:root {
  --bg: #ffffff;
  --text: #162033;
  --muted: #5f6b7a;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --soft: #eef7f6;
  --border: #d9e4e3;
  --card: #ffffff;
  --shadow: 0 20px 50px rgba(15, 35, 52, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1120px, 92%); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.05rem; }
.logo-mark { background: var(--primary); color: white; padding: 8px 10px; border-radius: 12px; letter-spacing: -0.04em; }
.nav-links { display: flex; gap: 28px; color: var(--muted); font-weight: 600; }
.nav-links a:hover { color: var(--primary); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; }

.hero { padding: 90px 0; background: linear-gradient(135deg, #f5fbfa 0%, #ffffff 55%, #eef7f6 100%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.eyebrow, .section-label { color: var(--primary); font-weight: 800; text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8rem; }
h1 { font-size: clamp(2.4rem, 5vw, 4.8rem); line-height: 1.02; letter-spacing: -0.06em; margin: 10px 0 22px; }
h2 { font-size: clamp(2rem, 3vw, 3rem); line-height: 1.12; letter-spacing: -0.04em; margin: 0 0 18px; }
h3 { margin-top: 0; font-size: 1.25rem; }
.hero-text { color: var(--muted); font-size: 1.12rem; max-width: 680px; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 13px 22px; border-radius: 999px; font-weight: 800; border: 1px solid transparent; cursor: pointer; }
.btn.primary { background: var(--primary); color: white; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.secondary { border-color: var(--border); background: white; color: var(--text); }
.hero-visual {
  background: white;
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.hero-visual img { border-radius: 18px; }

.section { padding: 86px 0; }
.section.alt { background: var(--soft); }
.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.split p { color: var(--muted); font-size: 1.03rem; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 34px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 22px; padding: 24px; box-shadow: 0 10px 25px rgba(15, 35, 52, 0.05); }
.card p { color: var(--muted); margin-bottom: 0; }
.icon-card .icon { width: 64px; height: 64px; margin-bottom: 18px; }
.why-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; }
.features { display: grid; gap: 16px; }
.features div { background: white; border: 1px solid var(--border); border-radius: 18px; padding: 20px; }
.features p { color: var(--muted); margin-bottom: 0; }
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.footer { background: #111827; color: white; padding: 26px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer a { color: #d1fae5; }

.division-cards { grid-template-columns: repeat(3, 1fr); }
.ops-cards { grid-template-columns: repeat(4, 1fr); }
.contact-grid.no-form { grid-template-columns: 0.9fr 1.1fr; }
.contact-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.contact-card p { margin: 0 0 16px; color: var(--muted); }
.contact-card p:last-child { margin-bottom: 0; }
.contact-card a { color: var(--primary); font-weight: 700; }

@media (max-width: 900px) {
  .hero-grid, .split, .why-grid, .contact-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .division-cards, .ops-cards { grid-template-columns: repeat(2, 1fr); }
  .contact-grid.no-form { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; left: 4%; right: 4%; top: 68px; background: white; border: 1px solid var(--border); border-radius: 18px; padding: 18px; flex-direction: column; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .hero { padding: 64px 0; }
  .section { padding: 64px 0; }
  .cards, .division-cards, .ops-cards { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}