document.addEventListener('DOMContentLoaded', () => {
  const btn = document.getElementById('analyze');
  const result = document.getElementById('result');
  if (btn) {
    btn.addEventListener('click', () => {
      chrome.tabs.query({ active: true, currentWindow: true }, (tabs) => {
        if (tabs[0]) {
          chrome.tabs.sendMessage(tabs[0].id, { action: 'analyze' }, (response) => {
            if (chrome.runtime.lastError) {
              result.textContent = 'Could not connect to page. Try refreshing.';
              return;
            }
            result.textContent = response ? JSON.stringify(response, null, 2) : 'No data';
          });
        }
      });
    });
  }
});