// ── App Init ──

document.addEventListener('DOMContentLoaded', () => {
  // System Prompt Toggle
  $('#showSystem').addEventListener('change', () => {
    $('#systemPrompt').classList.toggle('visible', $('#showSystem').checked);
  });

  // Send Button
  $('#send').addEventListener('click', sendMessage);

  // Ctrl+Enter
  $('#input').addEventListener('keydown', (e) => {
    if (e.ctrlKey && e.key === 'Enter') sendMessage();
  });

  // Auto-Resize Textarea
  $('#input').addEventListener('input', function () {
    this.style.height = 'auto';
    this.style.height = Math.min(this.scrollHeight, 150) + 'px';
  });

  // Clear Button
  $('#clearBtn').addEventListener('click', clearChat);

  // History laden
  loadHistory();
});