body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #2a5caa; margin-top: 1.5em; }
        h1 { font-size: 2.2em; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.4em; }
        .logo { font-size: 2.5em; font-weight: bold; color: #ff6b35; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); margin-bottom: 20px; }
        .nav { background-color: #f8f9fa; padding: 10px; border-radius: 5px; margin-bottom: 20px; }
        .nav-mobile { display: none; }
        .button { display: inline-block; padding: 10px 20px; background-color: #4CAF50; color: white; text-decoration: none; border-radius: 5px; margin: 10px 0; }
        .download-btn { background-color: #ff6b35; }
        .login-btn { background-color: #2a5caa; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tags { margin: 20px 0; }
        .tag { display: inline-block; background-color: #e0e0e0; padding: 5px 10px; margin: 5px; border-radius: 15px; }
        .footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-mobile { display: block; }
            .logo { font-size: 2em; }
        }