/* Fotografías reales de proyectos usadas como marca de agua. */
.about {
  background-image:
    linear-gradient(rgba(8, 47, 54, .91), rgba(8, 47, 54, .91)),
    url("assets/cableado-estructurado.webp");
  background-position: center;
  background-size: cover;
}

.services {
  background-image:
    linear-gradient(rgba(255, 255, 255, .94), rgba(255, 255, 255, .94)),
    url("assets/centro-datos.webp");
  background-position: center;
  background-size: cover;
}

.advantages {
  background-image:
    linear-gradient(rgba(245, 247, 246, .90), rgba(245, 247, 246, .90)),
    url("assets/proyecto-infraestructura.webp");
  background-position: center;
  background-size: cover;
}

.contact {
  background-image:
    linear-gradient(135deg, rgba(0, 62, 67, .92), rgba(0, 99, 95, .88)),
    url("assets/tablero-electrico.webp");
  background-position: center;
  background-size: cover;
}

.advertising-copy {
  background-image:
    linear-gradient(rgba(0, 76, 78, .93), rgba(0, 76, 78, .93)),
    url("assets/publicidad-comercial.webp");
  background-position: center;
  background-size: cover;
}

.service-grid article:nth-child(5) {
  background-image:
    linear-gradient(rgba(255, 255, 255, .94), rgba(255, 255, 255, .94)),
    url("assets/infraestructura-electrica.webp");
  background-position: center;
  background-size: cover;
}

@media (max-width: 680px) {
  .about, .services, .advantages, .contact {
    background-position: center;
  }
}