Update app.py

app.py

@@ -80,14 +80,21 @@ def classify_sentence_by_sentence(text, threshold=0.70, max_len=512):
         ai_p = float(probs[i-1, 1].item())
         label = "AI" if ai_p >= threshold else "Human"
         pct = f"{ai_p*100:.1f}%"
-        # color
-        if ai_p < 0.30: color = "#11823b"      # green
-        elif ai_p < 0.70: color = "#b8860b"    # amber
-        else: color = "#b80d0d"                # red
+
+        # choose color
+        if ai_p < 0.30:
+            color = "#11823b"      # green
+        elif ai_p < 0.70:
+            color = "#b8860b"      # amber
+        else:
+            color = "#b80d0d"      # red
+
+        # ✅ avoid backslashes inside the f-string expression
+        normalized = re.sub(r"\s+", " ", s)
+
         highlights.append(
-            f"<div style='margin:6px 0; padding:6px 8px; border-radius:6px; background:rgba(0,0,0,0.03)'>"
-            f"<strong style='color:{color}'>[{pct} {label}]</strong> "
-            f"{re.sub(r'\\s+', ' ', s)}</div>"
+            "<div style='margin:6px 0; padding:6px 8px; border-radius:6px; background:rgba(0,0,0,0.03)'>"
+            f"<strong style='color:{color}'>[{pct} {label}]</strong> {normalized}</div>"
         )
         rows.append([i, s, round(ai_p, 4), label])