:root {
  --blue-900: #0b1f3a;
  --blue-800: #12365f;
  --blue-700: #164777;
  --petrol: #0f766e;
  --red: #c62828;
  --gray-950: #111827;
  --gray-700: #374151;
  --gray-500: #6b7280;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--gray-950);
  background: var(--white);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.narrow { max-width: 820px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
}

.nav-wrapper { display: flex; align-items: center; justify-content: space-between; min-height: 78px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; color: var(--blue-900); }
.logo-mark {
  width: 42px; height: 42px; border-radius: 14px;
  display: grid; place-items: center;
  color: var(--white); background: linear-gradient(135deg, var(--blue-900), var(--petrol));
  box-shadow: var(--shadow);
}
.logo-text { font-size: 1.1rem; }

.main-nav { display: flex; align-items: center; gap: 18px; font-size: 0.94rem; }
.main-nav a { color: var(--gray-700); font-weight: 600; }
.main-nav a:hover, .main-nav a.active { color: var(--blue-800); }
.nav-cta { padding: 10px 16px; border-radius: 999px; background: var(--blue-900); color: var(--white) !important; }
.nav-toggle { display: none; border: 0; background: var(--gray-100); border-radius: 12px; padding: 10px 13px; font-size: 1.4rem; }

.hero { padding: 92px 0 72px; background: radial-gradient(circle at top left, rgba(15, 118, 110, 0.14), transparent 38%), linear-gradient(135deg, #f8fbff, #ffffff); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 56px; }
.eyebrow { color: var(--red); font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.8rem; margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.15; color: var(--blue-900); margin-top: 0; }
h1 { font-size: clamp(2.4rem, 6vw, 4.8rem); margin-bottom: 22px; letter-spacing: -0.04em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); margin-bottom: 18px; letter-spacing: -0.03em; }
h3 { font-size: 1.3rem; margin-bottom: 10px; }
.hero-lead { font-size: 1.22rem; color: var(--gray-700); max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 20px; border-radius: 999px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary { background: var(--blue-900); color: var(--white); }
.btn-secondary { background: var(--white); color: var(--blue-900); border: 1px solid rgba(11, 31, 58, 0.14); }

.hero-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
  border: 1px solid rgba(17, 24, 39, 0.08);
}
.network-card {
  min-height: 170px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: var(--white);
  display: flex; align-items: center; justify-content: center; gap: 20px;
  font-size: 1.2rem; font-weight: 800;
}
.network-card strong { color: #fff; font-size: 2rem; opacity: .88; }
.signal-list { display: grid; gap: 10px; padding: 0; margin: 22px 0 0; list-style: none; }
.signal-list li { padding: 12px 14px; border-radius: 14px; background: var(--gray-50); font-weight: 700; color: var(--blue-900); }

.section { padding: 82px 0; }
.section-muted { background: var(--gray-50); }
.section-heading { max-width: 760px; margin-bottom: 32px; }
.card-grid { display: grid; gap: 22px; }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
}
.info-card .icon { width: 48px; height: 48px; border-radius: 16px; background: rgba(15, 118, 110, 0.1); color: var(--petrol); display: grid; place-items: center; font-size: 1.6rem; margin-bottom: 18px; }
.info-card p { color: var(--gray-700); }
.info-card a { color: var(--petrol); font-weight: 800; }

.split { display: grid; grid-template-columns: 1fr 0.9fr; gap: 42px; align-items: center; }
.check-panel { background: var(--blue-900); color: var(--white); padding: 32px; border-radius: var(--radius); box-shadow: var(--shadow); }
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.check-list li { padding-left: 30px; position: relative; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: #7dd3fc; font-weight: 900; }

.cta-section { padding: 74px 0; background: linear-gradient(135deg, var(--blue-900), var(--blue-700)); color: var(--white); }
.cta-section h2 { color: var(--white); }
.cta-section .eyebrow { color: #fca5a5; }
.cta-box { display: flex; justify-content: space-between; align-items: center; gap: 32px; }
.cta-box p { max-width: 760px; }

.site-footer { padding: 48px 0; background: #071528; color: rgba(255,255,255,.82); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.site-footer h4 { margin: 0 0 10px; color: var(--white); }
.site-footer a { display: block; color: rgba(255,255,255,.78); margin: 8px 0; }

.page-hero { padding: 74px 0 50px; background: linear-gradient(135deg, #f8fbff, #ffffff); border-bottom: 1px solid rgba(17,24,39,.08); }
.page-hero h1 { font-size: clamp(2.1rem, 4vw, 3.7rem); }
.content-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 42px; }
.service-list { display: grid; gap: 18px; }
.service-item { border-left: 4px solid var(--petrol); padding: 18px 20px; background: var(--gray-50); border-radius: 0 18px 18px 0; }
.form-card { background: var(--white); border: 1px solid rgba(17,24,39,.1); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.form-grid { display: grid; gap: 16px; }
label { font-weight: 700; color: var(--blue-900); }
input, select, textarea { width: 100%; padding: 13px 14px; border: 1px solid rgba(17,24,39,.18); border-radius: 12px; font: inherit; margin-top: 6px; }
textarea { min-height: 150px; resize: vertical; }

@media (max-width: 980px) {
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; left: 16px; right: 16px; top: 78px; background: white; border-radius: 22px; padding: 18px; box-shadow: var(--shadow); flex-direction: column; align-items: flex-start; }
  .main-nav.open { display: flex; }
  .hero-grid, .split, .content-grid { grid-template-columns: 1fr; }
  .card-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-box { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .card-grid.four, .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 58px 0; }
  .hero { padding: 66px 0 50px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
}