feat: 관리자 페이지 모바일 반응형 사이드바 토글 추가

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/admin/components/AdminShell.tsx

@@ -0,0 +1,49 @@
+'use client';
+
+import { useState } from 'react';
+import AdminSidebar from './AdminSidebar';
+
+export default function AdminShell({ children }: { children: React.ReactNode }) {
+  const [sidebarOpen, setSidebarOpen] = useState(false);
+
+  return (
+    <div className="flex h-screen bg-slate-950 overflow-hidden">
+      {/* 모바일 오버레이 */}
+      {sidebarOpen && (
+        <div
+          className="fixed inset-0 z-20 bg-black/60 lg:hidden"
+          onClick={() => setSidebarOpen(false)}
+        />
+      )}
+
+      <AdminSidebar isOpen={sidebarOpen} onClose={() => setSidebarOpen(false)} />
+
+      <div className="flex-1 flex flex-col overflow-hidden min-w-0">
+        {/* 모바일 상단 헤더 */}
+        <header className="lg:hidden flex items-center justify-between px-4 py-3 bg-slate-900 border-b border-slate-700/60 flex-shrink-0">
+          <button
+            onClick={() => setSidebarOpen(true)}
+            className="p-2 rounded-lg text-slate-400 hover:text-white hover:bg-slate-800 transition"
+            aria-label="메뉴 열기"
+          >
+            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 6h16M4 12h16M4 18h16" />
+            </svg>
+          </button>
+          <div className="flex items-center gap-2">
+            <div className="w-8 h-8 rounded-xl bg-gradient-to-br from-red-500 to-orange-500 flex items-center justify-center text-white font-bold text-sm">
+              관
+            </div>
+            <span className="text-white font-bold text-sm">관리자 패널</span>
+          </div>
+          <div className="w-9" />
+        </header>
+
+        {/* 메인 스크롤 영역 */}
+        <main className="flex-1 overflow-y-auto">
+          {children}
+        </main>
+      </div>
+    </div>
+  );
+}

app/admin/components/AdminSidebar.tsx

@@ -68,7 +68,12 @@ const NAV_ITEMS = [
   },
 ];
 
-export default function AdminSidebar() {
+interface AdminSidebarProps {
+  isOpen?: boolean;
+  onClose?: () => void;
+}
+
+export default function AdminSidebar({ isOpen = false, onClose }: AdminSidebarProps) {
   const pathname = usePathname();
   const router = useRouter();
   const [loggingOut, setLoggingOut] = useState(false);
@@ -80,9 +85,15 @@ export default function AdminSidebar() {
   }
 
   return (
-    <aside className="w-60 flex-shrink-0 bg-slate-900 flex flex-col h-screen sticky top-0">
+    <aside className={`
+      w-60 flex-shrink-0 bg-slate-900 flex flex-col h-screen
+      fixed top-0 left-0 z-30 transition-transform duration-300
+      lg:static lg:translate-x-0
+      ${isOpen ? 'translate-x-0' : '-translate-x-full'}
+    `}>
       {/* 로고 */}
       <div className="px-5 py-5 border-b border-slate-700/60">
+        <div className="flex items-center justify-between">
           <div className="flex items-center gap-3">
             <div className="w-9 h-9 rounded-xl bg-gradient-to-br from-red-500 to-orange-500 flex items-center justify-center text-white font-bold text-sm">
               관
@@ -92,6 +103,19 @@ export default function AdminSidebar() {
               <p className="text-slate-400 text-xs">쟁승메이드</p>
             </div>
           </div>
+          {/* 모바일 닫기 버튼 */}
+          {onClose && (
+            <button
+              onClick={onClose}
+              className="lg:hidden p-1.5 rounded-lg text-slate-400 hover:text-white hover:bg-slate-800 transition"
+              aria-label="메뉴 닫기"
+            >
+              <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+              </svg>
+            </button>
+          )}
+        </div>
       </div>
 
       {/* 네비게이션 */}

app/admin/layout.tsx

@@ -1,5 +1,5 @@
 import type { Metadata } from 'next';
-import AdminSidebar from './components/AdminSidebar';
+import AdminShell from './components/AdminShell';
 
 export const metadata: Metadata = {
   title: '관리자 패널 — 쟁승메이드',
@@ -7,12 +7,5 @@ export const metadata: Metadata = {
 };
 
 export default function AdminLayout({ children }: { children: React.ReactNode }) {
-  return (
-    <div className="flex h-screen bg-slate-950 overflow-hidden">
-      <AdminSidebar />
-      <main className="flex-1 overflow-y-auto">
-        {children}
-      </main>
-    </div>
-  );
+  return <AdminShell>{children}</AdminShell>;
 }