.tooltip {
  position: relative;
  cursor: help;
  border-bottom: 1px dotted #60a5fa;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tooltip:hover,
.tooltip:focus {
  color: #3b82f6;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #e0f0ff;
  color: #1e3a8a;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 1000;
  box-shadow: 0 6px 24px rgba(30, 58, 138, 0.06);
  border: 1px solid #93c5fd;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  width: 200px;
}

.tooltip:hover::after,
.tooltip:focus::after {
  opacity: 1;
  visibility: visible;
}

@media screen and (max-width: 768px) {
  .tooltip::after {
    padding: 6px 10px;
    bottom: calc(100% + 6px);
  }
}