#ai-chat-widget {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 9999;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  }

  #ai-chat-toggle {
    border: 0;
    border-radius: 999px;
    padding: 14px 18px;
    background: #31487b;
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 1, 1, 0.25);
  }

  #ai-chat-panel {
    position: absolute;
    right: 0;
    bottom: 64px;
    width: min(420px, calc(100vw - 32px));
    height: min(680px, calc(100vh - 120px));
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
  }

  #ai-chat-panel iframe {
    width: 100%;
    height: 100%;
    border: 0;
  }

  @media (max-width: 640px) {
    #ai-chat-widget {
      right: 16px;
      bottom: 35px;
    }

    #ai-chat-panel {
      position: fixed;
      right: 12px;
      bottom: 76px;
      width: calc(100vw - 24px);
      height: calc(100vh - 104px);
    }
  }