body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #8B4513; margin-top: 30px; }
        h1 { font-size: 2.5em; }
        h2 { font-size: 1.8em; border-bottom: 2px solid #FFD700; }
        h3 { font-size: 1.4em; }
        .logo { font-size: 2em; font-weight: bold; color: #FF4500; text-align: center; margin: 20px 0; }
        .nav { background: #FFF8DC; padding: 10px; text-align: center; position: relative; }
        .nav-toggle { display: none; }
        .nav-links { display: flex; justify-content: center; }
        .nav-links a { margin: 0 15px; }
        @media (max-width: 768px) {
            .nav-links { display: none; flex-direction: column; }
            .nav-links.active { display: flex; }
            .nav-toggle { display: block; position: absolute; right: 20px; top: 10px; }
        }
        .download-btn, .login-btn { display: inline-block; padding: 10px 20px; background: #4CAF50; color: white; margin: 10px 0; text-decoration: none; border-radius: 5px; }
        .login-btn { background: #2196F3; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #E0E0E0; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        .footer { margin-top: 40px; padding: 20px; background: #F5F5F5; text-align: center; }