.drop-zone {
    border: 2px dashed #007bff;
    border-radius: 5px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
}

.drop-zone.dragover {
    background-color: #f1f1f1;
    border-color: #0056b3;
}

.drop-zone .drop-zone-caption {
    margin-top: 10px;
    font-size: 16px;
    color: #555;
}

.drop-zone .btn-file {
    margin-top: 10px;
}

.drop-zone input[type="file"] {
    display: none;
}
