Fix animation inconsistencies on pages with loading spinners

src/app/dashboard/dpp/page.tsx

@@ -232,7 +232,7 @@ export default function DPPPage() {
 
       {/* ── PROTECTED PDF READER MODAL (FREE TIER) ── */}
       {selectedPdfDpp && (
-        <div className={`fixed inset-0 z-50 bg-black/90 backdrop-blur-md flex items-center justify-center ${isFullScreen ? 'p-0' : 'p-4'} animate-in fade-in zoom-in-95 slide-in-from-bottom-4 duration-500`}>
+        <div className={`fixed inset-0 z-50 bg-black/90 backdrop-blur-md flex items-center justify-center ${isFullScreen ? 'p-0' : 'p-4'}`}>
           <div className={`bg-background border border-border ${isFullScreen ? 'w-screen h-screen max-w-none max-h-none rounded-none border-0' : 'rounded-3xl w-full max-w-7xl max-h-[95vh]'} flex flex-col overflow-hidden shadow-2xl transition-all duration-300`}>
             {/* Modal Header */}
             <div className="p-4 md:p-5 border-b border-border bg-secondary/30 flex items-center justify-between">