/* ============================================
   FormatZ — Blog & Article Styles
   Premium editorial layer on top of design tokens
   ============================================ */

/* ---------- Reading progress bar ---------- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  z-index: var(--z-fixed);
  background: var(--gradient-primary);
  box-shadow: var(--glow-primary);
  transition: width 80ms linear;
}

/* ---------- Static header on blog/article pages ----------
   The shared .header is position:fixed + transparent (it only gets a
   solid background via the .scrolled class added by app.js). Article
   pages don't load app.js, so here we make the header STATIC: it sits
   in normal flow, scrolls away with the page and never overlaps text. */
.header {
  position: relative;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
}

/* ---------- Generic page wrapper ---------- */
.blog-main,
.article-main {
  padding-top: var(--space-8);
  padding-bottom: var(--space-24);
  position: relative;
}

/* ============================================
   BLOG INDEX
   ============================================ */
.blog-hero {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-12);
}

.blog-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--gradient-primary-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-5);
}
.blog-eyebrow svg { width: 16px; height: 16px; }

.blog-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-6xl);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}
.blog-title .grad {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* Category filter chips */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-12);
}

/* Featured card */
.blog-featured {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border-radius: var(--radius-3xl);
  overflow: hidden;
  background: var(--card-bg);
  border: var(--card-border);
  box-shadow: var(--card-shadow);
  margin-bottom: var(--space-12);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.blog-featured:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}
.blog-featured-media {
  position: relative;
  min-height: 340px;
  overflow: hidden;
}
.blog-featured-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.blog-featured:hover .blog-featured-media img { transform: scale(1.05); }
.blog-featured-body {
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.blog-featured-body .blog-card-title {
  font-size: var(--text-3xl);
}

/* Section title (per-format groups on the blog index) */
.blog-section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-2xl);
  margin: var(--space-16) 0 var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.blog-section-title::before {
  content: "";
  width: 6px;
  height: 1.05em;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  box-shadow: var(--glow-primary);
}

/* Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-8);
}

/* Article card */
.blog-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--card-bg);
  border: var(--card-border);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-accent);
}
.blog-card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-tertiary);
}
.blog-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.blog-card:hover .blog-card-media img { transform: scale(1.06); }

.blog-card-cat {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.blog-card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-3);
}
.blog-card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--text-primary);
}
.blog-card:hover .blog-card-title { color: var(--accent-primary); }
.blog-card-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  flex: 1;
}
.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}
.blog-card-meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.blog-card-meta svg { width: 14px; height: 14px; }

/* ============================================
   ARTICLE PAGE
   ============================================ */
.article-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 820px;
  margin: 0 auto;
}

/* Breadcrumb */
.article-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
}
.article-breadcrumb a { color: var(--text-tertiary); transition: color var(--transition-fast); }
.article-breadcrumb a:hover { color: var(--accent-primary); }
.article-breadcrumb svg { width: 14px; height: 14px; opacity: 0.6; }

/* Hero */
.article-cat {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--gradient-primary-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-5);
}
.article-cat svg { width: 16px; height: 16px; }

.article-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}

.article-deck {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-5);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-primary);
  margin-bottom: var(--space-8);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}
.article-meta .author {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-secondary);
  font-weight: 500;
}
.article-meta .avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--gradient-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  box-shadow: var(--glow-primary);
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: var(--space-2); }
.article-meta svg { width: 15px; height: 15px; }

/* Hero cover image */
.article-cover {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  margin-bottom: var(--space-10);
  box-shadow: var(--shadow-lg);
  background: var(--bg-tertiary);
}
.article-cover img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}
.article-cover figcaption,
.article-figure figcaption {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  padding: var(--space-3) var(--space-1) 0;
  text-align: center;
  font-style: italic;
}

/* ---------- Table of contents ---------- */
.article-toc {
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-10);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.article-toc-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
}
.article-toc-title svg { width: 16px; height: 16px; color: var(--accent-primary); }
.article-toc ol {
  list-style: none;
  counter-reset: toc;
  display: grid;
  gap: var(--space-2);
}
.article-toc li { counter-increment: toc; }
.article-toc a {
  display: flex;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.article-toc a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent-primary);
  font-weight: 600;
}
.article-toc a:hover { color: var(--accent-primary); transform: translateX(4px); }

/* ============================================
   PROSE (article body typography)
   ============================================ */
.prose {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
}
.prose > * + * { margin-top: var(--space-5); }

.prose h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-top: var(--space-12);
  scroll-margin-top: 100px;
  position: relative;
  padding-left: var(--space-5);
}
.prose h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 5px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  box-shadow: var(--glow-primary);
}
.prose h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-top: var(--space-8);
  scroll-margin-top: 100px;
}
.prose p { color: var(--text-secondary); }
.prose strong { color: var(--text-primary); font-weight: 600; }
.prose a:not(.btn) {
  color: var(--accent-primary);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--border-accent);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-fast);
}
.prose a:not(.btn):hover { text-decoration-color: var(--accent-primary); }

.prose ul, .prose ol { padding-left: var(--space-2); display: grid; gap: var(--space-3); }
.prose ul li, .prose ol li {
  position: relative;
  padding-left: var(--space-8);
  color: var(--text-secondary);
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: var(--space-2);
  top: 0.62em;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient-primary);
}
.prose ol { counter-reset: li; }
.prose ol li { counter-increment: li; }
.prose ol li::before {
  content: counter(li);
  position: absolute;
  left: 0;
  top: 0.05em;
  width: 24px; height: 24px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--gradient-primary-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  font-family: var(--font-mono);
}

.prose blockquote {
  margin: var(--space-8) 0;
  padding: var(--space-5) var(--space-6);
  border-left: 4px solid var(--accent-primary);
  background: var(--gradient-primary-subtle);
  border-radius: var(--radius-lg);
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--text-primary);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 0.15em 0.45em;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--accent-primary);
  border: 1px solid var(--border-primary);
}
.prose pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  background: #0b1020;
  color: #e2e8f0;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  border: 1px solid var(--border-secondary);
  line-height: var(--leading-normal);
}
.prose pre code { background: none; border: none; color: inherit; padding: 0; }

/* Figures inside body */
.article-figure {
  margin: var(--space-10) 0;
}
.article-figure img {
  width: 100%;
  height: auto;
  /* Keep in-body images a sensible banner height — never full-screen,
     even for tall/portrait source photos (crop instead of towering). */
  max-height: 460px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  background: var(--bg-tertiary);
}
.article-figure.bleed { margin-left: calc(var(--space-6) * -1); margin-right: calc(var(--space-6) * -1); }

/* ---------- Callouts ---------- */
.callout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-xl);
  margin: var(--space-8) 0;
  border: 1px solid var(--border-primary);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.callout-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: var(--radius-lg);
  display: grid; place-items: center;
}
.callout-icon svg { width: 22px; height: 22px; }
.callout-body { font-size: var(--text-base); color: var(--text-secondary); line-height: var(--leading-relaxed); }
.callout-body > * + * { margin-top: var(--space-2); }
.callout-title { font-weight: 700; color: var(--text-primary); font-family: var(--font-body); }

.callout.info { border-color: var(--border-accent); }
.callout.info .callout-icon { background: var(--gradient-primary-subtle); color: var(--accent-primary); }
.callout.tip { border-color: rgba(16,185,129,0.4); }
.callout.tip .callout-icon { background: rgba(16,185,129,0.12); color: var(--accent-tertiary); }
.callout.warning { border-color: rgba(245,158,11,0.4); }
.callout.warning .callout-icon { background: rgba(245,158,11,0.12); color: var(--accent-secondary); }

/* ---------- Pull quote ---------- */
.pullquote {
  position: relative;
  margin: var(--space-12) 0;
  padding: var(--space-8) var(--space-6) var(--space-6);
  text-align: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
  color: var(--text-primary);
}
.pullquote::before {
  content: "\201C";
  position: absolute;
  top: -0.2em;
  left: 50%;
  transform: translateX(-50%);
  font-size: 5rem;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Stat row ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-4);
  margin: var(--space-10) 0;
}
.stat-tile {
  text-align: center;
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-xl);
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
}
.stat-tile .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-4xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}
.stat-tile .lbl {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-8) 0;
}
.step {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.step:hover { border-color: var(--border-accent); transform: translateX(4px); }
.step .n {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--gradient-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  box-shadow: var(--glow-primary);
}
.step h3 { margin: 0 0 var(--space-1); font-family: var(--font-display); font-size: var(--text-lg); color: var(--text-primary); }
.step p { margin: 0; font-size: var(--text-base); color: var(--text-secondary); }

/* ---------- Comparison table ---------- */
.compare {
  width: 100%;
  margin: var(--space-8) 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-primary);
  font-size: var(--text-base);
}
.compare table { width: 100%; border-collapse: collapse; }
.compare th, .compare td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--border-primary);
}
.compare thead th {
  background: var(--gradient-primary-subtle);
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--text-sm);
}
.compare tbody tr:nth-child(even) { background: var(--bg-glass); }
.compare tbody tr:last-child td { border-bottom: none; }
.compare td:first-child { color: var(--text-primary); font-weight: 500; }
.compare .yes { color: var(--accent-tertiary); font-weight: 700; }
.compare .no { color: var(--text-muted); }

/* ---------- Key-value spec grid ---------- */
.specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
  margin: var(--space-8) 0;
}
.spec {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
}
.spec .k { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-tertiary); }
.spec .v { font-family: var(--font-display); font-weight: 600; color: var(--text-primary); margin-top: var(--space-1); }

/* ---------- Inline CTA to converter ---------- */
.article-cta {
  margin: var(--space-12) 0;
  padding: var(--space-10);
  border-radius: var(--radius-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-primary-subtle);
  border: 1px solid var(--border-accent);
}
.article-cta h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-2xl);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}
.article-cta p { color: var(--text-secondary); margin-bottom: var(--space-6); }

/* ---------- FAQ (self-contained accordion) ---------- */
.article-faq { margin: var(--space-12) 0; }
.afaq-item {
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  background: var(--bg-glass);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: border-color var(--transition-base);
}
.afaq-item.open { border-color: var(--border-accent); }
.afaq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--text-primary);
  cursor: pointer;
}
.afaq-q svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--accent-primary); transition: transform var(--transition-base); }
.afaq-item.open .afaq-q svg { transform: rotate(180deg); }
.afaq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.afaq-item.open .afaq-a { max-height: 600px; }
.afaq-a-inner {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ---------- Tags ---------- */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-10) 0;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-primary);
}
.article-tag {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ---------- Author / share box ---------- */
.article-end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6);
  border-radius: var(--radius-2xl);
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  margin: var(--space-10) 0;
}
.share-btns { display: flex; gap: var(--space-2); }
.share-btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}
.share-btn:hover { color: var(--accent-primary); border-color: var(--accent-primary); transform: translateY(-2px); }
.share-btn svg { width: 18px; height: 18px; }

/* ---------- Related ---------- */
.related-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-2xl);
  margin: var(--space-16) 0 var(--space-6);
  text-align: center;
}

/* ============================================
   Scroll reveal animation
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slower), transform var(--transition-slower);
}
.animate-on-scroll.is-visible,
.animate-on-scroll.visible {
  opacity: 1;
  transform: none;
}
.js-enabled .animate-on-scroll[data-delay="1"] { transition-delay: 60ms; }
.js-enabled .animate-on-scroll[data-delay="2"] { transition-delay: 120ms; }
.js-enabled .animate-on-scroll[data-delay="3"] { transition-delay: 180ms; }
.js-enabled .animate-on-scroll[data-delay="4"] { transition-delay: 240ms; }
.js-enabled .animate-on-scroll[data-delay="5"] { transition-delay: 300ms; }
/* No-JS / crawler fallback: always visible */
html:not(.js-enabled) .animate-on-scroll { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll { opacity: 1 !important; transform: none !important; }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 880px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured-media { min-height: 220px; }
  .article-figure.bleed { margin-left: 0; margin-right: 0; }
}
@media (max-width: 640px) {
  .blog-main, .article-main { padding-top: 84px; }
  .article-title { font-size: var(--text-4xl); }
  .blog-title { font-size: var(--text-5xl); }
  .prose { font-size: var(--text-base); }
  .blog-featured-body { padding: var(--space-6); }
  .article-end { flex-direction: column; align-items: flex-start; }
}

/* ============================================
   Blog hub: toolbar, search, filters, pagination
   ============================================ */
.blog-toolbar { display:flex; align-items:center; justify-content:space-between; gap:var(--space-4); flex-wrap:wrap; margin-bottom:var(--space-5); }
.blog-search { position:relative; flex:1; min-width:240px; max-width:540px; display:block; }
.blog-search svg { position:absolute; left:var(--space-4); top:50%; transform:translateY(-50%); width:18px; height:18px; color:var(--text-muted); pointer-events:none; }
.blog-search input { width:100%; padding:var(--space-3) var(--space-5) var(--space-3) calc(var(--space-4) + 28px); background:var(--input-bg); border:1px solid var(--input-border); border-radius:var(--radius-full); font-size:var(--text-base); color:var(--text-primary); font-family:var(--font-body); transition:all var(--transition-fast); }
.blog-search input::placeholder { color:var(--text-muted); }
.blog-search input:focus { outline:none; border-color:var(--accent-primary); box-shadow:0 0 0 3px rgba(59,130,246,.15); }
.blog-count { font-size:var(--text-sm); color:var(--text-tertiary); white-space:nowrap; }
.blog-filters { display:flex; flex-wrap:wrap; gap:var(--space-2); margin-bottom:var(--space-10); }
.blog-filters .chip { cursor:pointer; font-family:var(--font-body); border:1px solid var(--border-primary); }
.blog-pillars { display:inline-flex; gap:var(--space-1); padding:var(--space-1); background:var(--bg-glass); border:1px solid var(--border-primary); border-radius:var(--radius-full); margin-bottom:var(--space-5); }
.blog-pillar-btn { padding:var(--space-2) var(--space-5); border:none; background:transparent; color:var(--text-secondary); font-family:var(--font-display); font-weight:600; font-size:var(--text-sm); border-radius:var(--radius-full); cursor:pointer; transition:all var(--transition-fast); white-space:nowrap; }
.blog-pillar-btn:hover:not(.is-active) { color:var(--accent-primary); }
.blog-pillar-btn.is-active { background:var(--gradient-primary); color:#fff; box-shadow:var(--glow-primary); }
.blog-card-fmt { margin-left:auto; font-family:var(--font-mono); font-size:var(--text-xs); color:var(--text-tertiary); letter-spacing:.04em; }
.blog-card-meta { justify-content:space-between; }
.blog-empty { grid-column:1 / -1; text-align:center; padding:var(--space-16) var(--space-4); color:var(--text-tertiary); font-size:var(--text-lg); }
.blog-pagination { display:flex; justify-content:center; align-items:center; gap:var(--space-2); flex-wrap:wrap; margin-top:var(--space-12); }
.blog-page-btn { min-width:40px; height:40px; padding:0 var(--space-3); display:inline-flex; align-items:center; justify-content:center; border-radius:var(--radius-lg); border:1px solid var(--border-primary); background:var(--bg-glass); color:var(--text-secondary); font-family:var(--font-body); font-weight:500; cursor:pointer; transition:all var(--transition-fast); }
.blog-page-btn:hover:not(:disabled):not(.is-active) { border-color:var(--accent-primary); color:var(--accent-primary); transform:translateY(-1px); }
.blog-page-btn.is-active { background:var(--gradient-primary); color:#fff; border-color:transparent; box-shadow:var(--glow-primary); }
.blog-page-btn:disabled { opacity:.4; cursor:not-allowed; }
.blog-page-gap { color:var(--text-muted); padding:0 var(--space-1); }
@media (max-width:640px){
  .blog-toolbar { flex-direction:column; align-items:stretch; }
  .blog-search { max-width:none; }
  .blog-filters { flex-wrap:nowrap; overflow-x:auto; -webkit-overflow-scrolling:touch; padding-bottom:var(--space-2); }
  .blog-filters .chip { white-space:nowrap; }
}