.app-tooltip {
  position: fixed;
  z-index: 10000;
  max-width: min(280px, calc(100vw - 16px));
  padding: 6px 8px;
  border-radius: 6px;
  background: #111827;
  box-shadow: 0 4px 14px #11182733;
  color: #fff;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.35;
  text-align: center;
  overflow-wrap: anywhere;
  pointer-events: none;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 80ms ease, transform 80ms ease;
}

.app-tooltip[data-visible] {
  opacity: 1;
  transform: translateY(0);
}

.app-tooltip[hidden] {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .app-tooltip { transition: none; }
}