:root {
  --bg: #07111f;
  --bg-soft: #0d1b2e;
  --primary: #28d6a3;
  --primary-dark: #12a77c;
  --accent: #6ea8fe;
  --text: #0e1726;
  --muted: #64748b;
  --white: #ffffff;
  --off-white: #f7fbff;
  --border: #dbe7f3;
  --shadow: 0 24px 70px rgba(7, 17, 31, 0.16);
  --radius: 22px;
  --container: 1160px;
}

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.section-padding { padding: 96px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(219, 231, 243, 0.85);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; }
.brand-logo {
  display: block;
  width: auto;
  height: 54px;
  object-fit: contain;
}
.site-header .brand-logo { height: 50px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--bg);
  background: linear-gradient(135deg, var(--primary), #c5fff0);
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(40, 214, 163, 0.28);
}
.brand-text { font-size: 1.28rem; letter-spacing: -0.03em; }
.brand-text span { color: var(--primary-dark); }
.nav-menu { display: flex; align-items: center; gap: 28px; color: #334155; font-weight: 650; }
.nav-menu a:hover { color: var(--primary-dark); }
.nav-cta {
  padding: 11px 18px;
  color: var(--bg) !important;
  background: var(--primary);
  border-radius: 999px;
  box-shadow: 0 12px 26px rgba(40, 214, 163, 0.24);
}
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; }
.nav-toggle span { display: block; width: 25px; height: 2px; background: var(--text); margin: 5px 0; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 25%, rgba(40, 214, 163, 0.22), transparent 28%),
    radial-gradient(circle at 85% 20%, rgba(110, 168, 254, 0.18), transparent 32%),
    linear-gradient(135deg, #f8fcff 0%, #edf8ff 48%, #f7fffc 100%);
}
.hero:after {
  content: "";
  position: absolute;
  inset: auto -10% -35% auto;
  width: 580px;
  height: 580px;
  background: rgba(40, 214, 163, 0.12);
  border-radius: 50%;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  font-size: clamp(2.7rem, 6vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.075em;
  color: #06101d;
}
.hero-subtitle {
  max-width: 660px;
  color: #44546a;
  font-size: 1.18rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: var(--bg); background: var(--primary); box-shadow: 0 18px 34px rgba(18, 167, 124, 0.28); }
.btn-secondary { color: var(--text); background: var(--white); border-color: var(--border); }
.trust-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 42px;
}
.trust-row div {
  padding: 18px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(219, 231, 243, 0.9);
  border-radius: 18px;
}
.trust-row strong { display: block; font-size: 1.08rem; }
.trust-row span { color: var(--muted); font-size: 0.92rem; }

.hero-card {
  position: relative;
  padding: 26px;
  color: var(--white);
  background: linear-gradient(160deg, #09182a, #0f2a42 55%, #0b4a45);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 32px;
  box-shadow: 0 32px 90px rgba(8, 23, 42, 0.36);
  overflow: hidden;
}
.hero-card:before {
  content: "";
  position: absolute;
  inset: -20% -30% auto auto;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(40,214,163,0.35), transparent 62%);
}
.card-topbar { display: flex; gap: 8px; margin-bottom: 30px; }
.card-topbar span { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.35); }
.status-pill {
  position: relative;
  z-index: 1;
  display: inline-flex;
  padding: 8px 12px;
  color: #d7fff4;
  background: rgba(40,214,163,0.14);
  border: 1px solid rgba(40,214,163,0.32);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 750;
}
.metric-card {
  position: relative;
  z-index: 1;
  padding: 18px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 20px;
}
.metric-card span { display: block; color: #b5c7dc; font-size: 0.9rem; }
.metric-card strong { display: block; margin-top: 8px; font-size: 1.8rem; line-height: 1; }
.metric-card.large {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 26px;
  margin-bottom: 16px;
  padding: 28px;
}
.metric-card.large strong { font-size: 4rem; letter-spacing: -0.08em; }
.ring {
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  color: var(--primary);
  font-weight: 900;
  border: 12px solid rgba(40,214,163,0.36);
  background: rgba(7,17,31,0.45);
}
.metrics-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.signal-line {
  position: relative;
  height: 86px;
  margin-top: 20px;
  border-radius: 18px;
  background: linear-gradient(90deg, transparent, rgba(40,214,163,0.24), transparent);
  overflow: hidden;
}
.signal-line:before {
  content: "";
  position: absolute;
  left: -10%;
  top: 38px;
  width: 120%;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--primary) 0 28px, transparent 28px 50px);
  animation: flow 4s linear infinite;
}
@keyframes flow { to { transform: translateX(50px); } }

.logo-strip { padding: 22px 0; background: var(--bg); color: #dbeafe; }
.strip-items { display: flex; justify-content: space-between; gap: 24px; overflow-x: auto; }
.strip-items span { white-space: nowrap; font-size: 0.9rem; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.84; }

.section-heading { max-width: 760px; margin: 0 auto 54px; text-align: center; }
.section-heading.narrow { max-width: 640px; }
.section-heading h2, .expertise-grid h2, .engineer-panel h2, .split-section h2, .cta-card h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.055em;
}
.section-heading p, .expertise-grid p, .engineer-panel p, .cta-card p { color: var(--muted); font-size: 1.05rem; }
.cards.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card {
  padding: 28px;
  min-height: 278px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  color: var(--bg);
  background: #dcfff5;
  border-radius: 16px;
  font-weight: 900;
}
.service-card h3 { margin-bottom: 12px; font-size: 1.22rem; }
.service-card p { color: var(--muted); margin-bottom: 0; }

.dark-section {
  color: var(--white);
  background: linear-gradient(145deg, #07111f 0%, #0e2238 62%, #073f3b 100%);
}
.dark-section .eyebrow { color: var(--primary); }
.expertise-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 58px; align-items: center; }
.dark-section p { color: #c0cfe0; }
.text-link { display: inline-flex; margin-top: 16px; color: var(--primary); font-weight: 850; }
.expertise-list { display: grid; gap: 16px; }
.expertise-list div {
  padding: 24px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
}
.expertise-list strong { display: block; margin-bottom: 8px; font-size: 1.08rem; }
.expertise-list span { color: #b9c8da; }

.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.timeline-item {
  position: relative;
  padding: 28px;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.timeline-item span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 26px;
  color: var(--white);
  background: var(--bg);
  border-radius: 50%;
  font-weight: 900;
}
.timeline-item h3 { margin-bottom: 8px; }
.timeline-item p { margin-bottom: 0; color: var(--muted); }

.engineers { background: #fbfdff; }
.engineers-grid { display: grid; grid-template-columns: 1fr 0.86fr; gap: 42px; align-items: stretch; }
.engineer-panel, .stats-panel {
  padding: 42px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background: var(--white);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.07);
}
.check-list { display: grid; gap: 14px; padding: 0; margin: 28px 0 0; list-style: none; }
.check-list li { position: relative; padding-left: 32px; color: #334155; }
.check-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  top: -1px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--bg);
  background: var(--primary);
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 900;
}
.stats-panel { display: grid; gap: 16px; background: var(--bg); color: var(--white); }
.stats-panel div { padding: 22px; border: 1px solid rgba(255,255,255,0.13); border-radius: 20px; background: rgba(255,255,255,0.06); }
.stats-panel strong { display: block; margin-bottom: 6px; font-size: 1.15rem; }
.stats-panel span { color: #b9c8da; }

.light-section { background: #f3f8fc; }
.split-section { display: grid; grid-template-columns: 0.78fr 1.22fr; gap: 50px; align-items: start; }
.benefits-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.benefits-grid div { padding: 26px; background: var(--white); border: 1px solid var(--border); border-radius: 20px; }
.benefits-grid h3 { margin-bottom: 8px; }
.benefits-grid p { margin-bottom: 0; color: var(--muted); }

.cta-section { background: linear-gradient(135deg, #eef9ff, #f2fff9); }
.cta-card {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 50px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 32px;
  box-shadow: var(--shadow);
}
.contact-form { display: grid; gap: 16px; }
.contact-form label { display: grid; gap: 8px; font-weight: 750; color: #334155; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  font: inherit;
  color: var(--text);
  background: #fbfdff;
  outline: none;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 4px rgba(40, 214, 163, 0.14);
}
.contact-form button { justify-self: start; border: 0; }

.footer { padding: 70px 0 28px; color: #c5d4e8; background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.25fr 0.75fr 1.2fr 1fr; gap: 40px; }
.footer-brand {
  display: inline-flex;
  padding: 8px 12px;
  margin-bottom: 18px;
  background: var(--white);
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(0,0,0,0.18);
}
.footer-brand .brand-logo { height: 48px; }
.footer .brand-text { color: var(--white); }
.footer h4 { margin: 0 0 14px; color: var(--white); }
.footer p { color: #9fb0c6; margin: 0 0 10px; }
.footer a { display: block; margin-bottom: 10px; color: #c5d4e8; }
.footer a:hover { color: var(--primary); }
.disclaimer { margin-top: 18px !important; font-size: 0.82rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: #91a4bd;
}
.footer-bottom a { display: inline; margin: 0; }

@media (max-width: 980px) {
  .hero-grid, .expertise-grid, .engineers-grid, .split-section, .cta-card, .footer-grid { grid-template-columns: 1fr; }
  .cards.three-col { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .trust-row { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 28px, var(--container)); }
  .section-padding { padding: 70px 0; }
  .site-header .brand-logo { height: 42px; }
  .footer-brand .brand-logo { height: 44px; }
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 14px; }
  .nav-cta { text-align: center; margin-top: 8px; }
  .hero-grid { gap: 42px; }
  h1 { font-size: clamp(2.55rem, 14vw, 4.2rem); }
  .cards.three-col, .timeline, .benefits-grid, .metrics-grid { grid-template-columns: 1fr; }
  .hero-card, .engineer-panel, .stats-panel, .cta-card { padding: 26px; border-radius: 24px; }
  .metric-card.large { align-items: flex-start; gap: 20px; flex-direction: column; }
  .footer-bottom { flex-direction: column; }
}