:root {
  --navy: #0b2d5c;
  --green: #22c55e;
  --teal: #14b8a6;
  --light: #f7fafc;
  --text: #1f2937;
  --muted: #64748b;
}

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

a { color: var(--navy); }

.hero {
  min-height: 92vh;
  padding: 28px 7%;
  background:
    linear-gradient(120deg, rgba(11,45,92,.95), rgba(20,184,166,.74)),
    url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1600&q=80') center/cover;
  color: white;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  width: 180px;
  max-width: 45vw;
  background: white;
  border-radius: 18px;
  padding: 10px 18px;
}

.nav-button,
.button {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-weight: 700;
}

.nav-button,
.button.primary {
  background: var(--green);
  color: white;
}

.button.secondary {
  border: 1px solid rgba(255,255,255,.8);
  color: white;
  margin-left: 10px;
}

.hero-content {
  max-width: 850px;
  padding-top: 110px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-weight: 700;
  font-size: .82rem;
  color: var(--teal);
}

.hero .eyebrow { color: #b8ffe1; }

h1 {
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 1.04;
  margin: 10px 0 22px;
}

h2 {
  color: var(--navy);
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.1;
  margin: 0 0 18px;
}

h3 { color: var(--navy); margin-top: 0; }

.intro {
  font-size: 1.22rem;
  max-width: 720px;
  color: rgba(255,255,255,.92);
}

.hero-actions { margin-top: 34px; }

.section {
  padding: 82px 7%;
}

.section-title { max-width: 760px; margin-bottom: 34px; }

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

.card,
.zone-box,
.contact-card {
  background: var(--light);
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 18px 45px rgba(15,23,42,.06);
}

.split {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 36px;
  align-items: center;
  background: #f8fafc;
}

.zone-box ul {
  margin: 0;
  padding-left: 20px;
  font-weight: 700;
}

.contact {
  text-align: center;
}

.contact-card {
  max-width: 520px;
  margin: 28px auto 0;
  background: white;
}

footer {
  padding: 24px 7%;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid #e2e8f0;
}

@media (max-width: 800px) {
  .cards,
  .split { grid-template-columns: 1fr; }
  .hero-content { padding-top: 70px; }
  .button.secondary { margin-left: 0; margin-top: 12px; }
}