.oai-chatbot-widget {
  max-width: 350px; background: #fff; border: 1px solid #ddd; border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06); padding: 10px; font-family: Arial, sans-serif;
}
.oai-chat-window {
  min-height: 180px; max-height: 220px; overflow-y: auto;
  border: 1px solid #eee; background: #fafbfc; margin-bottom: 8px; padding: 6px;
}
.user-msg { text-align: right; color: #2c7; margin: 4px 0; }
.bot-msg { text-align: left; color: #222; margin: 4px 0; }
.oai-chat-form input, .oai-chat-form-fallback input {
  width: 72%; padding: 6px; border-radius: 3px; border: 1px solid #ccc; margin-right: 5px;
}
.oai-chat-form button, .oai-chat-form-fallback button {
  padding: 6px 14px; border-radius: 3px; border: none; background: #22a; color: #fff;
}