diff --git a/index.html b/index.html
index f30ab6f..4ebd98a 100644
--- a/index.html
+++ b/index.html
@@ -526,6 +526,25 @@
             font-size: 13px;
         }
 
+        /* ── Edge modal (same base as modal-overlay) ──────── */
+        #edge-modal-overlay {
+            position: fixed;
+            inset: 0;
+            background: rgba(0,0,0,0.6);
+            z-index: 30;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            padding: 20px;
+            opacity: 0;
+            pointer-events: none;
+            transition: opacity 0.2s;
+        }
+        #edge-modal-overlay.open {
+            opacity: 1;
+            pointer-events: all;
+        }
+
         /* ── AI Context output ─────────────────────────────── */
         #ai-modal-overlay {
             position: fixed;
@@ -740,7 +759,7 @@
 
 <!-- Edge add modal -->
 <div id="edge-modal-overlay" role="dialog" aria-modal="true" aria-labelledby="edge-modal-title">
-    <div id="modal" style="max-width:380px">
+    <div id="edge-modal" style="background:var(--surface);border:1px solid var(--border);border-radius:16px;width:100%;max-width:380px;max-height:90vh;overflow-y:auto">
         <div class="modal-header">
             <span class="modal-title" id="edge-modal-title">接続を追加</span>
             <button class="icon-btn" id="edge-modal-close-btn" aria-label="閉じる">
diff --git a/logo.png b/logo.png
new file mode 100644
index 0000000..fc8ddec
Binary files /dev/null and b/logo.png differ