.global-custom-tooltip {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  top: 100%;
  left: 0;
  background: #1e293b;
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 999999;
  pointer-events: none;
}
.global-custom-tooltip::before {
  content: '';
  position: absolute;
  border-style: solid;
}
.global-custom-tooltip.tooltip-top::before {
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px 6px 0 6px;
  border-color: #1e293b transparent transparent transparent;
}
.global-custom-tooltip.tooltip-bottom::before {
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 0 6px 6px 6px;
  border-color: transparent transparent #1e293b transparent;
}
.global-custom-tooltip.tooltip-left::before {
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  border-width: 6px 0 6px 6px;
  border-color: transparent transparent transparent #1e293b;
}
.global-custom-tooltip.tooltip-right::before {
  left: -5px;
  top: 50%;
  transform: translateY(-50%);
  border-width: 6px 6px 6px 0;
  border-color: transparent #1e293b transparent transparent;
}
.global-custom-tooltip.visible {
  visibility: visible;
  opacity: 1;
}

/* Pure CSS Custom Tooltip via data-tooltip */
.custom-tooltip {
  position: relative;
}
.custom-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%) scale(0.85);
  background: #1e293b;
  color: #ffffff;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  z-index: 9999;
}
.custom-tooltip::before {
  content: '';
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%) scale(0.85);
  border-width: 5px;
  border-style: solid;
  border-color: #1e293b transparent transparent transparent;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 9999;
}
.custom-tooltip:hover::after,
.custom-tooltip:hover::before {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}