.bc-reading-progress{position:relative;height:3px;background:var(--border-subtle);border-radius:var(--radius-pill);overflow:hidden;width:100%;max-width:400px}.bc-reading-progress__fill{position:absolute;top:0;left:0;bottom:0;background:var(--gradient-gold);transition:width 0.1s linear;border-radius:var(--radius-pill)}