:root {
  --ink: #101820;
  --muted: #5f6b75;
  --paper: #f4f7f9;
  --white: #ffffff;
  --line: #d9e2ea;
  --blue: #155a9f;
  --blue-dark: #0c3158;
  --yellow: #f2b705;
  --red: #d92f2f;
  --shadow: 0 18px 44px rgba(16, 24, 32, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, Arial, sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 226, 234, 0.75);
  backdrop-filter: blur(16px);
  transition: padding 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  padding-block: 9px;
  box-shadow: 0 12px 36px rgba(16, 24, 32, 0.1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  font-weight: 800;
}

.brand img {
  width: 54px;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 5px;
}

.main-nav a {
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--ink);
  background: rgba(21, 90, 159, 0.1);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.page-hero,
.parallax-break {
  position: relative;
  overflow: hidden;
  color: var(--white);
  isolation: isolate;
}

.page-hero {
  min-height: 620px;
  display: flex;
  align-items: flex-end;
  padding: 150px clamp(18px, 5vw, 72px) 92px;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 42%;
  background: linear-gradient(0deg, rgba(16, 24, 32, 0.72), transparent);
}

.parallax-layer {
  position: absolute;
  inset: -18%;
  z-index: -3;
  background-position: center;
  background-size: cover;
  will-change: transform;
}

.hero-bg::after,
.break-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 18, 30, 0.9), rgba(8, 18, 30, 0.55) 48%, rgba(8, 18, 30, 0.1)),
    linear-gradient(0deg, rgba(8, 18, 30, 0.3), rgba(8, 18, 30, 0.05));
}

.steel-grid {
  z-index: -2;
  opacity: 0.46;
  background-image:
    linear-gradient(120deg, rgba(242, 183, 5, 0.26) 0 2px, transparent 2px 128px),
    linear-gradient(35deg, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px 90px);
}

.page-hero-content,
.break-content {
  width: min(900px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 920px;
  margin-bottom: 20px;
  font-size: clamp(46px, 7vw, 88px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.22;
}

.lead {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2vw, 24px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 8px;
  font-weight: 800;
}

.btn.primary {
  background: var(--yellow);
  color: var(--ink);
}

.btn.secondary {
  background: var(--blue);
  color: var(--white);
}

.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--ink);
  color: var(--white);
}

.stats-band div {
  min-height: 116px;
  padding: 24px clamp(18px, 3vw, 42px);
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.stats-band strong {
  display: block;
  color: var(--yellow);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
}

.stats-band span {
  color: rgba(255, 255, 255, 0.74);
  font-weight: 700;
}

.section-block,
.split-section,
.contact-page,
.legal-content {
  padding: clamp(48px, 6vw, 84px) clamp(18px, 5vw, 72px);
  background: var(--white);
}

.section-block:nth-of-type(even),
.split-section:nth-of-type(even) {
  background: var(--paper);
}

.section-heading {
  width: min(900px, 100%);
  margin: 0 auto 34px;
}

.section-heading > p:not(.eyebrow),
.split-section p,
.contact-page p,
.model-card p,
.product-card p {
  color: var(--muted);
}

.product-grid,
.model-grid,
.download-grid,
.feature-grid,
.reference-grid,
.image-gallery {
  width: min(1240px, 100%);
  margin-inline: auto;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.product-card,
.model-card,
.download-column,
.contact-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(16, 24, 32, 0.08);
}

.product-card img,
.model-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.product-card > div,
.model-card > div {
  padding: 22px;
}

.text-link {
  color: var(--blue);
  font-weight: 800;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(34px, 6vw, 86px);
  align-items: center;
}

.split-section > div:first-child {
  width: min(760px, 100%);
}

.image-collage {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 16px;
  align-items: end;
}

.image-collage img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.image-collage img:nth-child(2) {
  height: 360px;
}

.image-collage.tall img {
  height: 460px;
}

.parallax-break {
  min-height: 520px;
  display: flex;
  align-items: flex-end;
  padding: clamp(70px, 9vw, 118px) clamp(18px, 5vw, 72px);
}

.break-content p:not(.eyebrow) {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 19px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-grid div {
  min-height: 150px;
  padding: 24px;
  border-radius: 8px;
  border-top: 4px solid var(--yellow);
  background: var(--paper);
}

.feature-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 24px;
}

.feature-grid span {
  color: var(--muted);
  font-weight: 700;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.model-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wide-image {
  width: min(1180px, 100%);
  max-height: 560px;
  margin: 0 auto;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.table-wrap {
  width: min(1240px, 100%);
  margin-inline: auto;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(16, 24, 32, 0.07);
}

table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--blue-dark);
  font-weight: 800;
}

tr:nth-child(even) {
  background: var(--paper);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.image-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
}

.reference-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.reference-strip img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.reference-card {
  display: block;
  overflow: hidden;
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 10px 24px rgba(16, 24, 32, 0.09);
}

.reference-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: contain;
  padding: 12px;
  background: var(--white);
  image-rendering: auto;
  transition: transform 0.35s ease;
}

.reference-card:hover img {
  transform: scale(1.045);
}

.download-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr 1fr;
  gap: 18px;
  align-items: start;
}

.download-column {
  padding: 22px;
}

.download-column h3 {
  color: var(--blue-dark);
}

.download-column a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-weight: 800;
}

.download-column small {
  min-width: 44px;
  padding: 4px 7px;
  border-radius: 8px;
  background: rgba(217, 47, 47, 0.1);
  color: var(--red);
  text-align: center;
}

.contact-page {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.contact-card {
  padding: 26px;
}

.contact-card dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px 18px;
  margin: 0;
}

.contact-card dt {
  color: var(--muted);
  font-weight: 800;
}

.contact-card dd {
  margin: 0;
}

.contact-card a {
  color: var(--blue);
  font-weight: 800;
}

.legal-content {
  color: var(--muted);
}

.legal-content > * {
  width: min(980px, 100%);
  margin-inline: auto;
}

.legal-content h1,
.legal-content h2,
.legal-content h3 {
  color: var(--ink);
}

.legal-content table {
  margin-block: 20px;
}

.reveal {
  transform: translateY(24px);
  opacity: 0;
  transition: transform 0.55s ease, opacity 0.55s ease, box-shadow 0.25s ease;
}

.reveal.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
  padding: clamp(42px, 6vw, 72px) clamp(18px, 5vw, 72px);
  background: #0b1117;
  color: rgba(255, 255, 255, 0.68);
}

.site-footer h3,
.site-footer strong,
.site-footer a {
  color: var(--white);
}

.site-footer h3 {
  margin-bottom: 12px;
  font-size: 16px;
}

.site-footer div {
  display: grid;
  align-content: start;
  gap: 8px;
}

.footer-brand img {
  width: 68px;
  filter: brightness(0) invert(1);
}

@media (max-width: 1180px) {
  .product-grid,
  .model-grid,
  .download-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .reference-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .site-footer {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 18px;
    right: 18px;
    display: none;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: grid;
  }

  .page-hero {
    min-height: 620px;
  }

  .stats-band,
  .feature-grid,
  .split-section,
  .contact-page {
    grid-template-columns: 1fr;
  }

  .image-collage {
    grid-template-columns: 1fr;
  }

  .image-collage img,
  .image-collage img:nth-child(2),
  .image-collage.tall img {
    height: auto;
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 640px) {
  .brand span {
    display: none;
  }

  .page-hero {
    min-height: 560px;
    padding-bottom: 58px;
  }

  .product-grid,
  .model-grid,
  .model-grid.two,
  .download-grid,
  .reference-grid,
  .reference-strip,
  .image-gallery,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .contact-card dl {
    grid-template-columns: 1fr;
  }
}