diff --git a/modules/customer-invoices/src/web/proformas/detail/ui/blocks/proforma-detail-preview-card.tsx b/modules/customer-invoices/src/web/proformas/detail/ui/blocks/proforma-detail-preview-card.tsx
index 68f90d98..2f2bcfe1 100644
--- a/modules/customer-invoices/src/web/proformas/detail/ui/blocks/proforma-detail-preview-card.tsx
+++ b/modules/customer-invoices/src/web/proformas/detail/ui/blocks/proforma-detail-preview-card.tsx
@@ -1,5 +1,4 @@
 import { PDFViewer } from "@repo/rdx-ui/components";
-import { Card, CardContent } from "@repo/shadcn-ui/components";
 
 type ProformaDetailPreviewCardProps = {
   src: string | null;
@@ -19,21 +18,15 @@ export const ProformaDetailPreviewCard = ({
   onPrint,
 }: ProformaDetailPreviewCardProps) => {
   return (
-    <Card className="overflow-hidden border-border/80 shadow-sm">
-      <CardContent className="p-0">
-        <PDFViewer
-          className="h-[calc(100vh-11.5rem)] min-h-[720px]"
-          defaultZoom="fit"
-          description="Vista previa del PDF real generado para esta proforma."
-          error={error}
-          loading={isLoading}
-          onDownload={onDownload}
-          onOpen={onOpen}
-          onPrint={onPrint}
-          src={src}
-          title="Vista previa"
-        />
-      </CardContent>
-    </Card>
+    <PDFViewer
+      className="h-[calc(100vh-11.5rem)] min-h-[720px]"
+      defaultZoom="fit"
+      error={error}
+      loading={isLoading}
+      onDownload={onDownload}
+      onOpen={onOpen}
+      onPrint={onPrint}
+      src={src}
+    />
   );
 };
diff --git a/packages/rdx-ui/src/components/form/form-section-card.tsx b/packages/rdx-ui/src/components/form/form-section-card.tsx
index 2e38acac..8c5c2cf4 100644
--- a/packages/rdx-ui/src/components/form/form-section-card.tsx
+++ b/packages/rdx-ui/src/components/form/form-section-card.tsx
@@ -13,6 +13,7 @@ interface FormSectionCardProps {
   description?: string;
   icon?: ReactNode;
   disabled?: boolean;
+  actions?: ReactNode;
   children: ReactNode;
   className?: string;
   headerClassName?: string;
@@ -24,10 +25,12 @@ export const FormSectionCard = ({
   description,
   icon,
   disabled = false,
-  children,
   className,
   headerClassName,
   contentClassName,
+  actions,
+
+  children,
 }: FormSectionCardProps) => {
   const hasHeader = Boolean(title || description || icon);
 
@@ -35,25 +38,28 @@ export const FormSectionCard = ({
     <Card className={className}>
       {hasHeader && (
         <CardHeader className={headerClassName}>
-          <div className="flex items-start gap-2">
-            {icon ? (
-              <div
-                className={cn(
-                  "flex size-6 shrink-0 items-center justify-center",
-                  disabled ? "text-muted-foreground" : "text-primary"
-                )}
-              >
-                {" "}
-                {icon}{" "}
-              </div>
-            ) : null}
-
-            <div className="space-y-1">
-              {title ? <CardTitle className="font-semibold">{title}</CardTitle> : null}
-              {description ? (
-                <CardDescription className="font-medium">{description}</CardDescription>
+          <div className="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+            <div className="flex items-start gap-2">
+              {icon ? (
+                <div
+                  className={cn(
+                    "flex size-6 shrink-0 items-center justify-center",
+                    disabled ? "text-muted-foreground" : "text-primary"
+                  )}
+                >
+                  {" "}
+                  {icon}{" "}
+                </div>
               ) : null}
+
+              <div className="space-y-1">
+                {title ? <CardTitle className="font-semibold">{title}</CardTitle> : null}
+                {description ? (
+                  <CardDescription className="font-medium">{description}</CardDescription>
+                ) : null}
+              </div>
             </div>
+            {actions ? <>{actions}</> : null}
           </div>
         </CardHeader>
       )}
diff --git a/packages/rdx-ui/src/components/pdf-viewer.tsx b/packages/rdx-ui/src/components/pdf-viewer.tsx
index 2dbeddb6..24692555 100644
--- a/packages/rdx-ui/src/components/pdf-viewer.tsx
+++ b/packages/rdx-ui/src/components/pdf-viewer.tsx
@@ -1,3 +1,4 @@
+import { FormSectionCard, FormSectionGrid } from "@repo/rdx-ui/components";
 import {
   Button,
   Select,
@@ -7,8 +8,14 @@ import {
   SelectValue,
   Spinner,
 } from "@repo/shadcn-ui/components";
-import { cn } from "@repo/shadcn-ui/lib/utils";
-import { DownloadIcon, ExternalLinkIcon, PrinterIcon, ZoomInIcon, ZoomOutIcon } from "lucide-react";
+import {
+  DownloadIcon,
+  ExternalLinkIcon,
+  EyeIcon,
+  PrinterIcon,
+  ZoomInIcon,
+  ZoomOutIcon,
+} from "lucide-react";
 import { useEffect, useMemo, useRef, useState } from "react";
 
 const DEFAULT_ZOOM_OPTIONS = [50, 75, 100, 125, 150];
@@ -77,8 +84,10 @@ export function PDFViewer({
 
     const updateFitZoom = () => {
       const styles = window.getComputedStyle(element);
-      const paddingX = Number.parseFloat(styles.paddingLeft) + Number.parseFloat(styles.paddingRight);
-      const paddingY = Number.parseFloat(styles.paddingTop) + Number.parseFloat(styles.paddingBottom);
+      const paddingX =
+        Number.parseFloat(styles.paddingLeft) + Number.parseFloat(styles.paddingRight);
+      const paddingY =
+        Number.parseFloat(styles.paddingTop) + Number.parseFloat(styles.paddingBottom);
       const availableWidth = Math.max(element.clientWidth - paddingX, 320);
       const availableHeight = Math.max(element.clientHeight - paddingY, 320);
       const widthScale = availableWidth / PDF_PAGE_WIDTH;
@@ -143,13 +152,8 @@ export function PDFViewer({
   };
 
   return (
-    <div className={cn("flex h-full flex-col", className)}>
-      <div className="flex flex-col gap-3 border-b px-5 py-4 sm:flex-row sm:items-center sm:justify-between">
-        <div>
-          <h2 className="text-lg font-semibold tracking-tight">{title}</h2>
-          <p className="text-sm text-muted-foreground">{description}</p>
-        </div>
-
+    <FormSectionCard
+      actions={
         <div className="flex flex-wrap items-center gap-2">
           <Button
             disabled={loading || !src || (zoom !== FIT_ZOOM_VALUE && Number(zoom) <= minZoom)}
@@ -226,58 +230,65 @@ export function PDFViewer({
             <PrinterIcon className="size-4" />
           </Button>
         </div>
-      </div>
-
-      <div className="flex-1 overflow-auto bg-muted/30 p-4 md:p-5" ref={viewportRef}>
-        {loading ? (
-          <div className="flex h-full min-h-[480px] items-center justify-center rounded-xl border border-dashed bg-background/80">
-            <div className="flex items-center gap-3 text-sm text-muted-foreground">
-              <Spinner className="size-4" />
-              Cargando vista previa del PDF...
+      }
+      className="shadow-sm"
+      contentClassName="space-y-5"
+      description={description}
+      icon={<EyeIcon className="size-5" />}
+      title={title}
+    >
+      <FormSectionGrid className="gap-y-6 md:grid-cols-1">
+        <div className="flex-1 overflow-auto bg-muted p-4 md:p-5" ref={viewportRef}>
+          {loading ? (
+            <div className="flex h-full min-h-[480px] items-center justify-center rounded-xl border border-dashed bg-background/80">
+              <div className="flex items-center gap-3 text-sm text-muted-foreground">
+                <Spinner className="size-4" />
+                Cargando vista previa del PDF...
+              </div>
             </div>
-          </div>
-        ) : null}
+          ) : null}
 
-        {!loading && error ? (
-          <div className="flex h-full min-h-[480px] items-center justify-center rounded-xl border border-dashed bg-background/80 px-6 text-center">
-            <div className="space-y-2">
-              <p className="font-medium text-foreground">No se pudo cargar la vista previa</p>
-              <p className="text-sm text-muted-foreground">{error}</p>
+          {!loading && error ? (
+            <div className="flex h-full min-h-[480px] items-center justify-center rounded-xl border border-dashed bg-background/80 px-6 text-center">
+              <div className="space-y-2">
+                <p className="font-medium text-foreground">No se pudo cargar la vista previa</p>
+                <p className="text-sm text-muted-foreground">{error}</p>
+              </div>
             </div>
-          </div>
-        ) : null}
+          ) : null}
 
-        {!(loading || error) && resolvedSrc ? (
-          <div className="mx-auto flex min-h-full justify-center">
-            <div
-              className="origin-top rounded-xl border bg-background shadow-sm transition-transform"
-              style={{
-                transform: `scale(${zoomScale})`,
-                transformOrigin: "top center",
-                width: `${PDF_PAGE_WIDTH}px`,
-              }}
-            >
-              <iframe
-                className="w-full rounded-xl"
-                src={resolvedSrc}
-                style={{ height: `${PDF_PAGE_HEIGHT}px` }}
-                title={title}
-              />
+          {!(loading || error) && resolvedSrc ? (
+            <div className="mx-auto flex min-h-full justify-center">
+              <div
+                className="origin-top rounded-xl border bg-red-500 shadow-sm transition-transform"
+                style={{
+                  transform: `scale(${zoomScale})`,
+                  transformOrigin: "top center",
+                  width: `${PDF_PAGE_WIDTH}px`,
+                }}
+              >
+                <iframe
+                  className="w-full rounded-xl bg-amber-500"
+                  src={resolvedSrc}
+                  style={{ height: `${PDF_PAGE_HEIGHT}px` }}
+                  title={title}
+                />
+              </div>
             </div>
-          </div>
-        ) : null}
+          ) : null}
 
-        {loading || error || resolvedSrc ? null : (
-          <div className="flex h-full min-h-[480px] items-center justify-center rounded-xl border border-dashed bg-background/80 px-6 text-center">
-            <div className="space-y-2">
-              <p className="font-medium text-foreground">Vista previa no disponible</p>
-              <p className="text-sm text-muted-foreground">
-                El PDF de la proforma todavía no está listo para mostrarse.
-              </p>
+          {loading || error || resolvedSrc ? null : (
+            <div className="flex h-full min-h-[480px] items-center justify-center rounded-xl border border-dashed bg-background/80 px-6 text-center">
+              <div className="space-y-2">
+                <p className="font-medium text-foreground">Vista previa no disponible</p>
+                <p className="text-sm text-muted-foreground">
+                  El PDF de la proforma todavía no está listo para mostrarse.
+                </p>
+              </div>
             </div>
-          </div>
-        )}
-      </div>
-    </div>
+          )}
+        </div>
+      </FormSectionGrid>
+    </FormSectionCard>
   );
 }