:root{--bg:#ffffff;--surface:#f4f4f5;--text:#18181b;--muted:#71717a;--primary:#2563eb;--danger:#dc2626;--ok:#16a34a;--radius:8px;--space:12px;--font:system-ui,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#111111;--surface:#1c1c1f;--text:#f4f4f5;--muted:#a1a1aa}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font)}button,input,textarea,select{font:inherit}.app{display:flex;flex-direction:column;height:100dvh;max-width:60rem;margin:0 auto;padding:0 var(--space)}.log{flex:1;overflow:auto;padding:var(--space) 0}.msg{background:var(--surface);border-radius:var(--radius);padding:var(--space);margin:6px 0;white-space:pre-wrap}.row{display:flex;gap:8px;padding:var(--space) 0}.row textarea{flex:1;min-height:44px}.err{color:var(--danger)}.muted{color:var(--muted)}button{min-height:44px;padding:0 16px;border-radius:var(--radius);border:1px solid var(--muted);background:var(--primary);color:#fff}button.secondary{background:transparent;color:var(--text)}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.chat{display:flex;gap:12px;height:calc(100dvh - 70px);min-height:24rem}.side{width:15rem;flex:0 0 15rem;overflow:auto;border-right:1px solid var(--surface);padding-right:8px}.main{flex:1;min-width:0;display:flex;flex-direction:column}.thread{flex:1;overflow:auto;display:flex;flex-direction:column;gap:10px;padding:8px 2px}.pair{display:flex;flex-direction:column;gap:6px}.bubble{max-width:85%;padding:10px 12px;border-radius:12px;white-space:pre-wrap;word-break:break-word}.bubble.user{align-self:flex-end;background:var(--primary);color:#fff}.bubble.bot{align-self:flex-start;background:var(--surface)}.composer textarea{flex:1;min-height:44px;resize:vertical}.composer{align-items:center}button.mic{min-width:44px;padding:0 10px}button.mic.recording{background:var(--danger);border-color:var(--danger);animation:micpulse 1.2s ease-in-out infinite}.wave{width:168px;height:44px;color:var(--danger);flex:0 0 auto}.wavebusy{white-space:nowrap}@keyframes micpulse{50%{opacity:.7}}@media (max-width:480px){.wave{width:96px}}.convlist{list-style:none;margin:8px 0;padding:0}.convrow,.foldrow{display:flex;align-items:center;justify-content:space-between;gap:4px;padding:2px 0}.convrow.active{background:var(--surface);border-radius:6px}.convtools{display:none;gap:2px;align-items:center}.convrow:hover .convtools,.convrow:focus-within .convtools{display:flex}.convtools select{max-width:5.5rem;min-height:28px;padding:0 2px;font-size:12px}button.linklike{background:none;border:none;color:var(--text);padding:2px 4px;min-height:28px;text-align:left;cursor:pointer}.sidetoggle{display:none}@media (max-width:720px){.side{position:fixed;left:0;top:0;bottom:0;z-index:5;background:var(--bg);padding:12px;transform:translate(-105%);transition:transform .15s}.side.open{transform:none}.sidetoggle{display:inline-block}.chat{height:calc(100dvh - 120px)}}.skillgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:10px;margin:12px 0}.skillbtn{display:flex;flex-direction:column;gap:4px;text-align:left;padding:12px;border-radius:var(--radius);border:1px solid var(--muted);background:var(--surface);color:var(--text);min-height:5rem;cursor:pointer}.skillbtn:hover{border-color:var(--primary)}.meter{height:10px;border-radius:6px;background:var(--surface);overflow:hidden;margin:4px 0;max-width:24rem}.meter>div{height:100%;background:var(--ok)}.convrow[draggable=true],.foldrow[draggable=true]{cursor:grab}.convrow.dragging,.foldrow.dragging{opacity:.45}.foldrow.dropover,.convlist.dropover{outline:2px dashed var(--accent,#6b7cff);outline-offset:-2px;border-radius:6px;background:var(--surface)}button.dotsbtn{flex:0 0 auto;min-width:32px;font-size:18px;line-height:1;opacity:.6}.convrow:hover .dotsbtn,.foldrow:hover .dotsbtn,.dotsbtn:focus-visible{opacity:1}.menu{position:fixed;z-index:20;width:15.5rem;max-height:calc(100dvh - 16px);overflow:auto;background:var(--bg);border:1px solid var(--surface);border-radius:8px;box-shadow:0 6px 24px #00000040;padding:6px;display:flex;flex-direction:column;gap:6px}.menu label{font-size:12px}.menu select,.menu button.linklike{width:100%;min-height:34px}.menu button.danger{color:#d64545}