body {
	font-family: Arial, sans-serif;
	margin: 0;
	padding: 0;
	background: #f5f5f5;
}
header {
	background-color: #333;
	color: #fff;
	padding: 1em;
}
header h1 {
	margin: 0;
}
nav ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	gap: 1em;
}
nav ul li {
	display: inline;
}
nav a {
	color: #fff;
	text-decoration: none;
}
main {
	padding: 1em;
}
section {
	background: #fff;
	margin: 1em 0;
	padding: 1em;
	border-radius: 4px;
	box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
footer {
	background-color: #333;
	color: #fff;
	text-align: center;
	padding: 1em;
	position: fixed;
	bottom: 0;
	width: 100%;
}