body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #1a73e8; color: white; padding: 10px; text-align: center; cursor: pointer; }
        nav { background: #1a73e8; padding: 15px; display: flex; justify-content: space-between; align-items: center; }
        nav a { color: white; text-decoration: none; margin: 0 10px; font-weight: bold; }
        .logo { font-size: 24px; font-weight: 900; letter-spacing: 1px; }
        h1 { color: #1a73e8; margin: 30px 0 20px; }
        h2 { color: #e91e63; border-bottom: 2px solid #eee; padding-bottom: 5px; margin: 25px 0 15px; }
        h3 { color: #4caf50; margin: 20px 0 10px; }
        .download-btn, .login-btn { background: #ff5722; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; margin: 15px 0; display: inline-block; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        .stats-box { background: #f5f5f5; padding: 15px; border-radius: 8px; margin: 20px 0; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            .mobile-nav { display: block; }
            nav { flex-direction: column; display: none; }
            nav.active { display: flex; }
            nav a { margin: 5px 0; }
        }