header, footer {
	background: #006400;
	color: white;
	padding: 10px 20px;
	text-align: center;
	border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}
footer {
	text-align: center;
	margin-top: 40px;
	color: white;
}
h2 {
	border-bottom: 2px solid #ddd;
	padding-bottom: 5px;
	text-align: center;
}
.alert {
	text-align: center;
}