.btn-selected {
    border: 2px solid #ccc;
    border-radius: 50%;
    padding: 8px;
    transition: all 0.3s;
}

.btn-selected:hover {
  transform: scale(1) !important;
}

#top-bar {
  transition: transform 0.5s ease-in-out;
}

.visible-bar {
  transform: translateY(0);
}

.hidden-bar {
  transform: translateY(-100%);
}