A detailed isometric wireframe drawing of a cube made of smaller cubes, casting a sharp shadow on a white background.

A 3D wireframe cube made of 8 smaller cubes arranged in a 2x2x2 grid, drawn with thin black lines on a white background. The cube should be rendered in isometric projection with the z-axis at exactly 30 degrees (not 45 degrees), showing three visible faces clearly. The wireframe must show the complete internal structure with all edges visible, creating a precise see-through lattice effect. The cube casts an extremely accurate, sharp, hard-edged shadow on a flat surface below - no soft edges or blur on the shadow. The shadow should be dark gray to black with perfectly crisp, geometric edges that precisely match the wireframe structure. The light source creates harsh, directional lighting with no ambient softening. Clean, technical precision with exact geometric accuracy. See more