.etapas {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  list-style: none;
  padding: 0;
}
.etapas li {
  flex: 1;
  text-align: center;
  font-weight: bold;
  color: #ccc;
  position: relative;
}
.etapas li::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -50%;
  width: 100%;
  height: 2px;
  background: #ccc;
  z-index: -1;
}
.etapas li:last-child::after {
  display: none;
}
.etapas li.activa {
  color: #00a25a;
}
.etapas li.activa::after {
  background: #00a25a;
}

/* Oculta completamente el input “real”  */
.sr-only {
  position:absolute!important;
  width:1px!important;
  height:1px!important;
  padding:0!important;
  margin:-1px!important;
  overflow:hidden!important;
  clip:rect(0,0,0,0)!important;
  white-space:nowrap!important;
  border:0!important;
}