body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f7f9fc;
  color: #1f2937;
}

.hero {
  background: linear-gradient(135deg, #6d5efc, #3ec7c1);
  color: white;
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  margin-bottom: 10px;
  font-size: 2.5rem;
}

.hero p {
  max-width: 700px;
  margin: 0 auto 20px auto;
}

.btn {
  display: inline-block;
  background: white;
  color: #3b3b98;
  padding: 12px 22px;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
}

.menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  background: #ffffff;
  padding: 16px;
  border-bottom: 1px solid #ddd;
}

.menu a {
  text-decoration: none;
  color: #374151;
  font-weight: 600;
}

.contenedor {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

section {
  background: white;
  margin-bottom: 20px;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.06);
}