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  <!-- Sky gradients via simple shapes (no external defs) -->
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  <!-- Rain -->
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    <path d="M30,150 L110,560" opacity="0.45"/>
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  <!-- Distant clouds / storm haze -->
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  <!-- Lighthouse base silhouette and rocky outcrop -->
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    <!-- Rock outcrop -->
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    <!-- Rock shadow -->
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  <!-- Water surface -->
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    <!-- Sea spray strokes -->
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      <path d="M700,562 C725,548 750,551 775,562"/>
    </g>
  </g>

  <!-- Lighthouse body -->
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    <!-- Tower -->
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             L388,560
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    <!-- Tower left shadow -->
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    <!-- Tower stripes (simple bands) -->
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      <rect x="395" y="260" width="110" height="34" fill="#0B1630" opacity="0.06"/>
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      <rect x="395" y="414" width="110" height="34" fill="#0B1630" opacity="0.08"/>
    </g>

    <!-- Base ledge -->
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             C400,520 412,530 426,534
             C450,540 480,540 506,534
             C520,530 532,520 512,500
             L512,560
             L388,560 Z" fill="#F2F2F2" opacity="0.98"/>
  </g>

  <!-- Lighthouse top -->
  <g>
    <!-- Lantern section -->
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             C412,132 420,120 430,105
             C440,120 448,132 455,150
             L455,195
             L405,195 Z" fill="#F2F2F2" opacity="0.98"/>
    <!-- Dome cap -->
    <path d="M428,92
             C428,92 438,92 438,92
             C458,92 468,110 458,122
             C448,136 440,140 433,132
             C426,140 418,136 408,122
             C398,110 408,92 428,92 Z" fill="#B24A4A" opacity="0.75"/>
    <!-- Rails -->
    <path d="M420,186 C435,176 445,176 460,186" fill="none" stroke="#163E6E" stroke-width="3" opacity="0.45" stroke-linecap="round"/>
    <rect x="425" y="145" width="26" height="40" rx="6" fill="#0B1630" opacity="0.2"/>
    <rect x="430" y="158" width="16" height="18" rx="4" fill="#E9F4FF" opacity="0.2"/>
  </g>

  <!-- Light beam -->
  <g>
    <!-- Beam core -->
    <path d="M455,195
             C520,230 575,305 640,465
             C652,494 666,515 690,530
             L690,540
             C660,525 628,500 595,460
             C535,385 490,280 455,235 Z" fill="#E9F4FF" opacity="0.78"/>
    <!-- Beam flare -->
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             C535,245 600,330 655,465
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             C700,536 684,544 665,548
             C640,552 610,538 590,515
             C540,455 500,340 455,245 Z" fill="#E9F4FF" opacity="0.45"/>
    <!-- Beam edge -->
    <path d="M455,195
             C545,245 610,330 675,505" fill="none" stroke="#E9F4FF" stroke-width="3" opacity="0.65" stroke-linecap="round"/>
  </g>

  <!-- Glassy rain streaks passing tower (subtle) -->
  <g stroke="#6EC6FF" stroke-width="2" opacity="0.55" stroke-linecap="round">
    <path d="M440,210 L420,545"/>
    <path d="M465,210 L450,545"/>
    <path d="M410,240 L405,560" opacity="0.35"/>
    <path d="M500,240 L495,560" opacity="0.35"/>
  </g>

  <!-- Foreground wet rock highlights -->
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    <path d="M175,540 C210,515 260,505 295,512 C330,520 365,500 410,498 C455,496 490,520 525,508 C570,492 615,510 650,530 C685,550 710,560 720,575
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          fill="#6EC6FF" opacity="0.10"/>
  </g>
</svg>

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  "model": "openai/gpt-5.4-nano",
  "system": "Respond with a single complete <svg> element and nothing else. No markdown fences, no explanation. Include an explicit viewBox. Do not reference external fonts, images, or stylesheets — the SVG must be fully self-contained.",
  "messages": [
    {
      "role": "user",
      "content": "«REDACTED — 58 words, 338 chars»"
    }
  ],
  "maxOutputTokens": 16000,
  "gatewayStringId": "68b9ca2e-24f6-4b26-96f8-029a2a0acdf1"
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