/* Core drag-and-drop styles shared across upload pages */
.dropzone {
    border: 2px dashed #ccc;
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    color: #666;
    transition: background-color 0.15s, border-color 0.15s;
    cursor: pointer;
}
.dropzone.dragover {
    background-color: #f8f8f8;
    border-color: #999;
    color: #333;
}
.dropzone .filename {
    font-weight: 600;
    margin-top: 8px;
    display: block;
}
.preview {
    margin-top: 10px;
}
.preview img {
    max-width: 200px;
    max-height: 160px;
    display: block;
    margin: 8px auto;
    border-radius: 4px;
}