.copy-footnote {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1;
  padding: 0;
  margin-left: 0.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, transform 0.12s ease;
}

.copy-footnote:hover   { color: var(--accent-2); transform: scale(1.1); }
.copy-footnote:active  { transform: scale(0.95); }
.copy-footnote:focus-visible { outline: none; box-shadow: none; }
.copy-footnote.copied { color: #2e7d32; }

.copy-footnote i { pointer-events: none; }