import { useState, useMemo, useRef } from 'react';
import { useSeoMeta } from '@unhead/react';
import { useNavigate, Link } from 'react-router-dom';
import { Layout } from '@/components/Layout';
import { Card, CardContent } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { Textarea } from '@/components/ui/textarea';
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
import { Switch } from '@/components/ui/switch';
import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger, DialogFooter, DialogClose, DialogDescription } from '@/components/ui/dialog';
import {
  AlertDialog,
  AlertDialogAction,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogTitle,
} from '@/components/ui/alert-dialog';
import { Skeleton } from '@/components/ui/skeleton';
import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip';
import { LoginArea } from '@/components/auth/LoginArea';
import { ImageWithFallback } from '@/components/ImageWithFallback';
import { useStash, STASH_CATEGORIES, CONDITION_LABELS, RARITY_TIERS, type StashItem } from '@/hooks/useStash';
import { useStashShowcaseSync } from '@/hooks/useStashShowcase';
import { useCurrentUser } from '@/hooks/useCurrentUser';
import { useSatsToUsd } from '@/hooks/useExchangeRate';
import { useUploadFile } from '@/hooks/useUploadFile';
import {
  Package,
  Plus,
  Trash2,
  Edit3,
  Lock,
  Users,
  Globe,
  Zap,
  ArrowRightLeft,
  Shield,
  Star,
  Search,
  AlertTriangle,
  ShoppingCart,
  Heart,
  Backpack,
  Trophy,
  X,
  ImagePlus,
  Loader2,
  Store,
  MapPin,
  LayoutGrid,
  List,
} from 'lucide-react';
import { cn } from '@/lib/utils';

// ─── Rarity helpers ──────────────────────────────────────────────────────────
const RARITY_COLORS = {
  common: 'from-gray-500 to-gray-600',
  uncommon: 'from-green-500 to-emerald-600',
  rare: 'from-blue-500 to-indigo-600',
  epic: 'from-purple-500 to-violet-600',
  legendary: 'from-yellow-400 to-orange-500',
};
const RARITY_GLOW = {
  common: '',
  uncommon: 'shadow-[0_0_15px_rgba(34,197,94,0.3)]',
  rare: 'shadow-[0_0_20px_rgba(59,130,246,0.4)]',
  epic: 'shadow-[0_0_25px_rgba(168,85,247,0.5)]',
  legendary: 'shadow-[0_0_30px_rgba(250,204,21,0.6)] animate-pulse',
};
const RARITY_BORDER = {
  common: 'border-gray-500/40',
  uncommon: 'border-green-500/50',
  rare: 'border-blue-500/50',
  epic: 'border-purple-500/60',
  legendary: 'border-yellow-400/70',
};

// ─── List Row — mobile default ────────────────────────────────────────────────
function StashListRow({ item, onEdit, onDelete, onListOnMarketplace, isWTB = false }: {
  item: StashItem; onEdit: () => void; onDelete: () => void; onListOnMarketplace?: () => void; isWTB?: boolean;
}) {
  const category = STASH_CATEGORIES[item.category];
  const condition = CONDITION_LABELS[item.condition];
  const rarity = (item.rarity || category.rarity) as keyof typeof RARITY_COLORS;
  const rarityTier = RARITY_TIERS[rarity];
  const usdValue = useSatsToUsd(item.minPrice || item.maxPrice || 0);
  const canListOnMarketplace = !isWTB && (item.willingToSell || item.willingToTrade);

  return (
    <div className={cn(
      'relative flex items-center gap-3 p-3 rounded-xl border-2 bg-black/60 transition-all active:scale-[0.99]',
      RARITY_BORDER[rarity], RARITY_GLOW[rarity],
    )}>
      <div className={cn('absolute left-0 top-0 bottom-0 w-1 rounded-l-xl bg-gradient-to-b', RARITY_COLORS[rarity])} />
      <div className="w-14 h-14 flex-shrink-0 rounded-lg overflow-hidden bg-black/50 border border-white/10 flex items-center justify-center ml-1">
        {item.images?.[0] ? <ImageWithFallback src={item.images[0]} alt={item.title} className="w-full h-full object-cover" fallback={<span className="text-2xl">{category.emoji}</span>} /> : <span className="text-2xl">{category.emoji}</span>}
      </div>
      <div className="flex-1 min-w-0">
        <div className="flex items-center gap-1.5 mb-0.5">
          {isWTB && <Badge className="bg-cyan-500 text-black text-[9px] px-1 py-0 h-4 font-black">WTB</Badge>}
          <h3 className="font-bold text-sm text-white truncate leading-tight" style={{ textShadow: `0 0 8px ${rarityTier.color}30` }}>{item.title}</h3>
        </div>
        <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground flex-wrap">
          {item.brand && <span className="font-medium text-gray-300">{item.brand}</span>}
          {item.size && <span className="text-muted-foreground/60">• {item.size}</span>}
          {!isWTB && item.storageLocation && item.storageLocation !== 'other' && (
            <span className="text-[#ff6600]/80">• {{ home:'🏠',car:'🚗',skatepark:'🛹',warehouse:'🏭',storage_unit:'🔒',van:'🚐',friends:'👫',parents:'👨‍👩‍👦',wardrobe:'🚪',backpack:'🎒',sponsor:'🤝',other:'📦' }[item.storageLocation]}</span>
          )}
        </div>
        <div className="flex items-center gap-2 mt-1">
          {!isWTB && (
            <div className="flex items-center gap-0.5">
              {Array.from({ length: 5 }).map((_, i) => (
                <Star key={i} className={cn('h-2.5 w-2.5', i < condition.stars ? 'fill-yellow-400 text-yellow-400' : 'text-gray-500')} />
              ))}
            </div>
          )}
          {(item.minPrice || item.maxPrice) && (
            <span className="text-[11px] font-bold text-amber-400 flex items-center gap-0.5">
              <Zap className="h-3 w-3" />{(item.maxPrice || item.minPrice || 0).toLocaleString()}
              {usdValue && <span className="text-muted-foreground font-normal">(~${usdValue.toFixed(0)})</span>}
            </span>
          )}
        </div>
      </div>
      <div className="flex flex-col items-end gap-1.5 flex-shrink-0">
        <div>
          {item.visibility === 'private' && <Lock className="h-3.5 w-3.5 text-red-400/70" />}
          {item.visibility === 'friends' && <Users className="h-3.5 w-3.5 text-blue-400/70" />}
          {item.visibility === 'public' && <Globe className="h-3.5 w-3.5 text-green-400/70" />}
        </div>
        <div className="flex gap-1">
          {item.willingToTrade && <span className="text-[9px] font-bold text-cyan-400 border border-cyan-500/40 rounded px-1 py-0">↔</span>}
          {item.willingToSell && !isWTB && <span className="text-[9px] font-bold text-green-400 border border-green-500/40 rounded px-1 py-0">⚡</span>}
        </div>
        <div className="flex gap-1">
          <button onClick={(e) => { e.stopPropagation(); onEdit(); }} className="w-7 h-7 rounded-lg bg-white/5 hover:bg-white/15 flex items-center justify-center transition-colors touch-manipulation active:scale-90">
            <Edit3 className="h-3.5 w-3.5 text-gray-300" />
          </button>
          {canListOnMarketplace && onListOnMarketplace && (
            <button onClick={(e) => { e.stopPropagation(); onListOnMarketplace(); }} className="w-7 h-7 rounded-lg bg-[#ff6600]/20 hover:bg-[#ff6600]/40 flex items-center justify-center transition-colors touch-manipulation active:scale-90">
              <Store className="h-3.5 w-3.5 text-[#ff6600]" />
            </button>
          )}
          <button onClick={(e) => { e.stopPropagation(); onDelete(); }} className="w-7 h-7 rounded-lg bg-red-500/10 hover:bg-red-500/30 flex items-center justify-center transition-colors touch-manipulation active:scale-90">
            <Trash2 className="h-3.5 w-3.5 text-red-400" />
          </button>
        </div>
      </div>
    </div>
  );
}

// ─── Grid Card — desktop default ──────────────────────────────────────────────
function StashItemCard({ item, onEdit, onDelete, onListOnMarketplace, isWTB = false }: {
  item: StashItem; onEdit: () => void; onDelete: () => void; onListOnMarketplace?: () => void; isWTB?: boolean;
}) {
  const category = STASH_CATEGORIES[item.category];
  const condition = CONDITION_LABELS[item.condition];
  const rarity = (item.rarity || category.rarity) as keyof typeof RARITY_COLORS;
  const usdValue = useSatsToUsd(item.minPrice || item.maxPrice || 0);
  const rarityTier = RARITY_TIERS[rarity];
  const canListOnMarketplace = !isWTB && (item.willingToSell || item.willingToTrade);

  return (
    <Card className={cn('relative overflow-hidden transition-all duration-300 hover:scale-[1.02] hover:-translate-y-0.5 cursor-pointer group bg-gradient-to-br from-black/90 to-black/70 border-2', RARITY_GLOW[rarity], RARITY_BORDER[rarity], isWTB && 'ring-2 ring-cyan-500/30')}>
      <div className={cn('absolute top-0 left-0 right-0 h-1.5 bg-gradient-to-r', RARITY_COLORS[rarity])}>
        {rarity !== 'common' && <div className="absolute inset-0 bg-gradient-to-r from-transparent via-white/30 to-transparent animate-shimmer" />}
      </div>
      {isWTB && (
        <div className="absolute top-3 left-2 z-10">
          <Badge className="bg-cyan-500 text-black text-[10px] font-black uppercase"><Heart className="h-2.5 w-2.5 mr-0.5" />Wishlist</Badge>
        </div>
      )}
      <div className="absolute top-3 right-2 z-10">
        <Badge variant="outline" className="text-[9px] px-1.5 py-0.5 backdrop-blur-sm font-bold uppercase tracking-wider"
          style={{ borderColor: rarityTier.color, color: rarityTier.color, backgroundColor: rarityTier.color + '15' }}>
          {rarityTier.label}
        </Badge>
      </div>
      <div className="h-40 bg-gradient-to-br from-black/50 to-black/30 flex items-center justify-center relative overflow-hidden">
        <div className={cn('absolute inset-2 rounded-lg border-2 opacity-20', RARITY_BORDER[rarity])} />
        {item.images?.[0] ? (
          <ImageWithFallback src={item.images[0]} alt={item.title} className="w-full h-full object-cover" />
        ) : (
          <div className="flex flex-col items-center gap-2">
            <span className="text-5xl">{category.emoji}</span>
            <span className="text-[10px] uppercase tracking-wider text-muted-foreground">{category.label}</span>
          </div>
        )}
        <div className="absolute inset-0 bg-black/85 transition-all duration-200 flex flex-col items-center justify-center gap-2 backdrop-blur-sm opacity-100 md:opacity-0 md:group-hover:opacity-100 md:group-focus-within:opacity-100">
          <div className="flex items-center gap-2">
            <Button size="sm" variant="outline" className="h-8 border-white/30" onClick={(e) => { e.stopPropagation(); onEdit(); }}>
              <Edit3 className="h-3.5 w-3.5 mr-1" />Edit
            </Button>
            <Button size="sm" variant="destructive" className="h-8" onClick={(e) => { e.stopPropagation(); onDelete(); }}>
              <Trash2 className="h-3.5 w-3.5" />
            </Button>
          </div>
          {canListOnMarketplace && onListOnMarketplace && (
            <Button size="sm" className="h-8 bg-[#ff6600] hover:bg-[#ff6600]/90 text-black font-bold"
              onClick={(e) => { e.stopPropagation(); onListOnMarketplace(); }}>
              <Store className="h-3 w-3 mr-1" />List on Marketplace
            </Button>
          )}
        </div>
      </div>
      <CardContent className="p-3 space-y-2">
        <div>
          <h3 className="font-bold text-sm text-white line-clamp-1" style={{ textShadow: `0 0 10px ${rarityTier.color}40` }}>{item.title}</h3>
          <p className="text-xs text-muted-foreground flex items-center gap-1">
            <span>{category.emoji}</span>
            {item.brand && <span className="font-medium">{item.brand}</span>}
            {item.size && <span className="text-muted-foreground/60">• {item.size}</span>}
          </p>
        </div>
        {!isWTB && item.storageLocation && item.storageLocation !== 'other' && (
          <span className="inline-block text-[10px] px-1.5 py-0.5 rounded-full border border-[#ff6600]/30 text-[#ff6600] font-bold uppercase tracking-wide">
            {{ home:'🏠 Home',car:'🚗 Car',skatepark:'🛹 Skatepark',warehouse:'🏭 Warehouse',storage_unit:'🔒 Storage Unit',van:'🚐 Van',friends:"👫 Friend's",parents:"👨‍👩‍👦 Parents'",wardrobe:'🚪 Wardrobe',backpack:'🎒 Backpack',sponsor:'🤝 Sponsor',other:'📦 Other' }[item.storageLocation]}
          </span>
        )}
        {!isWTB && (
          <div className="flex items-center gap-1">
            {Array.from({ length: 5 }).map((_, i) => (
              <Star key={i} className={cn('h-3 w-3', i < condition.stars ? 'fill-yellow-400 text-yellow-400 drop-shadow-[0_0_4px_rgba(250,204,21,0.5)]' : 'text-gray-500')} />
            ))}
            <span className="text-[10px] ml-1 font-medium" style={{ color: condition.color }}>{condition.label.split(' ')[1]}</span>
          </div>
        )}
        <div className="flex items-center justify-between pt-1.5 border-t border-white/8">
          {(item.minPrice || item.maxPrice) ? (
            <div className="flex items-center gap-1">
              <Zap className="h-3.5 w-3.5 text-amber-400" />
              <span className="font-bold text-sm text-amber-400">{isWTB ? 'Up to ' : ''}{(item.maxPrice || item.minPrice || 0).toLocaleString()}</span>
              <span className="text-[10px] text-muted-foreground">sats</span>
              {usdValue && <span className="text-[10px] text-muted-foreground">(~${usdValue.toFixed(0)})</span>}
            </div>
          ) : (
            <span className="text-xs text-gray-500">No price set</span>
          )}
          <div className="flex items-center gap-1">
            {item.visibility === 'private' && <Tooltip><TooltipTrigger><Lock className="h-3.5 w-3.5 text-red-400/60" /></TooltipTrigger><TooltipContent>Private</TooltipContent></Tooltip>}
            {item.visibility === 'friends' && <Tooltip><TooltipTrigger><Users className="h-3.5 w-3.5 text-blue-400/60" /></TooltipTrigger><TooltipContent>Friends only</TooltipContent></Tooltip>}
            {item.willingToTrade && <Badge variant="outline" className="text-[9px] h-5 px-1 border-cyan-500/40 text-cyan-400"><ArrowRightLeft className="h-2.5 w-2.5" /></Badge>}
            {item.willingToSell && !isWTB && <Badge variant="outline" className="text-[9px] h-5 px-1 border-green-500/40 text-green-400"><Zap className="h-2.5 w-2.5" /></Badge>}
          </div>
        </div>
      </CardContent>
    </Card>
  );
}

// ─── Add Item Dialog ──────────────────────────────────────────────────────────
function AddItemDialog({ onAdd, mode = 'stash', trigger }: { onAdd: (item: Omit<StashItem, 'id' | 'addedAt'>) => void; mode?: 'stash' | 'wtb'; trigger?: React.ReactNode }) {
  const [open, setOpen] = useState(false);
  const isWTB = mode === 'wtb';
  const fileInputRef = useRef<HTMLInputElement>(null);
  const { mutateAsync: uploadFile, isPending: isUploading } = useUploadFile();
  const [formData, setFormData] = useState<Partial<StashItem>>({ category: 'deck', condition: 'good', visibility: 'private', willingToSell: !isWTB, willingToTrade: false, itemType: isWTB ? 'wtb' : 'stash', images: [] });

  const handleImageUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
    const files = e.target.files;
    if (!files || files.length === 0) return;
    try {
      const newImages: string[] = [...(formData.images || [])];
      for (const file of Array.from(files)) {
        const tags = await uploadFile(file);
        const urlTag = tags.find(t => t[0] === 'url');
        if (urlTag) newImages.push(urlTag[1]);
      }
      setFormData({ ...formData, images: newImages });
    } catch { /* ignore */ }
    if (fileInputRef.current) fileInputRef.current.value = '';
  };

  const removeImage = (index: number) => {
    const imgs = [...(formData.images || [])];
    imgs.splice(index, 1);
    setFormData({ ...formData, images: imgs });
  };

  const handleSubmit = () => {
    if (!formData.title || !formData.category) return;
    if (!isWTB && !formData.condition) return;
    onAdd({
      title: formData.title, category: formData.category as StashItem['category'],
      condition: isWTB ? 'good' : (formData.condition as StashItem['condition']),
      visibility: formData.visibility || 'private', size: formData.size, brand: formData.brand,
      description: formData.description, minPrice: isWTB ? undefined : formData.minPrice,
      maxPrice: isWTB ? formData.maxPrice : undefined, willingToSell: isWTB ? false : formData.willingToSell,
      willingToTrade: formData.willingToTrade, images: formData.images,
      itemType: isWTB ? 'wtb' : 'stash', storageLocation: isWTB ? undefined : formData.storageLocation,
    });
    setFormData({ category: 'deck', condition: 'good', visibility: 'private', willingToSell: !isWTB, willingToTrade: false, itemType: isWTB ? 'wtb' : 'stash', images: [] });
    setOpen(false);
  };

  const defaultTrigger = isWTB ? (
    <Button variant="outline" className="gap-2 border-cyan-500/50 text-cyan-400 hover:bg-cyan-500/10"><Heart className="h-4 w-4" />Add to Wishlist</Button>
  ) : (
    <Button className="gap-2 bg-gradient-to-r from-[#ff0040] to-[#ff6600] hover:opacity-90 border-0 shadow-lg shadow-[#ff0040]/20"><Plus className="h-4 w-4" />Add to Stash</Button>
  );

  return (
    <Dialog open={open} onOpenChange={setOpen}>
      <DialogTrigger asChild>{trigger ?? defaultTrigger}</DialogTrigger>
      <DialogContent className="max-w-lg max-h-[90vh] overflow-y-auto bg-black/95 border-2 border-[#ff6600]/40">
        <DialogHeader>
          <DialogTitle className="flex items-center gap-2 text-white">
            {isWTB ? <><Heart className="h-5 w-5 text-cyan-400" />Add to Wishlist</> : <><Package className="h-5 w-5 text-[#ff6600]" />Add Item to Stash</>}
          </DialogTitle>
          <DialogDescription className="text-muted-foreground">
            {isWTB ? "Add items you're looking for." : "Add gear to your encrypted private inventory."}
          </DialogDescription>
        </DialogHeader>
        <div className="space-y-4 py-4">
          <div className="space-y-2">
            <Label>{isWTB ? 'Looking for...' : 'Item Name'} *</Label>
            <Input placeholder={isWTB ? "e.g. Any 8.0-8.25 deck" : "e.g. Powell Peralta Flight Deck 8.25"} value={formData.title || ''} onChange={(e) => setFormData({ ...formData, title: e.target.value })} className="bg-black/50 border-white/20" />
          </div>
          <div className="grid grid-cols-2 gap-4">
            <div className="space-y-2">
              <Label>Category *</Label>
              <Select value={formData.category} onValueChange={(v) => setFormData({ ...formData, category: v as StashItem['category'] })}>
                <SelectTrigger className="bg-black/50 border-white/20"><SelectValue /></SelectTrigger>
                <SelectContent>{Object.entries(STASH_CATEGORIES).map(([key, cat]) => <SelectItem key={key} value={key}>{cat.emoji} {cat.label}</SelectItem>)}</SelectContent>
              </Select>
            </div>
            <div className="space-y-2">
              <Label>{isWTB ? 'Min. Condition' : 'Condition'} *</Label>
              <Select value={formData.condition} onValueChange={(v) => setFormData({ ...formData, condition: v as StashItem['condition'] })}>
                <SelectTrigger className="bg-black/50 border-white/20"><SelectValue /></SelectTrigger>
                <SelectContent>{Object.entries(CONDITION_LABELS).map(([key, cond]) => <SelectItem key={key} value={key}>{isWTB ? cond.label + ' or better' : cond.label}</SelectItem>)}</SelectContent>
              </Select>
            </div>
          </div>
          <div className="grid grid-cols-2 gap-4">
            <div className="space-y-2">
              <Label>{isWTB ? 'Preferred Brand' : 'Brand'}</Label>
              <Input placeholder={isWTB ? "Any or specific" : "e.g. Powell, Spitfire"} value={formData.brand || ''} onChange={(e) => setFormData({ ...formData, brand: e.target.value })} className="bg-black/50 border-white/20" />
            </div>
            <div className="space-y-2">
              <Label>{isWTB ? 'Size Range' : 'Size'}</Label>
              <Input placeholder={isWTB ? "e.g. 8.0-8.25" : "e.g. 8.25, 52mm"} value={formData.size || ''} onChange={(e) => setFormData({ ...formData, size: e.target.value })} className="bg-black/50 border-white/20" />
            </div>
          </div>
          <div className="space-y-2">
            <Label>{isWTB ? 'Additional Notes' : 'Description'}</Label>
            <Textarea placeholder={isWTB ? "Any specific requirements..." : "Describe the item, any damage..."} value={formData.description || ''} onChange={(e) => setFormData({ ...formData, description: e.target.value })} rows={3} className="bg-black/50 border-white/20" />
          </div>
          {!isWTB && (
            <div className="space-y-2">
              <Label>Photos</Label>
              <div className="space-y-3">
                {formData.images && formData.images.length > 0 && (
                  <div className="grid grid-cols-3 gap-2">
                    {formData.images.map((url, index) => (
                      <div key={index} className="relative aspect-square rounded-lg overflow-hidden border border-white/20 group">
                        <img src={url} alt={`Photo ${index + 1}`} className="w-full h-full object-cover" />
                        <button type="button" onClick={() => removeImage(index)} className="absolute top-1 right-1 p-1 rounded-full bg-black/80 text-white opacity-0 group-hover:opacity-100 transition-opacity hover:bg-red-500"><X className="h-3 w-3" /></button>
                      </div>
                    ))}
                  </div>
                )}
                <input ref={fileInputRef} type="file" accept="image/*" multiple onChange={handleImageUpload} className="hidden" />
                <Button type="button" variant="outline" className="w-full border-dashed border-white/30 hover:border-[#ff6600]/50 hover:bg-[#ff6600]/5" onClick={() => fileInputRef.current?.click()} disabled={isUploading}>
                  {isUploading ? <><Loader2 className="h-4 w-4 mr-2 animate-spin" />Uploading...</> : <><ImagePlus className="h-4 w-4 mr-2" />Add Photos</>}
                </Button>
              </div>
            </div>
          )}
          <div className="space-y-2">
            <Label>{isWTB ? 'Max Budget (sats)' : 'Minimum Price (sats)'}</Label>
            <Input type="number" placeholder={isWTB ? "e.g. 100000" : "e.g. 50000"} value={isWTB ? (formData.maxPrice || '') : (formData.minPrice || '')} onChange={(e) => setFormData({ ...formData, [isWTB ? 'maxPrice' : 'minPrice']: parseInt(e.target.value) || undefined })} className="bg-black/50 border-white/20" />
          </div>
          <div className="space-y-3">
            {!isWTB && (
              <div className="flex items-center justify-between p-3 rounded-lg bg-green-500/10 border border-green-500/30">
                <div className="flex items-center gap-2"><Zap className="h-4 w-4 text-green-400" /><Label>Willing to Sell</Label></div>
                <Switch checked={formData.willingToSell} onCheckedChange={(v) => setFormData({ ...formData, willingToSell: v })} />
              </div>
            )}
            <div className="flex items-center justify-between p-3 rounded-lg bg-cyan-500/10 border border-cyan-500/30">
              <div className="flex items-center gap-2"><ArrowRightLeft className="h-4 w-4 text-cyan-400" /><Label>{isWTB ? 'Open to Trade' : 'Willing to Trade'}</Label></div>
              <Switch checked={formData.willingToTrade} onCheckedChange={(v) => setFormData({ ...formData, willingToTrade: v })} />
            </div>
          </div>
          {!isWTB && (
            <div className="space-y-2">
              <Label className="flex items-center gap-2"><MapPin className="h-4 w-4 text-[#ff6600]" />Where is this item?</Label>
              <div className="grid grid-cols-3 gap-2">
                {([ { value: 'home', label: '🏠 Home' }, { value: 'car', label: '🚗 Car' }, { value: 'backpack', label: '🎒 Backpack' }, { value: 'wardrobe', label: '🚪 Wardrobe' }, { value: 'van', label: '🚐 Van' }, { value: 'skatepark', label: '🛹 Skatepark' }, { value: 'friends', label: "👫 Friend's" }, { value: 'parents', label: "👨‍👩‍👦 Parents'" }, { value: 'warehouse', label: '🏭 Warehouse' }, { value: 'storage_unit', label: '🔒 Storage Unit' }, { value: 'sponsor', label: '🤝 Sponsor' }, { value: 'other', label: '📦 Other' }, ] as const).map(({ value, label }) => (
                  <button key={value} type="button" onClick={() => setFormData({ ...formData, storageLocation: value })}
                    className={cn('p-2 rounded-lg text-xs font-bold text-center transition-all border', formData.storageLocation === value ? 'bg-[#ff6600] border-[#ff6600] text-black' : 'bg-black/40 border-white/10 text-gray-400 hover:border-[#ff6600]/50 hover:text-white')}>
                    {label}
                  </button>
                ))}
              </div>
            </div>
          )}
          <div className="space-y-2">
            <Label>Visibility</Label>
            <Select value={formData.visibility} onValueChange={(v) => setFormData({ ...formData, visibility: v as StashItem['visibility'] })}>
              <SelectTrigger className="bg-black/50 border-white/20"><SelectValue /></SelectTrigger>
              <SelectContent>
                <SelectItem value="private"><div className="flex items-center gap-2"><Lock className="h-3.5 w-3.5 text-red-400" /><span>Private - Only you</span></div></SelectItem>
                <SelectItem value="friends"><div className="flex items-center gap-2"><Users className="h-3.5 w-3.5 text-blue-400" /><span>Friends - Mutual follows</span></div></SelectItem>
                <SelectItem value="public"><div className="flex items-center gap-2"><Globe className="h-3.5 w-3.5 text-green-400" /><span>Public - Anyone</span></div></SelectItem>
              </SelectContent>
            </Select>
            <p className="text-xs text-muted-foreground">
              {formData.visibility === 'private' && 'Encrypted — only visible to you.'}
              {formData.visibility === 'friends' && 'Kept private for now (friends-only sharing coming soon).'}
              {formData.visibility === 'public' && 'Shown in your public Stash on your profile. If it\u2019s also for sale/trade, it appears in the marketplace too.'}
            </p>
          </div>
        </div>
        <DialogFooter>
          <DialogClose asChild><Button variant="outline" className="border-white/20">Cancel</Button></DialogClose>
          <Button onClick={handleSubmit} disabled={!formData.title || isUploading} className={cn(isWTB ? "bg-cyan-500 hover:bg-cyan-600 text-black" : "bg-[#ff6600] hover:bg-[#ff6600]/90")}>
            {isWTB ? <><Heart className="h-4 w-4 mr-2" />Add to Wishlist</> : <><Plus className="h-4 w-4 mr-2" />Add Item</>}
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}

// ─── Edit Item Dialog ─────────────────────────────────────────────────────────
function EditItemDialog({ item, open, onOpenChange, onSave }: { item: StashItem; open: boolean; onOpenChange: (open: boolean) => void; onSave: (item: StashItem) => void }) {
  const fileInputRef = useRef<HTMLInputElement>(null);
  const { mutateAsync: uploadFile, isPending: isUploading } = useUploadFile();
  const isWTB = item.itemType === 'wtb';
  const [formData, setFormData] = useState<StashItem>({ ...item });
  useState(() => { setFormData({ ...item }); });

  const handleImageUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
    const files = e.target.files;
    if (!files || files.length === 0) return;
    try {
      const newImages: string[] = [...(formData.images || [])];
      for (const file of Array.from(files)) {
        const tags = await uploadFile(file);
        const urlTag = tags.find(t => t[0] === 'url');
        if (urlTag) newImages.push(urlTag[1]);
      }
      setFormData({ ...formData, images: newImages });
    } catch { /* ignore */ }
    if (fileInputRef.current) fileInputRef.current.value = '';
  };

  const removeImage = (index: number) => {
    const imgs = [...(formData.images || [])];
    imgs.splice(index, 1);
    setFormData({ ...formData, images: imgs });
  };

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="max-w-lg max-h-[90vh] overflow-y-auto bg-black/95 border-2 border-[#ff6600]/40">
        <DialogHeader>
          <DialogTitle className="flex items-center gap-2 text-white"><Edit3 className="h-5 w-5 text-[#ff6600]" />Edit Item</DialogTitle>
        </DialogHeader>
        <div className="space-y-4 py-4">
          <div className="space-y-2">
            <Label>Item Name *</Label>
            <Input value={formData.title || ''} onChange={(e) => setFormData({ ...formData, title: e.target.value })} className="bg-black/50 border-white/20" />
          </div>
          <div className="grid grid-cols-2 gap-4">
            <div className="space-y-2">
              <Label>Category *</Label>
              <Select value={formData.category} onValueChange={(v) => setFormData({ ...formData, category: v as StashItem['category'] })}>
                <SelectTrigger className="bg-black/50 border-white/20"><SelectValue /></SelectTrigger>
                <SelectContent>{Object.entries(STASH_CATEGORIES).map(([key, cat]) => <SelectItem key={key} value={key}>{cat.emoji} {cat.label}</SelectItem>)}</SelectContent>
              </Select>
            </div>
            <div className="space-y-2">
              <Label>Condition</Label>
              <Select value={formData.condition} onValueChange={(v) => setFormData({ ...formData, condition: v as StashItem['condition'] })}>
                <SelectTrigger className="bg-black/50 border-white/20"><SelectValue /></SelectTrigger>
                <SelectContent>{Object.entries(CONDITION_LABELS).map(([key, cond]) => <SelectItem key={key} value={key}>{cond.label}</SelectItem>)}</SelectContent>
              </Select>
            </div>
          </div>
          <div className="grid grid-cols-2 gap-4">
            <div className="space-y-2"><Label>Brand</Label><Input value={formData.brand || ''} onChange={(e) => setFormData({ ...formData, brand: e.target.value })} className="bg-black/50 border-white/20" /></div>
            <div className="space-y-2"><Label>Size</Label><Input value={formData.size || ''} onChange={(e) => setFormData({ ...formData, size: e.target.value })} className="bg-black/50 border-white/20" /></div>
          </div>
          <div className="space-y-2">
            <Label>Description</Label>
            <Textarea value={formData.description || ''} onChange={(e) => setFormData({ ...formData, description: e.target.value })} rows={3} className="bg-black/50 border-white/20" />
          </div>
          {!isWTB && (
            <div className="space-y-2">
              <Label>Photos</Label>
              <div className="space-y-3">
                {formData.images && formData.images.length > 0 && (
                  <div className="grid grid-cols-3 gap-2">
                    {formData.images.map((url, index) => (
                      <div key={index} className="relative aspect-square rounded-lg overflow-hidden border border-white/20 group">
                        <img src={url} alt={`Photo ${index + 1}`} className="w-full h-full object-cover" />
                        <button type="button" onClick={() => removeImage(index)} className="absolute top-1 right-1 p-1 rounded-full bg-black/80 text-white opacity-0 group-hover:opacity-100 transition-opacity hover:bg-red-500"><X className="h-3 w-3" /></button>
                      </div>
                    ))}
                  </div>
                )}
                <input ref={fileInputRef} type="file" accept="image/*" multiple onChange={handleImageUpload} className="hidden" />
                <Button type="button" variant="outline" className="w-full border-dashed border-white/30" onClick={() => fileInputRef.current?.click()} disabled={isUploading}>
                  {isUploading ? <><Loader2 className="h-4 w-4 mr-2 animate-spin" />Uploading...</> : <><ImagePlus className="h-4 w-4 mr-2" />Add Photos</>}
                </Button>
              </div>
            </div>
          )}
          <div className="space-y-2">
            <Label>{isWTB ? 'Max Budget (sats)' : 'Minimum Price (sats)'}</Label>
            <Input type="number" value={isWTB ? (formData.maxPrice || '') : (formData.minPrice || '')} onChange={(e) => setFormData({ ...formData, [isWTB ? 'maxPrice' : 'minPrice']: parseInt(e.target.value) || undefined })} className="bg-black/50 border-white/20" />
          </div>
          <div className="space-y-3">
            {!isWTB && (
              <div className="flex items-center justify-between p-3 rounded-lg bg-green-500/10 border border-green-500/30">
                <div className="flex items-center gap-2"><Zap className="h-4 w-4 text-green-400" /><Label>Willing to Sell</Label></div>
                <Switch checked={formData.willingToSell} onCheckedChange={(v) => setFormData({ ...formData, willingToSell: v })} />
              </div>
            )}
            <div className="flex items-center justify-between p-3 rounded-lg bg-cyan-500/10 border border-cyan-500/30">
              <div className="flex items-center gap-2"><ArrowRightLeft className="h-4 w-4 text-cyan-400" /><Label>Willing to Trade</Label></div>
              <Switch checked={formData.willingToTrade} onCheckedChange={(v) => setFormData({ ...formData, willingToTrade: v })} />
            </div>
          </div>
          <div className="space-y-2">
            <Label>Visibility</Label>
            <Select value={formData.visibility} onValueChange={(v) => setFormData({ ...formData, visibility: v as StashItem['visibility'] })}>
              <SelectTrigger className="bg-black/50 border-white/20"><SelectValue /></SelectTrigger>
              <SelectContent>
                <SelectItem value="private"><div className="flex items-center gap-2"><Lock className="h-3.5 w-3.5 text-red-400" /><span>Private</span></div></SelectItem>
                <SelectItem value="friends"><div className="flex items-center gap-2"><Users className="h-3.5 w-3.5 text-blue-400" /><span>Friends</span></div></SelectItem>
                <SelectItem value="public"><div className="flex items-center gap-2"><Globe className="h-3.5 w-3.5 text-green-400" /><span>Public</span></div></SelectItem>
              </SelectContent>
            </Select>
            <p className="text-xs text-muted-foreground">
              {formData.visibility === 'private' && 'Encrypted — only visible to you.'}
              {formData.visibility === 'friends' && 'Kept private for now (friends-only sharing coming soon).'}
              {formData.visibility === 'public' && 'Shown in your public Stash on your profile. If it\u2019s also for sale/trade, it appears in the marketplace too.'}
            </p>
          </div>
        </div>
        <DialogFooter>
          <DialogClose asChild><Button variant="outline" className="border-white/20">Cancel</Button></DialogClose>
          <Button onClick={() => { if (!formData.title || !formData.category) return; onSave(formData); onOpenChange(false); }} disabled={!formData.title || isUploading} className="bg-[#ff6600] hover:bg-[#ff6600]/90">
            <Edit3 className="h-4 w-4 mr-2" />Save Changes
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}

// ─── List at Spot Dialog ──────────────────────────────────────────────────────
function ListAtSpotDialog({ item, open, onOpenChange, onSelectSpot }: {
  item: StashItem; open: boolean; onOpenChange: (open: boolean) => void; onSelectSpot: (spotId: string | null) => void;
}) {
  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="max-w-md bg-black/95 border-2 border-[#ff6600]/40">
        <DialogHeader>
          <DialogTitle className="flex items-center gap-2 text-white"><Store className="h-5 w-5 text-[#ff6600]" />List "{item.title}"</DialogTitle>
          <DialogDescription className="text-muted-foreground">Where can buyers pick up this item?</DialogDescription>
        </DialogHeader>
        <div className="py-4 space-y-4">
          <div className="space-y-3">
            <Button variant="outline" className="w-full justify-start h-auto py-4 border-[#ff6600]/50 hover:bg-[#ff6600]/10 hover:border-[#ff6600]" onClick={() => onSelectSpot('pick')}>
              <MapPin className="h-6 w-6 mr-3 text-[#ff6600]" />
              <div className="text-left flex-1"><div className="font-bold text-white">Link to a Skate Spot</div><div className="text-xs text-muted-foreground">Best for local sales • Shows on spot page & map</div></div>
              <Badge className="bg-[#ff6600]/20 text-[#ff6600] border-[#ff6600]/50">Recommended</Badge>
            </Button>
            <Button variant="outline" className="w-full justify-start h-auto py-4 border-gray-600 hover:bg-gray-800" onClick={() => onSelectSpot(null)}>
              <Globe className="h-6 w-6 mr-3 text-gray-400" />
              <div className="text-left"><div className="font-bold text-white">No Specific Spot</div><div className="text-xs text-muted-foreground">Visible on Marketplace page only</div></div>
            </Button>
          </div>
          <div className="p-3 rounded-lg bg-blue-500/10 border border-blue-500/30 text-xs">
            <p className="text-blue-300"><strong>💡 Tip:</strong> Listings linked to spots are easier to find for local skaters.</p>
          </div>
        </div>
      </DialogContent>
    </Dialog>
  );
}

// ─── Main Page ────────────────────────────────────────────────────────────────
export default function StashPage() {
  useSeoMeta({
    title: 'My Stash - SkateSpots',
    description: 'Manage your private gear inventory. Track what you own, what you want to sell or trade.',
  });

  const navigate = useNavigate();
  const { user } = useCurrentUser();
  const { items, stats, isLoading, addItem, updateItem, removeItem, isEncryptionAvailable } = useStash();
  const { syncItem: syncShowcase, unpublishItem: unpublishShowcase } = useStashShowcaseSync();

  // Add: save to encrypted stash, then publish a public event if it's public.
  const handleAddItem = (item: Omit<StashItem, 'id' | 'addedAt'>) => {
    addItem.mutate(item, {
      onSuccess: (created) => {
        if (created.visibility === 'public' && created.itemType !== 'wtb') {
          syncShowcase(created).catch(() => {});
        }
      },
    });
  };

  // Edit: update the encrypted stash, then reconcile the public event.
  const handleUpdateItem = (updated: StashItem) => {
    const previous = items.find((i) => i.id === updated.id);
    updateItem.mutate(updated, {
      onSuccess: () => {
        const wasPublic = previous?.visibility === 'public';
        const isPublic = updated.visibility === 'public' && updated.itemType !== 'wtb';
        if (isPublic) {
          syncShowcase(updated).catch(() => {});
        } else if (wasPublic) {
          // No longer public → pull the public event down.
          unpublishShowcase(updated.id).catch(() => {});
        }
      },
    });
  };

  // Remove: confirm first (deleting gear is destructive and, with Amber, costs a
  // signer prompt), then delete from the encrypted stash and clean up any public
  // event. `handleRemoveItem` just opens the confirm; `confirmRemoveItem` commits.
  const [pendingDeleteId, setPendingDeleteId] = useState<string | null>(null);
  const pendingDeleteItem = pendingDeleteId
    ? items.find((i) => i.id === pendingDeleteId) ?? null
    : null;

  const handleRemoveItem = (itemId: string) => {
    setPendingDeleteId(itemId);
  };

  const confirmRemoveItem = () => {
    if (!pendingDeleteId) return;
    const itemId = pendingDeleteId;
    const target = items.find((i) => i.id === itemId);
    removeItem.mutate(itemId, {
      onSuccess: () => {
        if (target?.visibility === 'public') {
          unpublishShowcase(itemId).catch(() => {});
        }
      },
    });
    setPendingDeleteId(null);
  };
  const [searchQuery, setSearchQuery] = useState('');
  const [filterCategory, setFilterCategory] = useState<string>('all');
  const [filterLocation, setFilterLocation] = useState<string>('all');
  const [activeTab, setActiveTab] = useState<'stash' | 'wishlist'>('stash');
  // Grid default on desktop, list on mobile
  const [viewMode, setViewMode] = useState<'list' | 'grid'>(() =>
    typeof window !== 'undefined' && window.innerWidth >= 1024 ? 'grid' : 'list'
  );
  const [editingItem, setEditingItem] = useState<StashItem | null>(null);
  const [listingItem, setListingItem] = useState<StashItem | null>(null);

  const handleListOnMarketplace = (item: StashItem, spotChoice: string | null) => {
    const params = new URLSearchParams();
    params.set('fromStash', 'true'); params.set('stashId', item.id); params.set('title', item.title);
    params.set('category', item.category); params.set('condition', item.condition);
    if (item.size) params.set('size', item.size);
    if (item.brand) params.set('brand', item.brand);
    if (item.description) params.set('description', item.description);
    if (item.minPrice) params.set('price', item.minPrice.toString());
    if (item.images && item.images.length > 0) params.set('images', item.images.join(','));
    if (item.willingToTrade && !item.willingToSell) params.set('priceType', 'trade');
    else if (item.willingToSell) params.set('priceType', 'fixed');
    if (spotChoice === 'pick') params.set('pickSpot', 'true');
    navigate(`/create-listing?${params.toString()}`);
  };

  const handleSpotSelection = (spotChoice: string | null) => {
    if (listingItem) { handleListOnMarketplace(listingItem, spotChoice); setListingItem(null); }
  };

  const stashItems = useMemo(() => items.filter(i => i.itemType !== 'wtb'), [items]);
  const wishlistItems = useMemo(() => items.filter(i => i.itemType === 'wtb'), [items]);
  const displayItems = activeTab === 'stash' ? stashItems : wishlistItems;

  const filteredItems = displayItems.filter(item => {
    if (searchQuery) {
      const q = searchQuery.toLowerCase();
      if (!item.title.toLowerCase().includes(q) && !item.brand?.toLowerCase().includes(q) && !item.description?.toLowerCase().includes(q)) return false;
    }
    if (filterCategory !== 'all' && item.category !== filterCategory) return false;
    if (filterLocation !== 'all' && item.storageLocation !== filterLocation) return false;
    return true;
  });

  const hasForSale = stashItems.filter(i => i.willingToSell || i.willingToTrade).length;
  const activeCategoryChips = Object.entries(STASH_CATEGORIES).filter(([key]) => displayItems.some(i => i.category === key));
  const showCategoryChips = activeCategoryChips.length > 1;

  // ── Not logged in ──
  if (!user) {
    return (
      <Layout>
        <div className="container px-4 py-12 max-w-4xl">
          <div className="relative overflow-hidden rounded-2xl border-2 border-[#ff6600]/50 bg-black/50 backdrop-blur">
            <div className="absolute top-0 right-0 w-64 h-64 bg-[#ff6600] opacity-10 rounded-full blur-[80px]" />
            <div className="absolute bottom-0 left-0 w-48 h-48 bg-[#ff0040] opacity-10 rounded-full blur-[60px]" />
            <div className="relative py-16 px-6 text-center">
              <div className="inline-flex items-center justify-center w-24 h-24 rounded-2xl bg-gradient-to-br from-[#ff6600] to-[#ff0040] mb-6 shadow-[0_0_40px_rgba(255,102,0,0.4)]">
                <Backpack className="h-12 w-12 text-white" />
              </div>
              <h1 className="text-4xl md:text-5xl font-black uppercase mb-4" style={{ background: 'linear-gradient(135deg, #ff6600, #ff0040)', WebkitBackgroundClip: 'text', WebkitTextFillColor: 'transparent' }}>My Stash</h1>
              <p className="text-gray-300 mb-8 max-w-lg mx-auto text-lg">Your private gear inventory. Track what you own, set prices, and selectively share with traders.</p>
              <div className="grid grid-cols-3 gap-4 max-w-md mx-auto mb-8 text-center">
                <div className="p-4 rounded-lg bg-black/40 border border-white/10"><Shield className="h-6 w-6 mx-auto mb-2 text-[#ff6600]" /><p className="text-xs text-gray-400">Encrypted</p></div>
                <div className="p-4 rounded-lg bg-black/40 border border-white/10"><ArrowRightLeft className="h-6 w-6 mx-auto mb-2 text-[#ccff00]" /><p className="text-xs text-gray-400">Syncs Everywhere</p></div>
                <div className="p-4 rounded-lg bg-black/40 border border-white/10"><ArrowRightLeft className="h-6 w-6 mx-auto mb-2 text-cyan-400" /><p className="text-xs text-gray-400">P2P Trading</p></div>
              </div>
              <LoginArea className="justify-center" />
            </div>
          </div>
        </div>
      </Layout>
    );
  }

  // ── No encryption ──
  if (!isEncryptionAvailable) {
    return (
      <Layout>
        <div className="container px-4 py-12 max-w-4xl">
          <Card className="bg-black/80 border-2 border-yellow-500/50">
            <CardContent className="p-8 text-center">
              <AlertTriangle className="h-12 w-12 mx-auto mb-4 text-yellow-500" />
              <h2 className="text-2xl font-black uppercase text-white mb-3">Encryption Required</h2>
              <p className="text-gray-300 mb-6 max-w-md mx-auto">Your Stash is encrypted for privacy. Please use a signer that supports NIP-44 encryption (like Alby, nos2x, or Amber).</p>
              <Button variant="outline" asChild><Link to="/signers">Learn About Signers</Link></Button>
            </CardContent>
          </Card>
        </div>
      </Layout>
    );
  }

  return (
    <Layout>
      <style>{`
        @keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
        .animate-shimmer { animation: shimmer 2s infinite; }
      `}</style>

      {/* ── Sticky header ── */}
      <div className="sticky top-0 z-30 bg-black/96 backdrop-blur-md border-b border-white/8">
        <div className="container px-4 max-w-7xl">
          {/* Title row */}
          <div className="flex items-center justify-between min-h-14 py-2 gap-3">
            <div className="flex items-center gap-3 min-w-0 flex-1">
              <div className="relative flex-shrink-0">
                <div className="w-9 h-9 rounded-xl bg-gradient-to-br from-[#ff6600] to-[#ff0040] flex items-center justify-center shadow-[0_0_16px_rgba(255,102,0,0.35)]">
                  <Backpack className="h-4 w-4 text-white" />
                </div>
                {stats.total > 0 && (
                  <div className="absolute -bottom-1 -right-1 min-w-[18px] h-[18px] rounded-full bg-[#ccff00] border-2 border-black flex items-center justify-center px-0.5">
                    <span className="text-black text-[9px] font-black leading-none">{stats.total}</span>
                  </div>
                )}
              </div>
              <div className="min-w-0">
                <h1 className="text-lg font-black uppercase text-white leading-none tracking-tight">My Stash</h1>
                <div className="flex items-center flex-wrap gap-x-2 gap-y-1 mt-1">
                  <span className="flex items-center gap-1 text-[10px] text-green-400/80 whitespace-nowrap"><Shield className="h-2.5 w-2.5 flex-shrink-0" />Encrypted</span>
                  <span className="text-white/15 text-[10px]">·</span>
                  <span className="text-[10px] text-[#ccff00]/70 whitespace-nowrap">Syncs everywhere</span>
                  {stats.totalValue > 0 && (
                    <><span className="text-white/15 text-[10px]">·</span>
                    <span className="flex items-center gap-0.5 text-[10px] text-amber-400/80 whitespace-nowrap"><Zap className="h-2.5 w-2.5 flex-shrink-0" />{stats.totalValue > 999 ? Math.floor(stats.totalValue / 1000) + 'k' : stats.totalValue} sats</span></>
                  )}
                </div>
              </div>
            </div>
            <div className="flex items-center gap-2 flex-shrink-0">
              {/* View toggle — only useful when there are items to view */}
              {stats.total > 0 && (
                <div className="flex items-center rounded-lg border border-white/10 overflow-hidden">
                  <button aria-label="List view" onClick={() => setViewMode('list')} className={cn('px-2.5 py-1.5 transition-colors', viewMode === 'list' ? 'bg-white/12 text-white' : 'text-gray-400 hover:text-gray-300')}><List className="h-3.5 w-3.5" /></button>
                  <button aria-label="Grid view" onClick={() => setViewMode('grid')} className={cn('px-2.5 py-1.5 transition-colors', viewMode === 'grid' ? 'bg-white/12 text-white' : 'text-gray-400 hover:text-gray-300')}><LayoutGrid className="h-3.5 w-3.5" /></button>
                </div>
              )}
              {/* Mobile-only quick add — desktop has sidebar buttons */}
              <div className="flex sm:hidden">
                <AddItemDialog onAdd={handleAddItem} mode="stash" />
              </div>
            </div>
          </div>
          {/* Tab row */}
          <div className="flex items-center gap-1 -mb-px">
            {(['stash', 'wishlist'] as const).map((tab) => {
              const count = tab === 'stash' ? stashItems.length : wishlistItems.length;
              const active = activeTab === tab;
              return (
                <button key={tab} onClick={() => setActiveTab(tab)}
                  className={cn('flex items-center gap-1.5 px-4 py-2.5 text-sm font-bold border-b-2 transition-all',
                    active ? (tab === 'stash' ? 'border-[#ff0040] text-white' : 'border-cyan-400 text-white') : 'border-transparent text-gray-500 hover:text-gray-300')}>
                  {tab === 'stash' ? <Package className="h-3.5 w-3.5" /> : <Heart className="h-3.5 w-3.5" />}
                  {tab === 'stash' ? 'Stash' : 'Wishlist'}
                  <span className={cn('text-xs px-1.5 py-0.5 rounded-full font-black', active ? (tab === 'stash' ? 'bg-[#ff0040]/20 text-[#ff0040]' : 'bg-cyan-400/20 text-cyan-400') : 'bg-white/8 text-gray-500')}>{count}</span>
                </button>
              );
            })}
          </div>
        </div>
      </div>

      {/* ── Filter bar ── */}
      <div className="border-b border-white/6 bg-black/40">
        <div className="container px-4 max-w-7xl py-2 flex items-center gap-2 flex-wrap">
          <div className="relative flex-1 min-w-[140px] sm:flex-none sm:w-44">
            <Search className="absolute left-2.5 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-gray-400 pointer-events-none" />
            <Input placeholder="Search..." value={searchQuery} onChange={(e) => setSearchQuery(e.target.value)} className="pl-8 h-8 bg-white/4 border-white/8 text-sm placeholder:text-gray-400 focus:border-[#ff6600]/50" />
          </div>
          <Select value={filterCategory} onValueChange={setFilterCategory}>
            <SelectTrigger className="w-[130px] sm:w-[140px] h-8 bg-white/4 border-white/8 text-sm flex-shrink-0"><SelectValue placeholder="All categories" /></SelectTrigger>
            <SelectContent>
              <SelectItem value="all">All categories</SelectItem>
              {Object.entries(STASH_CATEGORIES).map(([key, cat]) => <SelectItem key={key} value={key}>{cat.emoji} {cat.label}</SelectItem>)}
            </SelectContent>
          </Select>
          {showCategoryChips && (
            <div className="flex items-center gap-1.5 overflow-x-auto scrollbar-none">
              {activeCategoryChips.map(([key, cat]) => {
                const count = displayItems.filter(i => i.category === key).length;
                return (
                  <button key={key} onClick={() => setFilterCategory(filterCategory === key ? 'all' : key)}
                    className={cn('flex-shrink-0 flex items-center gap-1 px-2.5 py-1 rounded-full text-xs font-bold transition-all border whitespace-nowrap',
                      filterCategory === key ? 'bg-white text-black border-white' : 'bg-white/4 border-white/8 text-gray-400 hover:border-white/20 hover:text-white')}>
                    {cat.emoji} {count}
                  </button>
                );
              })}
            </div>
          )}
          {activeTab === 'stash' && stashItems.some(i => i.storageLocation && i.storageLocation !== 'other') && (
            <div className="flex items-center gap-1.5 overflow-x-auto scrollbar-none">
              {([{ value: 'all', label: 'All' }, { value: 'home', label: '🏠' }, { value: 'car', label: '🚗' }, { value: 'backpack', label: '🎒' }, { value: 'skatepark', label: '🛹' }, { value: 'van', label: '🚐' }, { value: 'friends', label: '👫' }] as const).map(({ value, label }) => {
                const count = value === 'all' ? stashItems.length : stashItems.filter(i => i.storageLocation === value).length;
                if (value !== 'all' && count === 0) return null;
                return (
                  <button key={value} onClick={() => setFilterLocation(value)}
                    className={cn('flex-shrink-0 px-2.5 py-1 rounded-full text-xs font-bold transition-all border whitespace-nowrap',
                      filterLocation === value ? 'bg-[#ff6600] border-[#ff6600] text-black' : 'bg-white/4 border-white/8 text-gray-500 hover:border-[#ff6600]/40 hover:text-white')}>
                    {label}
                  </button>
                );
              })}
            </div>
          )}
          <span className="ml-auto text-xs text-gray-500 hidden lg:block flex-shrink-0">{filteredItems.length} item{filteredItems.length !== 1 ? 's' : ''}</span>
        </div>
      </div>

      {/* ── Body ── */}
      <div className="container px-4 py-5 max-w-7xl">
        <div className="flex gap-7 items-start">

          {/* ── Items panel ── */}
          <div className="flex-1 min-w-0">
            {isLoading ? (
              <div className="grid grid-cols-2 md:grid-cols-3 xl:grid-cols-4 gap-4">
                {Array.from({ length: 8 }).map((_, i) => (
                  <div key={i} className="rounded-xl border border-white/8 bg-white/3 overflow-hidden">
                    <Skeleton className="h-44 w-full bg-white/5" />
                    <div className="p-3 space-y-2">
                      <Skeleton className="h-4 w-3/4 bg-white/5" />
                      <Skeleton className="h-3 w-1/2 bg-white/5" />
                      <Skeleton className="h-3 w-1/3 bg-white/5" />
                    </div>
                  </div>
                ))}
              </div>
            ) : filteredItems.length === 0 ? (
              /* ── Empty states ── */
              <div className="flex flex-col items-center justify-center py-28 text-center">
                {activeTab === 'wishlist' ? (
                  <>
                    <div className="w-20 h-20 rounded-3xl bg-gradient-to-br from-cyan-500/20 to-blue-500/10 border border-cyan-500/25 flex items-center justify-center mb-5 shadow-[0_0_40px_rgba(6,182,212,0.12)]">
                      <Heart className="h-10 w-10 text-cyan-500/60" />
                    </div>
                    <p className="font-black text-white text-2xl uppercase tracking-tight mb-2">Wishlist Empty</p>
                    <p className="text-sm text-muted-foreground mb-7 max-w-xs leading-relaxed">Add gear you're hunting for — we'll match you with friends' stashes.</p>
                    <AddItemDialog onAdd={handleAddItem} mode="wtb" />
                  </>
                ) : stashItems.length === 0 ? (
                  <>
                    <div className="relative mb-7">
                      <div className="absolute inset-0 rounded-full bg-[#ff6600]/15 blur-[60px]" />
                      <div className="relative w-24 h-24 rounded-3xl bg-gradient-to-br from-[#ff6600]/25 to-[#ff0040]/15 border border-[#ff6600]/30 flex items-center justify-center shadow-[0_0_50px_rgba(255,102,0,0.12)]">
                        <Backpack className="h-12 w-12 text-[#ff6600]" />
                      </div>
                    </div>
                    <p className="font-black text-white text-3xl uppercase tracking-tight mb-3">Your Stash is Empty</p>
                    <p className="text-muted-foreground mb-8 max-w-sm leading-relaxed">Start tracking your gear. Decks, trucks, shoes — add it once, access it everywhere via Nostr.</p>
                    <AddItemDialog onAdd={handleAddItem} />
                  </>
                ) : (
                  <>
                    <div className="w-14 h-14 rounded-2xl bg-white/4 border border-white/8 flex items-center justify-center mb-4">
                      <Search className="h-7 w-7 text-gray-400" />
                    </div>
                    <p className="text-white font-bold mb-1">No items match</p>
                    <p className="text-muted-foreground text-sm mb-4">Try adjusting your filters.</p>
                    <button onClick={() => { setSearchQuery(''); setFilterCategory('all'); setFilterLocation('all'); }} className="text-xs text-[#ff6600] hover:underline font-black uppercase tracking-wider">Clear all filters</button>
                  </>
                )}
              </div>
            ) : viewMode === 'list' ? (
              <div className="space-y-2">
                {filteredItems.map((item) => (
                  <StashListRow key={item.id} item={item} isWTB={item.itemType === 'wtb'}
                    onEdit={() => setEditingItem(item)} onDelete={() => handleRemoveItem(item.id)} onListOnMarketplace={() => setListingItem(item)} />
                ))}
              </div>
            ) : (
              <div className="grid grid-cols-2 md:grid-cols-3 xl:grid-cols-4 gap-4">
                {filteredItems.map((item) => (
                  <StashItemCard key={item.id} item={item} isWTB={item.itemType === 'wtb'}
                    onEdit={() => setEditingItem(item)} onDelete={() => handleRemoveItem(item.id)} onListOnMarketplace={() => setListingItem(item)} />
                ))}
              </div>
            )}
          </div>

          {/* ── Sidebar — 300px, desktop only, sticky ── */}
          <aside className="hidden lg:flex flex-col w-[300px] flex-shrink-0 gap-4" style={{ position: 'sticky', top: '118px' }}>

            {/* Quick actions */}
            <div className="flex flex-col gap-2">
              <AddItemDialog onAdd={handleAddItem} mode="stash" />
              <AddItemDialog onAdd={handleAddItem} mode="wtb" />
            </div>

            {/* Stats card */}
            {stats.total > 0 && (
              <div className="rounded-2xl overflow-hidden border border-white/10 bg-gradient-to-b from-white/5 to-white/2">
                {/* Card header */}
                <div className="px-5 pt-5 pb-4 border-b border-white/8">
                  <div className="flex items-center justify-between mb-4">
                    <span className="text-[11px] font-black uppercase tracking-widest text-gray-500">Inventory</span>
                    <Trophy className="h-3.5 w-3.5 text-amber-400/60" />
                  </div>
                  {/* Big stat */}
                  <div className="flex items-end gap-3">
                    <div>
                      <p className="text-5xl font-black text-white leading-none">{stats.total}</p>
                      <p className="text-xs text-gray-500 mt-1">item{stats.total !== 1 ? 's' : ''} in stash</p>
                    </div>
                    {stats.totalValue > 0 && (
                      <div className="mb-1 pl-3 border-l border-white/10">
                        <p className="text-xl font-black text-amber-400 leading-none flex items-center gap-1">
                          <Zap className="h-4 w-4" />
                          {stats.totalValue > 999 ? (stats.totalValue / 1000).toFixed(1) + 'k' : stats.totalValue}
                        </p>
                        <p className="text-xs text-gray-400 mt-0.5">est. sats</p>
                      </div>
                    )}
                  </div>
                </div>

                {/* Secondary stats row */}
                <div className="grid grid-cols-3 divide-x divide-white/6 border-b border-white/8">
                  {[
                    { label: 'Wishlist', value: wishlistItems.length, color: 'text-cyan-400' },
                    { label: 'For Sale', value: stashItems.filter(i => i.willingToSell).length, color: 'text-green-400' },
                    { label: 'To Trade', value: stashItems.filter(i => i.willingToTrade).length, color: 'text-[#ff6600]' },
                  ].map(({ label, value, color }) => (
                    <div key={label} className="flex flex-col items-center py-3 px-2 gap-0.5">
                      <span className={cn('text-lg font-black leading-none', color)}>{value}</span>
                      <span className="text-[10px] text-gray-400 font-bold">{label}</span>
                    </div>
                  ))}
                </div>

                {/* Category breakdown bars */}
                {Object.keys(stats.byCategory).length > 0 && (
                  <div className="px-5 py-4 space-y-2.5">
                    {Object.entries(stats.byCategory).sort(([, a], [, b]) => b - a).slice(0, 5).map(([cat, count]) => {
                      const category = STASH_CATEGORIES[cat as keyof typeof STASH_CATEGORIES];
                      if (!category) return null;
                      const pct = Math.round((count / stats.total) * 100);
                      return (
                        <button key={cat}
                          onClick={() => setFilterCategory(filterCategory === cat ? 'all' : cat)}
                          className={cn('w-full flex items-center gap-2.5 group transition-opacity', filterCategory !== 'all' && filterCategory !== cat ? 'opacity-30' : 'opacity-100')}>
                          <span className="text-sm flex-shrink-0 w-5 text-center">{category.emoji}</span>
                          <div className="flex-1 min-w-0">
                            <div className="flex items-center justify-between mb-1">
                              <span className="text-[11px] text-gray-400 font-bold group-hover:text-white transition-colors truncate">{category.label}</span>
                              <span className="text-[10px] text-gray-400 font-black ml-1">{count}</span>
                            </div>
                            <div className="h-1 rounded-full bg-white/6 overflow-hidden">
                              <div className="h-full rounded-full bg-gradient-to-r from-[#ff6600] to-[#ff0040] transition-all" style={{ width: `${pct}%` }} />
                            </div>
                          </div>
                        </button>
                      );
                    })}
                  </div>
                )}
              </div>
            )}

            {/* Marketplace / Sell CTA */}
            <div className={cn('rounded-2xl border overflow-hidden',
              hasForSale > 0
                ? 'border-[#ff6600]/40 bg-gradient-to-br from-[#ff6600]/15 via-[#ff3300]/8 to-black/80 shadow-[0_0_40px_rgba(255,102,0,0.08)]'
                : 'border-white/8 bg-white/3')}>
              <div className="p-5 space-y-4">
                <div className="flex items-start gap-3">
                  <div className={cn('w-10 h-10 rounded-xl flex items-center justify-center flex-shrink-0 mt-0.5',
                    hasForSale > 0 ? 'bg-gradient-to-br from-[#ff6600] to-[#ff0040] shadow-lg shadow-[#ff6600]/25' : 'bg-white/8')}>
                    <Store className={cn('h-5 w-5', hasForSale > 0 ? 'text-white' : 'text-gray-500')} />
                  </div>
                  <div className="min-w-0 flex-1">
                    <p className={cn('text-sm font-black uppercase tracking-wide leading-none', hasForSale > 0 ? 'text-white' : 'text-gray-400')}>
                      {hasForSale > 0 ? 'Ready to Sell' : 'Marketplace'}
                    </p>
                    <p className="text-[11px] text-gray-500 mt-1 leading-snug">
                      {hasForSale > 0
                        ? `${hasForSale} item${hasForSale > 1 ? 's' : ''} marked for sale or trade`
                        : 'Toggle "Sell" or "Trade" on any item to list it publicly'}
                    </p>
                  </div>
                </div>
                {hasForSale > 0 && (
                  <div className="flex gap-1.5">
                    <div className="flex items-center gap-1 px-2.5 py-1 rounded-full bg-green-500/10 border border-green-500/30">
                      <Zap className="h-3 w-3 text-green-400" />
                      <span className="text-[10px] font-black text-green-400">{stashItems.filter(i => i.willingToSell).length} for sale</span>
                    </div>
                    <div className="flex items-center gap-1 px-2.5 py-1 rounded-full bg-cyan-500/10 border border-cyan-500/30">
                      <ArrowRightLeft className="h-3 w-3 text-cyan-400" />
                      <span className="text-[10px] font-black text-cyan-400">{stashItems.filter(i => i.willingToTrade).length} to trade</span>
                    </div>
                  </div>
                )}
                <Link to="/marketplace">
                  <Button size="sm" className={cn('w-full gap-2 h-10 font-black text-xs',
                    hasForSale > 0
                      ? 'bg-gradient-to-r from-[#ff6600] to-[#ff0040] hover:opacity-90 text-white border-0 shadow-lg shadow-[#ff6600]/25'
                      : 'bg-white/6 hover:bg-white/10 text-gray-400 border border-white/8')}>
                    <ShoppingCart className="h-4 w-4" />
                    {hasForSale > 0 ? 'Go to Marketplace →' : 'Browse Marketplace'}
                  </Button>
                </Link>
              </div>
            </div>

            {/* Wishlist teaser */}
            {wishlistItems.length > 0 && (
              <div className="rounded-2xl border border-cyan-500/20 bg-gradient-to-br from-cyan-500/8 to-blue-500/4 p-4 space-y-3">
                <div className="flex items-center justify-between">
                  <div className="flex items-center gap-2">
                    <Heart className="h-4 w-4 text-cyan-400" />
                    <span className="text-sm font-black text-cyan-300 uppercase tracking-wide">Wishlist</span>
                  </div>
                  <span className="text-2xl font-black text-cyan-400">{wishlistItems.length}</span>
                </div>
                <p className="text-[11px] text-gray-500 leading-relaxed">We'll match your wishlist against friends' stashes automatically.</p>
                <button onClick={() => setActiveTab('wishlist')} className="w-full text-xs font-black text-cyan-400 hover:text-cyan-300 transition-colors py-1.5 rounded-lg bg-cyan-500/8 hover:bg-cyan-500/15 border border-cyan-500/20 uppercase tracking-wider">
                  View Wishlist
                </button>
              </div>
            )}

            {/* How it works */}
            <div className="rounded-2xl border border-white/6 bg-white/2 p-4">
              <p className="text-[10px] font-black uppercase tracking-widest text-gray-500 mb-3">How it works</p>
              <ul className="space-y-2">
                {[
                  { icon: '✏️', text: 'Edit items with the pen button' },
                  { icon: '🏪', text: 'List for sale with the store button' },
                  { icon: '📸', text: 'Add photos for better trade offers' },
                  { icon: '🔑', text: 'Nostr key syncs to all devices' },
                ].map(({ icon, text }) => (
                  <li key={text} className="flex items-start gap-2.5">
                    <span className="text-sm flex-shrink-0 mt-0.5">{icon}</span>
                    <span className="text-[11px] text-gray-400 leading-snug">{text}</span>
                  </li>
                ))}
              </ul>
            </div>
          </aside>
        </div>

        {/* ── Mobile marketplace CTA ── */}
        {hasForSale > 0 && (
          <div className="lg:hidden mt-4">
            <Link to="/marketplace">
              <div className="flex items-center gap-3 p-4 rounded-2xl bg-gradient-to-r from-[#ff6600]/18 to-[#ff0040]/12 border border-[#ff6600]/30 active:scale-[0.99] transition-transform">
                <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-[#ff6600] to-[#ff0040] flex items-center justify-center flex-shrink-0 shadow-lg shadow-[#ff6600]/20">
                  <ShoppingCart className="h-5 w-5 text-white" />
                </div>
                <div className="flex-1 min-w-0">
                  <p className="text-sm font-black text-white leading-none">{hasForSale} item{hasForSale > 1 ? 's' : ''} ready to sell</p>
                  <p className="text-xs text-[#ff6600]/80 mt-0.5">Tap to go to Marketplace →</p>
                </div>
              </div>
            </Link>
          </div>
        )}
      </div>

      {/* Mobile FABs */}
      <div className="fixed md:hidden z-40 flex flex-col items-end gap-2" style={{ bottom: 'calc(3.5rem + env(safe-area-inset-bottom, 0px) + 0.75rem)', right: '0.75rem' }}>
        <AddItemDialog onAdd={handleAddItem} mode="wtb"
          trigger={<button className="h-10 w-10 rounded-full bg-cyan-500/90 shadow-lg shadow-cyan-500/20 border border-white/20 flex items-center justify-center active:scale-90 transition-transform touch-manipulation"><Heart className="h-4 w-4 text-black" /></button>}
        />
        <AddItemDialog onAdd={handleAddItem} mode="stash"
          trigger={<button className="rounded-full bg-gradient-to-br from-[#ff6600] to-[#ff0040] shadow-xl shadow-[#ff0040]/25 border-2 border-white/20 flex items-center justify-center active:scale-90 transition-transform touch-manipulation" style={{ height: '3.25rem', width: '3.25rem' }}><Plus className="h-6 w-6 text-white" strokeWidth={2.5} /></button>}
        />
      </div>

      {editingItem && (
        <EditItemDialog item={editingItem} open={!!editingItem} onOpenChange={(open) => !open && setEditingItem(null)}
          onSave={(updatedItem) => { handleUpdateItem(updatedItem); setEditingItem(null); }} />
      )}
      {listingItem && (
        <ListAtSpotDialog item={listingItem} open={!!listingItem} onOpenChange={(open) => !open && setListingItem(null)} onSelectSpot={handleSpotSelection} />
      )}

      {/* Delete confirmation — deleting gear is destructive (and re-encrypts +
          signs, so it costs an Amber prompt); confirm before committing. */}
      <AlertDialog open={!!pendingDeleteId} onOpenChange={(open) => !open && setPendingDeleteId(null)}>
        <AlertDialogContent>
          <AlertDialogHeader>
            <AlertDialogTitle>Remove from your stash?</AlertDialogTitle>
            <AlertDialogDescription>
              {pendingDeleteItem
                ? <>“{pendingDeleteItem.title}” will be removed from your stash{pendingDeleteItem.visibility === 'public' ? ' and unlisted from your public showcase' : ''}. This can’t be undone.</>
                : 'This item will be removed from your stash. This can’t be undone.'}
            </AlertDialogDescription>
          </AlertDialogHeader>
          <AlertDialogFooter>
            <AlertDialogCancel>Cancel</AlertDialogCancel>
            <AlertDialogAction
              onClick={confirmRemoveItem}
              className="bg-red-600 hover:bg-red-700 text-white"
            >
              Remove
            </AlertDialogAction>
          </AlertDialogFooter>
        </AlertDialogContent>
      </AlertDialog>
    </Layout>
  );
}