:root {
  --ink: #17212b;
  --muted: #5e6a76;
  --line: #d8e1e8;
  --panel: #ffffff;
  --soft: #f4f8fb;
  --brand: #007f8f;
  --brand-dark: #075663;
  --accent: #f2b134;
  --danger: #d94d3f;
  --shadow: 0 18px 50px rgba(15, 42, 58, 0.12);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  line-height: 1.6;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 285px;
}

.nav-links,
.language-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a:not(.brand),
.language-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 9px 12px;
  border-radius: var(--radius);
}

.nav a[aria-current="page"],
.nav a:not(.brand):hover,
.language-links a:hover {
  color: var(--brand-dark);
  background: #e8f3f6;
}

.hero {
  background:
    linear-gradient(135deg, rgba(7, 86, 99, 0.96), rgba(23, 33, 43, 0.84)),
    url("../images/gchl.jpg") center right / contain no-repeat;
  color: #ffffff;
  min-height: 560px;
  display: grid;
  align-items: end;
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, 660px) minmax(260px, 380px);
  gap: 48px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 14px;
  color: #f9d27a;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.82rem;
}

h1,
h2,
h3 {
  line-height: 1.12;
  margin: 0;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  max-width: 760px;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.65rem);
  margin-bottom: 18px;
}

h3 {
  font-size: 1.18rem;
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.84);
  max-width: 650px;
  margin: 22px 0 0;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 800;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--accent);
  color: #17212b;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.42);
  color: #ffffff;
}

.button.light {
  background: #ffffff;
  color: var(--brand-dark);
  border-color: var(--line);
}

.button.whatsapp {
  background: #1fb45b;
  color: #ffffff;
}

.hero-card,
.panel,
.product-card,
.contact-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  color: var(--ink);
  padding: 22px;
}

.hero-card img {
  border-radius: 6px;
  background: #eef5f7;
}

.hero-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
  scroll-margin-top: 96px;
}

.section.compact {
  padding-top: 40px;
}

.page-section {
  padding-top: 88px;
  padding-bottom: 88px;
}

.page-section.alt {
  width: 100%;
  max-width: none;
  padding-left: max(16px, calc((100% - 1180px) / 2));
  padding-right: max(16px, calc((100% - 1180px) / 2));
  background: #eaf3f6;
}

.table-wrap {
  margin-top: 32px;
}

.table-wrap h3 {
  margin-bottom: 14px;
}

.specs-grid {
  margin-top: 32px;
}

.section > p {
  color: var(--muted);
  max-width: 820px;
  margin: 0 0 28px;
}

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

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.product-card {
  overflow: hidden;
}

.product-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #eef5f7;
}

img[src$="gchl3.png"],
img[src$="smchk1.png"] {
  border-radius: var(--radius);
}

.product-card .body,
.panel,
.contact-card {
  padding: 24px;
}

.product-card p,
.panel p,
.contact-card p {
  color: var(--muted);
}

.metric {
  padding: 22px;
  border-left: 4px solid var(--brand);
  background: #ffffff;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(15, 42, 58, 0.07);
}

.metric strong {
  display: block;
  font-size: 1.55rem;
  color: var(--brand-dark);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.feature-list li {
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(15, 42, 58, 0.07);
}

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

.spec-table th {
  background: var(--brand-dark);
  color: #ffffff;
}

.spec-table tr:last-child td {
  border-bottom: 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 28px;
  align-items: start;
}

.contact-band {
  background: var(--brand-dark);
  color: #ffffff;
}

.contact-band .section {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.contact-band p {
  color: rgba(255, 255, 255, 0.78);
  margin: 10px 0 0;
}

.contact-card {
  display: grid;
  gap: 14px;
}

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

.form {
  display: grid;
  gap: 14px;
}

.form label {
  display: grid;
  gap: 7px;
  font-weight: 800;
  color: var(--ink);
}

.form input,
.form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  font: inherit;
}

.form textarea {
  min-height: 130px;
  resize: vertical;
}

.site-footer {
  padding: 30px 0;
  border-top: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
}

.site-footer .inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(135deg, rgba(7, 86, 99, 0.96), rgba(23, 33, 43, 0.88)),
      url("../images/gchl.jpg") center bottom / 78% no-repeat;
  }

  .hero-inner,
  .two-column,
  .contact-band .section {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    padding: 72px 0 40px;
  }

  .hero-card {
    max-width: 420px;
  }

  .grid,
  .product-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand img {
    width: 230px;
  }

  .nav-links,
  .language-links {
    width: 100%;
  }

  .nav a:not(.brand),
  .language-links a {
    padding: 8px 10px;
  }

  .section {
    padding: 52px 0;
  }

  .spec-table {
    display: block;
    overflow-x: auto;
  }
}