:root {
  --ink: #111827;
  --text: #273244;
  --muted: #647084;
  --line: #dce3ee;
  --paper: #ffffff;
  --soft: #f5f7fb;
  --primary: #1557a6;
  --primary-dark: #0d376c;
  --accent: #d21f32;
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

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

.site-shell {
  min-height: 100vh;
  overflow-x: hidden;
}

.topbar {
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(220, 227, 238, 0.9);
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  left: 0;
  padding: 14px 64px;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
  font-weight: 800;
  line-height: 1.1;
  min-width: 0;
}

.logo-mark {
  align-items: center;
  background: var(--primary);
  border-radius: 8px;
  color: white;
  display: inline-flex;
  height: 46px;
  justify-content: center;
  width: 46px;
}

.logo-mark svg {
  display: block;
  height: 34px;
  width: 34px;
}

.logo-mark path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 4;
}

.brand-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.brand-copy strong {
  font-size: 19px;
  line-height: 1.15;
  white-space: nowrap;
}

.brand small {
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.header-actions {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: flex-end;
}

.topbar nav {
  align-items: center;
  color: #334155;
  display: flex;
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 700;
  gap: 28px;
  justify-content: flex-end;
}

.topbar nav a {
  padding: 8px 0;
}

.language-switch {
  align-items: center;
  border: 1px solid var(--line);
  display: inline-flex;
  overflow: hidden;
}

.language-switch button {
  background: #ffffff;
  border: 0;
  color: #475569;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  min-height: 34px;
  padding: 0 12px;
}

.language-switch button + button {
  border-left: 1px solid var(--line);
}

.language-switch button.active {
  background: var(--primary);
  color: #ffffff;
}

.hero {
  align-items: center;
  background-color: #f7faff;
  background-image: url("/bluev8-product.png");
  background-position: right 64px center;
  background-repeat: no-repeat;
  background-size: 560px;
  display: flex;
  min-height: 760px;
  padding: 128px 64px 70px;
  position: relative;
}

.hero::before {
  background: rgba(247, 250, 255, 0.78);
  content: "";
  inset: 0;
  position: absolute;
}

.hero-copy {
  max-width: 700px;
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-heading p,
.contact-band p {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 12px;
  text-transform: uppercase;
}

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

h1 {
  font-size: 60px;
  line-height: 1.03;
  margin-bottom: 22px;
  max-width: 760px;
}

.hero-text {
  color: var(--text);
  font-size: 20px;
  line-height: 1.72;
  margin-bottom: 8px;
  max-width: 640px;
}

.en {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-actions a,
.contact-band a {
  align-items: center;
  background: var(--primary);
  border: 1px solid var(--primary);
  color: white;
  display: inline-flex;
  font-weight: 800;
  min-height: 48px;
  padding: 0 22px;
}

.hero-actions .secondary {
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--ink);
}

.intro-band {
  background: #ffffff;
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, 1fr);
  padding: 0 64px;
  transform: translateY(-34px);
}

.intro-band article {
  background: #ffffff;
  border: 1px solid var(--line);
  min-height: 122px;
  padding: 26px 28px;
}

.intro-band strong,
.intro-band span {
  display: block;
}

.intro-band strong {
  color: var(--ink);
  font-size: 18px;
  margin-bottom: 10px;
}

.intro-band span {
  color: var(--muted);
  line-height: 1.55;
}

.section {
  padding: 76px 64px;
}

.section-heading {
  max-width: 760px;
}

.section-heading h2,
.contact-band h2 {
  font-size: 42px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-heading span {
  color: var(--muted);
  display: block;
  font-size: 18px;
  line-height: 1.7;
}

.products {
  background: var(--soft);
  padding-top: 34px;
}

.featured-product {
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 34px;
  grid-template-columns: 0.9fr 1.1fr;
  padding: 34px;
}

.featured-product h3 {
  font-size: 38px;
  line-height: 1.12;
  margin-bottom: 14px;
}

.featured-product p {
  color: #354052;
  font-size: 17px;
  line-height: 1.76;
  max-width: 620px;
}

.featured-product img {
  display: block;
  height: auto;
  justify-self: end;
  max-width: 560px;
  width: 100%;
}

.product-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.product-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 282px;
  padding: 26px;
}

.product-card p {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 38px;
}

.product-card h3 {
  font-size: 24px;
  line-height: 1.2;
  margin-bottom: 8px;
}

.product-card h4 {
  color: #384354;
  font-size: 17px;
  margin: 0 0 18px;
}

.product-card span,
.product-card small {
  color: var(--muted);
  display: block;
  font-size: 15px;
  line-height: 1.7;
}

.product-card small {
  margin-top: 12px;
}

.catalog-strip {
  margin-top: 46px;
}

.catalog-heading {
  align-items: end;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 18px;
}

.catalog-heading h3 {
  font-size: 30px;
  margin: 0;
}

.catalog-heading p {
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.catalog-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, 1fr);
}

.catalog-item {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.catalog-item img {
  aspect-ratio: 1;
  background: #ffffff;
  display: block;
  height: auto;
  object-fit: contain;
  width: 100%;
}

.catalog-item strong,
.catalog-item span {
  display: block;
}

.catalog-item strong {
  font-size: 18px;
  margin-top: 12px;
}

.catalog-item span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  margin-top: 3px;
}

.about {
  background: #ffffff;
}

.about-layout {
  align-items: start;
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 32px;
}

.about-copy {
  columns: 2;
  column-gap: 42px;
  max-width: 1080px;
}

.about-copy p {
  color: #333d4c;
  font-size: 17px;
  line-height: 1.82;
  margin-bottom: 0;
}

.company-details {
  break-inside: avoid;
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
}

.company-details div {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
}

.company-details dt {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 5px;
}

.company-details dd {
  color: #2f3744;
  line-height: 1.55;
  margin: 0;
}

.contact-band {
  align-items: center;
  background: var(--primary-dark);
  color: white;
  display: flex;
  gap: 28px;
  justify-content: space-between;
  padding: 64px;
}

.contact-band span {
  color: #d5e4f6;
  display: block;
  font-size: 17px;
  line-height: 1.6;
  max-width: 700px;
}

.contact-band ul {
  color: #d5e4f6;
  display: grid;
  gap: 7px;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.contact-band li {
  line-height: 1.45;
}

.contact-band a {
  background: white;
  border-color: white;
  color: var(--primary-dark);
  white-space: nowrap;
}

.site-footer {
  align-items: center;
  background: #081326;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #d9e1ee;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  padding: 20px 64px;
}

.site-footer span,
.site-footer small {
  line-height: 1.5;
}

.site-footer span {
  color: white;
  font-size: 14px;
  font-weight: 800;
}

.site-footer small {
  color: #aeb8c8;
  font-size: 13px;
}

@media (max-width: 980px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 24px;
  }

  .header-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    background-position: center bottom 26px;
    background-size: 520px;
    min-height: 860px;
    padding: 150px 24px 330px;
  }

  .hero::before {
    background: rgba(247, 250, 255, 0.92);
  }

  .intro-band,
  .product-grid,
  .catalog-grid,
  .featured-product,
  .about-layout {
    grid-template-columns: 1fr;
  }

  .intro-band {
    padding: 0 24px;
    transform: none;
  }

  .section,
  .contact-band,
  .site-footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .catalog-heading {
    align-items: start;
    flex-direction: column;
  }

  .featured-product img {
    justify-self: center;
  }

  .about-copy {
    columns: 1;
  }

  .contact-band,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .brand {
    align-items: flex-start;
  }

  .logo-mark {
    height: 42px;
    width: 42px;
  }

  .logo-mark svg {
    height: 31px;
    width: 31px;
  }

  .brand-copy strong {
    font-size: 16px;
    white-space: normal;
  }

  .topbar nav {
    font-size: 13px;
    gap: 10px;
  }

  .hero {
    background-size: 430px;
    min-height: 820px;
    padding-bottom: 275px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-text {
    font-size: 17px;
  }

  .section-heading h2,
  .contact-band h2 {
    font-size: 32px;
  }

  .featured-product {
    padding: 22px;
  }

  .featured-product h3 {
    font-size: 30px;
  }

  .product-card {
    min-height: auto;
  }
}