A high-resolution, black-and-white line art illustration of a cat taking a peaceful nap on a rooftop. The scene is simple and clean, designed as a coloring page with bold, clear outlines. The cat is curled up comfortably, with delicate details in its whiskers, and relaxed expression. The rooftop has subtle textures like tiles or shingles, with maybe a small chimney or clothesline in the background for added interest. The style is whimsical yet realistic enough for coloring enthusiasts. No shading—only crisp, printable line work with smooth edges, suitable for adults. Ensure the composition is balanced, leaving some white space around the cat for easy printing and coloring.