:root{--sidebar-width:300px;--composer-max:60rem;--text-xs:0.6875rem;--text-sm:0.8125rem;--text-base:0.9375rem;--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(36,38,42,0.08),0 1px 4px rgba(36,38,42,0.04);--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}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:var(--text-base);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}code,pre{font-family:var(--mono);font-size:.9em}.shell{display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);min-height:100vh}.sidebar{display:flex;flex-direction:column;gap:1.25rem;padding:1rem .75rem 2rem;border-right:1px solid var(--border);background:var(--bg-subtle);overflow-y:auto;max-height:100vh;position:-webkit-sticky;position:sticky;top:0}.brand{display:flex;align-items:baseline;gap:.4rem;padding:.25rem .5rem 0}.brand .mark{font-size:1rem;font-weight:700;letter-spacing:.08em}.brand .name{color:var(--fg-muted);font-size:1rem}.group-heading{padding:0 .5rem;margin:0 0 .35rem;color:var(--fg-subtle);font-size:var(--text-xs);font-weight:600;letter-spacing:.09em;text-transform:uppercase}.nav-item{display:block;width:100%;padding:.4rem .5rem;border:0;border-radius:var(--radius);background:none;color:inherit;font-size:var(--text-sm);text-align:left;text-decoration:none;cursor:pointer}.nav-item:hover{background:var(--accent-subtle)}.nav-item.active,.nav-item[aria-current=true]{background:var(--accent-subtle);font-weight:600}.nav-item .sub{display:block;color:var(--fg-subtle);font-size:var(--text-xs);font-weight:400}.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:none}.channel-group{margin-bottom:.5rem}.channel-label{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.3rem .5rem;font-family:var(--mono);font-size:var(--text-sm)}.conversation-list{list-style:none;padding:0 0 0 .5rem;border-left:1px solid var(--border);margin:0 0 0 .75rem}.main{display:flex;flex-direction:column;min-width:0;min-height:100vh}.main-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:.85rem 1.25rem;border-bottom:1px solid var(--border);background:var(--bg);position:-webkit-sticky;position:sticky;top:0;z-index:2}.main-head h1{margin:0;font-size:var(--text-lg);font-weight:600}.main-head .meta{color:var(--fg-subtle);font-size:var(--text-xs)}.main-body{flex:1 1;min-height:0;padding:1.25rem}.tabs{display:flex;gap:.25rem}.tab{padding:.3rem .7rem;border:1px solid transparent;border-radius:var(--radius);background:none;font-size:var(--text-sm);text-decoration:none;cursor:pointer}.tab[aria-current=true]{border-color:var(--border);background:var(--bg-subtle);font-weight:600}.chat{gap:1rem;max-width:var(--composer-max);margin:0 auto;width:100%}.chat,.turn{display:flex;flex-direction:column}.turn{gap:.3rem}.turn .who{color:var(--fg-subtle);font-size:var(--text-xs);font-weight:600;letter-spacing:.06em;text-transform:uppercase}.turn.user .bubble{background:var(--accent-subtle)}.bubble{padding:.7rem .9rem;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-subtle);white-space:pre-wrap;overflow-wrap:anywhere}.tool-note{display:flex;align-items:baseline;gap:.5rem;padding:.3rem .6rem;border-left:2px solid var(--border-strong);color:var(--fg-muted);font-family:var(--mono);font-size:var(--text-xs)}.hitl{display:flex;flex-direction:column;gap:.6rem;padding:.8rem .9rem;border-left:3px solid var(--flag);border-radius:0 var(--radius) var(--radius) 0;background:var(--flag-subtle);font-size:var(--text-sm)}.hitl .actions{display:flex;gap:.5rem}.composer{position:-webkit-sticky;position:sticky;bottom:0;max-width:var(--composer-max);margin:0 auto;width:100%;padding:.75rem 0 1rem;background:linear-gradient(to top,var(--bg) 70%,transparent)}.composer form{display:flex;gap:.5rem;align-items:flex-end}.composer textarea{flex:1 1;min-height:2.6rem;max-height:12rem;padding:.6rem .75rem;resize:vertical}.btn,.composer textarea{border:1px solid var(--control-border);border-radius:var(--radius);background:var(--bg)}.btn{padding:.55rem .95rem;font-size:var(--text-sm);font-weight:500;cursor:pointer;white-space:nowrap}.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{margin-bottom:1.25rem;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-subtle);overflow:hidden}.panel>h2{margin:0;padding:.65rem .9rem;border-bottom:1px solid var(--border);font-size:var(--text-sm);font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--fg-muted)}.panel .panel-body{padding:.9rem}.panel pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.scroll-x{overflow-x:auto}table.data{width:100%;border-collapse:collapse;font-size:var(--text-sm)}table.data td,table.data th{padding:.45rem .6rem;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}table.data th{color:var(--fg-muted);font-size:var(--text-xs);font-weight:600;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}table.data td.num{font-family:var(--mono);text-align:right}.chip{display:inline-block;padding:.1rem .4rem;border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-family:var(--mono);font-size:var(--text-xs)}.notice{padding:.7rem .9rem;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)}.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{padding:2rem 1rem;color:var(--fg-subtle);font-size:var(--text-sm);text-align:center}@media (max-width:880px){.shell{grid-template-columns:minmax(0,1fr)}.sidebar{position:static;max-height:none;border-right:0;border-bottom:1px solid var(--border)}}