:root{color-scheme:dark;--bg: #11110f;--panel: #181812;--panel-strong: #202217;--line: #343528;--text: #f3f0e8;--muted: #aaa493;--accent: #69d99a;--accent-strong: #42bd78;--danger: #fb7185;--ok: #76e4a6;--shadow: 0 20px 60px rgba(0, 0, 0, .28);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at 12% 10%,rgba(105,217,154,.1),transparent 26rem),linear-gradient(135deg,#11110f,#191914 48%,#10140f)}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}.loading,.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}.login-panel{width:min(420px,100%);background:#181812f0;border:1px solid rgba(170,164,147,.18);border-radius:8px;box-shadow:var(--shadow);padding:34px}.brand-lock{width:54px;height:54px;display:grid;place-items:center;color:var(--accent);border:1px solid rgba(105,217,154,.34);border-radius:8px;background:#69d99a14;margin-bottom:24px}.login-panel h1,.chat-header h1,.sidebar h2,.empty-state h2{margin:0;letter-spacing:0}.login-panel h1{font-size:32px;line-height:1.1}.login-panel p{color:var(--muted);margin:10px 0 28px}.login-form{display:grid;gap:16px}label{display:grid;gap:8px;color:#cbd5e1;font-size:14px;font-weight:650}input,textarea{width:100%;border:1px solid var(--line);background:#10110d;color:var(--text);border-radius:8px;outline:none}input{height:46px;padding:0 13px}textarea{resize:none;padding:14px 54px 14px 16px;line-height:1.5}input:focus,textarea:focus{border-color:#69d99acc;box-shadow:0 0 0 3px #69d99a24}.login-form button,.new-chat{height:46px;border:0;border-radius:8px;background:var(--accent);color:#062320;font-weight:760}.form-error{color:#fecdd3;background:#fb718521;border:1px solid rgba(251,113,133,.28);border-radius:8px;padding:10px 12px;font-size:14px}.app-shell{min-height:100vh;display:grid;grid-template-columns:320px 1fr}.sidebar{background:#11110fe6;border-right:1px solid rgba(170,164,147,.16);padding:22px;display:grid;grid-template-rows:auto auto 1fr auto;gap:18px;min-height:100vh}.sidebar-top{display:flex;align-items:center;justify-content:space-between;gap:14px}.section-label{color:var(--accent);display:block;font-size:12px;font-weight:760;letter-spacing:0;text-transform:uppercase;margin-bottom:5px}.sidebar h2{font-size:28px;line-height:1}.icon-button,.logout,.conversation-item,.send-button{border:1px solid var(--line);background:#181812b8;color:var(--text);border-radius:8px}.icon-button{width:40px;height:40px;display:grid;place-items:center}.new-chat{display:flex;align-items:center;justify-content:center;gap:9px}.conversation-list{overflow:auto;display:grid;align-content:start;gap:8px;padding-right:2px}.conversation-item{text-align:left;padding:12px;display:grid;gap:6px}.conversation-item.selected{border-color:#69d99abd;background:#69d99a1a}.conversation-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:680}.conversation-item time{color:var(--muted);font-size:12px}.logout{height:42px;display:flex;align-items:center;justify-content:center;gap:8px}.chat{min-width:0;display:grid;grid-template-rows:auto 1fr auto;min-height:100vh}.chat-header{height:88px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 28px;border-bottom:1px solid rgba(170,164,147,.15)}.chat-header h1{font-size:clamp(22px,3vw,34px);line-height:1.1}.health-pill{height:34px;display:inline-flex;align-items:center;gap:8px;border-radius:8px;padding:0 12px;font-size:13px;font-weight:720;border:1px solid var(--line);color:var(--muted);white-space:nowrap}.health-pill.ok{color:var(--ok);border-color:#76e4a647;background:#76e4a614}.health-pill.down{color:var(--danger);border-color:#fb718542;background:#fb718514}.messages{overflow:auto;padding:28px;display:flex;flex-direction:column;gap:18px}.messages.empty{justify-content:center;align-items:center}.empty-state{max-width:430px;text-align:center;color:var(--muted)}.empty-state h2{color:var(--text);font-size:26px;margin-bottom:10px}.message{max-width:min(820px,86%);border:1px solid rgba(170,164,147,.16);border-radius:8px;padding:14px 16px 16px;background:#181812c2}.message.user{align-self:flex-end;background:#69d99a17;border-color:#69d99a3d}.message.system{align-self:center;border-color:#fb718542;background:#fb718514}.message.pending{opacity:.82}.message.pending .message-content:after{content:"";display:inline-block;width:1.1em;text-align:left;animation:dots 1.3s steps(4,end) infinite}@keyframes dots{0%,20%{content:""}40%{content:"."}60%{content:".."}80%,to{content:"..."}}.message-role{color:var(--accent);font-size:12px;font-weight:780;text-transform:uppercase;margin-bottom:8px}.message-content{white-space:pre-wrap;line-height:1.58;color:#eee9de}.composer{margin:0 28px 28px;position:relative}.send-button{position:absolute;right:9px;bottom:9px;width:40px;height:40px;display:grid;place-items:center;color:#062320;background:var(--accent);border-color:var(--accent-strong)}@media(max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{min-height:auto;border-right:0;border-bottom:1px solid rgba(170,164,147,.16);grid-template-rows:auto auto auto auto}.conversation-list{display:flex;overflow-x:auto;padding-bottom:4px}.conversation-item{min-width:220px}.chat{min-height:70vh}.chat-header{height:auto;align-items:flex-start;flex-direction:column;padding:20px}.messages{padding:20px}.message{max-width:100%}.composer{margin:0 20px 20px}}