Cool, precise diagrammatic flat illustration with clean geometric shapes and thin ruled lines, like an architectural drawing of a staircase of uneven stone steps climbing a hillside, one very low step in the middle, soft morning light, limited palette of near-black ink and cobalt blue on plain white (the only colour besides black is cobalt blue), bold simple silhouettes, generous empty space, magazine infographic style, no text, no letters, no numbers, no border