#pbs-multistep section {
  display: none;
  transition: opacity 0.3s ease-in-out;
  opacity: 0;
}
#pbs-multistep section.active {
  display: block;
  opacity: 1;
}

#pbs-progress {
  display: flex;
  justify-content: space-between;
  margin: 15px 0 2px;
  font-weight: 500;
}
#pbs-progress span {
  flex: 1;
  text-align: center;
  padding: 8px 5px;
  border-bottom: 3px solid #ccc;
  color: #777;
}
#pbs-progress span.active {
  color: #000;
  border-color: #4CAF50;
}

#pbs-data-set {
  display: flex;
  justify-content: space-between;
  margin: 0px 0 25px;
}
#pbs-data-set span {
  font-size: 12px;
  flex: 1;
  text-align: center;
  padding: 0px 5px;
  color: #777;
}

.pbs-nav-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
}
.pbs-btn-next,
.pbs-btn-prev {
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  border-radius: 6px;
}
.pbs-btn-next { background: #4CAF50; color: #fff; }
.pbs-btn-prev { background: #ccc; }