Step into an expansive and sophisticated modern interior, highlighting a harmonious blend of dark wood, polished marble, and natural light. A plush L-shaped sectional sofa on a textured gray rug invites comfort, set against dramatic dark wood paneling and a striking floating staircase, all elegantly illuminated by hidden warm LED strips. The highly reflective brown-gray marble floor mirrors the bright natural light streaming from large industrial-style windows, creating an airy yet intimate atmosphere. This image is ideal for high-end interior design portfolios, real estate marketing, luxury brand campaigns, and architectural firm presentations, conveying elegance and contemporary living.