.share-button {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.share-button__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-circle);
  transition: color 0.15s ease, transform 0.1s ease;
}

.share-button__btn:hover {
  color: var(--color-text-base);
}

.share-button__btn:active {
  transform: scale(0.96);
}

.share-button__tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 10px;
  background-color: var(--color-bg-card);
  color: var(--color-text-base);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-subtle);
  box-shadow: var(--shadow-heavy);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, color 0.15s ease, background-color 0.15s ease;
  z-index: 10;
}

.share-button__tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-bg-card);
}

.share-button:hover .share-button__tooltip,
.share-button:focus-within .share-button__tooltip,
.share-button.is-copied .share-button__tooltip {
  opacity: 1;
}

.share-button.is-copied .share-button__tooltip {
  color: var(--color-accent);
}