Create a vibrant, abstract background for a coffee package design, vector design. Use a bold color palette including purple, pink, yellow, teal, and orange. Incorporate geometric shapes such as circles, triangles, and wavy lines. Add polka dot patterns and abstract leaf-like designs. The style should be modern and energetic, with overlapping elements and varying opacities. Include some striped patterns and curved lines to add dynamism. The overall effect should be playful and eye-catching, suitable for a trendy coffee brand called 'Choc & Grind'.