In this Milan penthouse, the grey backlit Corian Luxo staircase takes shape as an essential architectural gesture, conceived to engage in a dialogue between light and material. Designed by Andrea Rossini, the staircase is interpreted as a continuous, luminous line: a sculptural presence that crosses the space without weighing it down, guiding the eye upward with understated elegance. Here, Corian technology blends with a rarefied aesthetic, turning the ascent into a visual and sensorial experience that defines the identity of the entire interior.