Danger modal: ensure not visible by default; show via class toggle; fix acknowledge button to close and restore focus

css/style.css

@@ -1,4 +1,5 @@
-.danger-modal-backdrop { position: fixed !important; top:0; left:0; right:0; bottom:0; background: rgba(0,0,0,.6); z-index: 10000; display:flex; align-items:center; justify-content:center; }
+.danger-modal-backdrop { position: fixed !important; top:0; left:0; right:0; bottom:0; background: rgba(0,0,0,.6); z-index: 10000; display:none; align-items:center; justify-content:center; }
+.danger-active .danger-modal-backdrop { display:flex; }
 .danger-modal { width: 560px; max-width: calc(100% - 32px); background: #0b0f0b; border: 1px solid #2e7d32; border-radius: 10px; box-shadow: 0 18px 48px rgba(0,0,0,.6); transform: scale(.96); animation: danger-pop .18s ease-out forwards; }
 @keyframes danger-pop { to { transform: scale(1); } }
 .danger-header { display:flex; align-items:center; gap:8px; padding: 14px 16px; color:#69f0ae; border-bottom:1px solid #1b5e20; font-size:1.05rem; }

index.html

@@ -805,7 +805,7 @@
     </div>
 
     <!-- Danger Zone Modal -->
-    <div v-if="showDangerModal" class="danger-modal-backdrop">
+    <div :class="['danger-modal-backdrop', showDangerModal ? 'danger-active' : '']">
         <div class="danger-modal">
             <div class="danger-header">
                 <i class="fas fa-radiation"></i>

js/app.js

@@ -1721,7 +1721,16 @@ window.app = new Vue({
         },
 
         // Modal acknowledge handler
-        proceedDangerAction() { this.showDangerModal = false; },
+        proceedDangerAction() {
+            // Close modal and return focus to Generate button for accessibility
+            this.showDangerModal = false;
+            this.$nextTick(() => {
+                try {
+                    const btn = document.querySelector('.token-bomb-actions .transform-button');
+                    btn && btn.focus();
+                } catch (_) {}
+            });
+        },
 
         // Token Bomb Generator Logic
         generateTokenBomb() {