body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        header { background: #FF9933; padding: 15px; color: white; text-align: center; }
        .logo { font-size: 28px; font-weight: bold; letter-spacing: 2px; }
        nav { display: flex; justify-content: center; gap: 20px; margin: 10px 0; }
        nav a { color: white; text-decoration: none; }
        .mobile-menu { display: none; }
        h1 { color: #138808; border-bottom: 3px solid #FF9933; padding-bottom: 10px; }
        h2 { color: #FF9933; margin-top: 30px; }
        h3 { color: #138808; }
        .download-btn { background: #138808; color: white; padding: 10px 20px; text-align: center; margin: 20px 0; display: inline-block; }
        .login-btn { background: #FF9933; color: white; padding: 10px 20px; text-align: center; margin: 20px 0; display: inline-block; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            .mobile-menu { display: block; text-align: center; margin: 10px 0; }
            nav { display: none; flex-direction: column; }
            nav.active { display: flex; }
        }