body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f9f9f9; }
        header { background-color: #ff6b35; color: white; padding: 1rem; text-align: center; position: relative; }
        .logo { font-size: 2rem; font-weight: bold; margin-bottom: 0.5rem; }
        nav ul { list-style-type: none; padding: 0; display: flex; justify-content: center; }
        nav ul li { margin: 0 1rem; }
        nav ul li a { color: white; text-decoration: none; }
        .mobile-nav-toggle { display: none; position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }
        @media (max-width: 768px) {
            nav ul { display: none; flex-direction: column; }
            nav ul.active { display: flex; }
            .mobile-nav-toggle { display: block; }
        }
        main { padding: 1rem; max-width: 1200px; margin: 0 auto; }
        section { margin-bottom: 2rem; }
        h1, h2, h3 { color: #ff6b35; }
        h1 { font-size: 2.5rem; margin-bottom: 1rem; }
        h2 { font-size: 2rem; margin-top: 2rem; }
        h3 { font-size: 1.5rem; }
        .download-btn, .login-btn { display: inline-block; background-color: #ff6b35; color: white; padding: 0.5rem 1rem; text-decoration: none; border-radius: 5px; margin: 0.5rem 0; }
        img { max-width: 100%; height: auto; display: block; margin: 1rem auto; }
        footer { background-color: #333; color: white; text-align: center; padding: 1rem; }
        .tags { margin: 1rem 0; }
        .tag { display: inline-block; background-color: #555; color: white; padding: 0.2rem 0.5rem; border-radius: 3px; margin: 0.2rem; }