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

.tip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--text-primary);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
  z-index: 50;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(31, 38, 135, 0.12);
}

.tip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: rgba(255, 255, 255, 0.75);
}

.wrap:hover .tip,
.wrap:focus-within .tip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}