function WhatsAppFab() {
  return (
    <a href="https://wa.me/5511996149633?text=Olá! Vim pelo site da Bitsz e gostaria de uma consultoria para minha empresa."
       target="_blank" rel="noreferrer"
       className="pulse-wa"
       style={{
         position: 'fixed', bottom: 32, right: 32, zIndex: 100,
         background: 'var(--green-500)',
         color: 'var(--night-950)',
         width: 64, height: 64,
         borderRadius: '50%',
         display: 'flex', alignItems: 'center', justifyContent: 'center',
         fontSize: 30,
         textDecoration: 'none',
         boxShadow: '0 12px 32px rgba(0,0,0,0.4)',
       }}>
      <i className="fab fa-whatsapp"></i>
    </a>
  );
}
window.WhatsAppFab = WhatsAppFab;