body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1f2933;
  background: #f9fafb;
}

.hero {
  padding: 5rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, #0f766e, #064e3b);
  color: white;
}

.hero .btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #ecfeff;
  color: #064e3b;
  text-decoration: none;
  font-weight: 600;
  border-radius: 6px;
}

section {
  padding: 4rem 2rem;
  max-width: 1000px;
  margin: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

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


footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  color: #6b7280;
}