/* ===== BLOG PAGE HEADER ===== */
.blog-page-header {
  margin-bottom: var(--space-5);
}

.blog-page-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
  text-align: center;
}

.blog-page-title .highlight {
  color: var(--color-accent);
}

.blog-page-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-align: center;
}

/* ===== BLOG PAGE LAYOUT (2 columns) ===== */
.blog-page-layout {
  display: flex;
  gap: var(--space-4);
  height: 100%;
  min-height: 400px;
}

/* ===== BLOG TITLES LIST (left sidebar) ===== */
.blog-titles-list {
  flex: 0 0 260px;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border-right: 1px solid var(--color-border);
  padding-right: var(--space-4);
}

.blog-title-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  background: white;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  width: 100%;
}

.blog-title-item:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-off-white);
}

.blog-title-item.active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: white;
}

.blog-title-item.active .blog-title-meta {
  color: rgba(255, 255, 255, 0.8);
}

.blog-title-item.active .blog-title-icon {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.blog-title-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-off-white);
  color: var(--color-accent);
  font-size: 0.85rem;
}

.blog-title-info h4 {
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 2px;
  color: #2563eb;
}

.blog-title-meta {
  font-size: 0.65rem;
  color: var(--color-text-muted);
}

/* ===== BLOG DYNAMIC CONTENT (right area) ===== */
.blog-dynamic-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3);
  background: var(--color-bg-off-white);
  border-radius: var(--card-radius);
}

.blog-article-content {
  display: none;
}

.blog-article-content.active {
  display: block;
}

.blog-article-header {
  background: #f7f7f8;
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
}

.blog-article-meta-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.blog-article-category {
  padding: var(--space-1) var(--space-3);
  background: var(--color-accent);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Category-specific colors for article badges (same as cards) */
.blog-article-category-strategy {
  background: #dbeafe !important;
  color: #1e40af !important;
}

.blog-article-category-technical {
  background: #fee2e2 !important;
  color: #991b1b !important;
}

.blog-article-category-research {
  background: #fef3c7 !important;
  color: #92400e !important;
}

.blog-article-date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.blog-article-date i {
  color: #5B9BD5;
}

.blog-article-title {
  font-size: 3rem !important;
  font-weight: 600 !important;
  line-height: 1.15 !important;
  text-align: center;
  color: #5493BD !important;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
  font-family: Georgia, 'Times New Roman', Times, serif !important;
}

.blog-article-subtitle {
  font-size: 1.25rem;
  font-style: italic;
  text-align: center;
  color: #6b7280;
  margin: 0;
  font-weight: 400;
  line-height: 1.5;
  font-family: Georgia, 'Times New Roman', Times, serif;
}

.blog-article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.blog-article p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

/* ===== BLOG SEARCH BAR ===== */
.blog-search-container {
  margin-bottom: var(--space-5);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.blog-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: white;
  border: 2px solid rgba(99, 146, 185, 0.2);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.blog-search-wrapper:focus-within {
  border-color: #E65100;
  box-shadow: 0 4px 16px rgba(230, 81, 0, 0.2);
  transform: translateY(-2px);
}

.blog-search-icon {
  color: #E65100;
  font-size: 1rem;
  margin-right: 0.75rem;
  transition: all 0.3s ease;
}

.blog-search-wrapper:focus-within .blog-search-icon {
  color: #BF360C;
  transform: scale(1.1);
}

.blog-search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  background: transparent;
  font-family: 'Inter', sans-serif;
}

.blog-search-input::placeholder {
  color: #A0AEC0;
  font-size: 0.875rem;
}

.blog-clear-search-btn {
  background: rgba(230, 81, 0, 0.1);
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #718096;
  margin-left: 0.5rem;
}

.blog-clear-search-btn:hover {
  background: rgba(230, 81, 0, 0.2);
  color: #E65100;
  transform: scale(1.1);
}

.blog-search-results-count {
  text-align: center;
  font-size: 0.8125rem;
  color: #718096;
  margin-top: var(--space-2);
  font-weight: 500;
}

/* ===== BLOG NO RESULTS ===== */
.blog-no-results {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: #A0AEC0;
}

.blog-no-results i {
  font-size: 3rem;
  margin-bottom: var(--space-3);
  opacity: 0.4;
}

.blog-no-results p {
  font-size: 1rem;
  font-weight: 500;
}

/* ===== BLOG ABOUT SECTION (cards on About page) ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.blog-card {
  background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
  border: 1px solid rgba(99, 146, 185, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(99, 146, 185, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

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

.blog-card > * {
  position: relative;
  z-index: 1;
}

.blog-card:hover {
  transform: translateY(-6px);
  background: #F8F4F2 !important;
  box-shadow: 0 12px 30px rgba(230, 81, 0, 0.25) !important;
  border: 2px solid #E65100 !important;
}

.blog-card:hover .blog-title {
  color: #E65100 !important;
}

.blog-card:hover .blog-image-placeholder {
  background: #FFE5D9 !important;
}

.blog-card:hover .blog-image-placeholder i {
  color: #E65100 !important;
}

.blog-card.hidden {
  display: none;
}

.blog-image {
  display: block;
  position: relative;
  aspect-ratio: 16/8;
  overflow: hidden;
}

.blog-image-placeholder {
  opacity: 1;
}

/* Icon colors for each category - full opacity */
.blog-icon-strategy {
  color: #1a8f8f !important;
}

.blog-icon-technical {
  color: #d14147 !important;
}

/* Specific colors for ISIP article */
[data-article-id="isip-platform"] .blog-image-placeholder {
  background: #E5E5E5 !important;
}

.blog-icon-isip-platform {
  color: #757575 !important;
}

/* Specific colors for The Laws We Lost article */
[data-article-id="monad-transformer-laws"] .blog-image-placeholder {
  background: #EBCFCF !important;
}

.blog-icon-monad-transformer-laws {
  color: #C58E8C !important;
}

/* Specific colors for Lift, Run, Compose article */
[data-article-id="llm-orchestration"] .blog-image-placeholder {
  background: #D3E8F3 !important;
}

.blog-icon-llm-orchestration {
  color: #5B9BD5 !important;
}

/* Specific colors for Algebra of Algorithmic Trading article */
[data-article-id="algebra-algorithmic-trading"] .blog-image-placeholder {
  background: #D9E8E4 !important;
}

.blog-icon-algebra-algorithmic-trading {
  color: #5A9B87 !important;
}

/* Specific colors for eDSR Methodology article */
[data-article-id="edsr-methodology"] .blog-image-placeholder {
  background: #E5DDD1 !important;
}

.blog-icon-edsr-methodology {
  color: #9B865A !important;
}

.blog-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent 0%, rgba(99, 146, 185, 0.1) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

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

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

.blog-category {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  padding: 0.125rem var(--space-2);
  background: linear-gradient(135deg, #6FC0F2 0%, #5BACDE 100%);
  color: white;
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(99, 146, 185, 0.3);
}

/* Category-specific badge colors (from news feed) */
.blog-category-strategy {
  background: #dbeafe !important;
  color: #1e40af !important;
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3) !important;
}

.blog-category-technical {
  background: #fee2e2 !important;
  color: #991b1b !important;
  box-shadow: 0 2px 8px rgba(153, 27, 27, 0.3) !important;
}

.blog-category-research {
  background: #fef3c7 !important;
  color: #92400e !important;
  box-shadow: 0 2px 8px rgba(146, 64, 14, 0.3) !important;
}

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

.blog-meta {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.blog-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.blog-meta i {
  color: var(--color-accent);
}

.blog-title {
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
  line-height: 1.3;
  color: #5493BD;
  font-weight: 600;
}

.blog-excerpt {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  color: #E65100;
  transition: gap var(--transition-fast);
}

.blog-link:hover {
  gap: var(--space-3);
}

.blog-link i {
  transition: transform var(--transition-fast);
}

.blog-link:hover i {
  transform: translateX(3px);
}

/* ===== MARKDOWN BODY (rendered article content) ===== */
.markdown-body {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.markdown-body h1 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
  line-height: 1.3;
  color: var(--color-text-primary);
}

.markdown-body h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.markdown-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.markdown-body p {
  margin-bottom: var(--space-3);
}

.markdown-body ul,
.markdown-body ol {
  margin-bottom: var(--space-3);
  padding-left: var(--space-5);
}

.markdown-body li {
  margin-bottom: var(--space-1);
}

.markdown-body strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.markdown-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-4);
  margin: var(--space-4) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-4);
  font-size: var(--text-xs);
}

.markdown-body th,
.markdown-body td {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  text-align: left;
}

.markdown-body th {
  background: var(--color-accent);
  color: white;
  font-weight: 600;
}

.markdown-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-5) 0;
}

.markdown-body em {
  color: var(--color-text-muted);
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-4) 0;
  display: block;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.markdown-body p > img {
  margin: var(--space-5) auto;
}

/* ===== BLOG LOADING STATE ===== */
.blog-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8) 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.blog-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: blog-spin 0.8s linear infinite;
}

@keyframes blog-spin {
  to { transform: rotate(360deg); }
}

/* ===== BLOG ERROR STATE ===== */
.blog-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8) 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  text-align: center;
}

.blog-error i {
  font-size: 2rem;
  color: #6FC0F2;
}

/* ===== BLOG BACK BUTTON ===== */
.blog-back-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  margin-bottom: var(--space-5);
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: var(--card-radius);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(111, 192, 242, 0.2);
}

.blog-back-button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(111, 192, 242, 0.3);
}

.blog-back-button:active {
  transform: translateY(0);
}

.blog-back-button i {
  font-size: 0.9rem;
}

/* ===== BLOG ARTICLE VIEWER ===== */
.blog-article-viewer {
  animation: fadeIn 0.3s ease;
}

.blog-article-full-content {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}

.blog-article-full-content .blog-article-content {
  background: var(--color-bg-off-white);
  border-radius: var(--card-radius);
  padding: var(--space-8);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .blog-page-layout {
    flex-direction: column;
  }

  .blog-titles-list {
    flex: none;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding-right: 0;
    padding-bottom: var(--space-3);
  }
}