/* Loader contenedor */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #0b67f1; 
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

/* Ocultar con animación */
#loader.hidden {
  opacity: 0;
  visibility: hidden;
}

/* Spinner circular */
.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

/* Animación de rotación */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Texto opcional */
.loader-text {
  color: #fff;
  font-weight: 500;
  font-size: 1.1rem;
}