/* stylesheet for inf.zeniko.ch */

body {
	margin: 0px;
	background: #FFF;
	color: #444;
	font: 13pt/1.6 "Helvetica Neue", Helvetica, Arial, sans-serif;
}

h1, h2, h3 {
	line-height: 1.2;
}
h2 {
	border-bottom: 1px solid #df3c45;
}

a {
	color: #df3c45;
	text-decoration: none;
}
header, footer {
	clear: both;
	color: #FFF;
	background: #df3c45;
	background: linear-gradient(to right, #bf1c25, #df3c45);
	padding: 3px 10px;
}
header a, footer a {
	color: #FFF;
}
header a {
	font-size: 16pt;
}
header > a + a {
	float: right;
}
header > a > img {
	height: 30px;
	filter: invert(1);
}
nav {
	float: left;
	width: 290px;
	background: #FDD;
	padding: 5px;
}
nav > :not(ul) {
	padding: 10px;
}

nav a.active {
	font-weight: bold;
}
footer {
	font-size: 90%;
	padding-left: 310px;
}

hr {
	border: 1px solid #df3c45;
}
img {
	max-width: 100%;
	height: auto;
}

article {
	max-width: 80ch;
	padding: 10px;
	margin-left: 300px;
}

article > .centered {
	text-align: center;
}
article > table {
	margin-left: auto;
	margin-right: auto;
}
article > table + table {
	margin-top: 20px;
}

p.hauptquelle {
	color: #888888;
	text-align: right;
	margin-top: -20pt;
}

/* all custom x-elements https://news.ycombinator.com/item?id=46416945 */
:where(:not(:defined)) {
	display: block;
}

/* colors from https://isabelcastillo.com/error-info-messages-css */
x-Info, x-info {
	color: #00529B;
	background-color: #BDE5F8;
}
x-Info:before, x-info:before { content: "\1f4a1  Hinweis"; }
x-Warn {
	color: #9F6000;
	background-color: #FEEFB3;
}
x-Warn:before { content: "\26a0\fe0f  Vorsicht"; }
x-Aufgabe, x-exercise {
	color: #4F8A10;
	background-color: #DFF2BF;
}
x-Aufgabe:before, x-exercise:before { content: "\1f4ac  Aufgabe"; }
x-Lehrplan {
	color: #00529B;
	background-color: #BDE5F8;
}
x-Lehrplan:before { content: "\1f4c4  Lehrplan"; }
x-Info, x-info, x-Warn, x-Aufgabe, x-exercise, x-Lehrplan {
	margin: 10px 22px;
	padding: 10px;
	border-radius: .5em;
}
x-Info:before, x-info:before, x-Warn:before, x-Aufgabe:before, x-exercise:before, x-Lehrplan:before {
	width: 1em;
	line-height: 1em;
	margin-right: .2em;
	margin-left: .2em;
}

tbody tr:nth-child(odd):not(:only-child) {
	background: #EEF;
}
th, td {
	padding: 2px 5px;
}

pre {
	background: #EEF;
	overflow: auto;
}
blockquote {
	margin-left: 0px;
	border-left: 3px solid #df3c45;
	padding-left: 20px;
}

ul {
	list-style: square;
}
ul > li > ul {
	list-style: disc;
}

a[href^="tag-"] { background: #EEF; padding: 3px; border-radius: 5px; }

x-columns, x-columns3, x-cards3 {
	columns: 3 auto;
}
x-columns2 {
	columns: 2 auto;
}

/* mininmal dark mode */
@media (prefers-color-scheme: dark) {
	body { background: #000; }
	body, img, video, iframe { filter: invert(1) hue-rotate(180deg); }
	img[src$=".svg"] { background: #FFF; }
}

/* mobile hamburger menu (source: https://www.mediaevent.de/tutorial/css-responsive-menu.html) */
#navmenu, #navmenu + label {
	display: none;
}

#navmenu + label {
	position: absolute;
	margin-top: 20px;
	width: 75px;
	height: 50px;
}

#navmenu + label > span {
	position: absolute;
	height: 4px;
	background: #df3c45;
	border-radius: 2px;
	width: 55px;
	display: block;
	left: 10px;
	transition: 0.5s;
	transform-origin: center;
}

#navmenu + label > span:nth-child(1) { top: 12px; }
#navmenu + label > span:nth-child(2) { top: 24px; }
#navmenu + label > span:nth-child(3) { top: 36px; }

#navmenu:checked + label > span:nth-child(1) { transform: translateY(12px) rotate(-225deg); }
#navmenu:checked + label > span:nth-child(2) { opacity: 0; }
#navmenu:checked + label > span:nth-child(3) { transform: translateY(-12px) rotate(225deg); }

@media (max-width: 767.98px) {
	#navmenu + label {
		display: block;
	}
	#navmenu + label + nav {
		position: absolute;
		top: 120px;
		width: calc(100% - 10px);
		transition: visibility 0.5s, opacity 0.5s linear;
	}
	#navmenu:not(:checked) + label + nav {
		visibility: hidden;
		opacity: 0;
	}
	article {
		margin-left: 0px;
	}
	article > h1 {
		padding-left: 80px;
	}
	footer {
		padding-left: 10px;
	}
}