.elysian-reader-progress {
    --er-primary: #6366f1;
    --er-secondary: #a855f7;
    --er-height: 8px;
    position: fixed;
    z-index: 999999;
    height: var(--er-height);
    background: rgba(0, 0, 0, 0.08);
    pointer-events: none;
    will-change: transform;
    transform: translate3d(0, 0, 0);
}

.elysian-reader-progress--top {
    top: 0;
    left: 0;
    right: 0;
}

.elysian-reader-progress--bottom {
    bottom: 0;
    left: 0;
    right: 0;
}

.elysian-reader-progress--left {
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--er-height);
    height: auto;
}

.elysian-reader-progress--left .elysian-reader-progress__bar {
    width: 100%;
    height: 0%;
    transition: height 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.elysian-reader-progress--right .elysian-reader-progress__bar {
    width: 100%;
    height: 0%;
    transition: height 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.elysian-reader-progress--right {
    top: 0;
    right: 0;
    bottom: 0;
    width: var(--er-height);
    height: auto;
}

.elysian-reader-progress__bar {
    height: 100%;
    width: 0%;
    background: var(--er-primary);
    transition: width 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.elysian-reader-progress--rounded .elysian-reader-progress__bar {
    border-radius: 4px;
}

.elysian-reader-progress--glow .elysian-reader-progress__bar {
    box-shadow: 0 0 8px var(--er-primary);
}

.elysian-reader-progress--gradient .elysian-reader-progress__bar {
    background: linear-gradient(90deg, var(--er-primary), var(--er-secondary));
}

.elysian-reader-progress--neon .elysian-reader-progress__bar {
    box-shadow: 0 0 10px var(--er-primary), 0 0 30px var(--er-primary), 0 0 60px var(--er-primary);
}

.elysian-reader-progress--glass .elysian-reader-progress__bar {
    background: rgba(255, 255, 255, 0.20);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 2px;
}

.elysian-reader-progress--segmented .elysian-reader-progress__bar {
    background: repeating-linear-gradient(
        90deg,
        var(--er-primary),
        var(--er-primary) 4px,
        transparent 4px,
        transparent 8px
    );
}

.elysian-reader-progress--stripe .elysian-reader-progress__bar {
	background: repeating-linear-gradient(
		45deg,
		var(--er-primary),
		var(--er-primary) 4px,
		var(--er-secondary) 4px,
		var(--er-secondary) 8px
	);
}

/* Vertical (Left/Right) Fill Direction —
   Left/right bars run top-to-bottom, so gradient and segmented patterns
   need to flow along that same axis. Left as the default 90deg
   (left-to-right), a horizontal gradient squeezed into the bar's ~8px
   width happens entirely across those few pixels instead of along its
   length, so it reads as two solid color bands rather than a gradient. */
.elysian-reader-progress--left.elysian-reader-progress--gradient .elysian-reader-progress__bar,
.elysian-reader-progress--right.elysian-reader-progress--gradient .elysian-reader-progress__bar {
    background: linear-gradient(180deg, var(--er-primary), var(--er-secondary));
}

.elysian-reader-progress--left.elysian-reader-progress--segmented .elysian-reader-progress__bar,
.elysian-reader-progress--right.elysian-reader-progress--segmented .elysian-reader-progress__bar {
    background: repeating-linear-gradient(
        180deg,
        var(--er-primary),
        var(--er-primary) 4px,
        transparent 4px,
        transparent 8px
    );
}

.elysian-reader-progress--pulse .elysian-reader-progress__bar {
    animation: er-frontend-pulse 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes er-frontend-pulse {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.55; }
}

.elysian-reader-progress--left.elysian-reader-progress--rounded .elysian-reader-progress__bar {
    border-radius: 0 0 4px 4px;
}

.elysian-reader-progress--right.elysian-reader-progress--rounded .elysian-reader-progress__bar {
    border-radius: 4px 4px 0 0;
}

.admin-bar .elysian-reader-progress--top {
    top: 32px;
}

@media screen and (max-width: 782px) {
    .admin-bar .elysian-reader-progress--top {
        top: 46px;
    }
}

@media screen and (max-width: 600px) {
    .admin-bar .elysian-reader-progress--top {
        top: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .elysian-reader-progress--pulse .elysian-reader-progress__bar {
        animation: none;
    }
}