@namespace epub "http://www.idpf.org/2007/ops";

body{
	font-family: Georgia, serif;
	font-size: 18px;
	padding: 0 3em;
	margin: 3em auto;
	max-width: 55ch;
}

body > nav,
body > section,
body > article{
	min-height: 100vh;
}

body > section[epub|type~="titlepage"],
body > section[epub|type~="halftitlepage"]{
	min-height: auto;
}

section + section,
section + article,
article + section,
article + article{
	box-sizing: border-box;
	margin-top: 12em !important;
	padding: 0;
}

nav[epub|type~="toc"] ol{
	list-style: none;
}

@media(max-width: 65ch){
	body{
		padding: 0 1em;
	}

	section[epub|type~="imprint"] p{
		width: 100%;
	}
}

@media(prefers-color-scheme: dark){
	body{
		background: #222222;
		color: #ffffff;
	}

	/* These three link colors provide WCAG AAA compliance at 16px */
	a:link{
		color: #6bb9f0;
	}

	a:active{
		color: #e6cc22;
	}

	a:visited{
		color: #dda0dd;
	}

	img[epub|type~="se:color-depth.black-on-transparent"]{
		filter: invert(1);
	}
}

@media(pointer: coarse) or (pointer: none){
	nav[epub|type~="toc"] ol li{
		margin-top: 2em;
		margin-bottom: 2em;
	}
}