.oai-kb-chatbot{border:1px solid #e5e7eb;border-radius:1rem;padding:1rem;max-width:700px;margin:1rem auto;font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto}
.oai-kb-messages{display:flex;flex-direction:column;gap:.75rem;min-height:100px}
.oai-kb-msg{padding:.6rem .8rem;border-radius:.8rem;max-width:85%}
.oai-kb-msg.user{background:#eef2ff;align-self:flex-end}
.oai-kb-msg.bot{background:#f3f4f6}
.oai-kb-form{display:flex;gap:.5rem;margin-top:.75rem}
.oai-kb-input{flex:1;padding:.6rem .8rem;border:1px solid #e5e7eb;border-radius:.6rem}
.oai-kb-send{padding:.6rem .9rem;border:0;background:#111827;color:#fff;border-radius:.6rem;cursor:pointer}
.oai-kb-cite{font-size:12px;color:#6b7280;margin-top:.25rem}