Every screen deals itself in, every time

The entrance is no longer a one-off on the boot: dealStage re-arms the class at
the funnel every stage change already passes, so the title screen flies its
plaque and buttons in whenever you arrive at it. The sub-menus join in — their
header, content and footer arrive one after the other instead of the panel
dropping in as one slab — and the poster wall deals its three rooms rather than
its list, since a moving child inside a moving parent starts at twice the
offset and reads as a stutter.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/main.js

@@ -93,8 +93,22 @@ const go = stage => {
   if (stage === 'train') buildTrain();
   intro.dataset.stage = stage;
   intro.scrollTop = 0;
+  dealStage(stage);
   menuMusic();
 };
+// THE ARCADE ENTRANCE, re-armed. The title screen deals its plaque and buttons in from the left
+// every time you arrive at it — off a run, off the stats, off the boot. Removing the class and
+// forcing a reflow before adding it back is the whole trick: an animation whose class never left
+// cannot restart, and there is no "replay" switch in CSS.
+function dealStage(stage) {
+  // the title screen waits for the boot: while the loading state is up there is nothing to deal
+  // (the element is looked up here, not read off the const below: go() can fire before that line
+  // has run, and a temporal-dead-zone throw in the menu funnel would take every screen with it)
+  if (stage === 'splash' && document.getElementById('splash').classList.contains('busy')) return;
+  intro.classList.remove('deal');
+  void intro.offsetWidth;
+  intro.classList.add('deal');
+}
 
 // --- MODE selection in TWO STEPS (config.MENU + config.MODES): three posters on top, and the
 // picked one deals its own second step underneath — classic deals the difficulty chips, zombie
@@ -1001,7 +1015,8 @@ const tick = setInterval(function watchLoad() {
   clearInterval(tick);
   // fonts.ready resolves once nothing is pending — including the three faces warmed above — so the
   // first canvas frame is never the system serif.
-  (document.fonts ? document.fonts.ready : Promise.resolve()).then(() => splash.classList.remove('busy'));
+  (document.fonts ? document.fonts.ready : Promise.resolve())
+    .then(() => { splash.classList.remove('busy'); dealStage('splash'); });
 }, 100);
 
 // THE FIRST TAP ANYWHERE ON THE OVERLAY STARTS THE THEME, and does nothing else — the screens have