:root {
  --primary: #1e3a8a;
  --primary-light: #4776e6;
  --accent: #00c6ff;
  --bg: #f5f7fb;
  --text: #0f172a;
  --muted: #475569;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

header {
  background: white;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.08);
  position: sticky;
  top: 0;
  z-index: 10;
}

.container {
  width: min(1200px, 90%);
  margin: 0 auto;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

nav a.cta {
  padding: 0.6rem 1.4rem;
  background: var(--primary);
  color: white;
  border-radius: 999px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: center;
  padding: 4rem 0 3rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: 1rem;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
}

.hero .card {
  background: white;
  border-radius: 1.25rem;
  padding: 1.5rem;
  box-shadow: 0 15px 35px rgba(30, 58, 138, 0.15);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(71, 118, 230, 0.15);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
}

section {
  padding: 3rem 0;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

section p.lead {
  color: var(--muted);
  max-width: 640px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: white;
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

.card h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 198, 255, 0.15);
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-panel {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border-radius: 1.5rem;
  padding: 2.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  align-items: center;
}

.cta-panel button {
  background: white;
  color: var(--primary);
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.faq details {
  background: white;
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}

footer {
  background: white;
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

footer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

@media (max-width: 640px) {
  nav ul {
    flex-wrap: wrap;
    gap: 1rem;
  }
  .cta-panel {
    text-align: center;
  }
}