.selection-cards-container {
    height: 400px;
    overflow-y: auto;
    padding-right: 15px;
}
.selection-cards-container::-webkit-scrollbar { width: 8px; }
.selection-cards-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}
.selection-cards-container::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
}
.selection-cards-container::-webkit-scrollbar-thumb:hover { background: #555; }

@media (max-width: 768px) {
    .selection-cards-container { height: 300px; }
}