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  <!-- Title -->
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  <!-- Inner coherence envelope -->
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  <text x="600" y="220" text-anchor="middle" class="h2">Coherence envelope</text>
 
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  <text x="240" y="305" class="txt">Drift</text>
  <text x="320" y="305" class="txt muted">(bounded exploration)</text>
 
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  <text x="545" y="420" class="txt">Structural re-alignment</text>
 
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  <text x="240" y="495" class="label muted">Declared assumptions constrain interpretation, not creativity.</text>
 
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  <text x="600" y="628" text-anchor="middle" class="txt">Regime exit → classified failure (not error)</text>
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