:root{font:16px/1.5 system-ui,sans-serif;color:#1d2623;background:#f4f5f1}*{box-sizing:border-box}body{margin:0}main{max-width:820px;margin:auto;min-height:100vh;padding:28px 20px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:42px}header strong{letter-spacing:.12em}header span{display:block;font-size:13px;color:#68716d}h1{font-size:28px}form{margin:0}label{display:block;margin:14px 0;font-weight:600}input,textarea,select{width:100%;font:inherit;padding:12px;border:1px solid #b9c0bc;border-radius:8px;background:#fff}textarea{resize:vertical}button{font:inherit;border:0;border-radius:8px;padding:10px 15px;background:#173f36;color:#fff;cursor:pointer}.secondary{background:#e4e9e6;color:#173f36}.actions{display:flex;gap:8px;margin-top:10px}.assistant,.user{padding:15px 18px;border-radius:12px;margin:12px 0;white-space:pre-wrap}.assistant{background:#fff;border:1px solid #dfe3df}.user{background:#dfe9e4;margin-left:12%}.meta,.hint{font-size:13px;color:#65706b}.meta{border-top:1px solid #e5e8e5;margin-top:12px;padding-top:9px}#conversation{margin-bottom:18px}details{margin-top:20px;background:#fff;padding:12px 15px;border:1px solid #dfe3df;border-radius:10px}#status{color:#59635f}#login-panel{max-width:430px;margin:10vh auto}#logout{background:transparent;color:#173f36;padding:6px}