.drop-zone{transition:all 0.3s ease}.drop-zone.dragover{border-color:#3b82f6;background-color:#eff6ff}.page-thumbnail{transition:all 0.2s ease}.page-thumbnail:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px rgb(0 0 0 / .1)}.page-thumbnail.selected{border-color:#3b82f6;box-shadow:0 0 0 3px rgb(59 130 246 / .3)}.progress-bar{transition:width 0.3s ease}.spreadsheet-cell:focus{outline:2px solid #3b82f6;z-index:10}.animate-fade-in{animation:fadeIn 0.5s ease-in-out}@keyframes fadeIn{from{opacity:0}to{opacity:1}}