.reading-progress-bar{position:fixed;top:0;left:0;width:0%;height:3px;background:linear-gradient(90deg,#00d4ff,#00b8d4);z-index:9999;transition:width .1s ease-out;box-shadow:0 0 10px rgba(0,212,255,.5)}.appearance-dark .reading-progress-bar{background:linear-gradient(90deg,#00d4ff,#00f0ff);box-shadow:0 0 10px rgba(0,212,255,.8)}.appearance-light .reading-progress-bar{background:linear-gradient(90deg,#09c,#00b8d4);box-shadow:0 0 8px rgba(0,153,204,.4)}.reading-progress-bar.animating{transition:width .2s cubic-bezier(.4, 0, .2, 1)}@media print{.reading-progress-bar{display:none!important}}