body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #e63946; text-align: center; }
        h2 { color: #457b9d; border-bottom: 2px solid #f1faee; padding-bottom: 5px; }
        h3 { color: #1d3557; }
        .logo { font-size: 2.5em; font-weight: bold; text-align: center; margin: 20px 0; color: #e63946; }
        .nav { background: #f1faee; padding: 10px; display: flex; justify-content: space-around; flex-wrap: wrap; }
        .nav a { text-decoration: none; color: #1d3557; font-weight: bold; }
        .mobile-toggle { display: none; }
        .download-btn { background: #457b9d; color: white; padding: 10px 20px; border-radius: 5px; text-align: center; margin: 20px 0; }
        .login-btn { background: #e63946; color: white; padding: 10px 20px; border-radius: 5px; text-align: center; margin: 20px 0; }
        .image-container { text-align: center; margin: 30px 0; }
        .footer { background: #1d3557; color: white; padding: 20px; text-align: center; margin-top: 50px; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; display: none; }
            .nav.active { display: flex; }
            .mobile-toggle { display: block; background: #457b9d; color: white; padding: 10px; text-align: center; cursor: pointer; }
        }