Japanese Delivery Referral Banner

{
  "type": "wide Japanese promotional web banner / social ad",
  "canvas": {
    "aspect_ratio": "very wide 3:1",
    "size": "1200x480",
    "background": "deep navy to near-black solid gradient",
    "border": "thin bright green line along the very top and very bottom edges",
    "style": "clean flat vector UI, corporate delivery-service ad, high contrast typography"
  },
  "brand": {
    "position": "top-left",
    "logo": "small rounded green square icon with a white downward triangle, next to bold white lowercase wordmark",
    "text_lines": [
      "menu",
      "Delivery crew"
    ]
  },
  "layout": {
    "sections_count": 5,
    "sections": [
      {
        "title": "brand block",
        "position": "upper left",
        "elements_count": 2,
        "elements": [
          "green app icon",
          "White menu / Delivery crew logo text"
        ]
      },
      {
        "title": "reward amount block",
        "position": "left middle",
        "elements_count": 3,
        "elements": [
          "small yellow text maximum",
          "large yellow amount 15,000",
          "yellow yen symbol 円 below, with a small green-and-white check/leaf accent overlapping the final zeros"
        ]
      },
      {
        "title": "main campaign message",
        "position": "upper center",
        "elements_count": 3,
        "elements": [
          "Large white headline: Friend Invitation Campaign",
          "Larger white subheadline Now both the person introducing and the person being introduced",
          "Get 15,000 yen each with the green emphasis line!"
        ]
      },
      {
        "title": "invite code card",
        "position": "center lower",
        "elements_count": 2,
        "elements": [
          "large red rounded rectangle",
          "White label invitation code and bold code RKE247"
        ]
      },
      {
        "title": "eligibility/date block",
        "position": "upper right",
        "elements_count": 3,
        "elements": [
          "Green rounded pills (Tokyo/Kanagawa limited edition)",
          "Small white text Bonus for 20 deliveries",
          "white date range 2026/4/27 ～ 5/31"
        ]
      }
    ],
    "decorations_count": 3,
    "decorations": [
      "small gray X close icon in the extreme top-right corner",
      "thin dark outlined irregular pentagon on the right side",
      "small flat green delivery truck icon with dark wheels near the lower-right"
    ]
  },
  "typography": {
    "headline": "bold Japanese sans-serif, white",
    "numbers": "extra-large bold sans-serif, yellow",
    "body": "clean sans-serif, white and green accents"
  },
  "color_palette": {
    "navy": "#070d1d",
    "green": "#00a86b",
    "yellow": "#ffc928",
    "red": "#e72727",
    "white": "#ffffff",
    "gray": "#2b3140"
  },
  "text_content": {
    "headline": "{argument name=\"headline text\" default=\"Friend Referral Campaign\"}",
    "subheadline": "{argument name=\"subheadline text\" default=\"Right now, both the person making the introduction and the person being introduced\"}",
    "reward_text": "{argument name=\"reward amount\" default=\"15,000 yen\"}",
    "invite_code": "{argument name=\"invite code\" default=\"RKE247\"}",
    "region_offer": "{argument name=\"region offer text\" default=\"Limited to Tokyo and Kanagawa: Bonus for 20 deliveries.\"}"
  },
  "composition_notes": "Keep the banner airy with most elements aligned to the upper half, strong negative space in the bottom center, crisp vector shapes, no people, no photo realism, and preserve the exact Japanese text placement and color hierarchy."
}