body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.file-drop-zone{border:2px dashed #ccc;border-radius:4px;cursor:pointer;padding:20px;text-align:center;transition:border-color .3s ease}.file-drop-zone:hover{border-color:#1976d2}.file-drop-zone.active{background-color:#f0f8ff;border-color:#1976d2}.download-progress{background:#fff;border-radius:8px;bottom:20px;box-shadow:0 4px 6px rgba(0,0,0,.1);min-width:300px;padding:16px;position:fixed;right:20px;z-index:1000}@media (max-width:600px){.download-progress{bottom:10px;left:10px;min-width:auto;right:10px}}.App{text-align:center}.App-header{background-color:#282c34;color:#fff;padding:20px}.file-card{transition:transform .2s ease-in-out}.file-card:hover{box-shadow:0 4px 8px rgba(0,0,0,.1);transform:translateY(-2px)}.upload-area{border:2px dashed #ccc;border-radius:8px;padding:2rem;text-align:center;transition:all .3s ease}.upload-area:hover{background-color:#f5f5f5;border-color:#1976d2}.stats-card{padding:1.5rem;text-align:center}.admin-sidebar{background-color:#f5f5f5}@media (max-width:768px){.stats-card,.upload-area{padding:1rem}}