:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #0a2540;
  --muted: #5d6b7a;
  --primary: #0a2540;
  --accent: #00aeef;
  --accent-soft: rgba(0, 174, 239, 0.12);
  --border: rgba(10, 37, 64, 0.1);
  --shadow: 0 24px 70px rgba(10, 37, 64, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(0, 174, 239, 0.14), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 12px 28px rgba(0, 174, 239, 0.22);
  letter-spacing: -0.05em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px;
  background: var(--text);
}

.section {
  padding: 96px clamp(20px, 5vw, 72px);
}

.hero {
  min-height: 82vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.65fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

h1 {
  max-width: 920px;
  font-size: clamp(2.6rem, 7vw, 5.9rem);
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  margin-bottom: 18px;
}

h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.hero-text {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 18px 40px rgba(0, 174, 239, 0.22);
}

.btn-secondary {
  color: var(--primary);
  background: var(--surface);
  border: 1px solid var(--border);
}

.hero-card,
.card,
.contact-box {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--border);
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 34px;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: auto -30% -45% 20%;
  height: 240px;
  background: radial-gradient(circle, rgba(0, 174, 239, 0.22), transparent 70%);
}

.hero-card ul {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
}

.hero-card li {
  padding: 14px 16px;
  border-radius: 18px;
  background: var(--accent-soft);
  font-weight: 700;
}

.pulse {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 12px rgba(0, 174, 239, 0.12);
  margin-bottom: 28px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 42px;
}

.section-heading p,
.text-block p,
.card p,
.contact-box p,
.hero-card p {
  color: var(--muted);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.card {
  padding: 28px;
  min-height: 250px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 174, 239, 0.35);
}

.icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  border-radius: 16px;
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 60px;
  align-items: start;
  background: var(--primary);
  color: white;
}

.split .eyebrow {
  color: #6bd8ff;
}

.split .text-block p {
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.08rem;
}

.zones {
  background: #ffffff;
}

.zone-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.zone-list div {
  padding: 24px;
  border-radius: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-weight: 800;
}

.contact {
  padding-top: 70px;
}

.contact-box {
  max-width: 940px;
  margin: 0 auto;
  padding: clamp(32px, 6vw, 64px);
  text-align: center;
}

.contact-note {
  margin-top: 24px;
  font-size: 0.95rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: white;
}

.site-footer strong {
  color: var(--text);
}

.site-footer a {
  color: var(--text);
  font-weight: 700;
}

@media (max-width: 900px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .cards-grid,
  .zone-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav {
    position: absolute;
    top: 78px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    padding: 20px;
    border-radius: 24px;
    background: white;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }
}

@media (max-width: 620px) {
  .section {
    padding: 72px 20px;
  }

  .cards-grid,
  .zone-list {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}