body {
	background-color: #fff;
	background-attachment: fixed;
	min-height: 100vh;
	color: black;
	padding: 0;
	margin: 0;
	font-family: sans-serif;
	font-size: 12pt;
}
header {
	background-color: #fde;
	background: linear-gradient(#fac, #fde);
	box-shadow: 0 0 10px #fde;
	padding: 20px;
	padding-left: max(10px, calc(50% - 420px));
	padding-right: max(10px, calc(50% - 420px));
	margin: 0;
	font-size: 16pt;

	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: end;
}
header > div {
	padding: 0;
	margin: 0;
	max-width: 800px;

	display: flex;
	flex-direction: column;
	justify-content: start;
}
header > div > h1 {
	font-size: 20pt;
}
header > div > h1, header > div > p {
	padding: 0;
	margin: 20px;

	display: block;
}
header > * > ul {
	padding: 0;
	margin: 0;

	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
}
header > * > ul > li {
	padding: 0;
	margin: 20px;

	display: block;
}
main {
	background-color: transparent;
	min-height: 500px;

	padding: 20px;
	margin: 0;
	margin-bottom: 20px;

	max-width: 800px;
	margin-left: auto;
	margin-right: auto;
}
main table, main video, main img {
	display: block;
	max-width: 100%;
	overflow-x: auto;
}
@media (prefers-color-scheme: dark) {
	body {
		background-color: #181818; 
		background-attachment: fixed;
		color: white;
	}
	header {
		background-color: #222;
		background: linear-gradient(#222, #423);
		box-shadow: 0 0 10px #423;
	}
	a {
		color: #9ad;
	}
	a:visited {
		color: #a9d;
	}
	a:active {
		color: #d6a;
	}
}