body {
	display: grid;
	gap: 0;
	background: #2311D0;
}

/* 1-spaltiges Layout */
@media (min-width: 30em) {
	body {
		grid-template-columns: 1fr;
		grid-template-rows: auto 1fr min-content;
	}
}

header,
nav,
main,
article,
section,
footer {
	border-radius: 0;
	border: none;
	padding: 0;
	color: #000000;
	font-family: Arial, sans-serif;
	grid-column: 1 / -1;
}

header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: #2311D0;
	grid-column: 1 / -1;
	grid-row: 1;
	display: grid;
	grid-template-columns: 4em 1fr;
	gap: 0;
}

nav {
	position: sticky;
	top: 4em;
	z-index: 100;
	background: #2311D0;
	grid-column: 1 / -1;
	grid-row: 2;
	grid-template-columns: 4em;
	gap: 0;
}

main {
	background: #FFFFFF;
}

footer {
	background: #2311D0;
}

body {
	margin: 0 auto;
	max-width: 60em;
	font-family: sans-serif;
}