:root {
  --navy: #0b1f33;
  --blue: #1f6aa5;
  --blue-dark: #164f7f;
  --green: #11845b;
  --orange: #d97706;
  --text: #1f2933;
  --muted: #5d6b7a;
  --line: #dbe3ea;
  --soft: #f5f8fb;
  --white: #fff;
  --max: 1180px;
  --radius: 8px;
  --shadow: 0 16px 36px rgba(16, 42, 67, .12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand { display: flex; flex-direction: column; min-width: 190px; }
.brand strong { color: var(--navy); font-size: 20px; line-height: 1.1; }
.brand span { color: var(--muted); font-size: 12px; margin-top: 4px; }
.main-nav { display: flex; align-items: center; gap: 22px; font-size: 14px; font-weight: 700; color: #455466; }
.main-nav a { padding: 8px 0; border-bottom: 2px solid transparent; }
.main-nav a:hover, .main-nav a.active { color: var(--blue); border-color: var(--blue); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--navy); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}
.btn-primary { color: #fff; background: var(--green); }
.btn-primary:hover { background: #0c704c; }
.btn-outline { color: var(--navy); background: #fff; border-color: #b9c8d6; }
.btn-outline:hover { border-color: var(--blue); background: #f1f7fc; }
.btn-light { color: var(--navy); background: #fff; }

.hero {
  min-height: 680px;
  display: flex;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 23, 40, .88), rgba(7, 23, 40, .64), rgba(7, 23, 40, .12)),
    var(--hero-image) center / cover no-repeat;
}
.hero-inner { max-width: 820px; padding: 80px 0; }
.eyebrow {
  margin: 0 0 14px;
  color: #bfe2ff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero h1, .page-hero h1 {
  margin: 0;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.08;
}
.hero p, .page-hero p { max-width: 760px; margin: 20px 0 0; color: #e7f2fc; font-size: 18px; }
.hero-actions, .section-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-facts { display: grid; grid-template-columns: repeat(4, minmax(120px, 1fr)); gap: 12px; margin-top: 34px; }
.hero-facts div { padding: 16px; background: rgba(255,255,255,.1); border-left: 3px solid #76bdf3; }
.hero-facts strong { display: block; font-size: 18px; }
.hero-facts span { display: block; margin-top: 4px; color: #d7e7f4; font-size: 13px; }

.page-hero {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 23, 40, .9), rgba(7, 23, 40, .66), rgba(7, 23, 40, .18)),
    var(--hero-image) center / cover no-repeat;
}
.page-hero .container { padding: 92px 0 76px; }

.section { padding: 76px 0; }
.section-light { background: var(--soft); }
.section-dark { color: #fff; background: var(--navy); }
.section-head { max-width: 790px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h2 { margin: 0; color: var(--navy); font-size: clamp(28px, 3vw, 40px); line-height: 1.16; }
.section-dark h2, .section-dark h3 { color: #fff; }
.lead, .section-head p { margin: 16px 0 0; color: var(--muted); font-size: 17px; }
.section-dark .lead, .section-dark .section-head p { color: #d9e7f2; }

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card, .product-card, .panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(16, 42, 67, .05);
}
.card, .panel { padding: 24px; }
.card h3, .product-card h3, .panel h3 { margin: 0 0 10px; color: var(--navy); font-size: 20px; line-height: 1.25; }
.card p, .product-card p, .panel p { margin: 0; color: var(--muted); }

.product-card { overflow: hidden; }
.product-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #fff;
}
.product-body { padding: 22px; }
.specs {
  margin: 16px 0;
  padding: 14px;
  border-radius: 6px;
  color: #506173;
  font-size: 14px;
  background: #f0f6fb;
}
.specs strong { color: var(--navy); }

.split { display: grid; grid-template-columns: 1.02fr .98fr; gap: 34px; align-items: center; }
.split img, .image-grid img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.image-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; }

.list { margin: 18px 0 0; padding: 0; list-style: none; }
.list li { position: relative; margin: 10px 0; padding-left: 24px; color: var(--muted); }
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}
.two-col { columns: 2; }

.process { counter-reset: step; }
.process .card { position: relative; padding-top: 58px; }
.process .card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 22px;
  left: 24px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--blue);
  font-weight: 800;
}

.cta-band { padding: 54px 0; color: #fff; background: var(--navy); }
.cta-wrap { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.cta-wrap h2 { color: #fff; font-size: clamp(26px, 3vw, 36px); }
.cta-wrap p { max-width: 760px; margin: 10px 0 0; color: #d9e7f2; }

.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
.contact-box { padding: 24px; border: 1px solid #cfe0ee; border-radius: var(--radius); background: #f2f7fb; }
.contact-box p { margin: 8px 0; }
.form { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form label { display: grid; gap: 7px; color: #4c5d6f; font-size: 14px; font-weight: 700; }
.form input, .form select, .form textarea {
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  border: 1px solid #c7d3df;
  border-radius: 6px;
  font: inherit;
  color: var(--text);
  background: #fff;
}
.form textarea { min-height: 136px; resize: vertical; }
.note { color: var(--muted); font-size: 13px; }

.site-footer { color: #cbd8e5; background: #07182b; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr 1fr; gap: 28px; padding: 46px 0; }
.site-footer h3, .site-footer h4 { margin: 0 0 12px; color: #fff; }
.site-footer p, .site-footer a { color: #cbd8e5; }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li { margin: 8px 0; }
.footer-bottom { padding: 18px 0; border-top: 1px solid rgba(255,255,255,.1); color: #99abba; font-size: 13px; }

@media (max-width: 980px) {
  .menu-toggle { display: inline-block; }
  .main-nav {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 20px 18px;
    border-bottom: 1px solid var(--line);
    background: #fff;
  }
  .main-nav.open { display: flex; }
  .main-nav a { width: 100%; padding: 12px 0; }
  .nav-quote { display: none; }
  .hero-facts, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-2, .split, .image-grid, .contact-layout, .footer-grid { grid-template-columns: 1fr; }
  .cta-wrap { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--max)); }
  .nav-wrap { min-height: 68px; }
  .main-nav { top: 68px; }
  .brand strong { font-size: 17px; }
  .brand span { display: none; }
  .hero { min-height: auto; }
  .hero-inner { padding: 72px 0 56px; }
  .hero p, .page-hero p { font-size: 16px; }
  .hero-facts, .grid-4, .form-row { grid-template-columns: 1fr; }
  .section { padding: 54px 0; }
  .page-hero .container { padding: 70px 0 58px; }
  .two-col { columns: 1; }
}