@font-face {
	font-family: 'Open Sans';
	font-style: normal;
	font-weight: 400;
	src: url(/fonts/opensans/OpenSans-Regular.ttf);
	font-display: swap;
}

@font-face {
	font-family: 'Montserrat';
	font-style: normal;
	font-weight: 400;
	src: url(/fonts/montserrat/Montserrat-Regular.ttf);
	font-display: swap;
}

:root {
	--total-width: 1024px;
	--hl-color: royalblue;
	--hl1-color: blueviolet;
	--ter-color: dimgray;
	--bg-color: white;
	--snd-bg-color: aliceblue;
}

html {
	background: var(--bg-color);
	font-family: "Open Sans", sans-serif;
	box-sizing: border-box;
	text-rendering: geometricPrecision;
	font-kerning: auto;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body {
	background: var(--bg-color);
	padding-top: 1em;
}

p, li, dl {
	hyphens: auto;
	overflow-wrap: break-word;
}

hr {
	border: 0 solid var(--ter-color);
	border-bottom-width: 1px;
	clear: both;
	margin: 32px 0;
}

a {
	text-decoration: none;
	color: var(--hl-color);
}

a:hover {
	text-decoration: underline;
}

nav a:hover {
	text-decoration: none;
}

h1.title {
	letter-spacing: 4px;
	margin: 0;
	padding-bottom: 1em;
	text-align: center;
}

aside#head > nav > a > img {
	width: 24px;
	border-width: 0;
	padding: 3px 12px 0 12px;
	filter: saturate(0) invert(0.2);
}

aside#head > nav > a > img:hover {
	filter: unset;
}

header div.highlight {
	padding: 0.75em;
	border-radius: 0.5em;
	border: 1px solid var(--hl-color);
	background: var(--snd-bg-color);
	min-width: 80%;
	display: table;
	margin: 0em auto 0.5em auto;
}

h1, h2, h3, h4 {
	font-family: 'Montserrat', sans-serif;
	margin: 1em 0;
	color: var(--hl-color);
}

main > h2 {
	border-bottom: 1px solid var(--hl-color);
}

main > p:first-of-type {
	margin-top: 0;
}

main > p {
	text-align: justify;
}

section > article > ol {
	display: flex;
	flex-wrap: wrap;
	flex-basis: content;
	margin: 0;
	padding: 0 0 1em 0;
}

section > article > ol > li > figure {
	width: 100%;
	margin: 0;
}

section figure > figcaption {
	text-align: center;
	font-weight: bold;
	padding-top: 16px;
}

section > article > ol > li {
	list-style: none;
}

dl {
	column-count: 2;
}

dt {
	padding-top: 12px;
	font-weight: bold;
}

th {
	text-align: right;
	padding-right: 1em;
	vertical-align:top;
}

/* lightbox (https://github.com/cadars/john-doe/blob/main/style.css) */

.lightbox {
	display: none;
	color: var(--textcolor);
}

.lightbox:target {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	display: grid;
	place-items: center;
	align-content: center;
	background: var(--bgcolor);
	border: 0;
	z-index: 3;
}

.lightbox img {
	max-height: 100vh;
	z-index: 4;
}

.lightbox:target:before { /* Loading spinner */
	content:"";
	height: 2em;
	width: 2em;
	animation: spin .8s infinite linear;
	border: 1px solid;
	border-right-color: transparent;
	border-radius: 50%;
	display: block;
	position: absolute;
	transform: translateX(-50%);
	opacity: .25;
}

@keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
}

.lightbox:target:after { /* × to close */
	content: "\00D7";
	position: fixed;
	font-size: 2em;
	font-weight: 200;
	line-height: 0;
	top: .75em;
	right: .5em;
	z-index: 4;
}

picture, picture > img {
	display: block;
}

picture {
	border: 1px solid var(--ter-color);
	margin: auto;
}

picture > img {
	max-width: 100%;
}

/* desktop/regular */
@media (min-width: 1024px) {
	body {
		width: var(--total-width);
		line-height: 1.33;
		font-size: 1.20em;
		margin: 0 auto 1.5em auto;
		max-width: 56em;
	}

	picture {
		max-width: 100%;
		box-sizing: border-box;
	}

	aside.right {
		float: right;
		margin-left: 32px;
	}

	/* about and links */

	aside#head {
		float: left;
		width: calc(var(--total-width) / 3);
	}

	aside#head > nav {
		margin: 0.5em 0;
		text-align: center;
	}

	aside#head > nav > a {
		text-decoration: none;
	}

	main {
		float: left;
		margin-left: 1em;
		width: calc((var(--total-width) / 3 * 2) - 1.5em);
	}

	main > * {
		max-width: 100%;
	}

	/* portfolio & courses */

	#gallery {
		display: grid;
		grid-template-columns: repeat(2, 1fr);
	}

	section > article > ol > li {
		width: 20%;
		margin: 2.5%;
	}

	section > picture#courses {
		float: right;
		margin: 0 0 1em 1em;
		width: 360px;
	}

	section > figure {
		width: 50%;
		margin: 32px auto 32px auto;
	}

	#portrait {
		max-width: 20%;
	}

	/* footer */

	footer > blockquote {
		font-size: 80%;
		opacity: 0.9;
		font-style: italic;
		margin: 1em 10%;
	}

	footer > blockquote > span:last-child {
		float: right;
		font-style: normal;
	}

	footer > aside#portrait > * {
		display: inline-block;
	}

	footer > aside#portrait > p {
		text-align: bottom;
		padding: 0 0.5em;
		font-size: 80%;
	}

	footer > aside#portrait > picture {
		width: 200px;
	}
}

/* mobile */
@media (max-width: 1024px) {
	html, body {
		width: calc(100%-1em);
		margin: 0 0 1em 0;
		padding-left: 0.5em;
		padding-right: 0.5em;
	}

	picture img {
		width: 100%;
	}

	aside#head > nav {
		padding: 1em;
		text-align: center;
	}

	aside#head > nav > a > picture {
		width: 24px;
		border-width: 0;
	}

	footer > aside#portrait > p#portrait-note {
		display: none;
	}
	
	#gallery figure {
		margin: 0;
		margin-top: 1em;
	}

	section figure > picture > * {
		max-width: 100%;
	}

	section > picture,
	footer > aside > picture {
		max-width: 90%;
		margin: 0 auto;
		display: block;
	}

	dl { column-count: unset; }
}