refactor layout

src/shared/AppLayout.tsx

@@ -0,0 +1,30 @@
+import { type FC, type ReactNode } from 'react'
+import Header from './Header'
+import SideBar from './Sidebar'
+
+type AppLayoutProps = {
+  children: ReactNode
+}
+
+/**
+ * Authenticated app shell: fixed header + sidebar, one scrollable main column.
+ * Horizontal padding on the scrollport keeps content clear of the RTL scrollbar.
+ */
+const AppLayout: FC<AppLayoutProps> = ({ children }) => {
+  return (
+    <div className="box-border flex h-dvh flex-col overflow-hidden p-[var(--layout-frame)]">
+      <Header />
+      <SideBar />
+
+      <div className="flex min-h-0 flex-1 flex-col pt-[var(--layout-header-stack)] xl:ms-[var(--layout-main-offset)] xl:pt-[var(--layout-header-stack-xl)]">
+        <main className="app-main min-h-0 flex-1 overflow-y-auto overscroll-contain">
+          <div className="min-w-0 px-[var(--layout-content-pad-x)] pb-28 xl:pb-16">
+            {children}
+          </div>
+        </main>
+      </div>
+    </div>
+  )
+}
+
+export default AppLayout

src/shared/Header.tsx

@@ -28,7 +28,7 @@ const Header: FC = () => {
     }, [location.pathname]);
 
     return (
-        <div className='fixed z-10 right-4 left-4 xl:right-[285px] top-4 xl:h-16 h-12 flex items-center px-6 bg-white justify-between rounded-[32px] xl:w-[calc(100%-305px)]'>
+        <div className='fixed z-10 left-[var(--layout-frame)] right-[var(--layout-frame)] top-[var(--layout-frame)] flex h-[var(--layout-header-height)] items-center justify-between rounded-[32px] bg-white px-6 xl:left-auto xl:right-[calc(var(--layout-frame)+var(--layout-main-offset))] xl:h-[var(--layout-header-height-xl)] xl:w-[calc(100%-(var(--layout-frame)*2)-var(--layout-main-offset))]'>
 
             <div className='min-w-[270px] hidden xl:block'>
                 <Input

src/shared/Sidebar.tsx

@@ -48,17 +48,17 @@ const SideBar: FC = () => {
       )}
       <div
         className={clx(
-          'fixed xl:flex translate-x-[400px] xl:translate-x-0 transition-all ease-in-out opacity-0 invisible xl:visible xl:opacity-100  xl:right-4 right-0 xl:top-4 top-0 xl:bottom-4 bottom-0 xl:rounded-[32px] w-[240px] bg-white flex-col py-12',
-          openSidebar && 'opacity-100 visible -translate-x-[0px] block z-40'
+          'fixed right-0 top-0 bottom-0 flex w-[var(--layout-sidebar-width)] translate-x-[400px] flex-col overflow-hidden bg-white py-12 opacity-0 invisible transition-all ease-in-out xl:right-[var(--layout-frame)] xl:top-[var(--layout-frame)] xl:bottom-[var(--layout-frame)] xl:z-40 xl:translate-x-0 xl:rounded-[32px] xl:opacity-100 xl:visible',
+          openSidebar && 'visible z-40 flex translate-x-0 opacity-100'
         )}
       >
-        <div className="px-6">
+        <div className="shrink-0 px-6">
           <div className="flex border-b-2 border-[#F5F7FC] pb-10">
             <img src={LogoImage} className="w-[120px]" />
           </div>
         </div>
 
-        <div className="flex-1 h-full overflow-y-auto no-scrollbar px-6">
+        <div className="min-h-0 flex-1 overflow-y-auto no-scrollbar px-6">
           <div className="mt-10 text-description px-6 text-header text-sm font-bold">{t('sidebar.menu')}</div>
 
           <div className="mt-3">