A magazine-style layout emphasizing architectural design of a circular residence featuring innovative construction materials, an open central courtyard, gently curved walls, a prominent central skylight, and two levels seamlessly connected by an elegant spiral staircase. The residence is designed to follow the sinuous contours of the terrain. Include a distant viewpoint to showcase how the house integrates harmoniously with the undulating landscape. The drawing should use varying line weights to clearly highlight key architectural elements, with bold lines for primary structures and finer lines for intricate details.