.fr-background-alt--grey {
    --idle:transparent;
    --hover:var(--background-alt-grey-hover)!important;
    --active:var(--background-alt-grey-active)!important;
    background-color:var(--background-alt-grey)!important
}
/* quand la case est désactivée */
.checkbox-cgu[aria-disabled="true"] + .fr-label {
    color: var(--text-disabled-grey);
    cursor: not-allowed;
    opacity: 1;
}