/* Layout */
body {
	font-family: 'Fira Code', 'Nanum Gothic Coding', monospace;
	display: flex;
	flex-flow: row;
	margin: 0;
	padding: 0;
}

body>header {
	text-align: center;
}

body>header h1 {
	width: 1.5em;
	font-size: 10em;
	margin: 0 auto;
}

body>header p {
	color: gray;
}

#main {
	flex: auto;
	min-height: 100vh;
	max-width: 820px;
	overflow: hidden;

	display: flex;
	flex-flow: column;
}

#main>nav a {
	line-height: 2em;
}

#main>main,
#main>footer {
	padding: 15px;
}

#main>nav {
	text-align: center;
}

#main>main {
	flex: 1;
	margin-right: 25px;
}

#main>footer {
	padding-top: 50px;
}

@media (max-width: 640px) {
	body {
		flex-direction: column;
	}

	body>header h1 {
		width: auto;
		font-size: 7em;
	}

	#main {
		display: block;
		min-height: 0;
	}

	#main>main {
		margin-right: 0;
	}
}

hr {
	border: none;
	border-top: 1px solid gray;
	max-width: 25px;
	margin: 35px auto;
}

.muted {
	color: gray;
}

::selection {
	background-color: black;
	color: white;
}

@media (prefers-color-scheme: dark) {
	html {
		background-color: black;
		color: #dfdfdf;
	}

	article img:not([src$=".jpg"]):not([src$=".jpeg"]):not(.opaque) {
		/* prevent transparent images from showing the black background */
		background-color: white;
		border: 5px solid white;
		box-sizing: border-box;
	}

	::selection {
		background-color: #dfdfdf;
		color: black;
	}
}

/* Homepage */

#intro {
	width: 100%;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
}

#intro h1 {
	font-size: 10em;
	margin: 0;
	margin-bottom: 0.2em;
}

@media (max-width: 640px) {
	#intro h1 {
		font-size: 7em;
	}
}

/* Typography */

article>header {
	margin-bottom: 2em;
}

article>header time {
	color: gray;
	white-space: nowrap;
}

article img,
article video {
	max-width: 100%;
}

article .footnotes {
	font-size: 0.75em;
}

pre {
	font-family: 'Fira Code', 'Nanum Gothic Coding', monospace;
	background-color: #272822;
	color: #f8f8f2;
	padding: 15px;
	overflow: auto;

	tab-size: 2;
	-moz-tab-size: 2;
}

p code,
li code {
	color: #930d72;
}

a,
a:visited {
	color: inherit;
}

kbd {
	display: inline-block;
	padding: 3px 5px;
	font-size: 0.8em;
	line-height: normal;
	line-height: 10px;
	vertical-align: middle;
	border: 1px solid black;
	border-radius: 3px;
	box-shadow: inset 0 -1px 0 black;
	background-color: rgba(0, 0, 0, 0.15);
}

@media (prefers-color-scheme: dark) {
	kbd {
		border-color: white;
		background-color: rgba(255, 255, 255, 0.15);
		box-shadow: inset 0 -1px 0 white;
	}

	p code,
	li code {
		color: #f200b7;
	}
}

iframe[src*="youtube-nocookie.com"],
iframe.video {
	border: none;
	width: 100%;
	height: 460px;
}

@media (max-width: 640px) {

	iframe[src*="youtube-nocookie.com"],
	iframe.video {
		height: 260px;
	}
}

@media (max-width: 400px) {
	/* General spacing */
	#main > nav,
	#main > main,
	#main > footer {
		padding: 12px;
	}

	/* Sidebar logo */
	body > header h1 {
		width: auto;
		font-size: 6rem;
		line-height: 1;
	}

	article > header h1,
	main > h1 {
		font-size: 1.6rem;
	}

	body > header p {
		font-size: 0.9rem;
		margin-top: 0.5rem;
	}

	/* Homepage hero */
	#intro {
		min-height: 80vh;
		padding: 1rem;
	}

	#intro h1 {
		font-size: 4.5rem;
		line-height: 1;
		word-break: break-word;
	}

	/* Better reading width */
	article {
		font-size: 0.95rem;
		line-height: 1.7;
	}

	/* Prevent code blocks from feeling cramped */
	pre {
		padding: 10px;
		font-size: 0.85rem;
	}

	/* Smaller video embeds */
	iframe[src*="youtube-nocookie.com"],
	iframe.video {
		height: 210px;
	}

	/* Single-column cards */
	ul {
		grid-template-columns: 1fr;
	}

	/* Article list */
	.article-list article > header {
		flex-direction: column;
		align-items: flex-start;
		gap: 0.25rem;
	}

	.article-list article h3 {
		margin: 0;
	}

	/* Prevent long words from causing overflow */
	h1,
	h2,
	h3,
	p,
	li {
		overflow-wrap: break-word;
	}
}

/* Article list */

.article-list article>header {
	display: flex;
	flex-flow: row;
	align-items: center;
	margin-bottom: 0;
}

.article-list article h3 {
	display: inline-block;
	margin: 0.5em;
}

.article-list article small {
	font-weight: normal;
	color: gray;
}

.alt-links {
	float: right;
	color: gray;
	margin: 30px 0;
}

article > ul {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
	margin: -0.5em 0;

	p {
		margin: 0.5em 0;
	}
}