Homework / test English to Spanish Social Sciences Government / Politics

Hello everybody! I am translating the chapter of a book as part of an assignment. I have a doubt as regards this phrase, in this context:

Classical totalitarianism denatures into a form of the authoritarianism of party and leader; this is characterized by a totalitarian inlay at the official level accompanied by the regime’s simultaneous distancing, not only from small groups of the so-called ‘dissidents’ within circles of the intelligentsia, but from broad strata of the population as well.

Is there another appropriate term than 'incrustación' for 'inlay'? It would be great if someone specialized in politics could give me a hand.

Thanks in advance!