: 1px solid rgba(112,65,46,.10);
  background: rgba(255,250,246,.88);
  box-shadow: 0 12px 40px rgba(112,65,46,.08);
  backdrop-filter: blur(18px);
  scrollbar-width: none;
}

.page-nav::-webkit-scrollbar { display: none; }

.page-nav a {
  flex: 0 0 auto;
  padding: 10px 14px;
  border: 1px solid rgba(158,92,63,.13);
  border-radius: 999px;
  background: rgba(255,255,255,.58);
  color: rgba(14,17,19,.68);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-nav a:hover,
.page-nav a:focus-visible {
  border-color: #121719;
  background: #121719;
  color: #ffffff;
}

.product-pair .asset-card:first-child figure img {
  object-position: 58% center;
}

@media (max-width: 760px) {
  .page-nav { justify-content: flex-start; }
  .page-nav a { padding: 9px 12px; font-size: 12px; }

  /* Mobile-only: keep the quick navigation focused on section links. */
  .asset-specialty-page .page-nav .page-nav__logo { display: none; }

  /* Mobile-only: let the hero image remain unobstructed behind the copy. */
  .asset-specialty-page .product-hero-panel {
    border: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  /* JS updates this value over the first 120px of scrolling. */
  .js .asset-specialty-page .product-hero-panel.reveal.is-visible {
    opacity: var(--mobile-hero-opacity, 1);
    transition: none;
    will-change: opacity;
  }

  .js .asset-specialty-page .product-hero-panel.is-mobile-faded {
    pointer-events: none;
  }
}

/* v09 protection-scenario feature image and aligned card titles. */
.scenario-feature-image {
  width: min(820px, 86%);
  margin: 0 auto clamp(34px, 4vw, 52px);
  overflow: hidden;
  border: 8px solid #ffffff;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(112,65,46,.12);
}

.scenario-feature-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.scenario-card h3 {
  min-height: 2.1em;
  margin: 22px 0 12px;
}

/* v21: exact Door & Window Sensor specification structure and sizing. */
.product-detail-section .spec-table-panel > h2 {
  max-width: 760px;
  margin-bottom: 10px;
  font-size: clamp(32px, 3vw, 48px);
  line-height: .98;
}

.product-detail-section .spec-table-panel > p:not(.eyebrow):not(.eyebrow-dark) {
  max-width: 760px;
  font-size: 14px;
  line-height: 1.5;
}

.product-detail-section .spec-highlight-grid {
  gap: 10px;
  margin: 14px 0 0;
}

.product-detail-section .spec-highlight-grid div {
  padding: 10px 12px 9px;
  border-radius: 12px;
}

.product-detail-section .spec-highlight-grid span {
  margin-bottom: 7px;
  font-size: 11px;
  letter-spacing: .09em;
}

.product-detail-section .spec-highlight-grid strong {
  margin-top: 0;
  font-family: Montserrat, Inter, sans-serif;
  font-size: 15px;
  letter-spacing: -.02em;
  line-height: 1.15;
}

.product-detail-section .product-spec-variants {
  gap: clamp(18px, 2vw, 26px);
  margin: 18px 0 16px;
}

.product-detail-section .product-spec-variants figure {
  aspect-ratio: 1.82 / 1;
  min-height: 0;
  border-radius: 16px;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
}

.product-detail-section .product-spec-variants img {
  width: 100%;
  height: 100%;
  min-height: clamp(190px, 18vw, 252px);
  padding: clamp(28px, 3.6vw, 48px);
  object-fit: contain;
  transform: none;
}

.product-detail-section .product-spec-variants figcaption {
  min-height: 64px;
  padding: 10px 13px 12px;
}

.product-detail-section .product-spec-variants .spec-caption--three-lines {
  align-items: flex-start;
  flex-direction: column;
  gap: 5px;
}

.product-detail-section .product-spec-variants figcaption span {
  font-family: Montserrat, Inter, sans-serif;
  font-size: 12px;
  letter-spacing: .08em;
}

.product-detail-section .product-spec-variants figcaption strong {
  margin-top: 0;
  font-size: 13px;
  line-height: 1.35;
}

.product-detail-section .spec-table-wrap {
  margin-top: 0;
  overflow-x: auto;
  border-radius: 14px;
  box-shadow: none;
}

.product-detail-section .spec-table {
  table-layout: auto;
  min-width: 0;
}

.product-detail-section .spec-table caption {
  padding: 10px 14px;
  font-family: Montserrat, Inter, sans-serif;
  font-size: 12px;
  letter-spacing: .08em;
}

.product-detail-section .spec-table th,
.product-detail-section .spec-table td {
  padding: 9px 20px;
  vertical-align: middle;
  white-space: nowrap;
}

.product-detail-section .spec-table th {
  width: 36%;
  font-size: 11px;
  letter-spacing: .045em;
}

.product-detail-section .spec-table td {
  font-size: 13px;
  font-weight: 800;
  line-height: 1.45;
}

@media (max-width: 640px) {
  .scenario-feature-image { width: 100%; border-width: 5px; border-radius: 22px; }
  .scenario-feature-image img { aspect-ratio: 4 / 3; }

  .product-detail-section .product-spec-variants figure { aspect-ratio: auto; }
  .product-detail-section .product-spec-variants img { min-height: 140px; }
  .product-detail-section .spec-table { min-width: 680px; }
}

/* v25 cascade lock: exact Door & Window first-message styling. */
.section .eyebrow,
.section .eyebrow-dark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  min-height: 0;
  margin: 0 0 18px;
  padding: 9px 14px;
  border-radius: 999px;
  font-family: Montserrat, Inter, sans-serif;
  font-size: 12px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: .105em;
  text-transform: uppercase;
  box-shadow: none;
}

.section .eyebrow {
  border: 1px solid rgba(253,230,214,.22);
  background: rgba(253,230,214,.08);
  color: var(--cream);
  backdrop-filter: blur(14px);
}

.section .eyebrow-dark {
  border: 1px solid rgba(158,92,63,.15);
  background: rgba(158,92,63,.08);
  color: var(--clay-dark);
}

.section .eyebrow::before,
.section .eyebrow-dark::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(52,214,211,.9);
}

.section--dark .eyebrow,
.section--dark .eyebrow-dark,
.product-detail-section .eyebrow,
.product-detail-section .eyebrow-dark {
  color: rgba(255,250,246,.90);
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.18);
}