body {
				font-family: Arial, sans-serif;
				margin: 0;
				padding: 0;
			}
			.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
			.btn { padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer; }
			.btn-primary { background-color: #007bff; color: white; }