:root{--paper:#fbfaf7;--ink:#16182b;--blue:#2742e8;--yellow:#ffd84d;--muted:#70738a;--line:#e4e2da;--display:"Archivo Black", sans-serif;--body:"Public Sans", sans-serif;--mono:"IBM Plex Mono", monospace}*{box-sizing:border-box;margin:0}html,body,#root{height:100%}body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55}.app{flex-direction:column;max-width:860px;height:100%;margin:0 auto;padding:0 20px;display:flex}.hl{white-space:nowrap;position:relative}.hl:before{content:"";background:var(--yellow);z-index:-1;position:absolute;inset:8% -3% 4% -2%;transform:skew(-8deg)rotate(-1deg)}.topbar{border-bottom:2px solid var(--ink);justify-content:space-between;align-items:baseline;gap:16px;padding:22px 0 14px;display:flex}.wordmark{font-family:var(--display);letter-spacing:.5px;font-size:22px}.wordmark .hl{margin-left:6px}.statusline{font-family:var(--mono);color:var(--muted);align-items:center;gap:8px;font-size:12px;display:flex}.dot{border-radius:50%;width:9px;height:9px}.dot.ok{background:#1fa971}.dot.bad{background:#d0342c}.newchat{font-family:var(--mono);border:1.5px solid var(--ink);color:var(--ink);cursor:pointer;background:0 0;margin-left:10px;padding:4px 10px;font-size:12px}.newchat:hover{background:var(--yellow)}.board{flex:1;padding:26px 0;overflow-y:auto}.empty{padding-top:8vh}.empty h1{font-family:var(--display);max-width:14ch;font-size:clamp(30px,5.4vw,48px);line-height:1.12}.empty .sub{max-width:52ch;color:var(--muted);margin:18px 0 26px}.chips{flex-wrap:wrap;gap:10px;display:flex}.chip{font-family:var(--body);border:1.5px solid var(--ink);color:var(--ink);cursor:pointer;box-shadow:3px 3px 0 var(--ink);background:#fff;padding:9px 14px;font-size:14px;font-weight:600;transition:transform 80ms,box-shadow 80ms}.chip:hover{box-shadow:4px 4px 0 var(--ink);background:var(--yellow);transform:translate(-1px,-1px)}.thread{flex-direction:column;gap:22px;display:flex}.msg .who{font-family:var(--mono);text-transform:uppercase;letter-spacing:1.5px;color:var(--muted);margin-bottom:6px;font-size:11px}.msg .bubble{white-space:pre-wrap;border:1.5px solid var(--ink);background:#fff;padding:14px 16px}.msg.user .bubble{background:var(--ink);color:var(--paper);border-color:var(--ink)}.msg.assistant .bubble{border-left:6px solid var(--blue)}.cursor{color:var(--blue);animation:.9s steps(2,end) infinite blink}@keyframes blink{50%{opacity:0}}@media (prefers-reduced-motion:reduce){.cursor{animation:none}}.error{font-family:var(--mono);color:#d0342c;background:#fff;border:1.5px dashed #d0342c;margin-top:16px;padding:10px 12px;font-size:13px}.composer{border-top:2px solid var(--ink);align-items:flex-end;gap:12px;padding:14px 0 22px;display:flex}.composer textarea{resize:none;font-family:var(--body);border:1.5px solid 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var(--line);justify-content:space-between;align-items:center;gap:8px;padding-top:12px;display:flex}.username{font-family:var(--mono);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.auth-wrap{justify-content:center;align-items:center;height:100%;padding:20px;display:flex}.auth-card{border:2px solid var(--ink);width:100%;max-width:400px;box-shadow:6px 6px 0 var(--ink);background:#fff;padding:30px 28px}.auth-sub{color:var(--muted);margin:12px 0 20px}.auth-card form{flex-direction:column;gap:14px;display:flex}.auth-card label{font-family:var(--mono);text-transform:uppercase;letter-spacing:1px;flex-direction:column;gap:5px;font-size:12px;display:flex}.auth-card input{font-family:var(--body);border:1.5px solid var(--ink);background:#fff;padding:10px 12px;font-size:15px}.auth-card input:focus-visible{outline:3px solid 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var(--yellow);white-space:pre-wrap;background:#fffbe9}.modal-overlay{z-index:50;background:#16182b8c;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--paper);color:var(--ink);border:2px solid var(--ink);box-shadow:6px 6px 0 var(--ink);border-radius:14px;width:calc(100% - 48px);max-width:420px;padding:22px 24px}.modal h3{font-family:var(--display);margin:0 0 10px;font-size:1.1rem}.modal p{margin:0 0 18px;line-height:1.5}.modal-actions{justify-content:flex-end;gap:10px;display:flex}.toolbtn.done{color:#2c662c;cursor:default;background:#e7f5e7;border-color:#3d8b3d}.msg.assistant .answer-head{z-index:5;background:var(--paper);margin:0;padding:6px 0;position:sticky;top:0}.model-badge{text-align:left;border:1.5px solid var(--ink);max-width:560px;box-shadow:4px 4px 0 var(--yellow);background:#fff;border-radius:12px;align-items:flex-start;gap:10px;margin:14px auto 6px;padding:12px 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