Update app.py

app.py

@@ -36,19 +36,43 @@ CROSS_NUDGE = 0.02
 # Page / CSS
 # =========================
 st.set_page_config(page_title="ST_GeoMech_UCS", page_icon="logo.png", layout="wide")
+st.markdown("""
+<style>
+  /* Reusable logo style */
+  .brand-logo { width: 100px; height: auto; object-fit: contain; }
+
+  /* Sidebar header layout */
+  .sidebar-header { display:flex; align-items:center; gap:12px; }
+  .sidebar-header .text h1 { font-size: 1.05rem; margin:0; line-height:1.1; }
+  .sidebar-header .text .tag { font-size: .85rem; color:#6b7280; margin:2px 0 0; }
+</style>
+""", unsafe_allow_html=True)
 
 # Hide file-uploader helper text + center dataframes (headers & cells)
 st.markdown("""
 <style>
-/* Hide 'Drag and drop file here' and limit note in uploader */
+/* Keep the uploader and its Browse button, but hide the drag/drop helper lines */
+
+/* Older builds (helper wrapped in a Markdown container) */
 section[data-testid="stFileUploader"] div[data-testid="stMarkdownContainer"] {
   display: none !important;
 }
-/* Center st.dataframe headers and cells */
-div[data-testid="stDataFrame"] div[role="columnheader"] { justify-content: center; }
-div[data-testid="stDataFrame"] div[role="gridcell"]     { justify-content: center; }
-/* Remove default app header/footer */
-header, footer { visibility: hidden !important; }
+
+/* 1.31–1.34 style (first child inside the dropzone is the helper row) */
+section[data-testid="stFileUploader"] [data-testid="stFileUploaderDropzone"] > div:first-child {
+  display: none !important;
+}
+
+/* 1.35+ explicit helper container */
+section[data-testid="stFileUploader"] [data-testid="stFileUploaderInstructions"] {
+  display: none !important;
+}
+
+/* Fallback: remove any paragraph/small text inside the uploader */
+section[data-testid="stFileUploader"] p,
+section[data-testid="stFileUploader"] small {
+  display: none !important;
+}
 </style>
 """, unsafe_allow_html=True)