/* ==========================================
   Blog Page Styles
   ========================================== */

/* Blog Content Container */
.blog-content {
    padding: var(--spacing-3xl) 0;
    /* min-height: 60vh; */ /* REMOVED - was causing excessive vertical space */
}

/* Blog List Grid Layout */
.blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

/* Legacy support for old ID selector */
#blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-2xl);
    transition: all var(--transition-base);
}

.back-link:hover {
    color: var(--text-primary);
    transform: translateX(-4px);
}

/* ==========================================
   Blog Post Individual View
   ========================================== */
#blog-post {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

.blog-post {
    max-width: 100%;
}

.blog-post-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.blog-post-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-weight: 700;
}

.blog-post-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
}

.blog-date,
.blog-read-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Post Tags */
.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-lg);
}

.post-tag {
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    text-transform: lowercase;
}

.post-tag:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

/* Post TL;DR Collapsible Section */
.post-tldr-details {
    margin-top: var(--spacing-md);
    border: none;
}

.post-tldr-summary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: transparent;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    transition: all var(--transition-fast);
    list-style: none;
    border-radius: var(--radius-sm);
}

.post-tldr-summary::-webkit-details-marker {
    display: none;
}

.post-tldr-summary:hover {
    background-color: var(--bg-secondary);
}

.tldr-label {
    font-weight: 500;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tldr-icon {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-base);
    color: var(--text-tertiary);
}

.post-tldr-details[open] .tldr-icon {
    transform: rotate(180deg);
}

.post-tldr {
    margin: var(--spacing-sm) 0 0 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    border-left: 2px solid var(--border-color);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-tertiary);
}

.post-tldr em {
    font-style: italic;
    color: var(--text-tertiary);
}

/* Blog Post Content */
.blog-post-content {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.blog-post-content h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.blog-post-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.blog-post-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

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

.blog-post-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.blog-post-content em {
    font-style: italic;
}

.blog-post-content a {
    color: var(--text-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: all var(--transition-base);
}

.blog-post-content a:hover {
    text-decoration-thickness: 2px;
    color: var(--text-secondary);
}

.blog-post-content code {
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.blog-post-content pre {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--border-color);
    line-height: 1.6;
}

.blog-post-content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.875rem;
}

.blog-post-content ul,
.blog-post-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
    list-style-type: disc;
}

.blog-post-content li {
    display: list-item;
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

.blog-post-content blockquote {
    border-left: 4px solid var(--border-color);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-style: italic;
}

.blog-post-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: var(--spacing-xl) auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.blog-post-content img[alt] {
    /* Add subtle border if image has alt text */
    border: 1px solid var(--border-color);
}

/* ==========================================
   Utility Classes
   ========================================== */
.hidden {
    display: none !important;
}

.blog-loading {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-tertiary);
    font-size: 1rem;
}

.no-results {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ==========================================
   Filter Controls
   ========================================== */
/* Blog Filters - Match Projects Style */
.blog-filters {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md) 0;
    padding-bottom: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.filters-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filters-row > div:first-child {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
}

.search-box input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.search-box input:focus {
    outline: none;
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(10, 10, 10, 0.05);
}

.sort-box {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.sort-box label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.filter-select {
    min-width: 150px;
    padding: 0.4375rem 1.75rem 0.4375rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    appearance: none;
    font-weight: 500;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%23666' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.625rem center;
}

.filter-select:hover {
    border-color: var(--text-primary);
    background-color: var(--bg-primary);
}

.filter-select:focus {
    outline: none;
    border-color: var(--text-primary);
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.filter-tag {
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: capitalize;
}

.filter-tag:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.filter-tag.active {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.filter-tag-remove:hover {
    color: var(--text-primary);
    transform: scale(1.2);
}

/* ==========================================
   Blog List Cards
   ========================================== */
.blog-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
}

.blog-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, var(--text-primary), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    border-color: var(--text-primary);
}

.blog-card:hover::after {
    opacity: 1;
}

.blog-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-content {
    padding: var(--spacing-xl);
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 500;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
    font-weight: 700;
    color: var(--text-primary);
    transition: color var(--transition-base);
}

.blog-card:hover .blog-title {
    color: var(--text-secondary);
}

.blog-excerpt {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.blog-tag {
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: lowercase;
}

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

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 968px) {
    #blog-post {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }
    
    .blog-post-header h1 {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }
    
    .blog-post-content {
        font-size: 1rem;
    }
    
    .blog-post-content h2 {
        font-size: 1.5rem;
        margin-top: var(--spacing-2xl);
    }
    
    .blog-post-content h3 {
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .blog-content {
        padding: var(--spacing-lg);
    }
    
    .blog-title {
        font-size: 1.5rem;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-xs);
    }
    
    .filter-select {
        width: 100%;
        min-width: auto;
    }
    
    .blog-post-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    /* Fix mobile padding - remove outer container padding to prevent double padding */
    #blog-post {
        padding: 0;
        max-width: 100%;
    }
    
    #project-detail {
        padding: 0;
        max-width: 100%;
    }
    
    /* Match .container mobile padding for consistency */
    .blog-post-detail-wrapper,
    .project-detail-wrapper {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
}

@media (max-width: 568px) {
    /* Remove outer container padding completely on small mobile */
    #blog-post {
        padding: 0;
    }
    
    #project-detail {
        padding: 0;
    }
    
    .blog-content {
        padding: var(--spacing-md);
    }
    
    .blog-title {
        font-size: 1.375rem;
    }
    
    .blog-image {
        height: 180px;
    }
    
    .blog-post-header {
        margin-bottom: var(--spacing-2xl);
        padding-bottom: var(--spacing-md);
    }
    
    /* Reduce horizontal padding on mobile for better content width */
    .blog-post-detail-wrapper,
    .project-detail-wrapper {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
}

/* ==========================================
   Pagination Styles
   ========================================== */
.pagination-section {
    padding: var(--spacing-sm) 0 var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.pagination-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.pagination-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

#pagination-info-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.items-per-page {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.items-per-page label {
    color: var(--text-secondary);
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.pagination-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    min-width: 44px;
    justify-content: center;
}

.pagination-btn:hover:not(:disabled):not(.active) {
    background-color: var(--bg-primary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pagination-btn.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-primary);
    font-weight: 600;
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-btn.page-number {
    min-width: 40px;
    padding: var(--spacing-sm) var(--spacing-md);
}

.pagination-ellipsis {
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

@media (max-width: 768px) {
    .pagination-info {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .pagination-buttons {
        flex-wrap: wrap;
    }
    
    .pagination-btn {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        min-width: 38px;
    }
}

/* ==========================================
   Table of Contents (TOC) Sidebar
   ========================================== */

.blog-post-detail-wrapper,
.project-detail-wrapper {
    display: flex;
    gap: var(--spacing-2xl);
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-lg);
    position: relative;
    align-items: flex-start;
}

.blog-post-detail,
.project-detail-main {
    flex: 1;
    min-width: 0; /* Prevents flex item from overflowing */
    max-width: 800px;
}

/* TOC Sidebar - positioned to align with header bottom, sticky on scroll */
.toc-sidebar {
    position: sticky;
    width: 260px;
    flex-shrink: 0;
    align-self: flex-start;
    z-index: 100; /* Below navbar (z-index: 999) */
    /* top will be set dynamically by JS to align below navbar */
}

.toc-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0;
    max-height: calc(100vh - var(--spacing-3xl) * 2);
    overflow-y: auto;
}

/* Collapsible details element */
.toc-details {
    border: none;
}

.toc-details[open] .toc-chevron {
    transform: rotate(180deg);
}

.toc-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    list-style: none;
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

.toc-summary::-webkit-details-marker {
    display: none;
}

.toc-summary:hover {
    background-color: var(--bg-primary);
}

.toc-title {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin: 0;
}

.toc-chevron {
    transition: transform var(--transition-base);
    color: var(--text-tertiary);
    flex-shrink: 0;
    width: 14px;
    height: 14px;
}

.toc-list {
    list-style: none;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: 0;
}

.toc-item {
    margin-bottom: 0;
}

.toc-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8125rem;
    line-height: 1.4;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    border-left: 2px solid transparent;
    padding-left: var(--spacing-sm);
}

.toc-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border-left-color: var(--accent-color);
}

.toc-link.active {
    color: var(--accent-color);
    font-weight: 500;
    background-color: var(--bg-primary);
    border-left-color: var(--accent-color);
}

/* H2 headings with collapse arrow */
.toc-item.toc-h2 .toc-link {
    font-weight: 500;
}

.toc-item.toc-h2.has-children .toc-link {
    cursor: pointer;
}

.toc-item.toc-h2 .toc-expand-icon {
    width: 12px;
    height: 12px;
    transition: transform var(--transition-fast);
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.toc-item.toc-h2.expanded .toc-expand-icon {
    transform: rotate(90deg);
}

/* H3 nested children */
.toc-h3-list {
    list-style: none;
    margin: 0;
    padding-left: var(--spacing-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.toc-item.toc-h2.expanded .toc-h3-list {
    max-height: 500px;
}

.toc-item.toc-h3 .toc-link {
    font-size: 0.75rem;
    padding-left: var(--spacing-xs);
    font-weight: 400;
}

/* Custom scrollbar for TOC */
.toc-sidebar::-webkit-scrollbar {
    width: 6px;
}

.toc-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.toc-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.toc-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Responsive TOC */
@media (max-width: 1200px) {
    .toc-sidebar {
        display: none;
    }
    
    .blog-post-detail-wrapper,
    .project-detail-wrapper {
        justify-content: center;
    }
    
    .blog-post-detail,
    .project-detail-main {
        max-width: 800px;
        margin: 0 auto;
    }
}

@media (min-width: 1201px) {
    #blog-post {
        max-width: 100%;
        padding: 0;
    }
    
    #project-detail {
        max-width: 100%;
        padding: 0;
    }
}