.editorjs-columns {
    display: flex;
    gap: 20px;
}

.editorjs-column {
    flex: 1;
    min-width: 0;
    padding: 10px;
    box-sizing: border-box;
}

/* Optional: adattamento per mobile */
@media (max-width: 600px) {
    .editorjs-columns {
        flex-direction: column;
        gap: 10px;
    }
}