diff --git a/modules/customers/src/web/_archived/pages/list/use-customers-list-columns.tsx b/modules/customers/src/web/_archived/pages/list/use-customers-list-columns.tsx
deleted file mode 100644
index 988a32fc..00000000
--- a/modules/customers/src/web/_archived/pages/list/use-customers-list-columns.tsx
+++ /dev/null
@@ -1,230 +0,0 @@
-import { DataTableColumnHeader } from "@repo/rdx-ui/components";
-import {
-  Avatar,
-  AvatarFallback,
-  Badge,
-  Button,
-  DropdownMenu,
-  DropdownMenuContent,
-  DropdownMenuItem,
-  DropdownMenuLabel,
-  DropdownMenuSeparator,
-  DropdownMenuTrigger,
-} from "@repo/shadcn-ui/components";
-import type { ColumnDef } from "@tanstack/react-table";
-import {
-  Building2Icon,
-  EyeIcon,
-  MailIcon,
-  MoreHorizontalIcon,
-  PhoneIcon,
-  User2Icon,
-} from "lucide-react";
-import * as React from "react";
-
-import { useTranslation } from "../../../i18n";
-import { AddressCell } from "../../../list/ui/components/address-cell";
-import type { CustomerSummaryFormData } from "../../schemas";
-
-type CustomerActionHandlers = {
-  onEdit?: (customer: CustomerSummaryFormData) => void;
-  onView?: (customer: CustomerSummaryFormData) => void;
-  onDelete?: (customer: CustomerSummaryFormData) => void;
-};
-
-function shortId(id: string) {
-  return id ? `${id.slice(0, 4)}_${id.slice(-4)}` : "-";
-}
-
-const KindBadge = ({ isCompany }: { isCompany: boolean }) => (
-  <Badge className="gap-1 tracking-wide text-xs text-foreground/70" variant="outline">
-    {isCompany ? <Building2Icon className="size-3.5" /> : <User2Icon className="size-3.5" />}
-    {isCompany ? "Company" : "Person"}
-  </Badge>
-);
-
-export const Soft = ({ children }: { children: React.ReactNode }) => (
-  <span className="text-muted-foreground">{children}</span>
-);
-
-const ContactCell = ({ customer }: { customer: CustomerSummaryFormData }) => (
-  <div className="grid gap-1 text-foreground text-sm my-1.5">
-    {customer.email_primary && (
-      <div className="flex items-center gap-2">
-        <MailIcon className="size-3.5" />
-        <a className="group" href={`mailto:${customer.email_primary}`}>
-          {customer.email_primary}
-        </a>
-      </div>
-    )}
-
-    {customer.email_secondary && (
-      <div className="flex items-center gap-2">
-        <MailIcon className="size-3.5" />
-        {customer.email_secondary}
-      </div>
-    )}
-
-    <div className="flex flex-wrap items-center gap-2">
-      <PhoneIcon className="size-3.5 group" />
-      <span>{customer.phone_primary || customer.mobile_primary || <Soft>-</Soft>}</span>
-      {customer.phone_secondary && <Soft>• {customer.phone_secondary}</Soft>}
-      {customer.mobile_secondary && <Soft>• {customer.mobile_secondary}</Soft>}
-      {false}
-    </div>
-    {false}
-  </div>
-);
-
-function initials(name: string) {
-  const parts = name.trim().split(/\s+/).slice(0, 2);
-  return parts.map((p) => p[0]?.toUpperCase() ?? "").join("") || "?";
-}
-
-function safeHttp(url: string) {
-  if (!url) return "#";
-  if (/^https?:\/\//i.test(url)) return url;
-  return `https://${url}`;
-}
-
-export function useCustomersListColumns(
-  handlers: CustomerActionHandlers = {}
-): ColumnDef<CustomerSummaryFormData>[] {
-  const { t } = useTranslation();
-  const { onEdit, onView, onDelete } = handlers;
-
-  return React.useMemo<ColumnDef<CustomerSummaryFormData>[]>(
-    () => [
-      // Identidad + estado + metadatos (columna compuesta)
-      {
-        id: "customer",
-        header: ({ column }) => (
-          <DataTableColumnHeader
-            className="text-left"
-            column={column}
-            title={t("pages.list.grid_columns.customer")}
-          />
-        ),
-        accessorFn: (row) => row.name, // para ordenar/buscar por nombre
-        enableHiding: false,
-        size: 140,
-        minSize: 120,
-        cell: ({ row }) => {
-          const c = row.original;
-          const isCompany = String(c.is_company).toLowerCase() === "true";
-          return (
-            <div className="flex items-start gap-1 my-1.5">
-              <Avatar className="size-10 hidden">
-                <AvatarFallback aria-label={c.name}>{initials(c.name)}</AvatarFallback>
-              </Avatar>
-              <div className="min-w-0 grid gap-1">
-                <div className="flex flex-wrap items-center gap-2">
-                  <CustomerStatusBadge status={c.status} />{" "}
-                  <span className="font-medium truncate text-primary">{c.name}</span>
-                  {c.trade_name && <Soft>({c.trade_name})</Soft>}
-                </div>
-                <div className="flex flex-wrap items-center gap-2">
-                  {c.tin && <span className="font-base truncate">{c.tin}</span>}
-                  <KindBadge isCompany={isCompany} />
-                </div>
-              </div>
-            </div>
-          );
-        },
-      },
-
-      // Contacto (emails, teléfonos, web)
-      {
-        id: "contact",
-        header: ({ column }) => (
-          <DataTableColumnHeader
-            className="text-left"
-            column={column}
-            title={t("pages.list.grid_columns.contact")}
-          />
-        ),
-        accessorFn: (r) => `${r.email_primary} ${r.phone_primary} ${r.mobile_primary} ${r.website}`,
-        size: 140,
-        minSize: 120,
-        cell: ({ row }) => <ContactCell customer={row.original} />,
-      },
-
-      // Dirección (múltiples campos en bloque)
-      {
-        id: "address",
-        header: t("pages.list.grid_columns.address"),
-        accessorFn: (r) =>
-          `${r.street} ${r.street2} ${r.city} ${r.postal_code} ${r.province} ${r.country}`,
-        size: 140,
-        minSize: 120,
-        cell: ({ row }) => <AddressCell customer={row.original} />,
-      },
-
-      // Acciones
-      {
-        id: "actions",
-        header: ({ column }) => (
-          <DataTableColumnHeader
-            className="text-right"
-            column={column}
-            title={t("pages.list.grid_columns.actions")}
-          />
-        ),
-        size: 64,
-        minSize: 64,
-        enableSorting: false,
-        enableHiding: false,
-        cell: ({ row }) => {
-          const customer = row.original;
-          const { website, email_primary } = customer;
-          return (
-            <div className="flex justify-end">
-              <div className="flex items-center gap-1">
-                <Button
-                  aria-label="Ver cliente"
-                  onClick={() => onView?.(customer)}
-                  size="icon"
-                  variant="ghost"
-                >
-                  <EyeIcon className="size-4" />
-                </Button>
-                {0 === false && (
-                  <DropdownMenu>
-                    <DropdownMenuTrigger asChild>
-                      <Button aria-label="More actions" size="icon" variant="ghost">
-                        <MoreHorizontalIcon className="size-4" />
-                      </Button>
-                    </DropdownMenuTrigger>
-                    <DropdownMenuContent align="end">
-                      <DropdownMenuLabel>Actions</DropdownMenuLabel>
-                      <DropdownMenuSeparator />
-                      <DropdownMenuItem onClick={() => onView?.(customer)}>Open</DropdownMenuItem>
-                      <DropdownMenuItem onClick={() => onEdit?.(customer)}>Edit</DropdownMenuItem>
-                      <DropdownMenuSeparator />
-                      <DropdownMenuItem onClick={() => window.open(safeHttp(website), "_blank")}>
-                        Visit website
-                      </DropdownMenuItem>
-                      <DropdownMenuItem
-                        onClick={() => navigator.clipboard.writeText(email_primary)}
-                      >
-                        Copy email
-                      </DropdownMenuItem>
-                      <DropdownMenuSeparator />
-                      <DropdownMenuItem
-                        className="text-destructive"
-                        onClick={() => onDelete?.(customer)}
-                      >
-                        Delete
-                      </DropdownMenuItem>
-                    </DropdownMenuContent>
-                  </DropdownMenu>
-                )}
-              </div>
-            </div>
-          );
-        },
-      },
-    ],
-    [t, onEdit, onView, onDelete]
-  );
-}
diff --git a/modules/customers/src/web/list/controllers/use-customer-sheet.controller.ts b/modules/customers/src/web/list/controllers/use-customer-sheet.controller.ts
deleted file mode 100644
index ccf0364f..00000000
--- a/modules/customers/src/web/list/controllers/use-customer-sheet.controller.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-import { useSheetState } from "@repo/rdx-ui/hooks";
-import { useCallback, useState } from "react";
-
-import { useCustomerGetQuery } from "../../shared/hooks";
-
-export const useCustomerSheetController = (initialCustomerId = "") => {
-  const [customerId, setCustomerId] = useState(initialCustomerId);
-  const sheetState = useSheetState({
-    defaultOpen: false,
-    defaultPinned: false,
-    defaultMode: "view",
-  });
-
-  const query = useCustomerGetQuery(customerId, {
-    enabled: Boolean(customerId),
-  });
-
-  const openCustomerSheet = useCallback(
-    (nextCustomerId: string) => {
-      setCustomerId(nextCustomerId);
-      sheetState.openInMode("view");
-    },
-    [sheetState]
-  );
-
-  const closeCustomerSheet = useCallback(() => {
-    sheetState.closeSheet();
-  }, [sheetState]);
-
-  return {
-    customer: query.data,
-    customerId,
-    setCustomerId,
-
-    openCustomerSheet,
-    closeCustomerSheet,
-
-    isLoading: query.isLoading,
-    isFetching: query.isFetching,
-
-    isError: query.isError,
-    error: query.error,
-
-    refetch: query.refetch,
-
-    sheetState,
-  };
-};
diff --git a/modules/customers/src/web/list/controllers/use-customer-summary-panel.controller.ts b/modules/customers/src/web/list/controllers/use-customer-summary-panel.controller.ts
new file mode 100644
index 00000000..399edc2f
--- /dev/null
+++ b/modules/customers/src/web/list/controllers/use-customer-summary-panel.controller.ts
@@ -0,0 +1,53 @@
+import { type RightPanelMode, useRightPanelState } from "@repo/rdx-ui/hooks";
+import { useCallback, useState } from "react";
+
+import { useCustomerGetQuery } from "../../shared";
+
+interface Options {
+  initialCustomerId?: string;
+  initialMode?: RightPanelMode;
+  initialOpen?: boolean;
+}
+
+export const useCustomerSummaryPanelController = ({
+  initialCustomerId = "",
+  initialMode = "view",
+  initialOpen = false,
+}: Options = {}) => {
+  const [customerId, setCustomerId] = useState(initialCustomerId);
+
+  const panelState = useRightPanelState({
+    defaultMode: initialMode,
+    defaultVisibility: initialOpen ? "temporary" : "hidden",
+  });
+
+  const query = useCustomerGetQuery(customerId, {
+    enabled: Boolean(customerId),
+  });
+
+  const openCustomerPanel = useCallback(
+    (nextCustomerId: string, mode: RightPanelMode = "view") => {
+      setCustomerId(nextCustomerId);
+
+      if (panelState.isPinned) {
+        panelState.openPersistent(mode);
+      } else {
+        panelState.openTemporary(mode);
+      }
+    },
+    [panelState.isPinned, panelState.openTemporary, panelState.openPersistent]
+  );
+
+  const closePanel = useCallback(() => {
+    panelState.close();
+    setCustomerId("");
+  }, [panelState.close]);
+
+  return {
+    customer: query.data,
+    customerId,
+    openCustomerPanel,
+    closePanel,
+    panelState,
+  };
+};
diff --git a/modules/customers/src/web/list/controllers/use-list-customers-page.controller.ts b/modules/customers/src/web/list/controllers/use-list-customers-page.controller.ts
index 7d115b21..cb0809b4 100644
--- a/modules/customers/src/web/list/controllers/use-list-customers-page.controller.ts
+++ b/modules/customers/src/web/list/controllers/use-list-customers-page.controller.ts
@@ -1,13 +1,48 @@
-import { useCustomerSheetController } from "./use-customer-sheet.controller";
+import type { RightPanelMode } from "@repo/rdx-ui/hooks";
+import { useMemo } from "react";
+import { useSearchParams } from "react-router-dom";
+
+import { useCustomerSummaryPanelController } from "./use-customer-summary-panel.controller";
 import { useListCustomersController } from "./use-list-customers.controller";
 
-export function useListCustomersPageController() {
+export const useListCustomersPageController = () => {
   const listCtrl = useListCustomersController();
 
-  const sheetCtrl = useCustomerSheetController();
+  const [searchParams] = useSearchParams();
+
+  // -----------------------------
+  // URL → estado inicial (sync)
+  // -----------------------------
+  const initialPanelState = useMemo(() => {
+    const customerId = searchParams.get("customerId");
+    const panelMode = searchParams.get("panel") as RightPanelMode | null;
+
+    if (!customerId) {
+      return {
+        customerId: "",
+        mode: "view" as RightPanelMode,
+        open: false,
+      };
+    }
+
+    return {
+      customerId,
+      mode: panelMode ?? "view",
+      open: true,
+    };
+  }, [searchParams]);
+
+  // -----------------------------
+  // Controller con estado inicial
+  // -----------------------------
+  const panelCtrl = useCustomerSummaryPanelController({
+    initialCustomerId: initialPanelState.customerId,
+    initialMode: initialPanelState.mode,
+    initialOpen: initialPanelState.open,
+  });
 
   return {
     listCtrl,
-    sheetCtrl,
+    panelCtrl,
   };
-}
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-sheet/customer-sheet.tsx b/modules/customers/src/web/list/ui/blocks/customer-sheet/customer-sheet.tsx
deleted file mode 100644
index 0547cee0..00000000
--- a/modules/customers/src/web/list/ui/blocks/customer-sheet/customer-sheet.tsx
+++ /dev/null
@@ -1,400 +0,0 @@
-import {
-  Avatar,
-  AvatarFallback,
-  Badge,
-  Button,
-  Separator,
-  Sheet,
-  SheetContent,
-  SheetTitle,
-} from "@repo/shadcn-ui/components";
-import { cn } from "@repo/shadcn-ui/lib/utils";
-import {
-  Building2Icon,
-  CopyIcon,
-  ExternalLinkIcon,
-  FileTextIcon,
-  GlobeIcon,
-  MailIcon,
-  MapPinIcon,
-  PencilIcon,
-  PhoneIcon,
-  PinIcon,
-  PinOffIcon,
-  TrendingUpIcon,
-  UserIcon,
-  XIcon,
-} from "lucide-react";
-
-import type { Customer } from "../../../../shared";
-
-interface CustomerSheetProps {
-  customer?: Customer;
-  open: boolean;
-  onOpenChange: (open: boolean) => void;
-  pinned: boolean;
-  onPinnedChange: (pinned: boolean) => void;
-  onEdit?: (customer: Customer) => void;
-}
-
-// Datos de ejemplo ERP para demostración
-const mockERPData = {
-  totalPurchases: 45750.8,
-  purchasesThisYear: 12350.25,
-  lastInvoices: [
-    {
-      id: "1",
-      number: "FAC-2024-0156",
-      date: "2024-01-15",
-      amount: 1250.0,
-      status: "paid" as const,
-    },
-    {
-      id: "2",
-      number: "FAC-2024-0142",
-      date: "2024-01-08",
-      amount: 890.5,
-      status: "paid" as const,
-    },
-    {
-      id: "3",
-      number: "FAC-2024-0128",
-      date: "2023-12-22",
-      amount: 2100.0,
-      status: "pending" as const,
-    },
-    {
-      id: "4",
-      number: "FAC-2023-0098",
-      date: "2023-11-30",
-      amount: 750.25,
-      status: "overdue" as const,
-    },
-  ],
-};
-
-export const CustomerSheet = ({
-  customer,
-  open,
-  onOpenChange,
-  pinned,
-  onPinnedChange,
-  onEdit,
-}: CustomerSheetProps) => {
-  const getInitials = (name: string) => {
-    return name
-      .split(" ")
-      .map((n) => n[0])
-      .join("")
-      .toUpperCase()
-      .slice(0, 2);
-  };
-
-  const formatCurrency = (amount: number) => {
-    return new Intl.NumberFormat("es-ES", {
-      style: "currency",
-      currency: "EUR",
-    }).format(amount);
-  };
-
-  const formatDate = (dateString: string) => {
-    return new Date(dateString).toLocaleDateString("es-ES", {
-      day: "2-digit",
-      month: "short",
-      year: "numeric",
-    });
-  };
-
-  const getGoogleMapsUrl = (customer: Customer) => {
-    const fullAddress = `${customer.street}, ${customer.postalCode} ${customer.city}, ${customer.province}, ${customer.country}`;
-    return `https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(fullAddress)}`;
-  };
-
-  const copyToClipboard = (text: string) => {
-    navigator.clipboard.writeText(text);
-  };
-
-  const getInvoiceStatusBadge = (status: "paid" | "pending" | "overdue") => {
-    switch (status) {
-      case "paid":
-        return (
-          <Badge className="bg-emerald-50 text-emerald-700 border-emerald-200" variant="outline">
-            Pagada
-          </Badge>
-        );
-      case "pending":
-        return (
-          <Badge className="bg-amber-50 text-amber-700 border-amber-200" variant="outline">
-            Pendiente
-          </Badge>
-        );
-      case "overdue":
-        return (
-          <Badge className="bg-red-50 text-red-700 border-red-200" variant="outline">
-            Vencida
-          </Badge>
-        );
-    }
-  };
-
-  // Combinar datos del cliente con datos mock de ERP
-  const customerWithERP = { ...customer, ...mockERPData };
-
-  return (
-    <Sheet modal={!pinned} onOpenChange={onOpenChange} open={open}>
-      <SheetContent
-        className={cn("flex w-full flex-col p-0 sm:max-w-md", pinned && "shadow-none")}
-        showCloseButton={false}
-        side="right"
-      >
-        <div className="flex items-center justify-between border-b px-4 py-3">
-          <SheetTitle className="sr-only">Ficha de cliente</SheetTitle>
-          <div className="flex items-center gap-2">
-            <Button
-              onClick={() => onPinnedChange(!pinned)}
-              size="icon-sm"
-              title={pinned ? "Desfijar panel" : "Fijar panel"}
-              variant="ghost"
-            >
-              {pinned ? <PinOffIcon className="size-4" /> : <PinIcon className="size-4" />}
-            </Button>
-          </div>
-          <div className="flex items-center gap-1">
-            <Button onClick={() => null /*onEdit?.(customer?)*/} size="icon-sm" variant="ghost">
-              <PencilIcon className="size-4" />
-              <span className="sr-only">Editar</span>
-            </Button>
-            {!pinned && (
-              <Button onClick={() => onOpenChange(false)} size="icon-sm" variant="ghost">
-                <XIcon className="size-4" />
-                <span className="sr-only">Cerrar</span>
-              </Button>
-            )}
-          </div>
-        </div>
-
-        {/* Contenido scrolleable */}
-        {customer ? (
-          <div className="flex-1 overflow-y-auto">
-            {/* Info principal del cliente */}
-            <div className="p-4">
-              <div className="flex items-start gap-4">
-                <Avatar className="size-14 border-2 border-background shadow-md">
-                  <AvatarFallback
-                    className={
-                      customer.status === "active"
-                        ? "bg-emerald-100 text-emerald-700 text-lg"
-                        : "bg-muted text-muted-foreground text-lg"
-                    }
-                  >
-                    {getInitials(customer.name)}
-                  </AvatarFallback>
-                </Avatar>
-                <div className="flex-1 min-w-0">
-                  <div className="flex items-center gap-2">
-                    <h2 className="text-lg font-semibold text-foreground truncate">
-                      {customer.name}
-                    </h2>
-                    <Badge
-                      className="shrink-0"
-                      variant={customer.status === "active" ? "default" : "secondary"}
-                    >
-                      {customer.status === "active" ? "Activo" : "Inactivo"}
-                    </Badge>
-                  </div>
-                  {customer.tradeName && (
-                    <p className="text-sm text-muted-foreground truncate">{customer.tradeName}</p>
-                  )}
-                  <div className="mt-2 flex items-center gap-2">
-                    <Badge className="gap-1" variant="outline">
-                      {customer.isCompany ? (
-                        <>
-                          <Building2Icon className="size-3" />
-                          Empresa
-                        </>
-                      ) : (
-                        <>
-                          <UserIcon className="size-3" />
-                          Particular
-                        </>
-                      )}
-                    </Badge>
-                    <button
-                      className="flex items-center gap-1 text-xs font-mono text-muted-foreground hover:text-foreground transition-colors"
-                      onClick={() => copyToClipboard(customer.tin)}
-                      title="Copiar NIF/CIF"
-                      type="button"
-                    >
-                      {customer.tin}
-                      <CopyIcon className="size-3" />
-                    </button>
-                  </div>
-                </div>
-              </div>
-            </div>
-
-            <Separator />
-
-            {/* Datos de contacto */}
-            <div className="p-4">
-              <h3 className="text-sm font-medium text-foreground mb-3">Contacto</h3>
-              <div className="space-y-2.5">
-                <a
-                  className="flex items-center gap-3 text-sm text-muted-foreground hover:text-foreground transition-colors"
-                  href={`mailto:${customer.primaryEmail}`}
-                >
-                  <MailIcon className="size-4 shrink-0" />
-                  <span className="truncate">{customer.primaryEmail}</span>
-                </a>
-                {customer.secondaryEmail && (
-                  <a
-                    className="flex items-center gap-3 text-sm text-muted-foreground hover:text-foreground transition-colors"
-                    href={`mailto:${customer.secondaryEmail}`}
-                  >
-                    <MailIcon className="size-4 shrink-0" />
-                    <span className="truncate">{customer.secondaryEmail}</span>
-                  </a>
-                )}
-                {customer.primaryPhone && (
-                  <a
-                    className="flex items-center gap-3 text-sm text-muted-foreground hover:text-foreground transition-colors"
-                    href={`tel:${customer.primaryPhone}`}
-                  >
-                    <PhoneIcon className="size-4 shrink-0" />
-                    <span>{customer.primaryPhone}</span>
-                  </a>
-                )}
-                {customerWithERP.primaryMobile && (
-                  <a
-                    className="flex items-center gap-3 text-sm text-muted-foreground hover:text-foreground transition-colors"
-                    href={`tel:${customerWithERP.primaryMobile}`}
-                  >
-                    <PhoneIcon className="size-4 shrink-0" />
-                    <span>{customerWithERP.primaryMobile}</span>
-                  </a>
-                )}
-                {customerWithERP.website && (
-                  <a
-                    className="flex items-center gap-3 text-sm text-muted-foreground hover:text-foreground transition-colors"
-                    href={customerWithERP.website}
-                    rel="noopener noreferrer"
-                    target="_blank"
-                  >
-                    <GlobeIcon className="size-4 shrink-0" />
-                    <span className="truncate">{customerWithERP.website}</span>
-                    <ExternalLinkIcon className="size-3 shrink-0" />
-                  </a>
-                )}
-              </div>
-            </div>
-
-            <Separator />
-
-            {/* Dirección */}
-            <div className="p-4">
-              <h3 className="text-sm font-medium text-foreground mb-3">Dirección</h3>
-              <a
-                className="group flex items-start gap-3 rounded-lg p-2 -m-2 transition-colors hover:bg-muted"
-                href={getGoogleMapsUrl(customer)}
-                rel="noopener noreferrer"
-                target="_blank"
-              >
-                <MapPinIcon className="size-4 shrink-0 mt-0.5 text-muted-foreground group-hover:text-primary" />
-                <div className="text-sm text-muted-foreground group-hover:text-foreground">
-                  <p>{customer.street}</p>
-                  <p>
-                    {customer.postalCode} {customer.city}
-                  </p>
-                  <p>
-                    {customer.province}, {customer.country}
-                  </p>
-                </div>
-                <ExternalLinkIcon className="size-3 shrink-0 mt-0.5 text-muted-foreground opacity-0 group-hover:opacity-100" />
-              </a>
-            </div>
-
-            <Separator />
-
-            {/* Volumen de compras */}
-            <div className="p-4">
-              <h3 className="text-sm font-medium text-foreground mb-3 flex items-center gap-2">
-                <TrendingUpIcon className="size-4" />
-                Volumen de compras
-              </h3>
-              <div className="grid grid-cols-2 gap-3">
-                <div className="rounded-lg border bg-muted/50 p-3">
-                  <p className="text-xs text-muted-foreground">Total histórico</p>
-                  <p className="text-lg font-semibold text-foreground">
-                    {formatCurrency(customerWithERP.totalPurchases || 0)}
-                  </p>
-                </div>
-                <div className="rounded-lg border bg-muted/50 p-3">
-                  <p className="text-xs text-muted-foreground">Este año</p>
-                  <p className="text-lg font-semibold text-foreground">
-                    {formatCurrency(customerWithERP.purchasesThisYear || 0)}
-                  </p>
-                </div>
-              </div>
-            </div>
-
-            <Separator />
-
-            {/* Últimas facturas */}
-            <div className="p-4">
-              <h3 className="text-sm font-medium text-foreground mb-3 flex items-center gap-2">
-                <FileTextIcon className="size-4" />
-                Últimas facturas
-              </h3>
-              <div className="space-y-2">
-                {customerWithERP.lastInvoices?.map((invoice) => (
-                  <button
-                    className="w-full flex items-center justify-between rounded-lg border p-3 text-left transition-colors hover:bg-muted"
-                    key={invoice.id}
-                    onClick={() => console.log("Ver factura:", invoice.number)}
-                    type="button"
-                  >
-                    <div className="min-w-0">
-                      <p className="text-sm font-medium text-foreground truncate">
-                        {invoice.number}
-                      </p>
-                      <p className="text-xs text-muted-foreground">{formatDate(invoice.date)}</p>
-                    </div>
-                    <div className="flex items-center gap-2 shrink-0">
-                      <span className="text-sm font-medium">{formatCurrency(invoice.amount)}</span>
-                      {getInvoiceStatusBadge(invoice.status)}
-                    </div>
-                  </button>
-                ))}
-              </div>
-              <Button className="w-full mt-3" size="sm" variant="outline">
-                Ver todas las facturas
-              </Button>
-            </div>
-          </div>
-        ) : (
-          <div className="flex flex-1 items-center justify-center p-4">
-            <p className="text-sm text-muted-foreground">Selecciona un cliente</p>
-          </div>
-        )}
-
-        {/* Footer con acciones */}
-        <div className="border-t p-4">
-          <div className="flex gap-2">
-            <Button
-              className="flex-1"
-              onClick={() => console.log("Crear proforma para:", customer?.id)}
-              variant="outline"
-            >
-              <FileTextIcon className="size-4 mr-2" />
-              Nueva proforma
-            </Button>
-            <Button className="flex-1" onClick={() => null /*onEdit?.(customer?)*/}>
-              <PencilIcon className="size-4 mr-2" />
-              Editar cliente
-            </Button>
-          </div>
-        </div>
-      </SheetContent>
-    </Sheet>
-  );
-};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-sheet/index.ts b/modules/customers/src/web/list/ui/blocks/customer-sheet/index.ts
deleted file mode 100644
index 1ca7fe4b..00000000
--- a/modules/customers/src/web/list/ui/blocks/customer-sheet/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from "./customer-sheet";
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-address-section.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-address-section.tsx
new file mode 100644
index 00000000..3e42afa0
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-address-section.tsx
@@ -0,0 +1,26 @@
+import { ExternalLinkIcon, MapPinIcon } from "lucide-react";
+
+import type { Customer } from "../../../../shared";
+
+export const CustomerAddressSection = ({ customer }: { customer: Customer }) => {
+  const url = `https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(
+    `${customer.street}, ${customer.city}`
+  )}`;
+
+  return (
+    <div className="p-4">
+      <h3 className="mb-3 text-sm font-medium">Dirección</h3>
+
+      <a className="flex gap-3 text-sm" href={url} rel="noopener noreferrer" target="_blank">
+        <MapPinIcon className="size-4 mt-0.5" />
+        <div>
+          <p>{customer.street}</p>
+          <p>
+            {customer.postalCode} {customer.city}
+          </p>
+        </div>
+        <ExternalLinkIcon className="size-3" />
+      </a>
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-contact-section.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-contact-section.tsx
new file mode 100644
index 00000000..4046390f
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-contact-section.tsx
@@ -0,0 +1,32 @@
+import { MailIcon, PhoneIcon } from "lucide-react";
+
+import type { Customer } from "../../../../shared";
+
+export const CustomerContactSection = ({ customer }: { customer: Customer }) => {
+  return (
+    <div className="p-4">
+      <h3 className="mb-3 text-sm font-medium">Contacto</h3>
+
+      <div className="space-y-2.5">
+        <a className="flex items-center gap-3 text-sm" href={`mailto:${customer.primaryEmail}`}>
+          <MailIcon className="size-4" />
+          <span className="truncate">{customer.primaryEmail}</span>
+        </a>
+
+        {customer.secondaryEmail && (
+          <a className="flex items-center gap-3 text-sm" href={`mailto:${customer.secondaryEmail}`}>
+            <MailIcon className="size-4" />
+            <span className="truncate">{customer.secondaryEmail}</span>
+          </a>
+        )}
+
+        {customer.primaryPhone && (
+          <a className="flex items-center gap-3 text-sm" href={`tel:${customer.primaryPhone}`}>
+            <PhoneIcon className="size-4" />
+            <span>{customer.primaryPhone}</span>
+          </a>
+        )}
+      </div>
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-footer-actions.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-footer-actions.tsx
new file mode 100644
index 00000000..e119070c
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-footer-actions.tsx
@@ -0,0 +1,27 @@
+import { Button } from "@repo/shadcn-ui/components";
+
+import type { Customer } from "../../../../shared";
+
+export const CustomerFooterActions = ({
+  customer,
+  onCreateInvoice,
+  onEdit,
+}: {
+  customer: Customer;
+  onCreateInvoice?: (customer: Customer) => void;
+  onEdit?: (customer: Customer) => void;
+}) => {
+  return (
+    <div className="border-t p-4">
+      <div className="flex gap-2">
+        <Button className="flex-1" onClick={() => onCreateInvoice?.(customer)} variant="outline">
+          Nueva factura
+        </Button>
+
+        <Button className="flex-1" onClick={() => onEdit?.(customer)}>
+          Editar cliente
+        </Button>
+      </div>
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-header.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-header.tsx
new file mode 100644
index 00000000..25a98955
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-header.tsx
@@ -0,0 +1,63 @@
+import { Avatar, AvatarFallback, Badge } from "@repo/shadcn-ui/components";
+import { Building2Icon, CopyIcon, UserIcon } from "lucide-react";
+
+import type { Customer } from "../../../../shared";
+import { Initials } from "../../components";
+
+export const CustomerHeader = ({ customer }: { customer: Customer }) => {
+  return (
+    <div className="p-4">
+      <div className="flex items-start gap-4">
+        <Avatar className="size-10 border-2 border-background shadow-sm">
+          <AvatarFallback
+            className={
+              customer.status === "active"
+                ? "bg-blue-100 text-blue-700"
+                : "bg-muted text-muted-foreground"
+            }
+          >
+            <Initials name={customer.name} />
+          </AvatarFallback>
+        </Avatar>
+
+        <div className="min-w-0 flex-1">
+          <div className="flex items-center gap-2">
+            <h2 className="truncate text-lg font-semibold">{customer.name}</h2>
+            <Badge variant={customer.status === "active" ? "default" : "secondary"}>
+              {customer.status === "active" ? "Activo" : "Inactivo"}
+            </Badge>
+          </div>
+
+          {customer.tradeName && (
+            <p className="truncate text-sm text-muted-foreground">{customer.tradeName}</p>
+          )}
+
+          <div className="mt-2 flex items-center gap-2">
+            <Badge className="gap-1" variant="outline">
+              {customer.isCompany ? (
+                <>
+                  <Building2Icon className="size-3" />
+                  Empresa
+                </>
+              ) : (
+                <>
+                  <UserIcon className="size-3" />
+                  Particular
+                </>
+              )}
+            </Badge>
+
+            <button
+              className="flex items-center gap-1 text-xs font-mono text-muted-foreground hover:text-foreground"
+              onClick={() => navigator.clipboard.writeText(customer.tin)}
+              type="button"
+            >
+              {customer.tin}
+              <CopyIcon className="size-3" />
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-proformas-section.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-proformas-section.tsx
new file mode 100644
index 00000000..cb4da1fb
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-proformas-section.tsx
@@ -0,0 +1,83 @@
+import { Badge, Button } from "@repo/shadcn-ui/components";
+import { FileTextIcon } from "lucide-react";
+
+const getInvoiceStatusBadge = (status: "paid" | "pending" | "overdue") => {
+  switch (status) {
+    case "paid":
+      return (
+        <Badge className="bg-emerald-50 text-emerald-700 border-emerald-200" variant="outline">
+          Pagada
+        </Badge>
+      );
+    case "pending":
+      return (
+        <Badge className="bg-amber-50 text-amber-700 border-amber-200" variant="outline">
+          Pendiente
+        </Badge>
+      );
+    case "overdue":
+      return (
+        <Badge className="bg-red-50 text-red-700 border-red-200" variant="outline">
+          Vencida
+        </Badge>
+      );
+  }
+};
+
+const formatCurrency = (amount: number) => {
+  return new Intl.NumberFormat("es-ES", {
+    style: "currency",
+    currency: "EUR",
+  }).format(amount);
+};
+
+const formatDate = (dateString: string) => {
+  return new Date(dateString).toLocaleDateString("es-ES", {
+    day: "2-digit",
+    month: "short",
+    year: "numeric",
+  });
+};
+
+export const CustomerProformasSection = ({
+  proformas,
+  onProformaClick,
+}: {
+  proformas: {
+    id: string;
+    number: string;
+    date: string;
+    amount: number;
+    status: "paid" | "pending" | "overdue";
+  }[];
+  onProformaClick?: (id: string) => void;
+}) => {
+  return (
+    <div className="p-4">
+      <h3 className="text-sm font-medium text-foreground mb-3 flex items-center gap-2">
+        <FileTextIcon className="size-4" />
+        Últimas proformas
+      </h3>
+
+      <div className="space-y-2">
+        {proformas.map((pro) => (
+          <Button
+            className="w-full flex items-center justify-between text-left transition-colors h-16 cursor-pointer"
+            key={pro.id}
+            onClick={() => onProformaClick?.(pro.id)}
+            variant={"outline"}
+          >
+            <div className="min-w-0">
+              <p className="text-sm font-medium text-foreground truncate">{pro.number}</p>
+              <p className="text-xs text-muted-foreground">{formatDate(pro.date)}</p>
+            </div>
+            <div className="flex items-center gap-2 shrink-0">
+              <span className="text-sm font-medium">{formatCurrency(pro.amount)}</span>
+              {getInvoiceStatusBadge(pro.status)}
+            </div>
+          </Button>
+        ))}
+      </div>
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-stats-section.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-stats-section.tsx
new file mode 100644
index 00000000..c3f6e143
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-stats-section.tsx
@@ -0,0 +1,33 @@
+import { TrendingUpIcon } from "lucide-react";
+
+export const CustomerStatsSection = ({
+  stats,
+}: {
+  stats: { currency: string; totalPurchases: number; purchasesThisYear: number };
+}) => {
+  const formatCurrency = (value: number) =>
+    new Intl.NumberFormat("es-ES", { style: "currency", currency: stats.currency }).format(value);
+
+  return (
+    <div className="p-4">
+      <h3 className="text-sm font-medium text-foreground mb-3 flex items-center gap-2">
+        <TrendingUpIcon className="size-4" />
+        Volumen de compras
+      </h3>
+      <div className="grid grid-cols-2 gap-3">
+        <div className="rounded-lg border bg-muted/50 p-3">
+          <p className="text-xs text-muted-foreground">Total histórico</p>
+          <p className="text-lg font-semibold text-foreground">
+            {formatCurrency(stats.totalPurchases || 0)}
+          </p>
+        </div>
+        <div className="rounded-lg border bg-muted/50 p-3">
+          <p className="text-xs text-muted-foreground">Este año</p>
+          <p className="text-lg font-semibold text-foreground">
+            {formatCurrency(stats.purchasesThisYear || 0)}
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-summary-content.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-summary-content.tsx
new file mode 100644
index 00000000..e0f3ec8b
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-summary-content.tsx
@@ -0,0 +1,68 @@
+import { Separator } from "@repo/shadcn-ui/components";
+
+import type { Customer } from "../../../../shared";
+
+import { CustomerAddressSection } from "./customer-address-section";
+import { CustomerContactSection } from "./customer-contact-section";
+import { CustomerFooterActions } from "./customer-footer-actions";
+import { CustomerHeader } from "./customer-header";
+import { CustomerProformasSection } from "./customer-proformas-section";
+import { CustomerStatsSection } from "./customer-stats-section";
+
+interface CustomerSummaryContentProps {
+  customer: Customer;
+
+  stats: {
+    totalPurchases: number;
+    purchasesThisYear: number;
+  };
+
+  proformas: {
+    id: string;
+    number: string;
+    date: string;
+    amount: number;
+    status: "paid" | "pending" | "overdue";
+  }[];
+
+  onEdit?: (customer: Customer) => void;
+  onCreateInvoice?: (customer: Customer) => void;
+  onProformaClick?: (proformaId: string) => void;
+}
+
+export const CustomerSummaryContent = ({
+  customer,
+  stats,
+  proformas,
+  onEdit,
+  onCreateInvoice,
+  onProformaClick,
+}: CustomerSummaryContentProps) => {
+  return (
+    <div className="flex flex-col">
+      <CustomerHeader customer={customer} />
+
+      <Separator />
+
+      <CustomerContactSection customer={customer} />
+
+      <Separator />
+
+      <CustomerAddressSection customer={customer} />
+
+      <Separator />
+
+      <CustomerStatsSection stats={{ ...stats, currency: customer.currencyCode }} />
+
+      <Separator />
+
+      <CustomerProformasSection onProformaClick={onProformaClick} proformas={proformas} />
+
+      <CustomerFooterActions
+        customer={customer}
+        onCreateInvoice={onCreateInvoice}
+        onEdit={onEdit}
+      />
+    </div>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-summary-panel.tsx b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-summary-panel.tsx
new file mode 100644
index 00000000..f78067ff
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/customer-summary-panel.tsx
@@ -0,0 +1,123 @@
+import { RightPanel } from "@repo/rdx-ui/components";
+import type { RightPanelMode, RightPanelVisibility } from "@repo/rdx-ui/hooks";
+import { Button } from "@repo/shadcn-ui/components";
+import { cn } from "@repo/shadcn-ui/lib/utils";
+import { PencilIcon, PinIcon, PinOffIcon } from "lucide-react";
+
+import type { Customer } from "../../../../shared";
+
+import { CustomerSummaryContent } from "./customer-summary-content";
+
+const mockERPData = {
+  totalPurchases: 45750.8,
+  purchasesThisYear: 12350.25,
+  lastInvoices: [
+    {
+      id: "1",
+      number: "FAC-2024-0156",
+      date: "2024-01-15",
+      amount: 1250.0,
+      status: "paid" as const,
+    },
+    {
+      id: "2",
+      number: "FAC-2024-0142",
+      date: "2024-01-08",
+      amount: 890.5,
+      status: "paid" as const,
+    },
+    {
+      id: "3",
+      number: "FAC-2024-0128",
+      date: "2023-12-22",
+      amount: 2100.0,
+      status: "pending" as const,
+    },
+    {
+      id: "4",
+      number: "FAC-2023-0098",
+      date: "2023-11-30",
+      amount: 750.25,
+      status: "overdue" as const,
+    },
+  ],
+};
+
+interface CustomerSummaryPanelProps {
+  customer?: Customer;
+
+  open: boolean;
+  visibility: RightPanelVisibility;
+  mode: RightPanelMode;
+
+  onOpenChange: (open: boolean) => void;
+  onTogglePinned: () => void;
+
+  onEdit?: (customer: Customer) => void;
+  className?: string;
+}
+
+export const CustomerSummaryPanel = ({
+  customer,
+  open,
+  visibility,
+  mode,
+  onOpenChange,
+  onTogglePinned,
+  onEdit,
+  className,
+}: CustomerSummaryPanelProps) => {
+  const isPinned = visibility === "persistent";
+
+  const titleMap: Record<RightPanelMode, string> = {
+    view: "Ficha de cliente",
+    edit: "Editar cliente",
+    create: "Nuevo cliente",
+  };
+
+  return (
+    <RightPanel
+      className={cn("bg-transparent", className)}
+      headerActions={
+        <>
+          <Button
+            aria-label={isPinned ? "Desfijar panel" : "Fijar panel"}
+            aria-pressed={isPinned}
+            onClick={onTogglePinned}
+            size="icon-sm"
+            variant="ghost"
+          >
+            {isPinned ? <PinOffIcon className="size-4" /> : <PinIcon className="size-4" />}
+          </Button>
+
+          {customer ? (
+            <Button
+              aria-label="Editar cliente"
+              onClick={() => onEdit?.(customer)}
+              size="icon-sm"
+              variant="ghost"
+            >
+              <PencilIcon className="size-4" />
+            </Button>
+          ) : null}
+        </>
+      }
+      onOpenChange={onOpenChange}
+      open={open}
+      title={titleMap[mode]}
+    >
+      {customer ? (
+        <CustomerSummaryContent
+          customer={customer}
+          onEdit={onEdit}
+          proformas={mockERPData.lastInvoices}
+          stats={mockERPData}
+        />
+      ) : (
+        <div className="flex h-full items-center justify-center p-4">
+          <p className="text-sm text-muted-foreground">Selecciona un cliente</p>
+        </div>
+      )}
+    </RightPanel>
+  );
+};
diff --git a/modules/customers/src/web/list/ui/blocks/customer-summary-panel/index.ts b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/index.ts
new file mode 100644
index 00000000..715afa4c
--- /dev/null
+++ b/modules/customers/src/web/list/ui/blocks/customer-summary-panel/index.ts
@@ -0,0 +1 @@
+export * from "./customer-summary-panel";
diff --git a/modules/customers/src/web/list/ui/blocks/customers-grid/use-customer-grid-columns.tsx b/modules/customers/src/web/list/ui/blocks/customers-grid/use-customer-grid-columns.tsx
index b03330f1..bc8a853b 100644
--- a/modules/customers/src/web/list/ui/blocks/customers-grid/use-customer-grid-columns.tsx
+++ b/modules/customers/src/web/list/ui/blocks/customers-grid/use-customer-grid-columns.tsx
@@ -132,7 +132,7 @@ export function useCustomersGridColumns(
         enableSorting: false,
         size: 140,
         minSize: 120,
-        cell: ({ row }) => <AddressCell customer={row.original} />,
+        cell: ({ row }) => <AddressCell address={row.original} />,
       },
       {
         id: "actions",
diff --git a/modules/customers/src/web/list/ui/blocks/index.ts b/modules/customers/src/web/list/ui/blocks/index.ts
index 5ed67835..e8cf1fa7 100644
--- a/modules/customers/src/web/list/ui/blocks/index.ts
+++ b/modules/customers/src/web/list/ui/blocks/index.ts
@@ -1,2 +1,2 @@
-export * from "./customer-sheet";
+export * from "./customer-summary-panel";
 export * from "./customers-grid";
diff --git a/modules/customers/src/web/list/ui/components/address-cell.tsx b/modules/customers/src/web/list/ui/components/address-cell.tsx
index 948c6e1c..330b3020 100644
--- a/modules/customers/src/web/list/ui/components/address-cell.tsx
+++ b/modules/customers/src/web/list/ui/components/address-cell.tsx
@@ -1,35 +1,44 @@
-import { MapPinIcon } from "lucide-react";
+import { ExternalLinkIcon, MapPinIcon } from "lucide-react";
 
 import { useTranslation } from "../../../i18n";
-import type { CustomerListRow } from "../../../shared";
 
-const getGoogleMapsUrl = (customer: CustomerListRow) => {
-  const fullAddress = `${customer.street}, ${customer.postalCode} ${customer.city}, ${customer.province}, ${customer.country}`;
+export interface CustomerAddress {
+  street: string;
+  street2: string;
+  postalCode: string;
+  city: string;
+  province: string;
+  country: string;
+}
+
+const getGoogleMapsUrl = (adress: CustomerAddress) => {
+  const fullAddress = `${adress.street}, ${adress.postalCode} ${adress.city}, ${adress.province}, ${adress.country}`;
   return `https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(fullAddress)}`;
 };
 
-export const AddressCell = ({ customer }: { customer: CustomerListRow }) => {
+export const AddressCell = ({ address }: { address: CustomerAddress }) => {
   const { t } = useTranslation();
-  const line1 = [customer.street, customer.street2].filter(Boolean).join(", ");
-  const line2 = [customer.postalCode, customer.city].filter(Boolean).join(" ");
-  const line3 = [customer.province, customer.country].filter(Boolean).join(", ");
+  const line1 = [address.street, address.street2].filter(Boolean).join(", ");
+  const line2 = [address.postalCode, address.city].filter(Boolean).join(" ");
+  const line3 = [address.province, address.country].filter(Boolean).join(", ");
   return (
     <address className="not-italic flex items-start gap-2 text-muted-foreground hover:text-primary transition-colors">
       <a
         aria-label={t("components.address_cell.open_in_google_maps")}
         className="group/address flex items-start gap-2 rounded-md p-1 -m-1 transition-colors hover:bg-muted"
-        href={getGoogleMapsUrl(customer)}
+        href={getGoogleMapsUrl(address)}
         rel="noopener noreferrer"
         target="_blank"
         title={t("components.address_cell.open_in_google_maps")}
       >
-        <MapPinIcon className="mt-0.5 size-3.5" />
-        <div className="text-sm">
+        <MapPinIcon className="mt-0.5 size-4 shrink-0 text-muted-foreground group-hover:text-primary" />
+        <div className="text-sm text-muted-foreground group-hover:text-foreground">
           <p>{line1}</p>
           <p>
-            {line2} · {line3}
+            {line2} - {line3}
           </p>
         </div>
+        <ExternalLinkIcon className="mt-0.5 size-3 shrink-0 text-muted-foreground opacity-0 group-hover:opacity-100" />
       </a>
     </address>
   );
diff --git a/modules/customers/src/web/list/ui/pages/list-customers-page.tsx b/modules/customers/src/web/list/ui/pages/list-customers-page.tsx
index a6efebfe..437d2608 100644
--- a/modules/customers/src/web/list/ui/pages/list-customers-page.tsx
+++ b/modules/customers/src/web/list/ui/pages/list-customers-page.tsx
@@ -7,18 +7,18 @@ import { useNavigate } from "react-router-dom";
 import { useTranslation } from "../../../i18n";
 import { ErrorAlert } from "../../../shared/ui";
 import { useListCustomersPageController } from "../../controllers";
-import { CustomerSheet, CustomersGrid, useCustomersGridColumns } from "../blocks";
+import { CustomerSummaryPanel, CustomersGrid, useCustomersGridColumns } from "../blocks";
 
 export const ListCustomersPage = () => {
   const { t } = useTranslation();
   const navigate = useNavigate();
 
-  const { listCtrl, sheetCtrl } = useListCustomersPageController();
+  const { listCtrl, panelCtrl } = useListCustomersPageController();
 
   const columns = useCustomersGridColumns({
     onEditClick: (customer) => navigate(`/customers/${customer.id}/edit`),
     onViewClick: (customer) => navigate(`/customers/${customer.id}`),
-    onSummaryClick: (customer) => sheetCtrl.openCustomerSheet(customer.id),
+    onSummaryClick: (customer) => panelCtrl.openCustomerPanel(customer.id, "view"),
     //onDeleteClick: (customer) => null, //confirmDelete(inv.id),
   });
 
@@ -51,38 +51,43 @@ export const ListCustomersPage = () => {
           title={t("pages.list.title")}
         />
       </AppHeader>
-      <AppContent>
-        <div className="flex items-center justify-between gap-16">
-          <SimpleSearchInput
-            loading={listCtrl.isFetching}
-            onSearchChange={listCtrl.setSearchValue}
-            value={listCtrl.search}
+      <AppContent className="min-h-0">
+        <div className="flex min-h-0 flex-1 overflow-hidden gap-4">
+          <div className="min-w-0 flex-1 overflow-auto">
+            <div className="flex items-center justify-between gap-16">
+              <SimpleSearchInput
+                loading={listCtrl.isFetching}
+                onSearchChange={listCtrl.setSearchValue}
+                value={listCtrl.search}
+              />
+            </div>
+
+            <CustomersGrid
+              columns={columns}
+              data={listCtrl.data}
+              fetching={listCtrl.isFetching}
+              loading={listCtrl.isLoading}
+              onPageChange={listCtrl.setPageIndex}
+              onPageSizeChange={listCtrl.setPageSize}
+              onRowClick={() => null}
+              pageIndex={listCtrl.pageIndex}
+              pageSize={listCtrl.pageSize}
+            />
+          </div>
+
+          <CustomerSummaryPanel
+            customer={panelCtrl.customer}
+            mode={panelCtrl.panelState.mode}
+            onEdit={(customer) => navigate(`/customers/${customer.id}/edit`)}
+            onOpenChange={(open) => {
+              if (open) panelCtrl.panelState.onOpenChange(true);
+              else panelCtrl.closePanel();
+            }}
+            onTogglePinned={panelCtrl.panelState.togglePinned}
+            open={panelCtrl.panelState.isOpen}
+            visibility={panelCtrl.panelState.visibility}
           />
         </div>
-
-        <CustomersGrid
-          columns={columns}
-          data={listCtrl.data}
-          fetching={listCtrl.isFetching}
-          loading={listCtrl.isLoading}
-          onPageChange={listCtrl.setPageIndex}
-          onPageSizeChange={listCtrl.setPageSize}
-          // acciones rápidas del grid → page controller
-          onRowClick={(id) => null}
-          pageIndex={listCtrl.pageIndex}
-          pageSize={listCtrl.pageSize}
-        />
-
-        {/* Customer Sheet */}
-        <CustomerSheet
-          customer={sheetCtrl.customer}
-          //mode={sheetCtrl.sheet.mode}
-          onEdit={(customer) => navigate(`/customers/${customer.id}/edit`)}
-          onOpenChange={sheetCtrl.sheetState.onOpenChange}
-          onPinnedChange={sheetCtrl.sheetState.setPinned}
-          open={sheetCtrl.sheetState.sheetIsOpen}
-          pinned={sheetCtrl.sheetState.sheetIsPinned}
-        />
       </AppContent>
     </>
   );
diff --git a/packages/rdx-ui/package.json b/packages/rdx-ui/package.json
index 47e00620..269fcc3f 100644
--- a/packages/rdx-ui/package.json
+++ b/packages/rdx-ui/package.json
@@ -10,7 +10,7 @@
     "./helpers": "./src/helpers/index.ts",
     "./globals.css": "./src/styles/globals.css",
     "./postcss.config": "./postcss.config.mjs",
-    "./components": "./src/components/index.tsx",
+    "./components": "./src/components/index.ts",
     "./components/*": "./src/components/*.tsx",
     "./locales/*": "./src/locales/*",
     "./hooks": [
diff --git a/packages/rdx-ui/src/components/buttons/index.tsx b/packages/rdx-ui/src/components/buttons/index.ts
similarity index 100%
rename from packages/rdx-ui/src/components/buttons/index.tsx
rename to packages/rdx-ui/src/components/buttons/index.ts
diff --git a/packages/rdx-ui/src/components/datatable/index.tsx b/packages/rdx-ui/src/components/datatable/index.ts
similarity index 100%
rename from packages/rdx-ui/src/components/datatable/index.tsx
rename to packages/rdx-ui/src/components/datatable/index.ts
diff --git a/packages/rdx-ui/src/components/entity-sheet/entity-sheet-shell.tsx b/packages/rdx-ui/src/components/entity-sheet/entity-sheet-shell.tsx
new file mode 100644
index 00000000..7909663d
--- /dev/null
+++ b/packages/rdx-ui/src/components/entity-sheet/entity-sheet-shell.tsx
@@ -0,0 +1,69 @@
+// entity-sheet-shell.tsx
+
+import { Button, Sheet, SheetContent, SheetTitle } from "@repo/shadcn-ui/components";
+import { cn } from "@repo/shadcn-ui/lib/utils";
+import { PinIcon, PinOffIcon, XIcon } from "lucide-react";
+import type { ReactNode } from "react";
+
+export interface EntitySheetShellProps {
+  open: boolean;
+  pinned: boolean;
+  title: string;
+  onOpenChange: (open: boolean) => void;
+  onTogglePinned: () => void;
+  headerActions?: ReactNode;
+  children: ReactNode;
+}
+
+export const EntitySheetShell = ({
+  open,
+  pinned,
+  title,
+  onOpenChange,
+  onTogglePinned,
+  headerActions,
+  children,
+}: EntitySheetShellProps) => {
+  return (
+    <Sheet modal={!pinned} onOpenChange={onOpenChange} open={open}>
+      <SheetContent
+        className={cn("flex w-full flex-col p-0 sm:max-w-md", pinned && "shadow-none")}
+        showCloseButton={false}
+        side="right"
+      >
+        <div className="flex items-center justify-between border-b px-4 py-3">
+          <SheetTitle className="sr-only">{title}</SheetTitle>
+
+          <div className="flex items-center gap-2">
+            <Button
+              aria-label={pinned ? "Desfijar panel" : "Fijar panel"}
+              aria-pressed={pinned}
+              onClick={onTogglePinned}
+              size="icon-sm"
+              title={pinned ? "Desfijar panel" : "Fijar panel"}
+              variant="ghost"
+            >
+              {pinned ? <PinOffIcon className="size-4" /> : <PinIcon className="size-4" />}
+            </Button>
+          </div>
+
+          <div className="flex items-center gap-1">
+            {headerActions}
+            {pinned ? null : (
+              <Button
+                aria-label="Cerrar panel"
+                onClick={() => onOpenChange(false)}
+                size="icon-sm"
+                variant="ghost"
+              >
+                <XIcon className="size-4" />
+              </Button>
+            )}
+          </div>
+        </div>
+
+        <div className="flex-1 overflow-y-auto">{children}</div>
+      </SheetContent>
+    </Sheet>
+  );
+};
diff --git a/packages/rdx-ui/src/components/entity-sheet/index.ts b/packages/rdx-ui/src/components/entity-sheet/index.ts
new file mode 100644
index 00000000..9c45adc4
--- /dev/null
+++ b/packages/rdx-ui/src/components/entity-sheet/index.ts
@@ -0,0 +1 @@
+export * from "./entity-sheet-shell.tsx";
diff --git a/packages/rdx-ui/src/components/form/index.tsx b/packages/rdx-ui/src/components/form/index.ts
similarity index 99%
rename from packages/rdx-ui/src/components/form/index.tsx
rename to packages/rdx-ui/src/components/form/index.ts
index 8440cea8..10483cea 100644
--- a/packages/rdx-ui/src/components/form/index.tsx
+++ b/packages/rdx-ui/src/components/form/index.ts
@@ -1,9 +1,7 @@
-export * from "./date-picker-input-field/index.ts";
 export * from "./DatePickerField.tsx";
-
+export * from "./date-picker-input-field/index.ts";
 export * from "./multi-select-field.tsx";
 export * from "./SelectField.tsx";
 export * from "./TextAreaField.tsx";
 export * from "./TextField.tsx";
 export type * from "./types.d.ts";
-
diff --git a/packages/rdx-ui/src/components/index.tsx b/packages/rdx-ui/src/components/index.ts
similarity index 55%
rename from packages/rdx-ui/src/components/index.tsx
rename to packages/rdx-ui/src/components/index.ts
index 13c81e76..241f5018 100644
--- a/packages/rdx-ui/src/components/index.tsx
+++ b/packages/rdx-ui/src/components/index.ts
@@ -1,16 +1,18 @@
-export * from "./buttons/index.tsx";
+export * from "./buttons/index.ts";
 export * from "./custom-dialog.tsx";
-export * from "./datatable/index.tsx";
+export * from "./datatable/index.ts";
 export * from "./dynamics-tabs.tsx";
+export * from "./entity-sheet/index.ts";
 export * from "./error-overlay.tsx";
-export * from "./form/index.tsx";
+export * from "./form/index.ts";
 export * from "./full-screen-modal.tsx";
 export * from "./grid/index.ts";
-export * from "./layout/index.tsx";
-export * from "./loading-overlay/index.tsx";
+export * from "./layout/index.ts";
+export * from "./loading-overlay/index.ts";
 export * from "./logo-verifactu.tsx";
-export * from "./lookup-dialog/index.tsx";
+export * from "./lookup-dialog/index.ts";
 export * from "./multi-select.tsx";
 export * from "./multiple-selector.tsx";
+export * from "./right-panel/index.ts";
 export * from "./scroll-to-top.tsx";
 export * from "./tailwind-indicator.tsx";
diff --git a/packages/rdx-ui/src/components/layout/app-breadcrumb.tsx b/packages/rdx-ui/src/components/layout/app-breadcrumb.tsx
index 01e62e7f..88d8e3bb 100644
--- a/packages/rdx-ui/src/components/layout/app-breadcrumb.tsx
+++ b/packages/rdx-ui/src/components/layout/app-breadcrumb.tsx
@@ -11,16 +11,16 @@ import {
 
 export const AppBreadcrumb = () => {
   return (
-    <header className='app-breadcrumb flex h-16 shrink-0 items-center gap-2 transition-[width,height] ease-linear group-has-[[data-collapsible=icon]]/sidebar-wrapper:h-12'>
-      <div className='flex items-center gap-2 px-6'>
-        <SidebarTrigger className='-ml-1' />
-        <Separator orientation='vertical' className='mr-2 h-4' />
+    <header className="app-breadcrumb flex h-16 shrink-0 items-center gap-2 transition-[width,height] ease-linear group-has-[[data-collapsible=icon]]/sidebar-wrapper:h-12">
+      <div className="flex items-center gap-2 px-6">
+        <SidebarTrigger className="-ml-1" />
+        <Separator className="mr-2 h-4" orientation="vertical" />
         <Breadcrumb>
           <BreadcrumbList>
-            <BreadcrumbItem className='hidden md:block'>
-              <BreadcrumbLink href='#'>Building Your Application</BreadcrumbLink>
+            <BreadcrumbItem className="hidden md:block">
+              <BreadcrumbLink href="#">Building Your Application</BreadcrumbLink>
             </BreadcrumbItem>
-            <BreadcrumbSeparator className='hidden md:block' />
+            <BreadcrumbSeparator className="hidden md:block" />
             <BreadcrumbItem>
               <BreadcrumbPage>Data Fetching</BreadcrumbPage>
             </BreadcrumbItem>
diff --git a/packages/rdx-ui/src/components/layout/index.tsx b/packages/rdx-ui/src/components/layout/index.ts
similarity index 100%
rename from packages/rdx-ui/src/components/layout/index.tsx
rename to packages/rdx-ui/src/components/layout/index.ts
diff --git a/packages/rdx-ui/src/components/loading-overlay/index.tsx b/packages/rdx-ui/src/components/loading-overlay/index.ts
similarity index 100%
rename from packages/rdx-ui/src/components/loading-overlay/index.tsx
rename to packages/rdx-ui/src/components/loading-overlay/index.ts
diff --git a/packages/rdx-ui/src/components/lookup-dialog/index.tsx b/packages/rdx-ui/src/components/lookup-dialog/index.ts
similarity index 100%
rename from packages/rdx-ui/src/components/lookup-dialog/index.tsx
rename to packages/rdx-ui/src/components/lookup-dialog/index.ts
diff --git a/packages/rdx-ui/src/components/right-panel/index.ts b/packages/rdx-ui/src/components/right-panel/index.ts
new file mode 100644
index 00000000..aeb6aa2c
--- /dev/null
+++ b/packages/rdx-ui/src/components/right-panel/index.ts
@@ -0,0 +1 @@
+export * from "./right-panel.tsx";
diff --git a/packages/rdx-ui/src/components/right-panel/right-panel-header.tsx b/packages/rdx-ui/src/components/right-panel/right-panel-header.tsx
new file mode 100644
index 00000000..e69de29b
diff --git a/packages/rdx-ui/src/components/right-panel/right-panel-types.ts b/packages/rdx-ui/src/components/right-panel/right-panel-types.ts
new file mode 100644
index 00000000..1227d928
--- /dev/null
+++ b/packages/rdx-ui/src/components/right-panel/right-panel-types.ts
@@ -0,0 +1,10 @@
+import type { ReactNode } from "react";
+
+export interface RightPanelProps {
+  open: boolean;
+  title: string;
+  className?: string;
+  headerActions?: ReactNode;
+  children: ReactNode;
+  onOpenChange?: (open: boolean) => void;
+}
diff --git a/packages/rdx-ui/src/components/right-panel/right-panel.tsx b/packages/rdx-ui/src/components/right-panel/right-panel.tsx
new file mode 100644
index 00000000..33deacd4
--- /dev/null
+++ b/packages/rdx-ui/src/components/right-panel/right-panel.tsx
@@ -0,0 +1,53 @@
+import { Button } from "@repo/shadcn-ui/components";
+import { cn } from "@repo/shadcn-ui/lib/utils";
+import { XIcon } from "lucide-react";
+
+import type { RightPanelProps } from "./right-panel-types.ts";
+
+export const RightPanel = ({
+  open,
+  title,
+  className,
+  headerActions,
+  children,
+  onOpenChange,
+}: RightPanelProps) => {
+  if (!open) return null;
+
+  return (
+    <aside
+      aria-labelledby="right-panel-title"
+      className={cn(
+        "ml-4", // separación real
+        "border bg-background",
+        "w-[420px] xl:w-[460px]",
+        className
+      )}
+    >
+      <div className="flex h-full flex-col">
+        <div className="flex items-center justify-between border-b px-4 py-3">
+          <h2 className="truncate text-sm font-semibold" id="right-panel-title">
+            {title}
+          </h2>
+
+          <div className="flex items-center gap-1">
+            {headerActions}
+
+            {onOpenChange ? (
+              <Button
+                aria-label="Cerrar panel"
+                onClick={() => onOpenChange(false)}
+                size="icon-sm"
+                variant="ghost"
+              >
+                <XIcon className="size-4" />
+              </Button>
+            ) : null}
+          </div>
+        </div>
+
+        <div className="flex-1 overflow-auto">{children}</div>
+      </div>
+    </aside>
+  );
+};
diff --git a/packages/rdx-ui/src/hooks/index.ts b/packages/rdx-ui/src/hooks/index.ts
index 6e0460dd..020db2ab 100644
--- a/packages/rdx-ui/src/hooks/index.ts
+++ b/packages/rdx-ui/src/hooks/index.ts
@@ -1,3 +1,4 @@
 export * from "./sheet/index.ts";
+export * from "./side-panel/index.ts";
 export * from "./use-device-info.ts";
 export * from "./use-row-selection.ts";
diff --git a/packages/rdx-ui/src/hooks/side-panel/index.ts b/packages/rdx-ui/src/hooks/side-panel/index.ts
new file mode 100644
index 00000000..d0adcfab
--- /dev/null
+++ b/packages/rdx-ui/src/hooks/side-panel/index.ts
@@ -0,0 +1 @@
+export * from "./use-side-panel-state.ts";
diff --git a/packages/rdx-ui/src/hooks/side-panel/use-side-panel-state.ts b/packages/rdx-ui/src/hooks/side-panel/use-side-panel-state.ts
new file mode 100644
index 00000000..b83e2d16
--- /dev/null
+++ b/packages/rdx-ui/src/hooks/side-panel/use-side-panel-state.ts
@@ -0,0 +1,88 @@
+import { useCallback, useState } from "react";
+
+export type RightPanelMode = "view" | "edit" | "create";
+export type RightPanelVisibility = "hidden" | "temporary" | "persistent";
+
+export interface RightPanelStateOptions {
+  defaultMode?: RightPanelMode;
+  defaultVisibility?: RightPanelVisibility;
+}
+
+export interface RightPanelState {
+  mode: RightPanelMode;
+  visibility: RightPanelVisibility;
+  isOpen: boolean;
+  isPinned: boolean;
+}
+
+export interface RightPanelStateActions {
+  onOpenChange: (next: boolean) => void;
+  openTemporary: (mode?: RightPanelMode) => void;
+  openPersistent: (mode?: RightPanelMode) => void;
+  togglePinned: () => void;
+  close: () => void;
+  reset: () => void;
+}
+
+export type RightPanelStateController = RightPanelState & RightPanelStateActions;
+
+const DEFAULT_MODE: RightPanelMode = "view";
+const DEFAULT_VISIBILITY: RightPanelVisibility = "hidden";
+
+export const useRightPanelState = (
+  options: RightPanelStateOptions = {}
+): RightPanelStateController => {
+  const { defaultMode = DEFAULT_MODE, defaultVisibility = DEFAULT_VISIBILITY } = options;
+
+  const [mode, setMode] = useState<RightPanelMode>(defaultMode);
+  const [visibility, setVisibility] = useState<RightPanelVisibility>(defaultVisibility);
+
+  const isOpen = visibility !== "hidden";
+  const isPinned = visibility === "persistent";
+
+  const close = useCallback(() => {
+    setVisibility("hidden");
+  }, []);
+
+  const onOpenChange = useCallback((next: boolean) => {
+    setVisibility((prev) => {
+      if (!next) return "hidden";
+      return prev === "persistent" ? "persistent" : "temporary";
+    });
+  }, []);
+
+  const openTemporary = useCallback((nextMode: RightPanelMode = DEFAULT_MODE) => {
+    setMode(nextMode);
+    setVisibility("temporary");
+  }, []);
+
+  const openPersistent = useCallback((nextMode: RightPanelMode = DEFAULT_MODE) => {
+    setMode(nextMode);
+    setVisibility("persistent");
+  }, []);
+
+  const togglePinned = useCallback(() => {
+    setVisibility((prev) => {
+      if (prev === "hidden") return prev;
+      return prev === "persistent" ? "temporary" : "persistent";
+    });
+  }, []);
+
+  const reset = useCallback(() => {
+    setMode(defaultMode);
+    setVisibility(defaultVisibility);
+  }, [defaultMode, defaultVisibility]);
+
+  return {
+    mode,
+    visibility,
+    isOpen,
+    isPinned,
+    onOpenChange,
+    openTemporary,
+    openPersistent,
+    togglePinned,
+    close,
+    reset,
+  };
+};
diff --git a/packages/rdx-ui/src/index.ts b/packages/rdx-ui/src/index.ts
index 3bdf4f2b..56dbe579 100644
--- a/packages/rdx-ui/src/index.ts
+++ b/packages/rdx-ui/src/index.ts
@@ -1,5 +1,5 @@
 export const PACKAGE_NAME = "rdx-ui";
 
-export * from "./components/index.tsx";
+export * from "./components/index.ts";
 export * from "./helpers/index.ts";
 export * from "./hooks/index.ts";
diff --git a/packages/shadcn-ui/src/components/separator.tsx b/packages/shadcn-ui/src/components/separator.tsx
index aea5b66d..c9737d58 100644
--- a/packages/shadcn-ui/src/components/separator.tsx
+++ b/packages/shadcn-ui/src/components/separator.tsx
@@ -1,7 +1,6 @@
-import * as React from "react"
-import { Separator as SeparatorPrimitive } from "radix-ui"
-
-import { cn } from "@repo/shadcn-ui/lib/utils"
+import { cn } from "@repo/shadcn-ui/lib/utils";
+import { Separator as SeparatorPrimitive } from "radix-ui";
+import type * as React from "react";
 
 function Separator({
   className,
@@ -11,16 +10,16 @@ function Separator({
 }: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
   return (
     <SeparatorPrimitive.Root
+      className={cn(
+        "shrink-0 bg-border data-horizontal:h-px data-horizontal:w-full data-vertical:w-px data-vertical:self-stretch h-[1px]",
+        className
+      )}
       data-slot="separator"
       decorative={decorative}
       orientation={orientation}
-      className={cn(
-        "shrink-0 bg-border data-horizontal:h-px data-horizontal:w-full data-vertical:w-px data-vertical:self-stretch",
-        className
-      )}
       {...props}
     />
-  )
+  );
 }
 
-export { Separator }
+export { Separator };