/* ==========================================================================
   STRUKTTO — Engineering Blog & Editorial Stylesheet
   Estilo: Linear / Vercel / Procore (High-Density ConTech Editorial)
   ========================================================================== */

/* 1. Barra de progreso de lectura superior */
#readingProgressBar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #5DB89A 0%, #3D997A 100%);
  width: 0%;
  z-index: 10000;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px rgba(93, 184, 154, 0.6);
}

/* 2. Hero del Blog (Catálogo) */
.blog-hero {
  padding: 120px 0 50px;
  background: radial-gradient(circle at 50% 0%, rgba(93, 184, 154, 0.08) 0%, transparent 60%),
              var(--bg-canvas);
  border-bottom: 1px solid var(--border-tech);
  text-align: center;
}

.blog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(93, 184, 154, 0.12);
  border: 1px solid rgba(93, 184, 154, 0.35);
  color: var(--color-mint-dark);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.blog-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  color: var(--text-navy);
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 860px;
  margin: 0 auto 16px;
}

.blog-hero-subtitle {
  font-size: 1.12rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 3. Filtros de Categorías */
.blog-filters-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 24px 0 10px;
}

.blog-filter-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-tech);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-tech);
  font-family: inherit;
}

.blog-filter-btn:hover {
  border-color: var(--color-mint);
  color: var(--color-navy);
  background: #f0fdf4;
}

.blog-filter-btn.active {
  background: var(--color-navy);
  color: #ffffff;
  border-color: var(--color-navy);
  box-shadow: 0 4px 14px rgba(27, 43, 58, 0.2);
}

/* 4. Grid de Artículos */
.blog-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
  padding: 40px 0 80px;
}

@media (max-width: 640px) {
  .blog-posts-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s, border-color 0.25s;
  box-shadow: var(--shadow-card);
  position: relative;
}

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

.blog-card-media {
  height: 200px;
  background: linear-gradient(135deg, #1B2B3A 0%, #0F172A 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.blog-card-media-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(93, 184, 154, 0.2) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: 0.6;
}

.blog-card-badge-floating {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #5DB89A;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  z-index: 2;
}

.blog-card-time {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(0, 0, 0, 0.4);
  padding: 3px 8px;
  border-radius: 4px;
  z-index: 2;
}

.blog-card-visual-symbol {
  font-size: 3rem;
  color: rgba(93, 184, 154, 0.9);
  z-index: 1;
  transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-visual-symbol {
  transform: scale(1.12);
}

/* Ilustraciones Técnicas Vectoriales de Portada */
.blog-cover-illustration {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.cover-svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.blog-card:hover .cover-svg {
  transform: scale(1.04);
}

.blog-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.blog-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-navy);
  line-height: 1.35;
  margin-bottom: 10px;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--color-mint-dark);
}

.blog-card-excerpt {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-tech);
}

.blog-author-mini {
  display: flex;
  align-items: center;
  gap: 10px;
}

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--color-navy);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid rgba(93, 184, 154, 0.4);
  overflow: hidden;
  flex-shrink: 0;
}

.author-avatar-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  background-color: var(--color-navy);
  border: 1px solid rgba(93, 184, 154, 0.35);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.author-name-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-navy);
}

.author-role-subtext {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.blog-card-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-mint-dark);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  background: rgba(93, 184, 154, 0.08);
  border: 1px solid rgba(93, 184, 154, 0.25);
  transition: all 0.2s ease;
  cursor: pointer;
}

.blog-card-read-more:hover {
  background: var(--color-mint);
  color: #0F1F2C;
  border-color: var(--color-mint);
  transform: translateX(3px);
}

/* ==========================================================================
   5. Estructura del Artículo Individual (Procore/Linear Editorial)
   ========================================================================== */
.article-page {
  padding-top: 100px;
  background-color: var(--bg-canvas);
}

.article-header-section {
  padding: 40px 0 36px;
  background: linear-gradient(180deg, rgba(93, 184, 154, 0.05) 0%, transparent 100%);
  border-bottom: 1px solid var(--border-tech);
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.article-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.article-breadcrumb a:hover {
  color: var(--color-mint-dark);
}

.article-breadcrumb-sep {
  color: var(--border-strong);
}

.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  background: rgba(93, 184, 154, 0.12);
  border: 1px solid rgba(93, 184, 154, 0.35);
  color: var(--color-mint-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.article-title-main {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.8vw, 2.85rem);
  font-weight: 800;
  color: var(--text-navy);
  line-height: 1.2;
  letter-spacing: -0.03em;
  max-width: 900px;
  margin-bottom: 18px;
}

.article-lead-text {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 820px;
  margin-bottom: 28px;
}

.article-author-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--border-tech);
}

.article-author-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.article-author-avatar-large {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1B2B3A 0%, #3D997A 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-author-avatar-img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: cover;
  background-color: var(--color-navy);
  border: 1.5px solid rgba(93, 184, 154, 0.4);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
  flex-shrink: 0;
}

.article-author-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-navy);
}

.article-author-credential {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.article-share-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-tech);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-tech);
}

.article-share-btn:hover {
  border-color: var(--color-mint);
  color: var(--color-navy);
  background: #f0fdf4;
}

.article-share-btn.copied {
  background: #22c55e;
  color: #ffffff;
  border-color: #22c55e;
}

/* 6. Layout de Contenido Principal + Sidebar (Table of Contents) */
.article-layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 48px;
  padding: 48px 0 80px;
  align-items: flex-start;
}

@media (max-width: 992px) {
  .article-layout-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Columna de Contenido Editorial (65ch - 75ch) */
.article-prose {
  max-width: 72ch;
  font-size: 1.08rem;
  line-height: 1.82;
  color: #1e293b;
}

.article-prose p {
  margin-bottom: 22px;
}

.article-prose h2 {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-navy);
  margin: 44px 0 16px;
  line-height: 1.3;
  letter-spacing: -0.02em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-tech);
  scroll-margin-top: 100px;
}

.article-prose h3 {
  font-family: var(--font-heading);
  font-size: 1.32rem;
  font-weight: 700;
  color: #1E3A5F;
  margin: 32px 0 14px;
  line-height: 1.35;
  scroll-margin-top: 100px;
}

.article-prose ul, .article-prose ol {
  margin: 0 0 24px 24px;
  padding: 0;
}

.article-prose li {
  margin-bottom: 10px;
  line-height: 1.7;
}

.article-prose strong {
  color: #0F172A;
  font-weight: 700;
}

.article-prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: #f1f5f9;
  color: #0369a1;
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid #e2e8f0;
}

/* Bloques de Fórmula Matemática y Ecuaciones */
.math-formula-box {
  margin: 28px 0;
  padding: 22px 24px;
  background: linear-gradient(135deg, #0F1F2C 0%, #162836 100%) !important;
  border-radius: 14px;
  border: 1px solid rgba(93, 184, 154, 0.35);
  color: #ffffff !important;
  box-shadow: 0 8px 24px -4px rgba(15, 31, 44, 0.18);
  position: relative;
  overflow: hidden;
}

.math-formula-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  padding-bottom: 10px;
  flex-wrap: wrap;
}

.math-formula-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5DB89A !important;
}

.math-formula-caption {
  font-size: 0.84rem;
  color: #E2E8F0 !important;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  line-height: 1.55;
}

.math-formula-box strong,
.math-formula-caption strong {
  color: #5DB89A !important;
  font-weight: 700 !important;
}

.math-equation sub,
.math-equation sup {
  color: inherit !important;
}

/* ==========================================================================
   CSS Math Engine (Native, Zero-Lag, 100% Reliable across Devices)
   ========================================================================== */
.math-formula-display {
  display: block !important;
  text-align: center !important;
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch !important;
  max-width: 100% !important;
  padding: 16px 8px !important;
  font-family: var(--font-heading), 'JetBrains Mono', system-ui, sans-serif !important;
  box-sizing: border-box !important;
  color: #ffffff !important;
}

.math-equation {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 10px !important;
  font-size: clamp(0.95rem, 3.8vw, 1.35rem) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  white-space: nowrap !important;
  margin: 0 auto !important;
}

.math-equation span {
  color: #ffffff;
}

.math-metric {
  color: #5DB89A !important;
  font-weight: 800 !important;
  letter-spacing: -0.01em !important;
}

.math-equal {
  color: #94A3B8 !important;
  font-weight: 600 !important;
}

.math-term {
  color: #FFFFFF !important;
}

.math-op {
  color: #5DB89A !important;
  font-weight: 700 !important;
}

.math-paren-group {
  display: inline-flex !important;
  align-items: center !important;
  gap: 4px !important;
  color: #FFFFFF !important;
}

.math-paren {
  font-size: 1.3em !important;
  color: #94A3B8 !important;
  font-weight: 400 !important;
}

.math-fraction {
  display: inline-flex !important;
  flex-direction: column !important;
  align-items: center !important;
  vertical-align: middle !important;
  padding: 0 4px !important;
}

.math-num {
  padding: 0 8px 4px !important;
  border-bottom: 2px solid #5DB89A !important;
  color: #FFFFFF !important;
  font-size: 0.95em !important;
  font-weight: 700 !important;
  text-align: center !important;
  width: 100% !important;
}

.math-den {
  padding: 4px 8px 0 !important;
  color: #E2E8F0 !important;
  font-size: 0.88em !important;
  font-weight: 600 !important;
  text-align: center !important;
  width: 100% !important;
}

.math-frac-sm .math-num,
.math-frac-sm .math-den {
  padding-left: 4px !important;
  padding-right: 4px !important;
  font-size: 0.82em !important;
}

/* Tablas Técnicas de Ingeniería */
.tech-table-wrapper,
.table-responsive {
  margin: 24px 0 32px;
  border-radius: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border-tech);
  box-shadow: var(--shadow-card);
  background: #ffffff;
  max-width: 100%;
  position: relative;
}

.tech-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.tech-table th {
  background: #0F1F2C;
  color: #ffffff;
  font-weight: 700;
  padding: 12px 14px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: none;
  white-space: nowrap;
}

.tech-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #f1f5f9;
  color: #334155;
  line-height: 1.45;
}

.tech-table tr:nth-child(even) td {
  background-color: #f8fafc;
}

.tech-table tr:hover td {
  background-color: #f0fdf4;
}

.tech-table .total-row td {
  background: rgba(93, 184, 154, 0.12) !important;
  font-weight: 800;
  color: var(--color-navy);
  border-top: 2px solid var(--color-mint);
  font-size: 0.95rem;
}

.tech-table .num-cell {
  text-align: right;
  font-family: var(--font-mono);
}

/* Callouts de Ingeniería */
.callout-pro-tip {
  margin: 28px 0;
  padding: 20px 22px;
  border-radius: 12px;
  background: #f0fdf4;
  border-left: 4px solid var(--color-mint);
  border-top: 1px solid #dcfce7;
  border-right: 1px solid #dcfce7;
  border-bottom: 1px solid #dcfce7;
}

.callout-pro-tip-title,
.callout-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-mint-dark);
  margin-bottom: 8px;
}

.callout-warning {
  margin: 28px 0;
  padding: 20px 22px;
  border-radius: 12px;
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  border-top: 1px solid #fef3c7;
  border-right: 1px solid #fef3c7;
  border-bottom: 1px solid #fef3c7;
}

.callout-warning-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  color: #b45309;
  margin-bottom: 8px;
}

/* 7. Sidebar Sticky: Tabla de Contenidos (Table of Contents) */
.toc-sidebar,
.toc-sticky-box {
  position: sticky;
  top: 96px;
  background: var(--bg-surface);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.toc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-navy);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-tech);
}

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

.toc-link {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 5px 8px;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all 0.2s ease;
  line-height: 1.35;
}

.toc-link:hover {
  color: var(--color-mint-dark);
  background: rgba(93, 184, 154, 0.06);
}

.toc-link.active {
  color: var(--color-navy);
  font-weight: 700;
  border-left-color: var(--color-mint);
  background: rgba(93, 184, 154, 0.12);
}

/* 8. Tarjeta de Conversión al Final del Artículo (CTA) */
.blog-conversion-card {
  margin: 50px 0 30px;
  padding: 44px 36px;
  background: radial-gradient(circle at 80% 20%, rgba(93, 184, 154, 0.18) 0%, transparent 60%),
              linear-gradient(135deg, #0F1F2C 0%, #162836 100%);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(93, 184, 154, 0.35);
  box-shadow: 0 20px 48px -8px rgba(15, 31, 44, 0.3);
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-conversion-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(93, 184, 154, 0.15);
  border: 1px solid rgba(93, 184, 154, 0.4);
  color: #5DB89A;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.blog-conversion-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.15rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
  max-width: 680px;
  margin: 0 auto 12px;
}

.blog-conversion-subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 580px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

.blog-conversion-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-blog-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 10px;
  background: #5DB89A;
  color: #0F1F2C;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.22s ease;
  box-shadow: 0 4px 16px rgba(93, 184, 154, 0.35);
}

.btn-blog-primary:hover {
  background: #4ea88a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(93, 184, 154, 0.45);
}

.btn-blog-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.22s ease;
}

.btn-blog-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

/* ==========================================================================
   8.5. Componentes Móviles de Artículo (Ocultos en Desktop)
   ========================================================================== */
.article-toc-mobile {
  display: none;
}

.table-scroll-hint {
  display: none;
}

/* ==========================================================================
   9. Optimizaciones Móviles Rigurosas (Vertical Mobile & Small Screens < 768px)
   ========================================================================== */
@media (max-width: 768px) {
  .article-page {
    padding-top: 72px;
    overflow-x: clip;
  }

  .article-header-section {
    padding: 24px 0 20px;
  }

  .article-breadcrumb {
    font-size: 0.78rem;
    margin-bottom: 12px;
  }

  .article-category-badge {
    font-size: 0.75rem;
    padding: 4px 10px;
    margin-bottom: 14px;
  }

  .article-title-main {
    font-size: clamp(1.65rem, 5vw, 2.75rem) !important;
    line-height: 1.2 !important;
    margin-bottom: 16px !important;
    word-break: break-word !important;
    overflow-wrap: break-word !important;
  }

  .article-lead-text {
    font-size: 1.05rem !important;
    line-height: 1.65 !important;
    margin-bottom: 22px !important;
  }

  .article-author-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 16px;
  }

  .article-share-group {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }

  .article-share-btn {
    padding: 6px 12px;
    font-size: 0.76rem;
  }

  .article-layout-grid {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: 1fr !important;
    gap: 0 !important;
    padding: 20px 0 48px !important;
    width: 100% !important;
  }

  .article-sidebar {
    display: none !important;
  }

  .article-toc-mobile {
    display: block !important;
    width: 100% !important;
    margin: 0 0 28px 0 !important;
    border: 1px solid var(--border-tech) !important;
    border-radius: 12px !important;
    background: var(--bg-surface) !important;
    overflow: hidden !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04) !important;
  }

  .toc-mobile-summary {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 13px 16px !important;
    cursor: pointer !important;
    user-select: none !important;
    list-style: none !important;
    background: rgba(93, 184, 154, 0.08) !important;
    transition: background 0.2s ease !important;
  }

  .toc-mobile-summary::-webkit-details-marker {
    display: none !important;
  }

  .article-toc-mobile[open] .toc-mobile-summary {
    border-bottom: 1px solid var(--border-tech) !important;
    background: rgba(93, 184, 154, 0.14) !important;
  }

  .toc-mobile-title {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: 0.84rem !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
    color: var(--color-mint-dark) !important;
  }

  .toc-chevron {
    display: inline-flex !important;
    align-items: center !important;
    color: var(--text-muted) !important;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
  }

  .article-toc-mobile[open] .toc-chevron {
    transform: rotate(180deg) !important;
    color: var(--color-mint-dark) !important;
  }

  .toc-mobile-content {
    padding: 12px 14px 16px !important;
    background: #ffffff !important;
  }

  .toc-mobile-content .toc-list {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
  }

  .toc-mobile-content .toc-link {
    display: block !important;
    font-size: 0.9rem !important;
    color: var(--text-navy) !important;
    text-decoration: none !important;
    padding: 9px 12px !important;
    border-radius: 8px !important;
    background: #f8fafc !important;
    border-left: 3px solid transparent !important;
    line-height: 1.4 !important;
    transition: all 0.2s ease !important;
  }

  .toc-mobile-content .toc-link:hover,
  .toc-mobile-content .toc-link:active {
    background: rgba(93, 184, 154, 0.12) !important;
    color: var(--color-navy) !important;
    border-left-color: var(--color-mint) !important;
    font-weight: 700 !important;
  }

  .article-prose {
    max-width: 100% !important;
    width: 100% !important;
    font-size: 1.05rem !important;
    line-height: 1.7 !important;
    word-break: break-word !important;
    overflow-wrap: break-word !important;
  }

  .article-prose p {
    font-size: 1.05rem !important;
    line-height: 1.7 !important;
    margin-bottom: 20px !important;
  }

  .article-prose h2 {
    font-size: 1.45rem !important;
    line-height: 1.25 !important;
    margin: 36px 0 14px !important;
    scroll-margin-top: 80px !important;
  }

  .article-prose h3 {
    font-size: 1.2rem !important;
    line-height: 1.3 !important;
    margin: 26px 0 10px !important;
    scroll-margin-top: 80px !important;
  }

  .article-prose ul, .article-prose ol {
    margin: 0 0 20px 20px !important;
  }

  .article-prose li {
    margin-bottom: 8px !important;
    line-height: 1.65 !important;
    font-size: 1.02rem !important;
  }

  .callout-pro-tip, .callout-warning {
    padding: 16px 16px !important;
    margin: 22px 0 !important;
    font-size: 0.95rem !important;
    border-radius: 12px !important;
  }

  .table-responsive,
  .tech-table-wrapper {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-width: 100% !important;
    border-radius: 12px !important;
    margin: 12px 0 28px !important;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05) !important;
  }

  .table-scroll-hint {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 6px !important;
    font-size: 0.75rem !important;
    color: var(--color-mint-dark) !important;
    font-weight: 700 !important;
    margin-bottom: 6px !important;
    letter-spacing: 0.02em !important;
    user-select: none !important;
  }

  .tech-table {
    min-width: 540px !important;
  }

  .tech-table th, .tech-table td {
    padding: 10px 12px !important;
    font-size: 0.82rem !important;
  }

  .math-formula-box {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-width: 100% !important;
    font-size: 0.9rem !important;
    padding: 16px 16px !important;
    margin: 22px 0 !important;
    border-radius: 12px !important;
    box-sizing: border-box !important;
  }

  .math-formula-display {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-width: 100% !important;
    font-size: 0.95rem !important;
    padding: 8px 4px !important;
    white-space: nowrap !important;
  }

  .katex-display {
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    max-width: 100% !important;
    padding: 4px 0 !important;
    margin: 0.5em 0 !important;
  }

  .article-prose pre {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-width: 100% !important;
    font-size: 0.88rem !important;
    padding: 12px 16px !important;
    border-radius: 10px !important;
  }

  .article-prose code {
    word-break: break-word !important;
  }

  .blog-conversion-card {
    padding: 32px 20px !important;
    margin: 36px 0 24px !important;
    border-radius: var(--radius-lg) !important;
  }

  .blog-conversion-title {
    font-size: 1.4rem !important;
    line-height: 1.25 !important;
    margin-bottom: 12px !important;
  }

  .blog-conversion-subtitle {
    font-size: 0.95rem !important;
    line-height: 1.55 !important;
    margin-bottom: 22px !important;
  }

  .blog-conversion-actions {
    flex-direction: column !important;
    width: 100% !important;
    gap: 12px !important;
  }

  .blog-conversion-actions .btn-blog-primary,
  .blog-conversion-actions .btn-blog-secondary {
    width: 100% !important;
    text-align: center !important;
    justify-content: center !important;
    padding: 14px 18px !important;
    font-size: 0.92rem !important;
    box-sizing: border-box !important;
  }
}


@media (max-width: 480px) {
  .blog-hero {
    padding: 84px 0 24px;
  }

  .blog-hero-title {
    font-size: clamp(1.5rem, 6.5vw, 1.95rem);
    line-height: 1.2;
    margin-bottom: 10px;
  }

  .blog-hero-subtitle {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  .blog-filters-bar {
    gap: 6px;
    padding: 14px 0 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    justify-content: flex-start;
    flex-wrap: nowrap;
    scrollbar-width: none;
  }

  .blog-filter-btn {
    padding: 6px 12px;
    font-size: 0.75rem;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .blog-posts-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px 0 50px;
  }

  .blog-card-media {
    height: 160px;
  }

  .blog-card-content {
    padding: 16px;
  }

  .blog-card-title {
    font-size: 1.05rem;
    line-height: 1.35;
  }

  .blog-card-excerpt {
    font-size: 0.84rem;
    line-height: 1.5;
    margin-bottom: 14px;
  }

  .blog-card-read-more {
    font-size: 0.78rem;
    padding: 5px 10px;
  }
}