/* TATUARTE R10-HF9: un unico fondo de tinta en las tres superficies interiores. */
body:has(#directorio-estudios),body:has(.tu-page){
  background-color:#08070d!important;
  background-image:linear-gradient(180deg,rgba(8,7,13,.36),rgba(8,7,13,.74) 65%,rgba(8,7,13,.86)),url('/images/tatuarte-r10-hf4b-tinta-fondo.webp')!important;
  background-size:cover!important;
  background-position:center top!important;
  background-repeat:no-repeat!important;
  background-attachment:fixed!important;
}
/* Los contenedores antiguos no deben tapar la imagen. */
body:has(.tu-page) section.tu-page,
body:has(#directorio-estudios) #directorio-estudios.tat-r10-hf4-directory{
  background:transparent!important;
}
/* Desactivar las capas duplicadas de HF5/HF7: un solo fondo en body. */
body:has(#directorio-estudios)::before,
body:has(.tu-page)::before,
#directorio-estudios.tat-r10-hf4-directory::before,
#directorio-estudios .tat-r10-hf4-head::before{content:none!important;animation:none!important}
@media (prefers-reduced-motion:no-preference){
  body:has(#directorio-estudios),body:has(.tu-page){animation:tat-hf9-ink 42s ease-in-out infinite alternate}
}
@keyframes tat-hf9-ink{
  0%{background-position:49% top}
  50%{background-position:51% top}
  100%{background-position:50% top}
}
@media (prefers-reduced-motion:reduce){body:has(#directorio-estudios),body:has(.tu-page){animation:none!important;background-attachment:scroll!important}}
@media(max-width:700px){body:has(#directorio-estudios),body:has(.tu-page){background-attachment:scroll!important}}