Fixed chat input and header UI

app.py

@@ -229,24 +229,24 @@ st.markdown("""
 }
 
 /* Chat input styling - Fixed alignment */
-.stChatInput {
-    border-radius: 12px !important;
-    border: 5px solid #e5e7eb !important;
-    background: #ffffff !important;
-    padding: 0.75rem 1rem !important;
-    font-size: 1rem !important;
-    width: 100% !important;
-    max-width: none !important;
-    margin: 0 !important;
-    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important;
-    transition: all 0.2s ease !important;
-}
+# .stChatInput {
+#     border-radius: 12px !important;
+#     border: 2px solid #e5e7eb !important;
+#     background: #ffffff !important;
+#     padding: 0.75rem 1rem !important;
+#     font-size: 1rem !important;
+#     width: 100% !important;
+#     max-width: 70% !important;
+#     margin: 0 !important;
+#     box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important;
+#     transition: all 0.2s ease !important;
+# }
 
-.stChatInput:focus {
-    border-color: #3b82f6 !important;
-    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
-    outline: none !important;
-}
+# .stChatInput:focus {
+#     border-color: #3b82f6 !important;
+#     box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
+#     outline: none !important;
+# }
 
 /* Chat input container */
 .stChatInput > div {
@@ -255,33 +255,35 @@ st.markdown("""
 }
 
 /* Chat input text area */
-.stChatInput textarea {
-    border: none !important;
-    background: transparent !important;
-    padding: 0 !important;
-    margin: 0 !important;
-    font-size: 1rem !important;
-    line-height: 1.5 !important;
-    resize: none !important;
-    outline: none !important;
-}
+# .stChatInput textarea {
+#     border: none !important;
+#     background: transparent !important;
+#     padding: 0 !important;
+#     margin: 0 !important;
+#     font-size: 1rem !important;
+#     line-height: 1.5 !important;
+#     resize: none !important;
+#     outline: none !important;
+# }
 
 /* Chat input placeholder */
-.stChatInput textarea::placeholder {
-    color: #9ca3af !important;
-    font-style: normal !important;
+# .stChatInput textarea::placeholder {
+#     color: #9ca3af !important;
+#     font-style: normal !important;
+# }
+
+.st-emotion-cache-f4ro0r {
+    align-items = center;
 }
 
 /* Fix the main chat input container alignment */
 [data-testid="stChatInput"] {
     position: fixed !important;
-    bottom: 0 !important;
-    left: 0 !important;
+    bottom: 0.5rem !important;
+    left: 6rem !important;
     right: 0 !important;
     background: #ffffff !important;
-    border-top: 1px solid #e5e7eb !important;
-    padding: 1rem !important;
-    z-index: 1000 !important;
+    width: 65% !important;  
     box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1) !important;
 }
 
@@ -290,25 +292,12 @@ st.markdown("""
     padding-bottom: 100px !important;
 }
 
-# /* Alternative: If you prefer inline chat input (not fixed) */
-# /*
-# [data-testid="stChatInput"] {
-#     background: #f8fafc !important;
-#     border: 1px solid #e2e8f0 !important;
-#     border-radius: 12px !important;
-#     padding: 0.75rem !important;
-#     margin: 1rem 0 !important;
-#     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important;
-# }
-# */
-
 /* Chat input button styling */
 [data-testid="stChatInput"] button {
     background: #3b82f6 !important;
     color: white !important;
     border: none !important;
     border-radius: 12px !important;
-    padding: 0.5rem 1rem !important;
     font-weight: 600 !important;
     transition: background-color 0.2s ease !important;
 }
@@ -317,6 +306,17 @@ st.markdown("""
     background: #2563eb !important;
 }
 
+/* Textarea inside chat input */
+[data-testid="stChatInput"] [data-baseweb="textarea"] {
+    border: 2px solid #3b82f6 !important;
+    border-radius: 12px !important;
+    font-size: 16px !important;
+    color: #111 !important;
+
+    width: 100% !important;   /* fill the parent container */
+    box-sizing: border-box !important;
+}
+
 /* Ensure proper spacing from sidebar */
 @media (min-width: 768px) {
     [data-testid="stChatInput"] {
@@ -615,28 +615,25 @@ st.markdown("""
     align-items: center; 
     justify-content: center; 
     padding: 0.5rem 0; 
-    gap: 15px;
-    border-bottom: 1px solid 
-#e5e7eb;
+    gap: 12px;
+    border-bottom: 1px solid #e5e7eb;
     margin-bottom: 1rem;
 '>
     <img src='https://sustainability-lab.github.io/images/logo_light.svg' 
          style='height: 80px;' />
-    <h1 style='
-        margin: 0; 
-        font-size: 1.8rem; 
-        font-weight: 700; 
-        color: 
-#1f2937;
-        line-height: 100px;
-    '>VayuChat</h1>
-    <span style='
-        font-size: 0.9rem; 
-        color: 
-#6b7280;
-        line-height: 100px;
-        font-weight: 500;
-    '>AI Air Quality Analysis • Sustainability Lab, IIT Gandhinagar</span>
+    <div style='display: flex; flex-direction: column; line-height: 1.2;'>
+        <h1 style='
+            margin: 0; 
+            font-size: 1.5rem; 
+            font-weight: 700; 
+            color: #2563eb;
+        '>VayuChat</h1>
+        <span style='
+            font-size: 0.85rem; 
+            color: #6b7280;
+            font-weight: 500;
+        '>AI Air Quality Analysis • Sustainability Lab, IIT Gandhinagar</span>
+    </div>
 </div>
 """, unsafe_allow_html=True)