:root {
  --tt-in-dur: 150ms;
  --tt-out-dur: 50ms;
  --tt-scale: 0.98;
  --tt-delay: 80ms;
  --tt-in-ease: ease-out;
  --tt-out-ease: ease-out;
  --tt-move-dur: 160ms;
  --tt-move-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --tt-bg: #222222;
  --tt-fg: #f0f0f0;
}

.t-tt-group {
  position: relative;
  display: inline-flex;
}

.t-tt {
  position: absolute;
  z-index: 10;
  bottom: calc(100% + 8px);
  left: 0;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 0;
  overflow: hidden;
  translate: var(--tt-x, 0px) 0;
  scale: var(--tt-scale);
  transform-origin: 50% 100%;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--tt-bg);
  color: var(--tt-fg);
  font-size: 12px;
  line-height: 16px;
  white-space: nowrap;
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.06),
    0 2px 6px 0 rgba(0, 0, 0, 0.05),
    0 4px 42px 0 rgba(0, 0, 0, 0.06);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--tt-out-dur) var(--tt-out-ease),
    scale var(--tt-out-dur) var(--tt-out-ease),
    translate var(--tt-move-dur) var(--tt-move-ease);
}

.t-tt[data-show="true"] {
  opacity: 1;
  scale: 1;
  transition:
    opacity var(--tt-in-dur) var(--tt-in-ease) var(--tt-delay),
    scale var(--tt-in-dur) var(--tt-in-ease) var(--tt-delay),
    translate var(--tt-move-dur) var(--tt-move-ease);
}

.t-tt-text { white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  .t-tt { transition: none !important; }
}