Create a soft, abstract gradient background with smooth transitions. Use a color palette that shifts from teal blue on the left, fading into soft beige in the center, and transitioning into warm orange on the right. The gradient should be smooth and subtle, with a slight grainy texture for a vintage, retro aesthetic. The overall look should be minimalistic, atmospheric, and modern, with a soft-focus effect that emphasizes the gradient’s gentle transitions and calming color tones."