.soporte-fab{
  position: fixed;      /* Fijo al viewport */
  right: 20px;
  bottom: 20px;
  z-index: 99999;

  display: inline-flex; /* Tamaño compacto */
  width: 60px;
  height: 60px;
  align-items: center;
  justify-content: center;

  border-radius: 50%;
  background: #f0f0f0;
  box-shadow: 0 4px 6px rgba(0,0,0,.2);
  text-decoration: none;
  transition: transform .2s ease;
}
.soporte-fab:hover{ transform: scale(1.1); }

.soporte-fab .tooltip-text{
  position: absolute;   /* Relativo al <a> */
  right: 70px;          /* A la izquierda de la “burbuja” */
  bottom: 50%;
  transform: translateY(50%);

  background: #333;
  color: #fff;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.2;
  white-space: nowrap;

  visibility: hidden;
  opacity: 0;
  transition: opacity .2s;
}
.soporte-fab:hover .tooltip-text{
  visibility: visible;
  opacity: 1;
}

#img_soporte{
  height: 60px;
  width: 60px;
}