refactor(wizard): optimize ui ux with no-page-scroll and hub flow

shop/components/wizard/step-summary.tsx

@@ -1,11 +1,32 @@
 'use client'
 
-import React from 'react'
+import React, { useState } from 'react'
 import { Card, CardHeader, CardTitle, CardDescription, CardContent, CardFooter } from '@/components/ui/card'
 import { Separator } from '@/components/ui/separator'
 import { Button } from '@/components/ui/button'
 import { Badge } from '@/components/ui/badge'
-import { ShieldCheck, Building2, Calendar, Loader2, CheckCircle2 } from 'lucide-react'
+import { Checkbox } from '@/components/ui/checkbox'
+import { Label } from '@/components/ui/label'
+import {
+  ShieldCheck,
+  Building2,
+  Calendar,
+  Loader2,
+  CheckCircle2,
+  Pencil,
+  Trash2,
+  Plus,
+  ChevronLeft,
+  MessageSquare,
+  FileText,
+  Lock,
+  Check,
+  X,
+  CreditCard,
+  User,
+  MapPin,
+  Send,
+} from 'lucide-react'
 import * as Icons from 'lucide-react'
 import { Category, Product, EndCustomer, Profile } from '@/lib/types'
 
@@ -70,300 +91,424 @@ export function StepSummary({
   onAddNewBasketItem,
   onDeleteBasketItem,
 }: StepSummaryProps) {
-  const [confirmDeleteIdx, setConfirmDeleteIdx] = React.useState<number | null>(null)
+  const [confirmDeleteIdx, setConfirmDeleteIdx] = useState<number | null>(null)
+  const [acceptedTerms, setAcceptedTerms] = useState(false)
+
+  const fmt = (val: number) => new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(val)
+
+  const totalPositionsCount = finalItemsToShow.length
+  const primaryInterval = finalItemsToShow[0]?.billingInterval || 'monthly'
 
   return (
-    <div className="grid grid-cols-1 lg:grid-cols-12 gap-6 h-full items-stretch text-left">
-      {/* LINKER BEREICH: Scrollbares Bedienfeld */}
-      <div className="lg:col-span-5 flex flex-col h-full overflow-hidden pr-4 space-y-6">
-        <div className="flex-1 overflow-y-auto pr-1 space-y-6 pb-4 subpixel-antialiased scrollbar-thin scrollbar-thumb-white/10 scrollbar-track-transparent">
-          
-          {/* Header & Status Stepper */}
-          <div className="space-y-4">
-            <div className="flex items-center gap-3">
-              <div className="w-12 h-12 bg-primary/20 rounded-xl flex items-center justify-center border border-primary/50 shrink-0">
-                <ShieldCheck className="w-6 h-6 text-primary" />
-              </div>
-              <div>
-                <h2 className="text-2xl font-extrabold text-white tracking-tight">
-                  Anfrage prüfen
-                </h2>
-                <p className="text-slate-400 text-xs mt-0.5">
-                  Fast fertig! Bitte überprüfen Sie Ihre ausgewählte Konfiguration.
-                </p>
-              </div>
+    <Card className="glass-dark border-white/10 h-[calc(100vh-8.5rem)] flex flex-col justify-between overflow-hidden relative">
+      {/* ─── 1. FIXED HEADER (shrink-0) ─── */}
+      <CardHeader className="pb-3 pt-4 px-6 shrink-0 border-b border-white/10 bg-slate-950/40 space-y-0">
+        <div className="flex items-center justify-between gap-3">
+          <div className="flex items-center gap-3">
+            <div className="w-10 h-10 bg-primary/20 rounded-xl flex items-center justify-center border border-primary/40 shrink-0 text-primary">
+              <ShieldCheck className="w-5 h-5" />
             </div>
-
-
-          </div>
-
-          {/* Kunden-Info Card */}
-          {selectedEndCustomer && (
-            <div className="p-4 rounded-xl bg-white/5 border border-white/10 space-y-2">
-              <div className="flex items-center gap-2 text-primary font-bold text-xs uppercase tracking-wider">
-                <Building2 className="w-4 h-4" />
-                <span>Ausgewählter Endkunde</span>
-              </div>
-              <p className="text-white font-bold text-sm">{selectedEndCustomer.company_name}</p>
-              <p className="text-slate-400 text-xs">Ansprechpartner: {[selectedEndCustomer.first_name, selectedEndCustomer.last_name].filter(Boolean).join(' ')}</p>
-              <p className="text-slate-400 text-xs">Adresse: {[selectedEndCustomer.street, [selectedEndCustomer.zip, selectedEndCustomer.city].filter(Boolean).join(' ')].filter(Boolean).join(', ')}</p>
+            <div>
+              <CardTitle className="text-xl font-bold text-white flex items-center gap-2">
+                Anfrage prüfen & absenden
+              </CardTitle>
+              <CardDescription className="text-xs text-slate-300 mt-0.5">
+                Überprüfen Sie alle konfigurierten Kassen, Positionen und Konditionen vor der Freigabe.
+              </CardDescription>
             </div>
-          )}
-
-          {/* Anmerkungen / Notizfeld */}
-          <div className="space-y-2 pt-2">
-            <label htmlFor="order-notes" className="block text-xs font-bold text-white uppercase tracking-wider">
-              Anmerkungen / Hinweise (optional)
-            </label>
-            <textarea
-              id="order-notes"
-              rows={4}
-              value={orderNotes}
-              onChange={e => setOrderNotes(e.target.value)}
-              placeholder="Besondere Hinweise, Ansprechpartner oder Terminwünsche hier eintragen..."
-              className="w-full p-3 rounded-xl bg-white/5 border border-white/10 text-xs text-white placeholder-slate-500 focus:border-primary focus:outline-none transition-colors duration-200 resize-none shadow-inner"
-            />
-          </div>
-
-          <p className="text-[10px] text-slate-500 leading-relaxed">
-            Mit dem Klick auf „{initialOrder ? 'Anfrage aktualisieren' : 'Kostenpflichtig bestellen'}“ akzeptieren Sie unsere AGB und die{' '}
-            <a href="/datenschutz" target="_blank" rel="noopener noreferrer" className="underline hover:text-slate-400">
-              Datenschutzerklärung
-            </a>.
-          </p>
-
-          {/* Aktions-Buttons */}
-          <div className="space-y-3 pt-2">
-            <Button
-              className="w-full h-12 text-sm font-bold bg-primary hover:bg-primary/90 shadow-[0_0_15px_rgba(59,130,246,0.2)] rounded-xl"
-              onClick={handleSubmit}
-              disabled={isSubmitting}
-            >
-              {isSubmitting ? (
-                initialOrder ? (
-                  <><Loader2 className="mr-2 h-4 w-4 animate-spin" /> Anfrage wird aktualisiert...</>
-                ) : (
-                  <><Loader2 className="mr-2 h-4 w-4 animate-spin" /> Anfrage wird versendet...</>
-                )
-              ) : (
-                initialOrder ? 'Anfrage aktualisieren' : 'Kostenpflichtig bestellen'
-              )}
-            </Button>
-            <Button variant="ghost" className="w-full text-slate-400 hover:text-white text-xs h-10" onClick={prevStep}>
-              Noch etwas ändern
-            </Button>
           </div>
+          <Badge variant="outline" className="border-primary/30 text-primary bg-primary/10 text-xs px-3 py-1">
+            Schritt 4 von 4
+          </Badge>
         </div>
-      </div>
+      </CardHeader>
 
-      {/* RECHTER BEREICH: Eigenständig scrollbare Zusammenfassung der Anfrage */}
-      <div className="lg:col-span-7 flex flex-col h-full overflow-hidden pl-4">
-        <Card className="glass-dark border-white/10 shadow-2xl overflow-hidden rounded-2xl flex flex-col h-full">
-          <CardHeader className="shrink-0 border-b border-white/5 pb-4">
-            <CardTitle className="text-lg text-white flex items-center justify-between font-bold flex-wrap gap-2">
-              <div className="flex items-center gap-2">
-                <span>Zusammenfassung der Positionen</span>
-                <Badge className="bg-primary/20 text-primary border border-primary/30 text-xs rounded-full">
-                  {finalItemsToShow.length} {finalItemsToShow.length === 1 ? 'Kasse' : 'Kassen'}
-                </Badge>
+      {/* ─── 2. SCROLLABLE MIDDLE (flex-1 min-h-0 overflow-y-auto) ─── */}
+      <div className="flex-1 min-h-0 overflow-y-auto p-6 scrollbar-thin scrollbar-thumb-slate-800 scrollbar-track-transparent">
+        <div className="grid grid-cols-1 lg:grid-cols-12 gap-6 max-w-7xl mx-auto w-full items-start">
+          {/* ─── LINKES RASTER (lg:col-span-7) – Auftragsübersicht & Kassen ─── */}
+          <div className="lg:col-span-7 space-y-5">
+            {/* Kopf-Card: Endkunde & Abrechnungsmodell */}
+            <div className="p-4 rounded-2xl bg-white/5 border border-white/10 space-y-3">
+              <div className="flex items-center justify-between gap-2 border-b border-white/5 pb-2.5 flex-wrap">
+                <div className="flex items-center gap-2 text-primary font-bold text-xs uppercase tracking-wider">
+                  <Building2 className="w-4 h-4" />
+                  <span>Kunde & Abrechnung</span>
+                </div>
+                <div className="flex items-center gap-2">
+                  <Badge variant="outline" className="text-[10px] bg-primary/10 border-primary/30 text-primary font-semibold">
+                    {primaryInterval === 'one_time' ? 'Einmalkauf' : 'Monatliches Abo'}
+                  </Badge>
+                  {lastLicenseDate && (
+                    <Badge variant="outline" className="text-[10px] bg-emerald-500/10 border-emerald-500/30 text-emerald-400">
+                      Stichtag: {new Date(lastLicenseDate).toLocaleDateString('de-DE')}
+                    </Badge>
+                  )}
+                </div>
               </div>
-              {onAddNewBasketItem && (
-                <Button
-                  type="button"
-                  variant="outline"
-                  size="sm"
-                  onClick={onAddNewBasketItem}
-                  className="border-dashed border-primary/50 text-primary hover:bg-primary/10 text-xs font-bold gap-1.5 h-8 rounded-lg"
-                >
-                  <Icons.UserPlus className="w-3.5 h-3.5" /> + Weitere Kasse anlegen
-                </Button>
-              )}
-            </CardTitle>
-          </CardHeader>
 
-          {/* Scrollbarer Content der Aufschlüsselung */}
-          <CardContent className="space-y-6 text-left flex-1 overflow-y-auto pt-6 subpixel-antialiased scrollbar-thin scrollbar-thumb-white/10 scrollbar-track-transparent pr-2">
-            <div className="space-y-6">
-              {finalItemsToShow.map((item, itemIdx) => (
-                <div key={itemIdx} className="space-y-3 border-b border-white/5 pb-5 last:border-0 last:pb-0">
-                  <div 
-                    onClick={() => onEditBasketItem && onEditBasketItem(itemIdx)}
-                    className={`flex justify-between items-center bg-white/5 p-3 rounded-xl border border-white/10 ${onEditBasketItem ? 'cursor-pointer hover:border-primary/50 hover:bg-white/10 transition-all group' : ''}`}
-                  >
-                    <div className="flex items-center gap-2">
-                      <span className="text-white font-bold text-sm">Kasse: {item.deviceName}</span>
-                      {item.licenseNumber && (
-                        <span className="text-[10px] text-slate-400">({item.licenseNumber})</span>
-                      )}
-                    </div>
-                    <div className="flex items-center gap-2">
-                      <span className={`text-[10px] px-2 py-0.5 rounded border ${item.billingInterval === 'one_time' ? 'border-amber-500/30 text-amber-400 bg-amber-500/10' : 'border-emerald-500/30 text-emerald-400 bg-emerald-500/10'} font-semibold uppercase`}>
-                        {item.billingInterval === 'one_time' ? 'Kauf' : 'Abo'}
+              {selectedEndCustomer ? (
+                <div className="space-y-1">
+                  <h4 className="text-sm font-bold text-white">{selectedEndCustomer.company_name}</h4>
+                  <div className="flex items-center gap-3 text-xs text-slate-300 flex-wrap">
+                    {(selectedEndCustomer.first_name || selectedEndCustomer.last_name) && (
+                      <span className="flex items-center gap-1">
+                        <User className="w-3 h-3 text-slate-400" />
+                        {[selectedEndCustomer.first_name, selectedEndCustomer.last_name].filter(Boolean).join(' ')}
                       </span>
-                      {onEditBasketItem && (
-                        <Button
-                          type="button"
-                          variant="ghost"
-                          size="sm"
-                          className="h-7 px-2 text-xs text-slate-300 group-hover:text-primary group-hover:bg-primary/20 gap-1 rounded-lg"
-                        >
-                          <Icons.Pencil className="w-3 h-3" /> Bearbeiten
-                        </Button>
-                      )}
-                      {onDeleteBasketItem && (
-                        <Button
-                          type="button"
-                          variant={confirmDeleteIdx === itemIdx ? "destructive" : "ghost"}
-                          size="sm"
-                          onClick={(e) => {
-                            e.stopPropagation()
-                            if (confirmDeleteIdx === itemIdx) {
-                              onDeleteBasketItem(itemIdx)
-                              setConfirmDeleteIdx(null)
-                            } else {
-                              setConfirmDeleteIdx(itemIdx)
-                            }
-                          }}
-                          onMouseLeave={() => setConfirmDeleteIdx(null)}
-                          className={`h-7 px-2 text-xs transition-all ${
-                            confirmDeleteIdx === itemIdx
-                              ? 'bg-red-600 text-white hover:bg-red-700 font-bold px-3 shadow-[0_0_10px_rgba(220,38,38,0.5)]'
-                              : 'text-slate-400 hover:text-red-400 hover:bg-red-500/20'
-                          } gap-1 rounded-lg`}
-                        >
-                          <Icons.Trash2 className="w-3.5 h-3.5" />
-                          {confirmDeleteIdx === itemIdx ? 'Wirklich löschen?' : 'Löschen'}
-                        </Button>
-                      )}
-                    </div>
+                    )}
+                    {(selectedEndCustomer.street || selectedEndCustomer.zip || selectedEndCustomer.city) && (
+                      <span className="flex items-center gap-1">
+                        <MapPin className="w-3 h-3 text-slate-400" />
+                        {[selectedEndCustomer.street, [selectedEndCustomer.zip, selectedEndCustomer.city].filter(Boolean).join(' ')].filter(Boolean).join(', ')}
+                      </span>
+                    )}
+                    {selectedEndCustomer.vat_id && (
+                      <span className="text-slate-400">USt-IdNr: {selectedEndCustomer.vat_id}</span>
+                    )}
                   </div>
+                </div>
+              ) : (
+                <p className="text-xs text-slate-400 italic">Kein Endkunde zugewiesen (Partner-Bestellung).</p>
+              )}
+            </div>
 
-                  {visibleCategories.map(cat => {
-                    const sel = item.selections[cat.id]
-                    const selectedProds: Product[] = []
-                    if (cat.allow_multiselect && sel?.productIds) {
-                      sel.productIds.forEach((pId: string) => {
-                        const p = products.find(prod => prod.id === pId)
-                        if (p) selectedProds.push(p)
-                      })
-                    } else if (sel?.productId) {
-                      const p = products.find(prod => prod.id === sel.productId)
-                      if (p) selectedProds.push(p)
-                    }
+            {/* Kassenliste */}
+            <div className="space-y-3">
+              <div className="flex items-center justify-between">
+                <h3 className="text-xs font-bold text-slate-300 uppercase tracking-wider flex items-center gap-2">
+                  <span>Enthaltene Kassen ({finalItemsToShow.length})</span>
+                </h3>
+                {onAddNewBasketItem && (
+                  <Button
+                    type="button"
+                    variant="outline"
+                    size="sm"
+                    onClick={onAddNewBasketItem}
+                    className="border-dashed border-primary/40 text-primary hover:bg-primary/10 text-xs font-semibold gap-1.5 h-7"
+                  >
+                    <Plus className="w-3 h-3" /> Weitere Kasse hinzufügen
+                  </Button>
+                )}
+              </div>
 
-                    if (selectedProds.length === 0) return null
+              {finalItemsToShow.length === 0 ? (
+                <div className="p-6 rounded-2xl bg-white/5 border border-white/10 text-center space-y-2">
+                  <p className="text-xs text-slate-400 font-medium">Keine Kassen in der Aufstellung vorhanden.</p>
+                </div>
+              ) : (
+                finalItemsToShow.map((item, itemIdx) => (
+                  <div
+                    key={itemIdx}
+                    className="p-4 rounded-2xl bg-white/5 border border-white/10 space-y-3 relative overflow-hidden"
+                  >
+                    {/* Kassen Header Bar */}
+                    <div className="flex justify-between items-center bg-slate-950/40 p-2.5 rounded-xl border border-white/5">
+                      <div className="flex items-center gap-2 min-w-0">
+                        <span className="text-white font-bold text-xs truncate">
+                          {item.deviceName || `Kasse ${itemIdx + 1}`}
+                        </span>
+                        {itemIdx > 0 && (
+                          <Badge variant="outline" className="text-[9px] px-1.5 py-0 border-emerald-500/30 text-emerald-400 bg-emerald-500/10 shrink-0">
+                            Kasse 2+
+                          </Badge>
+                        )}
+                        {item.licenseNumber && (
+                          <span className="text-[10px] text-slate-400 font-mono truncate">
+                            ({item.licenseNumber})
+                          </span>
+                        )}
+                      </div>
 
-                    const sortedProds = [...selectedProds].sort((a, b) => a.base_price - b.base_price)
-                    const freeLimit = cat.allow_multiselect ? cat.free_items_limit : 0
+                      <div className="flex items-center gap-1.5 shrink-0">
+                        <Badge
+                          variant="outline"
+                          className={`text-[9px] px-2 py-0.5 font-semibold ${
+                            item.billingInterval === 'one_time'
+                              ? 'border-amber-500/30 text-amber-400 bg-amber-500/10'
+                              : 'border-blue-500/30 text-blue-400 bg-blue-500/10'
+                          }`}
+                        >
+                          {item.billingInterval === 'one_time' ? 'Kauf' : 'Abo'}
+                        </Badge>
 
-                    return (
-                      <div key={cat.id} className="text-sm space-y-2 pl-2">
-                        <span className="text-slate-500 text-[10px] font-bold uppercase tracking-wider block">{cat.name}:</span>
-                        {sortedProds.map((prod, idx) => {
-                          const isFree = idx < freeLimit
-                          const isAbo = item.billingInterval === 'monthly'
-                          const displayPrice = isFree ? 0 : (isAbo ? ((prod as any).monthly_price ?? prod.base_price) : prod.base_price)
-                          return (
-                            <div key={prod.id} className="flex justify-between text-slate-200">
-                              <span className="flex items-center gap-1.5">
-                                <CategoryIcon icon={cat.icon} className="w-3.5 h-3.5 text-primary shrink-0" />
-                                {prod.name}
-                                {isFree && <span className="text-[9px] bg-green-500/20 text-green-400 px-1.5 py-0.5 rounded border border-green-500/30 font-bold uppercase">Inklusive</span>}
-                              </span>
-                              <span className="font-bold text-xs text-white">
-                                {isFree ? '0,00 €' : new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(displayPrice)}
-                              </span>
-                            </div>
-                          )
-                        })}
+                        {onEditBasketItem && (
+                          <Button
+                            type="button"
+                            variant="ghost"
+                            size="sm"
+                            onClick={() => onEditBasketItem(itemIdx)}
+                            className="h-7 px-2 text-xs text-slate-300 hover:text-primary hover:bg-primary/20 gap-1 rounded-lg"
+                            title="Kasse in Schritt 3 bearbeiten"
+                          >
+                            <Pencil className="w-3 h-3" /> Bearbeiten
+                          </Button>
+                        )}
 
-                        {/* Selected Modules */}
-                        {sel?.moduleIds && sel.moduleIds.length > 0 && (
-                          <div className="pl-4 space-y-1.5 pt-1">
-                            {sel.moduleIds.map((mId: string) => {
-                              let modObj: any = null
-                              products.forEach(p => {
-                                const found = p.modules?.find(m => m.id === mId)
-                                if (found) modObj = found
-                              })
-                              if (!modObj) return null
+                        {onDeleteBasketItem && (
+                          <Button
+                            type="button"
+                            variant={confirmDeleteIdx === itemIdx ? 'destructive' : 'ghost'}
+                            size="sm"
+                            onClick={(e) => {
+                              e.stopPropagation()
+                              if (confirmDeleteIdx === itemIdx) {
+                                onDeleteBasketItem(itemIdx)
+                                setConfirmDeleteIdx(null)
+                              } else {
+                                setConfirmDeleteIdx(itemIdx)
+                              }
+                            }}
+                            onMouseLeave={() => setConfirmDeleteIdx(null)}
+                            className={`h-7 px-2 text-xs transition-all ${
+                              confirmDeleteIdx === itemIdx
+                                ? 'bg-red-600 text-white hover:bg-red-700 font-bold px-2.5 shadow-md shadow-red-500/30'
+                                : 'text-slate-400 hover:text-red-400 hover:bg-red-500/20'
+                            } gap-1 rounded-lg`}
+                            title="Kasse entfernen"
+                          >
+                            <Trash2 className="w-3 h-3" />
+                            {confirmDeleteIdx === itemIdx ? 'Wirklich löschen?' : ''}
+                          </Button>
+                        )}
+                      </div>
+                    </div>
 
+                    {/* Enthaltene Produkte & Module */}
+                    <div className="space-y-2 text-xs">
+                      {visibleCategories.map((cat) => {
+                        const sel = item.selections[cat.id]
+                        const selectedProds: Product[] = []
+                        if (cat.allow_multiselect && sel?.productIds) {
+                          sel.productIds.forEach((pId: string) => {
+                            const p = products.find((prod) => prod.id === pId)
+                            if (p) selectedProds.push(p)
+                          })
+                        } else if (sel?.productId) {
+                          const p = products.find((prod) => prod.id === sel.productId)
+                          if (p) selectedProds.push(p)
+                        }
+
+                        if (selectedProds.length === 0) return null
+
+                        const sortedProds = [...selectedProds].sort((a, b) => a.base_price - b.base_price)
+                        const freeLimit = cat.allow_multiselect ? cat.free_items_limit : 0
+
+                        return (
+                          <div key={cat.id} className="space-y-1 pl-1">
+                            <span className="text-slate-400 text-[10px] font-bold uppercase tracking-wider block">
+                              {cat.name}:
+                            </span>
+                            {sortedProds.map((prod, idx) => {
+                              const isFree = idx < freeLimit
                               const isAbo = item.billingInterval === 'monthly'
-                              const qty = item.moduleQuantities?.[mId] || 1
-                              const unitPrice = isAbo ? (modObj.monthly_price ?? modObj.price) : modObj.price
-                              const totalPrice = unitPrice * qty
+                              const displayPrice = isFree ? 0 : isAbo ? ((prod as any).monthly_price ?? prod.base_price) : prod.base_price
 
                               return (
-                                <div key={mId} className="flex justify-between text-slate-400 text-xs">
-                                  <span>+ {modObj.name} {qty > 1 ? `(${qty}x)` : ''}</span>
-                                  <span className="font-semibold text-slate-300">
-                                    {new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(totalPrice)}
+                                <div key={prod.id} className="flex justify-between items-center text-slate-200 pl-2">
+                                  <span className="flex items-center gap-1.5 truncate pr-2">
+                                    <CategoryIcon icon={cat.icon} className="w-3.5 h-3.5 text-primary shrink-0" />
+                                    <span className="truncate">{prod.name}</span>
+                                    {isFree && (
+                                      <span className="text-[9px] bg-green-500/20 text-green-400 px-1.5 py-0.2 rounded border border-green-500/30 font-bold uppercase shrink-0">
+                                        Inklusive
+                                      </span>
+                                    )}
+                                  </span>
+                                  <span className="font-bold text-xs text-white tabular-nums shrink-0">
+                                    {isFree ? '0,00 €' : fmt(displayPrice)}
                                   </span>
                                 </div>
                               )
                             })}
-                          </div>
-                        )}
-                      </div>
-                    )
-                  })}
-                </div>
-              ))}
 
-              {/* Gebühren & Zusatz-Positionen */}
+                            {/* Selected Module Chips */}
+                            {sel?.moduleIds && sel.moduleIds.length > 0 && (
+                              <div className="pl-6 space-y-1 pt-0.5">
+                                {sel.moduleIds.map((mId: string) => {
+                                  let modObj: any = null
+                                  products.forEach((p) => {
+                                    const found = p.modules?.find((m) => m.id === mId)
+                                    if (found) modObj = found
+                                  })
+                                  if (!modObj) return null
+
+                                  const isAbo = item.billingInterval === 'monthly'
+                                  const qty = item.moduleQuantities?.[mId] || 1
+                                  const unitPrice = isAbo ? (modObj.monthly_price ?? modObj.price) : modObj.price
+                                  const totalPrice = unitPrice * qty
+
+                                  return (
+                                    <div key={mId} className="flex justify-between text-slate-400 text-[11px]">
+                                      <span className="truncate pr-2">
+                                        + {modObj.name} {qty > 1 ? `(${qty}x)` : ''}
+                                      </span>
+                                      <span className="font-semibold text-slate-300 tabular-nums shrink-0">
+                                        {fmt(totalPrice)}
+                                      </span>
+                                    </div>
+                                  )
+                                })}
+                              </div>
+                            )}
+                          </div>
+                        )
+                      })}
+                    </div>
+                  </div>
+                ))
+              )}
+
+              {/* Service- & Zusatz-Positionen */}
               {linkedFeeProducts.length > 0 && (
-                <div className="border-t border-white/5 pt-4 space-y-2">
-                  <span className="text-slate-500 text-[10px] font-bold uppercase tracking-wider block">Service & Gebühren:</span>
-                  {linkedFeeProducts.map(fp => (
+                <div className="p-3.5 rounded-2xl bg-white/5 border border-white/10 space-y-2">
+                  <span className="text-slate-400 text-[10px] font-bold uppercase tracking-wider block">
+                    Service & Gebühren:
+                  </span>
+                  {linkedFeeProducts.map((fp) => (
                     <div key={fp.id} className="flex justify-between text-xs text-slate-300">
                       <span>{fp.name}</span>
-                      <span className="font-bold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(fp.base_price)}</span>
+                      <span className="font-bold text-white tabular-nums">{fmt(fp.base_price)}</span>
                     </div>
                   ))}
                 </div>
               )}
             </div>
+          </div>
 
-            {/* Summen-Berechnung */}
-            {oneTimeTotal > 0 ? (
-              <div className="space-y-2 border-t border-white/10 pt-5">
-                <div className="flex justify-between text-xs text-slate-400">
-                  <span>Netto-Gesamtbetrag:</span>
-                  <span className="font-semibold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(oneTimeNet)}</span>
-                </div>
-                <div className="flex justify-between text-xs text-slate-400">
-                  <span>zzgl. 19% MwSt.:</span>
-                  <span className="font-semibold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(oneTimeTax)}</span>
-                </div>
-                {updatePriceModifier.label && (
-                  <div className="text-xs text-green-400 font-semibold bg-green-500/10 p-2.5 rounded-xl border border-green-500/20 my-1">
-                    {updatePriceModifier.label}
+          {/* ─── RECHTES RASTER (lg:col-span-5) – Notizen, Bedingungen & Summen ─── */}
+          <div className="lg:col-span-5 space-y-5">
+            {/* Glassmorphism Preiskalkulation */}
+            <div className="p-5 rounded-2xl bg-slate-950/80 border border-white/10 space-y-3 shadow-xl">
+              <div className="flex items-center gap-2 pb-2 border-b border-white/10">
+                <CreditCard className="w-4 h-4 text-primary" />
+                <h3 className="text-xs font-bold text-white uppercase tracking-wider">
+                  Gesamte Preiskalkulation
+                </h3>
+              </div>
+
+              {oneTimeTotal > 0 && (
+                <div className="space-y-1.5 text-xs">
+                  <div className="flex justify-between text-slate-400">
+                    <span>Einmalig (netto):</span>
+                    <span className="tabular-nums font-mono text-white">{fmt(oneTimeNet)}</span>
+                  </div>
+                  <div className="flex justify-between text-slate-400">
+                    <span>zzgl. 19% MwSt.:</span>
+                    <span className="tabular-nums font-mono text-white">{fmt(oneTimeTax)}</span>
+                  </div>
+                  {updatePriceModifier?.label && (
+                    <div className="text-[11px] text-green-400 font-semibold bg-green-500/10 p-2 rounded-lg border border-green-500/20 my-1">
+                      {updatePriceModifier.label}
+                    </div>
+                  )}
+                  <div className="flex justify-between text-sm font-bold text-white pt-2 border-t border-white/5">
+                    <span>Einmalig gesamt (brutto):</span>
+                    <span className="tabular-nums font-mono text-primary font-extrabold text-base">{fmt(oneTimeGross)}</span>
                   </div>
-                )}
-                <div className="flex justify-between text-base font-bold text-primary pt-3 border-t border-white/5">
-                  <span>Gesamtbetrag (brutto):</span>
-                  <span className="font-bold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(oneTimeGross)}</span>
                 </div>
+              )}
+
+              {monthlyTotal > 0 && (
+                <div className={`space-y-1.5 text-xs ${oneTimeTotal > 0 ? 'pt-3 border-t border-white/10' : ''}`}>
+                  <div className="flex justify-between text-slate-400">
+                    <span>Monatlich (netto):</span>
+                    <span className="tabular-nums font-mono text-white">{fmt(monthlyNet)} / mtl.</span>
+                  </div>
+                  <div className="flex justify-between text-slate-400">
+                    <span>zzgl. 19% MwSt.:</span>
+                    <span className="tabular-nums font-mono text-white">{fmt(monthlyTax)} / mtl.</span>
+                  </div>
+                  <div className="flex justify-between text-sm font-bold text-white pt-2 border-t border-white/5">
+                    <span>Monatlich gesamt (brutto):</span>
+                    <span className="tabular-nums font-mono text-primary font-extrabold text-base">{fmt(monthlyGross)} / mtl.</span>
+                  </div>
+                </div>
+              )}
+            </div>
+
+            {/* Bestellnotizen */}
+            <div className="p-4 rounded-2xl bg-white/5 border border-white/10 space-y-2">
+              <Label htmlFor="order-notes" className="text-xs font-bold text-white uppercase tracking-wider flex items-center gap-1.5">
+                <MessageSquare className="w-3.5 h-3.5 text-primary" />
+                <span>Bestellnotizen / Bemerkungen (optional)</span>
+              </Label>
+              <textarea
+                id="order-notes"
+                rows={3}
+                value={orderNotes}
+                onChange={(e) => setOrderNotes(e.target.value)}
+                placeholder="Besondere Hinweise, Wunschtermine oder Ansprechpartner..."
+                className="w-full p-3 rounded-xl bg-slate-950/70 border border-white/10 text-xs text-white placeholder:text-slate-500 focus:border-primary focus:outline-none transition-colors resize-none scrollbar-thin scrollbar-thumb-slate-800 scrollbar-track-transparent"
+              />
+            </div>
+
+            {/* Lizenzbestimmungen & B2B-Workflow Checkbox */}
+            <div className="p-4 rounded-2xl bg-white/5 border border-white/10 space-y-3">
+              <div className="flex items-start gap-3">
+                <Checkbox
+                  id="terms-checkbox"
+                  checked={acceptedTerms}
+                  onCheckedChange={(checked) => setAcceptedTerms(checked === true)}
+                  className="rounded border-white/20 data-[state=checked]:bg-primary mt-0.5"
+                />
+                <Label htmlFor="terms-checkbox" className="text-xs text-slate-300 leading-relaxed cursor-pointer select-none">
+                  Ich bestätige die Richtigkeit der Angaben und akzeptiere die Lizenzvereinbarungen sowie die{' '}
+                  <a href="/datenschutz" target="_blank" rel="noopener noreferrer" className="underline hover:text-white text-primary">
+                    Datenschutzerklärung
+                  </a>.
+                </Label>
               </div>
-            ) : (
-              <div className="space-y-2 border-t border-white/10 pt-5">
-                <div className="flex justify-between text-xs text-slate-400">
-                  <span>Netto-Gesamtbetrag:</span>
-                  <span className="font-semibold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(monthlyNet)} / mtl.</span>
-                </div>
-                <div className="flex justify-between text-xs text-slate-400">
-                  <span>zzgl. 19% MwSt.:</span>
-                  <span className="font-semibold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(monthlyTax)} / mtl.</span>
-                </div>
-                <div className="flex justify-between text-base font-bold text-primary pt-3 border-t border-white/5">
-                  <span>Gesamtbetrag (brutto):</span>
-                  <span className="font-bold text-white">{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(monthlyGross)} / mtl.</span>
-                </div>
+
+              <div className="p-2.5 rounded-xl bg-primary/10 border border-primary/20 text-[11px] text-slate-300 flex items-center gap-2">
+                <FileText className="w-4 h-4 text-primary shrink-0" />
+                <span>B2B-Freigabe: Nach Absenden wird die Lizenzierungsanfrage geprüft und freigegeben.</span>
               </div>
-            )}
-          </CardContent>
-        </Card>
+            </div>
+          </div>
+        </div>
       </div>
-    </div>
+
+      {/* ─── 3. FIXED BOTTOM ACTION BAR (shrink-0) ─── */}
+      <div className="shrink-0 border-t border-white/10 bg-slate-950/90 backdrop-blur-md px-6 py-3.5 flex flex-col sm:flex-row items-center justify-between gap-3 z-10">
+        {/* Back Button */}
+        <Button
+          variant="outline"
+          onClick={prevStep}
+          className="w-full sm:w-auto border-white/10 text-white hover:bg-white/10 h-9 text-xs gap-1.5"
+        >
+          <ChevronLeft className="w-4 h-4" /> Zurück zu Schritt 3
+        </Button>
+
+        {/* Info Chip */}
+        <div className="flex items-center gap-2 px-3 py-1.5 rounded-xl bg-white/5 border border-white/10 text-white text-xs">
+          <span className="text-slate-400">Positionen:</span>
+          <strong className="text-white">{finalItemsToShow.length} Kassen</strong>
+          <span className="text-slate-600">|</span>
+          <span className="text-primary font-bold">
+            {oneTimeTotal > 0 ? fmt(oneTimeGross) : `${fmt(monthlyGross)} / mtl.`}
+          </span>
+        </div>
+
+        {/* Submit Button */}
+        <Button
+          onClick={handleSubmit}
+          disabled={isSubmitting || !acceptedTerms || finalItemsToShow.length === 0}
+          className="w-full sm:w-auto bg-primary hover:bg-primary/90 text-white font-bold px-6 shadow-lg shadow-primary/20 h-9 text-xs gap-2"
+        >
+          {isSubmitting ? (
+            <>
+              <Loader2 className="w-4 h-4 animate-spin" />
+              {initialOrder ? 'Anfrage wird aktualisiert...' : 'Anfrage wird übertragen...'}
+            </>
+          ) : (
+            <>
+              <Send className="w-3.5 h-3.5" />
+              {initialOrder ? 'Anfrage aktualisieren' : 'Anfrage verbindlich absenden'}
+            </>
+          )}
+        </Button>
+      </div>
+    </Card>
   )
 }