Vibrant gym interior, bold color blocking, dynamic neon accents, industrial metal beams, polished concrete floors, motivational quotes, fitness equipment, free weights, treadmills, mirrored walls, modern LED lighting, high ceilings, urban loft ambiance, energetic atmosphere, contrasting color temperatures, monochromatic tone-on-tone, analogous harmony, split-complementary contrast, warm beige tones, cool blue hues, neutral gray backgrounds, accent walls, statement furniture pieces, minimalist decor, athletic wear displays, fitness trackers, digital screens, futuristic aesthetic.