Affiche marketing de lancement SaaS

{
  "type": "product update marketing poster",
  "style": "clean modern SaaS landing-page graphic, Apple-like minimalism, soft ambient gradients, subtle shadows, rounded cards, crisp vector UI, high-end promotional design",
  "brand": "OpenAI",
  "canvas": {
    "aspect_ratio": "2:3 vertical",
    "background": "very light cool gray with faint lavender-blue glow gradients, rounded outer frame corners"
  },
  "layout": {
    "sections": [
      {
        "title": "header hero",
        "position": "top",
        "count": 4,
        "labels": [
          "OpenAI logo",
          "PRODUCT UPDATE",
          "main headline",
          "supporting subheadline"
        ]
      },
      {
        "title": "main showcase panel",
        "position": "middle",
        "count": 3,
        "labels": [
          "Codex task card",
          "working checklist card",
          "dark analytics dashboard preview"
        ]
      },
      {
        "title": "feature cards",
        "position": "lower middle",
        "count": 4,
        "labels": [
          "Tackle more",
          "Safe by default",
          "Works with your tools",
          "Built for teams"
        ]
      },
      {
        "title": "call to action banner",
        "position": "bottom",
        "count": 3,
        "labels": [
          "Codex is available now",
          "Try it in ChatGPT or the API.",
          "arrow button"
        ]
      }
    ],
    "centerpiece": "large floating rounded square icon near the upper right with black code brackets symbol"
  },
  "content_blocks": {
    "eyebrow": "[PRODUCT UPDATE]",
    "headline_line_1": "[Codex for]",
    "headline_line_2": "[almost everything]",
    "subheadline": "[From small fixes to large features, Codex helps you ship faster.]",
    "cta_title": "[Codex is available now]"
  },
  "visual_details": {
    "logo": "small black OpenAI knot logo at top left",
    "headline": "very large bold sans-serif headline on left, first line black, second line blue-to-purple gradient text",
    "subheadline_style": "medium gray sans-serif, two lines under headline",
    "floating_icon": "white rounded square tile with soft shadow, containing black <> code symbol, placed upper right",
    "showcase_panel": "large white rounded rectangle with thin border and soft shadow",
    "left_task_area": {
      "count": 3,
      "items": [
        "small pill label with code icon and text Codex",
        "white prompt card reading Add dark mode to the dashboard and update the settings page.",
        "status checklist titled Codex is working..."
      ]
    },
    "checklist": {
      "count": 4,
      "items": [
        "Understand codebase checked in purple",
        "Implement dark mode checked in purple",
        "Update settings page active/in progress with partial circular indicator",
        "Run tests unchecked in gray"
      ]
    },
    "right_dashboard": {
      "theme": "dark mode UI preview",
      "app_name": "Acme",
      "sidebar": {
        "count": 4,
        "items": [
          "Overview selected",
          "Analytics",
          "Projects",
          "Settings"
        ]
      },
      "main_panels": {
        "count": 3,
        "items": [
          "Overview heading",
          "Active Users metric 8,421 with green +12.5% and purple line chart",
          "Recent Activity list with 3 entries"
        ]
      },
      "recent_activity": {
        "count": 3,
        "items": [
          "Update landing page — 2m ago",
          "Fix analytics bug — 1h ago",
          "Improve onboarding flow — 3h ago"
        ]
      }
    },
    "feature_cards": {
      "count": 4,
      "cards": [
        {
          "title": "Tackle more",
          "icon": "purple sparkle/star icon in a pale lavender rounded square",
          "body": "From bug fixes to multi-file refactors, Codex handles it."
        },
        {
          "title": "Safe by default",
          "icon": "blue shield icon in a pale blue rounded square",
          "body": "Runs in a sandboxed environment with read-only by default."
        },
        {
          "title": "Works with your tools",
          "icon": "green terminal prompt icon in a pale mint rounded square",
          "body": "Integrates with GitHub, CI, and your existing workflows."
        },
        {
          "title": "Built for teams",
          "icon": "pink group/users icon in a pale pink rounded square",
          "body": "Share context, review changes, and move faster together."
        }
      ]
    },
    "cta_banner": {
      "style": "wide rounded rectangle with soft purple-blue gradient wash and white circular arrow button on the right",
      "subtitle": "Try it in ChatGPT or the API."
    }
  },
  "composition": "balanced left-aligned typography with modular card grid below, lots of whitespace, premium tech advertisement look",
  "rendering": "sharp typography, subtle depth, gentle glassy lighting, no photographic elements"
}