.main.main-page.has-breadcrumb {
  position: relative;
  overflow: hidden;
}

.main.main-page.has-breadcrumb::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;

  /* Capas suaves tipo ondas */
  background-image:
    radial-gradient(
      circle at 20% 85%,
      rgba(0,0,0,0.07),
      transparent 55%
    ),
    radial-gradient(
      circle at 80% 75%,
      rgba(0,0,0,0.05),
      transparent 60%
    ),
    radial-gradient(
      circle at 50% 95%,
      rgba(0,0,0,0.04),
      transparent 65%
    );

  opacity: 0.9;
}

/* Contenido por encima */
.main.main-page.has-breadcrumb > * {
  position: relative;
  z-index: 1;
}