/**
 * CODECURV BLOG & PROPRIETARY CONTENT ENGINE STYLES
 * High-craft editorial typography paired with drafting laboratory UI
 */

/* ==========================================================================
   1. BLOG HERO & DIRECTORY LAYOUT
   ========================================================================== */

.blog-hero-layout {
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.blog-category-filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
  flex-wrap: wrap;
  margin-top: var(--space-6, 24px);
  padding-bottom: var(--space-4, 16px);
  border-bottom: 1px solid var(--rule-subtle);
}

.blog-category-pill {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  background: var(--bg-canvas-subtle);
  border: 1px solid var(--rule-base);
  color: var(--ink-secondary);
  border-radius: var(--radius-xs);
  text-decoration: none;
  transition: all 120ms ease;
}

.blog-category-pill:hover,
.blog-category-pill.is-active {
  background: var(--ink-primary);
  color: var(--bg-canvas);
  border-color: var(--ink-primary);
}

[data-theme="dark"] .blog-category-pill:hover,
[data-theme="dark"] .blog-category-pill.is-active {
  background: #FFFFFF;
  color: #000000;
  border-color: #FFFFFF;
}

/* ==========================================================================
   2. FEATURED ARTICLE MONOGRAPH CARD
   ========================================================================== */

.blog-featured-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  background: var(--bg-sheet);
  border: 1px solid var(--rule-base);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  box-sizing: border-box;
  width: 100%;
  transition: border-color 140ms ease;
}

.blog-featured-card:hover {
  border-color: var(--rule-strong);
}

.blog-featured-media-slot {
  position: relative;
  background: var(--bg-carbon);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-right: 1px solid var(--rule-base);
}

.blog-featured-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 300ms var(--ease-spring);
}

.blog-featured-card:hover .blog-featured-img {
  transform: scale(1.02);
}

.blog-featured-fallback-wafer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8, 32px);
  color: var(--ink-inverted);
}

.blog-featured-content-slot {
  padding: var(--space-8, 32px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
}

.blog-featured-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4, 16px);
  border-top: 1px solid var(--rule-subtle);
  flex-wrap: wrap;
  gap: var(--space-3, 12px);
}

/* ==========================================================================
   3. RECENT ARTICLES GRID & CARDS
   ========================================================================== */

.blog-catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: var(--space-8, 32px);
  width: 100%;
  box-sizing: border-box;
}

.blog-card-standard {
  background: var(--bg-sheet);
  border: 1px solid var(--rule-base);
  padding: var(--space-6, 24px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
  transition: transform 140ms var(--ease-mechanical), border-color 140ms ease;
}

.blog-card-standard:hover {
  transform: translateY(-2px);
  border-color: var(--rule-strong);
}

.blog-card-thumb-slot {
  width: 100%;
  height: 180px;
  background: var(--bg-canvas-subtle);
  border: 1px solid var(--rule-subtle);
  margin-bottom: var(--space-4, 16px);
  overflow: hidden;
}

.blog-card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ==========================================================================
   4. ARTICLE MONOGRAPH & READING EXPERIENCE
   ========================================================================== */

.article-hero-blog {
  padding-top: var(--space-12, 48px);
  padding-bottom: var(--space-12, 48px);
  border-bottom: 1px solid var(--rule-base);
  position: relative;
}

.article-hero-media-wrapper {
  max-width: var(--container-reading, 720px);
  margin: var(--space-8, 32px) auto 0 auto;
  border: 1px solid var(--rule-base);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.article-hero-img {
  width: 100%;
  height: auto;
  display: block;
}

.article-reading-body {
  max-width: var(--container-reading, 720px);
  margin: var(--space-12, 48px) auto;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--ink-secondary);
}

.article-reading-body p {
  margin-bottom: var(--space-6, 24px);
}

.article-subheading {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1.28;
  color: var(--ink-primary);
  margin-top: var(--space-12, 48px);
  margin-bottom: var(--space-4, 16px);
  padding-top: var(--space-6, 24px);
  border-top: 1px solid var(--rule-subtle);
  scroll-margin-top: 80px;
}

h3.article-subheading {
  font-size: 1.35rem;
  border-top: none;
  padding-top: 0;
  margin-top: var(--space-8, 32px);
}

/* Table of Contents */
.toc-box {
  background: var(--bg-sheet);
  border: 1px solid var(--rule-base);
  border-left: 3px solid var(--ink-primary);
  padding: var(--space-6, 24px);
  margin: var(--space-8, 32px) 0 var(--space-12, 48px) 0;
}

.toc-heading {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--ink-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-4, 16px);
  display: block;
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2, 8px);
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-item-h3 {
  padding-left: var(--space-4, 16px);
  font-size: 0.8125rem;
}

.toc-link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--ink-secondary);
  text-decoration: none;
  transition: color 120ms ease;
}

.toc-link:hover {
  color: var(--vermilion);
}

/* Quick Answer Box */
.quick-answer-card {
  background: var(--bg-canvas-subtle);
  border: 1px solid var(--rule-base);
  border-left: 4px solid var(--vermilion);
  padding: var(--space-6, 24px);
  margin: var(--space-8, 32px) 0;
}

.quick-answer-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--vermilion);
  text-transform: uppercase;
  margin-bottom: var(--space-2, 8px);
  display: block;
}

/* Fenced Code & Primitives */
.code-fenced-block {
  background: var(--bg-carbon);
  color: #60A5FA;
  padding: var(--space-5, 20px);
  border: 1px solid var(--rule-dark);
  border-radius: var(--radius-none);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.55;
  margin: var(--space-6, 24px) 0;
}

.code-inline {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--bg-canvas-subtle);
  border: 1px solid var(--rule-subtle);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  color: var(--ink-primary);
}

.article-blockquote {
  background: var(--bg-canvas-subtle);
  border-left: 3px solid var(--vermilion);
  padding: var(--space-4, 16px) var(--space-6, 24px);
  margin: var(--space-6, 24px) 0;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--ink-primary);
}

.article-blockquote p {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.6;
}

.article-bullet-list,
.article-ordered-list {
  margin: var(--space-4, 16px) 0 var(--space-6, 24px) var(--space-6, 24px);
  display: flex;
  flex-direction: column;
  gap: var(--space-2, 8px);
}

.article-bullet-list { list-style: square; }
.article-ordered-list { list-style: decimal; }

.article-spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6, 24px) 0;
  font-size: 0.875rem;
}

.article-spec-table th {
  background: var(--bg-canvas-subtle);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--rule-base);
  padding: 10px 14px;
  text-align: left;
}

.article-spec-table td {
  border: 1px solid var(--rule-subtle);
  padding: 10px 14px;
}

.table-responsive-shell {
  width: 100%;
  overflow-x: auto;
  margin: var(--space-6, 24px) 0;
}

.article-link {
  color: var(--vermilion);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 120ms ease;
}

.article-link:hover {
  opacity: 0.8;
}

/* ==========================================================================
   5. RESPONSIVE MATRIX
   ========================================================================== */

@media (max-width: 992px) {
  .blog-featured-card {
    grid-template-columns: 1fr;
  }

  .blog-featured-media-slot {
    border-right: none;
    border-bottom: 1px solid var(--rule-base);
    min-height: 240px;
  }
}

@media (max-width: 430px) {
  .blog-featured-content-slot {
    padding: var(--space-6, 24px) var(--space-4, 16px);
  }

  .blog-card-standard {
    padding: var(--space-6, 24px) var(--space-4, 16px);
  }
}