AI Photo
Design a vibrant marketing poster background featuring an abstract geometric pattern with bold colors like electric blue, neon pink, and bright yellow. Incorporate dynamic shapes such as triangles, circles, and lines that overlap and create a sense of movement. Add a subtle gradient effect to the background and include faint outlines of popular consumer items like smartphones, coffee cups, and books to hint at a lifestyle theme. Ensure there is a central space left blank for text or a logo, allowing for customization while maintaining an eye-catching visual appeal.