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

Design policy: A fast-loading, utility-focused UI built on a system font stack and neutral grays. Ornamentation is stripped away, and recipe video thumbnails and photos are the stars of the content - Density: Recipes are arranged in a high-density card grid. Text is compact (11–17px) with fairly high information density - Keywords: system fonts, neutral gray, coral accent, video-thumbnail-centric, practical UI - Characteristics: - The brand color is coral #f3765e. It is used for search buttons and app icons, but sparingly on the web - The text color is pure black #000000 (adopting pure black,