.boton-microfono {
  background: rgba(30, 144, 255, 0.15);
  border: none;
  border-radius: 50%;
  padding: 6px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  margin-left: 5px;
  vertical-align: middle;
  box-shadow: 0 1px 3px rgba(30,144,255,0.08);
}
.boton-microfono:hover {
  background: rgba(30, 144, 255, 0.35);
  box-shadow: 0 2px 8px rgba(30,144,255,0.18);
}
.boton-microfono.activo {
  background: rgba(0, 200, 83, 0.7) !important; /* Verde más fuerte y visible */
  box-shadow: 0 2px 8px rgba(0,200,83,0.28) !important;
  border: 2px solid #00c853 !important;
}
.boton-microfono img {
  width: 20px;
  height: 20px;
  display: block;
}