.is-active {
  border-left-color: var(--brand-ember);
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.is-hidden {
  display: none;
}

.is-collapsed {
  transform: translateY(140%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--tempo), opacity var(--tempo);
}

.is-expanded {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  transition: transform var(--tempo), opacity var(--tempo);
}

.is-busy {
  opacity: 0.6;
  pointer-events: none;
}

.is-error {
  border-color: var(--brand-ember);
  background: rgba(217, 72, 15, 0.06);
}

.is-lifted {
  box-shadow: 0 0.375rem 1.25rem rgba(15, 23, 42, 0.14);
}

@media (max-width: 47.9375rem) {
  .qlist button.is-active {
    border-left-color: transparent;
    border-bottom-color: var(--brand-ember);
  }
}

@media (prefers-reduced-motion: reduce) {
  .is-collapsed,
  .is-expanded {
    transition: none;
  }
}