// Add copy buttons to code blocks and auto-scroll
function addCopyButtons() {
  document.querySelectorAll('pre code').forEach((codeBlock) => {
    if (codeBlock.parentElement.querySelector('.copy-btn')) return;
    const btn = document.createElement('button');
    btn.className = 'copy-btn';
    btn.textContent = 'Copiar';
    btn.addEventListener('click', () => {
      navigator.clipboard.writeText(codeBlock.innerText);
      btn.textContent = 'Copiado';
      setTimeout(()=> btn.textContent = 'Copiar', 1500);
    });
    codeBlock.parentElement.insertBefore(btn, codeBlock);
  });
}
window.addEventListener('load', () => {
  setInterval(addCopyButtons, 800);
});