* {
	box-sizing: border-box;
}

body {
	max-inline-size: 50em;
	padding-inline: 1em;
	margin-block: 0;
	margin-inline: auto;
	background-color: #000e29;
	color: #fff;
	font-family: sans-serif;
	line-height: 1.4;
}

a {
	color: #007aff;
}

h2, h3 {
	line-height: 1.2;
	margin-block: 2em 0.5rem;
}

img {
	max-inline-size: 100%;
	block-size: auto;
}

blockquote {
	margin-inline: 0;
	padding-inline-start: 1em;
	border-inline-start: 0.5em solid #243350;
}

pre,
input,
.btn {
	font-family: inherit;
	font-size: inherit;
	color: inherit;
	border: 2px solid #243350;
	border-radius: 0.2em;
	padding-inline: 1em;
	padding-block: 0.5em;
}

pre,
input,
.btn:hover {
	background-color: #243350;
}
.btn {
	background: transparent;
	text-decoration: none;
}
pre {
	font-size: 125%;
	overflow: auto;
}

header {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-items: center;
	padding-block: 1em;
	margin-block-end: 3em;
	gap: 1em;
}

h1 {
	margin: 0;
}
h1 a {
	color: inherit;
	text-decoration: none;
}

[role="search"] {
	display: flex;
	inline-size: 100%;
	max-inline-size: 20em;
	gap: 0.5em;
}
[role="search"] input {
	inline-size: 0;
	flex: 1;
}

.center {
	margin-block: 0 4em;
	text-align: center;
}

.items {
	padding: 0;
}
.items li {
	display: flow-root;
	margin-block: 0 2em;
}
.items li > a {
	max-inline-size: 25vi;
	float: inline-start;
	margin-inline-end: 1em;
	margin-block-end: 0.4em;
}
.items h3,
.items p {
	margin-block: 0 0.2em;
}

@media (min-width: 30em) {
	header {
		flex-direction: row;
	}
}