:root {
  --ink: #172126;
  --muted: #5d6a70;
  --line: #dde5e7;
  --surface: #ffffff;
  --soft: #f4f7f6;
  --accent: #087f8c;
  --accent-dark: #07535d;
  --gold: #c49a4b;
  --shadow: 0 20px 50px rgba(14, 28, 34, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 48px;
  color: #ffffff;
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 30px rgba(20, 35, 42, 0.1);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.78rem;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  opacity: 0.9;
}

.site-nav a:hover {
  opacity: 1;
  color: var(--gold);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  border: 1px solid currentColor;
  border-radius: 8px;
  color: inherit;
  background: transparent;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  overflow: hidden;
  color: #ffffff;
}

.hero-image,
.hero-overlay,
.hero-content {
  grid-area: 1 / 1;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background: linear-gradient(90deg, rgba(10, 29, 34, 0.82) 0%, rgba(10, 29, 34, 0.48) 42%, rgba(10, 29, 34, 0.08) 100%);
}

.hero-content {
  z-index: 1;
  align-self: center;
  width: min(720px, calc(100% - 48px));
  margin-left: clamp(24px, 8vw, 112px);
  padding-top: 60px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(3.1rem, 7vw, 6.9rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero p:not(.eyebrow) {
  max-width: 560px;
  margin: 24px 0 34px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1rem, 2vw, 1.22rem);
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
}

.primary-link {
  color: #ffffff;
  background: var(--accent);
}

.primary-link:hover {
  background: var(--accent-dark);
}

.section {
  padding: 96px clamp(24px, 7vw, 96px);
}

.about {
  background: var(--surface);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(32px, 7vw, 92px);
  align-items: start;
}

.about h2,
.section-heading h2,
.contact-band h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.about-copy {
  color: var(--muted);
  font-size: 1.02rem;
}

.about-copy p:first-child {
  margin-top: 0;
}

.products {
  background: var(--soft);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 34px;
}

.section-heading p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
}

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

.product-card {
  min-height: 270px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 1px 0 rgba(10, 29, 34, 0.04);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  border-color: rgba(8, 127, 140, 0.42);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.product-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 34px;
  place-items: center;
  border-radius: 8px;
  color: #ffffff;
  background: var(--accent);
  font-weight: 800;
}

.product-card h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.product-card p {
  margin: 0;
  color: var(--muted);
}

.contact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 76px clamp(24px, 7vw, 96px);
  color: #ffffff;
  background: #16252a;
}

.contact-band h2 {
  max-width: 860px;
  margin-top: 8px;
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.secondary-link {
  flex: 0 0 auto;
  color: var(--ink);
  background: #ffffff;
}

.secondary-link:hover {
  color: #ffffff;
  background: var(--accent);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(24px, 7vw, 96px);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer a {
  color: var(--accent-dark);
  font-weight: 800;
}

@media (max-width: 820px) {
  .site-header {
    min-height: 68px;
    padding: 0 20px;
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 20px 18px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 18px 30px rgba(20, 35, 42, 0.1);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 0;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(10, 29, 34, 0.88) 0%, rgba(10, 29, 34, 0.6) 100%);
  }

  .hero-content {
    width: min(100% - 40px, 560px);
    margin-left: 20px;
  }

  .about-grid,
  .product-grid,
  .section-heading,
  .contact-band,
  .site-footer {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .section {
    padding: 72px 20px;
  }

  .product-grid {
    display: grid;
  }

  .contact-band {
    padding: 60px 20px;
  }
}

@media (max-width: 520px) {
  .brand span:last-child {
    max-width: 190px;
    font-size: 0.9rem;
    line-height: 1.2;
  }

  .hero h1 {
    font-size: 3rem;
  }

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