.upload-area.dragover{border-color:#28a745;background:linear-gradient(145deg,#e8f5e8,#f0fff0);transform:scale(1.02)}.size-info{font-weight:600;padding:8px 15px;border-radius:20px;display:inline-block;margin:5px}.size-original{background:linear-gradient(135deg,#ff7b7b,#ff4757);color:white}.size-compressed{background:linear-gradient(135deg,#2ed573,#1e90ff);color:white}.stat-card{background:linear-gradient(135deg,#667eea,#764ba2);color:white;padding:20px;border-radius:15px;text-align:center}.stat-value{font-size:1.5rem;font-weight:700;margin-bottom:5px}.stat-label{font-size:.9rem;opacity:.9}