body { font-family: Arial, sans-serif; }
#dropZone {
    border: 2px dashed #4caf50;
    padding: 2em;
    text-align: center;
    color: #888;
    cursor: pointer;
    background: #f8f9fa;
    transition: background 0.2s;
}
.progress-bar-bg {
    width: 100%;
    background: #ddd;
    border-radius: 5px;
    height: 20px;
    margin-bottom: 0.5em;
}
.progress-bar {
    height: 100%;
    background: #4caf50;
    width: 0%;
    border-radius: 5px;
    transition: width 0.2s;
}
.text-small {
    font-size: 0.8em;
    color: #666;
}