Yohaku Coffee Minimalist Japanese Announcement Poster AI Image Prompt

A square Instagram announcement poster for a fictional Japanese coffee brand. Style: minimal premium lifestyle design, warm beige and olive-gray palette, soft natural sunlight, calm Japanese cafe atmosphere, editorial magazine layout, elegant serif typography mixed with spaced small caps, subtle thin divider lines and botanical line art. Canvas: 1:1 aspect ratio, 1024x1024 size, warm off-white paper texture background with muted gray-green and charcoal side panels. Brand name: {argument name="brand name" default="余白珈琲"}, romanized name: Y O H A K U C O F F E E, logo: simple thin-line oval emblem containing a small coffee cup, a sprig, and tiny dots, placed in the upper-left olive panel. Photography: sunlit cafe tabletop still life with realistic shadows from a leafy branch, main objects: ceramic latte cup on matching saucer with rosetta latte art (centered lower-left), single slice of coffee cheesecake or tart on a beige plate with whipped cream, two coffee beans, tiny herb garnish, and a gold fork (lower-right), small clear glass vase with water and a leafy green branch (upper-right), minimal printed card or booklet partially visible in the lower-left foreground. Lighting: late morning window light from upper right, long soft shadows, warm highlights, shallow editorial realism. Layout: 7 sections: upper-left vertical olive panel (logo plus brand name 余白珈琲 and spaced English Y O H A K U C O F F E E), left off-white vertical strip (vertical Japanese copy: 心に余白を。暮らしに、いい時間を。 with a thin vertical line), top-center (small label NEW POST with a short underline), center (large Japanese headline {argument name="headline text" default="余白珈琲"}), below headline (thin horizontal divider lines with a small center dot, followed by subheadline {argument name="subheadline text" default="一杯の余白で、日常を整える。"}), right charcoal vertical strip (vertical English text Y O H A K U / C O F F E E / T O K Y O with a thin vertical line), bottom beige footer (centered spaced text coffee / sweets / calm time with underline, plus a lower-right circular stamp containing {argument name="stamp text" default="余白が、いちばんのぜいたく。"} and a tiny botanical sprig). Composition: large headline occupies the upper middle, product photography fills the lower half, structured asymmetrical side panels frame the image, lots of negative space, delicate circular line accents near the corners. Typography: Japanese Mincho-style serif for the headline, small caps tracking for English labels, refined and airy spacing. Mood: quiet, sophisticated, restorative, suitable for announcing a new blog post or Shopify store case study for a Tokyo Nakameguro cafe goods brand. Negative prompt: no people, no clutter, no bright saturated colors, no cartoon style, no heavy drop shadows, no distorted text, no extra logos.