export async function copyToClipboard(text: string): Promise<boolean> {
  try {
    if (navigator.clipboard?.writeText) {
      await navigator.clipboard.writeText(text);
      return true;
    }
  } catch {}
  const textarea = document.createElement('textarea');
  textarea.value = text;
  textarea.style.position = 'fixed';
  textarea.style.opacity = '0';
  document.body.appendChild(textarea);
  textarea.select();
  const ok = document.execCommand('copy');
  document.body.removeChild(textarea);
  return ok;
}