Japanese Riverbank Fireworks Festival Poster

{
  "type": "event poster",
  "theme": "Japanese summer fireworks festival",
  "visuals": {
    "background": "night sky filled with massive, vibrant fireworks blooming in gold, pink, blue, and purple",
    "midground": "river reflecting the colorful fireworks, distant mountain silhouettes, an illuminated arched bridge, and warm city lights along the banks",
    "foreground": "spectators sitting on the grassy riverbank in silhouette, some wearing traditional summer yukata, gently illuminated by warm paper lanterns on the right side"
  },
  "typography_and_layout": {
    "top_left": {
      "catchphrase": "[夏の夜、想いが咲く。]",
      "title": "[碧川市 清流花火大会]",
      "subtitle": "—— 碧き流れに、光の華ひらく ——"
    },
    "mid_left": {
      "date_time": "[2026 8.15] (土) 19:30〜20:30 (予定)",
      "venue": "会場：[碧川（あおがわせ）河畔 清流大橋周辺]"
    },
    "bottom_left_box": {
      "style": "decorative vintage border",
      "content": "[約10,000発 音楽とシンクロする 華やかな花火] 尺玉・スターマイン 水中花火 ほか"
    },
    "footer": {
      "style": "dark blue banner at the bottom",
      "section_count": 3,
      "sections": [
        {
          "icon": "train",
          "title": "アクセス",
          "details": "walking distance and shuttle bus info"
        },
        {
          "icon": "paper lantern",
          "title": "観覧のお願い",
          "details": "3 bullet points about trash, seating, and no drones"
        },
        {
          "element": "QR code",
          "text": "最新情報は公式サイトでご確認ください"
        }
      ],
      "bottom_edge": "organizer and contact info with dummy phone number"
    }
  }
}