Update app.py

app.py

@@ -196,7 +196,7 @@ def _person_of_doc(doc, src_lang: str) -> Optional[str]:
         root = next((t for t in doc if t.dep_=="ROOT"), doc[0])
         subj = next((t for t in root.children if t.dep_.startswith("nsubj")), None)
         if subj is None: return None
-        plur = ("Number=Plur" in str(subj.morph)) if src_lang=="Español" else (subj.tag_ in ("NSS","NNPS","NNS"))
+        plur = ("Number=Plur" in str(subj.morph)) if src_lang=="Español" else (subj.tag_ in ("NNS","NNPS"))
         low = subj.lower_
         if src_lang=="Español":
             if low in ("yo",): return "1p" if plur else "1s"
@@ -633,7 +633,8 @@ def round_trip(text, src, tgt, mode, max_comp_exact):
 
 # ====================== UI simple (pestañas + 3 casillas) ======================
 
-EXPLAIN_TOP = """
+# NUEVO: explicación bilingüe con selector ES/EN (no afecta a la lógica)
+EXPLAIN_TOP_ES = """
 ## ¿Qué hace esta app? (versión fácil)
 Convierte frases entre **Español / Inglés** y dos lenguajes inventados (conlangs):
 - **Minimax-ASCII**: versión compacta con letras normales (ASCII).
@@ -668,11 +669,54 @@ Convierte frases entre **Español / Inglés** y dos lenguajes inventados (conlan
 - ¿Dudas? Prueba **ida→vuelta**.
 """
 
+EXPLAIN_TOP_EN = """
+## What does this app do? (simple)
+It converts sentences between **Spanish / English** and two constructed languages (conlangs):
+- **Minimax-ASCII**: compact, ASCII-only style.
+- **Kōmín-CJK**: compact output with CJK-like symbols.
+
+### What is it for?
+- To **shrink** messages while keeping their meaning.
+- To **encode** and later **recover** the exact original text if you want.
+
+---
+
+## The 4 tabs (buttons)
+1) **Translate** — Convert **any** system to **any** other (ES, EN, Minimax, Kōmín).
+2) **Build (ES/EN → Conlang)** — Take your natural sentence and build its **compact** version (Minimax/Kōmín) with options.
+3) **Decode (Conlang → ES/EN)** — Paste Minimax/Kōmín and get Spanish or English back. If it includes `~...`, you get the **exact original**.
+4) **Round-trip test** — Go to the conlang and back to your language to verify the result.
+
+---
+
+## The 3 checkboxes (simple options)
+- **Drop articles**: remove “el/la/los/las” or “a/an/the” → often saves ~10–15%.
+- **Zero copula (present affirmative)**: hide “ser/estar/be” where natural → +~5–10%.
+- **Max Exact Compression**: appends `~...` with your **compressed** original text. When decoding, if present, you get the **exact original** back.
+  Note: for **very short** texts it might not reduce size because of the `~...` header.
+
+---
+
+## Quick tips
+- If unsure, use **Translate**.
+- To **compact**, use **Build** and tick what you want.
+- If someone sends you conlang, use **Decode**.
+- Not sure? Try **round-trip**.
+"""
+
 ALL_LANGS = ["Español","English","Minimax-ASCII","Kōmín-CJK"]
 
 with gr.Blocks(title="Universal Conlang Translator", theme=gr.themes.Soft()) as demo:
     gr.Markdown("# 🌐 Universal Conlang Translator")
-    gr.Markdown(EXPLAIN_TOP)
+
+    # Selector de idioma para la explicación (solo UI de texto)
+    lang_ui = gr.Radio(choices=["ES", "EN"], value="ES", label="Idioma de la explicación / Explanation language")
+    explain_md = gr.Markdown(EXPLAIN_TOP_ES)
+
+    def _set_explain(lang):
+        return gr.update(value=EXPLAIN_TOP_ES if lang == "ES" else EXPLAIN_TOP_EN)
+
+    lang_ui.change(_set_explain, inputs=[lang_ui], outputs=[explain_md])
 
     # --- Traducir (universal) ---
     with gr.Tab("Traducir / Translate"):
@@ -748,3 +792,4 @@ with gr.Blocks(title="Universal Conlang Translator", theme=gr.themes.Soft()) as
 if __name__ == "__main__":
     demo.launch()
 
+