MOSH Style Design System (DESIGN.md, Japanese UI)

Design policy: A coral-red brand accent plus a neutral grayscale, balancing warmth with modern brightness. Situated in the creator-economy context, themed around passion ("creating an economy where passion circulates") - Density: Generous hero areas. Body text and navigation use the Tailwind standard scale (16px / line-height 1.5) for a compact feel - Keywords: warm, light, the well-ordered letterforms of IBM Plex JP, coral-red accents, SaaS-like cleanliness - Characteristics: - Large numbers (90,000, status displays) use the Latin display typeface degular at font-weight: 100–200 (hairline / e