:root{--bg: #0f1115;--card: #181b22;--line: #262a33;--txt: #e6e8ec;--sub: #9aa0aa;--accent: #5b8cff;--user: #2a3550;--err: #ff6b81}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--txt);font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Malgun Gothic,sans-serif}.center{height:100%;display:flex;align-items:center;justify-content:center;padding:16px}.brand{font-size:22px;font-weight:700}.brand.sm{font-size:17px}.sub{color:var(--sub);font-size:13px;margin-top:2px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px}.auth{width:340px;max-width:100%;display:flex;flex-direction:column;gap:10px;text-align:center}.auth input{padding:12px;background:#0f1115;border:1px solid var(--line);border-radius:10px;color:var(--txt);font-size:14px}.auth input:focus{outline:none;border-color:var(--accent)}.auth button,.composer button{padding:12px;background:var(--accent);color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer}.auth button:disabled,.composer button:disabled{opacity:.5;cursor:default}.switch{color:var(--accent);font-size:13px;cursor:pointer;margin-top:4px}.err{color:var(--err);font-size:13px}.pending{color:var(--sub);font-size:14px;line-height:1.6;margin:8px 0}.chat{height:100%;display:flex;flex-direction:column;max-width:900px;margin:0 auto}header{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line)}header select{background:var(--card);color:var(--txt);border:1px solid var(--line);border-radius:8px;padding:6px 8px;font-size:13px}.spacer{flex:1}.who{color:var(--sub);font-size:13px}.ghost{background:none;border:1px solid var(--line);color:var(--sub);border-radius:8px;padding:6px 10px;font-size:13px;cursor:pointer}.list{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}.empty{color:var(--sub);font-size:14px;text-align:center;margin:auto}.bubble{max-width:80%;padding:11px 14px;border-radius:14px;font-size:14px;line-height:1.55;white-space:pre-wrap;word-break:break-word}.bubble.user{align-self:flex-end;background:var(--user)}.bubble.agent{align-self:flex-start;background:var(--card);border:1px solid var(--line)}.bubble.progress{color:var(--sub)}.open{display:inline-block;margin-top:8px;color:var(--accent);font-size:13px;font-weight:600;text-decoration:none}.dots:after{content:"…";animation:blink 1.2s steps(4) infinite}@keyframes blink{0%,to{opacity:.3}50%{opacity:1}}.composer{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}.composer textarea{flex:1;resize:none;padding:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;color:var(--txt);font-size:14px;font-family:inherit;max-height:120px}.composer textarea:focus{outline:none;border-color:var(--accent)}.modal-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.modal{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;width:560px;max-width:100%;max-height:88vh;overflow-y:auto}.modal h2{font-size:17px;margin-bottom:6px}.muted{color:var(--sub);font-size:12px;line-height:1.5}.modal .guide{margin:12px 0;padding-left:18px;color:var(--txt);font-size:13px;line-height:1.7}.modal .guide code{background:#0f1115;border:1px solid var(--line);border-radius:5px;padding:1px 5px;font-size:12px}.modal .guide a{color:var(--accent)}.modal label{display:block;color:var(--sub);font-size:12px;margin:12px 0 4px}.modal input{width:100%;padding:10px;background:#0f1115;border:1px solid var(--line);border-radius:8px;color:var(--txt);font-size:13px}.modal input:focus{outline:none;border-color:var(--accent)}.modal .status{margin:14px 0 4px;font-size:13px;color:var(--sub)}.modal .row{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}.modal .row button{padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;border:none;cursor:pointer}.modal .row .ghost{background:none;border:1px solid var(--line);color:var(--sub)}.modal .row button:not(.ghost){background:var(--accent);color:#fff}.modal .warn{background:#2a1f14;border:1px solid #5a4320;color:#e8c98a;border-radius:10px;padding:11px 13px;font-size:12.5px;line-height:1.6;margin:12px 0}.modal .warn .link{display:inline-block;margin-top:6px;background:none;border:none;color:var(--accent);font-size:12.5px;font-weight:600;cursor:pointer;padding:0}.connect-box{margin-top:14px;padding:12px;background:#0f1115;border:1px solid var(--line);border-radius:10px}.gbtn{margin-top:10px;width:100%;padding:11px;background:#fff;color:#1a1a1a;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer}.pkm-box{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}.pkm-box label{display:block;color:var(--sub);font-size:12px;margin-bottom:6px;line-height:1.5}.pkm-box select{width:100%;padding:9px;background:var(--card);color:var(--txt);border:1px solid var(--line);border-radius:8px;font-size:13px}.pkm-box .addrow{display:flex;gap:8px}.pkm-box .addrow select,.pkm-box .addrow input{flex:1}.pkm-box .addrow input{padding:9px;background:var(--card);color:var(--txt);border:1px solid var(--line);border-radius:8px;font-size:13px}.pkm-box .addrow input:focus{outline:none;border-color:var(--accent)}.pkm-box+.pkm-box{margin-top:12px}.pkm-box .addrow button{padding:0 14px;border-radius:8px;border:1px solid var(--line);background:none;color:var(--accent);font-size:13px;cursor:pointer}.pkm-box .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.pkm-box .chip{display:inline-flex;align-items:center;gap:5px;background:#222733;color:var(--txt);border-radius:14px;padding:4px 6px 4px 10px;font-size:12px}.pkm-box .chip button{background:none;border:none;color:var(--sub);cursor:pointer;font-size:14px;line-height:1;padding:0 2px}