body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; background: #ff6b35; color: white; padding: 10px; text-align: center; }
            .nav-toggle { cursor: pointer; }
        }
        h1 { color: #ff6b35; font-size: 2.5em; border-bottom: 3px solid #ffd166; padding-bottom: 10px; }
        h2 { color: #06d6a0; margin-top: 30px; }
        h3 { color: #118ab2; }
        .download-btn, .login-btn { 
            display: inline-block; 
            background: #073b4c; 
            color: white; 
            padding: 12px 25px; 
            margin: 15px 0; 
            text-decoration: none; 
            border-radius: 5px; 
            font-weight: bold; 
        }
        .img-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        .tag { background: #ffd166; padding: 3px 8px; margin: 5px; display: inline-block; }
        footer { margin-top: 40px; padding: 20px; background: #073b4c; color: white; }