/* ===========================================
   nj-components.css — 나주다 디자인 시스템 공용 컴포넌트
   school + nineview 양쪽에서 사용 (foundation.css 토큰 기반)

   원칙:
   - 색상은 var(--nj-primary) 사용 — .nv-page 컨테이너 안에서는 자동으로 nineview 색상,
     그 외(스쿨)에서는 school 색상으로 cascade.
   - nineview.css 의 .nv-* 패턴을 미러 (look & feel 동일, 색만 분기).
   - 스쿨 페이지의 legacy 클래스는 이 파일 끝의 "Legacy bridges" 섹션에서 selector 매핑.
   =========================================== */

/* ============ Buttons ============ */
.nj-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--nj-btn-padding-md);
    border-radius: var(--nj-btn-radius);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    transition: all var(--nj-transition-normal);
    border: 1px solid transparent;
    background: transparent;
    color: var(--nj-text-primary);
    white-space: nowrap;
    text-decoration: none;
    font-family: inherit;
    box-sizing: border-box;
}
.nj-btn:hover { text-decoration: none; }
.nj-btn:disabled,
.nj-btn.nj-btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.nj-btn-primary {
    background: var(--nj-primary);
    color: #fff;
    border-color: var(--nj-primary);
}
.nj-btn-primary:hover:not(:disabled):not(.nj-btn-disabled) {
    background: var(--nj-primary-hover);
    border-color: var(--nj-primary-hover);
    color: #fff;
}

.nj-btn-outline {
    background: #fff;
    color: var(--nj-primary);
    border: 1px solid var(--nj-primary);
}
.nj-btn-outline:hover:not(:disabled):not(.nj-btn-disabled) {
    background: var(--nj-primary-soft);
    color: var(--nj-primary);
}

.nj-btn-ghost {
    background: transparent;
    color: var(--nj-text-secondary);
    border-color: transparent;
}
.nj-btn-ghost:hover:not(:disabled):not(.nj-btn-disabled) {
    background: var(--nj-bg-light);
    color: var(--nj-dark);
}

.nj-btn-danger {
    background: var(--nj-accent-red);
    color: #fff;
    border-color: var(--nj-accent-red);
}
.nj-btn-danger:hover:not(:disabled):not(.nj-btn-disabled) {
    background: var(--nj-accent-red-hover);
    border-color: var(--nj-accent-red-hover);
    color: #fff;
}

.nj-btn-neutral {
    background: var(--nj-bg-light);
    color: var(--nj-dark);
    border: 1px solid var(--nj-border);
}
.nj-btn-neutral:hover:not(:disabled):not(.nj-btn-disabled) {
    background: #ECEFF3;
    border-color: var(--nj-text-tertiary);
    color: var(--nj-dark);
}

.nj-btn-sm {
    padding: var(--nj-btn-padding-sm);
    font-size: 14px;
    font-weight: 500;
}
.nj-btn-lg {
    padding: var(--nj-btn-padding-lg);
    font-size: 16px;
}
.nj-btn-block {
    display: flex;
    width: 100%;
}

/* ============ Cards ============ */
.nj-card {
    background: #fff;
    border: 1px solid var(--nj-border-light);
    border-radius: var(--nj-card-radius);
    padding: var(--nj-card-padding);
}
.nj-card-elevated {
    background: #fff;
    border-radius: var(--nj-card-radius);
    box-shadow: var(--nj-card-shadow);
    padding: var(--nj-card-padding);
}
.nj-card-flush {
    padding: 0;
}

/* ============ List rows (게시판 / 공지 공용) ============ */
.nj-list {
    border-top: 2px solid var(--nj-dark);
    list-style: none;
    padding: 0;
    margin: 0;
}
.nj-list-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: var(--nj-row-padding-y) var(--nj-row-padding-x);
    border-bottom: 1px solid var(--nj-row-border);
    text-decoration: none;
    color: inherit;
    transition: background var(--nj-transition-fast);
}
a.nj-list-row {
    cursor: pointer;
}
.nj-list-row:hover {
    background: var(--nj-row-hover-bg);
    text-decoration: none;
    color: inherit;
}
/* inline 변형 — 단순 한 줄 (제목 + 우측 메타) */
.nj-list-row--inline {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 12px;
}
.nj-list-row--locked {
    cursor: default;
}

.nj-list-row__title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.45;
    color: var(--nj-dark);
    word-break: keep-all;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.nj-list-row--inline .nj-list-row__title {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    -webkit-line-clamp: 1;
    font-weight: 500;
    display: block;
}
.nj-list-row__title--locked {
    color: var(--nj-text-muted);
    font-weight: 600;
}

.nj-list-row__snippet {
    color: var(--nj-text-secondary);
    font-size: 14px;
    line-height: 1.55;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.nj-list-row__meta {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--nj-text-secondary);
}
.nj-list-row__meta .dot::before {
    content: '·';
    margin: 0 4px;
    color: var(--nj-text-muted);
}

.nj-list-row__date {
    font-size: 14px;
    color: var(--nj-text-muted);
    flex-shrink: 0;
}

.nj-list-row__badge {
    padding: 2px 6px;
    border-radius: 4px;
    background: #E8F4FE;
    color: #1B6FB7;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.5;
}
.nj-list-row__badge--locked {
    background: #F0F3FA;
    color: var(--nj-text-secondary);
}
.nj-list-row__badge--accent {
    background: var(--nj-primary-soft);
    color: var(--nj-primary);
}

.nj-list-empty {
    text-align: center;
    color: var(--nj-text-muted);
    padding: 48px 12px;
    font-size: 15px;
    border-bottom: 1px solid var(--nj-border-light);
}

/* ============ Forms ============ */
.nj-form-group {
    margin-bottom: 18px;
}
.nj-form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--nj-dark);
    margin-bottom: 8px;
    line-height: 1.4;
}
.nj-form-input,
.nj-form-textarea,
.nj-form-select {
    width: 100%;
    padding: var(--nj-input-padding);
    border: 1px solid var(--nj-input-border-color);
    border-radius: var(--nj-input-radius);
    font-size: 15px;
    line-height: 1.4;
    color: var(--nj-text-primary);
    background: #fff;
    transition: border-color var(--nj-transition-normal), box-shadow var(--nj-transition-normal);
    font-family: inherit;
    box-sizing: border-box;
}
.nj-form-input::placeholder,
.nj-form-textarea::placeholder {
    color: var(--nj-text-muted);
}
.nj-form-input:hover:not(:disabled):not([readonly]),
.nj-form-textarea:hover:not(:disabled):not([readonly]),
.nj-form-select:hover:not(:disabled):not([readonly]) {
    border-color: var(--nj-text-tertiary);
}
.nj-form-input:focus,
.nj-form-textarea:focus,
.nj-form-select:focus {
    outline: none;
    border-color: var(--nj-input-focus);
    box-shadow: 0 0 0 3px var(--nj-primary-soft);
}
.nj-form-input:read-only,
.nj-form-input[readonly],
.nj-form-textarea:read-only,
.nj-form-textarea[readonly] {
    background: var(--nj-bg-light);
    cursor: default;
}
.nj-form-input:disabled,
.nj-form-textarea:disabled,
.nj-form-select:disabled {
    background: var(--nj-bg-light);
    color: var(--nj-text-muted);
    cursor: not-allowed;
}
.nj-form-textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.6;
}
.nj-form-help {
    font-size: 13px;
    color: var(--nj-text-secondary);
    margin-top: 6px;
    line-height: 1.5;
}
.nj-form-error {
    font-size: 13px;
    color: var(--nj-accent-red);
    margin-top: 6px;
    line-height: 1.5;
}

/* ============ Tables ============ */
.nj-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    background: #fff;
}
.nj-table th {
    background: var(--nj-bg-light);
    color: var(--nj-text-primary);
    text-align: left;
    padding: 10px 12px;
    font-size: 14px;
    font-weight: 600;
    border-bottom: 1px solid var(--nj-border);
    white-space: nowrap;
}
.nj-table td {
    padding: 12px;
    border-bottom: 1px solid var(--nj-border-light);
    color: var(--nj-text-primary);
}
.nj-table tr:last-child td { border-bottom: 0; }
.nj-table tbody tr:hover td { background: var(--nj-row-hover-bg); }
.nj-table a:not(.nj-btn) {
    color: var(--nj-primary);
    text-decoration: none;
}
.nj-table a:not(.nj-btn):hover { text-decoration: underline; }

/* ============ Pagination ============ */
.nj-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    margin: 32px 0;
}
.nj-pagination-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 15px;
    color: var(--nj-text-secondary);
    background: #fff;
    border: 1px solid var(--nj-border);
    border-radius: var(--nj-radius-md);
    text-decoration: none;
    line-height: 1;
    transition: all var(--nj-transition-fast);
}
a.nj-pagination-item:hover {
    background: var(--nj-bg-light);
    color: var(--nj-dark);
    border-color: var(--nj-text-tertiary);
}
.nj-pagination-current {
    background: var(--nj-dark);
    color: #fff;
    border-color: var(--nj-dark);
    font-weight: 600;
}
.nj-pagination-disabled {
    color: var(--nj-text-disabled);
    background: var(--nj-bg-muted);
    cursor: not-allowed;
}
.nj-pagination-ellipsis {
    border: 0;
    background: transparent;
    color: var(--nj-text-tertiary);
    min-width: 20px;
    padding: 0 4px;
}

/* printPagination() (common_util.php) 의 .page_col 출력을 nj-pagination-item 모양으로 매핑 */
.nj-pagination .page_col {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 14px;
    color: var(--nj-text-secondary);
    background: #fff;
    border: 1px solid var(--nj-border);
    border-radius: var(--nj-radius-md);
    text-decoration: none;
    line-height: 1;
    transition: all var(--nj-transition-fast);
}
.nj-pagination a.page_col:hover {
    background: var(--nj-bg-light);
    color: var(--nj-dark);
    border-color: var(--nj-text-tertiary);
}
.nj-pagination .page_col.current_page_num,
.nj-pagination .page_col.current {
    background: var(--nj-dark);
    color: #fff;
    border-color: var(--nj-dark);
    font-weight: 600;
}

/* ============ Page / Section titles ============ */
.nj-page-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--nj-dark);
    letter-spacing: -0.5px;
    margin: 0 0 var(--nj-space-xl);
    font-family: var(--nj-font-heading);
    line-height: 1.3;
}
.nj-section-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--nj-dark);
    margin: 0 0 var(--nj-space-md);
    font-family: var(--nj-font-heading);
    line-height: 1.35;
}
.nj-section-subtitle {
    font-size: 14px;
    color: var(--nj-text-secondary);
    margin: -8px 0 var(--nj-space-md);
    line-height: 1.55;
}

/* ============ Badges / Pills ============ */
.nj-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.5;
    background: var(--nj-bg-light);
    color: var(--nj-text-primary);
    vertical-align: middle;
}
.nj-badge-primary {
    background: var(--nj-primary-soft);
    color: var(--nj-primary);
}
.nj-badge-danger {
    background: #FFEBEE;
    color: #C62828;
}
.nj-badge-success {
    background: rgba(50, 195, 135, 0.10);
    color: var(--nj-school-primary);
}
.nj-badge-warning {
    background: #FFF8E1;
    color: #8A6D17;
}
.nj-badge-muted {
    background: var(--nj-bg-light);
    color: var(--nj-text-muted);
}

/* ============ Tabs ============ */
.nj-tabs {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--nj-border);
    overflow-x: auto;
    scrollbar-width: none;
    gap: 0;
}
.nj-tabs::-webkit-scrollbar { display: none; }
.nj-tab {
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--nj-text-secondary);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: color var(--nj-transition-normal);
    background: transparent;
    border-top: 0;
    border-left: 0;
    border-right: 0;
}
.nj-tab:hover { color: var(--nj-dark); }
.nj-tab.active {
    color: var(--nj-dark);
    font-weight: 700;
    border-bottom-color: var(--nj-primary);
}

/* ============ Article body (post 본문) ============ */
.nj-article {
    padding: var(--nj-space-xl) 0 var(--nj-space-2xl);
}
.nj-article__title {
    font-size: 30px;
    font-weight: 800;
    color: var(--nj-dark);
    line-height: 1.3;
    letter-spacing: -0.5px;
    margin: 0 0 var(--nj-space-md);
    font-family: var(--nj-font-heading);
    word-break: keep-all;
}
.nj-article__meta {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: var(--nj-space-lg);
    border-bottom: 1px solid var(--nj-border-light);
    font-size: 14px;
    color: var(--nj-text-secondary);
    flex-wrap: wrap;
}
.nj-article__meta .nj-article__author {
    font-weight: 600;
    color: var(--nj-dark);
}
.nj-article__body {
    padding: var(--nj-space-2xl) 0;
    font-size: 17px;
    line-height: 1.8;
    color: var(--nj-text-primary);
    border-bottom: 1px solid var(--nj-border-light);
    word-break: keep-all;
    min-height: 200px;
}
.nj-article__body p {
    margin: 0 0 var(--nj-space-md);
}
.nj-article__body img {
    max-width: 100%;
    height: auto;
    margin: var(--nj-space-md) 0;
    border-radius: var(--nj-radius-md);
}
.nj-article__body h2,
.nj-article__body h3 {
    font-family: var(--nj-font-heading);
    margin: var(--nj-space-xl) 0 var(--nj-space-md);
    color: var(--nj-dark);
    line-height: 1.3;
}
.nj-article__body h2 { font-size: 24px; font-weight: 800; }
.nj-article__body h3 { font-size: 20px; font-weight: 700; }
.nj-article__body blockquote {
    border-left: 3px solid var(--nj-primary);
    padding: 8px 16px;
    margin: var(--nj-space-md) 0;
    color: var(--nj-text-secondary);
    background: var(--nj-bg-light);
    border-radius: 0 var(--nj-radius-md) var(--nj-radius-md) 0;
}
.nj-article__body ul,
.nj-article__body ol {
    margin: 0 0 var(--nj-space-md);
    padding-left: var(--nj-space-lg);
}
.nj-article__body ul { list-style: disc; }
.nj-article__body ol { list-style: decimal; }
.nj-article__body li {
    margin-bottom: 4px;
}

/* ============ Article navigation (이전/다음) ============ */
.nj-article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: var(--nj-space-lg) 0;
    flex-wrap: wrap;
}
.nj-article-nav-spacer { flex: 1; }

/* ============ Mobile ============ */
@media (max-width: 768px) {
    .nj-list-row {
        padding: 14px 8px;
    }
    .nj-list-row--inline {
        padding: 16px 8px;
    }
    .nj-list-row__title {
        font-size: 15px;
    }
    .nj-page-title {
        font-size: 22px;
    }
    .nj-section-title {
        font-size: 18px;
    }
    .nj-article__title {
        font-size: 24px;
    }
    .nj-article__body {
        font-size: 16px;
        line-height: 1.7;
        padding: var(--nj-space-xl) 0;
    }
    .nj-card,
    .nj-card-elevated {
        padding: 16px;
    }
    .nj-pagination-item {
        min-width: 32px;
        height: 32px;
        font-size: 14px;
    }
}

/* ============ Legacy bridges — 스쿨 페이지의 기존 클래스를 nj-* 모양으로 매핑.
   HTML 변경 없이 시각만 정렬. 점진적 마이그레이션 후 제거 예정. ============ */

/* post.css 의 게시글 본문 */
.post_title {
    font-size: 30px !important;
    font-weight: 800;
    color: var(--nj-dark);
    line-height: 1.3;
    letter-spacing: -0.5px;
    margin: 0 0 var(--nj-space-md);
    font-family: var(--nj-font-heading);
    word-break: keep-all;
}
.post_content {
    padding: var(--nj-space-2xl) 0 !important;
    font-size: 17px !important;
    line-height: 1.8;
    color: var(--nj-text-primary);
    border-top: 1px solid var(--nj-border-light) !important;
    border-bottom: 1px solid var(--nj-border-light) !important;
    word-break: keep-all;
    min-height: 200px;
}

/* post.css 의 표준 버튼들 — nj-btn 모양으로 정렬 */
.post_back_btn,
.main_notice_back,
.post_write_btn,
.post_modify_btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: auto !important;
    height: auto !important;
    line-height: 1.2 !important;
    padding: var(--nj-btn-padding-md) !important;
    border-radius: var(--nj-btn-radius) !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    background: var(--nj-primary) !important;
    color: #fff !important;
    border: 1px solid var(--nj-primary) !important;
    font-family: inherit !important;
    transition: all var(--nj-transition-normal);
    cursor: pointer;
    text-decoration: none;
}
.post_back_btn:hover,
.main_notice_back:hover,
.post_write_btn:hover,
.post_modify_btn:hover {
    background: var(--nj-primary-hover) !important;
    border-color: var(--nj-primary-hover) !important;
    color: #fff !important;
    text-decoration: none;
}
.post_delete_btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: auto !important;
    height: auto !important;
    line-height: 1.2 !important;
    padding: var(--nj-btn-padding-md) !important;
    border-radius: var(--nj-btn-radius) !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    background: var(--nj-accent-red) !important;
    color: #fff !important;
    border: 1px solid var(--nj-accent-red) !important;
    font-family: inherit !important;
    cursor: pointer;
}
.post_delete_btn:hover {
    background: var(--nj-accent-red-hover) !important;
    border-color: var(--nj-accent-red-hover) !important;
}
.post_previous_btn,
.post_next_btn {
    font-family: inherit !important;
    font-size: 15px !important;
    font-weight: 500;
    color: var(--nj-text-secondary) !important;
    border: 0;
    background: transparent;
    padding: 6px 8px;
    cursor: pointer;
}
.post_previous_btn:hover,
.post_next_btn:hover {
    color: var(--nj-dark) !important;
}

.qna_post_fixed_button,
.download_pdf_button {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    height: auto !important;
    padding: var(--nj-btn-padding-md) !important;
    border-radius: var(--nj-btn-radius) !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    background: var(--nj-primary) !important;
    color: #fff !important;
    border: 1px solid var(--nj-primary) !important;
    cursor: pointer;
}
.qna_post_fixed_button.release {
    background: var(--nj-accent-red) !important;
    border-color: var(--nj-accent-red) !important;
}

/* post.css 의 댓글 영역 */
.post_comment {
    padding: 16px !important;
    border-radius: var(--nj-card-radius) !important;
    border: 1px solid var(--nj-border-light) !important;
    margin-top: var(--nj-space-md) !important;
}
.comment_input_box {
    padding: 14px 16px !important;
    border: 1px solid var(--nj-input-border-color) !important;
    border-radius: var(--nj-input-radius) !important;
    transition: border-color var(--nj-transition-normal);
}
.comment_input_box:focus-within {
    border-color: var(--nj-input-focus) !important;
    box-shadow: 0 0 0 3px var(--nj-primary-soft);
}
.comment_input {
    font-family: inherit !important;
    font-size: 15px !important;
    line-height: 1.6;
}
.comment_add_btn {
    padding: 8px 16px !important;
    border-radius: var(--nj-btn-radius) !important;
    background: var(--nj-primary) !important;
    color: #fff !important;
    font-family: inherit !important;
    font-size: 14px !important;
    font-weight: 600;
    border: 0 !important;
    cursor: pointer;
    width: auto !important;
}
.comment_add_btn:hover:not(:disabled) {
    background: var(--nj-primary-hover) !important;
}
.comment_add_btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--nj-text-disabled) !important;
}

/* sign.css / payment.css 의 input 류를 nj 모양으로 정렬 (HTML 변경 없이) */
.input_line,
.input_box input[type="text"],
.input_box input[type="password"],
.input_box input[type="email"],
.input_box input[type="tel"],
.input_box select,
.payment_input,
.modify_input {
    padding: var(--nj-input-padding) !important;
    border: 1px solid var(--nj-input-border-color) !important;
    border-radius: var(--nj-input-radius) !important;
    font-size: 15px !important;
    line-height: 1.4 !important;
    background: #fff !important;
    transition: border-color var(--nj-transition-normal), box-shadow var(--nj-transition-normal);
    box-sizing: border-box;
    font-family: inherit !important;
}
.input_line:focus,
.input_box input:focus,
.input_box select:focus,
.payment_input:focus,
.modify_input:focus {
    outline: none;
    border-color: var(--nj-input-focus) !important;
    box-shadow: 0 0 0 3px var(--nj-primary-soft);
}
.sign_label {
    display: block;
    font-size: 14px !important;
    font-weight: 600 !important;
    color: var(--nj-dark) !important;
    margin: 0 0 8px !important;
    line-height: 1.4;
}

/* sign.css 의 로그인/가입 버튼 */
.login_btn,
.signup_btn,
.signup_complete_btn,
.find_id_btn,
.find_password_btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    height: auto !important;
    line-height: 1.2 !important;
    padding: var(--nj-btn-padding-lg) !important;
    border-radius: var(--nj-btn-radius) !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    background: var(--nj-primary) !important;
    color: #fff !important;
    border: 1px solid var(--nj-primary) !important;
    font-family: inherit !important;
    cursor: pointer;
    transition: all var(--nj-transition-normal);
    text-decoration: none;
}
.login_btn:hover,
.signup_btn:hover,
.signup_complete_btn:hover,
.find_id_btn:hover,
.find_password_btn:hover {
    background: var(--nj-primary-hover) !important;
    border-color: var(--nj-primary-hover) !important;
    color: #fff !important;
}

/* main.css 의 카드/박스 — shadow 정규화 */
.white_border_box {
    box-shadow: var(--nj-shadow-sm) !important;
    border-radius: var(--nj-card-radius) !important;
}
.buy_box {
    box-shadow: var(--nj-shadow-md) !important;
    border-radius: var(--nj-card-radius) !important;
}
.video_box {
    border-radius: var(--nj-card-radius) !important;
    box-shadow: var(--nj-shadow-sm) !important;
}

/* lecture.css 의 강좌 게시판 row (`<ul class="board_body"><li class="board">` 구조) —
   2단 box 를 nj-list-row 모양으로 정렬. HTML 은 그대로 두고 CSS 만 재정의. */
.board_body { padding: 0; margin: 0; list-style: none; }
.board_body > li.board {
    display: flex !important;
    flex-direction: column;
    gap: 6px;
    padding: var(--nj-row-padding-y) var(--nj-row-padding-x) !important;
    border-bottom: 1px solid var(--nj-row-border) !important;
    transition: background var(--nj-transition-fast);
}
.board_body > li.board:hover {
    background: var(--nj-row-hover-bg);
}
.board_body .board_post_meta_info_box {
    display: flex !important;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 0 !important;
    padding: 0 !important;
    justify-content: space-between;
}
.board_body .board_post_meta_info_box.bottom { margin-top: 0 !important; }
.board_body .board_post_name,
.board_body a.board_post_name {
    flex: 1;
    min-width: 0;
    font-size: 16px !important;
    font-weight: 700 !important;
    color: var(--nj-dark) !important;
    line-height: 1.45 !important;
    text-decoration: none !important;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: keep-all;
    white-space: nowrap;
    display: block;
}
.board_body .board_writer,
.board_body .board_reply_count,
.board_body .board_date,
.board_body .meta_info_left,
.board_body .meta_info_right {
    font-size: 13px !important;
    color: var(--nj-text-secondary) !important;
    line-height: 1.4;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.board_body .board_reply_count img {
    width: 14px;
    height: 14px;
    vertical-align: middle;
}
.board_body .board_empty_row {
    text-align: center;
    color: var(--nj-text-muted);
    padding: 48px 12px;
    font-size: 15px;
}

/* 게시판 컨트롤 영역 (글쓰기 버튼 + 페이지네이션 + 더보기) */
.board_control_box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin: var(--nj-space-lg) 0;
}
.board_control_box .pagination_box {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
}
.board_control_box .pagination_box .page_col {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 15px;
    color: var(--nj-text-secondary);
    background: #fff;
    border: 1px solid var(--nj-border);
    border-radius: var(--nj-radius-md);
    text-decoration: none;
    line-height: 1;
    transition: all var(--nj-transition-fast);
}
.board_control_box .pagination_box a.page_col:hover {
    background: var(--nj-bg-light);
    color: var(--nj-dark);
    border-color: var(--nj-text-tertiary);
}
.board_control_box .pagination_box .page_col.current_page_num {
    background: var(--nj-dark);
    color: #fff;
    border-color: var(--nj-dark);
    font-weight: 600;
}
.board_control_box .board_write_btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    height: auto !important;
    padding: var(--nj-btn-padding-md) !important;
    border-radius: var(--nj-btn-radius) !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    background: var(--nj-primary) !important;
    color: #fff !important;
    border: 1px solid var(--nj-primary) !important;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.2;
}

/* 검색 박스 (게시판 상단/하단) */
.board_search_box {
    display: flex;
    align-items: center;
    margin: var(--nj-space-md) 0;
}
.board_search_box form {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-left: auto;
}
.board_search_box .search_select {
    padding: 8px 10px;
    border: 1px solid var(--nj-input-border-color);
    border-radius: var(--nj-input-radius);
    font-size: 14px;
    background: #fff;
}
.board_search_box .search_input {
    padding: 8px 12px;
    border: 1px solid var(--nj-input-border-color);
    border-radius: var(--nj-input-radius);
    font-size: 14px;
    min-width: 180px;
}
.board_search_box .search_input:focus {
    outline: none;
    border-color: var(--nj-input-focus);
    box-shadow: 0 0 0 3px var(--nj-primary-soft);
}
.board_search_box .search_button {
    padding: 0 14px !important;
    border-radius: var(--nj-input-radius) !important;
    background: var(--nj-primary) !important;
    color: #fff !important;
    border: 0 !important;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-sizing: border-box;
}

/* 게시판 제목 영역 — lecture.css 의 기존 .board_title_box / .board_title_name 룰을
   override 해야 하므로 !important 강제. */
.board_title_box {
    display: flex !important;
    align-items: flex-end !important;
    justify-content: space-between !important;
    gap: 16px !important;
    padding: 0 0 var(--nj-space-md) !important;
    border-bottom: 2px solid var(--nj-dark) !important;
    margin-bottom: var(--nj-space-md) !important;
    background: transparent !important;
}
.board_title_box .board_title_name {
    font-size: 22px !important;
    font-weight: 800 !important;
    color: var(--nj-dark) !important;
    font-family: var(--nj-font-heading) !important;
    letter-spacing: -0.3px !important;
    line-height: 1.3 !important;
    margin: 0 !important;
    padding: 0 !important;
}