create an open air rooftop gym on the roof of the building keep the overall building form facade aerial viewpoint and surrounding context the same transform part of the roof into a designed fitness terrace inspired by the attached reference images use the reference images as a material and design guide corten steel perimeter walls planter edges warm rust colored metal with a natural weathered finish integrated planting along the roof edge with soft drought tolerant greenery green turf flooring across the main workout area a clean minimal high end outdoor wellness aesthetic include a curated rooftop gym layout with equipment such as rowing machines squat rack weight bench barbells and weight plates stationary bikes sled or functional training zone open stretching workout space keep the equipment layout clean and spacious not overcrowded make the rooftop gym feel luxury architectural and cohesive with the building design preserve realistic roof circulation and integrate the gym around existing roof elements as needed the result should feel like a refined private rooftop training space with corten steel planting and turf as the main visual language