:root {
	--bg-main: #f3f3f3;
	--bg-bright: white;

	--text-main: #232323;
	--accent: #351e75;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg-main: #232323;
		--bg-bright: black;

		--text-main: #f3f3f3;
	}
	
	#output-graph > div {
		filter: invert(100%);
	}
}

html, body {
	margin: 0; padding: 0;
	font-size: 100%;
}
body {
	min-height: 100vh;
	font-family: Ubuntu, sans-serif;
	background: var(--bg-main);
	color: var(--text-main);
	
	display: grid;
	grid-template-columns: 1fr;
	grid-template-rows: auto 75vh 1fr auto;
	grid-template-areas: "header"
		"summary"
		"graph"
		"footer";
}

h1 {
	grid-area: header;
	margin: 0.5em;
	text-align: center;
}

textarea, input, #output-graph {
	background: var(--bg-bright);
	color: var(--text-main);
	border: 0.2em dashed var(--accent);
}

#input-summary {
	grid-area: summary;
}

#output-graph {
	grid-area: graph;
	overflow-x: scroll;
	
	margin: 1em 0;
	border-left-width: 0;
	border-right-width: 0;
}

footer {
	grid-area: footer;
	margin: 1em 1em 0.5em 1em;
}


.icon {
	max-width: 1.25em;
	vertical-align: middle;
}