A 3d rendering of a modern, rustic indoor space with a stone staircase. the staircase is made of wooden planks and has a glass railing on one side, allowing natural light to filter through. the walls are made of rough, textured stone, and the floor is tiled with light-colored stone tiles. on the other side of the staircase, there is a small balcony with hanging baskets filled with red flowers, adding a touch of greenery to the space. the balcony is framed by large windows that let in natural light, allowing a glimpse of the greenery outside. the overall atmosphere of the space is cozy and inviting, with a warm and inviting ambiance.