<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><rect width="1200" height="800" fill="#141b22"/><rect x="120" y="130" width="960" height="540" rx="30" fill="#eff3f7"/><rect x="180" y="500" width="840" height="110" rx="18" fill="#dbe2e8"/><text x="150" y="100" fill="#eef2f6" font-size="42" font-family="Inter, Arial, sans-serif" font-weight="700">Resultado / placeholder IA</text></svg>
