Restore drag-and-drop and add promo deactivation with Telegram popup

Payment methods drag-and-drop fixes:
- Restore original working drag-and-drop from commit 84c6d26
- Use position: relative instead of opacity for dragged items
- Remove closestCenter collision detection
- Use PointerSensor with distance: 5 without TouchSensor
- Restore touch-none and responsive padding on drag handles
- Restore original shadow and background colors

Promo deactivation feature:
- Add deactivation button to active discount banner in PromoOffersSection
- Use Telegram native popup (showPopup) in Mini App environment
- Fallback to modal for web browsers
- Add confirmation modal with warning about permanent action
- Integrate with useTelegramSDK for proper platform detection

src/components/PromoOffersSection.tsx

@@ -1,9 +1,11 @@
-import { useState } from 'react';
+import { useState, useEffect } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useTranslation } from 'react-i18next';
-import { Link } from 'react-router-dom';
+import { useNavigate } from 'react-router-dom';
+import { createPortal } from 'react-dom';
 import { promoApi, PromoOffer } from '../api/promo';
 import { ClockIcon, CheckIcon } from './icons';
+import { useTelegramSDK } from '../hooks/useTelegramSDK';
 
 // Helper functions
 const formatTimeLeft = (
@@ -68,16 +70,166 @@ const getOfferDescription = (
   return t('promo.offers.activateDiscountHint');
 };
 
+// Icons for deactivation
+const XCircleIcon = () => (
+  <svg className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+    <path
+      strokeLinecap="round"
+      strokeLinejoin="round"
+      d="M9.75 9.75l4.5 4.5m0-4.5l-4.5 4.5M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
+    />
+  </svg>
+);
+
+const WarningIcon = () => (
+  <svg
+    className="h-12 w-12"
+    fill="none"
+    viewBox="0 0 24 24"
+    stroke="currentColor"
+    strokeWidth={1.5}
+  >
+    <path
+      strokeLinecap="round"
+      strokeLinejoin="round"
+      d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z"
+    />
+  </svg>
+);
+
+// ------- Confirmation Modal -------
+
+interface DeactivateConfirmModalProps {
+  isOpen: boolean;
+  discountPercent: number;
+  isDeactivating: boolean;
+  onConfirm: () => void;
+  onCancel: () => void;
+}
+
+function DeactivateConfirmModal({
+  isOpen,
+  discountPercent,
+  isDeactivating,
+  onConfirm,
+  onCancel,
+}: DeactivateConfirmModalProps) {
+  const { t } = useTranslation();
+
+  // Escape key to close
+  useEffect(() => {
+    if (!isOpen) return;
+
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === 'Escape' && !isDeactivating) {
+        e.preventDefault();
+        onCancel();
+      }
+    };
+
+    document.addEventListener('keydown', handleKeyDown);
+    return () => document.removeEventListener('keydown', handleKeyDown);
+  }, [isOpen, isDeactivating, onCancel]);
+
+  // Scroll lock
+  useEffect(() => {
+    if (!isOpen) return;
+
+    document.body.style.overflow = 'hidden';
+    return () => {
+      document.body.style.overflow = '';
+    };
+  }, [isOpen]);
+
+  if (!isOpen) return null;
+
+  const modalContent = (
+    <div
+      className="fixed inset-0 z-[100] flex items-center justify-center"
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="deactivate-modal-title"
+    >
+      {/* Backdrop */}
+      <div
+        className="absolute inset-0 bg-black/70 backdrop-blur-sm"
+        onClick={isDeactivating ? undefined : onCancel}
+      />
+
+      {/* Modal */}
+      <div
+        className="relative mx-4 w-full max-w-sm overflow-hidden rounded-2xl border border-dark-700/50 bg-dark-900 shadow-2xl"
+        onClick={(e) => e.stopPropagation()}
+      >
+        {/* Warning header */}
+        <div className="flex flex-col items-center bg-gradient-to-br from-warning-500/20 to-red-500/20 px-6 pb-6 pt-8">
+          <div className="mb-3 text-warning-400">
+            <WarningIcon />
+          </div>
+          <h2 id="deactivate-modal-title" className="text-center text-lg font-bold text-dark-100">
+            {t('promo.deactivate.confirmTitle')}
+          </h2>
+          <p className="mt-2 text-center text-sm text-dark-300">
+            {t('promo.deactivate.confirmDescription', { percent: discountPercent })}
+          </p>
+        </div>
+
+        {/* Warning text */}
+        <div className="px-6 py-4">
+          <div className="rounded-lg border border-warning-500/20 bg-warning-500/10 px-4 py-3">
+            <p className="text-center text-sm text-warning-400">{t('promo.deactivate.warning')}</p>
+          </div>
+        </div>
+
+        {/* Action buttons */}
+        <div className="flex gap-3 px-6 pb-6">
+          <button
+            onClick={onCancel}
+            disabled={isDeactivating}
+            className="flex-1 rounded-xl bg-dark-800 py-3 font-semibold text-dark-300 transition-colors hover:bg-dark-700 hover:text-dark-100 disabled:opacity-50"
+          >
+            {t('common.cancel')}
+          </button>
+          <button
+            onClick={onConfirm}
+            disabled={isDeactivating}
+            className="flex-1 rounded-xl bg-gradient-to-r from-red-500 to-red-600 py-3 font-semibold text-white shadow-lg shadow-red-500/25 transition-all hover:from-red-400 hover:to-red-500 active:from-red-600 active:to-red-700 disabled:opacity-50"
+          >
+            {isDeactivating ? (
+              <span className="flex items-center justify-center gap-2">
+                <span className="h-4 w-4 animate-spin rounded-full border-2 border-white/30 border-t-white" />
+                {t('promo.deactivate.deactivating')}
+              </span>
+            ) : (
+              t('promo.deactivate.confirm')
+            )}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+
+  if (typeof document !== 'undefined') {
+    return createPortal(modalContent, document.body);
+  }
+  return modalContent;
+}
+
+// ------- Main Component -------
+
 interface PromoOffersSectionProps {
   className?: string;
 }
 
 export default function PromoOffersSection({ className = '' }: PromoOffersSectionProps) {
   const { t } = useTranslation();
+  const navigate = useNavigate();
   const queryClient = useQueryClient();
+  const { isTelegramWebApp } = useTelegramSDK();
   const [claimingId, setClaimingId] = useState<number | null>(null);
   const [successMessage, setSuccessMessage] = useState<string | null>(null);
   const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [showConfirmModal, setShowConfirmModal] = useState(false);
 
   // Fetch available offers
   const { data: offers = [], isLoading: offersLoading } = useQuery({
@@ -112,6 +264,26 @@ export default function PromoOffersSection({ className = '' }: PromoOffersSectio
     },
   });
 
+  // Deactivate discount mutation
+  const deactivateMutation = useMutation({
+    mutationFn: promoApi.deactivateDiscount,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['active-discount'] });
+      queryClient.invalidateQueries({ queryKey: ['promo-offers'] });
+      queryClient.invalidateQueries({ queryKey: ['subscription'] });
+      queryClient.invalidateQueries({ queryKey: ['purchase-options'] });
+      setShowConfirmModal(false);
+      setSuccessMessage(t('promo.deactivate.success'));
+      setTimeout(() => setSuccessMessage(null), 5000);
+    },
+    onError: (error: unknown) => {
+      const axiosErr = error as { response?: { data?: { detail?: string } } };
+      setErrorMessage(axiosErr.response?.data?.detail || t('promo.deactivate.error'));
+      setShowConfirmModal(false);
+      setTimeout(() => setErrorMessage(null), 5000);
+    },
+  });
+
   const handleClaim = (offerId: number) => {
     setClaimingId(offerId);
     setErrorMessage(null);
@@ -119,6 +291,49 @@ export default function PromoOffersSection({ className = '' }: PromoOffersSectio
     claimMutation.mutate(offerId);
   };
 
+  const handleUseNow = () => {
+    navigate('/subscription', { state: { scrollToExtend: true } });
+  };
+
+  const handleDeactivateClick = () => {
+    setErrorMessage(null);
+    setSuccessMessage(null);
+
+    // Use Telegram native popup in Mini App
+    if (isTelegramWebApp && window.Telegram?.WebApp?.showPopup) {
+      window.Telegram.WebApp.showPopup(
+        {
+          title: t('promo.deactivate.confirmTitle'),
+          message: t('promo.deactivate.confirmDescription', {
+            percent: activeDiscount?.discount_percent || 0,
+          }),
+          buttons: [
+            { id: 'cancel', type: 'cancel' },
+            { id: 'confirm', type: 'destructive', text: t('promo.deactivate.confirm') },
+          ],
+        },
+        (button_id: string) => {
+          if (button_id === 'confirm') {
+            deactivateMutation.mutate();
+          }
+        },
+      );
+    } else {
+      // Fallback to modal for web
+      setShowConfirmModal(true);
+    }
+  };
+
+  const handleConfirmDeactivate = () => {
+    deactivateMutation.mutate();
+  };
+
+  const handleCloseConfirmModal = () => {
+    if (!deactivateMutation.isPending) {
+      setShowConfirmModal(false);
+    }
+  };
+
   // Filter unclaimed and active offers
   const availableOffers = offers.filter((o) => o.is_active && !o.is_claimed);
 
@@ -133,55 +348,59 @@ export default function PromoOffersSection({ className = '' }: PromoOffersSectio
 
   return (
     <div className={`space-y-4 ${className}`}>
-      {/* Active Discount Banner - clickable, navigates to subscription */}
+      {/* Active Discount Banner with actions */}
       {activeDiscount && activeDiscount.is_active && activeDiscount.discount_percent > 0 && (
-        <Link
-          to="/subscription"
-          state={{ scrollToExtend: true }}
-          className="card group block cursor-pointer border-success-500/30 bg-gradient-to-br from-success-500/10 to-accent-500/5 transition-all duration-200 hover:scale-[1.01] hover:border-success-500/50 hover:from-success-500/20 hover:to-accent-500/10 hover:shadow-lg hover:shadow-success-500/10 active:scale-[0.99]"
-        >
-          <div className="flex items-center gap-4">
-            <div className="flex h-12 w-12 flex-shrink-0 items-center justify-center rounded-xl bg-success-500/20 text-success-400 transition-transform duration-200 group-hover:scale-110">
-              <span className="text-2xl">🏷️</span>
-            </div>
-            <div className="min-w-0 flex-1">
-              <div className="mb-1 flex items-center gap-2">
-                <h3 className="font-semibold text-dark-100">
-                  {t('promo.offers.discountActiveTitle', {
-                    percent: activeDiscount.discount_percent,
-                  })}
-                </h3>
-                <span className="rounded bg-success-500/20 px-2 py-0.5 text-xs font-bold text-success-400">
-                  -{activeDiscount.discount_percent}%
-                </span>
+        <div className="card border-success-500/30 bg-gradient-to-br from-success-500/10 to-accent-500/5">
+          <div className="flex flex-col gap-4">
+            {/* Header */}
+            <div className="flex items-center gap-4">
+              <div className="flex h-12 w-12 flex-shrink-0 items-center justify-center rounded-xl bg-success-500/20 text-success-400">
+                <span className="text-2xl">🏷️</span>
               </div>
-              <div className="flex items-center gap-4 text-sm text-dark-400">
-                {activeDiscount.expires_at && (
-                  <div className="flex items-center gap-1">
-                    <ClockIcon />
-                    <span>
-                      {t('promo.offers.expires', {
-                        time: formatTimeLeft(activeDiscount.expires_at, t),
-                      })}
-                    </span>
-                  </div>
-                )}
+              <div className="min-w-0 flex-1">
+                <div className="mb-1 flex flex-wrap items-center gap-2">
+                  <h3 className="font-semibold text-dark-100">
+                    {t('promo.offers.discountActiveTitle', {
+                      percent: activeDiscount.discount_percent,
+                    })}
+                  </h3>
+                  <span className="rounded bg-success-500/20 px-2 py-0.5 text-xs font-bold text-success-400">
+                    -{activeDiscount.discount_percent}%
+                  </span>
+                </div>
+                <div className="flex items-center gap-4 text-sm text-dark-400">
+                  {activeDiscount.expires_at && (
+                    <div className="flex items-center gap-1">
+                      <ClockIcon />
+                      <span>
+                        {t('promo.offers.expires', {
+                          time: formatTimeLeft(activeDiscount.expires_at, t),
+                        })}
+                      </span>
+                    </div>
+                  )}
+                </div>
               </div>
             </div>
-            {/* Arrow indicator */}
-            <div className="flex-shrink-0 text-dark-500 transition-all duration-200 group-hover:translate-x-1 group-hover:text-success-400">
-              <svg
-                className="h-5 w-5"
-                fill="none"
-                viewBox="0 0 24 24"
-                stroke="currentColor"
-                strokeWidth={2}
+
+            {/* Action Buttons */}
+            <div className="flex flex-col gap-2 sm:flex-row">
+              <button
+                onClick={handleUseNow}
+                className="flex-1 rounded-xl bg-gradient-to-r from-success-500 to-success-600 px-4 py-2.5 font-semibold text-white shadow-lg shadow-success-500/25 transition-all hover:from-success-400 hover:to-success-500 active:from-success-600 active:to-success-700"
               >
-                <path strokeLinecap="round" strokeLinejoin="round" d="M8.25 4.5l7.5 7.5-7.5 7.5" />
-              </svg>
+                {t('promo.useNow')}
+              </button>
+              <button
+                onClick={handleDeactivateClick}
+                className="flex items-center justify-center gap-1.5 rounded-xl border border-dark-600/50 bg-dark-900/50 px-4 py-2.5 text-sm text-dark-400 transition-colors hover:border-red-500/30 hover:bg-red-500/10 hover:text-red-400"
+              >
+                <XCircleIcon />
+                <span>{t('promo.deactivate.button')}</span>
+              </button>
             </div>
           </div>
-        </Link>
+        </div>
       )}
 
       {/* Success/Error Messages */}
@@ -266,6 +485,17 @@ export default function PromoOffersSection({ className = '' }: PromoOffersSectio
           </div>
         </div>
       )}
+
+      {/* Deactivation Confirmation Modal */}
+      {activeDiscount && (
+        <DeactivateConfirmModal
+          isOpen={showConfirmModal}
+          discountPercent={activeDiscount.discount_percent || 0}
+          isDeactivating={deactivateMutation.isPending}
+          onConfirm={handleConfirmDeactivate}
+          onCancel={handleCloseConfirmModal}
+        />
+      )}
     </div>
   );
 }

src/pages/AdminPaymentMethods.tsx

@@ -4,10 +4,8 @@ import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useTranslation } from 'react-i18next';
 import {
   DndContext,
-  closestCenter,
   KeyboardSensor,
   PointerSensor,
-  TouchSensor,
   useSensor,
   useSensors,
   type DragEndEvent,
@@ -101,11 +99,11 @@ function SortablePaymentCard({ config, onClick }: SortableCardProps) {
     id: config.method_id,
   });
 
-  const style = {
+  const style: React.CSSProperties = {
     transform: CSS.Transform.toString(transform),
     transition,
     zIndex: isDragging ? 50 : undefined,
-    opacity: isDragging ? 0.85 : 1,
+    position: isDragging ? 'relative' : undefined,
   };
 
   const displayName = config.display_name || config.default_display_name;
@@ -140,19 +138,20 @@ function SortablePaymentCard({ config, onClick }: SortableCardProps) {
     <div
       ref={setNodeRef}
       style={style}
-      className={`group flex items-center gap-3 rounded-xl border p-4 transition-all ${
+      className={`group flex items-center gap-3 rounded-xl border p-4 ${
         isDragging
-          ? 'border-accent-500/50 bg-dark-700/80 shadow-xl shadow-accent-500/10'
+          ? 'border-accent-500/50 bg-dark-800 shadow-xl shadow-accent-500/20'
           : config.is_enabled
             ? 'border-dark-700/50 bg-dark-800/50 hover:border-dark-600'
             : 'border-dark-800/50 bg-dark-900/30 opacity-60'
       }`}
     >
       {/* Drag handle */}
+      {/* Drag handle - larger touch target for mobile */}
       <button
         {...attributes}
         {...listeners}
-        className="flex-shrink-0 cursor-grab touch-manipulation rounded-lg p-1.5 text-dark-500 hover:bg-dark-700/50 hover:text-dark-300 active:cursor-grabbing"
+        className="flex-shrink-0 cursor-grab touch-none rounded-lg p-2.5 text-dark-500 hover:bg-dark-700/50 hover:text-dark-300 active:cursor-grabbing sm:p-1.5"
         title={t('admin.paymentMethods.dragToReorder')}
       >
         <GripIcon />
@@ -267,10 +266,9 @@ export default function AdminPaymentMethods() {
     },
   });
 
-  // DnD sensors
+  // DnD sensors - PointerSensor handles both mouse and touch
   const sensors = useSensors(
-    useSensor(PointerSensor, { activationConstraint: { distance: 8 } }),
-    useSensor(TouchSensor, { activationConstraint: { delay: 200, tolerance: 5 } }),
+    useSensor(PointerSensor, { activationConstraint: { distance: 5 } }),
     useSensor(KeyboardSensor, { coordinateGetter: sortableKeyboardCoordinates }),
   );
 
@@ -362,7 +360,6 @@ export default function AdminPaymentMethods() {
         ) : methods.length > 0 ? (
           <DndContext
             sensors={sensors}
-            collisionDetection={closestCenter}
             onDragStart={handleDragStart}
             onDragEnd={handleDragEnd}
             onDragCancel={handleDragCancel}