/* =============================================================================
   MindFlows Blog — Shared Stylesheet
   blog/assets/blog-style.css

   Dark theme matching the main MindFlows site.
   ============================================================================= */

:root {
  --blog-font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    Roboto, 'Helvetica Neue', Arial, sans-serif;
  --blog-bg:            #111827;
  --blog-bg-secondary:  #1f2937;
  --blog-bg-tertiary:   #374151;
  --blog-border:        #374151;
  --blog-border-light:  #4b5563;
  --blog-text:          #ffffff;
  --blog-text-secondary:#d1d5db;
  --blog-text-muted:    #9ca3af;
  --blog-text-faint:    #6b7280;
  --blog-orange:        #ff6d5a;
  --blog-orange-hover:  #ff5722;
  --blog-yellow:        #fbbf24;
  --blog-green:         #34d399;
  --blog-radius:        0.75rem;
  --blog-radius-sm:     0.5rem;
  --blog-shadow:        0 4px 6px -1px rgba(0, 0, 0, 0.3),
                        0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --blog-transition:    150ms ease;
  --blog-content-width: 720px;
  --blog-sidebar-width: 220px;
}

/* ---------------------------------------------------------------------------
   BLOG INDEX — Hero
   --------------------------------------------------------------------------- */
.blog-hero {
  text-align: center;
  padding: 4rem 2rem 3rem;
  background: linear-gradient(180deg, #111827 0%, #1a1f2e 50%, #111827 100%);
  border-bottom: 1px solid var(--blog-border);
}

.blog-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--blog-text);
  margin: 0 0 0.75rem;
  line-height: 1.15;
}

.blog-hero p {
  font-size: 1.125rem;
  color: var(--blog-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------------------------------------------------------------------------
   BLOG INDEX — Post Cards
   --------------------------------------------------------------------------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--blog-bg-secondary);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--blog-text);
  transition: transform var(--blog-transition),
              border-color var(--blog-transition),
              box-shadow var(--blog-transition);
}

.blog-card:hover {
  transform: translateY(-3px);
  border-color: var(--blog-orange);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.blog-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--blog-bg-tertiary);
}

.blog-card-image-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #1f2937 0%, #374151 50%, #1f2937 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blog-text-faint);
  font-size: 2.5rem;
}

.blog-card-body {
  padding: 1.25rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-body h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0.5rem 0;
  color: var(--blog-text);
  line-height: 1.35;
}

.blog-card-body p {
  font-size: 0.875rem;
  color: var(--blog-text-secondary);
  margin: 0 0 1rem;
  line-height: 1.55;
  flex: 1;
}

/* Category pill */
.blog-category {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 9999px;
  line-height: 1.5;
  white-space: nowrap;
}

.blog-category.productivity {
  background: rgba(251, 191, 36, 0.15);
  color: var(--blog-yellow);
}

.blog-category.ai-tech {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
}

.blog-category.knowledge {
  background: rgba(52, 211, 153, 0.15);
  color: var(--blog-green);
}

.blog-category.comparison {
  background: rgba(255, 109, 90, 0.15);
  color: var(--blog-orange);
}

.blog-category.case-study {
  background: rgba(96, 165, 250, 0.15);
  color: #60a5fa;
}

/* Meta row (author, date, read time) */
.blog-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--blog-text-muted);
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--blog-border);
}

.blog-meta-dot {
  color: var(--blog-border-light);
}

.blog-meta-author {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.blog-meta-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--blog-bg-tertiary);
  object-fit: cover;
  flex-shrink: 0;
}

/* Featured card */
.blog-featured {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  background: var(--blog-bg-secondary);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--blog-text);
  margin-bottom: 2rem;
  transition: border-color var(--blog-transition),
              box-shadow var(--blog-transition);
}

.blog-featured:hover {
  border-color: var(--blog-orange);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.blog-featured-image {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  background: var(--blog-bg-tertiary);
}

.blog-featured-body {
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.blog-featured-body .blog-category {
  align-self: flex-start;
}

.blog-featured-body h2 {
  font-size: 1.625rem;
  font-weight: 800;
  margin: 0.75rem 0;
  line-height: 1.25;
  color: var(--blog-text);
}

.blog-featured-body p {
  font-size: 0.9375rem;
  color: var(--blog-text-secondary);
  margin: 0 0 1.25rem;
  line-height: 1.6;
}

/* ---------------------------------------------------------------------------
   BLOG POST — Layout
   --------------------------------------------------------------------------- */
.blog-post-layout {
  display: grid;
  grid-template-columns: var(--blog-sidebar-width) minmax(0, var(--blog-content-width));
  gap: 3rem;
  max-width: calc(var(--blog-sidebar-width) + var(--blog-content-width) + 3rem);
  margin: 0 auto;
  padding: 2.5rem 2rem;
}

/* ---------------------------------------------------------------------------
   BLOG POST — Hero
   --------------------------------------------------------------------------- */
.blog-post-hero {
  position: relative;
  height: 400px;
  background: linear-gradient(135deg, #1f2937 0%, #111827 50%, #1a1f2e 100%);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.blog-post-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.95) 0%, rgba(17, 24, 39, 0.3) 60%, transparent 100%);
}

.blog-post-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
  width: 100%;
}

.blog-post-hero-content h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--blog-text);
  margin: 0.75rem 0;
  line-height: 1.2;
}

.blog-post-hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.blog-post-hero-meta .blog-category {
  font-size: 0.75rem;
}

.blog-post-date-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  color: var(--blog-text-secondary);
  white-space: nowrap;
}

.blog-post-date-pill i {
  font-size: 0.65rem;
  color: var(--blog-text-muted);
}

.blog-read-time {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--blog-text-muted);
}

/* ---------------------------------------------------------------------------
   BLOG POST — Sidebar (Table of Contents)
   --------------------------------------------------------------------------- */
.blog-sidebar {
  position: sticky;
  top: 5rem;
  align-self: start;
}

.blog-toc {
  margin-bottom: 2rem;
}

.blog-toc h4 {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blog-text-muted);
  margin: 0 0 0.75rem;
}

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

.blog-toc li {
  margin-bottom: 0.25rem;
}

.blog-toc a {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--blog-text-secondary);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--blog-transition),
              border-color var(--blog-transition);
  line-height: 1.4;
}

.blog-toc a:hover {
  color: var(--blog-text);
  border-left-color: var(--blog-orange);
}

/* Share buttons */
.blog-share h4 {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blog-text-muted);
  margin: 0 0 0.75rem;
}

.blog-share-buttons {
  display: flex;
  gap: 0.5rem;
}

.blog-share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--blog-radius-sm);
  background: var(--blog-bg-secondary);
  border: 1px solid var(--blog-border);
  color: var(--blog-text-muted);
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--blog-transition),
              border-color var(--blog-transition),
              background var(--blog-transition);
}

.blog-share-btn:hover {
  color: var(--blog-text);
  border-color: var(--blog-orange);
  background: rgba(255, 109, 90, 0.08);
}

/* ---------------------------------------------------------------------------
   BLOG POST — Author Card
   --------------------------------------------------------------------------- */
.blog-author-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--blog-bg-secondary);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  margin-bottom: 2.5rem;
}

.blog-author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--blog-bg-tertiary);
  object-fit: cover;
  flex-shrink: 0;
}

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

.blog-author-name {
  font-weight: 700;
  color: var(--blog-text);
  font-size: 0.9375rem;
}

.blog-author-title {
  font-size: 0.8125rem;
  color: var(--blog-text-muted);
}

/* ---------------------------------------------------------------------------
   BLOG POST — Article Body
   --------------------------------------------------------------------------- */
.blog-article h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
  color: var(--blog-text);
  line-height: 1.3;
}

.blog-article h2:first-child {
  margin-top: 0;
}

.blog-article h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 2rem 0 0.5rem;
  color: var(--blog-text);
}

.blog-article p {
  margin: 0 0 1.25rem;
  color: var(--blog-text-secondary);
  line-height: 1.75;
  font-size: 1rem;
}

.blog-article ul,
.blog-article ol {
  padding-left: 1.5rem;
  margin: 0 0 1.25rem;
  color: var(--blog-text-secondary);
  line-height: 1.75;
}

.blog-article li {
  margin-bottom: 0.4rem;
}

.blog-article a {
  color: var(--blog-orange);
  text-decoration: none;
  transition: color var(--blog-transition);
}

.blog-article a:hover {
  color: var(--blog-text);
}

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

/* Pull quotes */
.blog-pullquote {
  border-left: 3px solid var(--blog-orange);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: rgba(255, 109, 90, 0.05);
  border-radius: 0 var(--blog-radius-sm) var(--blog-radius-sm) 0;
  font-size: 1.125rem;
  font-style: italic;
  color: var(--blog-text);
  line-height: 1.6;
}

/* Video embed */
.blog-video {
  margin: 2rem 0;
}

.blog-video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--blog-radius);
  border: 1px solid var(--blog-border);
  background: #000;
}

.blog-video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.blog-video-caption {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  color: var(--blog-text-muted);
  font-style: italic;
}

.blog-video-guide {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--blog-orange);
  text-decoration: none;
  transition: color var(--blog-transition);
}

.blog-video-guide:hover {
  color: var(--blog-text);
}

/* Key takeaways box */
.blog-takeaways {
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  background: rgba(52, 211, 153, 0.06);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--blog-radius-sm);
}

.blog-takeaways h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--blog-green);
  margin: 0 0 0.5rem;
}

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

.blog-takeaways li {
  padding: 0.25rem 0;
  font-size: 0.875rem;
  color: var(--blog-text-secondary);
}

.blog-takeaways li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  color: var(--blog-green);
  margin-right: 0.5rem;
  font-size: 0.7rem;
}

/* TL;DR summary */
.blog-tldr {
  padding: 1.25rem 1.5rem;
  margin: 0 0 2rem;
  background: rgba(251, 191, 36, 0.06);
  border: 1px solid rgba(251, 191, 36, 0.2);
  border-radius: var(--blog-radius-sm);
}

.blog-tldr h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--blog-yellow);
  margin: 0 0 0.5rem;
}

.blog-tldr p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--blog-text-secondary);
  line-height: 1.6;
}

/* ---------------------------------------------------------------------------
   BLOG POST — Related Posts
   --------------------------------------------------------------------------- */
.blog-related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--blog-border);
}

.blog-related h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--blog-text);
  margin: 0 0 1.25rem;
}

.blog-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* ---------------------------------------------------------------------------
   BLOG POST — CTA Banner
   --------------------------------------------------------------------------- */
.blog-cta {
  text-align: center;
  padding: 3rem 2rem;
  margin: 3rem 0 0;
  background: linear-gradient(135deg, var(--blog-bg-secondary) 0%, #1a1f2e 100%);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
}

.blog-cta h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blog-text);
  margin: 0 0 0.5rem;
}

.blog-cta p {
  color: var(--blog-text-secondary);
  margin: 0 0 1.5rem;
  font-size: 1rem;
}

.blog-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--blog-orange);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--blog-radius-sm);
  text-decoration: none;
  transition: background var(--blog-transition);
}

.blog-cta-btn:hover {
  background: var(--blog-orange-hover);
}

/* ---------------------------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-featured {
    grid-template-columns: 1fr;
  }

  .blog-featured-image {
    min-height: 240px;
  }

  .blog-post-layout {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
  }

  .blog-sidebar {
    position: static;
    display: flex;
    gap: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--blog-border);
    margin-bottom: 1.5rem;
  }

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

@media (max-width: 640px) {
  .blog-hero h1 {
    font-size: 2rem;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .blog-post-hero {
    height: 300px;
  }

  .blog-post-hero-content h1 {
    font-size: 1.75rem;
  }

  .blog-sidebar {
    flex-direction: column;
    gap: 1rem;
  }

  .blog-related-grid {
    grid-template-columns: 1fr;
  }

  .blog-post-layout {
    padding: 1.5rem 1rem;
  }
}