html {
	color: #ccc;
	background: #222;
	font-family: sans-serif;
}
* {
	line-height: 1.3em;
}
body {
	margin: 0;
}
nav.sidebar {
	position: fixed;
	top: 0;
	left: 0;
	height: 100vh;
	width: 20rem;
	overflow-y: auto;
	overflow-x: clip;
	display: flex;
	flex-direction: column;
	box-sizing: border-box;
	background: #2b2b2b;
}
div.toc {
	ul {
		list-style: none;
		ul a {
			font-weight: normal;
		}
	}
	li {
		margin: 0.5em 0;
	}
	a {
		white-space: normal;
		text-decoration: none;
	}
}
div.toc > ul {
	padding-bottom: 1rem;
	padding-top: 1rem;
	margin-top: 0;
}
div.toc-header {
	align-self: center;
	padding-top: 1rem;
	img {
		width: 10rem;
	}
}
footer {
	background: #2b2b2b;
	display: flex;
	justify-content: center;
}
nav.sitenav {
	display: flex;
	justify-content: space-between;
	padding: 1rem;
	span.next {
		text-align: end;
	}
}
main {
	display: flex;
	padding: 1rem;
	justify-content: center;
	img {
		/* Allow images to overflow past the sides of the text but center them */
		margin-left: 50%;
		transform: translateX(-50%);
		max-width: calc(100vw - 20rem - 1rem)
	}
}
article, nav.sitenav {
	max-width: 50rem;
	width: 100%;
}
.content {
	margin-left: 20rem;
}
h1 {
	font-size: 1.7em;
	line-height: 1em;
	padding: .6em 1em .15em 1em;
	margin: 1em -1em .4em -1em;
	color: #ddd;
	background: #2b2b2b;
	border: 1px solid #393939;
	box-shadow: 0 0 .3em #111;
	border-radius: .3em;
	font-variant: small-caps;
	font-weight: normal;
}
a {
	color: #fc5;
	font-weight: bold;
	text-decoration: underline;
	white-space: nowrap;
}
li {
	margin: 1em 0;
}
ul {
	padding: 0 0 0 1.3em;
}
a:hover,
a:active,
a:focus {
	color: #fea;
}
@media (prefers-color-scheme: light) {
	html {
		color: #333;
		background: #f7f7f7;
	}
	h1 {
		color: #444;
		background: #e4e4e4;
		border-color: #ccc;
		box-shadow: none;
	}
	nav.sidebar, footer {
		background: #e4e4e4
	}
	a {
		color: #079;
	}
	a:hover,
	a:active,
	a:focus {
		color: #00c;
	}
}