body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
}

header {
  background-color: #181f39;
  padding: 15px;
  text-align: center;
}

header img {
  height: 60px;
}

/* Sección principal tipo banner */
.hero {
  background-color: #f4f4f4;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  margin: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.hero h1 {
  color: #181f39;
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.1rem;
  color: #333;
  margin: 5px 0;
}

.hero p strong {
  font-weight: bold;
  color: #181f39;
}

main {
  padding: 40px 20px;
  text-align: center;
}

main h1 {
  color: #181f39;
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 10px;
}

.subtitulo {
  margin-bottom: 30px;
  color: #555;
  font-size: 18px;
}

.categorias {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
}

.categoria {
  background-color: white;
  border: 1px solid #ddd;
  border-radius: 12px;
  width: 180px;
  height: 120px;
  text-decoration: none;
  color: #181f39;
  font-weight: bold;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: transform 0.2s, background-color 0.2s, color 0.2s;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.categoria:hover {
  background-color: #ed8015;
  color: white;
  transform: scale(1.05);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.categoria span {
  font-size: 30px;
  margin-bottom: 10px;
}

/* Adaptación móvil */
@media (max-width: 600px) {
  .categorias {
    flex-direction: column;
    align-items: center;
  }

  .categoria {
    width: 90%;
  }
}