:root {
  --blue:#075985;
  --sky:#0ea5e9;
  --green:#16a34a;
  --orange:#f97316;
  --dark:#0f172a;
  --light:#f8fafc;
  --card:#ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, #e0f2fe, #f8fafc 45%, #dcfce7);
  color: var(--dark);
}

header {
  background: linear-gradient(90deg, var(--blue), var(--sky), var(--green));
  color: white;
  padding: 22px 18px;
  text-align: center;
}

.logo {
  font-size: 34px;
  font-weight: 900;
  letter-spacing: .5px;
}

.tagline {
  font-size: 18px;
  margin-top: 6px;
}

nav {
  background: #0f172a;
  padding: 12px;
  text-align: center;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
  margin: 0 14px;
}

.hero {
  padding: 58px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 44px;
  margin: 0 0 14px;
  line-height: 1.05;
}

.hero p {
  font-size: 21px;
  max-width: 820px;
  margin: 0 auto 26px;
}

.cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  background: var(--orange);
  color: white;
  padding: 15px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 900;
  box-shadow: 0 10px 22px rgba(0,0,0,.18);
}

.button.secondary {
  background: var(--blue);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 34px 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.card {
  background: var(--card);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 12px 28px rgba(15,23,42,.12);
  border-top: 7px solid var(--sky);
}

.card.green { border-top-color: var(--green); }
.card.orange { border-top-color: var(--orange); }
.card.blue { border-top-color: var(--blue); }

.card h3 {
  margin-top: 0;
  font-size: 23px;
}

.highlight {
  background: #0f172a;
  color: white;
  border-radius: 24px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 14px 30px rgba(0,0,0,.18);
}

.highlight h2 {
  margin-top: 0;
  font-size: 34px;
}

.price {
  font-size: 46px;
  font-weight: 900;
  color: #fbbf24;
}

.list {
  line-height: 1.8;
  font-size: 18px;
}

.contact-box {
  background: white;
  max-width: 720px;
  margin: 0 auto;
  padding: 28px;
  border-radius: 22px;
  box-shadow: 0 12px 28px rgba(15,23,42,.14);
}

footer {
  background: #0f172a;
  color: white;
  text-align: center;
  padding: 24px 14px;
  margin-top: 35px;
}

.small {
  font-size: 14px;
  opacity: .85;
}

@media (max-width: 700px) {
  .hero h1 { font-size: 34px; }
  .hero p { font-size: 18px; }
  nav a { display: inline-block; margin: 8px 10px; }
}