:root{font-family:system-ui,sans-serif;color:#e8edf7;background:#101522}.public-chat{margin:0;min-height:100vh;display:grid;place-items:center;background:#101522}.chat-card{width:min(760px,calc(100% - 2rem));padding:1.5rem;border:1px solid #33405a;border-radius:12px;background:#192133;box-sizing:border-box}.chat-access{max-width:420px}header,.chat-actions{display:flex;gap:1rem;align-items:center;justify-content:space-between}h1{margin:0}p{color:#b8c4d9}.messages{min-height:280px;max-height:55vh;overflow:auto;margin:1rem 0;padding:.75rem;background:#111827;border-radius:8px}.message{padding:.7rem;margin:.5rem 0;border-radius:8px;white-space:pre-wrap;overflow-wrap:anywhere}.message-user{background:#27446e}.message-assistant{background:#26352d}label{display:block;margin:.5rem 0}textarea,input,select{width:100%;box-sizing:border-box;padding:.7rem;border:1px solid #52627f;border-radius:6px;background:#0f1726;color:inherit}textarea{min-height:90px}button{border:0;border-radius:6px;padding:.7rem 1rem;background:#4f8cff;color:#fff;cursor:pointer}.secondary{background:#3a465c}.status,.error{color:#ffbd78}.chat-actions{justify-content:flex-end;flex-wrap:wrap;margin-top:.75rem}.chat-actions select{width:auto}@media(max-width:600px){header{align-items:flex-start}.chat-actions{justify-content:stretch}.chat-actions button{flex:1}}