.

src/components/admin/AdminCommentsPanel.tsx

@@ -0,0 +1,288 @@
+'use client';
+
+import Link from 'next/link';
+import { useState } from 'react';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import toast from 'react-hot-toast';
+import {
+  ChevronLeft,
+  ChevronRight,
+  ExternalLink,
+  Loader2,
+  MessageSquareText,
+  Trash2,
+  X,
+} from 'lucide-react';
+import { deleteAdminComment, getAdminComments } from '@/api/comments';
+import { AdminComment, AdminCommentListResponse, PageMeta } from '@/types';
+
+const PAGE_SIZE = 10;
+
+const emptyPageMeta: PageMeta = {
+  totalElements: 0,
+  totalPages: 0,
+  number: 0,
+  last: true,
+};
+
+const getErrorMessage = (error: unknown, fallback: string) => {
+  if (typeof error === 'object' && error !== null && 'response' in error) {
+    const response = (error as { response?: { data?: { message?: string } } }).response;
+    if (response?.data?.message) return `${fallback}: ${response.data.message}`;
+  }
+
+  if (error instanceof Error) return `${fallback}: ${error.message}`;
+
+  return fallback;
+};
+
+const getCommentListMeta = (data?: AdminCommentListResponse): PageMeta => {
+  if (!data) return emptyPageMeta;
+
+  return {
+    totalElements: data.page?.totalElements ?? data.totalElements ?? 0,
+    totalPages: data.page?.totalPages ?? data.totalPages ?? 0,
+    number: data.page?.number ?? data.number ?? 0,
+    last: data.page?.last ?? data.last,
+  };
+};
+
+const formatDate = (value?: string) => {
+  if (!value) return '-';
+
+  const date = new Date(value);
+  if (Number.isNaN(date.getTime())) return '-';
+
+  return new Intl.DateTimeFormat('ko-KR', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+  }).format(date);
+};
+
+const getAuthorName = (comment: AdminComment) => {
+  return comment.author || comment.memberNickname || comment.guestNickname || '익명';
+};
+
+function DeleteCommentDialog({
+  comment,
+  isDeleting,
+  onCancel,
+  onConfirm,
+}: {
+  comment: AdminComment;
+  isDeleting: boolean;
+  onCancel: () => void;
+  onConfirm: () => void;
+}) {
+  return (
+    <div className="fixed inset-0 z-50 flex items-end justify-center bg-gray-950/35 px-4 py-6 backdrop-blur-sm sm:items-center">
+      <div className="w-full max-w-md rounded-xl border border-gray-200 bg-white shadow-xl">
+        <div className="flex items-start justify-between gap-4 border-b border-gray-100 p-5">
+          <div>
+            <h3 className="text-lg font-bold text-gray-950">댓글 삭제</h3>
+            <p className="mt-1 text-sm leading-6 text-gray-500">
+              관리자 권한으로 댓글을 삭제합니다. 계속 진행할까요?
+            </p>
+          </div>
+          <button
+            type="button"
+            onClick={onCancel}
+            disabled={isDeleting}
+            className="rounded-full p-2 text-gray-400 transition hover:bg-gray-100 hover:text-gray-600 disabled:cursor-not-allowed"
+            aria-label="댓글 삭제 닫기"
+          >
+            <X size={18} />
+          </button>
+        </div>
+
+        <div className="p-5">
+          <div className="rounded-lg border border-red-100 bg-red-50 px-4 py-3">
+            <p className="line-clamp-3 text-sm font-semibold text-red-950">{comment.content}</p>
+            <p className="mt-2 text-xs text-red-700">
+              {getAuthorName(comment)} · {formatDate(comment.createdAt)}
+            </p>
+          </div>
+
+          <div className="mt-5 flex flex-col-reverse gap-2 sm:flex-row sm:justify-end">
+            <button
+              type="button"
+              onClick={onCancel}
+              disabled={isDeleting}
+              className="inline-flex items-center justify-center rounded-full border border-gray-200 px-4 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-60"
+            >
+              취소
+            </button>
+            <button
+              type="button"
+              onClick={onConfirm}
+              disabled={isDeleting}
+              className="inline-flex items-center justify-center gap-2 rounded-full bg-red-600 px-4 py-2 text-sm font-semibold text-white transition hover:bg-red-700 disabled:cursor-not-allowed disabled:bg-red-300"
+            >
+              {isDeleting ? <Loader2 className="animate-spin" size={15} /> : <Trash2 size={15} />}
+              삭제
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export default function AdminCommentsPanel() {
+  const queryClient = useQueryClient();
+  const [page, setPage] = useState(0);
+  const [deleteTarget, setDeleteTarget] = useState<AdminComment | null>(null);
+
+  const { data, isLoading, isFetching } = useQuery({
+    queryKey: ['comments', 'admin', { page }],
+    queryFn: () => getAdminComments(page, PAGE_SIZE),
+    retry: 0,
+  });
+
+  const comments = data?.content ?? [];
+  const meta = getCommentListMeta(data);
+  const displayTotalPages = Math.max(meta.totalPages, 1);
+  const isLastPage = meta.last ?? (page + 1 >= displayTotalPages);
+
+  const deleteMutation = useMutation({
+    mutationFn: deleteAdminComment,
+    onSuccess: async () => {
+      await queryClient.invalidateQueries({ queryKey: ['comments'] });
+
+      if (comments.length === 1 && page > 0) {
+        setPage((currentPage) => Math.max(0, currentPage - 1));
+      }
+
+      setDeleteTarget(null);
+      toast.success('댓글이 삭제되었습니다.');
+    },
+    onError: (error) => toast.error(getErrorMessage(error, '댓글 삭제 실패')),
+  });
+
+  const handleConfirmDelete = () => {
+    if (!deleteTarget) return;
+    deleteMutation.mutate(deleteTarget.id);
+  };
+
+  return (
+    <section className="rounded-lg border border-gray-200 bg-white p-5">
+      <div className="mb-5 flex items-start justify-between gap-4">
+        <div>
+          <h2 className="flex items-center gap-2 text-lg font-bold text-gray-950">
+            <MessageSquareText size={19} />
+            댓글 관리
+          </h2>
+          <p className="mt-1 text-sm text-gray-500">최근 댓글을 확인하고 관리자 권한으로 삭제합니다.</p>
+        </div>
+        <span className="rounded-full bg-gray-50 px-3 py-1 text-sm font-semibold text-gray-500">
+          {meta.totalElements.toLocaleString()}개
+        </span>
+      </div>
+
+      <div className="overflow-hidden rounded-lg border border-gray-200">
+        <div className="hidden grid-cols-[120px_minmax(0,1fr)_180px_96px] gap-3 border-b border-gray-100 bg-gray-50 px-4 py-3 text-xs font-bold text-gray-500 md:grid">
+          <span>작성자</span>
+          <span>내용</span>
+          <span>작성일</span>
+          <span className="text-right">작업</span>
+        </div>
+
+        {isLoading ? (
+          <div className="flex min-h-48 items-center justify-center">
+            <Loader2 className="animate-spin text-blue-500" size={28} />
+          </div>
+        ) : comments.length > 0 ? (
+          <div className={isFetching ? 'divide-y divide-gray-100 opacity-70' : 'divide-y divide-gray-100'}>
+            {comments.map((comment) => (
+              <div
+                key={comment.id}
+                className="grid gap-3 px-4 py-4 transition hover:bg-gray-50 md:grid-cols-[120px_minmax(0,1fr)_180px_96px] md:items-center"
+              >
+                <div className="min-w-0">
+                  <p className="truncate text-sm font-semibold text-gray-800">{getAuthorName(comment)}</p>
+                  <p className="mt-1 text-xs text-gray-400 md:hidden">{formatDate(comment.createdAt)}</p>
+                </div>
+
+                <div className="min-w-0">
+                  <p className="line-clamp-2 text-sm leading-6 text-gray-700">{comment.content}</p>
+                  {comment.postTitle && (
+                    <p className="mt-1 truncate text-xs text-gray-400">
+                      글: {comment.postTitle}
+                    </p>
+                  )}
+                </div>
+
+                <span className="hidden text-sm text-gray-500 md:block">{formatDate(comment.createdAt)}</span>
+
+                <div className="flex items-center justify-end gap-1">
+                  {comment.postSlug && (
+                    <Link
+                      href={`/posts/${comment.postSlug}`}
+                      className="inline-flex h-9 w-9 items-center justify-center rounded-full text-gray-400 transition hover:bg-gray-100 hover:text-gray-700"
+                      aria-label="댓글이 달린 글 보기"
+                    >
+                      <ExternalLink size={16} />
+                    </Link>
+                  )}
+                  <button
+                    type="button"
+                    onClick={() => setDeleteTarget(comment)}
+                    className="inline-flex h-9 w-9 items-center justify-center rounded-full text-gray-400 transition hover:bg-red-50 hover:text-red-600"
+                    aria-label="댓글 삭제"
+                  >
+                    <Trash2 size={16} />
+                  </button>
+                </div>
+              </div>
+            ))}
+          </div>
+        ) : (
+          <div className="px-4 py-16 text-center">
+            <MessageSquareText className="mx-auto mb-3 text-gray-300" size={42} />
+            <p className="text-sm font-semibold text-gray-700">아직 관리할 댓글이 없습니다.</p>
+            <p className="mt-2 text-sm text-gray-400">댓글이 작성되면 이곳에 표시됩니다.</p>
+          </div>
+        )}
+      </div>
+
+      <div className="mt-4 flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+        <div className="text-sm text-gray-500">
+          {isFetching && !isLoading ? '댓글을 갱신하는 중입니다.' : `페이지 ${page + 1} / ${displayTotalPages}`}
+        </div>
+
+        <div className="flex items-center justify-end gap-2">
+          <button
+            type="button"
+            onClick={() => setPage((currentPage) => Math.max(0, currentPage - 1))}
+            disabled={page === 0 || isFetching}
+            className="inline-flex items-center justify-center gap-1 rounded-full border border-gray-200 px-3 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-50"
+          >
+            <ChevronLeft size={15} />
+            이전
+          </button>
+          <button
+            type="button"
+            onClick={() => setPage((currentPage) => currentPage + 1)}
+            disabled={isLastPage || isFetching}
+            className="inline-flex items-center justify-center gap-1 rounded-full border border-gray-200 px-3 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-50"
+          >
+            다음
+            <ChevronRight size={15} />
+          </button>
+        </div>
+      </div>
+
+      {deleteTarget && (
+        <DeleteCommentDialog
+          comment={deleteTarget}
+          isDeleting={deleteMutation.isPending}
+          onCancel={() => setDeleteTarget(null)}
+          onConfirm={handleConfirmDelete}
+        />
+      )}
+    </section>
+  );
+}

src/components/admin/AdminPostEditor.tsx

@@ -0,0 +1,624 @@
+'use client';
+
+import axios from 'axios';
+import dynamic from 'next/dynamic';
+import { usePathname, useRouter } from 'next/navigation';
+import { useEffect, useState } from 'react';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import toast from 'react-hot-toast';
+import {
+  ArrowLeft,
+  Clock,
+  FileText,
+  Folder,
+  Image as ImageIcon,
+  Loader2,
+  Save,
+  Trash2,
+  UploadCloud,
+  X,
+} from 'lucide-react';
+import { getCategories } from '@/api/category';
+import { uploadImage } from '@/api/image';
+import { createPost, getPost, updatePost } from '@/api/posts';
+import { useAuthStore } from '@/store/authStore';
+import { ApiResponse, AuthResponse, Category, Post, PostSaveRequest } from '@/types';
+
+const MDEditor = dynamic(
+  () => import('@uiw/react-md-editor').then((mod) => mod.default),
+  { ssr: false },
+);
+
+interface DraftPost {
+  id: number;
+  title: string;
+  content: string;
+  savedAt: string;
+}
+
+interface AdminPostEditorProps {
+  editSlug?: string;
+}
+
+const getErrorMessage = (error: unknown, fallback: string) => {
+  if (typeof error === 'object' && error !== null && 'response' in error) {
+    const response = (error as { response?: { data?: { message?: string } } }).response;
+    if (response?.data?.message) return `${fallback}: ${response.data.message}`;
+  }
+
+  if (error instanceof Error) return `${fallback}: ${error.message}`;
+
+  return fallback;
+};
+
+const findCategoryByName = (categories: Category[], name: string): Category | null => {
+  for (const category of categories) {
+    if (category.name === name) return category;
+
+    const found = findCategoryByName(category.children || [], name);
+    if (found) return found;
+  }
+
+  return null;
+};
+
+const isTokenExpired = (token: string) => {
+  try {
+    const base64Url = token.split('.')[1];
+    const base64 = base64Url.replace(/-/g, '+').replace(/_/g, '/');
+    const jsonPayload = decodeURIComponent(
+      atob(base64)
+        .split('')
+        .map((character) => `%${(`00${character.charCodeAt(0).toString(16)}`).slice(-2)}`)
+        .join(''),
+    );
+    const { exp } = JSON.parse(jsonPayload) as { exp?: number };
+
+    return !exp || Date.now() / 1000 >= exp - 30;
+  } catch {
+    return true;
+  }
+};
+
+function CategoryOptions({
+  categories,
+  selectedId,
+  onSelect,
+  depth = 0,
+}: {
+  categories: Category[];
+  selectedId: number | '';
+  onSelect: (id: number) => void;
+  depth?: number;
+}) {
+  return (
+    <>
+      {categories.map((category) => (
+        <div key={category.id}>
+          <label className="flex cursor-pointer items-center gap-2 rounded p-2 transition-colors hover:bg-gray-50">
+            <input
+              type="radio"
+              name="category"
+              value={category.id}
+              checked={selectedId === category.id}
+              onChange={(event) => onSelect(Number(event.target.value))}
+              className="text-blue-600 focus:ring-blue-500"
+            />
+            <span
+              style={{ marginLeft: `${depth * 10}px` }}
+              className={depth === 0 ? 'font-medium' : 'text-gray-600'}
+            >
+              {depth > 0 && '- '}
+              {category.name}
+            </span>
+          </label>
+          {category.children?.length > 0 && (
+            <CategoryOptions
+              categories={category.children}
+              selectedId={selectedId}
+              onSelect={onSelect}
+              depth={depth + 1}
+            />
+          )}
+        </div>
+      ))}
+    </>
+  );
+}
+
+function DraftLoadDialog({
+  draft,
+  onCancel,
+  onConfirm,
+}: {
+  draft: DraftPost;
+  onCancel: () => void;
+  onConfirm: () => void;
+}) {
+  return (
+    <div className="fixed inset-0 z-50 flex items-end justify-center bg-gray-950/35 px-4 py-6 backdrop-blur-sm sm:items-center">
+      <div className="w-full max-w-md rounded-xl border border-gray-200 bg-white shadow-xl">
+        <div className="border-b border-gray-100 p-5">
+          <h3 className="text-lg font-bold text-gray-950">임시저장 불러오기</h3>
+          <p className="mt-1 text-sm leading-6 text-gray-500">
+            현재 작성 중인 내용이 선택한 임시저장 글로 바뀝니다.
+          </p>
+        </div>
+
+        <div className="p-5">
+          <div className="rounded-lg border border-gray-200 bg-gray-50 px-4 py-3">
+            <p className="line-clamp-2 text-sm font-semibold text-gray-950">{draft.title}</p>
+            <p className="mt-1 text-xs text-gray-500">{draft.savedAt}</p>
+          </div>
+
+          <div className="mt-5 flex flex-col-reverse gap-2 sm:flex-row sm:justify-end">
+            <button
+              type="button"
+              onClick={onCancel}
+              className="inline-flex items-center justify-center rounded-full border border-gray-200 px-4 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50"
+            >
+              취소
+            </button>
+            <button
+              type="button"
+              onClick={onConfirm}
+              className="inline-flex items-center justify-center rounded-full bg-blue-600 px-4 py-2 text-sm font-semibold text-white transition hover:bg-blue-700"
+            >
+              불러오기
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export default function AdminPostEditor({ editSlug }: AdminPostEditorProps) {
+  const router = useRouter();
+  const pathname = usePathname();
+  const queryClient = useQueryClient();
+  const { isLoggedIn, role, _hasHydrated, accessToken, refreshToken, login } = useAuthStore();
+  const isAdmin = _hasHydrated && role?.includes('ADMIN');
+  const isEditMode = Boolean(editSlug);
+
+  const [title, setTitle] = useState('');
+  const [content, setContent] = useState('**Hello world!**');
+  const [categoryId, setCategoryId] = useState<number | ''>('');
+  const [tags, setTags] = useState('');
+  const [isUploading, setIsUploading] = useState(false);
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const [drafts, setDrafts] = useState<DraftPost[]>([]);
+  const [showDraftList, setShowDraftList] = useState(false);
+  const [draftToLoad, setDraftToLoad] = useState<DraftPost | null>(null);
+
+  useEffect(() => {
+    if (!_hasHydrated) return;
+
+    if (!isLoggedIn) {
+      toast.error('로그인이 필요합니다.');
+      const currentPath = typeof window === 'undefined' ? pathname : `${window.location.pathname}${window.location.search}`;
+      router.replace(`/login?redirect=${encodeURIComponent(currentPath || '/admin/posts/new')}`);
+      return;
+    }
+
+    if (!isAdmin) {
+      toast.error('관리자 권한이 필요합니다.');
+      router.replace('/');
+    }
+  }, [_hasHydrated, isAdmin, isLoggedIn, pathname, router]);
+
+  useEffect(() => {
+    const savedDrafts = localStorage.getItem('temp_drafts');
+    if (!savedDrafts) return;
+
+    try {
+      setDrafts(JSON.parse(savedDrafts) as DraftPost[]);
+    } catch {
+      localStorage.removeItem('temp_drafts');
+    }
+  }, []);
+
+  const { data: categories = [] } = useQuery({
+    queryKey: ['categories'],
+    queryFn: getCategories,
+    enabled: isAdmin,
+  });
+
+  const { data: existingPost, isLoading: isLoadingPost } = useQuery({
+    queryKey: ['post', editSlug],
+    queryFn: () => getPost(editSlug!),
+    enabled: isAdmin && isEditMode,
+    staleTime: 0,
+    gcTime: 0,
+    refetchOnMount: 'always',
+  });
+
+  useEffect(() => {
+    if (!existingPost) return;
+
+    setTitle(existingPost.title || '');
+    setContent(existingPost.content || '');
+    setTags(existingPost.tags ? existingPost.tags.join(', ') : '');
+
+    if (categories.length > 0 && existingPost.categoryName) {
+      const found = findCategoryByName(categories, existingPost.categoryName);
+      if (found) setCategoryId(found.id);
+    }
+  }, [existingPost, categories]);
+
+  const saveDrafts = (nextDrafts: DraftPost[]) => {
+    setDrafts(nextDrafts);
+    localStorage.setItem('temp_drafts', JSON.stringify(nextDrafts));
+  };
+
+  const handleTempSave = () => {
+    if (!title.trim() && !content.trim()) {
+      toast.error('제목이나 내용을 입력해주세요.');
+      return;
+    }
+
+    if (drafts.length >= 10) {
+      toast.error('임시저장은 최대 10개까지만 가능합니다.\n기존 저장분을 삭제해주세요.');
+      setShowDraftList(true);
+      return;
+    }
+
+    saveDrafts([
+      {
+        id: Date.now(),
+        title: title || '(제목 없음)',
+        content,
+        savedAt: new Date().toLocaleString(),
+      },
+      ...drafts,
+    ]);
+    toast.success('임시저장 되었습니다.');
+  };
+
+  const handleLoadDraft = (draft: DraftPost) => {
+    setDraftToLoad(draft);
+  };
+
+  const confirmLoadDraft = () => {
+    if (!draftToLoad) return;
+
+    setTitle(draftToLoad.title === '(제목 없음)' ? '' : draftToLoad.title);
+    setContent(draftToLoad.content);
+    setShowDraftList(false);
+    setDraftToLoad(null);
+    toast.success('불러오기 완료');
+  };
+
+  const handleDeleteDraft = (id: number) => {
+    saveDrafts(drafts.filter((draft) => draft.id !== id));
+    toast.success('삭제되었습니다.');
+  };
+
+  const mutation = useMutation({
+    mutationFn: (data: PostSaveRequest) => {
+      if (isEditMode) {
+        return updatePost(existingPost!.id, data);
+      }
+
+      return createPost(data);
+    },
+    onSuccess: async (response: ApiResponse<Post>) => {
+      const savedPost = response.data;
+      const newSlug = savedPost?.slug || editSlug;
+
+      await queryClient.resetQueries({ queryKey: ['posts'] });
+      await queryClient.invalidateQueries({ queryKey: ['categories'] });
+
+      if (editSlug) {
+        queryClient.removeQueries({ queryKey: ['post', editSlug] });
+      }
+      if (newSlug && newSlug !== editSlug) {
+        queryClient.removeQueries({ queryKey: ['post', newSlug] });
+      }
+
+      toast.success(isEditMode ? '게시글이 수정되었습니다.' : '게시글이 발행되었습니다.');
+      router.push(newSlug ? `/posts/${newSlug}` : '/admin');
+    },
+    onError: (error) => {
+      toast.error(getErrorMessage(error, '저장 실패'));
+    },
+    onSettled: () => {
+      setIsSubmitting(false);
+    },
+  });
+
+  const ensureAuthToken = async (): Promise<boolean> => {
+    if (!accessToken || !refreshToken) {
+      toast.error('로그인이 필요합니다.');
+      return false;
+    }
+
+    if (!isTokenExpired(accessToken)) return true;
+
+    try {
+      const baseUrl = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8080';
+      const { data } = await axios.post<ApiResponse<AuthResponse>>(
+        `${baseUrl}/api/auth/reissue`,
+        { accessToken, refreshToken },
+        { headers: { 'Content-Type': 'application/json' }, withCredentials: true },
+      );
+
+      if (data.code === 'SUCCESS' && data.data) {
+        login(data.data.accessToken, data.data.refreshToken);
+        return true;
+      }
+
+      return false;
+    } catch {
+      toast.error('세션이 만료되었습니다.\n작성 중인 글을 복사해두고 다시 로그인해주세요.', { duration: 5000 });
+      return false;
+    }
+  };
+
+  const appendImageMarkdown = (imageUrl: string) => {
+    setContent((previous) => `${previous}\n![image](${imageUrl})`);
+  };
+
+  const uploadEditorImage = async (file: File, successMessage: string, toastId: string) => {
+    const isTokenValid = await ensureAuthToken();
+    if (!isTokenValid) return;
+
+    const response = await uploadImage(file);
+    if (response.code === 'SUCCESS' && response.data) {
+      appendImageMarkdown(response.data);
+      toast.success(successMessage, { id: toastId });
+    } else {
+      toast.error(response.message || '이미지 업로드 실패', { id: toastId });
+    }
+  };
+
+  const handleSubmit = async () => {
+    if (!title.trim() || !content.trim()) {
+      toast.error('제목과 내용을 입력해주세요.');
+      return;
+    }
+    if (categoryId === '') {
+      toast.error('카테고리를 선택해주세요.');
+      return;
+    }
+
+    setIsSubmitting(true);
+
+    const isTokenValid = await ensureAuthToken();
+    if (!isTokenValid) {
+      setIsSubmitting(false);
+      return;
+    }
+
+    mutation.mutate({
+      title,
+      content,
+      categoryId: Number(categoryId),
+      tags: tags.split(',').map((tag) => tag.trim()).filter(Boolean),
+    });
+  };
+
+  const handleFileChange = async (event: React.ChangeEvent<HTMLInputElement>) => {
+    const file = event.target.files?.[0];
+    if (!file) return;
+
+    setIsUploading(true);
+    const uploadToast = toast.loading('이미지 업로드 중...');
+
+    try {
+      await uploadEditorImage(file, '이미지가 업로드되었습니다.', uploadToast);
+    } catch (error) {
+      toast.error(getErrorMessage(error, '이미지 업로드 실패'), { id: uploadToast });
+    } finally {
+      setIsUploading(false);
+      event.target.value = '';
+    }
+  };
+
+  const handlePaste = async (event: React.ClipboardEvent<HTMLDivElement>) => {
+    const items = event.clipboardData?.items;
+    if (!items) return;
+
+    for (const item of Array.from(items)) {
+      if (!item.type.startsWith('image')) continue;
+
+      event.preventDefault();
+      const file = item.getAsFile();
+      if (!file) return;
+
+      setIsUploading(true);
+      const uploadToast = toast.loading('이미지 업로드 중...');
+
+      try {
+        await uploadEditorImage(file, '이미지 붙여넣기 완료.', uploadToast);
+      } catch (error) {
+        toast.error(getErrorMessage(error, '이미지 업로드 실패'), { id: uploadToast });
+      } finally {
+        setIsUploading(false);
+      }
+    }
+  };
+
+  if (!_hasHydrated || !isAdmin || (isEditMode && isLoadingPost)) {
+    return (
+      <div className="flex min-h-[60vh] items-center justify-center">
+        <Loader2 className="animate-spin text-blue-500" size={40} />
+      </div>
+    );
+  }
+
+  return (
+    <div className="mx-auto max-w-5xl px-4 py-8" onPaste={handlePaste}>
+      <div className="mb-6 flex flex-col justify-between gap-4 sm:flex-row sm:items-center">
+        <div className="flex items-center gap-3">
+          <button
+            type="button"
+            onClick={() => router.push('/admin/posts')}
+            className="rounded-full p-2 text-gray-500 transition-colors hover:bg-gray-100"
+            aria-label="게시글 관리로 돌아가기"
+          >
+            <ArrowLeft size={20} />
+          </button>
+          <h1 className="text-2xl font-bold text-gray-800">{isEditMode ? '게시글 수정' : '새 글 작성'}</h1>
+        </div>
+
+        <div className="flex flex-wrap items-center gap-3">
+          <div className="relative">
+            <div className="flex items-center rounded-lg border border-gray-300 bg-white shadow-sm">
+              <button
+                type="button"
+                onClick={handleTempSave}
+                className="flex items-center gap-2 rounded-l-lg border-r border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-50"
+                title="현재 내용 임시저장"
+              >
+                <FileText size={16} className="text-gray-500" />
+                <span className="hidden sm:inline">임시저장</span>
+              </button>
+              <button
+                type="button"
+                onClick={() => setShowDraftList(!showDraftList)}
+                className="flex items-center gap-1 rounded-r-lg px-3 py-2 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-50"
+                title="임시저장 목록 보기"
+              >
+                <span className="rounded bg-gray-100 px-1.5 py-0.5 text-xs font-bold text-gray-600">
+                  {drafts.length}
+                </span>
+              </button>
+            </div>
+
+            {showDraftList && (
+              <>
+                <div className="fixed inset-0 z-10" onClick={() => setShowDraftList(false)} />
+                <div className="absolute right-0 top-full z-20 mt-2 w-80 overflow-hidden rounded-xl border border-gray-200 bg-white shadow-xl">
+                  <div className="flex items-center justify-between border-b border-gray-100 bg-gray-50 px-4 py-3">
+                    <h3 className="text-sm font-bold text-gray-700">임시저장 목록 ({drafts.length}/10)</h3>
+                    <button type="button" onClick={() => setShowDraftList(false)} aria-label="임시저장 목록 닫기">
+                      <X size={16} className="text-gray-400 hover:text-gray-600" />
+                    </button>
+                  </div>
+
+                  <div className="max-h-80 overflow-y-auto">
+                    {drafts.length === 0 ? (
+                      <div className="p-8 text-center text-sm text-gray-400">저장된 글이 없습니다.</div>
+                    ) : (
+                      <ul className="divide-y divide-gray-100">
+                        {drafts.map((draft) => (
+                          <li key={draft.id} className="group p-3 transition-colors hover:bg-blue-50">
+                            <div className="flex items-start justify-between gap-2">
+                              <button type="button" onClick={() => handleLoadDraft(draft)} className="flex-1 text-left">
+                                <p className="mb-1 line-clamp-1 text-sm font-medium text-gray-800 group-hover:text-blue-600">
+                                  {draft.title}
+                                </p>
+                                <div className="flex items-center gap-1 text-xs text-gray-400">
+                                  <Clock size={12} />
+                                  {draft.savedAt}
+                                </div>
+                              </button>
+                              <button
+                                type="button"
+                                onClick={() => handleDeleteDraft(draft.id)}
+                                className="rounded p-1.5 text-gray-300 transition-colors hover:bg-red-50 hover:text-red-500"
+                                title="삭제"
+                              >
+                                <Trash2 size={14} />
+                              </button>
+                            </div>
+                          </li>
+                        ))}
+                      </ul>
+                    )}
+                  </div>
+                </div>
+              </>
+            )}
+          </div>
+
+          <button
+            type="button"
+            onClick={handleSubmit}
+            disabled={isSubmitting || isUploading}
+            className="flex items-center gap-2 rounded-lg bg-blue-600 px-5 py-2.5 font-bold text-white shadow-md transition-colors duration-200 hover:bg-blue-700 disabled:bg-gray-400"
+          >
+            {isSubmitting ? <Loader2 className="animate-spin" size={18} /> : <Save size={18} />}
+            {isEditMode ? '수정하기' : '작성하기'}
+          </button>
+        </div>
+      </div>
+
+      <div className="grid grid-cols-1 gap-6 lg:grid-cols-4">
+        <div className="space-y-4 lg:col-span-3">
+          <input
+            type="text"
+            value={title}
+            onChange={(event) => setTitle(event.target.value)}
+            placeholder="제목을 입력하세요"
+            className="w-full border-none bg-transparent py-2 text-3xl font-bold outline-none placeholder:text-gray-300"
+          />
+          <div data-color-mode="light">
+            <MDEditor
+              value={content}
+              onChange={(value) => setContent(value || '')}
+              height={600}
+              preview="edit"
+              className="rounded-lg border border-gray-200 shadow-sm !font-sans"
+            />
+          </div>
+        </div>
+
+        <div className="space-y-6">
+          <div className="sticky top-6 rounded-xl border border-gray-100 bg-white p-5 shadow-sm">
+            <h3 className="mb-3 flex items-center gap-2 font-bold text-gray-700">
+              <Folder size={18} />
+              카테고리
+            </h3>
+            <div className="max-h-60 space-y-1 overflow-y-auto border-t border-gray-100 pt-2 text-sm">
+              {categories.length > 0 ? (
+                <CategoryOptions categories={categories} selectedId={categoryId} onSelect={setCategoryId} />
+              ) : (
+                <p className="text-sm text-gray-400">로딩 중...</p>
+              )}
+            </div>
+          </div>
+
+          <div className="sticky top-[280px] rounded-xl border border-gray-100 bg-white p-5 shadow-sm">
+            <h3 className="mb-3 flex items-center gap-2 font-bold text-gray-700">
+              <ImageIcon size={18} />
+              이미지 업로드
+            </h3>
+            <p className="mb-3 text-xs leading-relaxed text-gray-500">
+              에디터에 이미지를 <br />
+              <strong>복사 & 붙여넣기(Ctrl+V)</strong> 하거나
+              <br /> 아래 버튼을 사용하세요.
+            </p>
+
+            <label
+              className={`flex h-24 w-full cursor-pointer flex-col items-center justify-center rounded-lg border-2 border-dashed border-gray-300 transition-all duration-200 hover:border-blue-400 hover:bg-gray-50 ${isUploading ? 'cursor-wait opacity-50' : ''}`}
+            >
+              <div className="flex flex-col items-center justify-center pb-6 pt-5">
+                <UploadCloud className="mb-2 h-8 w-8 text-gray-400" />
+                <p className="text-xs font-medium text-gray-500">
+                  {isUploading ? '업로드 중...' : '클릭하여 이미지 선택'}
+                </p>
+              </div>
+              <input
+                type="file"
+                className="hidden"
+                accept="image/*"
+                onChange={handleFileChange}
+                disabled={isUploading}
+              />
+            </label>
+          </div>
+        </div>
+      </div>
+
+      {draftToLoad && (
+        <DraftLoadDialog
+          draft={draftToLoad}
+          onCancel={() => setDraftToLoad(null)}
+          onConfirm={confirmLoadDraft}
+        />
+      )}
+    </div>
+  );
+}

src/components/admin/AdminPostsPanel.tsx

@@ -0,0 +1,670 @@
+'use client';
+
+import Link from 'next/link';
+import { useMemo, useState } from 'react';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import toast from 'react-hot-toast';
+import { clsx } from 'clsx';
+import {
+  ChevronLeft,
+  ChevronRight,
+  Edit2,
+  Eye,
+  FileText,
+  Loader2,
+  Search,
+  Trash2,
+  X,
+} from 'lucide-react';
+import { getCategories } from '@/api/category';
+import { deletePost, getPosts } from '@/api/posts';
+import { Category, PageMeta, Post, PostListResponse } from '@/types';
+
+const PAGE_SIZE = 10;
+
+const sortOptions = [
+  { value: 'createdAt,desc', label: '최신순' },
+  { value: 'createdAt,asc', label: '오래된순' },
+  { value: 'viewCount,desc', label: '조회수순' },
+];
+
+const emptyPageMeta: PageMeta = {
+  totalPages: 0,
+  totalElements: 0,
+  number: 0,
+  last: true,
+};
+
+const formatDate = (value?: string) => {
+  if (!value) return '-';
+
+  const date = new Date(value);
+  if (Number.isNaN(date.getTime())) return '-';
+
+  return new Intl.DateTimeFormat('ko-KR', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+  }).format(date);
+};
+
+type CategoryOption = {
+  id: number;
+  name: string;
+  label: string;
+};
+
+const flattenCategoryOptions = (categories: Category[] = [], depth = 0): CategoryOption[] => {
+  return categories.flatMap((category) => [
+    {
+      id: category.id,
+      name: category.name,
+      label: `${'  '.repeat(depth)}${depth > 0 ? '- ' : ''}${category.name}`,
+    },
+    ...flattenCategoryOptions(category.children || [], depth + 1),
+  ]);
+};
+
+const getPostListMeta = (data?: PostListResponse): PageMeta => {
+  if (!data) return emptyPageMeta;
+
+  return {
+    totalPages: data.page?.totalPages ?? data.totalPages ?? 0,
+    totalElements: data.page?.totalElements ?? data.totalElements ?? 0,
+    number: data.page?.number ?? data.number ?? 0,
+    last: data.page?.last ?? data.last,
+  };
+};
+
+const getErrorMessage = (error: unknown, fallback: string) => {
+  if (typeof error === 'object' && error !== null && 'response' in error) {
+    const response = (error as { response?: { data?: { message?: string } } }).response;
+    if (response?.data?.message) return `${fallback}: ${response.data.message}`;
+  }
+
+  if (error instanceof Error) return `${fallback}: ${error.message}`;
+
+  return fallback;
+};
+
+function DeletePostDialog({
+  post,
+  isDeleting,
+  onCancel,
+  onConfirm,
+}: {
+  post: Post;
+  isDeleting: boolean;
+  onCancel: () => void;
+  onConfirm: () => void;
+}) {
+  return (
+    <div className="fixed inset-0 z-50 flex items-end justify-center bg-gray-950/35 px-4 py-6 backdrop-blur-sm sm:items-center">
+      <div className="w-full max-w-md rounded-xl border border-gray-200 bg-white shadow-xl">
+        <div className="flex items-start justify-between gap-4 border-b border-gray-100 p-5">
+          <div>
+            <h3 className="text-lg font-bold text-gray-950">게시글 삭제</h3>
+            <p className="mt-1 text-sm leading-6 text-gray-500">
+              삭제한 글은 복구할 수 없습니다. 계속 진행할까요?
+            </p>
+          </div>
+          <button
+            type="button"
+            onClick={onCancel}
+            disabled={isDeleting}
+            className="rounded-full p-2 text-gray-400 transition hover:bg-gray-100 hover:text-gray-600 disabled:cursor-not-allowed"
+            aria-label="삭제 확인 닫기"
+          >
+            <X size={18} />
+          </button>
+        </div>
+
+        <div className="p-5">
+          <div className="rounded-lg border border-red-100 bg-red-50 px-4 py-3">
+            <p className="line-clamp-2 text-sm font-semibold text-red-950">{post.title}</p>
+            <p className="mt-1 text-xs text-red-700">
+              {post.categoryName || '미분류'} · {formatDate(post.createdAt)}
+            </p>
+          </div>
+
+          <div className="mt-5 flex flex-col-reverse gap-2 sm:flex-row sm:justify-end">
+            <button
+              type="button"
+              onClick={onCancel}
+              disabled={isDeleting}
+              className="inline-flex items-center justify-center rounded-full border border-gray-200 px-4 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-60"
+            >
+              취소
+            </button>
+            <button
+              type="button"
+              onClick={onConfirm}
+              disabled={isDeleting}
+              className="inline-flex items-center justify-center gap-2 rounded-full bg-red-600 px-4 py-2 text-sm font-semibold text-white transition hover:bg-red-700 disabled:cursor-not-allowed disabled:bg-red-300"
+            >
+              {isDeleting ? <Loader2 className="animate-spin" size={15} /> : <Trash2 size={15} />}
+              삭제
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function BulkDeletePostsDialog({
+  posts,
+  isDeleting,
+  onCancel,
+  onConfirm,
+}: {
+  posts: Post[];
+  isDeleting: boolean;
+  onCancel: () => void;
+  onConfirm: () => void;
+}) {
+  return (
+    <div className="fixed inset-0 z-50 flex items-end justify-center bg-gray-950/35 px-4 py-6 backdrop-blur-sm sm:items-center">
+      <div className="w-full max-w-lg rounded-xl border border-gray-200 bg-white shadow-xl">
+        <div className="flex items-start justify-between gap-4 border-b border-gray-100 p-5">
+          <div>
+            <h3 className="text-lg font-bold text-gray-950">게시글 대량 삭제</h3>
+            <p className="mt-1 text-sm leading-6 text-gray-500">
+              선택한 게시글 {posts.length.toLocaleString()}개를 삭제합니다. 삭제한 글은 복구할 수 없습니다.
+            </p>
+          </div>
+          <button
+            type="button"
+            onClick={onCancel}
+            disabled={isDeleting}
+            className="rounded-full p-2 text-gray-400 transition hover:bg-gray-100 hover:text-gray-600 disabled:cursor-not-allowed"
+            aria-label="대량 삭제 확인 닫기"
+          >
+            <X size={18} />
+          </button>
+        </div>
+
+        <div className="p-5">
+          <div className="max-h-52 overflow-y-auto rounded-lg border border-red-100 bg-red-50">
+            {posts.map((post) => (
+              <div key={post.id} className="border-b border-red-100 px-4 py-3 last:border-b-0">
+                <p className="line-clamp-1 text-sm font-semibold text-red-950">{post.title}</p>
+                <p className="mt-1 text-xs text-red-700">
+                  {post.categoryName || '미분류'} · {formatDate(post.createdAt)}
+                </p>
+              </div>
+            ))}
+          </div>
+
+          <div className="mt-5 flex flex-col-reverse gap-2 sm:flex-row sm:justify-end">
+            <button
+              type="button"
+              onClick={onCancel}
+              disabled={isDeleting}
+              className="inline-flex items-center justify-center rounded-full border border-gray-200 px-4 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-60"
+            >
+              취소
+            </button>
+            <button
+              type="button"
+              onClick={onConfirm}
+              disabled={isDeleting}
+              className="inline-flex items-center justify-center gap-2 rounded-full bg-red-600 px-4 py-2 text-sm font-semibold text-white transition hover:bg-red-700 disabled:cursor-not-allowed disabled:bg-red-300"
+            >
+              {isDeleting ? <Loader2 className="animate-spin" size={15} /> : <Trash2 size={15} />}
+              선택 삭제
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export default function AdminPostsPanel() {
+  const queryClient = useQueryClient();
+  const [page, setPage] = useState(0);
+  const [pageInput, setPageInput] = useState('1');
+  const [keywordInput, setKeywordInput] = useState('');
+  const [keyword, setKeyword] = useState('');
+  const [sort, setSort] = useState(sortOptions[0].value);
+  const [categoryName, setCategoryName] = useState('');
+  const [selectedPostIds, setSelectedPostIds] = useState<Set<number>>(() => new Set());
+  const [deleteTarget, setDeleteTarget] = useState<Post | null>(null);
+  const [isBulkDeleteOpen, setIsBulkDeleteOpen] = useState(false);
+
+  const { data, isLoading, isFetching } = useQuery({
+    queryKey: ['posts', 'admin', 'management', { page, keyword, sort, categoryName }],
+    queryFn: () => getPosts({
+      page,
+      size: PAGE_SIZE,
+      keyword: keyword || undefined,
+      category: categoryName || undefined,
+      sort,
+    }),
+    retry: 0,
+  });
+
+  const { data: categories = [] } = useQuery({
+    queryKey: ['categories'],
+    queryFn: getCategories,
+    retry: 0,
+  });
+
+  const posts = useMemo(() => data?.content ?? [], [data?.content]);
+  const meta = getPostListMeta(data);
+  const displayTotalPages = Math.max(meta.totalPages, 1);
+  const isLastPage = meta.last ?? (page + 1 >= displayTotalPages);
+  const categoryOptions = useMemo(() => flattenCategoryOptions(categories), [categories]);
+  const selectedPosts = useMemo(
+    () => posts.filter((post) => selectedPostIds.has(post.id)),
+    [posts, selectedPostIds],
+  );
+  const allPageSelected = posts.length > 0 && posts.every((post) => selectedPostIds.has(post.id));
+
+  const resetSelection = () => {
+    setSelectedPostIds(new Set());
+  };
+
+  const goToPage = (nextPage: number) => {
+    const boundedPage = Math.min(Math.max(nextPage, 0), displayTotalPages - 1);
+    setPage(boundedPage);
+    setPageInput(String(boundedPage + 1));
+    resetSelection();
+  };
+
+  const deleteMutation = useMutation({
+    mutationFn: deletePost,
+    onSuccess: async () => {
+      const deletedPost = deleteTarget;
+
+      await queryClient.invalidateQueries({ queryKey: ['posts'] });
+      if (deletedPost?.slug) {
+        queryClient.removeQueries({ queryKey: ['post', deletedPost.slug] });
+      }
+
+      if (posts.length === 1 && page > 0) {
+        goToPage(page - 1);
+      }
+
+      resetSelection();
+      setDeleteTarget(null);
+      toast.success('게시글이 삭제되었습니다.');
+    },
+    onError: (error) => toast.error(getErrorMessage(error, '게시글 삭제 실패')),
+  });
+
+  const bulkDeleteMutation = useMutation({
+    mutationFn: async (targets: Post[]) => {
+      await Promise.all(targets.map((post) => deletePost(post.id)));
+      return targets;
+    },
+    onSuccess: async (deletedPosts) => {
+      await queryClient.invalidateQueries({ queryKey: ['posts'] });
+      deletedPosts.forEach((post) => {
+        if (post.slug) queryClient.removeQueries({ queryKey: ['post', post.slug] });
+      });
+
+      if (deletedPosts.length >= posts.length && page > 0) {
+        goToPage(page - 1);
+      } else {
+        resetSelection();
+      }
+
+      setIsBulkDeleteOpen(false);
+      toast.success(`게시글 ${deletedPosts.length.toLocaleString()}개가 삭제되었습니다.`);
+    },
+    onError: (error) => toast.error(getErrorMessage(error, '게시글 대량 삭제 실패')),
+  });
+
+  const handleSearch = (event: React.FormEvent) => {
+    event.preventDefault();
+    setPage(0);
+    setPageInput('1');
+    resetSelection();
+    setKeyword(keywordInput.trim());
+  };
+
+  const handleClearSearch = () => {
+    setKeywordInput('');
+    setKeyword('');
+    setPage(0);
+    setPageInput('1');
+    resetSelection();
+  };
+
+  const handleSortChange = (event: React.ChangeEvent<HTMLSelectElement>) => {
+    setSort(event.target.value);
+    setPage(0);
+    setPageInput('1');
+    resetSelection();
+  };
+
+  const handleCategoryChange = (event: React.ChangeEvent<HTMLSelectElement>) => {
+    setCategoryName(event.target.value);
+    setPage(0);
+    setPageInput('1');
+    resetSelection();
+  };
+
+  const handlePageJump = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    const parsedPage = Number(pageInput);
+    if (!Number.isFinite(parsedPage) || parsedPage < 1) {
+      toast.error('이동할 페이지 번호를 입력해주세요.');
+      setPageInput(String(page + 1));
+      return;
+    }
+
+    goToPage(parsedPage - 1);
+  };
+
+  const handleConfirmDelete = () => {
+    if (!deleteTarget) return;
+    deleteMutation.mutate(deleteTarget.id);
+  };
+
+  const handleConfirmBulkDelete = () => {
+    if (selectedPosts.length === 0) return;
+    bulkDeleteMutation.mutate(selectedPosts);
+  };
+
+  const togglePostSelection = (id: number) => {
+    setSelectedPostIds((currentIds) => {
+      const nextIds = new Set(currentIds);
+
+      if (nextIds.has(id)) {
+        nextIds.delete(id);
+      } else {
+        nextIds.add(id);
+      }
+
+      return nextIds;
+    });
+  };
+
+  const togglePageSelection = () => {
+    setSelectedPostIds((currentIds) => {
+      const nextIds = new Set(currentIds);
+
+      if (allPageSelected) {
+        posts.forEach((post) => nextIds.delete(post.id));
+      } else {
+        posts.forEach((post) => nextIds.add(post.id));
+      }
+
+      return nextIds;
+    });
+  };
+
+  return (
+    <section className="rounded-lg border border-gray-200 bg-white p-5">
+      <div className="mb-5 flex flex-col justify-between gap-4 md:flex-row md:items-end">
+        <div>
+          <h2 className="flex items-center gap-2 text-lg font-bold text-gray-950">
+            <FileText size={19} />
+            게시글 관리
+          </h2>
+          <p className="mt-1 text-sm text-gray-500">검색, 수정, 삭제를 한 화면에서 처리합니다.</p>
+        </div>
+
+        <Link
+          href="/admin/posts/new"
+          className="inline-flex items-center justify-center gap-2 rounded-full bg-gray-950 px-4 py-2 text-sm font-semibold text-white transition hover:bg-gray-800"
+        >
+          <Edit2 size={15} />
+          새 글 작성
+        </Link>
+      </div>
+
+      <div className="mb-4 flex flex-col gap-3 lg:flex-row lg:items-center lg:justify-between">
+        <form onSubmit={handleSearch} className="flex min-w-0 flex-1 items-center gap-2">
+          <label className="relative block min-w-0 flex-1">
+            <span className="sr-only">게시글 검색</span>
+            <Search className="pointer-events-none absolute left-3 top-1/2 -translate-y-1/2 text-gray-400" size={16} />
+            <input
+              value={keywordInput}
+              onChange={(event) => setKeywordInput(event.target.value)}
+              placeholder="제목 또는 본문 검색"
+              className="w-full rounded-full border border-gray-200 bg-gray-50 py-2 pl-9 pr-3 text-sm outline-none transition focus:border-blue-500 focus:bg-white focus:ring-2 focus:ring-blue-100"
+            />
+          </label>
+
+          <button
+            type="submit"
+            className="inline-flex shrink-0 items-center justify-center rounded-full bg-blue-600 px-4 py-2 text-sm font-semibold text-white transition hover:bg-blue-700"
+          >
+            검색
+          </button>
+
+          {keyword && (
+            <button
+              type="button"
+              onClick={handleClearSearch}
+              className="inline-flex shrink-0 items-center justify-center rounded-full px-3 py-2 text-sm font-semibold text-gray-500 transition hover:bg-gray-100 hover:text-gray-700"
+            >
+              초기화
+            </button>
+          )}
+        </form>
+
+        <div className="flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between lg:justify-end">
+          <div className="text-sm text-gray-500">
+            {keyword ? (
+              <>
+                <span className="font-semibold text-gray-900">{keyword}</span> 결과{' '}
+              </>
+            ) : null}
+            <span className="font-semibold text-gray-900">{meta.totalElements.toLocaleString()}</span>개
+          </div>
+
+          <div className="flex flex-wrap items-center gap-2">
+            {selectedPostIds.size > 0 && (
+              <button
+                type="button"
+                onClick={() => setIsBulkDeleteOpen(true)}
+                disabled={isFetching}
+                className="inline-flex items-center justify-center gap-2 rounded-full border border-red-100 bg-red-50 px-3 py-2 text-sm font-semibold text-red-600 transition hover:bg-red-100 disabled:cursor-not-allowed disabled:opacity-60"
+              >
+                <Trash2 size={15} />
+                선택 삭제 {selectedPostIds.size.toLocaleString()}
+              </button>
+            )}
+
+            <label className="flex items-center gap-2">
+              <span className="sr-only">카테고리 필터</span>
+              <select
+                value={categoryName}
+                onChange={handleCategoryChange}
+                className="rounded-full border border-gray-200 bg-white px-3 py-2 text-sm font-semibold text-gray-700 outline-none transition focus:border-blue-500 focus:ring-2 focus:ring-blue-100"
+              >
+                <option value="">전체 카테고리</option>
+                {categoryOptions.map((category) => (
+                  <option key={category.id} value={category.name}>
+                    {category.label}
+                  </option>
+                ))}
+              </select>
+            </label>
+
+            <label className="flex items-center gap-2">
+              <span className="sr-only">게시글 정렬</span>
+              <select
+                value={sort}
+                onChange={handleSortChange}
+                className="rounded-full border border-gray-200 bg-white px-3 py-2 text-sm font-semibold text-gray-700 outline-none transition focus:border-blue-500 focus:ring-2 focus:ring-blue-100"
+              >
+                {sortOptions.map((option) => (
+                  <option key={option.value} value={option.value}>
+                    {option.label}
+                  </option>
+                ))}
+              </select>
+            </label>
+          </div>
+        </div>
+      </div>
+
+      <div className="overflow-hidden rounded-lg border border-gray-200">
+        <div className="hidden grid-cols-[44px_minmax(0,1fr)_130px_110px_84px_132px] gap-3 border-b border-gray-100 bg-gray-50 px-4 py-3 text-xs font-bold text-gray-500 md:grid">
+          <span className="flex items-center justify-center">
+            <input
+              type="checkbox"
+              checked={allPageSelected}
+              onChange={togglePageSelection}
+              disabled={posts.length === 0 || isFetching}
+              className="h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500 disabled:cursor-not-allowed disabled:opacity-40"
+              aria-label="현재 페이지 게시글 전체 선택"
+            />
+          </span>
+          <span>제목</span>
+          <span>카테고리</span>
+          <span>작성일</span>
+          <span className="text-right">조회수</span>
+          <span className="text-right">작업</span>
+        </div>
+
+        {isLoading ? (
+          <div className="flex min-h-64 items-center justify-center">
+            <Loader2 className="animate-spin text-blue-500" size={28} />
+          </div>
+        ) : posts.length > 0 ? (
+          <div className={clsx('divide-y divide-gray-100', isFetching && 'opacity-70')}>
+            {posts.map((post) => (
+              <div
+                key={post.id}
+                className="grid gap-3 px-4 py-4 transition hover:bg-gray-50 md:grid-cols-[44px_minmax(0,1fr)_130px_110px_84px_132px] md:items-center"
+              >
+                <label className="flex items-start md:items-center md:justify-center">
+                  <span className="sr-only">{post.title} 선택</span>
+                  <input
+                    type="checkbox"
+                    checked={selectedPostIds.has(post.id)}
+                    onChange={() => togglePostSelection(post.id)}
+                    className="mt-1 h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-500 md:mt-0"
+                  />
+                </label>
+
+                <div className="min-w-0">
+                  <Link
+                    href={`/posts/${post.slug}`}
+                    className="line-clamp-2 text-sm font-semibold text-gray-950 transition hover:text-blue-600"
+                  >
+                    {post.title}
+                  </Link>
+                  <p className="mt-1 text-xs text-gray-400 md:hidden">
+                    {post.categoryName || '미분류'} · {formatDate(post.createdAt)} · 조회 {post.viewCount.toLocaleString()}
+                  </p>
+                </div>
+
+                <span className="hidden truncate text-sm text-gray-500 md:block">{post.categoryName || '미분류'}</span>
+                <span className="hidden text-sm text-gray-500 md:block">{formatDate(post.createdAt)}</span>
+                <span className="hidden text-right text-sm tabular-nums text-gray-500 md:block">
+                  {post.viewCount.toLocaleString()}
+                </span>
+
+                <div className="flex items-center justify-end gap-1">
+                  <Link
+                    href={`/posts/${post.slug}`}
+                    className="inline-flex h-9 w-9 items-center justify-center rounded-full text-gray-400 transition hover:bg-gray-100 hover:text-gray-700"
+                    aria-label={`${post.title} 보기`}
+                  >
+                    <Eye size={16} />
+                  </Link>
+                  <Link
+                    href={`/admin/posts/${post.slug}/edit`}
+                    className="inline-flex h-9 w-9 items-center justify-center rounded-full text-gray-400 transition hover:bg-blue-50 hover:text-blue-600"
+                    aria-label={`${post.title} 수정`}
+                  >
+                    <Edit2 size={16} />
+                  </Link>
+                  <button
+                    type="button"
+                    onClick={() => setDeleteTarget(post)}
+                    className="inline-flex h-9 w-9 items-center justify-center rounded-full text-gray-400 transition hover:bg-red-50 hover:text-red-600"
+                    aria-label={`${post.title} 삭제`}
+                  >
+                    <Trash2 size={16} />
+                  </button>
+                </div>
+              </div>
+            ))}
+          </div>
+        ) : (
+          <div className="px-4 py-16 text-center">
+            <FileText className="mx-auto mb-3 text-gray-300" size={42} />
+            <p className="text-sm font-semibold text-gray-700">
+              {keyword ? '검색 조건에 맞는 게시글이 없습니다.' : '아직 작성된 글이 없습니다.'}
+            </p>
+            <p className="mt-2 text-sm text-gray-400">새 글을 작성하면 이곳에서 바로 관리할 수 있습니다.</p>
+          </div>
+        )}
+      </div>
+
+      <div className="mt-4 flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+        <div className="text-sm text-gray-500">
+          {isFetching && !isLoading ? '목록을 갱신하는 중입니다.' : `페이지 ${page + 1} / ${displayTotalPages}`}
+        </div>
+
+        <div className="flex items-center justify-end gap-2">
+          <button
+            type="button"
+            onClick={() => goToPage(page - 1)}
+            disabled={page === 0 || isFetching}
+            className="inline-flex items-center justify-center gap-1 rounded-full border border-gray-200 px-3 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-50"
+          >
+            <ChevronLeft size={15} />
+            이전
+          </button>
+          <form onSubmit={handlePageJump} className="flex items-center gap-2">
+            <input
+              type="number"
+              min={1}
+              max={displayTotalPages}
+              value={pageInput}
+              onChange={(event) => setPageInput(event.target.value)}
+              disabled={isFetching}
+              className="h-9 w-20 rounded-full border border-gray-200 px-3 text-center text-sm font-semibold text-gray-700 outline-none transition focus:border-blue-500 focus:ring-2 focus:ring-blue-100 disabled:cursor-not-allowed disabled:bg-gray-50"
+              aria-label="이동할 페이지 번호"
+            />
+            <button
+              type="submit"
+              disabled={isFetching}
+              className="inline-flex h-9 items-center justify-center rounded-full border border-gray-200 px-3 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-50"
+            >
+              이동
+            </button>
+          </form>
+          <button
+            type="button"
+            onClick={() => goToPage(page + 1)}
+            disabled={isLastPage || isFetching}
+            className="inline-flex items-center justify-center gap-1 rounded-full border border-gray-200 px-3 py-2 text-sm font-semibold text-gray-700 transition hover:bg-gray-50 disabled:cursor-not-allowed disabled:opacity-50"
+          >
+            다음
+            <ChevronRight size={15} />
+          </button>
+        </div>
+      </div>
+
+      {deleteTarget && (
+        <DeletePostDialog
+          post={deleteTarget}
+          isDeleting={deleteMutation.isPending}
+          onCancel={() => setDeleteTarget(null)}
+          onConfirm={handleConfirmDelete}
+        />
+      )}
+
+      {isBulkDeleteOpen && selectedPosts.length > 0 && (
+        <BulkDeletePostsDialog
+          posts={selectedPosts}
+          isDeleting={bulkDeleteMutation.isPending}
+          onCancel={() => setIsBulkDeleteOpen(false)}
+          onConfirm={handleConfirmBulkDelete}
+        />
+      )}
+    </section>
+  );
+}

src/components/admin/AdminRouteShell.tsx

@@ -0,0 +1,86 @@
+'use client';
+
+import Link from 'next/link';
+import { usePathname, useRouter } from 'next/navigation';
+import { useEffect } from 'react';
+import toast from 'react-hot-toast';
+import { BarChart3, FileText, FolderTree, Loader2, MessageSquareText, UserRound } from 'lucide-react';
+import { clsx } from 'clsx';
+import { useAuthStore } from '@/store/authStore';
+
+const navItems = [
+  { href: '/admin', label: '대시보드', icon: BarChart3, exact: true },
+  { href: '/admin/posts', label: '게시글', icon: FileText },
+  { href: '/admin/comments', label: '댓글', icon: MessageSquareText },
+  { href: '/admin/categories', label: '카테고리', icon: FolderTree },
+  { href: '/admin/profile', label: '프로필', icon: UserRound },
+];
+
+const getCurrentPath = (pathname: string) => {
+  if (typeof window === 'undefined') return pathname || '/admin';
+
+  return `${window.location.pathname}${window.location.search}`;
+};
+
+const getLoginRedirectPath = (pathname: string) => {
+  const currentPath = getCurrentPath(pathname);
+  return `/login?redirect=${encodeURIComponent(currentPath || '/admin')}`;
+};
+
+export default function AdminRouteShell({ children }: { children: React.ReactNode }) {
+  const router = useRouter();
+  const pathname = usePathname();
+  const { isLoggedIn, role, _hasHydrated } = useAuthStore();
+  const isAdmin = _hasHydrated && role?.includes('ADMIN');
+
+  useEffect(() => {
+    if (!_hasHydrated) return;
+
+    if (!isLoggedIn) {
+      router.replace(getLoginRedirectPath(pathname));
+      return;
+    }
+
+    if (!isAdmin) {
+      toast.error('관리자 권한이 필요합니다.');
+      router.replace('/');
+    }
+  }, [_hasHydrated, isAdmin, isLoggedIn, pathname, router]);
+
+  if (!_hasHydrated || !isAdmin) {
+    return (
+      <div className="flex min-h-[60vh] items-center justify-center">
+        <Loader2 className="animate-spin text-blue-500" size={36} />
+      </div>
+    );
+  }
+
+  return (
+    <div className="mx-auto max-w-6xl space-y-6 px-1 py-4 md:px-4">
+      <nav className="flex gap-2 overflow-x-auto border-b border-gray-200 pb-3" aria-label="관리자 메뉴">
+        {navItems.map((item) => {
+          const Icon = item.icon;
+          const isActive = item.exact ? pathname === item.href : pathname === item.href || pathname.startsWith(`${item.href}/`);
+
+          return (
+            <Link
+              key={item.href}
+              href={item.href}
+              className={clsx(
+                'inline-flex shrink-0 items-center gap-2 rounded-full px-4 py-2 text-sm font-semibold transition',
+                isActive
+                  ? 'bg-gray-950 text-white'
+                  : 'border border-gray-200 bg-white text-gray-600 hover:border-gray-300 hover:bg-gray-50 hover:text-gray-950',
+              )}
+            >
+              <Icon size={16} />
+              {item.label}
+            </Link>
+          );
+        })}
+      </nav>
+
+      {children}
+    </div>
+  );
+}

src/components/comment/CommentItem.tsx

@@ -4,9 +4,9 @@ import { useState } from 'react';
 import { Comment } from '@/types';
 import { useAuthStore } from '@/store/authStore';
 import { useMutation, useQueryClient } from '@tanstack/react-query';
-import { deleteComment, deleteAdminComment } from '@/api/comments';
+import { deleteComment } from '@/api/comments';
 import { format } from 'date-fns';
-import { User, CheckCircle2, Trash2, MessageSquare, UserCheck, ShieldAlert, X } from 'lucide-react'; // X 아이콘 추가
+import { User, CheckCircle2, Trash2, MessageSquare, UserCheck, X } from 'lucide-react'; // X 아이콘 추가
 import CommentForm from './CommentForm';
 import { clsx } from 'clsx';
 import toast from 'react-hot-toast'; // 🎨 Toast 추가
@@ -17,8 +17,19 @@ interface CommentItemProps {
   depth?: number;
 }
 
+const getErrorMessage = (error: unknown, fallback: string) => {
+  if (typeof error === 'object' && error !== null && 'response' in error) {
+    const response = (error as { response?: { data?: { message?: string } } }).response;
+    if (response?.data?.message) return response.data.message;
+  }
+
+  if (error instanceof Error) return error.message;
+
+  return fallback;
+};
+
 export default function CommentItem({ comment, postSlug, depth = 0 }: CommentItemProps) {
-  const { isLoggedIn, role, user } = useAuthStore();
+  const { isLoggedIn, user } = useAuthStore();
   
   const queryClient = useQueryClient();
   const [isReplying, setIsReplying] = useState(false);
@@ -26,7 +37,6 @@ export default function CommentItem({ comment, postSlug, depth = 0 }: CommentIte
   const [isDeleting, setIsDeleting] = useState(false);
   const [guestPassword, setGuestPassword] = useState('');
 
-  const isAdmin = isLoggedIn && role?.includes('ADMIN');
   const isGuestComment = !comment.memberId;
   
   const isMyComment = isLoggedIn && !isGuestComment && (
@@ -34,7 +44,7 @@ export default function CommentItem({ comment, postSlug, depth = 0 }: CommentIte
     (user?.nickname === comment.author)
   );
 
-  const showDeleteButton = isAdmin || isGuestComment || isMyComment;
+  const showDeleteButton = isGuestComment || isMyComment;
 
   const deleteMutation = useMutation({
     mutationFn: ({ id, password }: { id: number; password?: string }) => deleteComment(id, password),
@@ -42,32 +52,12 @@ export default function CommentItem({ comment, postSlug, depth = 0 }: CommentIte
       queryClient.invalidateQueries({ queryKey: ['comments', postSlug] });
       toast.success('댓글이 삭제되었습니다.');
     },
-    onError: (err: any) => {
-      toast.error('삭제 실패: ' + (err.response?.data?.message || '비밀번호가 틀렸습니다.'));
-    },
-  });
-
-  const adminDeleteMutation = useMutation({
-    mutationFn: deleteAdminComment,
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['comments', postSlug] });
-      toast.success('관리자 권한으로 삭제했습니다.');
-    },
-    onError: (err: any) => {
-      toast.error('관리자 삭제 실패: ' + (err.response?.data?.message || err.message));
+    onError: (error) => {
+      toast.error(`삭제 실패: ${getErrorMessage(error, '비밀번호가 틀렸습니다.')}`);
     },
   });
 
   const handleDeleteClick = () => {
-    // A. 관리자 -> 즉시 삭제 (컨펌만)
-    if (isAdmin) {
-      if (confirm('관리자 권한으로 삭제하시겠습니까?')) {
-        adminDeleteMutation.mutate(comment.id);
-      }
-      return;
-    }
-
-    // B. 내 댓글 -> 즉시 삭제 (컨펌만)
     if (isMyComment) {
       if (confirm('이 댓글을 삭제하시겠습니까?')) {
         deleteMutation.mutate({ id: comment.id });
@@ -138,11 +128,11 @@ export default function CommentItem({ comment, postSlug, depth = 0 }: CommentIte
                 className={clsx(
                   "p-1.5 rounded transition-colors",
                   isDeleting ? "bg-red-50 text-red-600" : 
-                  isAdmin ? "text-red-400 hover:text-red-600 hover:bg-red-50" : "text-gray-400 hover:text-red-600 hover:bg-red-50"
+                  "text-gray-400 hover:text-red-600 hover:bg-red-50"
                 )}
-                title={isAdmin ? "관리자 삭제" : "삭제"}
+                title="삭제"
               >
-                {isAdmin ? <ShieldAlert size={14} /> : <Trash2 size={14} />}
+                <Trash2 size={14} />
               </button>
             )}
           </div>
@@ -204,4 +194,4 @@ export default function CommentItem({ comment, postSlug, depth = 0 }: CommentIte
       )}
     </div>
   );
-}
+}

src/components/layout/TopHeader.tsx

@@ -36,7 +36,7 @@ export default function TopHeader() {
               </Link>
 
               <Link
-                href="/write"
+                href="/admin/posts/new"
                 className="flex items-center gap-2 px-4 py-2 bg-blue-600 text-white text-sm font-bold rounded-full shadow-md hover:bg-blue-700 hover:shadow-lg transition-all transform hover:-translate-y-0.5"
               >
                 <PenLine size={16} />

src/components/post/PostDetailClient.tsx

@@ -1,14 +1,13 @@
 'use client';
 
-import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getPost, deletePost } from '@/api/posts';
+import { useQuery } from '@tanstack/react-query';
+import { getPost } from '@/api/posts';
 import { getProfile } from '@/api/profile';
 import MarkdownRenderer from '@/components/post/MarkdownRenderer';
 import CommentList from '@/components/comment/CommentList';
 import TOC from '@/components/post/TOC';
-import { Loader2, Calendar, Eye, Folder, User, Edit2, Trash2, ArrowLeft, AlertCircle, ChevronLeft, ChevronRight } from 'lucide-react';
+import { Loader2, Calendar, Eye, Folder, User, ArrowLeft, AlertCircle, ChevronLeft, ChevronRight } from 'lucide-react';
 import { useRouter } from 'next/navigation';
-import { useAuthStore } from '@/store/authStore';
 import Link from 'next/link';
 import { Post } from '@/types'; // 타입 임포트
 
@@ -17,11 +16,24 @@ interface PostDetailClientProps {
   initialPost: Post; // 🌟 서버에서 넘겨받는 초기 데이터 (필수)
 }
 
+const getPostErrorInfo = (error: unknown) => {
+  if (typeof error === 'object' && error !== null && 'response' in error) {
+    const response = (error as { response?: { status?: number; data?: { message?: string } } }).response;
+
+    return {
+      status: response?.status,
+      message: response?.data?.message,
+    };
+  }
+
+  return {
+    status: undefined,
+    message: error instanceof Error ? error.message : undefined,
+  };
+};
+
 export default function PostDetailClient({ slug, initialPost }: PostDetailClientProps) {
   const router = useRouter();
-  const queryClient = useQueryClient();
-  const { role, _hasHydrated } = useAuthStore();
-  const isAdmin = _hasHydrated && role?.includes('ADMIN');
 
   // 1. 게시글 상세 조회
   const { data: post, isLoading: isPostLoading, error } = useQuery({
@@ -37,18 +49,6 @@ export default function PostDetailClient({ slug, initialPost }: PostDetailClient
     queryFn: getProfile,
   });
 
-  const deleteMutation = useMutation({
-    mutationFn: deletePost,
-    onSuccess: () => {
-      alert('게시글이 삭제되었습니다.');
-      queryClient.invalidateQueries({ queryKey: ['posts'] });
-      router.push('/');
-    },
-    onError: (err: any) => {
-      alert('삭제 실패: ' + (err.response?.data?.message || err.message));
-    },
-  });
-
   // 🌟 Loading 상태 처리를 제거하거나 조건을 완화합니다.
   // initialData가 있으면 isLoading은 false가 되므로 바로 아래 컨텐츠가 렌더링됩니다.
   if (isPostLoading) {
@@ -61,8 +61,8 @@ export default function PostDetailClient({ slug, initialPost }: PostDetailClient
 
   // 에러 처리
   if (error || !post) {
-    const errorStatus = (error as any)?.response?.status;
-    const errorMessage = (error as any)?.response?.data?.message || error?.message || '게시글을 찾을 수 없습니다.';
+    const { status: errorStatus, message } = getPostErrorInfo(error);
+    const errorMessage = message || '게시글을 찾을 수 없습니다.';
     const isAuthError = errorStatus === 401 || errorStatus === 403;
 
     return (
@@ -87,16 +87,6 @@ export default function PostDetailClient({ slug, initialPost }: PostDetailClient
   const prevPost = post.prevPost;
   const nextPost = post.nextPost;
 
-  const handleDelete = () => {
-    if (confirm('정말로 이 게시글을 삭제하시겠습니까? 복구할 수 없습니다.')) {
-      deleteMutation.mutate(post.id);
-    }
-  };
-
-  const handleEdit = () => {
-    router.push(`/write?slug=${post.slug}`);
-  };
-
   return (
     <div className="max-w-screen-2xl mx-auto px-4 md:px-8 py-12">
       <Link href="/" className="inline-flex items-center gap-1 text-gray-500 hover:text-blue-600 mb-8 transition-colors">
@@ -114,12 +104,6 @@ export default function PostDetailClient({ slug, initialPost }: PostDetailClient
                   <Folder size={14} />
                   <span>{post.categoryName || 'Uncategorized'}</span>
                 </div>
-                {isAdmin && (
-                  <div className="flex gap-2">
-                    <button onClick={handleEdit} className="p-2 text-gray-400 hover:text-blue-600 hover:bg-blue-50 rounded-full transition-colors"><Edit2 size={18} /></button>
-                    <button onClick={handleDelete} className="p-2 text-gray-400 hover:text-red-600 hover:bg-red-50 rounded-full transition-colors"><Trash2 size={18} /></button>
-                  </div>
-                )}
               </div>
               <h1 className="text-4xl md:text-5xl font-bold text-gray-900 mb-6 leading-tight break-keep">{post.title}</h1>
               <div className="flex flex-wrap items-center gap-6 text-sm text-gray-500">
@@ -165,4 +149,4 @@ export default function PostDetailClient({ slug, initialPost }: PostDetailClient
       </div>
     </div>
   );
-}
+}