* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	line-height: 1.6;
	color: #333;
	background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
	min-height: 100vh;
	padding: 2rem 1rem;
}

.container {
	max-width: 900px;
	margin: 0 auto;
}

header {
	text-align: center;
	margin-bottom: 3rem;
	background: white;
	padding: 2.5rem 2rem;
	border-radius: 16px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

h1 {
	font-size: 2.5rem;
	margin-bottom: 0.5rem;
	color: #2d3748;
	font-weight: 700;
}

.subtitle {
	font-size: 1.25rem;
	color: #718096;
	margin-bottom: 1.5rem;
}

h2 {
	font-size: 1.8rem;
	margin-bottom: 1rem;
	color: #2d3748;
	font-weight: 600;
}

h3 {
	font-size: 1.3rem;
	margin-top: 1.5rem;
	margin-bottom: 0.75rem;
	color: #4a5568;
	font-weight: 600;
}

h4 {
	font-size: 1.1rem;
	margin-bottom: 0.5rem;
	color: #4a5568;
	font-weight: 600;
}

p {
	color: #4a5568;
	font-size: 1rem;
	margin-bottom: 1rem;
	line-height: 1.7;
}

.card {
	background: white;
	padding: 2rem;
	border-radius: 12px;
	box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
	margin-bottom: 2rem;
}

.card.highlight {
	background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
	border: 2px solid #667eea;
}

.stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 1.5rem;
	margin: 2rem 0;
}

.stat {
	text-align: center;
	padding: 1.5rem;
	background: white;
	border-radius: 8px;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.stat-number {
	font-size: 2.5rem;
	font-weight: 700;
	color: #667eea;
	margin-bottom: 0.5rem;
}

.stat-label {
	font-size: 0.9rem;
	color: #718096;
	line-height: 1.4;
}

.phase {
	background: #f7fafc;
	padding: 1.5rem;
	border-radius: 8px;
	margin-bottom: 1rem;
	border-left: 4px solid #667eea;
}

ul, ol {
	margin-left: 1.5rem;
	margin-bottom: 1rem;
}

li {
	margin-bottom: 0.5rem;
	color: #4a5568;
	line-height: 1.6;
}

.model-list {
	background: #f7fafc;
	padding: 1.5rem;
	border-radius: 8px;
	margin-bottom: 1rem;
}

.model-list li {
	margin-bottom: 0.75rem;
}

.chart-container {
	margin: 2rem 0;
	text-align: center;
}

.chart-image {
	max-width: 100%;
	height: auto;
	border-radius: 8px;
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
	margin-bottom: 0.75rem;
}

.chart-caption {
	font-size: 0.9rem;
	color: #718096;
	font-style: italic;
	margin-bottom: 0;
}

.links {
	display: flex;
	gap: 1rem;
	justify-content: center;
	flex-wrap: wrap;
	margin-top: 1.5rem;
}

.btn {
	display: inline-block;
	padding: 0.75rem 1.5rem;
	background: #667eea;
	color: white;
	text-decoration: none;
	border-radius: 8px;
	font-weight: 600;
	transition: all 0.3s ease;
	box-shadow: 0 4px 6px rgba(102, 126, 234, 0.3);
}

.btn:hover {
	background: #5a67d8;
	transform: translateY(-2px);
	box-shadow: 0 6px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary {
	background: #764ba2;
	box-shadow: 0 4px 6px rgba(118, 75, 162, 0.3);
}

.btn-primary:hover {
	background: #6b3f91;
	box-shadow: 0 6px 12px rgba(118, 75, 162, 0.4);
}

footer {
	text-align: center;
	padding: 2rem;
	background: white;
	border-radius: 12px;
	margin-top: 2rem;
	box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

footer p {
	margin-bottom: 0.5rem;
	color: #718096;
}

footer a {
	color: #667eea;
	text-decoration: none;
	font-weight: 600;
}

footer a:hover {
	text-decoration: underline;
}

@media (max-width: 768px) {
	body {
		padding: 1rem 0.5rem;
	}

	h1 {
		font-size: 2rem;
	}

	.subtitle {
		font-size: 1.1rem;
	}

	.card {
		padding: 1.5rem;
	}

	header {
		padding: 2rem 1.5rem;
	}

	.stat-grid {
		grid-template-columns: 1fr;
	}

	.links {
		flex-direction: column;
	}

	.btn {
		width: 100%;
		text-align: center;
	}
}