/* ==========================================================================
   DESIGN 33 — BLOG STYLESHEET
   Shared across blog/index.html and all individual post pages
   ========================================================================== */

/* --------------------------------------------------------------------------
   READING PROGRESS BAR
   -------------------------------------------------------------------------- */
#blog-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent-terracotta);
  z-index: 9999;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   BLOG INDEX — HERO SECTION
   -------------------------------------------------------------------------- */
.blog-hero {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(3rem, 5vw, 4.5rem);
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 46, 36, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 46, 36, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.blog-hero .container { position: relative; z-index: 1; }

.blog-hero h1 {
  font-size: var(--fs-h1);
  letter-spacing: var(--tracking-hero);
  margin-bottom: var(--space-sm);
  max-width: 22ch;
}

.blog-hero p {
  font-size: var(--fs-lead);
  color: var(--text-secondary);
  max-width: 55ch;
  margin-bottom: 0;
}

.blog-hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.blog-post-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   CATEGORY FILTER PILLS
   -------------------------------------------------------------------------- */
.blog-categories {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.blog-cat-pill {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-medium);
  background: transparent;
  color: var(--text-secondary);
  cursor: default;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   BLOG INDEX — FEATURED HERO CARD
   -------------------------------------------------------------------------- */
.blog-featured-wrap {
  padding: 0 0 var(--space-lg);
  background: var(--bg-surface);
}

.blog-card--featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.blog-card--featured:hover {
  box-shadow: var(--shadow-elevated);
}

.blog-card--featured .blog-card-img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  display: block;
}

.blog-card--featured .blog-card-body {
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.blog-card--featured .blog-card-body::before {
  content: "";
  position: absolute;
  top: 2rem;
  bottom: 2rem;
  left: 0;
  width: 3px;
  background: var(--accent-terracotta);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.blog-card--featured .blog-card-title {
  font-size: var(--fs-h2);
  letter-spacing: var(--tracking-section);
  line-height: var(--leading-sub);
  margin-bottom: var(--space-sm);
}

.blog-card--featured .blog-card-excerpt {
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.blog-card--featured .featured-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-mono-wide);
  text-transform: uppercase;
  color: var(--accent-terracotta);
  margin-bottom: var(--space-sm);
}

/* --------------------------------------------------------------------------
   BLOG INDEX — STANDARD GRID
   -------------------------------------------------------------------------- */
.blog-section-bg {
  background: var(--bg-surface);
  padding-bottom: var(--space-3xl);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  padding-top: var(--space-lg);
}

.blog-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.blog-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--bg-surface-alt);
  display: block;
}

.blog-card-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
  flex-wrap: wrap;
}

.blog-card-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
}

.blog-card-readtime {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
}

.blog-card-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border-medium);
  flex-shrink: 0;
}

.blog-card-category {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--accent-terracotta);
  font-weight: 600;
}

.blog-card-title {
  font-size: var(--fs-h3);
  letter-spacing: var(--tracking-card);
  margin-bottom: var(--space-xs);
  line-height: var(--leading-card);
}

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

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

.blog-card-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-body);
  margin-bottom: var(--space-md);
  flex: 1;
}

.blog-card-link {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--accent-terracotta);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}

.blog-card-link:hover { text-decoration: underline; }

/* --------------------------------------------------------------------------
   POST PAGES — HERO
   -------------------------------------------------------------------------- */
.post-hero {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(2rem, 4vw, 3rem);
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.post-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 46, 36, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 46, 36, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.post-hero .container { position: relative; z-index: 1; }
.post-hero .mono-tag { margin-bottom: var(--space-md); display: inline-block; }

.post-hero h1 {
  font-size: var(--fs-h1);
  letter-spacing: var(--tracking-hero);
  margin-bottom: var(--space-md);
  max-width: 18ch;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.post-meta-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border-medium);
  flex-shrink: 0;
}

.post-hero-img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-top: var(--space-2xl);
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   POST PAGES — CONTENT
   -------------------------------------------------------------------------- */
.post-content-wrap {
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}

.post-content-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 46, 36, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 46, 36, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.post-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-3xl);
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--container-gutter);
  position: relative;
  z-index: 1;
  align-items: start;
}

.post-watermark {
  position: absolute;
  top: 8%;
  right: -60px;
  width: 560px;
  height: 560px;
  opacity: 0.035;
  pointer-events: none;
  background: url('../assets/brand/design33-icon-disc.webp') center/contain no-repeat;
}

.post-content {
  min-width: 0;
}

.post-content h2 {
  font-size: var(--fs-h2);
  letter-spacing: var(--tracking-section);
  margin: var(--space-2xl) 0 var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.post-content h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }

.post-content h3 {
  font-size: var(--fs-h3);
  letter-spacing: var(--tracking-sub);
  margin: var(--space-xl) 0 var(--space-sm);
}

.post-content p {
  font-size: var(--fs-lead);
  line-height: var(--leading-prose);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.post-content strong { color: var(--text-primary); }

.post-content ul, .post-content ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.post-content li {
  font-size: var(--fs-lead);
  line-height: var(--leading-prose);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.post-content blockquote {
  border-left: 3px solid var(--accent-terracotta);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  background: var(--bg-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.post-content blockquote p {
  font-family: var(--font-editorial);
  font-style: italic;
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: 0;
}

.post-content .highlight-box {
  background: var(--accent-terracotta-subtle);
  border: 1px solid rgba(194, 83, 43, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.post-content .highlight-box h3 {
  margin-top: 0;
  color: var(--accent-terracotta);
}

.post-content .stat-callout {
  background: var(--bg-dark);
  color: var(--text-inverse);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xl) 0;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.post-content .stat-callout .stat-number {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--accent-terracotta-vivid);
  line-height: 1;
  flex-shrink: 0;
}

.post-content .stat-callout .stat-label {
  font-size: var(--text-base);
  color: var(--text-inverse-muted);
  line-height: var(--leading-body);
  margin: 0;
}

/* Cost comparison cards */
.post-content .cost-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.post-content .cost-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.post-content .cost-card.bad {
  background: var(--color-error-subtle);
  border-color: rgba(220, 38, 38, 0.2);
}

.post-content .cost-card.good {
  background: var(--color-success-subtle);
  border-color: rgba(22, 163, 74, 0.2);
}

.post-content .cost-card h4 {
  margin: 0 0 var(--space-xs);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-mono);
}

.post-content .cost-card.bad h4 { color: var(--color-error); }
.post-content .cost-card.good h4 { color: var(--color-success); }

.post-content .cost-card .price {
  font-size: var(--fs-h2);
  font-weight: 800;
  margin-bottom: var(--space-sm);
}

.post-content .cost-card ul { padding-left: var(--space-sm); margin: 0; }
.post-content .cost-card li { font-size: var(--text-sm); margin-bottom: 4px; }

/* Comparison table */
.post-content .comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-xl) 0;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.post-content .comparison-table th {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
}

.post-content .comparison-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  line-height: var(--leading-body);
}

.post-content .comparison-table tr:last-child td { border-bottom: none; }
.post-content .comparison-table tr:nth-child(even) td { background: var(--bg-surface-alt); }
.post-content .comparison-table .good-cell { color: var(--color-success); font-weight: 600; }
.post-content .comparison-table .bad-cell { color: var(--color-error); font-weight: 600; }

/* Checklist / step list */
.post-content .checklist {
  list-style: none;
  padding-left: 0;
  margin: var(--space-xl) 0;
}

.post-content .checklist li {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: var(--text-base);
}

.post-content .checklist li:last-child { border-bottom: none; }

.post-content .checklist li .check-icon {
  color: var(--accent-terracotta);
  font-weight: 700;
  flex-shrink: 0;
  min-width: 1.5rem;
}

/* Price table */
.post-content .price-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-xl) 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.post-content .price-table th {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
}

.post-content .price-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: top;
  line-height: var(--leading-body);
}

.post-content .price-table tr:last-child td { border-bottom: none; }
.post-content .price-table tr:nth-child(even) td { background: var(--bg-surface-alt); }
.post-content .price-table .price-cell { font-weight: 700; color: var(--text-primary); white-space: nowrap; }
.post-content .price-table .highlight-row td { background: var(--accent-terracotta-subtle); font-weight: 600; }

/* --------------------------------------------------------------------------
   TABLE OF CONTENTS SIDEBAR
   -------------------------------------------------------------------------- */
.blog-toc {
  position: sticky;
  top: 5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.blog-toc-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.blog-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.blog-toc a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  line-height: var(--leading-compact);
  display: block;
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: var(--space-xs);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   AUTHOR CARD
   -------------------------------------------------------------------------- */
.author-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-top: var(--space-2xl);
}

.author-card img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-card .name { font-weight: 700; font-size: var(--text-base); }
.author-card .role { font-size: var(--text-sm); color: var(--text-tertiary); margin-top: 2px; }

/* --------------------------------------------------------------------------
   RELATED POSTS SECTION
   -------------------------------------------------------------------------- */
.post-related {
  background: var(--bg-surface);
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-subtle);
}

.post-related .section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
  display: block;
}

.post-related h2 {
  font-size: var(--fs-h2);
  letter-spacing: var(--tracking-section);
  margin-bottom: var(--space-2xl);
}

.post-related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* --------------------------------------------------------------------------
   END-OF-POST CTA PANEL
   -------------------------------------------------------------------------- */
.post-cta {
  background: var(--bg-dark);
  padding: var(--space-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.post-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.post-cta .container { position: relative; z-index: 1; }

.post-cta h2 {
  color: var(--text-inverse);
  font-size: var(--fs-h2);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--tracking-section);
}

.post-cta p {
  color: var(--text-inverse-muted);
  margin-bottom: var(--space-lg);
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
  font-size: var(--fs-lead);
  line-height: var(--leading-body);
}

/* --------------------------------------------------------------------------
   RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .post-layout {
    grid-template-columns: 1fr;
  }
  .blog-toc { display: none; }
}

@media (max-width: 768px) {
  .blog-card--featured {
    grid-template-columns: 1fr;
  }
  .blog-card--featured .blog-card-img {
    min-height: 220px;
    height: 220px;
  }
  .post-related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .blog-hero h1 { max-width: 100%; }
  .post-content .cost-comparison { grid-template-columns: 1fr; }
  .post-hero h1 { max-width: 100%; }
  .post-content .stat-callout { flex-direction: column; text-align: center; }
  .post-content .comparison-table { font-size: var(--text-xs); }
  .post-content .comparison-table td,
  .post-content .comparison-table th { padding: var(--space-xs) var(--space-sm); }
}