TULLY'S COFFEE Style Design System (DESIGN.md, Japanese UI)

Design approach: A warm design that expresses the world of coffee through color. It recreates the cafe space with three tiers: dark brown (dark roast), beige (cafe au lait), and cream (fresh cream). A flexible structure where button styles change from page to page - Density: A relaxed, cafe-style layout. A card arrangement that shows menu photos large, with low-to-medium information density - Keywords: coffee brown, cafe tone, pill button, rounded card, warmth - Characteristics: A two-layer structure that sets Japanese text in system fonts (Hiragino Kaku Gothic / Yu Gothic / Meiryo) and uses R