Opulent fitness club interior, grandiose moldings, ornate details, luxurious materials, velvet drapes, golden accents, crystal chandeliers, marble floors, intricate patterns, lavish furnishings, dramatic lighting, high ceilings, sweeping archways, grand staircases, regal atmosphere, warm color palette, rich textures, indulgent ambiance, futuristic fitness equipment, modern exercise machines, sleek lines, metallic finishes, state-of-the-art technology, panoramic mirrors, expansive spaces, dynamic energy, vibrant colors.