:root{--sidebar-width:300px;--composer-max:60rem;--text-xs:.6875rem;--text-sm:.8125rem;--text-base:.9375rem;--text-lg:1.125rem;--text-xl:1.375rem;--text-2xl:1.75rem;--sans:"Helvetica Neue",Helvetica,Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--radius-sm:2px;--radius:4px;--radius-lg:8px;--shadow-md:0 4px 12px rgba(36,38,42,.08),0 1px 4px rgba(36,38,42,.04);--bg:#fcfcfc;--bg-subtle:#f4f4f5;--bg-inset:#ebebed;--fg:#24262a;--fg-muted:#52555c;--fg-subtle:#83868d;--border:#dcdde0;--border-strong:#bcbec3;--control-border:#83868d;--accent:#24262a;--accent-fg:#fcfcfc;--accent-subtle:#e4e5e7;--flag:#8b6914;--flag-subtle:#f7f1e4;--ok:#2d6a4f;--err:#7a2020}@media (prefers-color-scheme:dark){:root{--bg:#16181b;--bg-subtle:#1d2024;--bg-inset:#24272c;--fg:#e9eaec;--fg-muted:#a6a9af;--fg-subtle:#7e8188;--border:#2a2d32;--border-strong:#3c4046;--control-border:#72767d;--accent:#c9cbd0;--accent-fg:#16181b;--accent-subtle:#23262b;--flag:#e0b36a;--flag-subtle:#241f14;--ok:#7fc9a3;--err:#e88c8c}}:root[data-theme=dark]{--bg:#16181b;--bg-subtle:#1d2024;--bg-inset:#24272c;--fg:#e9eaec;--fg-muted:#a6a9af;--fg-subtle:#7e8188;--border:#2a2d32;--border-strong:#3c4046;--control-border:#72767d;--accent:#c9cbd0;--accent-fg:#16181b;--accent-subtle:#23262b;--flag:#e0b36a;--flag-subtle:#241f14;--ok:#7fc9a3;--err:#e88c8c}:root[data-theme=light]{--bg:#fcfcfc;--bg-subtle:#f4f4f5;--bg-inset:#ebebed;--fg:#24262a;--fg-muted:#52555c;--fg-subtle:#83868d;--border:#dcdde0;--border-strong:#bcbec3;--control-border:#83868d;--accent:#24262a;--accent-fg:#fcfcfc;--accent-subtle:#e4e5e7;--flag:#8b6914;--flag-subtle:#f7f1e4;--ok:#2d6a4f;--err:#7a2020}*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:var(--text-base);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:inherit}button,input,textarea,select{font:inherit;color:inherit}:focus-visible{outline:2px 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.5rem;text-decoration:none;display:block}.nav-item:hover{background:var(--accent-subtle)}.nav-item[aria-current=true],.nav-item.active{background:var(--accent-subtle);font-weight:600}.nav-item .sub{color:var(--fg-subtle);font-size:var(--text-xs);font-weight:400;display:block}.nav-item:disabled,.nav-item[aria-disabled=true]{color:var(--fg-subtle);cursor:not-allowed}.nav-item:disabled:hover,.nav-item[aria-disabled=true]:hover{background:0 0}.channel-group{margin-bottom:.5rem}.channel-label{font-family:var(--mono);font-size:var(--text-sm);justify-content:space-between;align-items:center;gap:.5rem;padding:.3rem .5rem;display:flex}.conversation-list{border-left:1px solid var(--border);margin:0 0 0 .75rem;padding:0 0 0 .5rem;list-style:none}.main{flex-direction:column;min-width:0;min-height:100vh;display:flex}.main-head{border-bottom:1px solid var(--border);background:var(--bg);z-index:2;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:.85rem 1.25rem;display:flex;position:-webkit-sticky;position:sticky;top:0}.main-head h1{font-size:var(--text-lg);margin:0;font-weight:600}.main-head .meta{color:var(--fg-subtle);font-size:var(--text-xs)}.main-body{flex:1;min-height:0;padding:1.25rem}.tabs{gap:.25rem;display:flex}.tab{border-radius:var(--radius);font-size:var(--text-sm);cursor:pointer;background:0 0;border:1px solid transparent;padding:.3rem .7rem;text-decoration:none}.tab[aria-current=true]{border-color:var(--border);background:var(--bg-subtle);font-weight:600}.chat{max-width:var(--composer-max);flex-direction:column;gap:1rem;width:100%;margin:0 auto;display:flex}.turn{flex-direction:column;gap:.3rem;display:flex}.turn .who{color:var(--fg-subtle);font-size:var(--text-xs);letter-spacing:.06em;text-transform:uppercase;font-weight:600}.turn.user .bubble{background:var(--accent-subtle)}.bubble{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-subtle);white-space:pre-wrap;overflow-wrap:anywhere;padding:.7rem .9rem}.tool-note{border-left:2px solid var(--border-strong);color:var(--fg-muted);font-family:var(--mono);font-size:var(--text-xs);align-items:baseline;gap:.5rem;padding:.3rem .6rem;display:flex}.hitl{border-left:3px solid var(--flag);border-radius:0 var(--radius)var(--radius)0;background:var(--flag-subtle);font-size:var(--text-sm);flex-direction:column;gap:.6rem;padding:.8rem .9rem;display:flex}.hitl .actions{gap:.5rem;display:flex}.composer{max-width:var(--composer-max);background:linear-gradient(to top,var(--bg)70%,transparent);width:100%;margin:0 auto;padding:.75rem 0 1rem;position:-webkit-sticky;position:sticky;bottom:0}.composer form{align-items:flex-end;gap:.5rem;display:flex}.composer textarea{border:1px solid var(--control-border);border-radius:var(--radius);background:var(--bg);resize:vertical;flex:1;min-height:2.6rem;max-height:12rem;padding:.6rem .75rem}.btn{border:1px solid var(--control-border);border-radius:var(--radius);background:var(--bg);font-size:var(--text-sm);cursor:pointer;white-space:nowrap;padding:.55rem .95rem;font-weight:500}.btn:hover:not(:disabled){background:var(--bg-subtle)}.btn.primary{border-color:var(--accent);background:var(--accent);color:var(--accent-fg)}.btn:disabled{opacity:.55;cursor:not-allowed}.panel{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-subtle);margin-bottom:1.25rem;overflow:hidden}.panel>h2{border-bottom:1px solid var(--border);font-size:var(--text-sm);letter-spacing:.04em;text-transform:uppercase;color:var(--fg-muted);margin:0;padding:.65rem .9rem;font-weight:600}.panel .panel-body{padding:.9rem}.panel pre{white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.scroll-x{overflow-x:auto}table.data{border-collapse:collapse;width:100%;font-size:var(--text-sm)}table.data th,table.data td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:.45rem .6rem}table.data th{color:var(--fg-muted);font-size:var(--text-xs);letter-spacing:.05em;text-transform:uppercase;white-space:nowrap;font-weight:600}table.data td.num{font-family:var(--mono);text-align:right}.chip{border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-family:var(--mono);font-size:var(--text-xs);padding:.1rem .4rem;display:inline-block}.notice{border-left:3px solid var(--border-strong);border-radius:0 var(--radius)var(--radius)0;background:var(--bg-inset);color:var(--fg-muted);font-size:var(--text-sm);padding:.7rem .9rem}.notice.warn{border-left-color:var(--flag);background:var(--flag-subtle);color:var(--fg)}.notice.error{border-left-color:var(--err);color:var(--fg)}.empty{color:var(--fg-subtle);font-size:var(--text-sm);text-align:center;padding:2rem 1rem}@media (max-width:880px){.shell{grid-template-columns:minmax(0,1fr)}.sidebar{border-right:0;border-bottom:1px solid var(--border);max-height:none;position:static}}