Professional, clean LinkedIn banner background showcasing the theme of gamified learning and sustainability. Visually represent concepts like climate action, circular economy, collective intelligence, and systems thinking. Use abstract but dynamic illustrations — such as teams collaborating, playful strategy elements (cards, icons, progress bars, etc.), and subtle environmental symbols (earth, trees, arrows, recycling). Include modern, sleek color palette (blues, greens, white, light gray). Keep center area visually calm and uncluttered to leave space for logos and text. Aspect ratio 761x191 px. See more