/* ============================================
   Nullvuild 레이아웃 스타일 참고용
   Bootstrap 5 기반
   ============================================ */

/* ============================================
   CSS 변수 (Bootstrap 5 Override)
   ============================================ */
:root {
    --navbar-height: 3.5rem;
}

/* 다크 모드 변수 (X/Twitter 스타일) */
:root[data-bs-theme="dark"] {
    --bs-body-bg: #000000;
    --bs-body-color: #e7e9ea;
    --bs-border-color: #2f3336;
    --bs-card-bg: #000000;
    --bs-sidebar-bg: #000000;
    --bs-hover-bg: #16181c;
    --bs-code-bg: #16181c;
    --bs-blockquote-border: #2f3336;
    --bs-text-muted: #71767b;
    --bs-link-color: #1d9bf0;
    --bs-tag-bg: #16181c;
    --bs-tag-color: #1d9bf0;
    --bs-navbar-bg: rgba(0, 0, 0, 0.65);
}

/* 라이트 모드 변수 (미디엄 베이지 신문 스타일) */
:root[data-bs-theme="light"] {
    --bs-body-bg: #ebe8e0;
    --bs-body-color: #4a4a4a;
    --bs-border-color: #cdc9c0;
    --bs-card-bg: #f2efe8;
    --bs-sidebar-bg: #eeebe4;
    --bs-hover-bg: #e0ddd5;
    --bs-code-bg: #e8e5dd;
    --bs-blockquote-border: #bfbbb2;
    --bs-text-muted: #8a8a8a;
    --bs-link-color: #4a7c59;
    --bs-tag-bg: #e0ddd5;
    --bs-tag-color: #4a7c59;
    --bs-navbar-bg: rgba(242, 239, 232, 0.88);
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    overflow-y: scroll; /* 항상 세로 스크롤바 표시 */
}

body {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    padding-top: 3.5rem;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    transition: padding-top 0.3s ease;
}

body.navbar-hidden {
    padding-top: 0;
}

@media (max-width: 767.98px) {
    body {
        padding-top: 3rem;
    }
    
    body.navbar-hidden {
        padding-top: 0;
    }
}

/* navbar 높이 고정 */
.navbar {
    height: var(--navbar-height);
}

/* 메인 컨텐츠 상단 여백 */
#main-content {
    margin-top: 0;
}

/* ============================================
   네비게이션 바
   ============================================ */
.top-navigation,
.navbar-custom {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: var(--navbar-height);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background-color: var(--bs-navbar-bg) !important;
    border-bottom: 1px solid var(--bs-border-color);
    z-index: 1030;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform: translateY(0);
    opacity: 1;
}

.top-navigation.hidden,
.navbar-custom.hidden {
    transform: translateY(-100%);
    opacity: 0;
}

.top-navigation.visible,
.navbar-custom.visible {
    transform: translateY(0);
    opacity: 1;
}

/* 라이트 모드 네비게이션 */
:root[data-bs-theme="light"] .navbar,
:root[data-bs-theme="light"] .top-navigation {
    background-color: var(--bs-navbar-bg) !important;
    border-bottom: 1px solid #cdc9c0;
}

/* 다크 모드 네비게이션 */
:root[data-bs-theme="dark"] .navbar,
:root[data-bs-theme="dark"] .top-navigation {
    background-color: var(--bs-navbar-bg) !important;
    border-bottom: 1px solid #2f3336;
}

:root[data-bs-theme="light"] .navbar-brand,
:root[data-bs-theme="light"] .navbar .nav-link,
:root[data-bs-theme="light"] .top-navigation-brand {
    color: #4a4a4a !important;
}

.top-navigation-container {
    max-width: 100%;
    height: 100%;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.top-navigation-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--bs-body-color);
    font-weight: 600;
    font-size: 1.25rem;
}

.top-navigation-brand img {
    border-radius: 6px;
}

.top-navigation-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ============================================
   네비게이션 버튼
   ============================================ */
.nav-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.375rem;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.nav-icon-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
}

.nav-icon-btn.primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.nav-icon-btn.primary:hover {
    background-color: #0b5ed7;
    border-color: #0b5ed7;
}

:root[data-bs-theme="light"] .nav-icon-btn {
    color: #4a4a4a;
    border-color: #cdc9c0;
}

:root[data-bs-theme="light"] .nav-icon-btn:hover {
    background-color: #e0ddd5;
    border-color: #bfbbb2;
    color: #4a4a4a;
}

.nav-user-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 36px;
    padding: 0 12px;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.375rem;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-user-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

:root[data-bs-theme="light"] .nav-user-btn {
    color: #4a4a4a;
    border-color: #cdc9c0;
}

:root[data-bs-theme="light"] .nav-user-btn:hover {
    background-color: #e0ddd5;
    border-color: #bfbbb2;
}

.nav-user-btn img {
    width: 24px;
    height: 24px;
    object-fit: cover;
    border-radius: 50%;
}

/* 버튼 스타일 */
:root[data-bs-theme="light"] .btn-outline-light {
    color: #4a4a4a;
    border-color: #cdc9c0;
    background-color: transparent;
}

:root[data-bs-theme="light"] .btn-outline-light:hover {
    background-color: #e0ddd5;
    border-color: #bfbbb2;
    color: #4a4a4a;
}

:root[data-bs-theme="dark"] .btn-outline-light {
    color: #e7e9ea;
    border-color: #2f3336;
}

:root[data-bs-theme="dark"] .btn-outline-light:hover {
    background-color: #16181c;
    border-color: #2f3336;
    color: #e7e9ea;
}

:root[data-bs-theme="light"] .btn-primary {
    background-color: #4a7c59;
    border-color: #4a7c59;
    color: #ffffff;
}

:root[data-bs-theme="light"] .btn-primary:hover {
    background-color: #3d6849;
    border-color: #3d6849;
}

:root[data-bs-theme="dark"] .btn-primary {
    background-color: #1d9bf0;
    border-color: #1d9bf0;
    color: #ffffff;
}

:root[data-bs-theme="dark"] .btn-primary:hover {
    background-color: #1a8cd8;
    border-color: #1a8cd8;
}

/* ============================================
   드롭다운 메뉴
   ============================================ */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle::after {
    display: inline-block;
    margin-left: 0.255em;
    vertical-align: 0.255em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
}

.dropdown-menu {
    z-index: 1031 !important;
    background-color: var(--bs-card-bg);
    border-color: var(--bs-border-color);
    position: absolute !important;
    right: 0 !important;
    left: auto !important;
    margin-top: 0.5rem !important;
    min-width: 200px;
    border-radius: 8px;
}

.dropdown-menu.show {
    display: block !important;
    transform: translate(-10px, 0) !important;
}

@media (max-width: 767.98px) {
    .dropdown-menu {
        min-width: 200px !important;
        max-width: calc(100vw - 2rem) !important;
    }
}

:root[data-bs-theme="light"] .dropdown-menu {
    background-color: #f2efe8;
    border-color: #cdc9c0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

:root[data-bs-theme="light"] .dropdown-item {
    color: #4a4a4a;
}

:root[data-bs-theme="light"] .dropdown-item:hover {
    background-color: #e0ddd5;
}

:root[data-bs-theme="dark"] .dropdown-menu {
    background-color: #000000;
    border-color: #2f3336;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

:root[data-bs-theme="dark"] .dropdown-item {
    color: #e7e9ea;
}

:root[data-bs-theme="dark"] .dropdown-item:hover {
    background-color: #16181c;
}

.dropdown-item {
    padding: 0.75rem 1rem;
    transition: all 0.2s;
    color: var(--bs-body-color);
}

.dropdown-item:hover {
    background: var(--bs-hover-bg);
    color: var(--bs-body-color);
}

.dropdown-item i {
    width: 20px;
    margin-right: 0.5rem;
}

.dropdown-divider {
    margin: 0.5rem 0;
    border-color: var(--bs-border-color);
}

/* ============================================
   레이아웃 컨테이너
   ============================================ */
.container-fluid {
    padding-left: 0;
    padding-right: 0;
    padding-top: 0;
    padding-bottom: 1rem;
    max-width: 100%;
    overflow-x: hidden;
}

.container-fluid > .row {
    padding-top: 1rem;
    margin-left: 0;
    margin-right: 0;
}

.row {
    margin-left: 0;
    margin-right: 0;
}

.row > * {
    padding-left: 0;
    padding-right: 0;
}

/* 입력 필드 스타일 */
:root[data-bs-theme="light"] .form-control,
:root[data-bs-theme="light"] .form-select {
    background-color: #f2efe8;
    border-color: #cdc9c0;
    color: #4a4a4a;
}

:root[data-bs-theme="light"] .form-control:focus,
:root[data-bs-theme="light"] .form-select:focus {
    background-color: #f2efe8;
    border-color: #4a7c59;
    color: #4a4a4a;
    box-shadow: 0 0 0 0.2rem rgba(74, 124, 89, 0.1);
}

:root[data-bs-theme="dark"] .form-control,
:root[data-bs-theme="dark"] .form-select {
    background-color: #000000;
    border-color: #2f3336;
    color: #e7e9ea;
}

:root[data-bs-theme="dark"] .form-control:focus,
:root[data-bs-theme="dark"] .form-select:focus {
    background-color: #000000;
    border-color: #1d9bf0;
    color: #e7e9ea;
    box-shadow: 0 0 0 0.2rem rgba(29, 155, 240, 0.25);
}

/* 텍스트 색상 */
:root[data-bs-theme="light"] .text-muted {
    color: #8a8a8a !important;
}

:root[data-bs-theme="dark"] .text-muted {
    color: #71767b !important;
}

/* ============================================
   사이드바 (3열 레이아웃)
   ============================================ */
.sidebar {
    height: calc(100vh - 56px);
    overflow-y: auto;
    background-color: var(--bs-sidebar-bg) !important;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.sidebar::-webkit-scrollbar {
    display: none;
}

.sidebar .nav-link {
    color: var(--bs-body-color);
    border-radius: 0.375rem;
    margin-bottom: 0.25rem;
}

.sidebar .nav-link:hover {
    background-color: var(--bs-hover-bg);
    color: var(--bs-body-color);
}

.sidebar .nav-link.active {
    background-color: #1f6feb;
    color: #ffffff;
}

.toc {
    height: calc(100vh - 56px);
    overflow-y: auto;
    border-left: 1px solid var(--bs-border-color);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.toc::-webkit-scrollbar {
    display: none;
}

/* ============================================
   메인 콘텐츠 (3열 레이아웃)
   ============================================ */
.main-content {
    height: calc(100vh - 56px);
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.main-content::-webkit-scrollbar {
    display: none;
}

/* ============================================
   공통 컴포넌트
   ============================================ */

/* 네비게이션 링크 */
.nav-link {
    color: var(--bs-body-color);
    transition: all 0.2s;
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.nav-link:hover {
    background-color: var(--bs-hover-bg);
    color: var(--bs-body-color);
}

.nav-link.active {
    background-color: var(--bs-hover-bg);
    color: var(--bs-body-color);
    font-weight: 600;
}

/* 게시글 아이템 */
.post-item {
    padding: 1rem;
    border-bottom: 1px solid var(--bs-border-color);
    transition: background-color 0.2s;
    cursor: pointer;
}

.post-item:hover {
    background-color: var(--bs-hover-bg);
}

.post-item:last-child {
    border-bottom: none;
}

.post-item-bordered {
    border-top: 1px solid var(--bs-border-color) !important;
    border-bottom: 1px solid var(--bs-border-color) !important;
}

/* 태그 배지 */
.tag,
.tag-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    margin: 0.125rem;
    background-color: rgba(139, 148, 158, 0.15);
    border: 1px solid rgba(139, 148, 158, 0.3);
    border-radius: 1rem;
    font-size: 0.875rem;
    color: rgba(139, 148, 158, 0.9);
    text-decoration: none;
    transition: all 0.2s;
}

.tag:hover,
.tag-badge:hover {
    background-color: rgba(139, 148, 158, 0.25);
    color: rgba(139, 148, 158, 1);
    border-color: rgba(139, 148, 158, 0.5);
}

:root[data-bs-theme="light"] .tag,
:root[data-bs-theme="light"] .tag-badge {
    background-color: rgba(139, 148, 158, 0.1);
    color: rgba(101, 109, 118, 0.85);
    border-color: rgba(139, 148, 158, 0.25);
}

:root[data-bs-theme="light"] .tag:hover,
:root[data-bs-theme="light"] .tag-badge:hover {
    background-color: rgba(139, 148, 158, 0.18);
    color: rgba(101, 109, 118, 1);
    border-color: rgba(139, 148, 158, 0.4);
}

.search-highlight {
    background-color: #fbbf24;
    color: #000;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
}

/* 백드롭 블러 */
.backdrop-blur {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* 작은 배지 */
.badge-sm {
    font-size: 0.7rem;
    padding: 0.2em 0.5em;
}

/* 사용자 아이템 */
.user-item {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-item img {
    border-radius: 50%;
}

/* ============================================
   마크다운 콘텐츠 스타일
   ============================================ */
.markdown-content,
.markdown-body {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.markdown-content .nv-block {
    position: relative;
    min-height: 1.6em;
    margin-bottom: 0.5em;
    padding: 4px 8px;
    border-radius: 3px;
}

.markdown-content .nv-block h1 { 
    font-size: 2em; 
    margin: 0; 
    border-bottom: 1px solid var(--bs-border-color); 
}

.markdown-content .nv-block h2 { 
    font-size: 1.5em; 
    margin: 0; 
    border-bottom: 1px solid var(--bs-border-color); 
}

.markdown-content .nv-block h3 { 
    font-size: 1.3em; 
    margin: 0; 
}

.markdown-content .nv-block h4 { 
    font-size: 1.1em; 
    margin: 0; 
}

.markdown-content .nv-block p { 
    margin: 0; 
}

.markdown-content .nv-block blockquote { 
    border-left: 4px solid #0d6efd; 
    padding-left: 16px; 
    margin: 0; 
    color: var(--bs-secondary-color);
    font-style: italic;
}

.markdown-content .nv-block hr {
    border: none;
    border-top: 2px solid var(--bs-border-color);
    margin: 16px 0;
}

.markdown-content .nv-block ul, 
.markdown-content .nv-block ol {
    margin: 0;
    padding-left: 20px;
}

.markdown-content .nv-block li {
    margin: 4px 0;
}

.markdown-content .nv-block code { 
    background: var(--bs-secondary-bg);
    color: var(--bs-emphasis-color);
    padding: 2px 6px; 
    border-radius: 3px; 
    font-family: 'Consolas', 'Monaco', monospace;
}

.markdown-content .nv-block pre {
    background: var(--bs-secondary-bg);
    color: var(--bs-body-color);
    padding: 12px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 0;
}

.markdown-content .nv-block pre code {
    background: none;
    padding: 0;
}

.markdown-content .nv-block strong { 
    font-weight: bold; 
}

.markdown-content .nv-block em { 
    font-style: italic; 
}

.markdown-content .nv-block a { 
    color: #0d6efd; 
    text-decoration: none; 
}

.markdown-content .nv-block a:hover { 
    text-decoration: underline; 
}

.markdown-content .nv-block img { 
    max-width: 100%; 
    height: auto; 
    border-radius: 4px; 
    margin: 4px 0;
    cursor: pointer;
    background-color: #ffffff;
}

.markdown-content .nv-block table {
    width: 100%;
    border-collapse: collapse;
    margin: 8px 0;
    background: var(--bs-body-bg);
}

.markdown-content .nv-block table th,
.markdown-content .nv-block table td {
    border: 1px solid var(--bs-border-color);
    padding: 8px 12px;
    text-align: left;
}

.markdown-content .nv-block table th {
    background: var(--bs-secondary-bg);
    font-weight: bold;
}

.markdown-content .nv-block table tr:nth-child(even) {
    background: var(--bs-tertiary-bg);
}

.markdown-content .nv-block table tr:hover {
    background: var(--bs-secondary-bg);
}

/* ============================================
   다크 모드 오버라이드
   ============================================ */
[data-bs-theme="dark"] .markdown-content .nv-block code {
    background: #2d2d2d;
    color: #f8f8f2;
}

[data-bs-theme="dark"] .markdown-content .nv-block pre {
    background: #2d2d2d;
    color: #f8f8f2;
}

[data-bs-theme="dark"] .markdown-content .nv-block table {
    background: #2d2d2d;
}

[data-bs-theme="dark"] .markdown-content .nv-block table th {
    background: #1a1a1a;
}

/* ============================================
   카드 스타일 (다크/라이트 모두 적용)
   ============================================ */
.card {
    background-color: var(--bs-card-bg);
    border-color: var(--bs-border-color);
    border-radius: 12px;
    transition: all 0.2s;
}

:root[data-bs-theme="light"] .card {
    background-color: #f2efe8;
    border-color: #cdc9c0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

:root[data-bs-theme="dark"] .card {
    background-color: #000000;
    border-color: #2f3336;
}

.card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: var(--bs-secondary-bg);
    border-bottom: 1px solid var(--bs-border-color);
    padding: 1rem;
}

.card-body {
    padding: 1rem;
}

.card-footer {
    background: var(--bs-secondary-bg);
    border-top: 1px solid var(--bs-border-color);
    padding: 1rem;
}

/* ============================================
   테이블 스타일
   ============================================ */
.table {
    color: var(--bs-body-color);
}

.table-hover tbody tr:hover {
    background-color: var(--bs-hover-bg);
}

/* ============================================
   리스트 그룹
   ============================================ */
.list-group-item {
    background: var(--bs-body-bg);
    border-color: var(--bs-border-color);
    color: var(--bs-body-color);
}

.list-group-item:hover {
    background: var(--bs-hover-bg);
}

.list-group-item-action:hover {
    background: var(--bs-hover-bg);
    color: var(--bs-body-color);
}

/* ============================================
   반응형 조정
   ============================================ */

/* 태블릿 (768px 미만) */
@media (max-width: 767.98px) {
    .top-navigation-container {
        padding: 0 0.5rem;
    }
    
    .nav-user-btn span {
        display: none;
    }
    
    .top-navigation-menu {
        gap: 0.25rem;
    }
}

/* 모바일 (576px 미만) */
@media (max-width: 575.98px) {
    .nav-icon-btn {
        width: 36px;
        height: 36px;
    }
    
    .top-navigation-brand {
        font-size: 1rem;
    }
}

/* ============================================
   유틸리티 클래스
   ============================================ */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hover-shadow {
    transition: box-shadow 0.2s;
}

.hover-shadow:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ============================================
   마크다운 블록 스타일 추가
   ============================================ */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: bold;
    color: var(--bs-body-color);
}

.markdown-body h1 {
    font-size: 2em;
    border-bottom: 1px solid var(--bs-border-color);
    padding-bottom: 0.3em;
}

.markdown-body h2 {
    font-size: 1.5em;
    border-bottom: 1px solid var(--bs-border-color);
    padding-bottom: 0.3em;
}

.markdown-body h3 {
    font-size: 1.25em;
}

.markdown-body h4 {
    font-size: 1em;
}

.markdown-body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.8;
    font-size: 18px;
    color: var(--bs-body-color);
}

:root[data-bs-theme="light"] .markdown-body {
    color: #4a4a4a;
}

:root[data-bs-theme="dark"] .markdown-body {
    color: #e7e9ea;
}

.markdown-body p {
    margin-bottom: 1rem;
}

.markdown-body code {
    background: var(--bs-code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
    color: var(--bs-body-color);
}

:root[data-bs-theme="light"] .markdown-body code {
    background: #e8e5dd;
    color: #4a4a4a;
    border: 1px solid #cdc9c0;
}

:root[data-bs-theme="dark"] .markdown-body code {
    background: #16181c;
    color: #e7e9ea;
}

.markdown-body pre {
    background: var(--bs-code-bg);
    padding: 16px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
}

:root[data-bs-theme="light"] .markdown-body pre {
    background: #e8e5dd;
    border: 1px solid #cdc9c0;
}

:root[data-bs-theme="dark"] .markdown-body pre {
    background: #16181c;
    border: 1px solid #2f3336;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
    border: none;
}

.markdown-body blockquote {
    border-left: 4px solid var(--bs-blockquote-border);
    padding-left: 16px;
    color: var(--bs-text-muted);
    margin: 1rem 0;
}

.markdown-body ul, 
.markdown-body ol {
    margin: 1rem 0;
    padding-left: 2em;
}

.markdown-body li {
    margin: 0.5rem 0;
}

.markdown-body a {
    color: var(--bs-link-color);
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body hr {
    border: none;
    border-top: 2px solid var(--bs-border-color);
    margin: 1.5rem 0;
}

.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 1rem 0;
    padding: 8px;
    background-color: #ffffff !important;
}

:root[data-bs-theme="light"] .markdown-body img {
    border: 1px solid #cdc9c0;
}

:root[data-bs-theme="dark"] .markdown-body img {
    border: 1px solid #2f3336;
}

.markdown-body table img {
    background-color: #ffffff !important;
    padding: 4px;
    margin: 0.25rem 0;
}

.markdown-body strong {
    font-weight: bold;
}

.markdown-body em {
    font-style: italic;
}

.markdown-body del {
    text-decoration: line-through;
}

.markdown-body ins {
    text-decoration: underline;
    text-decoration-color: var(--bs-success);
    text-decoration-thickness: 2px;
    background-color: rgba(25, 135, 84, 0.1);
}

.markdown-body mark {
    background-color: rgba(255, 193, 7, 0.3);
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

:root[data-bs-theme="light"] .markdown-body mark {
    background-color: rgba(255, 193, 7, 0.25);
}

:root[data-bs-theme="dark"] .markdown-body mark {
    background-color: rgba(255, 193, 7, 0.2);
}

.markdown-body sub,
.markdown-body sup {
    font-size: 0.75em;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    overflow: hidden;
    border-radius: 6px;
    border: 1px solid var(--bs-border-color);
}

.markdown-body table thead {
    background-color: var(--bs-hover-bg);
}

.markdown-body table th,
.markdown-body table td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--bs-border-color);
    text-align: left;
}

.markdown-body table th {
    font-weight: 600;
    color: var(--bs-body-color);
}

.markdown-body table tr:nth-child(even) {
    background-color: var(--bs-code-bg);
}

.markdown-body table tr:hover {
    background-color: var(--bs-hover-bg);
}

:root[data-bs-theme="light"] .markdown-body table {
    border-color: #cdc9c0;
}

:root[data-bs-theme="light"] .markdown-body table th,
:root[data-bs-theme="light"] .markdown-body table td {
    border-color: #cdc9c0;
}

:root[data-bs-theme="dark"] .markdown-body table {
    border-color: #2f3336;
}

:root[data-bs-theme="dark"] .markdown-body table th,
:root[data-bs-theme="dark"] .markdown-body table td {
    border-color: #2f3336;
}

/* Footer 스타일 */
.footer {
    background-color: var(--bs-card-bg);
    border-top: 1px solid var(--bs-border-color);
    margin-top: 4rem;
}

:root[data-bs-theme="light"] .footer {
    background-color: #f2efe8;
    border-top-color: #cdc9c0;
}

:root[data-bs-theme="dark"] .footer {
    background-color: #000000;
    border-top-color: #2f3336;
}

.footer h5,
.footer h6 {
    color: var(--bs-body-color);
    font-weight: 600;
}

.footer a {
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--bs-link-color) !important;
}

.footer .text-muted {
    color: var(--bs-text-muted) !important;
}

.footer hr {
    border-color: var(--bs-border-color);
    opacity: 0.5;
}

/* 모바일 드롭다운 조정 */
@media (max-width: 767.98px) {
    .nav-dropdown-toggle::after {
        display: none !important;
    }
    
    .nav-dropdown .dropdown-menu {
        position: fixed !important;
        top: 56px !important;
        right: 1rem !important;
        left: auto !important;
        transform: none !important;
    }
}

/* ============================================
   Floating Label (Modern Input Style)
   ============================================ */
.floating-label-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.floating-label-group input,
.floating-label-group textarea {
    width: 100%;
    padding: 1.25rem 0.75rem 0.5rem 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.5rem;
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    outline: none;
    transition: all 0.2s ease;
}

.floating-label-group label {
    position: absolute;
    left: 0.75rem;
    top: 0.4rem;
    font-size: 0.75rem;
    color: var(--bs-text-muted);
    pointer-events: none;
    transition: all 0.2s ease;
    background-color: transparent;
    padding: 0 0.25rem;
    z-index: 1;
    opacity: 0.8;
}

.floating-label-group input:focus,
.floating-label-group textarea:focus {
    border-color: var(--bs-link-color);
    box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.08);
    background-color: var(--bs-body-bg);
}

:root[data-bs-theme="light"] .floating-label-group input,
:root[data-bs-theme="light"] .floating-label-group textarea {
    background-color: #f9f7f2;
    border-color: #d8d4cb;
}

:root[data-bs-theme="light"] .floating-label-group input:focus,
:root[data-bs-theme="light"] .floating-label-group textarea:focus {
    border-color: #4a7c59;
    box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.08);
    background-color: #ffffff;
}

:root[data-bs-theme="dark"] .floating-label-group input,
:root[data-bs-theme="dark"] .floating-label-group textarea {
    background-color: #0a0a0a;
    border-color: #2f3336;
}

:root[data-bs-theme="dark"] .floating-label-group input:focus,
:root[data-bs-theme="dark"] .floating-label-group textarea:focus {
    background-color: #0a0a0a;
}

.floating-label-group input:focus + label,
.floating-label-group textarea:focus + label {
    color: var(--bs-link-color);
    opacity: 1;
}

:root[data-bs-theme="light"] .floating-label-group input:focus + label,
:root[data-bs-theme="light"] .floating-label-group textarea:focus + label {
    color: #4a7c59;
}

/* readonly 상태 */
.floating-label-group input:read-only,
.floating-label-group textarea:read-only {
    background-color: var(--bs-code-bg);
    cursor: default;
    opacity: 0.9;
}

:root[data-bs-theme="light"] .floating-label-group input:read-only,
:root[data-bs-theme="light"] .floating-label-group textarea:read-only {
    background-color: #ebe8e0;
    border-color: #d8d4cb;
}

:root[data-bs-theme="dark"] .floating-label-group input:read-only,
:root[data-bs-theme="dark"] .floating-label-group textarea:read-only {
    background-color: #16181c;
    border-color: #2f3336;
}