(function() {
  const btn = document.createElement('button');
  btn.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path></svg>';
  btn.style.cssText = 'position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:#2563eb;color:white;border:none;cursor:pointer;box-shadow:0 10px 25px rgba(0,0,0,0.2);z-index:9999';
  
  const modal = document.createElement('div');
  modal.style.cssText = 'position:fixed;bottom:100px;right:24px;width:384px;height:600px;background:white;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,0.3);z-index:9999;display:none;overflow:hidden';
  
  const iframe = document.createElement('iframe');
        iframe.style.cssText = 'width:100%;height:100%;border:none';
        iframe.src = 'https://servicetotal.base44.app/EmbedChat';
  
  modal.appendChild(iframe);
  
  btn.onclick = () => {
    modal.style.display = modal.style.display === 'none' ? 'block' : 'none';
  };
  
  document.body.appendChild(btn);
  document.body.appendChild(modal);
})();