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auto;align-items:center;gap:8px;padding:7px;display:grid}.selection-row.checked{background:#f5f9ff;border-color:#a8c7fa}.selection-row.disabled,.selection-row:disabled{opacity:.52;cursor:not-allowed}.selection-check{width:18px;height:18px;color:var(--surface);background:var(--surface);border:1px solid #aeb7c5;border-radius:5px;justify-content:center;align-items:center;display:inline-flex}.selection-row.checked .selection-check{border-color:var(--blue);background:var(--blue)}.selection-check .line-icon{stroke-width:2.4px;width:13px;height:13px}.selection-row span{gap:2px;min-width:0;display:grid}.selection-row strong,.selection-row small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.selection-row strong{color:var(--ink);font-size:var(--text-sm)}.selection-row small{color:var(--muted);font-size:var(--text-xs)}.status{min-height:22px;color:var(--blue);background:var(--blue-soft);font-size:var(--text-xs);font-style:normal;font-weight:var(--font-medium);border-radius:999px;justify-content:center;align-items:center;padding:0 8px;display:inline-flex}.status.pending,.status.authorization_required{color:var(--amber);background:var(--amber-soft)}.status.error{color:var(--red);background:var(--red-soft)}.empty-hint{color:var(--muted);margin:0;padding:10px;font-size:12px}.mode-pill{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--muted);font-size:12px;overflow:hidden}.agent-mention-panel{border:1px solid var(--line);border-radius:var(--radius);min-width:0;max-height:min(460px,44vh);box-shadow:var(--shadow);background:#fffffff0;grid-template-rows:auto auto minmax(0,1fr);gap:8px;padding:9px;display:grid}.agent-mention-head{justify-content:space-between;align-items:center;gap:10px;padding:0 2px;display:flex}.agent-mention-head strong{color:var(--ink);font-size:13px;font-weight:var(--font-semibold)}.agent-mention-head span{min-width:0;color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.agent-mention-search{border-radius:var(--radius);background:#f8fbff;border:1px solid #d5dfec;grid-template-columns:28px minmax(0,1fr);align-items:center;gap:8px;min-width:0;min-height:38px;padding:0 10px;display:grid}.agent-mention-search span{width:24px;height:24px;color:var(--blue);background:var(--blue-soft);font-size:14px;font-weight:var(--font-semibold);border-radius:999px;justify-content:center;align-items:center;display:inline-flex}.agent-mention-search input{width:100%;min-width:0;height:34px;color:var(--ink);font-size:13px;font-weight:var(--font-medium);appearance:none;background:0 0;border:0;outline:0;padding:0}.agent-mention-search 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small{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.composer-state strong{color:var(--ink);font-size:13px;font-weight:var(--font-semibold)}.composer-state small{color:var(--muted);font-size:12px}.composer-state button{border-radius:var(--radius);min-height:30px;color:var(--blue);background:var(--blue-soft);font-size:12px;font-weight:var(--font-semibold);border:1px solid #c8daf8;padding:0 10px}.composer-state button:hover{background:#edf5ff;border-color:#9ec1ff}@keyframes composer-pulse{0%,to{opacity:.66;transform:scale(.82)}50%{opacity:1;transform:scale(1)}}.composer-box{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);grid-template-columns:minmax(0,1fr) 42px;align-items:end;gap:8px;min-width:0;min-height:60px;padding:9px;display:grid;box-shadow:0 8px 28px #18202c17}.composer-box.disabled{background:#fbfcfe;box-shadow:0 8px 24px #18202c0d}.composer-box:focus-within{border-color:#a8c7fa;box-shadow:0 0 0 3px #1a73e81a,0 8px 28px #18202c17}.composer-box textarea{resize:none;width:100%;height:42px;min-height:38px;max-height:180px;color:var(--ink);font-size:var(--text-message);background:0 0;border:0;outline:0;padding:8px 6px;line-height:1.55}.composer-box textarea::placeholder{color:#9aa3b1}.composer-box textarea:disabled{color:var(--muted);cursor:not-allowed;-webkit-text-fill-color:var(--muted)}.composer-box button{border-radius:var(--radius);width:38px;height:38px;color:var(--surface);background:var(--blue);border:1px solid #0000;justify-content:center;align-items:center;display:inline-flex}.composer-box button:hover{background:var(--blue-strong)}.composer-box button:disabled{opacity:.4;cursor:not-allowed}@media (max-width:1180px){.chat-app-shell{grid-template-columns:292px minmax(0,1fr)}.agent-runtime-panel{display:none}}@media (max-width:980px){.chat-app-shell{grid-template-rows:68px minmax(0,1fr);grid-template-columns:1fr}.conversation-sidebar{border-right:0;border-bottom:1px solid var(--line);grid-template-rows:1fr;grid-template-columns:minmax(0,1fr) auto;align-items:center;height:68px}.sidebar-top{justify-content:space-between;align-items:center;display:flex}.new-chat-button{min-height:36px}.conversation-list{display:none}.sidebar-account{border-top:0;padding-top:0;display:block}.sidebar-account>.account-avatar,.sidebar-account>div:not(.account-actions){display:none}.account-actions{gap:8px;display:flex}.account-actions a,.account-actions button{min-width:62px}.conversation-shell{height:calc(100vh - 68px)}}@media (max-width:720px){.signin-shell{grid-template-columns:1fr}.signin-copy,.signin-panel{padding:22px}.signin-copy h1{font-size:34px}.signin-copy p{font-size:var(--text-base)}.signin-proof,.starter-grid{grid-template-columns:1fr}.conversation-header{gap:8px;padding:0 14px}.conversation-sidebar{gap:8px;padding:8px 10px}.sidebar-top{gap:8px;min-width:0}.new-chat-button{justify-content:center;width:44px;min-height:44px;padding:0}.new-chat-button span{display:none}.account-actions a,.account-actions button{min-width:58px;padding:0 10px}.header-menu.agent .header-menu-trigger{max-width:38vw;font-size:15px}.header-controls{gap:6px}.header-menu.chip .header-menu-trigger{max-width:96px}.model-count-pill{display:none}.conversation-feed{padding:24px 14px 18px}.message.user{width:min(92%,720px)}.source-list{grid-template-columns:1fr}.source-panel-head,.agent-mention-head{flex-direction:column;align-items:flex-start}.agent-mention-panel{max-height:min(390px,48vh)}.agent-mention-list{max-height:min(260px,32vh)}.agent-mention-list button{grid-template-columns:28px minmax(0,1fr)}.agent-mention-list em{display:none}.composer-state{grid-template-columns:16px minmax(0,1fr)}.composer-state button{grid-column:2;justify-self:start}.composer-shell{width:calc(100% - 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