Advanced GSAP ScrollSmoother Momentum Architecture

Act as an Elite UI Motion Director. Architect an incredibly fluid, premium website scrolling experience utilizing the GSAP `ScrollSmoother` plugin. You must correctly initialize the smooth scrolling engine by targeting the [MAIN_WRAPPER_ID] and locking the momentum friction to a buttery 1.5 seconds. Directly integrate HTML data attributes on the child elements (e.g., massive background images and floating typography) to invoke automatic, code-free parallax. You must dictate the exact mathematical [LAG_PARAMETERS] (`data-speed` and `data-lag`) to ensure the foreground text moves significantly faster than the background imagery, creating a staggering, impossible illusion of 3D depth on a 2D screen. Most crucially, dictate the [ACCESSIBILITY_FALLBACK] using `gsap.matchMedia()` to brutally kill the smoother and restore native scrolling for users with 'prefers-reduced-motion' enabled.