Underground train station, minimalist architecture, clean lines, industrial materials, exposed ductwork, concrete floors, steel beams, functional lighting, soft warm glow, LED strips, indirect illumination, subtle color temperatures, neutral tone palette, calm atmosphere, quiet ambiance, morning commute, rush hour bustle, urban cityscape, metropolitan feel, modern signage, sleek benches, minimalist advertisements, subtle branding, natural stone accents, industrial-chic decor.