x-range {
	--thumb-size: 8px;
	--thumb-color: #fff;
	--thumb-shadow: #000;
	--track-size: 4px;
	--track-color: gray;
	--elapsed-color: lightgray;
	--remaining-color: transparent;

	--radius: calc(var(--track-size)/2);

	width: 144px;
	height: 16px;
	position: relative;

	.-track, .-elapsed, .-remaining {
		position: absolute;
		top: calc(50% - var(--track-size)/2);
		height: var(--track-size);
		border-radius: var(--radius);
	}

	.-track {
		width: 100%;
		left: 0;
		background-color: gray;
	}

	.-elapsed {
		left: 0;
		background-color: var(--elapsed-color);
	}
	
	.-remaining {
		right: 0;
		background-color: var(--remaining-color);
	}

	.-inner {
		position: absolute;
		left: var(--thumb-size);
		right: var(--thumb-size);
		top: 0;
		bottom: 0;
	}

	.-thumb {
		all: unset;
		position: absolute;
		top: 50%;
		transform: translate(-50%, -50%);

		border-radius: 50%;
		width: calc(2*var(--thumb-size));
		height: calc(2*var(--thumb-size));
		background-color: var(--thumb-color);
		box-shadow: 0 0 2px var(--thumb-shadow);
	}

	&[disabled] {
		opacity: 0.5;
	}
}