.sp-accordion-section-items {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--sp-card-gap, 12px);
    align-items: flex-start;
}

.sp-accordion-section-card,
.sp-accordion-empty-dropzone {
    box-sizing: border-box;
    flex: 0 0 var(--sp-card-width, 140px);
    width: var(--sp-card-width, 140px);
    min-height: var(--sp-card-min-height, 110px);
}

.sp-accordion-empty-dropzone {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--sp-empty-border-color, #d0d0d0);
    border-radius: var(--sp-card-radius, 10px);
    background: var(--sp-empty-bg, #fafafa);
    color: var(--sp-empty-text-color, #999);
    padding: 12px;
}

.sp-accordion-empty-dropzone-content {
    text-align: center;
    font-size: 12px;
    line-height: 1.3;
    pointer-events: none;
}