.upload-box.dragover{border-color:#ff5e5e;background:#ffe5e5;transform:scale(1.02)}.file-item{display:flex;align-items:center;padding:12px 15px;background:#f9f9f9;border-radius:8px;margin-bottom:10px;box-shadow:0 2px 5px rgba(0,0,0,.05);position:relative}.file-icon{color:#ff8b8b;font-size:20px;margin-right:15px}.file-info{flex-grow:1}.file-name{font-weight:500;color:#232222;margin-bottom:5px}.file-size{font-size:12px;color:#888}.file-progress{width:100%;height:6px;background:#e0e0e0;border-radius:3px;margin-top:8px;overflow:hidden;display:none}.file-progress-bar{height:100%;width:0%;background:linear-gradient(90deg,#ff8b8b,#ff5e5e);border-radius:3px;transition:width .4s ease}.file-status{font-size:12px;margin-top:5px;display:none}.file-status.converting{color:#ff8b8b}.file-status.completed{color:#0a7a31;font-weight:600}.file-actions{display:flex;align-items:center;gap:10px}.file-remove{color:#ff5e5e;cursor:pointer;padding:5px;font-size:18px}.file-download{color:#0a7a31;cursor:pointer;padding:5px;font-size:18px;display:none}.app-footer{background:linear-gradient(to right,#232222,#3a3a3a);color:white;text-align:center;padding:25px;font-size:16px;margin-top:30px}.app-footer a{color:#ff8b8b;text-decoration:none;font-weight:600}.app-footer a:hover{text-decoration:underline}@media (max-width:768px){.file-item{flex-direction:column;align-items:flex-start}.file-actions{align-self:flex-end;margin-top:10px}}