diff --git a/cortex/static/style.css b/cortex/static/style.css
index 740d308..5ccd1c9 100644
--- a/cortex/static/style.css
+++ b/cortex/static/style.css
@@ -635,8 +635,8 @@
             position: relative;
             flex-shrink: 0;
             display: flex;
-            flex-direction: column;
-            align-items: stretch;
+            flex-direction: row;
+            align-items: center;
             gap: 4px;
         }
 
@@ -654,10 +654,9 @@
             white-space: nowrap;
             transition: border-color 0.15s, color 0.15s;
         }
-        #mode-select-btn:hover                  { border-color: var(--muted); color: var(--text); }
-        #mode-select-btn.mode-note              { border-color: rgba(180,130,40,0.6); color: #c9a84c; }
-        #mode-select-btn.mode-otr               { border-color: rgba(120,80,160,0.6); color: #a87fd4; }
-        #mode-select-btn.mode-agent             { border-color: rgba(80,140,200,0.6); color: #7cb9e8; }
+        #mode-select-btn:hover     { border-color: var(--muted); color: var(--text); }
+        #mode-select-btn.mode-note { border-color: rgba(180,130,40,0.6); color: #c9a84c; }
+        #mode-select-btn.mode-otr  { border-color: rgba(120,80,160,0.6); color: #a87fd4; }
 
         #mode-icon  { display: flex; align-items: center; }
         .mode-arrow { font-size: 0.55rem; color: var(--muted); margin-left: 2px; opacity: 0.5; }
@@ -757,8 +756,7 @@
         #input.mode-note:focus        { border-color: rgba(180,130,40,0.85); }
         #input.mode-note.public       { border-color: rgba(40,170,150,0.55); }
         #input.mode-note.public:focus { border-color: rgba(40,170,150,0.85); }
-        #input.mode-otr               { border-color: rgba(120,80,160,0.4); background: rgba(120,80,160,0.04); }
-        #input.mode-agent             { border-color: rgba(80,140,200,0.4); }
+        #input.mode-otr { border-color: rgba(120,80,160,0.4); background: rgba(120,80,160,0.04); }
 
         /* Send column — right side, stacked */
         #send-col {
@@ -1517,17 +1515,10 @@
                 font-size: 16px; /* prevent iOS Safari auto-zoom */
             }
 
-            /* Mode select: row layout (btn left, note-vis right) */
-            #mode-select {
-                flex-direction: row;
-                flex: 1;
-                align-items: center;
-            }
+            /* Mode select: grows to fill left side of bottom row */
+            #mode-select { flex: 1; }
             #mode-select-btn { flex: 1; justify-content: center; }
 
-            /* Note vis button sits to the right of the mode btn on mobile */
-            #note-vis-btn { margin-top: 0; }
-
             /* Dropdown still opens upward on mobile */
             #mode-dropdown { min-width: 140px; }