/* 게시판 표준화: 변형문제 lite 목록 페이지 기준 디자인. lite와 어법지식 목록이 함께 쓴다. */
    :root {
      --bg:          var(--site-bg, #f8f9fa);
      --bg2:         color-mix(in srgb, var(--site-bg, #f8f9fa) 92%, #3978c5);
      --surface:     var(--site-surface, #ffffff);
      --surface2:    color-mix(in srgb, var(--site-surface, #ffffff) 94%, #3978c5);
      --border:      var(--site-border, #dee2e6);
      --text:        var(--site-text, #212529);
      --text-2:      var(--site-text-2, #495057);
      --text-3:      var(--site-muted, #6c757d);
      --accent:      var(--site-accent, #3978c5);
      --accent-d:    #2e65a5;
      --blue:        var(--site-accent, #3978c5);
      --shadow:      0 1px 3px rgba(0,0,0,.06),0 4px 16px rgba(0,0,0,.06);
      --shadow-h:    0 8px 40px rgba(0,0,0,.13);
      --r:           18px;
      --r-s:         12px;
      --hh:          64px;
    }
    .dark {
      --bg:          var(--site-bg, #0b0e12);
      --bg2:         color-mix(in srgb, var(--site-bg, #0b0e12) 88%, #8eaed0);
      --surface:     var(--site-surface, #151a21);
      --surface2:    color-mix(in srgb, var(--site-surface, #151a21) 90%, #8eaed0);
      --border:      var(--site-border, #303944);
      --text:        var(--site-text, #eef1f4);
      --text-2:      var(--site-text-2, #b7c0c9);
      --text-3:      var(--site-muted, #84909c);
      --accent:      var(--site-accent, #8eaed0);
      --accent-d:    #a8bfd9;
      --blue:        var(--site-accent, #8eaed0);
      --shadow:      0 1px 3px rgba(0,0,0,.35),0 4px 16px rgba(0,0,0,.3);
      --shadow-h:    0 8px 40px rgba(0,0,0,.55);
    }

    *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:'Noto Sans KR',sans-serif;
      background:var(--bg);
      color:var(--text);
      line-height:1.6;
      transition:background .3s,color .3s;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input{font-family:inherit}

    /* MAIN CONTAINER */
    main{
      max-width:1080px;margin:0 auto;
      padding:calc(var(--hh) + 30px) 22px 72px;
    }

    /* BREADCRUMB */
    .breadcrumb{
      display:flex;align-items:center;gap:10px;
      font-family:'Noto Sans KR',sans-serif;font-size:.78rem;
      color:var(--text-3);margin-bottom:20px;
    }
    .breadcrumb a:hover{color:var(--accent)}
    .school-keyword-list{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:18px}
    .school-keyword-list>span{color:var(--text-2);font-size:.82rem;font-weight:700;margin-right:4px}
    .school-keyword-list a{display:inline-flex;align-items:center;min-height:34px;padding:5px 11px;border:1px solid var(--border);border-radius:999px;background:var(--surface2);color:var(--text-2);font-size:.8rem;font-weight:600}
    .school-keyword-list a:hover{border-color:var(--accent);color:var(--accent)}

    /* CARD SYSTEM */
    .card{
      background:var(--surface);
      border:1.5px solid var(--border);
      border-radius:var(--r);
      box-shadow:var(--shadow);
      overflow:hidden;
      margin-bottom:16px;
    }
    .ci{padding:24px 20px}

    /* HERO HEADER CARD */
    .archive-hero{
      position:relative;overflow:hidden;
    }
    .archive-hero::before{
      content:'';position:absolute;top:0;left:0;bottom:0;width:5px;
      background:linear-gradient(180deg,var(--accent) 0%,var(--blue) 100%);
    }
    .eyebrow{
      font-family:'Space Mono',monospace;font-size:.68rem;
      letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;
      margin-bottom:6px;
    }
    .hero-h1{
      font-family:'Noto Sans KR',sans-serif;
      font-size:clamp(1.55rem,4vw,2.15rem);font-weight:900;letter-spacing:-.045em;
      color:var(--text);line-height:1.3;margin-bottom:10px;
    }
    .hero-sub{font-size:.85rem;color:var(--text-2);word-break:keep-all}

    /* SEARCH FORM */
    .search-box{
      display:flex;border:1.5px solid var(--border);
      border-radius:var(--r-s);overflow:hidden;
      background:var(--surface);margin-top:18px;
      transition:border-color .2s,box-shadow .2s;
    }
    .search-box:focus-within{
      border-color:var(--accent);
      box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 13%,transparent);
    }
    .search-box input{
      flex:1;padding:12px 16px;font-size:.875rem;
      border:none;outline:none;background:transparent;color:var(--text);
    }
    .search-box input::placeholder{color:var(--text-3)}
    .search-box button{
      padding:0 20px;background:var(--accent);color:#fff;
      font-size:.875rem;font-weight:700;border:none;cursor:pointer;
      transition:background .2s;display:inline-flex;align-items:center;gap:6px;
    }
    .search-box button:hover{background:var(--accent-d)}

    /* ARCHIVE META INFO */
    .archive-meta-bar{
      display:flex;align-items:center;justify-content:space-between;
      padding:12px 16px;background:var(--surface2);
      border-bottom:1.5px solid var(--border);
      font-size:.8rem;font-weight:700;color:var(--text-2);
    }
    .tag-badge{
      display:inline-flex;align-items:center;gap:4px;
      font-family:'Space Mono',monospace;font-size:.62rem;font-weight:700;
      padding:3px 8px;border-radius:4px;
      background:color-mix(in srgb,var(--accent) 12%,var(--surface));color:var(--accent);
    }
    .dark .tag-badge{background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--accent)}

    /* BOARD LIST */
    .board-list{display:flex;flex-direction:column}
    .board-row{
      display:grid;
      grid-template-columns:minmax(0,1fr) repeat(3,72px) 100px;
      align-items:center;gap:12px;
      padding:16px 22px;
      border-bottom:1px solid var(--border);
      transition:background .15s;
    }
    .board-row:last-child{border-bottom:none}
    .board-row:hover{background:var(--surface2)}
    .board-title-group{display:flex;flex-direction:column;gap:4px}
    .board-title{
      font-size:.95rem;font-weight:700;color:var(--text);
      line-height:1.55;word-break:normal;overflow-wrap:anywhere;
      transition:color .15s;
    }
    .board-row:hover .board-title{color:var(--accent)}
    .board-date-sm{
      font-family:'Noto Sans KR',sans-serif;font-size:.75rem;color:var(--text-3);
    }
    .board-stat{
      text-align:center;font-size:.72rem;color:var(--text-3);line-height:1.3;
    }
    .board-stat .num{
      display:block;font-family:'Space Mono',monospace;
      font-size:.88rem;font-weight:700;color:var(--text-2);
    }
    .board-date-col{
      font-family:'Space Mono',monospace;font-size:.75rem;
      color:var(--text-3);text-align:right;
    }

    .empty-state{
      padding:60px 20px;text-align:center;color:var(--text-3);
      font-size:.9rem;
    }

    /* PAGINATION */
    .pagination{
      display:flex;justify-content:center;gap:6px;
      margin-top:24px;flex-wrap:wrap;
    }
    .pagination a{
      display:inline-flex;align-items:center;justify-content:center;
      min-width:38px;height:38px;padding:0 8px;
      border:1.5px solid var(--border);border-radius:var(--r-s);
      background:var(--surface);color:var(--text-2);
      font-family:'Space Mono',monospace;font-size:.8rem;font-weight:700;
      transition:all .15s;
    }
    .pagination a:hover{
      border-color:var(--accent);color:var(--accent);
      transform:translateY(-2px);
    }
    .pagination a.active{
      background:var(--accent);color:#fff;border-color:var(--accent);
    }

    @media(max-width:700px){
      .board-row{grid-template-columns:minmax(0,1fr) repeat(3,44px);gap:8px;padding:14px 16px}
      .board-date-col{display:none}
      .board-title{font-size:.88rem}
    }
      .guide-card h2{font-size:1.1rem;font-weight:800;margin:0 0 10px;letter-spacing:-.02em}
    .guide-card h3{font-size:.95rem;margin:0 0 6px}
    .guide-card p,.guide-card li{color:var(--text-2);line-height:1.8;font-size:.9rem;word-break:keep-all}
    .guide-card ol{margin:0;padding-left:22px}
    body.open-data-page .guide-card p a,body.open-data-page .guide-card li a{color:var(--accent);font-weight:600;text-decoration:underline;text-underline-offset:3px}
    .guide-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    @media(max-width:700px){.guide-cols{grid-template-columns:1fr}}

/* 게시판 표준화: 조회·좋아요 칸이 없는 글 목록 (번호 + 제목 + 요약) */
.board-row.simple{grid-template-columns:56px minmax(0,1fr)}
.board-row.simple .board-no{font-family:'Space Mono',monospace;font-size:.8rem;font-weight:700;color:var(--text-3);text-align:center}
.board-row.simple .board-excerpt{font-size:.8rem;color:var(--text-3);line-height:1.5;overflow-wrap:anywhere}
@media(max-width:700px){.board-row.simple{grid-template-columns:36px minmax(0,1fr)}}
.board-admin{display:flex;justify-content:flex-end;margin:0 0 12px}
.board-admin a{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-s);background:var(--accent);color:#fff;font-size:.82rem;font-weight:700}