#umf-app {
    display: flex;
    gap: 30px;
}
#folder-ui {
    width: 300px;
    border-right: 1px solid #ccc;
}
#folder-ui ul {
    list-style: none;
    padding-left: 20px;
}
#folder-ui li {
    margin: 4px 0;
}
.folder-item {
    cursor: pointer;
    font-weight: 500;
}
#media-ui {
    flex: 1;
    padding-left: 20px;
}

.folder-item {
    cursor: pointer;
    padding: 5px;
}

.folder-item.selected {
    background-color: #e3f2fd;
    border-left: 3px solid #2196f3;
}