<mxfile host="app.diagrams.net" agent="architecture-deliverables" version="24.0.0">
  <diagram name="Deployment and Multi-Region Topology" id="21-deployment-architecture">
    <mxGraphModel dx="1400" dy="900" background="#ffffff" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="1700" pageHeight="1110" math="0" shadow="0">
      <root>
        <mxCell id="0" />
        <mxCell id="1" parent="0" />
        <mxCell id="_box1" value="Global edge — Anycast" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="40" y="80" width="1610" height="190" as="geometry" />
        </mxCell>
        <mxCell id="_box2" value="Points of presence, 200+ sites" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="60" y="110" width="770" height="140" as="geometry" />
        </mxCell>
        <mxCell id="n.pop" value="&lt;b&gt;Edge Terminator&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;TLS + Noise&lt;/font&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="160" y="140" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.scrub" value="&lt;b&gt;DDoS Scrubbing&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#e1d5e7;strokeColor=#9673a6;fontColor=#3a2b44;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="360" y="140" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.cdnpop" value="&lt;b&gt;CDN Cache&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;Media blobs&lt;/font&gt;" style="shape=cylinder3;boundedLbl=1;backgroundOutline=1;size=11;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontColor=#1e3a1e;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="570" y="140" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="_box3" value="Global routing" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="870" y="110" width="770" height="140" as="geometry" />
        </mxCell>
        <mxCell id="n.bgp" value="&lt;b&gt;BGP Anycast + GeoDNS&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;fontColor=#4a3200;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1060" y="140" width="170" height="90" as="geometry" />
        </mxCell>
        <mxCell id="n.steer" value="&lt;b&gt;Health-based Steering&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;Drains a bad region&lt;/font&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1270" y="140" width="170" height="90" as="geometry" />
        </mxCell>
        <mxCell id="_box4" value="Region A — primary for pinned accounts" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="40" y="290" width="1610" height="270" as="geometry" />
        </mxCell>
        <mxCell id="_box5" value="AZ-1" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="60" y="320" width="500" height="220" as="geometry" />
        </mxCell>
        <mxCell id="n.a1gw" value="&lt;b&gt;Gateway Pool&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;1M sockets&lt;/font&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="130" y="350" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.a1svc" value="&lt;b&gt;Core Services&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;Kubernetes&lt;/font&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="330" y="350" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="_box6" value="AZ-2" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="600" y="320" width="500" height="220" as="geometry" />
        </mxCell>
        <mxCell id="n.a2gw" value="&lt;b&gt;Gateway Pool&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;1M sockets&lt;/font&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="660" y="350" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.a2svc" value="&lt;b&gt;Core Services&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;Kubernetes&lt;/font&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="870" y="350" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="_box7" value="AZ-3 — stateful" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="1130" y="320" width="500" height="220" as="geometry" />
        </mxCell>
        <mxCell id="n.a3ms" value="&lt;b&gt;Message Store&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;RF 3, quorum write&lt;/font&gt;" style="shape=cylinder3;boundedLbl=1;backgroundOutline=1;size=11;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontColor=#1e3a1e;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1200" y="350" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.a3q" value="&lt;b&gt;Delivery Queue&lt;/b&gt;" style="shape=process;size=0.08;whiteSpace=wrap;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;fontColor=#4a3200;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1400" y="350" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.a3db" value="&lt;b&gt;Account &amp; Group DB&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;Sharded, semi-sync&lt;/font&gt;" style="shape=cylinder3;boundedLbl=1;backgroundOutline=1;size=11;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontColor=#1e3a1e;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1300" y="450" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="_box8" value="Region B — active for its own pinned accounts" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="40" y="590" width="1610" height="270" as="geometry" />
        </mxCell>
        <mxCell id="_box9" value="AZ-1" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="60" y="620" width="500" height="220" as="geometry" />
        </mxCell>
        <mxCell id="n.b1gw" value="&lt;b&gt;Gateway Pool&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="130" y="650" width="170" height="50" as="geometry" />
        </mxCell>
        <mxCell id="n.b1svc" value="&lt;b&gt;Core Services&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="330" y="650" width="170" height="50" as="geometry" />
        </mxCell>
        <mxCell id="_box10" value="AZ-2" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="600" y="620" width="500" height="220" as="geometry" />
        </mxCell>
        <mxCell id="n.b2gw" value="&lt;b&gt;Gateway Pool&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="660" y="650" width="170" height="50" as="geometry" />
        </mxCell>
        <mxCell id="n.b2svc" value="&lt;b&gt;Core Services&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontColor=#1a2b45;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="870" y="650" width="170" height="50" as="geometry" />
        </mxCell>
        <mxCell id="_box11" value="AZ-3 — stateful" style="rounded=1;arcSize=3;whiteSpace=wrap;html=1;fillColor=none;strokeColor=#6c8ebf;dashed=1;dashPattern=8 8;verticalAlign=top;align=left;spacingLeft=12;spacingTop=6;fontSize=11;fontStyle=2;fontColor=#5b7fa6;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="1130" y="620" width="500" height="220" as="geometry" />
        </mxCell>
        <mxCell id="n.b3ms" value="&lt;b&gt;Message Store&lt;/b&gt;&lt;br&gt;&lt;font style=&quot;font-size:10px;color:#5b6b7d&quot;&gt;RF 3, quorum write&lt;/font&gt;" style="shape=cylinder3;boundedLbl=1;backgroundOutline=1;size=11;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontColor=#1e3a1e;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1200" y="650" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.b3q" value="&lt;b&gt;Delivery Queue&lt;/b&gt;" style="shape=process;size=0.08;whiteSpace=wrap;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;fontColor=#4a3200;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1400" y="650" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.b3db" value="&lt;b&gt;Account &amp; Group DB&lt;/b&gt;" style="shape=cylinder3;boundedLbl=1;backgroundOutline=1;size=11;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontColor=#1e3a1e;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="1300" y="750" width="170" height="70" as="geometry" />
        </mxCell>
        <mxCell id="n.obj" value="&lt;b&gt;Multi-region Object Store&lt;/b&gt;" style="shape=cylinder3;boundedLbl=1;backgroundOutline=1;size=11;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontColor=#1e3a1e;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="650" y="890" width="200" height="50" as="geometry" />
        </mxCell>
        <mxCell id="n.turnf" value="&lt;b&gt;TURN Relay Fleet&lt;/b&gt;" style="rounded=1;arcSize=8;whiteSpace=wrap;html=1;fillColor=#f5f5f5;strokeColor=#8c8c8c;fontColor=#333333;fontSize=12;fontFamily=Segoe UI;verticalAlign=middle;align=center;" vertex="1" parent="1">
          <mxGeometry x="880" y="890" width="170" height="50" as="geometry" />
        </mxCell>
        <mxCell id="_e12" value="nearest healthy PoP" style="edgeStyle=orthogonalEdgeStyle;rounded=1;html=1;jettySize=auto;orthogonalLoop=1;endArrow=block;endFill=1;strokeColor=#5a6570;strokeWidth=1.4;fontSize=10;fontColor=#42536a;labelBackgroundColor=#ffffff;verticalAlign=bottom;fontFamily=Segoe UI;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1" source="n.bgp" target="n.a1gw">
          <mxGeometry relative="1" as="geometry">
            <Array as="points">
              <mxPoint x="1150" y="290" />
              <mxPoint x="220" y="290" />
            </Array>
          </mxGeometry>
        </mxCell>
        <mxCell id="_e13" value="registry replication" style="edgeStyle=orthogonalEdgeStyle;rounded=1;html=1;jettySize=auto;orthogonalLoop=1;dashed=1;endArrow=open;endFill=0;strokeColor=#d79b00;strokeWidth=1.4;fontSize=10;fontColor=#42536a;labelBackgroundColor=#ffffff;verticalAlign=bottom;fontFamily=Segoe UI;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1" source="n.a3db" target="n.b3db">
          <mxGeometry relative="1" as="geometry" />
        </mxCell>
        <mxCell id="_e14" value="cross-region route" style="edgeStyle=orthogonalEdgeStyle;rounded=1;html=1;jettySize=auto;orthogonalLoop=1;dashed=1;endArrow=open;endFill=0;strokeColor=#d79b00;strokeWidth=1.4;fontSize=10;fontColor=#42536a;labelBackgroundColor=#ffffff;verticalAlign=bottom;fontFamily=Segoe UI;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1" source="n.a3ms" target="n.b3ms">
          <mxGeometry relative="1" as="geometry" />
        </mxCell>
        <mxCell id="_e15" value="failover drain, 15 min" style="edgeStyle=orthogonalEdgeStyle;rounded=1;html=1;jettySize=auto;orthogonalLoop=1;dashed=1;endArrow=block;endFill=1;strokeColor=#b85450;strokeWidth=1.4;fontSize=10;fontColor=#42536a;labelBackgroundColor=#ffffff;verticalAlign=bottom;fontFamily=Segoe UI;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1" source="n.steer" target="n.b1gw">
          <mxGeometry relative="1" as="geometry">
            <Array as="points">
              <mxPoint x="1360" y="310" />
              <mxPoint x="850" y="310" />
              <mxPoint x="850" y="590" />
              <mxPoint x="220" y="590" />
            </Array>
          </mxGeometry>
        </mxCell>
        <mxCell id="title" value="Deployment and Multi-Region Topology" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=20;fontStyle=1;fontColor=#16202c;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="40" y="20" width="1610" height="30" as="geometry" />
        </mxCell>
        <mxCell id="rule" value="" style="line;strokeWidth=1;html=1;strokeColor=#c9d3de;" vertex="1" parent="1">
          <mxGeometry x="40" y="50" width="1610" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg16" value="" style="rounded=1;arcSize=30;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex="1" parent="1">
          <mxGeometry x="40" y="1020" width="20" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg17" value="Application we own" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="70" y="1010" width="110" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg18" value="" style="rounded=1;arcSize=30;html=1;fillColor=#e1d5e7;strokeColor=#9673a6;" vertex="1" parent="1">
          <mxGeometry x="200" y="1020" width="20" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg19" value="Security / platform" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="230" y="1010" width="110" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg20" value="" style="rounded=1;arcSize=30;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex="1" parent="1">
          <mxGeometry x="370" y="1020" width="20" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg21" value="Data store" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="400" y="1010" width="70" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg22" value="" style="rounded=1;arcSize=30;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
          <mxGeometry x="480" y="1020" width="20" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg23" value="Interface / broker" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="510" y="1010" width="110" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg24" value="" style="rounded=1;arcSize=30;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
          <mxGeometry x="640" y="1020" width="20" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg25" value="Queue / topic" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="670" y="1010" width="80" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg26" value="" style="rounded=1;arcSize=30;html=1;fillColor=#f5f5f5;strokeColor=#8c8c8c;" vertex="1" parent="1">
          <mxGeometry x="770" y="1020" width="20" height="10" as="geometry" />
        </mxCell>
        <mxCell id="_lg27" value="External / third party" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="800" y="1010" width="130" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg28" value="" style="html=1;endArrow=none;strokeColor=#5a6570;strokeWidth=1.4;" edge="1" parent="1">
          <mxGeometry relative="1" as="geometry">
            <mxPoint x="950" y="1020" as="sourcePoint" />
            <mxPoint x="980" y="1020" as="targetPoint" />
          </mxGeometry>
        </mxCell>
        <mxCell id="_lg29" value="synchronous" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="980" y="1010" width="70" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg30" value="" style="html=1;endArrow=none;dashed=1;strokeColor=#d79b00;strokeWidth=1.4;" edge="1" parent="1">
          <mxGeometry relative="1" as="geometry">
            <mxPoint x="1070" y="1020" as="sourcePoint" />
            <mxPoint x="1100" y="1020" as="targetPoint" />
          </mxGeometry>
        </mxCell>
        <mxCell id="_lg31" value="event / async" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="1100" y="1010" width="80" height="20" as="geometry" />
        </mxCell>
        <mxCell id="_lg32" value="" style="html=1;endArrow=none;dashed=1;strokeColor=#b85450;strokeWidth=1.4;" edge="1" parent="1">
          <mxGeometry relative="1" as="geometry">
            <mxPoint x="1210" y="1020" as="sourcePoint" />
            <mxPoint x="1230" y="1020" as="targetPoint" />
          </mxGeometry>
        </mxCell>
        <mxCell id="_lg33" value="failure / alternate" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#7b8794;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="1230" y="1010" width="110" height="20" as="geometry" />
        </mxCell>
        <mxCell id="note" value="Accounts are pinned to a home region. Both regions serve live traffic; neither is idle standby." style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=10;fontColor=#8a97a5;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="40" y="1040" width="1610" height="20" as="geometry" />
        </mxCell>
        <mxCell id="foot-rule" value="" style="line;strokeWidth=1;html=1;strokeColor=#e3e9ef;" vertex="1" parent="1">
          <mxGeometry x="40" y="1060" width="1610" height="10" as="geometry" />
        </mxCell>
        <mxCell id="foot" value="v 1.0   ·   owner Platform Architecture   ·   date 2026-08" style="text;html=1;strokeColor=none;fillColor=none;align=left;verticalAlign=middle;whiteSpace=wrap;fontSize=9;fontColor=#9aa7b4;fontFamily=Segoe UI;" vertex="1" parent="1">
          <mxGeometry x="40" y="1080" width="1610" height="10" as="geometry" />
        </mxCell>
      </root>
    </mxGraphModel>
  </diagram>
</mxfile>
