Modern web application architecture diagram, minimalist background, digital illustration style, simple lines, 3D boxes, colorful icons, futuristic fonts, detailed network devices, routers, servers, databases, clouds, wireless signals, laptops, smartphones, tablets, desktop computers, connected devices, data flow arrows, user interface screens, coding windows, debugging tools, agile development boards, IT professionals, offices, meeting rooms, whiteboards, sticky notes, coffee cups, relaxed atmosphere, soft lighting, shallow depth of field.