.jpg2png-wrap { max-width:720px; margin:20px auto; font-family: Arial, sans-serif; }
.jpg2png-drop { border:2px dashed #bbb; padding:30px; text-align:center; border-radius:8px; cursor:pointer; background:#fafafa; transition:background .15s; }
.jpg2png-drop.dragover { background:#eef; border-color:#66a; }
.jpg2png-btn { background:#0073aa; color:#fff; border:none; padding:8px 12px; border-radius:4px; cursor:pointer; }
.jpg2png-list { margin-top:16px; }
.jpg2png-row { padding:8px 10px; border:1px solid #eee; margin-bottom:8px; border-radius:6px; display:flex; justify-content:space-between; align-items:center; }
.jpg2png-errors { color:#b00; margin-top:8px; }