.drop-zone.drag-over{border-color:var(--primary-color);background:var(--primary-light);transform:scale(1.02)}.preview-image{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;box-shadow:var(--shadow-sm);transition:all .3s ease}.preview-image:hover{transform:scale(1.05);box-shadow:var(--shadow-md)}