frontend/src/ui/Tooltip.css

/* ── Tooltip primitive ──────────────────────────────────────────── */

.ui-tooltip-wrap {
  position: relative;
  display: inline-flex;
}

.ui-tooltip {
  position: absolute;
  z-index: var(--z-overlay);
  background: #0f0e0d;
  color: var(--color-fg);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  pointer-events: none;
  animation: ui-tooltip-in 0.15s var(--ease-out);
  max-width: 240px;
}

@keyframes ui-tooltip-in {
  from { opacity: 0; transform: translate(-50%, 4px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* placements */
.ui-tooltip--top {
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
}
.ui-tooltip--bottom {
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  animation: ui-tooltip-in-b 0.15s var(--ease-out);
}
@keyframes ui-tooltip-in-b {
  from { opacity: 0; transform: translate(-50%, -4px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}
.ui-tooltip--left {
  right: calc(100% + 6px);
  top: 50%;
  transform: translateY(-50%);
}
.ui-tooltip--right {
  left: calc(100% + 6px);
  top: 50%;
  transform: translateY(-50%);
}