The wine-dark surface (#260212) is the seed's signature. Not pure black. Not dark navy. Deep wine-red that reads as moody and premium against white. When text and icons appear over it, the contrast is high and the atmosphere is rich. This is the specific dark that signals "we are serious about this product" without the coldness of charcoal or the tech-coded feeling of pure black.

Outfit at light heading weight (400) is a subversion. Most brands using dark dramatic surfaces go heavy on the type — bold headings, strong hierarchy. Marrow goes the opposite direction: Outfit at 400 on dark sections creates elegant, considered statements rather than declarations. The type says "we have thought about this" not "look at us."

Generous 40px paragraph spacing creates enormous breathing room between content blocks. This is an editorial system, not a shopping system. Content needs space to land before the next thought arrives. The 18px base and 1.4 line-height combine for comfortable long-form reading.

Soft layered shadows at very low opacity give cards subtle definition without drama. The dark surface sections are visually heavy enough to create their own depth — no shadow needed there. Spring easing on enters gives the interface a slight bounce, the kind that feels organic and alive rather than mechanical.