:root {
            --primary: #e53935;
            --secondary: #212121;
            --light: #f5f5f5;
            --dark: #1a1a1a;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
        }
        
        body {
            background-color: var(--light);
            color: var(--secondary);
            line-height: 1.6;
            padding: 2rem;
        }
        
        main {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            padding: 3rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        h1, h2, h3 {
            color: var(--primary);
            margin-bottom: 1rem;
            text-transform: uppercase;
        }
        
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--primary);
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
        }
        
        h2 {
            font-size: 1.8rem;
            margin-top: 2rem;
        }
        
        h3 {
            font-size: 1.3rem;
            margin-top: 1.5rem;
        }
        
        p, ul, ol {
            margin-bottom: 1rem;
        }
        
        ul, ol {
            padding-left: 2rem;
        }
        
        .last-updated {
            font-style: italic;
            margin-bottom: 2rem;
            color: #666;
        }
        
        @media (max-width: 768px) {
            body {
                padding: 1rem;
            }
            
            main {
                padding: 2rem 1rem;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            h2 {
                font-size: 1.5rem;
            }
        }