body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background: linear-gradient(135deg, #FF9933, #138808); color: white; padding: 20px; border-radius: 10px; margin-bottom: 30px; }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 28px; font-weight: bold; color: white; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .menu-btn { display: none; background: #fff; border: none; padding: 8px 12px; border-radius: 5px; }
        h1 { color: #FF9933; border-bottom: 3px solid #138808; padding-bottom: 10px; }
        h2 { color: #138808; margin-top: 25px; }
        h3 { color: #FF9933; }
        .download-btn, .login-btn { display: inline-block; background: #138808; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background: #FF9933; }
        img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }
        footer { background: #333; color: white; padding: 20px; margin-top: 40px; border-radius: 10px; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .menu { display: none; }
            .menu-btn { display: block; }
            .mobile-nav.active { display: block; position: absolute; top: 80px; left: 0; right: 0; background: #138808; padding: 15px; }
            .mobile-nav a { display: block; color: white; padding: 10px; }
        }