/* ===========================
   blog.css
   Single post + archive (category, tag, search, home).
   Reuses utilities.css (.container, .btn, .section*, .faq-*, .breadcrumb).
   =========================== */

/* ===========================
   Reading progress bar
   =========================== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  z-index: 101;
  pointer-events: none;
}

.reading-progress-bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.08s linear;
  box-shadow: 0 0 8px rgba(198, 40, 40, 0.4);
}

/* ===========================
   Archive header (category/tag/search/home)
   =========================== */
.blog-archive-header {
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.blog-archive-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-top: 6px;
}

.blog-archive-desc {
  color: var(--light-text);
  font-size: 15px;
  margin-top: 10px;
  max-width: 680px;
  line-height: 1.7;
}

.blog-archive-desc p { margin: 0 0 10px; }
.blog-archive-desc p:last-child { margin: 0; }

.blog-search {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 18px;
  max-width: 560px;
  transition: all var(--transition);
}

.blog-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(198, 40, 40, 0.12);
}

.blog-search svg {
  color: var(--light-text);
  flex-shrink: 0;
}

.blog-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
  font-family: inherit;
}

.blog-search input::placeholder { color: var(--light-text); }

.blog-search .btn {
  padding: 10px 18px;
  font-size: 13.5px;
  border-radius: 999px;
}

.blog-search-summary {
  margin-bottom: 24px;
  color: var(--light-text);
  font-size: 14.5px;
}

/* ===========================
   Blog grid (archive, search, related)
   =========================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.blog-grid--3 { grid-template-columns: repeat(3, 1fr); }

.blog-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.blog-card-media {
  aspect-ratio: 16 / 10;
  background: var(--bg);
  overflow: hidden;
  display: block;
  position: relative;
}

.blog-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.blog-card-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--border);
}

.blog-card-placeholder svg { width: 48px; height: 48px; }

.blog-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.blog-card-category {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  text-transform: uppercase;
  width: fit-content;
}

.blog-card-category:hover { color: var(--accent); }

.blog-card-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  letter-spacing: -0.2px;
}

.blog-card-title a { color: inherit; }
.blog-card-title a:hover { color: var(--primary); }

.blog-card-excerpt {
  font-size: 14px;
  color: var(--light-text);
  line-height: 1.65;
  flex: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--light-text);
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}

.blog-card-dot { opacity: 0.6; }

/* ===========================
   Pagination
   =========================== */
.navigation.pagination,
.wp-pagenavi {
  display: flex;
  justify-content: center;
  margin: 56px 0 0;
}

.pagination .nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.pagination .page-numbers {
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
}

.pagination .page-numbers:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.pagination .page-numbers.current {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(198, 40, 40, 0.32);
}

.pagination .page-numbers.dots {
  background: transparent;
  border: none;
  color: var(--light-text);
}

/* ===========================
   Single blog post
   =========================== */
.single-blog {
  padding: 8px 0 32px;
}

.single-blog-header {
  max-width: 1080px;
  margin: 0 auto 40px;
  text-align: left;
}

.single-blog-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--primary);
  padding: 6px 14px;
  background: rgba(198, 40, 40, 0.08);
  border-radius: 999px;
  margin-bottom: 16px;
}

.single-blog-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
  letter-spacing: -0.6px;
  margin-bottom: 22px;
}

.single-blog-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--light-text);
  flex-wrap: wrap;
  justify-content: flex-start;
}

.single-blog-author {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.single-blog-author img {
  border-radius: 50%;
  width: 28px;
  height: 28px;
}

.single-blog-dot { opacity: 0.5; }

.single-blog-feature {
  margin-top: 36px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.single-blog-feature img { display: block; width: 100%; height: auto; }

/* ===========================
   Single layout — TOC sidebar + content
   =========================== */
.single-blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 56px;
  align-items: stretch; /* lets the sidebar match content height so the TOC can stick */
  max-width: 1080px;
  margin: 0 auto;
}

.single-blog-layout.no-toc {
  grid-template-columns: minmax(0, 1fr);
}

/* TOC sidebar (right column) — full height so its sticky child can travel */
.single-blog-sidebar { position: relative; }

.blog-toc {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  scrollbar-width: thin;
}

.blog-toc-inner {
  padding: 22px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.blog-toc-heading {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: 14px;
}

.blog-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.blog-toc-item a {
  display: block;
  padding: 7px 12px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--light-text);
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  transition: all 0.2s ease;
}

.blog-toc-item a:hover {
  color: var(--text);
  background: var(--bg);
}

.blog-toc-item.is-active a {
  color: var(--primary);
  border-left-color: var(--primary);
  background: rgba(198, 40, 40, 0.04);
  font-weight: 600;
}

.blog-toc-l3 a { padding-left: 26px; font-size: 13px; }

/* ===========================
   Single post content
   =========================== */
.single-blog-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  min-width: 0;
}

.single-blog-content > * + * { margin-top: 1.2em; }

.single-blog-content p {
  color: #374151;
  font-size: 16.5px;
  line-height: 1.85;
}

.single-blog-content h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-top: 2em;
  scroll-margin-top: 96px;
  letter-spacing: -0.3px;
}

.single-blog-content h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--text);
  margin-top: 1.6em;
  scroll-margin-top: 96px;
}

.single-blog-content h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-top: 1.4em;
}

.single-blog-content a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(198, 40, 40, 0.35);
  text-underline-offset: 3px;
}

.single-blog-content a:hover {
  text-decoration-color: var(--primary);
}

.single-blog-content ul,
.single-blog-content ol {
  padding-left: 1.4em;
  color: #374151;
}

.single-blog-content li { margin: 0.4em 0; }

.single-blog-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--white);
  padding: 18px 24px;
  margin: 1.6em 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.single-blog-content blockquote p:last-child { margin: 0; }

.single-blog-content img,
.single-blog-content figure {
  border-radius: var(--radius-md);
  margin: 1.6em 0;
}

.single-blog-content figure img { margin: 0; }

.single-blog-content figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--light-text);
  margin-top: 8px;
  font-style: italic;
}

.single-blog-content code {
  background: rgba(198, 40, 40, 0.07);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
  font-family: 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;
}

.single-blog-content pre {
  background: #1A1F2E;
  color: #E2E8F0;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.65;
  margin: 1.6em 0;
}

.single-blog-content pre code {
  background: none;
  color: inherit;
  padding: 0;
}

.single-blog-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
}

.single-blog-content th,
.single-blog-content td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
}

.single-blog-content th {
  background: var(--bg);
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* ===========================
   Tags, FAQ, Author
   =========================== */
.single-blog-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.single-blog-tags-label {
  font-size: 13px;
  color: var(--light-text);
  font-weight: 600;
  margin-right: 6px;
}

.single-blog-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--light-text);
  font-weight: 500;
  transition: all var(--transition);
}

.single-blog-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.blog-faq { margin-top: 56px; }

/* ===========================
   Empty state
   =========================== */
.blog-empty {
  text-align: center;
  padding: 96px 0;
  max-width: 520px;
  margin: 0 auto;
}

.blog-empty .section-subtitle {
  margin: 12px auto 24px;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .single-blog-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .single-blog-sidebar {
    display: none; /* TOC hidden on tablet — too narrow for sticky sidebar */
  }

  .single-blog-title { font-size: 36px; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .blog-archive-header { padding: 28px 0 24px; margin-bottom: 28px; }
  .blog-archive-title { font-size: 28px; }
  .blog-search { flex-wrap: wrap; }
  .blog-search input { min-width: 0; }

  .single-blog-title { font-size: 28px; }
  .single-blog-content { font-size: 16px; }
  .single-blog-content h2 { font-size: 24px; }
  .single-blog-content h3 { font-size: 19px; }
  .single-blog-content pre { padding: 14px 16px; font-size: 12.5px; }
}

@media (max-width: 520px) {
  .blog-grid { grid-template-columns: 1fr; gap: 18px; }
  .blog-card-body { padding: 18px; }
  .blog-card-title { font-size: 17px; }
  .single-blog-title { font-size: 24px; }
}