/* ==========================================================================
   SINGLE BLOG POST — WORLD-CLASS EDITORIAL & PROSE STYLESHEET
   Scoped under .blog-single-article
   ========================================================================== */

/* Reading Progress Bar */
.blog-reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #0052ff, #0ea5e9);
  z-index: 9999;
  width: 0%;
  transition: width 0.1s ease-out;
}

.blog-single-article {
  --blog-primary: #0052ff;
  --blog-primary-hover: #0043d4;
  --blog-primary-light: #eff6ff;
  --blog-primary-glow: rgba(0, 82, 255, 0.12);

  --blog-slate-900: #0f172a;
  --blog-slate-800: #1e293b;
  --blog-slate-700: #334155;
  --blog-slate-600: #475569;
  --blog-slate-500: #64748b;
  --blog-slate-400: #94a3b8;
  --blog-slate-200: #e2e8f0;
  --blog-slate-100: #f1f5f9;
  --blog-slate-50:  #f8fafc;
  --blog-white:     #ffffff;

  --blog-font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --blog-font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  font-family: var(--blog-font-body);
  color: var(--blog-slate-900);
  background-color: #ffffff;
  padding-bottom: 80px;
}

/* ==========================================================================
   HERO / ARTICLE HEADER
   ========================================================================== */

.blog-hero {
  padding: 48px 0 40px;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--blog-slate-200);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background-image: radial-gradient(#0052ff 0.75px, transparent 0.75px), radial-gradient(#0ea5e9 0.75px, #f8fafc 0.75px);
  background-size: 28px 28px;
  background-position: 0 0, 14px 14px;
  opacity: 0.15;
  pointer-events: none;
}

.blog-hero-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.blog-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.back-to-blog {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--blog-font-heading);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--blog-slate-600);
  text-transform: uppercase;
  transition: all 0.2s ease;
  padding: 6px 12px;
  background: #ffffff;
  border: 1px solid var(--blog-slate-200);
  border-radius: 6px;
}

.back-to-blog:hover {
  color: var(--blog-primary);
  border-color: var(--blog-primary);
  transform: translateX(-3px);
}

.blog-category-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  background: var(--blog-primary-light);
  border: 1px solid rgba(0, 82, 255, 0.2);
  color: var(--blog-primary);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-post-title {
  font-family: var(--blog-font-heading);
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 800;
  color: var(--blog-slate-900);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  max-width: 960px;
}

/* Author & Metadata Bar */
.blog-author-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--blog-slate-200);
}

.author-profile-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--blog-primary);
  background: #e0ecfe;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--blog-primary);
  box-shadow: 0 2px 8px rgba(0, 82, 255, 0.15);
}

.author-text-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-name {
  font-family: var(--blog-font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--blog-slate-900);
  display: flex;
  align-items: center;
  gap: 6px;
}

.author-verified-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  background: var(--blog-primary);
  color: #ffffff;
  border-radius: 50%;
  font-size: 0.55rem;
  font-weight: 900;
}

.post-details {
  font-size: 0.8rem;
  color: var(--blog-slate-500);
  display: flex;
  align-items: center;
  gap: 8px;
}

.post-details .dot {
  color: var(--blog-slate-300);
}

/* Share & Action Buttons */
.blog-share-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.blog-share-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--blog-slate-500);
  margin-right: 4px;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid var(--blog-slate-200);
  color: var(--blog-slate-600);
  transition: all 0.2s ease;
  cursor: pointer;
}

.share-btn:hover {
  background: var(--blog-primary-light);
  border-color: var(--blog-primary);
  color: var(--blog-primary);
  transform: translateY(-2px);
}

/* ==========================================================================
   MAIN ARTICLE BODY LAYOUT
   ========================================================================== */

.blog-body-container {
  max-width: 1140px;
  margin: 40px auto 0;
  padding: 0 24px;
}

.blog-content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 48px;
  align-items: start;
}

/* ==========================================================================
   EDITORIAL PROSE STYLING
   ========================================================================== */

.blog-prose-content {
  font-family: var(--blog-font-body);
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--blog-slate-700);
}

/* Lead Paragraph */
.blog-prose-content .lead-text,
.blog-prose-content > p:first-of-type {
  font-size: 1.22rem;
  line-height: 1.7;
  color: var(--blog-slate-900);
  font-weight: 500;
  margin-bottom: 24px;
}

.blog-prose-content p {
  margin-bottom: 20px;
  color: var(--blog-slate-700);
}

/* Headings */
.blog-prose-content h2 {
  font-family: var(--blog-font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--blog-slate-900);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 44px 0 16px 0;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blog-slate-100);
  position: relative;
}

.blog-prose-content h2::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--blog-primary);
}

.blog-prose-content h3 {
  font-family: var(--blog-font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--blog-slate-900);
  line-height: 1.35;
  margin: 32px 0 12px 0;
}

.blog-prose-content h4 {
  font-family: var(--blog-font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blog-slate-800);
  margin: 24px 0 8px 0;
}

/* Lists */
.blog-prose-content ul,
.blog-prose-content ol {
  margin: 16px 0 24px 0;
  padding-left: 0;
  list-style: none;
}

.blog-prose-content ul > li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  line-height: 1.7;
}

.blog-prose-content ul > li::before {
  content: '•';
  position: absolute;
  left: 8px;
  top: 0;
  color: var(--blog-primary);
  font-size: 1.4rem;
  line-height: 1.2;
}

.blog-prose-content ol {
  counter-reset: blog-counter;
}

.blog-prose-content ol > li {
  position: relative;
  padding-left: 34px;
  margin-bottom: 14px;
  line-height: 1.7;
  counter-increment: blog-counter;
}

.blog-prose-content ol > li::before {
  content: counter(blog-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--blog-primary-light);
  color: var(--blog-primary);
  font-size: 0.72rem;
  font-weight: 800;
  font-family: var(--blog-font-heading);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 82, 255, 0.2);
}

/* Blockquotes */
.blog-prose-content blockquote {
  margin: 32px 0;
  padding: 22px 28px;
  background: linear-gradient(135deg, #f0f6ff 0%, #f8fafc 100%);
  border-left: 4px solid var(--blog-primary);
  border-radius: 0 14px 14px 0;
  box-shadow: 0 2px 10px rgba(0, 82, 255, 0.04);
  position: relative;
}

.blog-prose-content blockquote p {
  font-size: 1.12rem;
  font-weight: 600;
  font-style: italic;
  color: var(--blog-slate-800);
  line-height: 1.65;
  margin: 0;
}

/* Horizontal Rule Divider */
.blog-prose-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blog-slate-200), transparent);
  margin: 44px 0;
}

/* Highlighting & Strong Text */
.blog-prose-content strong {
  color: var(--blog-slate-900);
  font-weight: 700;
}

.blog-prose-content em {
  color: var(--blog-slate-800);
  font-style: italic;
}

/* Code Snippets */
.blog-prose-content code {
  background: var(--blog-slate-100);
  color: var(--blog-primary);
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 0.88em;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  border: 1px solid var(--blog-slate-200);
}

/* ==========================================================================
   TABLE OF CONTENTS & COMPARISON TABLES
   ========================================================================== */

.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 28px 0 36px 0;
  border: 1px solid var(--blog-slate-200);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
  background: #ffffff;
}

.styled-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.styled-table thead tr {
  background: #0f172a;
  color: #ffffff;
}

.styled-table th {
  padding: 14px 18px;
  font-family: var(--blog-font-heading);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--blog-primary);
}

.styled-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--blog-slate-100);
  color: var(--blog-slate-700);
  line-height: 1.55;
}

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

.styled-table tbody tr:hover {
  background-color: #f1f5f9;
}

.styled-table td strong {
  color: var(--blog-slate-900);
}

/* ==========================================================================
   STICKY POST SIDEBAR
   ========================================================================== */

.blog-post-sidebar {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: #ffffff;
  border: 1px solid var(--blog-slate-200);
  border-radius: 14px;
  padding: 24px 20px;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.sidebar-heading {
  font-family: var(--blog-font-heading);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--blog-slate-500);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.sidebar-bio {
  font-size: 0.84rem;
  color: var(--blog-slate-600);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* Promo Cards */
.cta-promo-card {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border: 1px solid #334155;
  border-radius: 14px;
  padding: 24px 20px;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.15);
}

.promo-badge-pill {
  display: inline-block;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  background: rgba(14, 165, 233, 0.2);
  color: #38bdf8;
  border: 1px solid rgba(14, 165, 233, 0.4);
  border-radius: 999px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.promo-card-title {
  font-family: var(--blog-font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 8px;
}

.promo-card-desc {
  font-size: 0.8rem;
  color: #94a3b8;
  line-height: 1.5;
  margin-bottom: 16px;
}

.sidebar-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px 16px;
  font-family: var(--blog-font-heading);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-align: center;
  border-radius: 8px;
  transition: all 0.2s ease;
  text-decoration: none;
  box-sizing: border-box;
}

.sidebar-cta-primary {
  background: var(--blog-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 82, 255, 0.3);
}

.sidebar-cta-primary:hover {
  background: var(--blog-primary-hover);
  transform: translateY(-2px);
}

.sidebar-cta-secondary {
  background: var(--blog-slate-100);
  color: var(--blog-slate-800);
  border: 1px solid var(--blog-slate-200);
}

.sidebar-cta-secondary:hover {
  background: var(--blog-slate-200);
  color: var(--blog-slate-900);
}

/* ==========================================================================
   POST FOOTER & ARTICLE NAVIGATION
   ========================================================================== */

.blog-footer-nav-section {
  max-width: 1140px;
  margin: 60px auto 0;
  padding: 32px 24px 0;
  border-top: 1px solid var(--blog-slate-200);
}

.post-nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.post-nav-card {
  background: var(--blog-slate-50);
  border: 1px solid var(--blog-slate-200);
  border-radius: 12px;
  padding: 20px 24px;
  transition: all 0.2s ease;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.post-nav-card:hover {
  background: #ffffff;
  border-color: var(--blog-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 82, 255, 0.08);
}

.post-nav-dir {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--blog-primary);
  text-transform: uppercase;
}

.post-nav-title {
  font-family: var(--blog-font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--blog-slate-900);
  line-height: 1.35;
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .blog-content-layout {
    grid-template-columns: 1fr;
  }
  .blog-post-sidebar {
    position: static;
    margin-top: 40px;
  }
  .post-nav-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .blog-hero {
    padding: 32px 0 24px;
  }
  .blog-post-title {
    font-size: 1.7rem;
  }
  .blog-prose-content {
    font-size: 1rem;
    line-height: 1.75;
  }
  .styled-table th, .styled-table td {
    padding: 10px 12px;
    font-size: 0.8rem;
  }
}