Generate a modern two-story house on a sloping plot of approximately 1300 m² with a 10 m height difference. The terrain is trapezoidal in shape, with the upper part having around 10 m of frontage and the lower part around 20-25 m of frontage. The house should be placed in the middle of the plot, with neighboring houses on the sides and either a street or a green zone at the lower part. Design a very simple concrete structure with a large glass facade. The glass should be recessed by 1-1.5 meters from the edge of the structure to provide shade. The house should have a 12 m x 12 m footprint. The top floor should feature a kitchen with an island, followed by a dining area, a living room with a sofa, fireplace, and TV, and a small office on the right-hand side, approximately 2 meters wide. The ground floor should begin with a 3.5-meter porch and a glass wall leading to an entertainment area with sofas and a dining-style table (similar to a 'txoko' in Bilbao) on the right. On the left, there should be a recreation area with a foosball table and a ping-pong table. Surround the house with trees, especially alders and fruit trees. The concrete should be a light grey, close to white. Vehicles should enter the property from the lower part of the plot. There is no garage inside the house, so cars would park outside.