:root {
	--foreground: #586e75;
	--background: #fdf6e3;
	--html-border: #eee8d5;
	--html-background: #268bd2;
	--body-background: linear-gradient(to bottom, #2aa198, #268bd2);
	--blockquote-text: #657b83;
	--blockquote-border: #eee8d5;
	--button-primary: #fdf6e3;
	--button-secondary: #eee8d5;
	--code-color: #657b83;
	--code-background: #fdf6e3;
	--code-line-number-color: #93a1a1;
	--code-line-number-background: #eee8d5;
	--code-comment-color: #93a1a1;
	--code-keyword-color: #586e75;
}

@media (prefers-color-scheme: dark) {
	:root {
		--foreground: #93a1a1;
		--background: #002b36;
		--html-border: #073642;
		--html-background: #6c71c4;
		--body-background: linear-gradient(to bottom, #268bd2, #6c71c4);
		--blockquote-text: #839496;
		--blockquote-border: #073642;
		--button-primary: #073642;
		--button-secondary: #002b36;
		--code-color: #839496;
		--code-background: #002b36;
		--code-line-number-color: #586e75;
		--code-line-number-background: #073642;
		--code-comment-color: #586e75;
		--code-keyword-color: #93a1a1;
	}
}


pre.numberSource code > span > a:first-child::before {
    background-color: var(--code-line-number-background);
    color: var(--code-line-number-color);
}

pre.numberSource {
	margin-left: 3em;
	border-left: none;
	padding-left: 4px;
}

@media screen {
	pre > code.sourceCode > span > a:first-child::before { text-decoration: none; }
}

div.sourceCode { 
	color: var(--code-color);
	background-color: var(--code-background); 
	line-height: 80%;
}

code span.co { color: var(--code-comment-color); font-style: italic; } /* Comment */
code span.do { color: var(--code-comment-color); font-style: italic; } /* Documentation */
code span.kw { color: var(--code-keyword-color); font-weight: bold; } /* Keyword */

html {
	color: var(--foreground);
	background: var(--html-background);
	font-family: serif;
	font-size: 14pt;
}

body {
	margin: 0;
	background: var(--body-background);
}

main {
	max-width: 48em;
	
	margin: 0 auto;
	padding-left: 50pt;
	padding-right: 50pt;
	padding-top: 50pt;
	padding-bottom: 50pt;
	
	hyphens: auto;
	overflow-wrap: break-word;
	text-rendering: optimizeLegibility;
	font-kerning: normal;
	
	background-color: var(--background);
	border-left: solid 3pt var(--html-border);
	border-right: solid 3pt var(--html-border);
}

#shork {
	position: absolute;
	z-index: 1;
	left: -36px;
	top: -32px;
	width: 64px;
	transform-origin: 50% 50%;
}

#page-header {
	display: flex;
	flex-direction: row;
	gap: 2pt;
	justify-content: space-between;
	max-width: 60em;

	margin: 0 auto;
	padding: 4pt;

	background: url("images/shark-top-small.png");
	background-size: contain;
	border: solid 3pt var(--html-border);
}

#page-header div {
	display: flex;
	justify-content: center;
	gap: 2pt;
}

#page-header a {
	display: block;
	color: var(--foreground);
	text-decoration: none;
	padding: 2pt;
	border-radius: 3pt;
}

.page-header-button {
	background: linear-gradient(to bottom, var(--button-primary) 0%, var(--button-secondary) 100%);
	border: 1pt solid var(--blockquote-border);
}

.page-header-button:active {
	background: linear-gradient(to bottom, var(--button-secondary) 0%, var(--button-primary) 100%);
}

.rss-button {
	color: #fdf6e3 !important;
	background: linear-gradient(to bottom, #ff925a 0%, #d95c29 100%);
	border: 1pt solid #f87741;
}

.rss-button:active {
	background: linear-gradient(to bottom, #d95c29 0%, #fb9d3a 100%);
}

.hedgedoc-button {
	color: #fdf6e3 !important;
	background: linear-gradient(to bottom, #f45c39 0%, #b51f08 100%);
	border: 1pt solid #d44021;
}

.hedgedoc-button:active {
	background: linear-gradient(to bottom, #b51f08 0%, #f45c39 100%);
}

.nextcloud-button {
	color: #fdf6e3 !important;
	background: linear-gradient(to bottom, #539ad5 0%, #00679e 100%);
	border: 1pt solid #3480b9;
}

.nextcloud-button:active {
	background: linear-gradient(to bottom, #00679e 0%, #539ad5 100%);
}

.forgejo-button {
	color: #fdf6e3 !important;
	background: linear-gradient(to bottom, #ff7740 0%, #c2410c 100%);
	border: 1pt solid #e15c27;
}

.forgejo-button:active {
	background: linear-gradient(to bottom, #c2410c 0%, #ff7740 100%);
}

.jupyter-button {
	color: #fdf6e3 !important;
	background: linear-gradient(to bottom, #ffae5c 0%, #f37524 100%);
	border: 1pt solid #ff903f;
}

.jupyter-button:active {
	background: linear-gradient(to bottom, #f37524 0%, #ffae5c 100%);
}

#articles ul {
	padding-left: 0;
}

#articles li {
	list-style: none;
}

.articles-header {
	margin: 8pt 0 4pt 0;
	text-align: left;
}

.articles-footer {
	display: flex;
	justify-content: space-between;
	margin-top: 4pt;
}

.articles-title {
	font-size: 14pt;
	font-weight: bold;
}

.articles-author {
	font-style: italic;
}

.articles-summary {
	margin: 0;
}

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

#page-footer {
	display: flex;
	justify-content: center;
	max-width: 60em;

	margin: 0 auto;
	padding: 4pt;
	
	background: url("images/shark-top-small.png");
	background-size: contain;
	border: solid 3pt var(--html-border);
}

#page-footer nav {
	display: flex;
	align-items: center;
}

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

	h1 {
		font-size: 1.8em;
	}

	#page-header {
		flex-direction: column;
	}
}

@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;
	}

	a {
		color: black;
	}

	#page {
		border: none;
	}

	#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: 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;
}

figure {
	margin: 1em 0;
	width: 100%;
	overflow-x: auto;
	display: block;
	text-align: center;
}

figcaption {
	margin-top: 0.75em;
}

table {
	margin: 1em auto;
	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;
}
