/*
 * copy：構造だけ（ボタンそのものの見た目は各サイトのボタンの型を使う）
 * 受ける変数：--part-tip-bg / --part-tip-fg（「コピーしました」の札）/ --part-focus
 */
.part-copy {
  position: relative;
  cursor: pointer;
}

.part-copy:focus-visible {
  outline: 2px solid var(--part-focus, #1a1a1a);
  outline-offset: 2px;
}

.part-copy__tip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  z-index: 10;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--part-tip-bg, #222);
  color: var(--part-tip-fg, #fff);
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.02em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 0);
  transition: opacity 0.2s, visibility 0s 0.2s;
}

.part-copy__tip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  border: 5px solid transparent;
  border-top-color: var(--part-tip-bg, #222);
  transform: translateX(-50%);
}

.part-copy.is-copied .part-copy__tip {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.2s, visibility 0s;
}

.part-copy__live {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.part-copy[data-part-motion="reduce"],
.part-copy[data-part-motion="reduce"] *,
.part-copy[data-part-motion="reduce"] *::before,
.part-copy[data-part-motion="reduce"] *::after {
  transition: none !important;
  animation: none !important;
}