async function go(prompt) {
    const cont = document.getElementById('content'), choi = document.getElementById('choices'),
          imgBox = document.getElementById('image-container'), imgStatus = document.getElementById('img-status');

    choi.innerHTML = '<em>Kirjoitetaan ja piirretään...</em>';
    imgBox.style.display = "flex"; imgStatus.style.display = "block";
    const oldImg = imgBox.querySelector('img'); if(oldImg) oldImg.remove();

    // 1. KUVA TAUSTALLA
    const imgPrompt = `${hero} ${pers} ${env} fairy tale illustration`;
    fetch(API_URL, {
        method: 'POST',
        headers: {'Content-Type': 'application/json'},
        body: JSON.stringify({type: 'image', prompt: imgPrompt})
    }).then(r => r.json()).then(d => {
        if(d.imageUrl) {
            const img = document.createElement('img');
            img.src = d.imageUrl;
            img.onload = () => { imgStatus.style.display = 'none'; };
            imgBox.appendChild(img);
        }
    }).catch(e => console.error("Kuva-virhe:", e));

    // 2. TEKSTI
    history.push({role: 'user', content: prompt});
    try {
        const data = await call(history);
        const storyText = data.text;
        history.push({role: 'assistant', content: storyText});
        
        lueAaneen(storyText);
        typeOut(cont, storyText, async () => {
            // Jatkovalinnat haetaan tässä...
        });
    } catch(e) { choi.innerHTML = "Virhe: " + e.message; }
}