.nav-item.is-disabled,
.nav-item.is-disabled:hover,
.nav-item.is-disabled:focus,
.nav-item.is-disabled:focus-visible,
.nav-item:disabled,
.nav-item:disabled:hover,
.nav-item:disabled:focus,
.nav-item:disabled:focus-visible {
  pointer-events: none;
  user-select: none;
  cursor: not-allowed;
  opacity: .56;
  border-color: rgba(132, 137, 128, .38);
  background: rgba(38, 40, 36, .72);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, .2);
  color: #9a9f95;
  filter: grayscale(.7);
}

.nav-item.is-disabled::after,
.nav-item:disabled::after {
  background: rgba(166, 170, 159, .16);
}

.nav-item.is-disabled span,
.nav-item:disabled span {
  color: inherit;
}