body {
	font-family: 'Segoe UI', Arial, sans-serif;
	background: linear-gradient(135deg, #e0e7ff 0%, #f5f5f5 100%);
	margin: 0;
	padding: 0;
}

header {
	background: #2d3e50;
	color: #fff;
	padding: 40px 0 30px 0;
	text-align: center;
	box-shadow: 0 4px 16px rgba(45, 62, 80, 0.15);
	border-bottom-left-radius: 40px;
	border-bottom-right-radius: 40px;
}

nav {
	margin: 30px 0 10px 0;
	text-align: center;
}

nav a {
	color: #2d3e50;
	text-decoration: none;
	margin: 0 18px;
	font-weight: bold;
	font-size: 1.1em;
	padding: 6px 14px;
	border-radius: 6px;
	transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

nav a:hover {
	color: #fff;
	background: #0078d7;
	box-shadow: 0 2px 8px rgba(0, 120, 215, 0.10);
}

h1 {
	margin-top: 0;
	font-size: 2.4em;
	letter-spacing: 1px;
}

h2 {
	margin-top: 0;
	color: #2d3e50;
	font-size: 1.5em;
	margin-bottom: 12px;
}

ul {
	padding-left: 22px;
}

ul li {
	margin-bottom: 8px;
	font-size: 1.08em;
	line-height: 1.5;
}