.rtpb-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: #ddd;
    z-index: 9999;
}
.rtpb-bar-fill {
    height: 100%;
    width: 0%;
    background: #0073aa;
    transition: width 0.2s;
}
.rtpb-reading-time {
    font-size: 14px;
    margin-bottom: 10px;
    color: #444;
    background: #f9f9f9;
    padding: 8px;
    border-left: 4px solid #0073aa;
}