:root {
	--background: #e2f4f9;
	--color: #000;
	--link: #006a85;
	--link-hover: #fff;
}

.lime {
	--background: #e8f9e2;
	--color: #000;
	--link: #288600;
	--link-hover: #fff;
}

* {
	box-sizing: border-box;
}

body {
	color: var(--color);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
	font-size: 1.1em;
	width: 100vw;
	min-height: 100vh;
	margin: 0;
	padding: 10vmin 15vmin;
	background-color: var(--background);
}

.centered {
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: center;
}

.poem {
	margin-bottom: 2em;
	line-height: 1.4;
}

a {
	text-decoration: none;
	color: var(--link);
	border-radius: 2px;
}

a:hover {
	color: var(--link-hover);
	background-color: var(--link);
}