body {
	max-width: 700px;
	margin: auto;
	padding: 0 10px;
	font-family: sans-serif;
}

nav {
	text-align: center;
	margin-bottom: 30px;
}
nav a {
	padding: 10px;
}

a {
	color: #007bff;
}
a:visited {
	color: #003e80;
}

@media (prefers-color-scheme: dark) {
	body {
		background-color: #111;
		color: #eee;
	}

	a {
		color: #70b5ff;
	}

	a:visited {
		color: #1988ff;
	}
}