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 { color: #FF6B35; text-align: center; margin-bottom: 30px; }
        h2 { color: #4E944F; border-bottom: 2px solid #FF6B35; padding-bottom: 5px; }
        h3 { color: #8B4513; }
        .logo { font-size: 2.5em; font-weight: bold; color: #FF6B35; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); margin: 20px 0; }
        .nav { background-color: #4E944F; padding: 15px; display: flex; justify-content: space-between; align-items: center; }
        .nav-links a { color: white; margin: 0 10px; text-decoration: none; }
        .mobile-menu { display: none; background: #FF6B35; color: white; padding: 10px; cursor: pointer; }
        .content img { max-width: 100%; height: auto; margin: 20px 0; }
        .btn { display: inline-block; padding: 12px 24px; background: #FF6B35; color: white; text-decoration: none; border-radius: 5px; margin: 10px 0; }
        .download-section, .login-section { text-align: center; margin: 30px 0; }
        .footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 50px; }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-menu { display: block; }
            .nav.active .nav-links { display: flex; flex-direction: column; }
        }