:root {
  --navy-950: #061a3b;
  --navy-900: #082654;
  --navy-800: #103b77;
  --blue-600: #255fb9;
  --ice-100: #eff5fc;
  --paper: #f5f2ec;
  --white: #fff;
  --ink: #071b3c;
  --muted: #52627a;
  --line: rgba(7, 27, 60, .16);
  --blue-line: rgba(111, 159, 224, .38);
  --content: min(1180px, calc(100vw - 64px));
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --radius: 16px;
}

* { box-sizing: border-box; }

html {
  color-scheme: light;
  scroll-behavior: smooth;
  scrollbar-color: #6d86ad #e7edf6;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", Avenir, "Century Gothic", "Trebuchet MS", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body::selection { color: #fff; background: var(--blue-600); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .28em; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid #6ca7ff;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 12000;
  padding: 10px 16px;
  color: var(--ink);
  background: #fff;
  border-radius: 8px;
  transform: translateY(-150%);
  transition: transform .25s var(--ease-out);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: 88px;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  gap: 28px;
  padding: 14px max(28px, calc((100vw - 1370px) / 2));
  color: var(--ink);
  background: rgba(255, 255, 255, .89);
  border-bottom: 1px solid rgba(9, 39, 84, .09);
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
}

.brand { width: clamp(176px, 17vw, 234px); text-decoration: none; }
.brand img { width: 100%; height: auto; }

.main-nav { display: flex; align-items: center; justify-content: center; gap: 34px; }
.main-nav a,
.mobile-nav a {
  position: relative;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -8px;
  height: 1px;
  background: currentColor;
  transition: right .35s var(--ease-out);
}

.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after { right: 0; }

.product-menu { position: relative; }
.product-menu__trigger {
  position: relative;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 0;
  color: inherit;
  background: transparent;
  border: 0;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.product-menu__trigger::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 1px;
  height: 1px;
  background: currentColor;
  transition: right .35s var(--ease-out);
}
.product-menu__trigger.is-current::after,
.product-menu.is-open > .product-menu__trigger::after,
.product-menu__trigger:hover::after { right: 0; }
.product-menu__trigger svg { width: 11px; height: 8px; transition: transform .3s var(--ease-out); }
.product-menu.is-open > .product-menu__trigger svg { transform: rotate(180deg); }
.product-menu__panel {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  width: min(440px, calc(100vw - 40px));
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  background: rgba(255,255,255,.98);
  border: 1px solid rgba(7,27,60,.12);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(3,22,53,.18);
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
  transform: translateX(-42%);
}
.product-menu__panel[hidden],
.mobile-products__panel[hidden] { display: none !important; }
.main-nav .product-menu__panel a {
  min-height: 52px;
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  color: var(--ink);
  border-radius: 10px;
  transition: color .2s ease, background .2s ease, transform .2s var(--ease-out);
}
.main-nav .product-menu__panel a::after { display: none; }
.product-menu__panel a span { color: #58729a; font-size: 10px; font-variant-numeric: tabular-nums; letter-spacing: .08em; }
.product-menu__panel a strong { font-size: 13px; }
.main-nav .product-menu__panel a:hover,
.main-nav .product-menu__panel a:focus-visible,
.main-nav .product-menu__panel a[aria-current="page"] { color: #fff; background: var(--navy-900); transform: translateY(-1px); }
.main-nav .product-menu__panel a:hover span,
.main-nav .product-menu__panel a:focus-visible span,
.main-nav .product-menu__panel a[aria-current="page"] span { color: #bcd2ef; }
.mobile-products__trigger {
  width: 100%;
  min-height: 52px;
  padding: 14px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
  text-align: left;
}
.mobile-products__trigger svg { width: 12px; height: 8px; }
.mobile-products__panel { padding: 5px 0 8px 18px; display: grid; grid-template-columns: 1fr; border-bottom: 1px solid var(--line); background: #f5f8fc; }
.mobile-products__panel a { min-height: 44px; display: flex; align-items: center; padding: 10px 14px !important; border: 0 !important; color: #344c70; font-size: 13px; }
.mobile-products__panel strong { font-weight: 700; }

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 214px;
  min-height: 56px;
  padding: 12px 20px;
  border: 1px solid rgba(21, 70, 137, .24);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  transition: color .3s ease, background .3s ease, transform .3s var(--ease-out);
}

.header-cta:hover { color: #fff; background: var(--navy-900); transform: translateY(-2px); }
.menu-toggle, .mobile-nav { display: none; }

.product-hero {
  position: relative;
  min-height: calc(100svh - 88px);
  display: grid;
  align-items: end;
  color: #fff;
  background: var(--navy-950);
  overflow: hidden;
  view-transition-name: product-hero;
}

.product-hero__media,
.product-hero__media::after {
  position: absolute;
  inset: 0;
}

.product-hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: var(--hero-position, center); }
.product-hero__media::after {
  content: "";
  background:
    linear-gradient(90deg, rgba(4, 20, 48, .93) 0%, rgba(6, 31, 69, .73) 43%, rgba(5, 25, 57, .1) 74%),
    linear-gradient(0deg, rgba(5, 24, 55, .84) 0%, transparent 54%);
}

.product-hero__inner {
  position: relative;
  z-index: 1;
  width: var(--content);
  margin: 0 auto;
  padding: clamp(80px, 12vh, 150px) 0 54px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 360px);
  align-items: end;
  gap: clamp(48px, 8vw, 120px);
}

.product-hero__copy { max-width: 720px; }
.product-hero__copy h1 {
  margin: 0;
  max-width: 10ch;
  font-size: clamp(4rem, 9vw, 6rem);
  line-height: .91;
  letter-spacing: -.04em;
  font-weight: 800;
  text-wrap: balance;
}

.product-hero__promise {
  margin: 28px 0 0;
  max-width: 18ch;
  font-size: clamp(1.55rem, 3vw, 2.55rem);
  line-height: 1.12;
  letter-spacing: -.03em;
  font-weight: 600;
  text-wrap: balance;
}

.product-hero__lead {
  margin: 24px 0 0;
  max-width: 58ch;
  color: #d8e7fa;
  font-size: clamp(1rem, 1.6vw, 1.18rem);
}

.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 34px; }
.primary-action,
.text-action {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 58px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.primary-action { min-width: 224px; color: var(--ink); background: #fff; box-shadow: 0 14px 38px rgba(1, 14, 37, .24); }
.primary-action span { display: grid; place-items: center; width: 38px; height: 38px; margin-right: -10px; color: #fff; background: var(--blue-600); border-radius: 50%; }
.text-action { min-width: auto; padding-inline: 8px; border-radius: 0; border-bottom: 1px solid rgba(255,255,255,.5); }
.primary-action:hover { transform: translateY(-3px); }
.text-action:hover { border-bottom-color: #fff; }

.product-hero__facts {
  margin: 0;
  padding: 26px;
  display: grid;
  gap: 18px;
  background: rgba(228, 240, 255, .12);
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: var(--radius);
  box-shadow: 0 28px 60px rgba(0, 13, 36, .22);
  backdrop-filter: blur(16px) saturate(125%);
  -webkit-backdrop-filter: blur(16px) saturate(125%);
}

.product-hero__facts div { padding-top: 16px; border-top: 1px solid rgba(255,255,255,.2); }
.product-hero__facts div:first-child { padding-top: 0; border-top: 0; }
.product-hero__facts dt { color: #afc7ea; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.product-hero__facts dd { margin: 3px 0 0; color: #fff; font-size: 16px; font-weight: 700; }

.product-switcher {
  position: relative;
  z-index: 3;
  display: flex;
  gap: 4px;
  padding: 12px max(24px, calc((100vw - 1180px) / 2));
  overflow-x: auto;
  color: #fff;
  background: var(--navy-950);
  scrollbar-width: none;
}
.product-switcher::-webkit-scrollbar { display: none; }
.product-switcher a {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #bcd1ee;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.product-switcher a:hover { color: #fff; border-color: rgba(255,255,255,.22); }
.product-switcher a[aria-current="page"] { color: var(--ink); background: #fff; }

.section-shell { width: var(--content); margin-inline: auto; }
.section-title { margin: 0; max-width: 19ch; font-size: clamp(2.4rem, 5vw, 4.8rem); line-height: .98; letter-spacing: -.04em; text-wrap: balance; }
.section-intro { margin: 22px 0 0; max-width: 66ch; color: var(--muted); font-size: 1.06rem; }

.benefits { padding: clamp(92px, 11vw, 150px) 0; background: #fff; }
.benefits__top { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 80px; }
.benefits__top .section-intro { margin: 0; }
.benefit-list { margin: 72px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; border-top: 1px solid var(--line); }
.benefit-list li { padding: 28px 36px 8px 0; border-right: 1px solid var(--line); }
.benefit-list li + li { padding-left: 36px; }
.benefit-list li:last-child { border-right: 0; }
.benefit-list strong { display: block; max-width: 16ch; font-size: 1.28rem; line-height: 1.2; }
.benefit-list p { margin: 12px 0 0; max-width: 36ch; color: var(--muted); }

.product-demo { padding: clamp(72px, 10vw, 138px) 0; color: #fff; background: var(--navy-900); }
.product-demo__layout { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr); gap: clamp(48px, 8vw, 110px); align-items: center; }
.product-demo__copy h2 { margin: 0; max-width: 12ch; font-size: clamp(2.6rem, 5vw, 4.9rem); line-height: .96; letter-spacing: -.04em; text-wrap: balance; }
.product-demo__copy > p { margin: 24px 0 42px; max-width: 48ch; color: #c2d4ec; }
.product-demo__copy label { display: block; margin-bottom: 12px; color: #fff; font-size: 13px; font-weight: 800; }
.product-demo__control { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 18px; }
.product-demo__control input { width: 100%; height: 32px; margin: 0; accent-color: #fff; cursor: ew-resize; }
.product-demo__control output { min-width: 120px; color: #c4d7ef; font-size: 12px; text-align: right; }
.product-demo__stage { --demo-progress: 50%; --demo-negative-34: -17%; --demo-positive-34: 17%; --demo-negative-72: -36%; --demo-positive-72: 36%; --demo-tende-width: 58%; --demo-shadow-width: 53%; --demo-angle: 0deg; position: relative; min-height: 610px; overflow: hidden; border-radius: var(--radius); background: #0b2f64; box-shadow: 0 34px 70px rgba(0, 10, 29, .27); isolation: isolate; }
.product-demo__stage > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.product-demo__stage::after { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; box-shadow: inset 0 0 0 1px rgba(255,255,255,.22); border-radius: inherit; }
.product-demo__mechanism { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.product-demo__mechanism span { position: absolute; display: block; }
.product-demo__hint { position: absolute; z-index: 3; left: 22px; bottom: 22px; padding: 9px 12px; color: #fff; background: rgba(6, 26, 59, .78); border-radius: 8px; font-size: 11px; backdrop-filter: blur(10px); }

body[data-product="serramenti"] .product-demo__mechanism::before,
body[data-product="serramenti"] .product-demo__mechanism::after,
body[data-product="persiane"] .product-demo__mechanism::before,
body[data-product="persiane"] .product-demo__mechanism::after {
  content: "";
  position: absolute;
  top: 7%;
  bottom: 7%;
  width: 47%;
  border: 12px solid rgba(245, 248, 252, .92);
  background: rgba(25, 63, 104, .17);
  box-shadow: inset 0 0 0 1px rgba(8, 38, 82, .28);
  transition: transform .12s linear;
}
body[data-product="serramenti"] .product-demo__mechanism::before { left: 3%; transform: translateX(var(--demo-negative-34)); }
body[data-product="serramenti"] .product-demo__mechanism::after { right: 3%; transform: translateX(var(--demo-positive-34)); }

body[data-product="tende-da-sole"] .product-demo__mechanism::before {
  content: "";
  position: absolute;
  top: 4%;
  right: 4%;
  width: var(--demo-tende-width);
  height: 45%;
  background: rgba(226, 238, 251, .38);
  border: 1px solid rgba(255,255,255,.78);
  box-shadow: 0 28px 46px rgba(1, 15, 35, .24), inset 0 1px 0 rgba(255,255,255,.48);
  backdrop-filter: blur(2px) brightness(1.08);
  clip-path: polygon(16% 0, 100% 0, 83% 100%, 0 100%);
  transform-origin: right top;
  transition: width .12s linear;
}
body[data-product="tende-da-sole"] .product-demo__mechanism::after {
  content: "";
  position: absolute;
  inset: 0;
  width: var(--demo-shadow-width);
  background: rgba(3, 21, 48, .16);
  transition: width .12s linear;
}

body[data-product="persiane"] .product-demo__mechanism::before,
body[data-product="persiane"] .product-demo__mechanism::after {
  width: 48%;
  border-width: 8px;
  background: repeating-linear-gradient(0deg, #317fb5 0 10px, #236893 10px 16px);
}
body[data-product="persiane"] .product-demo__mechanism::before { left: 2%; transform: translateX(var(--demo-negative-72)); }
body[data-product="persiane"] .product-demo__mechanism::after { right: 2%; transform: translateX(var(--demo-positive-72)); }

body[data-product="rolladen"] .product-demo__mechanism::before {
  content: "";
  position: absolute;
  inset: 0 6% auto;
  height: var(--demo-progress);
  min-height: 28px;
  background: repeating-linear-gradient(0deg, #e7e9e8 0 15px, #b9bec2 15px 17px);
  box-shadow: 0 18px 30px rgba(3, 18, 42, .24);
  transition: height .12s linear;
}

body[data-product="zanzariere"] .product-demo__mechanism::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--demo-progress);
  background-color: rgba(13, 30, 43, .24);
  background-image: repeating-linear-gradient(0deg, rgba(224,236,240,.34) 0 1px, transparent 1px 5px), repeating-linear-gradient(90deg, rgba(224,236,240,.34) 0 1px, transparent 1px 5px);
  border-right: 5px solid rgba(234, 241, 244, .92);
  transition: width .12s linear;
}

body[data-product="lamelle"] .product-demo__mechanism { display: grid; grid-template-rows: repeat(12, 1fr); gap: 2px; padding: 5% 4%; perspective: 900px; }
body[data-product="lamelle"] .product-demo__mechanism span { position: relative; width: 100%; height: 100%; background: linear-gradient(180deg, #f2f3ef, #aeb9c3); border-top: 1px solid rgba(255,255,255,.7); transform: rotateX(var(--demo-angle)); transform-origin: center; box-shadow: 0 6px 12px rgba(1,15,35,.18); transition: transform .12s linear; }

.mechanism { padding: clamp(92px, 12vw, 170px) 0; background: var(--paper); }
.mechanism__layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(330px, .85fr); gap: clamp(56px, 9vw, 130px); align-items: center; }
.mechanism__media { position: relative; min-height: 650px; overflow: hidden; border-radius: var(--radius); }
.mechanism__media img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; }
.mechanism__media span { position: absolute; left: 22px; bottom: 22px; max-width: 70%; padding: 10px 14px; color: #fff; background: rgba(6,26,59,.72); border-radius: 8px; font-size: 12px; backdrop-filter: blur(10px); }
.mechanism__copy h2 { margin: 0; font-size: clamp(2.5rem, 4.6vw, 4.4rem); line-height: .98; letter-spacing: -.04em; text-wrap: balance; }
.mechanism__copy > p { margin: 25px 0 0; max-width: 60ch; color: var(--muted); }
.decision-list { margin: 36px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.decision-list li { display: grid; grid-template-columns: 76px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.decision-list span { color: var(--blue-600); font-size: 12px; font-variant-numeric: tabular-nums; }
.decision-list strong { font-size: 1rem; }

.models { padding: clamp(92px, 12vw, 160px) 0; color: #fff; background: var(--navy-950); }
.models .section-title { max-width: 16ch; }
.models__intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 80px; align-items: end; }
.models__intro p { margin: 0; max-width: 59ch; color: #bed0e9; }
.model-stage { margin-top: 72px; display: grid; grid-template-columns: minmax(230px, .36fr) minmax(0, 1fr); gap: 22px; min-height: 630px; }
.model-tabs { display: flex; flex-direction: column; border-top: 1px solid rgba(255,255,255,.2); }
.model-tabs button {
  width: 100%;
  min-height: 72px;
  display: grid;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 8px;
  color: #aebfd7;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(255,255,255,.2);
  text-align: left;
  cursor: pointer;
}
.model-tabs button span:first-child { font-size: 11px; font-variant-numeric: tabular-nums; }
.model-tabs button strong { font-size: 15px; }
.model-tabs button i { font-style: normal; opacity: 0; transform: translateX(-8px); transition: .35s var(--ease-out); }
.model-tabs button:hover,
.model-tabs button[aria-selected="true"] { color: #fff; }
.model-tabs button[aria-selected="true"] i { opacity: 1; transform: translateX(0); }

.model-panels { position: relative; min-width: 0; overflow: hidden; border-radius: var(--radius); background: #0c3167; }
.model-panel { position: absolute; inset: 0; display: grid; grid-template-rows: 1fr auto; visibility: hidden; opacity: 0; transform: scale(1.025); transition: opacity .42s ease, transform .65s var(--ease-out), visibility .42s; }
.model-panel[aria-hidden="false"] { visibility: visible; opacity: 1; transform: scale(1); }
.model-panel img { width: 100%; height: 100%; min-height: 0; object-fit: cover; background: #e8edf2; }
.model-panel--technical img {
  object-fit: contain;
  padding: clamp(54px, 7vw, 96px);
  background: radial-gradient(circle at 52% 40%, #fff 0, #f0f4f8 48%, #dce4ec 100%);
}
.model-panel__caption { position: absolute; left: 24px; right: 24px; bottom: 24px; padding: 20px; background: rgba(5,24,55,.82); border: 1px solid rgba(255,255,255,.18); border-radius: 12px; backdrop-filter: blur(14px); }
.model-panel__caption strong { display: block; font-size: 1.3rem; }
.model-panel__caption p { margin: 6px 0 0; max-width: 62ch; color: #c9d8ec; font-size: 14px; }

.selection { padding: clamp(90px, 11vw, 150px) 0; background: #fff; }
.selection__layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(70px, 10vw, 150px); }
.selection__copy { position: sticky; top: 130px; align-self: start; }
.selection__copy h2 { margin: 0; font-size: clamp(2.5rem, 4.7vw, 4.6rem); line-height: .99; letter-spacing: -.04em; text-wrap: balance; }
.selection__copy p { margin: 24px 0 0; color: var(--muted); }
.selection-steps { margin: 0; padding: 0; list-style: none; counter-reset: choose; border-top: 1px solid var(--line); }
.selection-steps li { counter-increment: choose; display: grid; grid-template-columns: 72px 1fr; gap: 22px; padding: 32px 0; border-bottom: 1px solid var(--line); }
.selection-steps li::before { content: counter(choose, decimal-leading-zero); color: var(--blue-600); font-size: 13px; font-variant-numeric: tabular-nums; }
.selection-steps strong { display: block; font-size: 1.25rem; }
.selection-steps p { margin: 8px 0 0; max-width: 56ch; color: var(--muted); }

.gallery-section { padding: clamp(92px, 11vw, 150px) 0; background: var(--paper); }
.gallery-head { display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.gallery-head p { margin: 0; max-width: 42ch; color: var(--muted); }
.gallery-grid { margin-top: 54px; display: grid; grid-template-columns: 1.35fr .8fr .8fr; grid-template-rows: repeat(2, minmax(260px, 34vw)); gap: 16px; }
.gallery-item { position: relative; padding: 0; overflow: hidden; background: var(--navy-900); border: 0; border-radius: var(--radius); cursor: zoom-in; }
.gallery-item:first-child { grid-row: 1 / span 2; }
.gallery-item:nth-child(2) { grid-column: 2 / span 2; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.gallery-item--technical { background: radial-gradient(circle at 52% 42%, #fff 0, #edf2f6 54%, #d9e2eb 100%); }
.gallery-item--technical img { object-fit: contain; padding: clamp(28px, 4vw, 62px); }
.gallery-item:hover img { transform: scale(1.035); }
.gallery-item span { position: absolute; left: 18px; right: 18px; bottom: 18px; padding: 10px 12px; color: #fff; background: rgba(5,24,55,.74); border-radius: 8px; text-align: left; font-size: 12px; backdrop-filter: blur(10px); }

.lightbox { position: fixed; inset: 0; z-index: 11000; display: grid; place-items: center; padding: 30px; color: #fff; background: rgba(2, 11, 29, .94); }
.lightbox[hidden] { display: none; }
.lightbox__figure { margin: 0; max-width: min(1300px, 92vw); max-height: 88vh; display: grid; gap: 12px; }
.lightbox__figure img { max-height: 78vh; width: auto; margin: auto; border-radius: 12px; }
.lightbox__figure figcaption { text-align: center; color: #c7d7ed; }
.lightbox__close,
.lightbox__nav { position: absolute; width: 48px; height: 48px; display: grid; place-items: center; color: #fff; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.24); border-radius: 50%; cursor: pointer; }
.lightbox__close { top: 24px; right: 24px; }
.lightbox__nav--prev { left: 24px; top: 50%; }
.lightbox__nav--next { right: 24px; top: 50%; }

.proof { padding: clamp(92px, 12vw, 170px) 0; color: #fff; background: var(--navy-900); }
.proof__layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: clamp(50px, 8vw, 110px); align-items: center; }
.proof__media { min-height: 620px; position: relative; overflow: hidden; border-radius: var(--radius); }
.proof__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.proof__copy h2 { margin: 0; font-size: clamp(2.55rem, 5vw, 4.8rem); line-height: .98; letter-spacing: -.04em; text-wrap: balance; }
.proof__copy > p { margin: 24px 0 0; color: #c5d7ee; }
.proof__facts { margin: 38px 0 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.22); }
.proof__facts li { padding: 17px 0; display: grid; grid-template-columns: 110px 1fr; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.22); }
.proof__facts span { color: #a9c3e7; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
.proof__facts strong { font-size: 15px; }

.faq { padding: clamp(92px, 11vw, 150px) 0; background: #fff; }
.faq__layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(70px, 10vw, 150px); }
.faq h2 { margin: 0; font-size: clamp(2.5rem, 4.5vw, 4.2rem); line-height: 1; letter-spacing: -.04em; }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 24px 54px 24px 0; font-weight: 750; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 20px; font-size: 26px; font-weight: 300; transition: transform .35s var(--ease-out); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: -6px 0 24px; max-width: 68ch; color: var(--muted); }

.product-cta { padding: 32px; background: #fff; }
.product-cta__inner { width: min(1370px, 100%); min-height: 580px; margin: auto; padding: clamp(48px, 9vw, 130px); display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: end; color: #fff; background: var(--navy-950); border-radius: 36px; overflow: hidden; position: relative; }
.product-cta__inner::before { content: ""; position: absolute; inset: 0; opacity: .2; background: var(--cta-image) center/cover; }
.product-cta__copy, .product-cta__actions { position: relative; }
.product-cta h2 { margin: 0; max-width: 13ch; font-size: clamp(3rem, 6vw, 5.8rem); line-height: .93; letter-spacing: -.04em; text-wrap: balance; }
.product-cta p { margin: 22px 0 0; max-width: 54ch; color: #c4d7ef; }
.product-cta__actions { display: grid; gap: 12px; min-width: 310px; }
.product-cta__actions a { min-height: 62px; display: flex; align-items: center; justify-content: space-between; padding: 14px 22px; border-radius: 999px; font-weight: 800; text-decoration: none; }
.product-cta__actions a:first-child { color: var(--ink); background: #fff; }
.product-cta__actions a:last-child { border: 1px solid rgba(255,255,255,.38); }

.next-product { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; width: var(--content); margin: 0 auto; padding: 46px 0; text-decoration: none; }
.next-product span { color: var(--muted); font-size: 13px; }
.next-product strong { display: block; margin-top: 4px; font-size: clamp(1.6rem, 3vw, 2.7rem); line-height: 1.1; }
.next-product b { font-size: 2.2rem; font-weight: 400; transition: transform .35s var(--ease-out); }
.next-product:hover b { transform: translateX(8px); }

.site-footer { padding: 64px max(32px, calc((100vw - 1180px) / 2)) 28px; color: #d0ddf0; background: #061a3b; }
.footer-main { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 60px; padding-bottom: 64px; }
.footer-brand img { width: 230px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 34ch; margin: 20px 0 0; color: #9fb6d6; }
.footer-col strong { display: block; margin-bottom: 16px; color: #fff; }
.footer-col a { display: block; width: fit-content; margin: 8px 0; color: #c1d1e6; text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.16); color: #91a9c9; font-size: 12px; }

.reveal { opacity: 1; transform: none; }
.motion-ready .reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .85s var(--ease-out); }
.motion-ready .reveal.is-visible { opacity: 1; transform: none; }

.catalog-hero { padding: clamp(90px, 12vw, 160px) 0 80px; color: #fff; background: var(--navy-900); }
.catalog-hero__layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: end; }
.catalog-hero h1 { margin: 0; max-width: 12ch; font-size: clamp(4rem, 6.5vw, 5.25rem); line-height: .94; letter-spacing: -.04em; }
.catalog-hero p { margin: 25px 0 0; max-width: 58ch; color: #c7d9ef; font-size: 1.1rem; }
.catalog-hero__image { height: min(68vh, 720px); overflow: hidden; border-radius: var(--radius); }
.catalog-hero__image img { width: 100%; height: 100%; object-fit: cover; }
.catalog-list { padding: clamp(90px, 11vw, 150px) 0; background: #fff; }
.catalog-list__head { display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.catalog-list__head p { max-width: 44ch; color: var(--muted); }
.catalog-grid { margin-top: 58px; display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.catalog-card { grid-column: span 4; min-height: 520px; position: relative; display: flex; align-items: end; overflow: hidden; border-radius: var(--radius); color: #fff; background: var(--navy-900); text-decoration: none; }
.catalog-card:nth-child(1), .catalog-card:nth-child(5) { grid-column: span 7; }
.catalog-card:nth-child(2), .catalog-card:nth-child(6) { grid-column: span 5; }
.catalog-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.catalog-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(4,20,48,.92), rgba(4,20,48,.02) 68%); }
.catalog-card__copy { position: relative; z-index: 1; width: 100%; padding: 28px; }
.catalog-card__copy strong { display: block; font-size: clamp(1.7rem, 3vw, 2.7rem); line-height: 1; }
.catalog-card__copy span { display: flex; justify-content: space-between; gap: 20px; margin-top: 12px; color: #d5e2f3; }
.catalog-card:hover img { transform: scale(1.04); }

@media (max-width: 980px) {
  :root { --content: min(100% - 40px, 760px); }
  .site-header { grid-template-columns: 1fr auto; min-height: 78px; padding: 12px 20px; }
  .main-nav, .header-cta { display: none; }
  .menu-toggle { display: grid; place-items: center; width: 48px; height: 48px; padding: 0; background: transparent; border: 1px solid rgba(7,27,60,.2); border-radius: 50%; }
  .menu-toggle span { grid-area: 1/1; width: 19px; height: 1px; background: var(--ink); transition: transform .3s var(--ease-out); }
  .menu-toggle span:first-child { transform: translateY(-4px); }
  .menu-toggle span:last-child { transform: translateY(4px); }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: rotate(-45deg); }
  .mobile-nav { position: fixed; inset: 78px 0 auto; padding: 24px 20px 34px; display: grid; gap: 0; background: rgba(255,255,255,.98); box-shadow: 0 22px 40px rgba(5,24,55,.14); }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a { padding: 16px 4px; border-bottom: 1px solid var(--line); }
  .product-hero { min-height: 820px; }
  .product-hero__inner { grid-template-columns: 1fr; gap: 38px; padding-bottom: 38px; }
  .product-hero__facts { grid-template-columns: repeat(3, 1fr); }
  .benefits__top, .models__intro { grid-template-columns: 1fr; gap: 28px; }
  .benefit-list { grid-template-columns: 1fr; margin-top: 48px; }
  .benefit-list li, .benefit-list li + li { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .mechanism__layout { grid-template-columns: 1fr; }
  .mechanism__media { min-height: 560px; }
  .product-demo__layout { grid-template-columns: 1fr; }
  .product-demo__stage { min-height: 560px; }
  .model-stage { grid-template-columns: 1fr; min-height: 760px; }
  .model-tabs { flex-direction: row; overflow-x: auto; border: 0; scrollbar-width: none; }
  .model-tabs button { flex: 0 0 auto; width: auto; min-width: 180px; border-top: 1px solid rgba(255,255,255,.2); }
  .model-panels { min-height: 640px; }
  .selection__layout, .faq__layout { grid-template-columns: 1fr; gap: 48px; }
  .selection__copy { position: static; }
  .gallery-grid { grid-template-columns: 1.15fr .85fr; grid-template-rows: repeat(2, 330px); }
  .gallery-item:nth-child(2) { grid-column: 2; }
  .gallery-item:nth-child(4) { display: none; }
  .proof__layout { grid-template-columns: 1fr; }
  .proof__media { min-height: 540px; }
  .product-cta__inner { grid-template-columns: 1fr; align-items: end; }
  .product-cta__actions { min-width: 0; width: min(420px, 100%); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .catalog-hero__layout { grid-template-columns: 1fr; }
  .catalog-hero__image { height: 520px; }
}

@media (max-width: 640px) {
  :root { --content: calc(100% - 32px); }
  body { font-size: 15px; }
  .brand { width: 176px; }
  .product-hero { min-height: 760px; }
  .product-hero__media::after { background: linear-gradient(0deg, rgba(4,20,48,.96) 8%, rgba(5,25,57,.58) 70%, rgba(5,25,57,.16)); }
  .product-hero__inner { padding-top: 180px; gap: 28px; }
  .product-hero__copy h1 { font-size: clamp(3.4rem, 17vw, 5.2rem); }
  .product-hero__promise { margin-top: 18px; }
  .product-hero__lead { margin-top: 18px; }
  .hero-actions { margin-top: 26px; }
  .text-action { display: none; }
  .product-hero__facts { grid-template-columns: 1fr; gap: 12px; padding: 18px; }
  .product-hero__facts div { display: grid; grid-template-columns: 100px 1fr; align-items: baseline; gap: 10px; padding-top: 11px; }
  .product-switcher { padding-inline: 16px; }
  .section-title { font-size: clamp(2.5rem, 12vw, 3.7rem); }
  .mechanism__media { min-height: 520px; }
  .model-stage { min-height: 670px; }
  .model-panels { min-height: 550px; }
  .model-panel__caption { left: 12px; right: 12px; bottom: 12px; }
  .selection-steps li { grid-template-columns: 48px 1fr; }
  .gallery-head { display: block; }
  .gallery-head p { margin-top: 20px; }
  .gallery-grid { grid-template-columns: 1fr; grid-template-rows: 480px 280px 280px; }
  .gallery-item:first-child { grid-row: auto; }
  .gallery-item:nth-child(2) { grid-column: auto; }
  .gallery-item:nth-child(4) { display: none; }
  .lightbox { padding: 16px; }
  .lightbox__nav { top: auto; bottom: 24px; }
  .proof__media { min-height: 470px; }
  .proof__facts li { grid-template-columns: 88px 1fr; }
  .product-cta { padding: 16px; }
  .product-cta__inner { min-height: 620px; padding: 34px 24px; border-radius: 24px; }
  .product-cta h2 { font-size: clamp(3rem, 15vw, 4.5rem); }
  .footer-main { grid-template-columns: 1fr; gap: 36px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { display: grid; }
  .catalog-hero { padding: 70px 0 34px; }
  .catalog-hero__layout { gap: 34px; }
  .catalog-hero h1 { max-width: 11ch; font-size: clamp(3.25rem, 13vw, 3.8rem); line-height: .96; }
  .catalog-hero p { margin-top: 18px; }
  .catalog-hero .hero-actions { margin-top: 24px; }
  .catalog-hero__image { height: 320px; }
  .product-demo__copy > p { margin-bottom: 28px; }
  .product-demo__control { grid-template-columns: 1fr; gap: 4px; }
  .product-demo__control output { min-width: 0; text-align: left; }
  .product-demo__stage { min-height: 500px; }
  .catalog-list__head { display: block; }
  .catalog-list__head p { margin-top: 20px; }
  .catalog-grid { display: grid; grid-template-columns: 1fr; }
  .catalog-card, .catalog-card:nth-child(1), .catalog-card:nth-child(2), .catalog-card:nth-child(5), .catalog-card:nth-child(6) { grid-column: auto; min-height: 460px; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header, .product-hero__facts, .model-panel__caption, .gallery-item span { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .site-header { background: #fff; }
  .product-hero__facts, .model-panel__caption, .gallery-item span { background: var(--navy-900); }
}

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