:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f4f7fb;
  color: #1f2937;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  line-height: 1.6;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  padding: 4.5rem 0 5rem;
  background: linear-gradient(135deg, #0054d1 0%, #1f8ef1 100%);
  color: #fff;
  text-align: center;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.5rem, 4vw, 4rem);
}

.hero p {
  max-width: 640px;
  margin: 0 auto 1.75rem;
  font-size: 1.1rem;
  opacity: 0.95;
}

.site-nav {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.nav-inner {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding: 0.9rem 0;
}

.nav-inner a {
  text-decoration: none;
  color: #334155;
  font-weight: 600;
}

.section {
  padding: 3rem 0;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  padding: 1.75rem;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.card h3 {
  margin-top: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  background: #0f63ff;
  color: #fff;
  border: none;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}

.button.secondary {
  background: #e2e8f0;
  color: #1f2937;
}

.contact-section {
  text-align: center;
}

.footer {
  padding: 1.5rem 0;
  text-align: center;
  color: #64748b;
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .hero {
    padding: 3.5rem 0 4rem;
  }

  .nav-inner {
    flex-direction: column;
    gap: 0.75rem;
  }
}