body {
  margin: 0;
  padding: 0;
  font-family: 'Montserrat', sans-serif;
  background: #ffffff;
}

/* IMAGENS RESPONSIVAS */
.hero-image,
.middle-image,
.bottom-image {
  width: 100%;
  height: auto;
  display: block;
}

/* CONTAINER DO BOTÃO WHATSAPP */
.whatsapp-container {
  width: 100%;
  display: flex;
  justify-content: center;
  position: fixed;
  bottom: 20px;
  left: 0;
  z-index: 9999;
}

/* BOTÃO WHATSAPP */
.whatsapp-button {
  background: #25D366;
  color: #ffffff;
  text-decoration: none;
  padding: 14px 26px;
  font-size: 18px;
  border-radius: 40px;
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
  transition: 0.2s ease;
}

.whatsapp-button:hover {
  background: #1EBE5D;
}

/* ===========================
    VERSÃO MOBILE
============================*/

@media (max-width: 768px) {

  .whatsapp-button {
    padding: 14px 24px;
    font-size: 16px;
  }

  .whatsapp-container {
    bottom: 12px;
  }
}

/* ===========================
    VERSÃO SUPER MOBILE
============================*/

@media (max-width: 480px) {

  .whatsapp-button {
    padding: 12px 22px;
    font-size: 15px;
  }

  .whatsapp-container {
    bottom: 10px;
  }
}