    margin-bottom: 10px;
}
.class-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}
.class-tag {
    background: #f0f0f0;
    padding: 6px 12px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}
.class-tag:hover {
    background: #e0e0e0;
}
.class-tag.selected {
    background: #3498db;
    color: #fff;
}
.class-tag.selected:hover {
    background: #2980b9;
}
#overview-modal .modal-content {
    wid