diff --git a/style.css b/style.css
index 2ad3a5f..5594850 100644
--- a/style.css
+++ b/style.css
@@ -977,3 +977,68 @@ canvas#nexus-canvas {
     font-size: var(--text-xl);
   }
 }
+
+/* === GOFAI HUD STYLING === */
+.gofai-hud {
+  position: fixed;
+  left: 20px;
+  top: 80px;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  pointer-events: none;
+  z-index: 100;
+}
+
+.hud-panel {
+  width: 280px;
+  background: rgba(5, 5, 16, 0.8);
+  border: 1px solid rgba(74, 240, 192, 0.2);
+  border-left: 3px solid #4af0c0;
+  padding: 8px;
+  font-family: 'JetBrains Mono', monospace;
+  font-size: 11px;
+  color: #e0f0ff;
+  pointer-events: auto;
+}
+
+.panel-header {
+  font-size: 10px;
+  font-weight: 700;
+  color: #4af0c0;
+  margin-bottom: 6px;
+  letter-spacing: 1px;
+  border-bottom: 1px solid rgba(74, 240, 192, 0.1);
+  padding-bottom: 2px;
+}
+
+.panel-content {
+  max-height: 120px;
+  overflow-y: auto;
+}
+
+.symbolic-log-entry { margin-bottom: 4px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 2px; }
+.symbolic-rule { color: #7b5cff; display: block; }
+.symbolic-outcome { color: #4af0c0; font-weight: 600; }
+
+.blackboard-entry { font-size: 10px; margin-bottom: 2px; }
+.bb-source { color: #ffd700; opacity: 0.7; }
+.bb-key { color: #7b5cff; }
+.bb-value { color: #fff; }
+
+.planner-step { color: #4af0c0; margin-bottom: 2px; }
+.step-num { opacity: 0.5; }
+
+.cbr-match { color: #ffd700; font-weight: 700; margin-bottom: 2px; }
+.cbr-action { color: #4af0c0; }
+
+.neuro-bridge-entry { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
+.neuro-icon { font-size: 14px; }
+.neuro-concept { color: #7b5cff; font-weight: 600; }
+
+.meta-stat { margin-bottom: 2px; display: flex; justify-content: space-between; }
+
+.calibrator-entry { font-size: 10px; display: flex; gap: 8px; }
+.cal-label { color: #ffd700; }
+.cal-val { color: #4af0c0; }
+.cal-err { color: #ff4466; opacity: 0.8; }