/* Hero principal */
#inicio .hero {
  background: url('ruta/a/tu/imagen.jpg') center/cover no-repeat;
  color: white;
  text-align: center;
  padding: 100px 20px;
  position: relative;
}

#inicio .hero::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.55); /* oscurece la imagen */
  z-index: 1;
}

#inicio .hero .contenido {
  position: relative;
  z-index: 2;
}

/* Tarjetas */
.card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 25px rgba(0,0,0,0.2);
}

.card i {
  color: #007bff;
}

/* Botones */
.btn-primary {
  background-color: #007bff;
  border: none;
  border-radius: 30px;
  padding: 10px 20px;
}

.btn-primary:hover {
  background-color: #0056b3;
}

/* Estilos responsivos */
@media (max-width: 768px) {
  .card {
    margin-bottom: 20px;
  }

  .card-img-top {
    max-height: 200px;
    object-fit: cover;
  }

  .display-4 {
    font-size: 2rem;
  }

  .lead {
    font-size: 1rem;
  }

  #simulacion-container {
    height: 300px !important;
  }

  .swal2-popup {
    width: 95% !important;
    margin: 10px;
    padding: 10px;
  }

  .swal2-html-container {
    font-size: 14px;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 10px;
  }

  .card {
    margin: 10px 0;
  }

  .btn {
    width: 100%;
    margin: 5px 0;
  }

  .row-cols-md-4 {
    margin: 0;
  }

  .col {
    padding: 5px;
  }

  #planetas .card-img-top {
    height: 150px;
    object-fit: cover;
  }

  .swal2-title {
    font-size: 1.2rem !important;
  }
}

/* Ajustes para imágenes de planetas */
.card-img-top {
  aspect-ratio: 1/1;
  object-fit: cover;
  background-color: #000;
}

/* Mejoras para la sección de planetas */
#planetas .card {
  background: linear-gradient(145deg, #ffffff, #f0f0f0);
  border: none;
  overflow: hidden;
}

#planetas .card-img-top {
  max-height: 200px;
  width: 100%;
  object-fit: contain;
  padding: 1rem;
  background-color: #000;
  transition: transform 0.3s ease;
}

#planetas .card:hover .card-img-top {
  transform: scale(1.05);
}

#planetas .btn-outline-primary {
  border-radius: 20px;
  transition: all 0.3s ease;
}

/* Mejoras de accesibilidad */
.btn {
  min-height: 44px;
  min-width: 44px;
  padding: 8px 16px;
}

/* Ajustes para SweetAlert2 responsivo */
.swal2-modal {
  width: 90% !important;
  max-width: 500px !important;
}

.swal2-content {
  padding: 10px;
}

/* Ajustes para la simulación */
#simulacion-container {
  max-width: 100%;
  margin: 0 auto;
  border-radius: 8px;
  background-color: #f8f9fa;
}

/* Animaciones suaves */
.seccion {
  transition: all 0.3s ease;
}

.card, .btn {
  transition: all 0.2s ease-in-out;
}

/* Asegurar que los contenedores estén bien cerrados visualmente */
.container-fluid {
  overflow-x: hidden;
}

.row {
  margin-right: 0;
  margin-left: 0;
}