body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; line-height: 1.6; color: #333; max-width: 800px; margin: 0 auto; padding: 20px; }
        header, footer { background: #f4f7f6; padding: 20px; text-align: center; }
        nav a { margin: 0 15px; text-decoration: none; color: #0066cc; font-weight: bold; }
        h1, h2 { color: #222; }
        .disclaimer { font-size: 0.85em; color: #666; background: #fff3cd; padding: 15px; border-left: 5px solid #ffc107; margin: 20px 0; }