Update src/streamlit_app.py

src/streamlit_app.py

@@ -28,6 +28,81 @@ from streamlit_extras.stylable_container import stylable_container
 
 
 
+# --- Payment Variables ---
+# !!! CRITICAL 1: Replace this placeholder with your actual PayPal email or Merchant ID. !!!
+PAYPAL_BUSINESS_EMAIL = "maria.tsilimos@proton.me"
+CURRENCY_CODE = "USD"
+# !!! CRITICAL 2: URL to redirect the user to after they successfully complete payment on PayPal.
+SUCCESS_URL = "https://www.yourdomain.com/payment-thank-you"
+
+# --- Fixed Price Configuration (Only one upgrade option) ---
+FIXED_AMOUNT = 25.00
+FIXED_ITEM_NAME = "Premium Service Upgrade"
+ITEM_NAME = FIXED_ITEM_NAME
+AMOUNT = FIXED_AMOUNT
+
+# Generate the payment link with success redirection
+PAYMENT_LINK = (
+    f"https://www.paypal.com/cgi-bin/webscr?"
+    f"cmd=_xclick&"
+    f"business={PAYPAL_BUSINESS_EMAIL}&"
+    f"item_name={ITEM_NAME}&"
+    f"amount={AMOUNT:.2f}&"
+    f"currency_code={CURRENCY_CODE}&"
+    f"return={SUCCESS_URL}"
+)
+
+# HTML for a clean, functional PayPal Button that only says "Upgrade"
+paypal_html = f"""
+<div style="margin-top: 0px; text-align: right;">
+    <a href="{PAYMENT_LINK}" target="_blank" style="
+        display: inline-block;
+        padding: 8px 16px;
+        font-size: 14px;
+        font-weight: bold;
+        color: white !important;
+        background-color: #0070BA; 
+        border-radius: 5px;
+        text-align: center;
+        text-decoration: none;
+        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+        transition: background-color 0.1s;
+    " onmouseover="this.style.backgroundColor='#008CDB'" onmouseout="this.style.backgroundColor='#0070BA'">
+        Upgrade
+    </a>
+</div>
+"""
+
+# --- Layout: Place content and the button on the same top row ---
+# col1: for the main content ("Hello")
+# col_spacer: to push the button to the far right
+# col3: for the "Upgrade" button
+
+col1, col_spacer, col3 = st.columns([1, 5, 1])
+
+# --- Content ---
+with col1:
+    st.write("Hello")
+
+# --- Button (Top Right) ---
+with col3:
+    st.markdown(paypal_html, unsafe_allow_html=True)
+
+# Note: The original verbose payment explanation sections have been removed.
+
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