Create a soft, abstract gradient background with smooth transitions. Use a color palette that shifts from deep black on the left, fading into warm orange in the center, and transitioning into soft yellow on the right. The gradient should be seamless and subtle, with a slightly grainy texture to give it a vintage, retro aesthetic. The overall style should be minimalistic, atmospheric, and modern, with a soft-focus effect that emphasizes the gradient’s smooth transitions and warm, calming tones. <https://s.mj.run/7LTWRWvtJ5g>