fix: make fullscreen card transparent

src/server/app-assets.ts

@@ -164,7 +164,7 @@ export const APP_STYLES = `      :root {
 
       aside,
       main,
-      .overlay-card {
+      .card {
         background: var(--panel);
         backdrop-filter: blur(14px);
         border: 1px solid var(--border);
@@ -172,6 +172,12 @@ export const APP_STYLES = `      :root {
         box-shadow: var(--shadow);
       }
 
+      .overlay-card {
+        background: transparent;
+        border: 0;
+        box-shadow: none;
+      }
+
       .muted {
         color: var(--muted);
       }