/* ==========================================================================
   Single Post — hero, featured image, content + TOC sidebar, author card,
   share buttons, prev/next nav, reading progress bar, mobile TOC
   ========================================================================== */

/* --- Reading Progress Bar --- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-primary);
  z-index: 9998;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* --- Dark Hero --- */
.single-hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, #1f2937 55%, #450a0a 100%);
  color: var(--color-white);
  padding: var(--space-12) 0 var(--space-10);
  position: relative;
  overflow: hidden;
}

.has-hero-overlap .single-hero {
  padding-top: calc(var(--space-12) + 100px);
}

.single-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(237, 28, 36, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.single-hero__inner {
  position: relative;
  z-index: 1;
}

/* Breadcrumb (light variant for dark hero) */
.breadcrumb--light {
  margin-bottom: var(--space-5);
}

.breadcrumb--light a,
.breadcrumb--light .breadcrumb__sep,
.breadcrumb--light .breadcrumb__current {
  font-size: var(--text-sm);
}

.breadcrumb--light a {
  color: #94A3B8;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

.breadcrumb--light a:hover {
  color: var(--color-white);
}

.breadcrumb--light .breadcrumb__sep {
  color: rgba(148, 163, 184, 0.4);
  margin: 0 var(--space-1);
}

.breadcrumb--light .breadcrumb__current {
  color: rgba(148, 163, 184, 0.7);
}

.single-hero__nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.single-hero__cat-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-white);
  background: var(--color-primary);
  padding: 2px var(--space-3);
  border-radius: var(--radius-sm);
}

.single-hero__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-tight);
  max-width: 800px;
  margin-bottom: var(--space-4);
}

.single-hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: #94A3B8;
  flex-wrap: wrap;
}

.single-hero__sep {
  opacity: 0.4;
}

/* --- Featured Image --- */
.single-featured {
  margin-top: calc(-1 * var(--space-6));
  margin-bottom: var(--space-10);
}

.single-featured__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.single-featured__caption {
  font-size: var(--text-sm);
  color: var(--color-muted);
  text-align: center;
  margin-top: var(--space-3);
}

/* --- Mobile TOC (collapsible, < 1024px only) --- */
.single-mobile-toc {
  display: none;
  margin: 0 auto var(--space-6);
  max-width: 720px;
  padding: 0 var(--space-6);
}

@media (max-width: 1023px) {
  .single-mobile-toc {
    display: block;
  }
}

.single-mobile-toc__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: var(--color-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-ink);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-default);
}

.single-mobile-toc__toggle:hover {
  border-color: var(--color-primary);
}

.single-mobile-toc__chevron {
  transition: transform var(--duration-fast) var(--ease-default);
}

.single-mobile-toc__toggle[aria-expanded="true"] .single-mobile-toc__chevron {
  transform: rotate(180deg);
}

.single-mobile-toc__nav {
  display: none;
  background: var(--color-soft);
  border: 1px solid var(--color-line);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.single-mobile-toc__toggle[aria-expanded="true"] + .single-mobile-toc__nav {
  display: block;
}

.single-mobile-toc__toggle[aria-expanded="true"] {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.single-mobile-toc__nav a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-2);
  transition: color var(--duration-fast) var(--ease-default);
}

.single-mobile-toc__nav a:hover {
  color: var(--color-primary);
}

/* --- Content + Sidebar Layout --- */
.single-content__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  max-width: 960px;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .single-content__layout {
    grid-template-columns: 1fr 260px;
  }
}

/* --- Article Content --- */
.single-content__article {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  overflow-wrap: break-word;
}

.single-content__article h2 {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-ink);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  scroll-margin-top: 100px;
}

.single-content__article h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-ink);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.single-content__article p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-body);
  margin-bottom: var(--space-5);
}

.single-content__article ul,
.single-content__article ol {
  margin-bottom: var(--space-5);
  padding-left: var(--space-6);
}

.single-content__article li {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-body);
  margin-bottom: var(--space-2);
}

.single-content__article img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: var(--space-6) 0;
}

.single-content__article blockquote {
  border-left: 4px solid var(--color-primary);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background: var(--color-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.single-content__article blockquote p {
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-ink);
  margin-bottom: 0;
}

.single-content__article a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.single-content__article a:hover {
  color: var(--color-ink);
}

/* Migrated content: inline CTA box override */
.single-content__article .blog-cta {
  background: var(--color-soft) !important;
  padding: var(--space-6) var(--space-8) !important;
  border-radius: var(--radius-md) !important;
  border-left: 4px solid var(--color-primary) !important;
  margin-top: var(--space-10) !important;
}

.single-content__article .blog-cta p {
  max-width: none;
}

.single-content__article .blog-cta a[style*="background"] {
  display: inline-block !important;
  background: var(--color-primary) !important;
  color: var(--color-white) !important;
  padding: var(--space-3) var(--space-6) !important;
  border-radius: var(--radius-sm) !important;
  text-decoration: none !important;
  font-weight: var(--font-weight-semibold) !important;
  transition: opacity var(--duration-fast) var(--ease-default);
}

.single-content__article .blog-cta a[style*="background"]:hover {
  opacity: 0.9;
}

/* Clean up block editor leftovers */
.single-content__article div:empty {
  display: none;
}

.single-content__article .wp-block-image {
  margin: var(--space-6) 0;
}

.single-content__article figure {
  margin: var(--space-6) 0;
  max-width: 100%;
}

.single-content__article figure img {
  border-radius: var(--radius-sm);
}

.single-content__article figcaption {
  font-size: var(--text-sm);
  color: var(--color-muted);
  text-align: center;
  margin-top: var(--space-2);
}

.single-content__article table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
}

.single-content__article th,
.single-content__article td {
  border: 1px solid var(--color-line);
  padding: var(--space-3) var(--space-4);
  text-align: left;
}

.single-content__article th {
  background: var(--color-soft);
  font-weight: var(--font-weight-semibold);
}

/* --- Tags --- */
.single-content__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-line);
}

.single-content__tag {
  font-size: var(--text-xs);
  color: var(--color-muted);
  background: var(--color-soft);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  text-decoration: none;
}

.single-content__tag a {
  color: inherit;
  text-decoration: none;
}

/* --- Sticky TOC Sidebar --- */
.single-sidebar__sticky {
  position: sticky;
  top: 100px;
}

.single-sidebar__detail {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-line);
}

.single-sidebar__detail:first-child {
  padding-top: 0;
}

.single-sidebar__detail:last-child {
  border-bottom: none;
}

.single-sidebar__detail-label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.single-sidebar__detail a {
  color: var(--color-primary);
  text-decoration: none;
}

.single-sidebar__detail a:hover {
  text-decoration: underline;
}

.single-sidebar__toc {
  background: var(--color-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
}

.single-sidebar__toc-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-ink);
  margin-bottom: var(--space-4);
}

.single-sidebar__toc-nav a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-muted);
  text-decoration: none;
  padding: var(--space-1) 0;
  border-left: 2px solid transparent;
  padding-left: var(--space-3);
  transition: all var(--duration-fast) var(--ease-default);
}

.single-sidebar__toc-nav a:hover,
.single-sidebar__toc-nav a.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

@media (max-width: 1023px) {
  .single-sidebar {
    display: none;
  }
}

/* --- Share Buttons --- */
.share-buttons {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-line);
}

.share-buttons__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
}

.share-buttons--vertical .share-buttons__list {
  display: flex;
  flex-direction: row;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.share-buttons--horizontal .share-buttons__list {
  display: flex;
  flex-direction: row;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease-default);
  text-decoration: none;
  padding: 0;
  font-size: 0;
  line-height: 1;
}

.share-btn svg {
  width: 18px;
  height: 18px;
}

.share-btn:hover {
  opacity: 0.85;
}

.share-btn--facebook { background: #1877F2; }
.share-btn--whatsapp { background: #25D366; }
.share-btn--linkedin { background: #0A66C2; }
.share-btn--twitter { background: var(--color-ink); }
.share-btn--copy { background: var(--color-muted); }

.share-btn--copied {
  background: var(--color-primary) !important;
}

/* Mobile share + author: only visible on small screens */
.single-mobile-share {
  margin-bottom: var(--space-8);
}

@media (min-width: 1024px) {
  .single-mobile-share {
    display: none;
  }
}

/* --- Author Card (sidebar + mobile) --- */
.single-sidebar__author {
  margin-top: var(--space-6);
}

.single-author {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--color-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.single-author__avatar-link {
  margin-bottom: var(--space-3);
}

.single-author__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
}

.single-author__name {
  display: block;
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-ink);
  text-decoration: none;
  margin-bottom: var(--space-2);
}

.single-author__name:hover {
  color: var(--color-primary);
}

.single-author__bio {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.single-author__cta {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-ink);
  color: var(--color-white);
  text-align: center;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-default);
}

.single-author__cta:hover {
  background: var(--color-primary);
}

/* --- Prev/Next Post Navigation --- */
.single-post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.single-post-nav__link {
  display: block;
  padding: var(--space-5);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-default);
}

.single-post-nav__link:hover {
  background: var(--color-soft);
  border-color: var(--color-primary);
}

.single-post-nav__dir {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.single-post-nav__title {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-ink);
  line-height: var(--leading-snug);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.single-post-nav__link--next {
  text-align: right;
}

@media (max-width: 639px) {
  .single-post-nav {
    grid-template-columns: 1fr;
  }
}

/* --- Below Content Section --- */
.single-below-content {
  padding-top: 0;
}

.single-below-content .container--narrow {
  max-width: 700px;
}

/* --- Related Articles --- */
.blog-related__title {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-ink);
  margin-bottom: var(--space-8);
}