/* Emerrank Blog styles */

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 2rem;
}

.blog-search {
  flex: 1;
  min-width: 220px;
  max-width: 400px;
}

.blog-category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.blog-pill {
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  background: var(--bg-white);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.blog-pill:hover,
.blog-pill.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #fff;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.blog-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.blog-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gradient-hero);
}

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

.blog-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.blog-card-category {
  color: var(--accent-blue);
  font-weight: 600;
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.blog-card-title a {
  color: var(--text-primary);
  text-decoration: none;
}

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

.blog-card-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  flex: 1;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.blog-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--bg-light);
  color: var(--text-secondary);
}

.blog-pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2.5rem;
}

.blog-pagination button {
  min-width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg-white);
  color: var(--text-primary);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.blog-pagination button:hover:not(:disabled),
.blog-pagination button.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #fff;
}

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

.blog-empty {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

/* Article layout */
.blog-article-hero {
  position: relative;
  min-height: 320px;
  background: var(--gradient-hero);
  display: flex;
  align-items: flex-end;
  padding-top: calc(var(--navbar-height) + 2rem);
  overflow: hidden;
  isolation: isolate;
}

.blog-article-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.18;
  z-index: 0;
  filter: saturate(0.8) blur(2px);
  pointer-events: none;
}

.blog-article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(10, 22, 40, 0.55) 0%,
    rgba(10, 22, 40, 0.78) 50%,
    rgba(10, 22, 40, 0.95) 100%
  );
  pointer-events: none;
}

.blog-article-hero-content {
  position: relative;
  z-index: 2;
  padding: 2.5rem 0 3rem;
  color: var(--text-on-dark);
  width: 100%;
}

.blog-article-hero-content h1 {
  color: var(--text-on-dark);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.25;
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.45);
}

.blog-article-hero .breadcrumb-ecs,
.blog-article-hero .breadcrumb-ecs span {
  color: rgba(248, 250, 252, 0.85);
}

.blog-article-hero .breadcrumb-ecs a {
  color: var(--accent-cyan);
}

.blog-article-hero .blog-card-category {
  color: var(--accent-cyan);
  font-weight: 600;
}

.blog-article-hero .blog-tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-on-dark);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.blog-article-hero .blog-article-meta,
.blog-article-hero .blog-article-meta span {
  color: rgba(248, 250, 252, 0.92);
}

.blog-article-hero .text-uppercase {
  color: rgba(248, 250, 252, 0.8);
}

.blog-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.9rem;
  opacity: 0.9;
  margin-bottom: 1rem;
}

.blog-article-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  padding: 3rem 0;
}

@media (max-width: 991px) {
  .blog-article-layout {
    grid-template-columns: 1fr;
  }
  .blog-toc {
    order: -1;
    position: static !important;
  }
}

.blog-toc {
  position: sticky;
  top: calc(var(--navbar-height) + 1.5rem);
  align-self: start;
}

.blog-toc-inner {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--border-light);
}

.blog-toc h2 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

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

.blog-toc li {
  margin-bottom: 0.35rem;
}

.blog-toc a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  padding: 0.25rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  transition: var(--transition);
}

.blog-toc a:hover,
.blog-toc a.active {
  color: var(--accent-blue);
  border-left-color: var(--accent-blue);
}

.blog-toc .toc-h3 {
  padding-left: 1.25rem;
  font-size: 0.8125rem;
}

.blog-article-content {
  max-width: 720px;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-primary);
}

.blog-article-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  scroll-margin-top: calc(var(--navbar-height) + 1rem);
}

.blog-article-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  scroll-margin-top: calc(var(--navbar-height) + 1rem);
}

.blog-article-content p {
  margin-bottom: 1.25rem;
}

.blog-article-content ul,
.blog-article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.blog-article-content li {
  margin-bottom: 0.5rem;
}

.blog-article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
}

.blog-article-content th,
.blog-article-content td {
  border: 1px solid var(--border-light);
  padding: 0.75rem 1rem;
  text-align: left;
}

.blog-article-content th {
  background: var(--bg-light);
  font-weight: 600;
}

.blog-article-content pre {
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  overflow-x: auto;
}

.blog-article-content code:not(pre code) {
  background: var(--bg-light);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent-purple);
}

.blog-callout {
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-left: 4px solid;
}

.blog-callout-note {
  background: rgba(37, 99, 235, 0.08);
  border-left-color: var(--accent-blue);
}

.blog-callout-warning {
  background: rgba(245, 158, 11, 0.1);
  border-left-color: #f59e0b;
}

.blog-callout strong {
  display: block;
  margin-bottom: 0.35rem;
}

.blog-share {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2.5rem 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}

.blog-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg-white);
  color: var(--text-primary);
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}

.blog-share-btn:hover {
  background: var(--bg-light);
  color: var(--accent-blue);
}

.blog-nav-posts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2rem 0;
}

@media (max-width: 575px) {
  .blog-nav-posts {
    grid-template-columns: 1fr;
  }
}

.blog-nav-card {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: var(--bg-light);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

.blog-nav-card small {
  color: var(--text-secondary);
  display: block;
  margin-bottom: 0.35rem;
}

.blog-nav-card strong {
  color: var(--text-primary);
}

.blog-text-diagram {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 1.5rem 0;
  white-space: pre;
  overflow-x: auto;
}

.blog-takeaways,
.blog-next-reads {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  border: 1px solid var(--border-light);
}

.blog-takeaways h2,
.blog-next-reads h2,
.blog-faq h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.blog-faq {
  margin: 2.5rem 0;
}

.blog-category-section {
  margin-bottom: 3.5rem;
}

.blog-category-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border-light);
}

.blog-category-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.blog-category-desc {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.blog-category-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.blog-series-track {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.25rem 0.25rem 1rem;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.blog-series-track::-webkit-scrollbar {
  height: 8px;
}

.blog-series-track::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 999px;
}

.blog-card-compact {
  flex: 0 0 280px;
  scroll-snap-align: start;
  min-height: 200px;
}

.blog-card-compact-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
}

.blog-card-compact .blog-card-title {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-compact .blog-card-desc {
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-lesson-num {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  background: var(--accent-blue);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.blog-card-compact-meta {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: auto;
}

.blog-series-track-inline {
  margin-bottom: 0;
}

.blog-continue-path {
  margin: 2rem 0;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(124, 58, 237, 0.06));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
}

.blog-continue-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.blog-continue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.blog-continue-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: var(--bg-white);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
  min-height: 120px;
}

.blog-continue-card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.blog-continue-card small {
  color: var(--accent-blue);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.blog-continue-card strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
}

.blog-continue-card span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.blog-continue-next {
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.04);
}

.blog-sections-mode .blog-grid {
  margin-bottom: 0;
}

#blog-grid.blog-sections-mode {
  display: block;
  width: 100%;
}

.blog-category-section {
  width: 100%;
}

.blog-lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  width: 100%;
}

.blog-lesson-grid .blog-card-compact {
  flex: unset;
  width: auto;
  min-height: 200px;
}

.blog-category-focused .blog-series-track {
  width: 100%;
}

.blog-level-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent-blue);
  vertical-align: middle;
  margin-right: 0.35rem;
}

.blog-level-intermediate {
  background: rgba(124, 58, 237, 0.12);
  color: var(--accent-purple);
}

.blog-related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}

.blog-related h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

/* Dark mode (system preference) */
@media (prefers-color-scheme: dark) {
  .blog-card,
  .blog-pill,
  .blog-pagination button,
  .blog-share-btn {
    background: var(--primary-light);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-on-dark);
  }

  .blog-card-desc,
  .blog-card-meta,
  .blog-tag {
    color: var(--text-light);
  }

  .blog-card-title a {
    color: var(--text-on-dark);
  }

  .blog-toc-inner {
    background: var(--primary-light);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .blog-nav-card {
    background: var(--primary-light);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .blog-article-content {
    color: var(--text-on-dark);
  }

  .blog-article-content th {
    background: var(--primary);
  }

  .blog-continue-card {
    background: var(--primary-light);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .blog-card-compact .blog-card-desc,
  .blog-card-compact-meta {
    color: var(--text-light);
  }

  .blog-continue-path {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(124, 58, 237, 0.12));
  }
}