diff --git a/app/reservations/page.js b/app/reservations/page.js
index a7f4f39..859b31d 100644
--- a/app/reservations/page.js
+++ b/app/reservations/page.js
@@ -68,6 +68,24 @@ function parseTimeSpan(str) {
   return ((days * 86400) + (hh * 3600) + (mm * 60) + ss) * 1000;
 }
 
+function formatWindowDuration(str) {
+  if (!str) return '';
+  const clean = str.replace(/-/g, '');
+  const dotIdx = clean.indexOf('.');
+  let totalHours = 0, timePart = clean;
+  if (dotIdx !== -1) {
+    const days = parseInt(clean.substring(0, dotIdx), 10) || 0;
+    totalHours += days * 24;
+    timePart = clean.substring(dotIdx + 1);
+  }
+  const parts = timePart.split(':');
+  if (parts.length >= 2) {
+    totalHours += parseInt(parts[0], 10) || 0;
+  }
+  if (totalHours > 0) return `${String(totalHours).padStart(2, '0')}:00:00`;
+  return timePart.substring(0, 8);
+}
+
 function CountdownTimer({ deadline }) {
   const [remaining, setRemaining] = useState(deadline ? Math.max(0, deadline - Date.now()) : 0);
   useEffect(() => {
@@ -96,6 +114,7 @@ function ReservationCard({ r, onViewDetails, onPay, payingId }) {
   const deadline = isOwnerConfirmed && r.ownerApprovalDate
     ? new Date(r.ownerApprovalDate).getTime() + parseTimeSpan(r.allowedPaymentPeriod)
     : null;
+  const isExpired = deadline ? Date.now() > deadline : false;
   const isPaying = payingId === r.id;
 
   return (
@@ -124,16 +143,19 @@ function ReservationCard({ r, onViewDetails, onPay, payingId }) {
             <div className="text-sm font-medium">{new Date(r.endDate).toLocaleDateString('ar')}</div>
           </div>
         </div>
-        {isOwnerConfirmed && <div className="flex items-center justify-between bg-blue-50 p-3 rounded-xl mb-3">
-          <span className="text-sm text-blue-800 font-medium flex items-center gap-1"><Timer className="w-4 h-4"/> متبقي للدفع:</span>
-          <CountdownTimer deadline={deadline} />
+        {isOwnerConfirmed && <div className="bg-blue-50 p-3 rounded-xl mb-3">
+          <div className="flex items-center justify-between mb-1">
+            <span className="text-sm text-blue-800 font-medium flex items-center gap-1"><Timer className="w-4 h-4"/> متبقي للدفع:</span>
+            <CountdownTimer deadline={deadline} />
+          </div>
+          {r.allowedPaymentPeriod && <div className="text-xs text-blue-600">مدة الدفع: {formatWindowDuration(r.allowedPaymentPeriod)}</div>}
         </div>}
         <div className="flex gap-3 pt-3 border-t border-gray-100">
           <button onClick={() => onViewDetails(r)}
             className="flex-1 bg-gray-100 text-gray-700 py-2 rounded-xl text-sm font-medium hover:bg-gray-200 transition-colors flex items-center justify-center gap-2">
             <Eye className="w-4 h-4"/> التفاصيل
           </button>
-          {isOwnerConfirmed && <button onClick={() => onPay(r)} disabled={isPaying}
+          {isOwnerConfirmed && !isExpired && <button onClick={() => onPay(r)} disabled={isPaying}
             className={`flex-1 py-2 rounded-xl text-sm font-medium transition-colors flex items-center justify-center gap-2 ${isPaying ? 'bg-gray-300 text-gray-500 cursor-not-allowed' : 'bg-amber-500 text-white hover:bg-amber-600'}`}>
             {isPaying ? <Loader2 className="w-4 h-4 animate-spin"/> : <CreditCard className="w-4 h-4"/>} {isPaying ? 'جاري الدفع...' : 'ادفع الآن'}
           </button>}
@@ -150,6 +172,7 @@ function DetailsModal({ r, isOpen, onClose, onPay, payingId }) {
   const deadline = isOwnerConfirmed && r.ownerApprovalDate
     ? new Date(r.ownerApprovalDate).getTime() + parseTimeSpan(r.allowedPaymentPeriod)
     : null;
+  const isExpired = deadline ? Date.now() > deadline : false;
   const isPaying = payingId === r.id;
 
   return (
@@ -186,13 +209,16 @@ function DetailsModal({ r, isOpen, onClose, onPay, payingId }) {
             <h3 className="font-bold text-amber-700 mb-3 flex items-center gap-2"><DollarSign className="w-5 h-5"/> المعلومات المالية</h3>
             <div className="flex justify-between font-bold"><span className="text-gray-900">الإجمالي</span><span className="text-amber-600 text-lg">{r.totalPrice?.toLocaleString()??'—'}</span></div>
           </div>
-          {isOwnerConfirmed && <div className="flex items-center justify-between bg-blue-50 p-4 rounded-xl">
-            <span className="text-blue-800 font-medium flex items-center gap-2"><Timer className="w-5 h-5"/> متبقي للدفع:</span>
-            <CountdownTimer deadline={deadline} />
-            <button onClick={() => { onPay(r); onClose(); }} disabled={isPaying}
-              className={`px-6 py-2 rounded-xl font-medium transition-colors flex items-center gap-2 ${isPaying ? 'bg-gray-300 text-gray-500 cursor-not-allowed' : 'bg-amber-500 text-white hover:bg-amber-600'}`}>
+          {isOwnerConfirmed && <div className="bg-blue-50 p-4 rounded-xl">
+            <div className="flex items-center justify-between mb-2">
+              <span className="text-blue-800 font-medium flex items-center gap-2"><Timer className="w-5 h-5"/> متبقي للدفع:</span>
+              <CountdownTimer deadline={deadline} />
+            </div>
+            {r.allowedPaymentPeriod && <div className="text-xs text-blue-600 mb-3">مدة الدفع: {formatWindowDuration(r.allowedPaymentPeriod)}</div>}
+            {!isExpired && <button onClick={() => { onPay(r); onClose(); }} disabled={isPaying}
+              className={`w-full py-2 rounded-xl font-medium transition-colors flex items-center justify-center gap-2 ${isPaying ? 'bg-gray-300 text-gray-500 cursor-not-allowed' : 'bg-amber-500 text-white hover:bg-amber-600'}`}>
               {isPaying ? <Loader2 className="w-5 h-5 animate-spin"/> : <CreditCard className="w-5 h-5"/>} {isPaying ? 'جاري الدفع...' : 'ادفع الآن'}
-            </button>
+            </button>}
           </div>}
         </div>
       </motion.div>
@@ -241,7 +267,12 @@ export default function UserReservationsPage() {
   const handlePay = async (r) => {
     setPayingId(r.id);
     try {
-      await payDeposit({ reservationId: r.id });
+      await payDeposit({
+        reservationId: r.id,
+        paymentTypeId: 1,
+        transactionType: 1,
+        comment: null,
+      });
       toast.success('تم دفع السلفة بنجاح!');
       loadReservations();
     } catch (err) {