/* Article reading progress: fixed, unobtrusive and isolated from theme layout. */
.reading-progress {
	--reading-progress-color: hsl(195 84% 49%);
	--reading-progress-shadow: hsl(195 84% 49% / 0.38);
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	height: 4px;
	z-index: 9999;
	pointer-events: none;
	color: var(--reading-progress-color);
}

.reading-progress[hidden] {
	display: none !important;
}

.reading-progress-track {
	position: absolute;
	inset: 0;
	overflow: hidden;
	background: rgba(15, 23, 42, 0.16);
	box-shadow: 0 1px 0 rgba(255, 255, 255, 0.18);
}

.reading-progress-fill {
	width: 100%;
	height: 100%;
	transform: scaleX(0);
	transform-origin: left center;
	background: linear-gradient(90deg, #18bfef 0%, var(--reading-progress-color) 100%);
	box-shadow: 0 0 12px 1px var(--reading-progress-shadow);
	will-change: transform, background-color;
	transition: transform 90ms linear, background-color 180ms linear, box-shadow 180ms linear;
}

.reading-progress-label {
	position: absolute;
	top: calc(env(safe-area-inset-top, 0px) + 0.58rem);
	right: max(0.58rem, env(safe-area-inset-right, 0px));
	min-width: 3.15rem;
	padding: 0.26rem 0.54rem;
	border: 1px solid color-mix(in srgb, var(--reading-progress-color) 36%, transparent);
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.9);
	box-shadow: 0 6px 18px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.48) inset;
	backdrop-filter: blur(9px);
	-webkit-backdrop-filter: blur(9px);
	color: #172033;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.34rem;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	font-size: 0.72rem;
	font-weight: 750;
	font-variant-numeric: tabular-nums;
	line-height: 1;
	letter-spacing: 0.02em;
	text-align: center;
	text-shadow: none;
	transition: color 180ms linear, border-color 180ms linear, background-color 180ms ease, box-shadow 180ms ease;
}

.reading-progress-label::before {
	content: "";
	width: 0.43rem;
	height: 0.43rem;
	flex: 0 0 auto;
	border-radius: 50%;
	background: var(--reading-progress-color);
	box-shadow: 0 0 0 3px var(--reading-progress-shadow);
	transition: background-color 180ms linear, box-shadow 180ms linear, transform 180ms ease;
}

.reading-progress.is-complete .reading-progress-label {
	border-color: var(--reading-progress-color);
	background: rgba(255, 255, 255, 0.94);
	box-shadow: 0 7px 20px var(--reading-progress-shadow);
	color: #172033;
	font-weight: 800;
}

.reading-progress.is-complete .reading-progress-label::before {
	transform: scale(1.14);
}

@media screen and (max-width: 980px) {
	.reading-progress-label {
		top: calc(env(safe-area-inset-top, 0px) + 0.46rem);
		left: max(0.42rem, env(safe-area-inset-left, 0px));
		right: auto;
	}
}

@media screen and (max-width: 600px) {
	.reading-progress-label {
		min-width: 2.75rem;
		padding: 0.23rem 0.42rem;
		font-size: 0.66rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.reading-progress-fill,
	.reading-progress-label {
		transition: none;
	}
}

@media (forced-colors: active) {
	.reading-progress-track {
		background: Canvas;
	}

	.reading-progress-fill {
		background: Highlight;
		box-shadow: none;
	}

	.reading-progress-label {
		border: 1px solid CanvasText;
		background: Canvas;
		color: CanvasText;
		box-shadow: none;
	}
}

@media print {
	.reading-progress {
		display: none !important;
	}
}