diff --git a/frontend-v2/src/lib/pages/brain/AtelierBrainPage.svelte b/frontend-v2/src/lib/pages/brain/AtelierBrainPage.svelte
index f16d36b..366d362 100644
--- a/frontend-v2/src/lib/pages/brain/AtelierBrainPage.svelte
+++ b/frontend-v2/src/lib/pages/brain/AtelierBrainPage.svelte
@@ -820,15 +820,15 @@
     display: flex; gap: 4px; padding: 0 12px; margin-bottom: 6px;
   }
   .sidebar-add-input {
-    flex: 1; padding: 6px 10px; border-radius: 10px;
+    flex: 1; min-width: 0; padding: 6px 8px; border-radius: 10px;
     border: 1px solid rgba(35,26,17,0.12); background: rgba(255,255,255,0.7);
-    font-size: 0.8rem; font-family: var(--font); color: #1e1812; outline: none;
+    font-size: 0.78rem; font-family: var(--font); color: #1e1812; outline: none;
   }
   .sidebar-add-input:focus { border-color: rgba(179,92,50,0.4); }
   .sidebar-add-input::placeholder { color: #8c7b69; }
   .sidebar-add-go {
-    padding: 6px 10px; border-radius: 10px; border: none;
-    background: #1e1812; color: white; font-size: 0.75rem; font-weight: 600;
+    flex-shrink: 0; padding: 6px 8px; border-radius: 10px; border: none;
+    background: #1e1812; color: white; font-size: 0.72rem; font-weight: 600;
     font-family: var(--font); cursor: pointer;
   }