/* --------------------------------------------------------
   BLOG HOMEPAGE & POST LAYOUT STYLES
-------------------------------------------------------- */
body {
  background-color: var(--color-bg-canvas) !important;
}

.blog-page-bg {
  color: var(--color-text-on-dark);
  padding: var(--space-8) 0 var(--space-14);
  min-height: 100vh;
  font-family: var(--font-sans);
}

.blog-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Header Section */
.blog-title-header {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-8);
  margin-top: 80px;
  /* Solid margin to top */
  margin-bottom: var(--space-10);
  align-items: center;
}

.blog-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-heading);
}

.blog-search-wrapper {
  width: 100%;
  margin-left: auto;
}

.blog-brand-logo {
  display: inline-flex;
  align-items: center;
  width: 56px;
  height: 56px;
  color: var(--color-text-heading);
}

.blog-brand-logo svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.blog-main-title {
  font-size: 4.5rem;
  font-weight: 800;
  font-family: var(--font-sans);
  color: var(--color-text-heading);
  margin: 0;
  line-height: 1;
  letter-spacing: -0.02em;
}

.blog-main-title span {
  color: var(--accent-teal-400);
}

/* Featured Article (Top main element) */
.featured-post-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-canvas-raised);
  border: 1px solid var(--color-border-dark);
  padding: var(--space-10) var(--space-8);
  min-height: 380px;
  margin-bottom: var(--space-12);
  border-radius: 0 !important;
}

.featured-post-container .hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100% !important;
  height: 100% !important;
  z-index: 1;
  pointer-events: none;
}

.featured-info {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.featured-eyebrow-container {
  margin-bottom: var(--space-4);
}

.featured-eyebrow {
  display: inline-block;
  border: 1px solid var(--accent-blue-400);
  background-color: rgba(13, 17, 34, 0.6);
  color: var(--accent-blue-400);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 0 !important;
}

.featured-title {
  font-family: 'Montserrat', var(--font-sans);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text-on-dark);
  margin-top: 0;
  margin-bottom: var(--space-6);
  line-height: 1.2;
}

.featured-title span {
  color: var(--accent-teal-400);
}

.featured-desc-card {
  background: var(--color-border-dark);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-dark);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
  border-radius: 0 !important;
  width: 70%;
  max-width: 100%;
}

.featured-desc-line {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-on-dark);
}

.featured-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.featured-btn {
  background-color: var(--accent-blue-400);
  color: var(--color-text-on-dark) !important;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 !important;
  transition: background-color 0.15s ease;
  border: none;
  display: inline-block;
}

.featured-btn:hover {
  background-color: var(--accent-blue-600);
}

.featured-metadata {
  color: var(--color-text-on-dark-muted);
  font-size: var(--text-small);
}

/* Custom Orange Arrow Button */
.orange-arrow-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background-color: var(--accent-amber-400);
  /* Amber/Orange accent */
  color: var(--color-bg-surface);
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-size: 22px;
  font-weight: bold;
  transition: transform 0.2s, background-color 0.2s;
}

.orange-arrow-btn:hover {
  background-color: var(--accent-amber-600);
  transform: translate(2px, -2px);
}

/* Section Divider with pagination numbers like "2 / 6" */
.section-divider-row {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-16);
  margin-bottom: var(--space-16);
  position: relative;
}

.section-divider-row::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--color-border-dark);
  z-index: 1;
}

.section-divider-text {
  background-color: var(--color-bg-canvas);
  padding: 0 var(--space-4);
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-text-on-dark-muted);
  font-size: 1.5rem;
  z-index: 2;
}

/* Articles Section Grid */
.grid-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.grid-section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text-on-dark);
}

.grid-filter-chips {
  display: flex;
  gap: 8px;
  align-items: center;
}

.filter-chip {
  padding: 6px 16px;
  background-color: var(--color-bg-surface-dark);
  border: 1px solid var(--color-border-dark);
  color: var(--color-text-on-dark-muted);
  font-size: var(--text-small);
  font-weight: 500;
  cursor: pointer;
  border-radius: 0 !important;
  transition: all 0.2s;
}

.filter-chip:hover,
.filter-chip.active {
  background-color: var(--color-bg-surface);
  color: var(--color-text-heading);
  border-color: var(--color-bg-surface);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.blog-card {
  background-color: var(--color-bg-surface-dark);
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--color-border-dark);
  border-radius: 0 !important;
  transition: transform 0.2s, box-shadow 0.2s;
}

.blog-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
}

.blog-card-image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background-color: var(--color-navy-900);
}

.blog-card-image-fallback {
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--color-navy-800), var(--accent-blue-800));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-on-dark);
}

.blog-card-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card-author {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-on-dark-muted);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.blog-card-avatar {
  width: 24px;
  height: 24px;
  background-color: var(--accent-blue-400);
  color: var(--color-bg-surface);
  border-radius: 0 !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: bold;
}

.blog-card-title {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
  margin-top: 0;
  margin-bottom: var(--space-2);
}

.blog-card-title a {
  color: var(--color-text-on-dark);
  text-decoration: none;
  transition: color 0.15s;
}

.blog-card-title a:hover {
  color: var(--accent-blue-400);
}

.blog-card-tag {
  font-size: var(--text-label);
  color: var(--accent-blue-400);
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* Blog card tag color variants */
.blog-card-tag.tag-blue {
  color: var(--accent-blue-400);
}

.blog-card-tag.tag-teal {
  color: var(--accent-teal-400);
}

.blog-card-tag.tag-violet {
  color: var(--accent-violet-400);
}

/* Blog card accent top border variants */
.blog-card.card-accent-blue {
  border-top: 3px solid var(--accent-blue-400);
}

.blog-card.card-accent-teal {
  border-top: 3px solid var(--accent-teal-400);
}

.blog-card.card-accent-violet {
  border-top: 3px solid var(--accent-violet-400);
}

/* Blog card title hover color variants */
.blog-card.card-accent-blue .blog-card-title a:hover {
  color: var(--accent-blue-400);
}

.blog-card.card-accent-teal .blog-card-title a:hover {
  color: var(--accent-teal-400);
}

.blog-card.card-accent-violet .blog-card-title a:hover {
  color: var(--accent-violet-400);
}

/* Blog card avatar color variants */
.blog-card-avatar.avatar-blue {
  background-color: var(--accent-blue-400);
}

.blog-card-avatar.avatar-teal {
  background-color: var(--accent-teal-400);
}

.blog-card-avatar.avatar-violet {
  background-color: var(--accent-violet-400);
}

.blog-card-desc {
  font-size: var(--text-small);
  line-height: 1.5;
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--space-3);
  margin-top: auto;
}

.blog-card-stats {
  font-size: var(--text-label);
  color: var(--color-text-on-dark-faint);
  display: flex;
  gap: 12px;
}

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

.orange-arrow-btn.small {
  width: 36px;
  height: 36px;
  font-size: 16px;
}

/* Pagination Nav */
.pagination-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.btn-pagination {
  padding: 8px 16px;
  background-color: var(--color-bg-surface-dark) !important;
  border: 1px solid var(--color-border-dark) !important;
  color: var(--color-text-on-dark) !important;
  font-size: var(--text-small);
  font-weight: 500;
  border-radius: 0 !important;
  transition: all 0.2s;
}

.btn-pagination:hover {
  background-color: var(--color-bg-surface) !important;
  color: var(--color-text-heading) !important;
  border-color: var(--color-bg-surface) !important;
}

.pagination-info {
  font-size: var(--text-small);
  color: var(--color-text-on-dark-muted);
}

.blog-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--space-6);
  margin-top: var(--space-12);
}

/* Placeholder card styling */
.placeholder-card {
  border: 1px dashed var(--color-border-dark) !important;
  background-color: transparent !important;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.placeholder-card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-align: center;
}

.placeholder-plus {
  font-size: 3rem;
  font-weight: 300;
  color: var(--accent-blue-400);
  line-height: 1;
}

.placeholder-text {
  font-size: var(--text-small);
  color: var(--color-text-on-dark-muted);
  font-weight: 600;
}

/* --------------------------------------------------------
   INDIVIDUAL BLOG POST LAYOUT
-------------------------------------------------------- */
.blog-post-page {
  color: var(--color-text-on-dark);
  padding: var(--space-8) 0 var(--space-16);
  min-height: 100vh;
  font-family: var(--font-sans);
}

.blog-post-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Header area */
.blog-post-header {
  margin-bottom: var(--space-8);
}

.blog-post-meta {
  font-size: var(--text-mono);
  color: var(--color-text-on-dark-faint);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: 8px;
}

.blog-post-meta .author {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

.blog-post-main-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.25;
  color: #FFFFFF;
  margin: 0 0 var(--space-4) 0;
  font-family: var(--font-sans);
}

.blog-post-desc {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.68);
  margin-bottom: var(--space-6);
}

/* Featured Image */
.blog-post-featured-image {
  width: 100%;
  margin-bottom: var(--space-8);
}

.blog-post-image-container {
  width: 100%;
  aspect-ratio: 21/9;
  overflow: hidden;
  background-color: var(--color-navy-800);
}

.blog-post-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-post-image-meta {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-mono);
  color: var(--color-text-on-dark-faint);
  margin-top: var(--space-2);
}

.blog-post-image-caption {
  font-style: italic;
}

.blog-post-image-credit a {
  color: inherit;
  text-decoration: underline;
}

/* Two Column Layout */
.blog-post-body-container {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-8);
  align-items: start;
}

/* Article Content */
.blog-post-article-content {
  background-color: var(--color-bg-canvas-raised);
  padding: var(--space-8);
  border: 1px solid var(--color-border-dark);
  line-height: 1.8;
  font-size: 16px;
  min-width: 0;
  color: rgba(255, 255, 255, 0.68);
}

.blog-post-article-content p {
  margin-bottom: var(--space-4);
}

.blog-post-article-content h2 {
  font-size: 24px;
  font-weight: 800;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: rgba(255, 255, 255, 0.95);
  font-family: var(--font-sans);
}

.blog-post-article-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
  color: rgba(255, 255, 255, 0.92);
}

.blog-post-article-content table {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-collapse: collapse;
  margin: var(--space-6) 0;
}

.blog-post-article-content pre {
  overflow-x: auto;
  max-width: 100%;
  padding: var(--space-4);
  padding-top: var(--space-8);
  background: var(--color-navy-900) !important;
  border: 1px solid var(--color-border-dark);
  margin: var(--space-4) 0;
  position: relative;
}

.blog-post-article-content code {
  font-family: var(--font-mono);
  font-size: var(--text-mono);
}

.blog-post-article-content pre code {
  background: transparent !important;
  color: rgba(255, 255, 255, 0.82);
  display: block;
  line-height: 1.6;
  font-size: 0.85rem;
}

/* Prism.js theme overrides for blog context */
.blog-post-article-content pre[class*="language-"] {
  background: var(--color-navy-900) !important;
  border-radius: 0 !important;
  padding: var(--space-4);
  padding-top: var(--space-8);
}

.blog-post-article-content code[class*="language-"] {
  background: transparent !important;
  font-family: var(--font-mono);
  text-shadow: none !important;
}

.blog-post-article-content th,
.blog-post-article-content td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border-dark);
  text-align: left;
  font-size: var(--text-mono);
  color: rgba(255, 255, 255, 0.68);
}

.blog-post-article-content th {
  background-color: var(--color-bg-surface-dark);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

.blog-post-article-content blockquote {
  border-left: 4px solid var(--accent-amber-400);
  padding-left: var(--space-4);
  margin: var(--space-6) 0;
  font-style: italic;
  color: rgba(255, 255, 255, 0.60);
}

/* Sidebar Navigation */
.blog-post-sidebar {
  position: sticky;
  top: var(--space-6);
  width: 100%;
}

.blog-toc-card {
  background-color: var(--color-bg-canvas-raised);
  border: 1px solid var(--color-border-dark);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
}

.blog-toc-title {
  font-family: var(--font-sans);
  font-size: var(--text-mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0;
  margin-bottom: var(--space-3);
  color: rgba(255, 255, 255, 0.92);
}

.blog-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.blog-toc-item {
  margin-bottom: var(--space-2);
}

.blog-toc-link {
  font-size: var(--text-mono);
  color: rgba(255, 255, 255, 0.60);
  text-decoration: none;
  transition: color 0.15s;
  display: block;
  line-height: 1.4;
}

.blog-toc-link:hover {
  color: var(--accent-teal-400);
}

/* Math rendering container styling */
.math {
  overflow-x: auto;
  padding: var(--space-4) 0;
  font-size: 1.1rem;
}

/* MathJax SVG equation responsiveness */
mjx-container[jax="SVG"] {
  font-size: inherit !important;
  max-width: 100% !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  -webkit-overflow-scrolling: touch;
}

mjx-container[jax="SVG"][display="true"] {
  display: block !important;
  width: 100% !important;
  margin: var(--space-4) 0 !important;
  text-align: center;
}

mjx-container[jax="SVG"] svg {
  max-width: 100% !important;
  height: auto !important;
}

/* Navigation bar for individual posts */
.blog-post-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border-dark);
  padding-bottom: var(--space-4);
  gap: var(--space-4);
}

.blog-post-back-link {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  font-weight: 600;
  font-family: var(--font-sans);
  white-space: nowrap;
}

.blog-post-nav-search {
  width: 250px;
  flex-shrink: 0;
}

/* Ensure images inside article content scale properly */
.blog-post-article-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: var(--space-6) auto;
}

/* Allow dynamic tag chips to wrap */
.grid-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* Responsive Overrides */
@media (max-width: 992px) {
  .featured-post-container {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .blog-post-body-container {
    grid-template-columns: 1fr;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .blog-post-sidebar {
    position: static;
    order: -1;
    /* Move Table of Contents to the top on mobile/tablet */
    margin-bottom: 0;
    width: 100%;
  }

  .blog-post-article-content {
    order: 1;
  }

  .blog-toc-card {
    width: 100%;
    margin-bottom: 0;
  }

  .blog-toc-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-2) var(--space-4);
  }
}

@media (max-width: 640px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .blog-title-header {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-top: var(--space-8);
    text-align: center;
  }

  .blog-brand {
    justify-content: center;
  }

  .blog-search-wrapper {
    margin: 0 auto;
  }

  .grid-section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Individual post responsiveness */
  .blog-post-layout {
    padding: 0 var(--space-4);
  }

  .blog-post-nav-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .blog-post-nav-search {
    width: 100%;
  }

  .blog-post-main-title {
    font-size: 2.2rem;
  }

  .blog-post-desc {
    font-size: 16px;
  }

  .blog-post-article-content {
    padding: var(--space-4);
  }

  .blog-post-image-container {
    aspect-ratio: 16/9;
  }

  .blog-post-image-meta {
    flex-direction: column;
    gap: var(--space-1);
    align-items: flex-start;
  }
}