/* PENGSU Blog Skin - Modern Minimal Design */

:root {
    --blog-primary: #6366f1;
    --blog-primary-light: #818cf8;
    --blog-primary-dark: #4f46e5;
    --blog-accent: #f59e0b;
    --blog-bg: #fafafa;
    --blog-card-bg: #ffffff;
    --blog-text: #111827;
    --blog-text-secondary: #4b5563;
    --blog-text-muted: #9ca3af;
    --blog-border: #e5e7eb;
    --blog-border-light: #f3f4f6;
    --blog-success: #10b981;
    --blog-danger: #ef4444;
    --blog-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --blog-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --blog-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --blog-radius: 12px;
    --blog-radius-sm: 8px;
    --blog-radius-xs: 4px;
    --blog-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans KR', sans-serif;
}

/* Reset & Base */
.blog-container {
    max-width: 768px;
    margin: 0 auto;
    padding: 32px 20px;
    font-family: var(--blog-font);
}

.blog-container * {
    box-sizing: border-box;
}

/* ========================================
   Blog Post Detail Page
   ======================================== */

.blog-post {
    background: var(--blog-card-bg);
    border-radius: var(--blog-radius);
    box-shadow: var(--blog-shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

/* Post Header - Clean & Minimal */
.blog-post-header {
    padding: 48px 40px 40px;
    border-bottom: 1px solid var(--blog-border-light);
    background: #e9eeff;
}

@media (max-width: 640px) {
    .blog-post-header {
        padding: 32px 20px 28px;
    }
}

.blog-post-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--blog-text);
    line-height: 1.3;
    margin: 0 0 24px 0;
    letter-spacing: -0.02em;
}

@media (max-width: 640px) {
    .blog-post-title {
        font-size: 1.5rem;
    }
}

.blog-post-title i {
    color: var(--blog-text-muted);
    font-size: 0.8em;
    margin-right: 8px;
}

.blog-post-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    color: var(--blog-text-muted);
}

.blog-post-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.blog-post-meta-item i {
    font-size: 14px;
    opacity: 0.7;
}

/* Category Badge */
.blog-card-category {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-primary-light) 100%);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* Post Content */
.blog-post-content {
    padding: 40px;
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--blog-text-secondary);
}

@media (max-width: 640px) {
    .blog-post-content {
        padding: 24px 20px;
        font-size: 1rem;
    }
}

.blog-post-content p {
    margin: 0 0 1.5em 0;
}

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

/* Headings in Content */
.blog-post-content h2 {
    background: linear-gradient(to right, rgb(40, 167, 69), rgb(30, 126, 52));
    border-radius: 10px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    color: white;
    font-size: 25px;
    font-weight: 700;
    margin: 30px 0 15px;
    padding: 10px 25px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.blog-post-content h2 * {
    color: inherit;
}

.blog-post-content h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--blog-text);
    margin: 2em 0 0.75em 0;
}

.blog-post-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--blog-text);
    margin: 1.5em 0 0.5em 0;
}

/* Alert Box Styles */
.blog-post-content .alert-box {
    border-radius: 8px;
    padding: 15px 20px;
    margin: 1.5em 0;
    text-align: center;
    font-weight: 500;
}

.blog-post-content .alert-box strong {
    color: inherit;
}

/* 노란색 정보 알림 */
.blog-post-content .alert-info {
    background-color: #fffde7;
    border: 1px solid #fbc02d;
    color: #5d4037;
}

/* 빨간색 경고 알림 */
.blog-post-content .alert-danger {
    background-color: #ffebee;
    border: 1px solid #ef5350;
    color: #c62828;
}

/* 초록색 성공 알림 */
.blog-post-content .alert-success {
    background-color: #e8f5e9;
    border: 1px solid #66bb6a;
    color: #2e7d32;
}

/* 파란색 알림 */
.blog-post-content .alert-primary {
    background-color: #e3f2fd;
    border: 1px solid #42a5f5;
    color: #1565c0;
}

/* Blockquote - Modern Style */
.blog-post-content blockquote,
.blog-post-content .editorjs-quote {
    position: relative;
    margin: 2em 0;
    padding: 24px 28px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--blog-radius);
    border: none;
    border-left: 4px solid var(--blog-primary);
}

.blog-post-content blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--blog-primary);
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
}

.blog-post-content blockquote p {
    position: relative;
    font-size: 1.0625rem;
    font-style: italic;
    color: var(--blog-text-secondary);
    margin: 0;
}

.blog-post-content blockquote cite {
    display: block;
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--blog-text-muted);
    font-style: normal;
}

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

/* Code Blocks */
.blog-post-content pre {
    margin: 2em 0;
    padding: 20px 24px;
    background: #1e293b;
    color: #e2e8f0;
    border-radius: var(--blog-radius);
    overflow-x: auto;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 1.8rem;
    line-height: 1.7;
}

.blog-post-content code {
    padding: 2px 8px;
    background: #f1f5f9;
    color: var(--blog-primary-dark);
    border-radius: var(--blog-radius-xs);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 0.875em;
}

.blog-post-content pre code {
    padding: 0;
    background: transparent;
    color: inherit;
}

/* Lists */
.blog-post-content ul,
.blog-post-content ol {
    margin: 1.5em 0;
    padding-left: 1.5em;
}

.blog-post-content li {
    margin-bottom: 0.5em;
}

/* Images */
.blog-post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--blog-radius);
    margin: 2em 0;
}

/* Links */
.blog-post-content a {
    color: var(--blog-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s;
}

.blog-post-content a:hover {
    color: var(--blog-primary-dark);
}

/* ========================================
   Like/Dislike Section
   ======================================== */

.blog-reactions {
    display: flex;
    justify-content: center;
    gap: 24px;
    padding: 32px;
    margin: 0 40px 40px;
    background: var(--blog-bg);
    border-radius: var(--blog-radius);
}

@media (max-width: 640px) {
    .blog-reactions {
        margin: 0 20px 24px;
        padding: 24px;
        gap: 16px;
    }
}

.blog-reaction-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: var(--blog-card-bg);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.blog-reaction-btn:hover {
    border-color: var(--blog-primary);
    transform: translateY(-2px);
    box-shadow: var(--blog-shadow);
}

.blog-reaction-btn i {
    font-size: 28px;
    transition: transform 0.2s;
}

.blog-reaction-btn:hover i {
    transform: scale(1.1);
}

.blog-reaction-btn.like i {
    color: var(--blog-primary);
}

.blog-reaction-btn.dislike i {
    color: var(--blog-text-muted);
}

.blog-reaction-btn span {
    font-size: 16px;
    font-weight: 600;
    color: var(--blog-text);
}

/* ========================================
   Tags Section
   ======================================== */

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding: 0 40px 40px;
}

@media (max-width: 640px) {
    .blog-tags {
        padding: 0 20px 24px;
    }
}

.blog-tags > i {
    color: var(--blog-text-muted);
    font-size: 18px;
}

.blog-tag {
    display: inline-block;
    padding: 8px 16px;
    background: var(--blog-bg);
    color: var(--blog-text-secondary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.blog-tag:hover {
    background: var(--blog-primary);
    color: white;
    transform: translateY(-1px);
}

/* ========================================
   Navigation Buttons
   ======================================== */

.blog-btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.blog-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: var(--blog-radius-sm);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.blog-btn-primary {
    background: var(--blog-primary);
    color: white;
}

.blog-btn-primary:hover {
    background: var(--blog-primary-dark);
    color: white;
}

.blog-btn-secondary {
    background: var(--blog-card-bg);
    color: var(--blog-text-secondary);
    border: 1px solid var(--blog-border);
}

.blog-btn-secondary:hover {
    background: var(--blog-bg);
    border-color: var(--blog-text-muted);
    color: var(--blog-text);
}

.blog-btn i {
    font-size: 14px;
}

/* Admin Manage Layer - 관리자 드롭다운 메뉴 */
.btn-admin-manage-layer {
    display: none;
    position: absolute;
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius-sm);
    box-shadow: var(--blog-shadow-lg);
    z-index: 99999;
    min-width: 160px;
    overflow: hidden;
}

.btn-admin-manage-layer .item {
    padding: 10px 16px;
    font-size: 13px;
    color: var(--blog-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.15s;
    white-space: nowrap;
}

.btn-admin-manage-layer .item:hover {
    background: var(--blog-bg);
    color: var(--blog-text);
}

.btn-admin-manage-layer .item i {
    font-size: 14px;
    width: 16px;
    text-align: center;
}

/* ========================================
   Comments Section
   ======================================== */

.blog-comments {
    background: var(--blog-card-bg);
    border-radius: var(--blog-radius);
    box-shadow: var(--blog-shadow);
    padding: 32px 40px;
}

@media (max-width: 640px) {
    .blog-comments {
        padding: 24px 20px;
        border-radius: 0;
    }
}

.blog-comments-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blog-text);
    margin: 0 0 24px 0;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--blog-border-light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.blog-comments-title i {
    color: var(--blog-primary);
}

/* Comment Item */
.blog-comment {
    padding: 20px 0;
    border-bottom: 1px solid var(--blog-border-light);
}

.blog-comment:last-child {
    border-bottom: none;
}

.blog-comment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.blog-comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.blog-comment-info {
    flex: 1;
}

.blog-comment-author {
    font-weight: 600;
    color: var(--blog-text);
    font-size: 14px;
}

.blog-comment-date {
    font-size: 12px;
    color: var(--blog-text-muted);
    margin-top: 2px;
}

.blog-comment-content {
    font-size: 15px;
    line-height: 1.7;
    color: var(--blog-text-secondary);
    padding-left: 52px;
}

/* Comment Write Form */
.blog-comment-form {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--blog-border-light);
}

.blog-comment-textarea {
    width: 100%;
    min-height: 120px;
    padding: 16px;
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius);
    font-size: 15px;
    font-family: var(--blog-font);
    resize: vertical;
    transition: border-color 0.2s;
}

.blog-comment-textarea:focus {
    outline: none;
    border-color: var(--blog-primary);
}

/* jQuery Validate Error Styles */
.blog-comment-form label.error,
.blog-comments label.error {
    display: block;
    color: #ef4444;
    font-size: 13px;
    margin-top: 6px;
    padding-left: 4px;
}

.blog-comment-form input.error,
.blog-comment-form textarea.error {
    border-color: #ef4444 !important;
}

.blog-comment-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 12px;
}

/* ========================================
   Attachments & Links Box
   ======================================== */

.blog-attachments {
    margin: 0 40px 32px;
    padding: 20px 24px;
    background: var(--blog-bg);
    border-radius: var(--blog-radius);
}

@media (max-width: 640px) {
    .blog-attachments {
        margin: 0 20px 24px;
        padding: 16px 20px;
    }
}

.blog-attachments-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--blog-text);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-attachments-title i {
    color: var(--blog-primary);
}

.blog-attachment-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    color: var(--blog-text-secondary);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.2s;
}

.blog-attachment-item:hover {
    color: var(--blog-primary);
}

.blog-attachment-item i {
    font-size: 16px;
}

/* ========================================
   Blog List Page
   ======================================== */

.blog-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blog-card {
    background: var(--blog-card-bg);
    border-radius: var(--blog-radius);
    box-shadow: var(--blog-shadow-sm);
    border: 1px solid var(--blog-border-light);
    overflow: hidden;
    transition: all 0.2s;
}

.blog-card:hover {
    box-shadow: var(--blog-shadow);
    border-color: var(--blog-border);
}

/* 썸네일이 있는 카드 */
.blog-card.has-thumbnail {
    display: flex;
    flex-direction: row;
}

.blog-card-thumbnail {
    flex-shrink: 0;
    width: 200px;
    height: 150px;
    overflow: hidden;
}

.blog-card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.blog-card-thumbnail:hover img {
    transform: scale(1.05);
}

.blog-card.has-thumbnail .blog-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (max-width: 576px) {
    .blog-card.has-thumbnail {
        flex-direction: column;
    }

    .blog-card-thumbnail {
        width: 100%;
        height: 180px;
    }
}

.blog-card-body {
    padding: 24px;
}

.blog-card-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--blog-text);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.blog-card-title a {
    color: inherit;
    text-decoration: none;
}

.blog-card-title a:hover {
    color: var(--blog-primary);
}

.blog-card-excerpt {
    font-size: 14px;
    color: var(--blog-text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--blog-text-muted);
}

.blog-card-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ========================================
   Search & Toolbar
   ======================================== */

.blog-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--blog-card-bg);
    border-radius: var(--blog-radius);
    box-shadow: var(--blog-shadow-sm);
    border: 1px solid var(--blog-border-light);
}

.blog-search {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    max-width: 360px;
}

.blog-search-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius-sm);
    font-size: 14px;
    transition: border-color 0.2s;
}

.blog-search-input:focus {
    outline: none;
    border-color: var(--blog-primary);
}

.blog-search-btn {
    padding: 10px 16px;
    background: var(--blog-primary);
    color: white;
    border: none;
    border-radius: var(--blog-radius-sm);
    cursor: pointer;
    transition: background 0.2s;
}

.blog-search-btn:hover {
    background: var(--blog-primary-dark);
}

/* ========================================
   Pagination
   ======================================== */

.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 32px;
}

.blog-pagination a,
.blog-pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: var(--blog-radius-sm);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.blog-pagination a {
    background: var(--blog-card-bg);
    color: var(--blog-text-secondary);
    border: 1px solid var(--blog-border);
}

.blog-pagination a:hover {
    background: var(--blog-bg);
    border-color: var(--blog-primary);
    color: var(--blog-primary);
}

.blog-pagination .active {
    background: var(--blog-primary);
    color: white;
    border: none;
}

/* ========================================
   Badges
   ======================================== */

.blog-badge {
    display: inline-block;
    padding: 8px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.blog-badge-notice {
    background: var(--blog-primary);
    color: white;
}

.blog-badge-hot {
    background: var(--blog-danger);
    color: white;
}

.blog-badge-new {
    background: var(--blog-success);
    color: white;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 640px) {
    .blog-container {
        padding: 16px 0;
    }

    .blog-post {
        border-radius: 0;
    }

    .blog-toolbar {
        flex-direction: column;
        border-radius: 0;
    }

    .blog-search {
        max-width: none;
        width: 100%;
    }

    .blog-btn-group {
        width: 100%;
    }

    .blog-btn {
        flex: 1;
        justify-content: center;
    }

    .blog-reactions {
        flex-direction: column;
        gap: 12px;
    }

    .blog-reaction-btn {
        flex-direction: row;
        padding: 12px 24px;
    }
}

/* ========================================
   Animation
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.blog-post {
    animation: fadeIn 0.3s ease-out;
}

/* ========================================
   Write Form Improvements
   ======================================== */

.board .form-horizontal.box-table {
    background: var(--blog-card-bg);
    border-radius: var(--blog-radius);
    padding: 32px;
    box-shadow: var(--blog-shadow);
}

.board .form-group {
    margin-bottom: 20px;
}

.board .form-control {
    border-radius: var(--blog-radius-sm);
    border-color: var(--blog-border);
    padding: 10px 14px;
    font-size: 15px;
}

.board .form-control:focus {
    border-color: var(--blog-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.board h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--blog-text);
    margin-bottom: 24px;
}

/* ========================================
   Post Navigation (이전글/다음글)
   ======================================== */

.blog-post-nav {
    display: flex;
    flex-direction: row;
    gap: 0;
    margin-bottom: 24px;
    border-radius: var(--blog-radius);
    overflow: hidden;
}

.blog-post-nav-item {
    display: flex;
    align-items: center;
    width: 50%;
    padding: 24px 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.blog-post-nav-item.prev {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    justify-content: flex-start;
}

.blog-post-nav-item.next {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    justify-content: flex-end;
}

.blog-post-nav-item:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
    z-index: 1;
}

.blog-post-nav-item .nav-arrow {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.7);
    flex-shrink: 0;
}

.blog-post-nav-item.prev .nav-arrow {
    margin-right: 16px;
}

.blog-post-nav-item.next .nav-arrow {
    margin-left: 16px;
}

.blog-post-nav-item .nav-content {
    flex: 1;
    min-width: 0;
}

.blog-post-nav-item .nav-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 6px;
}

.blog-post-nav-item .nav-title {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: #ffffff;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.blog-post-nav-item.prev .nav-content {
    text-align: left;
}

.blog-post-nav-item.next .nav-content {
    text-align: right;
}

/* 하나만 있을 때 100% */
.blog-post-nav-item:only-child {
    width: 100%;
}

@media (max-width: 640px) {
    .blog-post-nav {
        flex-direction: column;
    }

    .blog-post-nav-item {
        width: 100%;
        padding: 20px 16px;
    }

    .blog-post-nav-item.next {
        justify-content: flex-start;
    }

    .blog-post-nav-item.next .nav-content {
        text-align: left;
    }

    .blog-post-nav-item.next .nav-arrow {
        margin-left: 0;
        margin-right: 16px;
        order: -1;
    }
}