.file-upload {
    border: 2px dashed #acc;
    padding: 20px;
    width: 300px;
    margin: auto;
    z-index: 20;
    text-align: center;
    background-color: #dee;
}
.file-upload-dragover {
    border: 1px solid teal;
    background-color: #eff;
}

.file-upload-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent overlay */
    z-index: 10; /* Ensure it's above other content but below the drag target */
    pointer-events: none; /* Allows clicks through to elements below */
}