/**
 * Kochim Post Content CSS - 마크다운 콘텐츠 전용 스타일
 * 리치 콘텐츠 지원: 표, 다이어그램, 코드 하이라이팅, 이미지 최적화
 * 
 * @author Kochim Portal Team
 * @version 1.0.0
 * @license MIT
 */

/* ==========================================================================
   기본 마크다운 콘텐츠 스타일링
   ========================================================================== */

.markdown-content {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.8;
    color: var(--text-primary, #374151);
    word-break: break-word;
    overflow-wrap: break-word;
}

.markdown-content * {
    max-width: 100%;
}

/* ==========================================================================
   제목 스타일링 (h1-h6)
   ========================================================================== */

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary, #111827);
    scroll-margin-top: 2rem; /* 앵커 링크 오프셋 */
}

.markdown-content h1 {
    font-size: 2.25rem;
    border-bottom: 3px solid var(--accent-primary, #3F51B5);
    padding-bottom: 0.5rem;
}

.markdown-content h2 {
    font-size: 1.875rem;
    border-bottom: 2px solid var(--border-color, #e5e7eb);
    padding-bottom: 0.5rem;
}

.markdown-content h3 {
    font-size: 1.5rem;
    position: relative;
}

.markdown-content h3:before {
    content: '';
    position: absolute;
    left: -1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 1.5rem;
    background: var(--accent-primary, #3F51B5);
    border-radius: 2px;
}

.markdown-content h4 {
    font-size: 1.25rem;
    color: var(--accent-primary, #3F51B5);
}

.markdown-content h5 {
    font-size: 1.125rem;
    font-weight: 600;
}

.markdown-content h6 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
}

/* ==========================================================================
   단락 및 텍스트 스타일링
   ========================================================================== */

.markdown-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.markdown-content p:last-child {
    margin-bottom: 0;
}

.markdown-content strong {
    font-weight: 700;
    color: var(--text-primary, #111827);
}

.markdown-content em {
    font-style: italic;
    color: var(--text-secondary, #6b7280);
}

.markdown-content mark {
    background-color: var(--highlight-bg, #fef3c7);
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    color: var(--text-primary, #111827);
}

/* ==========================================================================
   링크 스타일링
   ========================================================================== */

.markdown-content a {
    color: var(--accent-primary, #3F51B5);
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: all 0.2s ease;
}

.markdown-content a:hover {
    color: var(--accent-secondary, #283593);
    text-decoration-color: currentColor;
    text-underline-offset: 0.25rem;
}

.markdown-content a:focus {
    outline: 2px solid var(--accent-primary, #3F51B5);
    outline-offset: 2px;
    border-radius: 0.125rem;
}

/* ==========================================================================
   목록 스타일링 (ul, ol)
   ========================================================================== */

.markdown-content ul,
.markdown-content ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
    padding-left: 0;
}

.markdown-content ul {
    list-style-type: none;
}

.markdown-content ul > li {
    position: relative;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
}

.markdown-content ul > li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary, #3F51B5);
    font-weight: 700;
    font-size: 1.2em;
}

.markdown-content ol {
    list-style-type: decimal;
    list-style-position: outside;
}

.markdown-content ol > li {
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

.markdown-content ol > li::marker {
    color: var(--accent-primary, #3F51B5);
    font-weight: 700;
}

/* 중첩 목록 */
.markdown-content ul ul,
.markdown-content ol ol,
.markdown-content ul ol,
.markdown-content ol ul {
    margin-left: 1.5rem;
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   체크리스트 스타일링 (markdown-it-task-lists)
   ========================================================================== */

.markdown-content .task-list-item {
    list-style: none;
    margin-left: -2rem;
    padding-left: 0;
}

.markdown-content .task-list-item input[type="checkbox"] {
    margin-right: 0.75rem;
    margin-left: 0;
    transform: scale(1.2);
    accent-color: var(--accent-primary, #3F51B5);
    cursor: pointer;
}

.markdown-content .task-list-item input[type="checkbox"]:checked + * {
    text-decoration: line-through;
    color: var(--text-secondary, #6b7280);
}

/* ==========================================================================
   인용구 스타일링 (blockquote)
   ========================================================================== */

.markdown-content blockquote {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--bg-secondary, #f9fafb);
    border-left: 4px solid var(--accent-primary, #3F51B5);
    border-radius: 0 0.5rem 0.5rem 0;
    position: relative;
    font-style: italic;
}

.markdown-content blockquote:before {
    content: '"';
    position: absolute;
    top: -0.5rem;
    left: 1rem;
    font-size: 3rem;
    color: var(--accent-primary, #3F51B5);
    font-family: serif;
    line-height: 1;
}

.markdown-content blockquote p:last-child {
    margin-bottom: 0;
}

.markdown-content blockquote cite {
    display: block;
    text-align: right;
    margin-top: 1rem;
    font-style: normal;
    font-size: 0.875rem;
    color: var(--text-secondary, #6b7280);
}

.markdown-content blockquote cite:before {
    content: '— ';
}

/* ==========================================================================
   표 스타일링 (table)
   ========================================================================== */

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--bg-secondary, #ffffff);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    font-size: 0.9rem;
}

.markdown-content table th,
.markdown-content table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
    vertical-align: top;
}

.markdown-content table th {
    background: var(--accent-primary, #3F51B5);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    font-size: 0.8rem;
}

.markdown-content table tbody tr:hover {
    background: var(--bg-hover, #f3f4f6);
}

.markdown-content table tbody tr:last-child td {
    border-bottom: none;
}

/* 테이블 반응형 */
@media (max-width: 768px) {
    .markdown-content table {
        font-size: 0.8rem;
    }
    
    .markdown-content table th,
    .markdown-content table td {
        padding: 0.75rem 0.5rem;
    }
}

/* ==========================================================================
   코드 스타일링 (inline code, code blocks)
   ========================================================================== */

.markdown-content code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    font-weight: 500;
}

/* 인라인 코드 */
.markdown-content p code,
.markdown-content li code,
.markdown-content td code,
.markdown-content th code {
    background: var(--code-inline-bg, #f1f5f9);
    color: var(--code-inline-text, #475569);
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.85rem;
    border: 1px solid var(--border-color, #e2e8f0);
}

/* 코드 블록 */
.markdown-content pre {
    background: var(--code-bg, #1e293b);
    color: var(--code-text, #e2e8f0);
    border-radius: 0.75rem;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2rem 0;
    position: relative;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color, #334155);
}

.markdown-content pre:before {
    content: attr(data-language);
    position: absolute;
    top: 0.5rem;
    right: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted, #94a3b8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.markdown-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    border: none;
    font-size: 0.875rem;
    line-height: 1.6;
}

/* 코드 블록 스크롤바 스타일링 */
.markdown-content pre::-webkit-scrollbar {
    height: 0.5rem;
}

.markdown-content pre::-webkit-scrollbar-track {
    background: var(--code-scrollbar-track, #334155);
    border-radius: 0.25rem;
}

.markdown-content pre::-webkit-scrollbar-thumb {
    background: var(--code-scrollbar-thumb, #64748b);
    border-radius: 0.25rem;
}

.markdown-content pre::-webkit-scrollbar-thumb:hover {
    background: var(--code-scrollbar-thumb-hover, #94a3b8);
}

/* ==========================================================================
   Mermaid 다이어그램 스타일링
   ========================================================================== */

.markdown-content .mermaid {
    text-align: center;
    margin: 2rem 0;
    background: var(--bg-secondary, #ffffff);
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--border-color, #e5e7eb);
    box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

.markdown-content .mermaid svg {
    max-width: 100%;
    height: auto;
}

/* ==========================================================================
   이미지 스타일링 및 최적화
   ========================================================================== */

.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.75rem;
    margin: 2rem auto;
    display: block;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color, #e5e7eb);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.markdown-content img:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.1);
}

/* 이미지 로딩 상태 */
.markdown-content img[loading="lazy"] {
    background: var(--bg-secondary, #f9fafb);
    min-height: 200px;
}

/* 이미지 캡션 */
.markdown-content img + em {
    display: block;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary, #6b7280);
    margin-top: -1rem;
    margin-bottom: 2rem;
    font-style: italic;
}

/* ==========================================================================
   각주 스타일링 (markdown-it-footnote)
   ========================================================================== */

.markdown-content .footnote-ref {
    color: var(--accent-primary, #3F51B5);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    vertical-align: super;
    line-height: 0;
}

.markdown-content .footnote-ref:hover {
    color: var(--accent-secondary, #283593);
    text-decoration: underline;
}

.markdown-content .footnotes {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color, #e5e7eb);
    font-size: 0.875rem;
}

.markdown-content .footnotes ol {
    padding-left: 1rem;
}

.markdown-content .footnotes li {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.markdown-content .footnote-backref {
    color: var(--accent-primary, #3F51B5);
    text-decoration: none;
    margin-left: 0.5rem;
    font-size: 0.8rem;
}

/* ==========================================================================
   구분선 (hr)
   ========================================================================== */

.markdown-content hr {
    border: none;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--border-color, #e5e7eb), transparent);
    margin: 3rem 0;
}

/* ==========================================================================
   키보드 입력 스타일링 (kbd)
   ========================================================================== */

.markdown-content kbd {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: var(--bg-secondary, #f1f5f9);
    border: 1px solid var(--border-color, #cbd5e1);
    border-radius: 0.375rem;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05), inset 0 1px 0 0 rgba(255, 255, 255, 0.1);
    color: var(--text-primary, #475569);
    font-weight: 600;
}

/* ==========================================================================
   다크모드 지원
   ========================================================================== */

[data-theme="dark"] .markdown-content {
    color: var(--dark-text-primary, #e5e7eb);
}

[data-theme="dark"] .markdown-content h1,
[data-theme="dark"] .markdown-content h2,
[data-theme="dark"] .markdown-content h3,
[data-theme="dark"] .markdown-content h4,
[data-theme="dark"] .markdown-content h5,
[data-theme="dark"] .markdown-content h6 {
    color: var(--dark-text-primary, #f9fafb);
}

[data-theme="dark"] .markdown-content h2 {
    border-bottom-color: var(--dark-border-color, #374151);
}

[data-theme="dark"] .markdown-content blockquote {
    background: var(--dark-bg-secondary, #1f2937);
    border-left-color: var(--dark-accent-primary, #60a5fa);
}

[data-theme="dark"] .markdown-content table {
    background: var(--dark-bg-secondary, #1f2937);
}

[data-theme="dark"] .markdown-content table th {
    background: var(--dark-accent-primary, #3b82f6);
}

[data-theme="dark"] .markdown-content table td {
    border-bottom-color: var(--dark-border-color, #374151);
}

[data-theme="dark"] .markdown-content table tbody tr:hover {
    background: var(--dark-bg-hover, #374151);
}

[data-theme="dark"] .markdown-content p code,
[data-theme="dark"] .markdown-content li code,
[data-theme="dark"] .markdown-content td code,
[data-theme="dark"] .markdown-content th code {
    background: var(--dark-code-inline-bg, #374151);
    color: var(--dark-code-inline-text, #e5e7eb);
    border-color: var(--dark-border-color, #4b5563);
}

[data-theme="dark"] .markdown-content pre {
    background: var(--dark-code-bg, #0f172a);
    border-color: var(--dark-border-color, #1e293b);
}

[data-theme="dark"] .markdown-content .mermaid {
    background: var(--dark-bg-secondary, #1f2937);
    border-color: var(--dark-border-color, #374151);
}

[data-theme="dark"] .markdown-content img {
    border-color: var(--dark-border-color, #374151);
}

[data-theme="dark"] .markdown-content .footnotes {
    border-top-color: var(--dark-border-color, #374151);
}

[data-theme="dark"] .markdown-content kbd {
    background: var(--dark-bg-secondary, #374151);
    border-color: var(--dark-border-color, #4b5563);
    color: var(--dark-text-primary, #e5e7eb);
}

/* ==========================================================================
   반응형 디자인
   ========================================================================== */

@media (max-width: 768px) {
    .markdown-content {
        font-size: 0.95rem;
        line-height: 1.7;
    }
    
    .markdown-content h1 {
        font-size: 1.875rem;
    }
    
    .markdown-content h2 {
        font-size: 1.5rem;
    }
    
    .markdown-content h3 {
        font-size: 1.25rem;
    }
    
    .markdown-content ul,
    .markdown-content ol {
        margin-left: 1.5rem;
    }
    
    .markdown-content blockquote {
        padding: 1rem;
        margin: 1.5rem 0;
    }
    
    .markdown-content pre {
        padding: 1rem;
        font-size: 0.8rem;
        margin: 1.5rem 0;
        border-radius: 0.5rem;
    }
    
    .markdown-content table {
        font-size: 0.8rem;
    }
    
    .markdown-content .mermaid {
        padding: 1rem;
        margin: 1.5rem 0;
    }
    
    .markdown-content img {
        margin: 1.5rem auto;
        border-radius: 0.5rem;
    }
}

@media (max-width: 480px) {
    .markdown-content {
        font-size: 0.9rem;
    }
    
    .markdown-content h1 {
        font-size: 1.5rem;
    }
    
    .markdown-content h2 {
        font-size: 1.25rem;
    }
    
    .markdown-content h3 {
        font-size: 1.125rem;
    }
    
    .markdown-content ul,
    .markdown-content ol {
        margin-left: 1rem;
    }
    
    .markdown-content blockquote {
        padding: 0.75rem;
    }
    
    .markdown-content pre {
        padding: 0.75rem;
        font-size: 0.75rem;
    }
    
    .markdown-content table th,
    .markdown-content table td {
        padding: 0.5rem 0.25rem;
    }
}

/* ==========================================================================
   접근성 개선
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .markdown-content *,
    .markdown-content *:before,
    .markdown-content *:after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 고대비 모드 지원 */
@media (prefers-contrast: high) {
    .markdown-content {
        filter: contrast(1.2);
    }
    
    .markdown-content a {
        text-decoration: underline;
        text-decoration-thickness: 2px;
    }
    
    .markdown-content pre {
        border: 2px solid var(--border-color, #334155);
    }
}

/* ==========================================================================
   인쇄 스타일
   ========================================================================== */

@media print {
    .markdown-content {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }
    
    .markdown-content h1,
    .markdown-content h2,
    .markdown-content h3,
    .markdown-content h4,
    .markdown-content h5,
    .markdown-content h6 {
        page-break-after: avoid;
        color: #000;
    }
    
    .markdown-content img {
        max-width: 100%;
        page-break-inside: avoid;
    }
    
    .markdown-content pre {
        background: #f5f5f5;
        color: #000;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
    
    .markdown-content table {
        page-break-inside: avoid;
    }
    
    .markdown-content blockquote {
        background: #f9f9f9;
        border-left: 4px solid #333;
        page-break-inside: avoid;
    }
}

/* ==========================================================================
   사용자 정의 스타일 훅
   ========================================================================== */

.markdown-content .custom-container {
    margin: 2rem 0;
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color, #e5e7eb);
}

.markdown-content .custom-container.info {
    background: #eff6ff;
    border-color: #3b82f6;
    color: #1e40af;
}

.markdown-content .custom-container.warning {
    background: #fffbeb;
    border-color: #f59e0b;
    color: #92400e;
}

.markdown-content .custom-container.danger {
    background: #fef2f2;
    border-color: #ef4444;
    color: #dc2626;
}

.markdown-content .custom-container.success {
    background: #f0fdf4;
    border-color: #22c55e;
    color: #15803d;
}

/* 다크모드용 커스텀 컨테이너 */
[data-theme="dark"] .markdown-content .custom-container.info {
    background: #1e3a8a;
    border-color: #60a5fa;
    color: #93c5fd;
}

[data-theme="dark"] .markdown-content .custom-container.warning {
    background: #92400e;
    border-color: #fbbf24;
    color: #fcd34d;
}

[data-theme="dark"] .markdown-content .custom-container.danger {
    background: #991b1b;
    border-color: #f87171;
    color: #fca5a5;
}

[data-theme="dark"] .markdown-content .custom-container.success {
    background: #14532d;
    border-color: #4ade80;
    color: #86efac;
}