Pure white background. The surface (#F8F8F8) is barely a shade off-white. The distinction is minimal by design. Downpour doesn't use dramatic surface changes to create hierarchy. It uses borders, text weight, and spacing. The near-black accent (#1A1D20) is functionally black. Every button, every link, every call to action is a dark stamp on white paper.

Inter at weight 500 for headings. Medium weight. Not bold enough to feel like marketing. Not light enough to disappear. The perfect weight for technical documentation. At 14px base size with a 1.333 type scale, the system is compact. Dense without being cramped. The normal letter-spacing lets headings breathe naturally.

Body text at regular weight (400) with 1.6 line height is generous for such a compact system. That extra vertical space between lines is crucial at 14px. Small text needs more leading to remain comfortable. The system prioritizes long-form reading (documentation, API references, code explanations) and the line height proves it.

No shadows. No depth. No glow. Elements are defined by borders and surface color. The line-style dividers separate sections cleanly. The smoothness of the motion speed keeps interactions from feeling cheap or instantaneous. There's a measured quality to every state change. The gradient (a horizontal fade from the surface color) is the only atmospheric element. It creates a subtle horizon line that gives pages a sense of direction without adding complexity.