:root {
	--header-height: 60px;
}

html[dark_mode='false'], html:not([dark_mode]) {
	--body-color: #161616;
	--body-background-color: #FAFAFA;
	--label-color: #101010;
	--box-shadow-color: rgba(0, 0, 0, 0.30);
}

html[dark_mode='true'] {
  --body-color: #DDDDDD;
  --body-background-color: #393939;
  --label-color: #E9E9E9;
  --box-shadow-color: rgba(127, 127, 127, 0.90);
}

body {
	padding: var(--header-height) 10px 0;

	display: flex;
	justify-content: center;
	align-items: center;
}

html, html * {
	font-family: serif;
}

#back-button {
	position: absolute;
	top: 5px;
	left: 5px;

	text-decoration: none;
}
header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: var(--header-height);

	background-color: var(--body-background-color);
	border-bottom: 1px solid var(--label-color);
	box-sizing: border-box;

	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items: center;
	gap: 15px;
}

header h1 {
	font-size: 26px;
}

main {
	width: 500px;

	display: flex;
	flex-direction: column;
}
