html * {box-sizing: border-box;}

body {
	font-family: system-ui, sand-serif;
	font-size: 100%;
	line-height: 1.35em;
	margin: 0;
}

header {
	min-height: 50vh;
	background-color: #aaa;
	background-image: linear-gradient(#0008,#0008),url("images/B-building.jpg");
	background-size: cover;
	background-position: center bottom;
}

h1 {
	margin:0;
	padding-top: 8rem;
	text-align: center;
	font-size: 8vw;
	line-height: 1em;
	color: #fff;
}

section {
	padding: 1em;
	margin: 0;
	width: 100%;
	height: 33em;
	background-color: #bba;
}
section:first-child {
	background-color: #666967;
}
section:last-child {
	background-color: #706866;
}
section:nth-child(2) {
	background-image: linear-gradient(#fff9,#fff9),url("images/A-building.jpg");
	background-size: cover;
	background-position: center center;
}

section p {
	margin: 18vw;
	margin-top: 10em;
	color: #ddd;
	background-color: #0008;
	padding: 1em .8em;
}

footer {
	background-color: #333;
	color: #aaa;
	padding: 2em;
}