Create a professional and modern diagram of a MarTech ecosystem for a telecommunications company (Entel Peru) integrating agentic AI for customer service. The diagram should be vertical and include the following layers connected with arrows: 1. Data Sources: mobile app, website, call center, social media, network data (signal towers) 2. Data Platform: CDP, CRM, data lake (customer 360 view) 3. Agentic AI Layer: predictive models, autonomous decision engine, real-time analytics 4. MarTech Tools: marketing automation, AI chatbots, push notifications, SMS systems 5. Customer Channels: mobile app, WhatsApp, SMS, web, call center 6. Analytics & Feedback Loop: dashboards, machine learning optimization, continuous improvement Style: clean, corporate, minimalistic, with icons, soft colors (blue, purple, green), futuristic technology style, high resolution, suitable for a business presentation.