html {
	overflow-y: scroll;
}

body {
	background-color: #fff;
	color: #000;
	font-family: sans-serif;
	padding: 0;
	margin: 0;
}

pre, code {
	margin: 0;
}

a {
	color: #005386;
}

#header a, #nav a, #menu a {
	text-decoration: none;
}

#nav a:hover {
	background-color: #ddd;
}

#menu {
	clear: both;
	color: #069;
	overflow: hidden;
	background-color: #17a;
	padding: 0.7ex;
	border-top: 1px solid #ccc;
	border-bottom: 1px solid #069;
}

#menu a {
	padding: 0.5ex 1ex;
	color: #fff;
}

#menu span {
	color: #fff;
}

#menu a:hover {
	background-color: #069;
}

#header {
	background-color: #eee;
	clear: both;
	color: #555;
	font-size: 1.78em;
	padding: 0.7ex 0.7ex 0.7ex 0.7em;
}

#headerLink {
	color: #17a;
	margin-left: 5px;
}

h1 {
	margin: 1em 1ex 0.5ex 0;
	font-size: 1.4em;
}

h2 {
	margin: 1em 1ex 0.5ex 0;
	font-size: 1.3em;
}

h3 {
	margin: 1em 1ex 0.5ex 0;
	font-size: 1.0em;
}

h4 {
	margin: 1em 1ex 0.5ex 0;
	font-size: 0.9em;
}

#headerSubtitle {
	font-size: 0.75em;
	font-style: italic;
	margin-left: 1em;
}

#content {
	clear: both;
	margin: 0;
	padding: 0;
}

#nav {
	float: left;
	margin: 0 1px 0 0;
	padding: 1em 0;
	border-right: 1px dotted #ccc;
	width: 300px;
}

#nav ul {
	margin: 0;
	padding: 0;
}

#nav li {
	list-style: none;
	padding: 0;
	margin: 0;
}

#nav li ul {
	padding-left: 0.6em !important;
}

#nav li a {
	display: block;
	margin: 0;
	padding: 0.8ex 2em 0.8ex 1em;
}

#main {
	margin: 0 0 0 300px;
	max-width: 50em;
	padding: 1.5em;
}

.gallery {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	grid-gap: 20px;
}

.gallery a img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.left {
	float: left;
	margin: 0;
	padding: 0;
}

.right {
	float: right;
	margin: 0;
	padding: 0;
}

.hidden {
	display: none;
}

@media (prefers-color-scheme: dark) {
	body {
		background-color: #000;
		color: #bdbdbd;
	}
	#menu {
		border-top: 1px solid #222;
	}
	#header {
		background-color: #111;
	}
	#nav a:hover {
		background-color: #222;
	}
	blockquote, pre, code {
		background-color: #111;
		border-color: #222;
	}
	a {
		color: #56c8ff;
	}
	#main img[src$=svg] {
		filter: invert(1);
	}
}

@font-face {
  font-family: firacode;
  src: url(firacode.ttf);
}

code {
	font-family: firacode;
}
