.boolean-operations-modal .modal-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.boolean-operations-modal .boolean-options {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}

.boolean-operations-modal .boolean-option {
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    padding: 0.75rem;
    flex: 0 1 140px;
    min-width: 140px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    background-color: #fff;
}

.boolean-operations-modal .boolean-option:hover {
    border-color: #888;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.boolean-operations-modal .boolean-option.selected {
    border-color: #ff9f1c;
    box-shadow: 0 0 0 2px rgba(255, 159, 28, 0.35);
}

.boolean-operations-modal .boolean-option.disabled {
    cursor: default;
    opacity: 0.4;
    box-shadow: none;
}

.boolean-operations-modal .boolean-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f7f7f7;
    border-radius: 4px;
    padding: 0.25rem;
    min-height: 120px;
    margin-bottom: 0.5rem;
}

.boolean-operations-modal .boolean-preview-svg {
    width: 120px;
    height: 120px;
}

.boolean-operations-modal .boolean-preview-empty {
    font-size: 0.9rem;
    color: #666;
}

.boolean-operations-modal .boolean-label {
    font-weight: 600;
}

.boolean-operations-modal .boolean-empty-hint {
    margin: 0;
    color: #a94442;
}

.boolean-operations-modal .boolean-operations-subject-hint {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

.boolean-operations-modal .boolean-remove-sources {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.boolean-operations-modal .boolean-remove-sources .checkbox {
    margin: 0;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}