/* 
  SINGLE POST & TUTORIAL VIEW STYLES (Strict Black & White ONLY)
  Clean editorial typography matching the AstroBlog theme.
*/

.single-article-header {
  margin-bottom: 32px;
}

.single-article-title {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.25;
  margin: 14px 0 16px;
  color: var(--mono-1000);
}

.single-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-top: 1px solid var(--pub-card-border);
  border-bottom: 1px solid var(--pub-card-border);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.single-meta-left {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--pub-text-muted);
}

.single-meta-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  color: var(--mono-1000);
  background: var(--pub-bg);
  transition: var(--transition);
}

.btn-icon-pill:hover {
  background: var(--pub-hover-bg);
}

/* Featured Hero Media */
.single-hero-media {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: transparent;
  border: 1px solid var(--pub-card-border);
  margin-bottom: 36px;
  position: relative;
  display: block;
}

.single-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Article Typography */
.article-lead {
  font-size: 19px;
  line-height: 1.6;
  color: var(--mono-800);
  margin-bottom: 28px;
  font-weight: 500;
}

.article-body-content {
  font-size: 16px;
  line-height: 1.8;
  color: #262626;
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}

.article-body-content h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 40px 0 18px;
  color: var(--mono-1000);
}

.article-body-content h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.4px;
  margin: 36px 0 16px;
  color: var(--mono-1000);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--pub-card-border);
  scroll-margin-top: 90px;
}

.article-body-content h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--mono-1000);
  scroll-margin-top: 90px;
}

.article-body-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 24px 0 10px;
  color: var(--mono-1000);
  scroll-margin-top: 90px;
}

.article-body-content h5, .article-body-content h6 {
  font-size: 14px;
  font-weight: 700;
  margin: 20px 0 8px;
  color: var(--mono-900);
}

.article-body-content p {
  margin-bottom: 20px;
}

.article-body-content a {
  color: var(--mono-1000);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
  transition: var(--transition);
}

.article-body-content a:hover {
  color: #000000;
  background: var(--pub-hover-bg);
}

.article-body-content ul, .article-body-content ol {
  margin: 0 0 24px 24px;
}

.article-body-content li {
  margin-bottom: 8px;
}

.article-body-content blockquote {
  border-left: 3px solid var(--mono-1000);
  padding: 14px 22px;
  margin: 24px 0;
  font-style: italic;
  color: var(--mono-700);
  background: var(--pub-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* Responsive Images & Figures */
.article-body-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 24px auto;
  display: block;
  border: 1px solid var(--pub-card-border);
}

.article-body-content figure {
  margin: 28px 0;
  text-align: center;
}

.article-body-content figcaption {
  font-size: 12px;
  color: var(--pub-text-muted);
  margin-top: 8px;
  font-style: italic;
}

/* Code & Pre Blocks */
.article-body-content pre {
  background: #0d0d0d;
  color: #f5f5f5;
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 24px 0;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.6;
  max-width: 100%;
}

.article-body-content code {
  background: var(--pub-surface);
  color: var(--mono-1000);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
  border: 1px solid var(--pub-card-border);
}

.article-body-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  border: none;
  font-size: inherit;
}

/* Responsive Tables - Protected from blowing out site layout */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 24px 0;
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-md);
}

.article-body-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

.article-body-content th {
  background: var(--pub-surface);
  color: var(--mono-1000);
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1px solid var(--pub-card-border);
  white-space: nowrap;
}

.article-body-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--pub-card-border);
  color: var(--mono-800);
}

.article-body-content tr:last-child td {
  border-bottom: none;
}

/* Responsive Video & Embed Containers */
.video-embed-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin: 28px 0;
  border: 1px solid var(--pub-card-border);
  background: #000000;
}

.video-embed-wrap iframe,
.video-embed-wrap video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.article-body-content video {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--pub-card-border);
  display: block;
  margin: 24px 0;
}

.article-body-content hr {
  border: none;
  border-top: 1px solid var(--pub-card-border);
  margin: 36px 0;
}

/* Details & Summary Collapsibles */
.article-body-content details {
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin: 20px 0;
  background: var(--pub-surface);
}

.article-body-content details summary {
  font-weight: 700;
  cursor: pointer;
  outline: none;
  color: var(--mono-1000);
}

.article-body-content details[open] summary {
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--pub-card-border);
}

/* Loopacut Pro Tip Callout Blocks */
.editor-callout-block {
  border: 1px solid var(--pub-card-border);
  background: var(--pub-surface);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin: 24px 0;
}

.editor-callout-badge {
  display: inline-block;
  background: var(--mono-1000);
  color: var(--mono-0);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.toc-sublink {
  padding-left: 12px !important;
  font-size: 12px !important;
  color: var(--pub-text-subtle) !important;
}

.toc-sublink:hover {
  color: var(--mono-1000) !important;
}

/* Curated Post Roundup & Series Block overrides inside Article Body */
.article-body-content .curated-roundup-block {
  margin: 36px 0;
  padding: 28px 24px;
  background: var(--pub-surface);
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-lg);
}

.article-body-content .curated-roundup-block a {
  text-decoration: none !important;
  background: transparent !important;
}

.article-body-content .roundup-heading {
  margin: 0 !important;
  font-size: 21px !important;
  font-weight: 800 !important;
  color: var(--mono-1000) !important;
  border-bottom: none !important;
  padding: 0 !important;
}

.article-body-content .roundup-card-title {
  font-size: 15px !important;
  font-weight: 700 !important;
  margin: 0 0 8px !important;
  line-height: 1.35 !important;
}

.article-body-content .roundup-card-excerpt {
  font-size: 13px !important;
  color: var(--pub-text-muted) !important;
  line-height: 1.5 !important;
  margin: 0 0 14px !important;
}

.article-body-content .roundup-card img {
  margin: 0 !important;
  border-radius: 0 !important;
  border: none !important;
}

/* Tutorial Step & Callout Boxes */
.tutorial-callout {
  border: 1px solid var(--pub-card-border);
  background: var(--pub-surface);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 28px 0;
}

.tutorial-callout strong {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--mono-1000);
}

.tutorial-step-card {
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 24px 0;
  background: var(--pub-card-bg);
}

.step-badge-pill {
  display: inline-block;
  background: var(--mono-1000);
  color: var(--mono-0);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  text-transform: uppercase;
}

/* Author Bio Card */
.author-bio-card {
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin: 48px 0;
  background: var(--pub-surface);
}

.author-bio-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--mono-950);
  color: var(--mono-0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
}

.author-bio-info h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.author-bio-info p {
  font-size: 13px;
  color: var(--pub-text-muted);
  line-height: 1.5;
}

/* Previous / Next Article Navigation */
.post-nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 40px 0;
  padding-top: 24px;
  border-top: 1px solid var(--pub-card-border);
}

.post-nav-card {
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: var(--transition);
  cursor: pointer;
}

.post-nav-card:hover {
  background: var(--pub-hover-bg);
}

.post-nav-label {
  font-size: 11px;
  color: var(--pub-text-subtle);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}

.post-nav-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--mono-1000);
}

/* Related Articles Section */
.related-posts-section {
  margin: 48px 0;
}

.related-posts-section h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

/* Comments Section */
.comments-section-wrap {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--pub-card-border);
}

.comments-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.comments-header-row h3 {
  font-size: 20px;
  font-weight: 800;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.comment-card-item {
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-md);
  padding: 20px;
  background: var(--pub-card-bg);
}

.comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.comment-author-name {
  font-size: 14px;
  font-weight: 700;
}

.comment-date {
  font-size: 11px;
  color: var(--pub-text-subtle);
}

.comment-body {
  font-size: 14px;
  color: var(--mono-700);
  line-height: 1.5;
}

.comment-form-card {
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  background: var(--pub-surface);
}

.comment-form-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.comment-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

/* Sidebar Table of Contents */
.toc-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-link {
  font-size: 13px;
  color: var(--pub-text-muted);
  padding: 4px 0;
  transition: var(--transition);
  display: block;
}

.toc-link:hover {
  color: var(--mono-1000);
  padding-left: 4px;
}

/* Seamless Interactive Frame for AI-Generated Posts (JS, CSS & HTML) */
.article-interactive-frame {
  width: 100%;
  border: none;
  background: transparent;
  display: block;
  overflow: hidden;
  min-height: 480px;
  transition: height 0.2s ease;
}

/* Mobile Collapsible Table of Contents Accordion */
.mobile-toc-accordion {
  display: none;
  background: var(--pub-card-bg);
  border: 1px solid var(--pub-card-border);
  border-radius: var(--radius-md);
  margin-bottom: 28px;
  overflow: hidden;
}

.mobile-toc-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  background: var(--pub-card-bg);
  color: var(--mono-1000);
  transition: var(--transition);
}

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

.mobile-toc-summary:hover {
  background: var(--pub-hover-bg);
}

.mobile-toc-chevron {
  transition: transform 0.2s ease;
  font-size: 16px;
  color: var(--mono-500);
}

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

.mobile-toc-dropdown-list {
  padding: 12px 18px 16px;
  border-top: 1px solid var(--pub-card-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--pub-bg);
}

.article-body-content h1,
.article-body-content h2,
.article-body-content h3,
.article-body-content h4,
.comments-section-wrap,
.single-hero-media,
.article-lead {
  scroll-margin-top: 84px;
}

/* Single Post Responsive Media Queries */
@media (max-width: 860px) {
  .article-body-content h1,
  .article-body-content h2,
  .article-body-content h3,
  .article-body-content h4,
  .comments-section-wrap,
  .single-hero-media,
  .article-lead {
    scroll-margin-top: 72px;
  }
  .mobile-toc-accordion {
    display: block;
  }
  .single-article-header {
    margin-bottom: 20px;
  }
  .single-article-title {
    font-size: 28px;
    letter-spacing: -0.5px;
    line-height: 1.3;
    margin: 10px 0 14px;
    word-break: break-word;
  }
  .single-meta-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    margin-bottom: 24px;
  }
  .single-meta-actions {
    width: 100%;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .article-lead {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
  }
  .article-body-content {
    font-size: 15px;
    line-height: 1.75;
  }
  .article-body-content h1 {
    font-size: 24px;
    margin: 28px 0 14px;
  }
  .article-body-content h2 {
    font-size: 21px;
    margin: 26px 0 12px;
  }
  .article-body-content h3 {
    font-size: 18px;
    margin: 22px 0 10px;
  }
  .post-nav-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .comments-section-wrap {
    margin-top: 36px;
    padding-top: 24px;
  }
  .comment-form-card {
    padding: 20px 16px;
  }
  .comment-inputs-grid {
    grid-template-columns: 1fr;
  }
  .comment-card-item {
    padding: 16px 14px;
  }
}

@media (max-width: 480px) {
  .single-article-title {
    font-size: 24px;
  }
  .btn-icon-pill {
    padding: 6px 10px;
    font-size: 11px;
  }
  .article-interactive-frame {
    min-height: 380px;
  }
}