imagine prompt eco resort visitor centre integrated into 2 lower central ravine slopes 5 terraced levels following natural topography contours bridge like structure with continuous vegetated underpass materials walnut wood panels vertical horizontal corten steel cladding weathered brushed piasentina stone grey grooved roman travertine string courses 60 glazing 40 opaque materials staggered flat roofs with stepped profile minimal integrated foundations shielded low intensity lighting visual permeability landscape preservation no altered terrain modified topography land disturbance v 7 0 style raw iw 1 5