nav-panel {
	display: block;
	position: relative;
}

nav-panel > * {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 1;
	pointer-events: none;
	opacity: 0;
	transform: translateX(-4rem);
	transition-property: transform, opacity;
	transition-duration: var(--transition-time-half);
	overflow-y: scroll;
}

nav-panel > *.on {
	z-index: 2;
	pointer-events: initial;
	opacity: 1;
	transform: none;
}

nav-panel > *.on ~ * {
	transform: translateX(4rem);
}