body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        h1, h2, h3 { color: #FF4500; margin-top: 1.5em; }
        h1 { font-size: 2.2em; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.4em; }
        .logo { font-size: 2.5em; font-weight: bold; color: #FF4500; text-align: center; margin: 20px 0; }
        nav { background: #FFD700; padding: 10px; display: flex; justify-content: space-around; flex-wrap: wrap; }
        nav a { color: #000; text-decoration: none; padding: 5px 10px; }
        .mobile-nav-toggle { display: none; background: #FF4500; color: white; padding: 10px; cursor: pointer; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 15px 0; background: #FF4500; color: white; text-decoration: none; border-radius: 5px; font-weight: bold; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }
        th { background: #FFD700; }
        .footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 30px; }
        @media (max-width: 768px) {
            .mobile-nav-toggle { display: block; }
            nav { display: none; flex-direction: column; }
            nav.active { display: flex; }
            nav a { padding: 10px; }
        }