.pi-agent-document-chat{--pi-agent-chat-bg:#ffffff;--pi-agent-chat-fg:#0f172a;--pi-agent-chat-muted:#64748b;--pi-agent-chat-border:#e2e8f0;--pi-agent-chat-surface:#f8fafc;--pi-agent-chat-accent:#2563eb;--pi-agent-chat-radius:20px;--pi-agent-chat-shadow:0 20px 60px rgba(15,23,42,0.08);--pi-agent-chat-height:100%;display:flex;flex-direction:column;height:var(--pi-agent-chat-height);min-height:0;color:var(--pi-agent-chat-fg);background:var(--pi-agent-chat-bg);border:1px solid var(--pi-agent-chat-border);border-radius:var(--pi-agent-chat-radius);box-shadow:var(--pi-agent-chat-shadow);overflow:hidden}.pi-agent-document-chat.pi-agent-chat--dark{--pi-agent-chat-bg:#020617;--pi-agent-chat-fg:#e2e8f0;--pi-agent-chat-muted:#94a3b8;--pi-agent-chat-border:#1e293b;--pi-agent-chat-surface:#0f172a;--pi-agent-chat-accent:#60a5fa;--pi-agent-chat-shadow:0 20px 60px rgba(2,6,23,0.35)}@media (prefers-color-scheme:dark){.pi-agent-document-chat.pi-agent-chat--system{--pi-agent-chat-bg:#020617;--pi-agent-chat-fg:#e2e8f0;--pi-agent-chat-muted:#94a3b8;--pi-agent-chat-border:#1e293b;--pi-agent-chat-surface:#0f172a;--pi-agent-chat-accent:#60a5fa;--pi-agent-chat-shadow:0 20px 60px rgba(2,6,23,0.35)}}.pi-agent-document-chat__header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:18px 20px;border-bottom:1px solid var(--pi-agent-chat-border);background:color-mix(in srgb,var(--pi-agent-chat-surface) 72%,var(--pi-agent-chat-bg))}.pi-agent-document-chat .pi-agent-chat__title,.pi-agent-document-chat__title{margin:0;color:var(--pi-agent-chat-fg);font-size:16px;font-weight:750;letter-spacing:-.01em}.pi-agent-document-chat .pi-agent-chat__subtitle,.pi-agent-document-chat__subtitle{margin:4px 0 0;color:var(--pi-agent-chat-muted);font-size:13px;line-height:1.4}.pi-agent-document-chat 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rgba(15,23,42,.05);cursor:pointer}.pi-agent-document-chat__suggestions button:hover{border-color:color-mix(in srgb,var(--pi-agent-chat-accent) 45%,var(--pi-agent-chat-border));color:var(--pi-agent-chat-accent)}.pi-agent-document-chat__message{display:flex;align-items:flex-start;gap:10px;max-width:92%}.pi-agent-document-chat__message--user{align-self:flex-end;flex-direction:row-reverse}.pi-agent-document-chat__message--assistant{align-self:flex-start}.pi-agent-document-chat__message[data-activity-message=true]{width:92%;max-width:92%}.pi-agent-document-chat__message[data-activity-message=true] .pi-agent-chat__activity-indicator{flex:1 1 auto;min-width:0}.pi-agent-document-chat__avatar{flex:0 0 auto;display:grid;place-items:center;width:28px;height:28px;border-radius:999px;background:var(--pi-agent-chat-surface);color:var(--pi-agent-chat-muted);font-size:11px;font-weight:800}.pi-agent-document-chat__message--assistant .pi-agent-document-chat__avatar{background:color-mix(in 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span{display:-webkit-box;min-width:0;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow-wrap:anywhere;text-overflow:ellipsis;white-space:normal}.pi-agent-document-chat__context-quote-icon{width:.875rem;height:.875rem;flex:0 0 auto;margin-top:.1rem;opacity:.72}.pi-agent-document-chat__composer{border-top:1px solid var(--pi-agent-chat-border);padding:14px;background:color-mix(in srgb,var(--pi-agent-chat-surface) 70%,var(--pi-agent-chat-bg))}.pi-agent-document-chat__composer-input{position:relative;border:1px solid var(--pi-agent-chat-border);border-radius:20px;padding:10px 52px 10px 12px;background:var(--pi-agent-chat-bg);box-shadow:0 10px 28px rgba(15,23,42,.06)}.pi-agent-document-chat__composer-input:focus-within{border-color:var(--pi-agent-chat-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--pi-agent-chat-accent) 15%,transparent),0 10px 28px rgba(15,23,42,.06)}.pi-agent-document-chat__context-chips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:6px}.pi-agent-document-chat__context-chip{display:inline-flex;max-width:220px;justify-content:space-between;align-items:center;gap:8px;padding:7px 10px;border:1px solid var(--pi-agent-chat-border);border-radius:999px;background:var(--pi-agent-chat-surface);color:var(--pi-agent-chat-muted);font-size:13px;font-weight:800}.pi-agent-document-chat__context-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pi-agent-document-chat__context-chip button{flex:0 0 auto;width:24px;height:24px;padding:0;border:0;border-radius:999px;background:color-mix(in srgb,var(--pi-agent-chat-muted) 18%,transparent);color:var(--pi-agent-chat-fg);font-weight:800;cursor:pointer}.pi-agent-document-chat textarea{width:100%;min-height:72px;resize:none;border:0;border-radius:10px;padding:2px 0;font:inherit;line-height:1.45;color:var(--pi-agent-chat-fg);background:transparent;outline:none}.pi-agent-document-chat textarea::-moz-placeholder{color:var(--pi-agent-chat-muted)}.pi-agent-document-chat textarea::placeholder{color:var(--pi-agent-chat-muted)}.pi-agent-document-chat textarea:focus{outline:none}.pi-agent-document-chat__composer-actions{position:absolute;right:10px;bottom:10px}.pi-agent-document-chat__composer-actions button{display:grid;place-items:center;width:34px;height:34px;border:0;border-radius:999px;padding:0;background:var(--pi-agent-chat-accent);color:white;font:inherit;font-size:18px;font-weight:900;line-height:1;cursor:pointer}.pi-agent-document-chat__composer-actions button:disabled{opacity:.45;cursor:not-allowed}.pi-agent-chat__activity-indicator{display:block;width:100%;border:1px solid color-mix(in srgb,var(--pi-agent-chat-border) 72%,transparent);border-radius:18px;background:color-mix(in srgb,var(--pi-agent-chat-surface) 82%,var(--pi-agent-chat-bg));color:var(--pi-agent-chat-muted);font-size:.875rem;line-height:1.25;box-shadow:0 8px 24px rgba(15,23,42,.05);overflow:hidden;-webkit-user-select:none;-moz-user-select:none;user-select:none}.pi-agent-chat__activity-indicator[data-status=complete]{background:color-mix(in srgb,var(--pi-agent-chat-surface) 55%,var(--pi-agent-chat-bg));box-shadow:none;opacity:.72}.pi-agent-chat__activity-summary{display:grid;grid-template-columns:auto minmax(0,auto) minmax(0,1fr) auto;align-items:center;gap:.5rem;padding:.625rem .75rem;cursor:pointer;list-style:none}.pi-agent-chat__activity-summary::-webkit-details-marker{display:none}.pi-agent-chat__activity-indicator[data-status=complete] .pi-agent-chat__activity-summary{grid-template-columns:minmax(0,1fr) auto}.pi-agent-chat__activity-chevron{justify-self:end;color:var(--pi-agent-chat-muted);font-size:1rem;transform:rotate(90deg);transition:transform .16s ease}.pi-agent-chat__activity-indicator[open] .pi-agent-chat__activity-chevron{transform:rotate(-90deg)}.pi-agent-chat__activity-dot{width:.5rem;height:.5rem;flex:0 0 auto;border-radius:999px;background:var(--pi-agent-chat-accent);box-shadow:0 0 0 0 color-mix(in srgb,var(--pi-agent-chat-accent) 35%,transparent);animation:pi-agent-activity-pulse 1.8s ease-in-out infinite}.pi-agent-chat__activity-label{min-width:0;overflow:hidden;color:var(--pi-agent-chat-fg);font-weight:700;text-overflow:ellipsis;white-space:nowrap}.pi-agent-chat__activity-label--running{background:linear-gradient(110deg,var(--pi-agent-chat-fg) 0,var(--pi-agent-chat-muted) 28%,var(--pi-agent-chat-accent) 50%,var(--pi-agent-chat-muted) 72%,var(--pi-agent-chat-fg) 100%);background-size:240% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:pi-agent-activity-gleam 2.2s linear 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minmax(0,1fr);gap:.35rem}.pi-agent-chat__activity-step-bullet{width:.375rem;height:.375rem;margin-top:.4375rem;border-radius:999px;background:var(--pi-agent-chat-muted);opacity:.65}.pi-agent-chat__activity-step-bullet[data-current=true]{background:var(--pi-agent-chat-accent);opacity:1}.pi-agent-chat__activity-step-body{min-width:0}.pi-agent-chat__activity-step-line{display:flex;min-width:0;flex-wrap:wrap;align-items:center;gap:.375rem}.pi-agent-chat__activity-step-line strong{color:var(--pi-agent-chat-fg);font-size:.8125rem}.pi-agent-chat__activity-current,.pi-agent-chat__activity-step-line em,.pi-agent-chat__activity-step-line span{color:var(--pi-agent-chat-muted);font-size:.75rem;font-style:normal}.pi-agent-chat__activity-current{display:inline-flex;margin-top:.25rem;color:var(--pi-agent-chat-accent);font-weight:700}.pi-agent-chat__activity-raw{margin:.375rem 0 0;padding:.5rem .625rem;overflow-x:auto;border:1px solid color-mix(in srgb,var(--pi-agent-chat-border) 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