body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 2.2em; font-weight: bold; color: #FF6B00; text-shadow: 2px 2px 4px rgba(0,0,0,0.1); margin: 15px 0; }
        nav { background: #1E3A8A; padding: 10px; border-radius: 8px; margin-bottom: 20px; }
        nav a { color: white; text-decoration: none; margin: 0 15px; font-weight: 500; }
        h1 { color: #1E3A8A; border-bottom: 3px solid #FF6B00; padding-bottom: 10px; }
        h2 { color: #FF6B00; margin: 25px 0 15px; }
        h3 { color: #1E3A8A; margin: 20px 0 10px; }
        .download-btn, .login-btn { display: inline-block; background: #22C55E; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 30px; font-weight: bold; text-decoration: none; }
        .login-btn { background: #3B82F6; }
        img { max-width: 100%; height: auto; border-radius: 10px; margin: 20px 0; }
        .mobile-nav { display: none; background: #1E3A8A; color: white; padding: 10px; text-align: center; cursor: pointer; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-nav { display: block; }
            .active { display: block !important; }
        }