.drop-zone{border:2px dashed #3b82f6;border-radius:.5rem;transition:all 0.3s ease}.drop-zone.dragover{border-color:#10b981;background-color:rgb(16 185 129 / .1)}.page-thumbnail{transition:all 0.2s ease}.page-thumbnail:hover{transform:scale(1.02);box-shadow:0 4px 6px -1px rgb(0 0 0 / .1),0 2px 4px -1px rgb(0 0 0 / .06)}.page-thumbnail.active{border-color:#3b82f6;box-shadow:0 0 0 2px rgb(59 130 246 / .5)}