:root {
	--foreground: #1a1a1a;
	--background: #fdfdfd;
	--border: #c9c9c9;
	--html-background: #e3e3e3;
	--blockquote-text: #606060;
	--blockquote-border: #e6e6e6;
	--button-border: #e3e3e3;
	--button-background: #d0d0d0;
}

@media (prefers-color-scheme: dark) {
	:root {
		--foreground: #fdfdfd;
		--background: #1a1a1a;
		--border: #4c4c4c;
		--html-background: #303030;
		--blockquote-text: #e6e6e6;
		--blockquote-border: #606060;
		--button-border: #4c4c4c;
		--button-background: #404040;
	}
}

html {
	color: var(--foreground);
	/*background: url("recursion.gif");*/
	background: var(--html-background);
	background-repeat: repeat-y;
	background-size: cover;
	font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

body {
	background-color: var(--background);
	border: solid 1px var(--border);
	margin: 0 auto;
	max-width: 48em;
	padding-left: 50pt;
	padding-right: 50pt;
	padding-top: 50pt;
	padding-bottom: 50pt;
	hyphens: auto;
	overflow-wrap: break-word;
	text-rendering: optimizeLegibility;
	font-kerning: normal;
}

#page-header {
	display: flex;
	flex-direction: row;
	flex-wrap: nowrap;
	justify-content: space-between;
	text-align: left;
	border: 4pt ridge var(--border);
	background: url("images/sand.png");
	background-size: 25%;
}

#page-header li {
	list-style: none;
	display: inline-block;
}

#page-header a:active {
	border: 2pt inset var(--button-border)
}

#page-header a {
	color: var(--foreground);
	text-decoration: none;
	margin: 4pt;
	padding: 4pt;
	border: 2pt outset var(--button-border);
	background-color: var(--button-background)
}

#page-header ul,
#articles ul {
	padding-left: 0;
}

#articles li {
	list-style: none;
	display: block;
}

.articles-header {
	display: flex;
	flex-direction: row;
	flex-wrap: nowrap;
	justify-content: space-between;
}

.articles-title {
	margin: 8pt 0 4pt 0;
	font-size: 14pt;
	font-weight: bold;
}

.articles-author {
	margin: 12pt 0 4pt 0;
}

.articles-summary {
	margin: 0;
}

.articles-date {
	margin: 0;
	text-align: right;
}

#page-footer {
	border: 4pt ridge var(--border);
	background: url("images/sand.png");
	background-size: 25%;
	display: flex;
	justify-content: center;
}

#page-footer p {
	display: flex;
	flex-direction: row;
	align-items: center;
}

/*
#TOC {
	padding: 24px;
}

section {
	display: flex;
	flex-direction: row;
}

article {
	padding: 12px;
	overflow: auto;
}
*/

@media (max-width: 600px) {
	body {
		font-size: 0.9em;
		padding: 12pt;
	}

	h1 {
		font-size: 1.8em;
	}
}

@media print {
	html {
		background-color: white;
	}

	body {
		background-color: transparent;
		color: black;
		border: none;
		font-size: 12pt;
	}

	p,
	h2,
	h3 {
		orphans: 3;
		widows: 3;
	}

	h2,
	h3,
	h4 {
		page-break-after: avoid;
	}

	#page-header,
	#page-footer {
		display: none;
	}
}

p {
	margin: 1em 0;
}

a {
	color: #268bd2;
}

a:not(:hover) {
	text-decoration: none;
}

a:visited {
	color: #6c71c4;
}

img {
	max-width: 100%;
}

svg {
	height: auto;
	max-width: 100%;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	margin-top: 1.4em;
}

h5,
h6 {
	font-size: 1em;
	font-style: italic;
}

h6 {
	font-weight: normal;
}

ol,
ul {
	padding-left: 1.7em;
	margin-top: 1em;
}

li>ol,
li>ul {
	margin-top: 0;
}

blockquote {
	margin: 1em 0 1em 1.7em;
	padding-left: 1em;
	border-left: 2pt solid var(--blockquote-border);
	color: var(--blockquote-text);
}

code {
	font-family: Menlo, Monaco, Consolas, 'Lucida Console', monospace;
	font-size: 85%;
	margin: 0;
	hyphens: manual;
}

pre {
	margin: 1em 0;
	overflow: auto;
}

pre code {
	padding: 0;
	overflow: visible;
	overflow-wrap: normal;
}

.sourceCode {
	background-color: transparent;
	overflow: visible;
}

hr {
	background-color: var(--foreground);
	border: none;
	height: 1pt;
	margin: 1em 0;
}

table {
	margin: 1em 0;
	border-collapse: collapse;
	width: 100%;
	overflow-x: auto;
	display: block;
	font-variant-numeric: lining-nums tabular-nums;
}

table caption {
	margin-bottom: 0.75em;
}

tbody {
	margin-top: 0.5em;
	border-top: 1pt solid var(--foreground);
	border-bottom: 1pt solid var(--foreground);
}

th {
	border-top: 1pt solid var(--foreground);
	padding: 0.25em 0.5em 0.25em 0.5em;
}

td {
	padding: 0.125em 0.5em 0.25em 0.5em;
}

header {
	margin-bottom: 4em;
	text-align: center;
}

#TOC li {
	list-style: none;
}

#TOC ul {
	padding-left: 1.3em;
}

#TOC>ul {
	padding-left: 0;
}

#TOC a:not(:hover) {
	text-decoration: none;
}