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(min-width:640px){.sm\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.sm\:flex-row{flex-direction:row}.sm\:justify-center{justify-content:center}.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\:text-4xl{font-size:2.25rem;line-height:2.5rem}.sm\:text-5xl{font-size:3rem;line-height:1}}@media (min-width:768px){.md\:col-span-2{grid-column:span 2/span 2}.md\:flex{display:flex}.md\:inline-flex{display:inline-flex}.md\:hidden{display:none}.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.md\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.md\:flex-row{flex-direction:row}.md\:items-end{align-items:flex-end}.md\:items-center{align-items:center}.md\:justify-between{justify-content:space-between}}@media (min-width:1024px){.lg\:sticky{position:sticky}.lg\:top-24{top:6rem}.lg\:min-w-\[200px\]{min-width:200px}.lg\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.lg\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.lg\:grid-cols-\[minmax\(0\2c 0\.8fr\)_minmax\(0\2c 1\.2fr\)\]{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}.lg\:grid-cols-\[minmax\(0\2c 1\.1fr\)_minmax\(320px\2c 0\.9fr\)\]{grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr)}.lg\:grid-cols-\[minmax\(0\2c 1\.2fr\)_minmax\(320px\2c 0\.8fr\)\]{grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr)}.lg\:grid-cols-\[minmax\(0\2c 1fr\)_320px\]{grid-template-columns:minmax(0,1fr) 320px}.lg\:flex-row{flex-direction:row}.lg\:flex-col{flex-direction:column}.lg\:items-start{align-items:flex-start}.lg\:items-center{align-items:center}.lg\:justify-between{justify-content:space-between}.lg\:self-start{align-self:flex-start}.lg\:p-8{padding:2rem}.lg\:px-8{padding-left:2rem;padding-right:2rem}.lg\:py-20{padding-top:5rem;padding-bottom:5rem}.lg\:py-24{padding-top:6rem;padding-bottom:6rem}}@media (min-width:1280px){.xl\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.xl\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}}
/* ============================================================
   PROSE TYPOGRAPHY — Custom fallback (no @tailwindcss/typography)
   :where() = zero CSS specificity so all Tailwind utility classes
   always override these defaults. .not-prose reset rules use
   standard specificity (0,2,1) to protect .not-prose blocks.
   ============================================================ */

/* --- Base container --- */
:where(.prose) {
  color: #334155;
  font-size: 1.0625rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* --- Paragraphs --- */
:where(.prose) :where(p) {
  margin-top: 0;
  margin-bottom: 1.5em;
}

/* --- Headings --- */
:where(.prose) :where(h1) {
  font-size: 2rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-top: 0;
  margin-bottom: 1.25rem;
}

:where(.prose) :where(h2) {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.3;
  letter-spacing: -0.025em;
  margin-top: 2.75rem;
  margin-bottom: 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
}

:where(.prose) :where(h3) {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.4;
  letter-spacing: -0.015em;
  margin-top: 2rem;
  margin-bottom: 0.625rem;
}

:where(.prose) :where(h4) {
  font-size: 1.05rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.4;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

:where(.prose) :where(h5),
:where(.prose) :where(h6) {
  font-size: 1rem;
  font-weight: 600;
  color: #334155;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

/* No top margin when heading is the first child */
:where(.prose) > :where(h2):first-child,
:where(.prose) > :where(h3):first-child,
:where(.prose) > :where(h4):first-child {
  margin-top: 0;
}

/* --- Links --- */
:where(.prose) :where(a) {
  color: #1d4ed8;
  text-decoration: underline;
  text-decoration-color: #93c5fd;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  font-weight: 500;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

:where(.prose) :where(a):hover {
  color: #1e40af;
  text-decoration-color: #3b82f6;
}

/* --- Lists --- */
:where(.prose) :where(ul) {
  list-style-type: disc;
  margin-top: 0.75rem;
  margin-bottom: 1.5rem;
  padding-left: 1.75rem;
}

:where(.prose) :where(ol) {
  list-style-type: decimal;
  margin-top: 0.75rem;
  margin-bottom: 1.5rem;
  padding-left: 1.75rem;
}

:where(.prose) :where(li) {
  margin-bottom: 0.5rem;
  line-height: 1.75;
  color: #334155;
}

:where(.prose) :where(li) > :where(ul),
:where(.prose) :where(li) > :where(ol) {
  margin-top: 0.375rem;
  margin-bottom: 0.5rem;
}

:where(.prose) :where(li) > :where(p) {
  margin-bottom: 0.5rem;
}

/* --- Blockquote --- */
:where(.prose) :where(blockquote) {
  border-left: 4px solid #3b82f6;
  background-color: #eff6ff;
  border-radius: 0 0.625rem 0.625rem 0;
  padding: 1rem 1.25rem;
  margin: 2rem 0;
  color: #1e3a5f;
  font-style: italic;
}

:where(.prose) :where(blockquote) :where(p) {
  margin-bottom: 0;
}

/* --- Inline emphasis --- */
:where(.prose) :where(strong) {
  font-weight: 700;
  color: #0f172a;
}

:where(.prose) :where(em) {
  font-style: italic;
}

/* --- Inline code --- */
:where(.prose) :where(code):not(:where(pre) *) {
  background-color: #f1f5f9;
  color: #0f172a;
  border-radius: 0.25rem;
  padding: 0.15em 0.4em;
  font-size: 0.875em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 500;
}

/* --- Code block --- */
:where(.prose) :where(pre) {
  background-color: #1e293b;
  color: #e2e8f0;
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.75rem 0;
  font-size: 0.875rem;
  line-height: 1.75;
}

:where(.prose) :where(pre) :where(code) {
  background: none;
  color: inherit;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  font-weight: inherit;
}

/* --- Horizontal rule --- */
:where(.prose) :where(hr) {
  border: none;
  border-top: 2px solid #e2e8f0;
  margin: 2.5rem 0;
}

/* --- Tables (prose-native; .not-prose tables are protected below) --- */
:where(.prose) :where(table) {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  margin: 1.75rem 0;
}

:where(.prose) :where(thead) :where(tr) {
  background-color: #f8fafc;
  border-bottom: 2px solid #e2e8f0;
}

:where(.prose) :where(th) {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  color: #0f172a;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
}

:where(.prose) :where(td) {
  padding: 0.75rem 1rem;
  color: #334155;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: top;
}

:where(.prose) :where(tbody) :where(tr):last-child :where(td) {
  border-bottom: none;
}

:where(.prose) :where(tbody) :where(tr):hover {
  background-color: #f8fafc;
}

/* --- Images --- */
:where(.prose) :where(img) {
  border-radius: 0.75rem;
  max-width: 100%;
  margin: 1.75rem auto;
}

:where(.prose) :where(figcaption) {
  text-align: center;
  font-size: 0.875rem;
  color: #64748b;
  margin-top: 0.5rem;
  font-style: italic;
}

/* --- Definition lists --- */
:where(.prose) :where(dt) {
  font-weight: 600;
  color: #0f172a;
  margin-top: 1rem;
}

:where(.prose) :where(dd) {
  margin-left: 1.5rem;
  margin-top: 0.25rem;
  color: #334155;
}

/* ============================================================
   .not-prose PROTECTION
   These rules have normal specificity (0,2,1 or higher) so they
   override the :where() prose styles for .not-prose blocks,
   preventing table border/margin/padding from bleeding in.
   ============================================================ */

.prose .not-prose table {
  border: 0;
  margin: 0;
  font-size: inherit;
}

.prose .not-prose thead tr {
  background-color: transparent;
  border: 0;
}

.prose .not-prose th,
.prose .not-prose td {
  padding: 0;
  color: inherit;
  border: 0;
  font-size: inherit;
  font-weight: inherit;
}

.prose .not-prose tbody tr:hover {
  background-color: transparent;
}


/* ================================================================
   ARTICLE TEMPLATE — v2 Premium Editorial Design System
   All new classes. :where() used for prose overrides (zero
   specificity) so Tailwind utilities remain dominant.
   ================================================================ */

/* ---- Hero section --------------------------------------------- */
.article-hero {
  background: linear-gradient(175deg, #f1f5f9 0%, #ffffff 55%);
  border-bottom: 1px solid #e2e8f0;
}

.article-category-badge {
  display: inline-flex;
  align-items: center;
  background-color: #eff6ff;
  color: #1d4ed8;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid #bfdbfe;
}

.article-byline {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
  margin-top: 0.875rem;
  font-size: 0.875rem;
  color: #64748b;
}

.article-byline-dot {
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background-color: #cbd5e1;
  flex-shrink: 0;
}

/* ---- Article reading-width column ----------------------------- */
.article-body {
  max-width: 68ch;
  min-width: 0;
}

/* ---- Prose heading overrides scoped to .article-body ---------- */
/* These come after the base .prose rules so they win at equal
   zero specificity (last-rule-wins for same property). */

:where(.article-body) :where(h2) {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-left: 0.875rem;
  padding-bottom: 0;
  border-bottom: none;
  border-left: 3px solid #3b82f6;
}

:where(.article-body) > :where(h2):first-child {
  margin-top: 0;
}

:where(.article-body) :where(h3) {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-top: 2.25rem;
  margin-bottom: 0.625rem;
}

:where(.article-body) :where(h4) {
  font-size: 1.0625rem;
  font-weight: 600;
  color: #1e293b;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

:where(.article-body) :where(p) {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #374151;
  margin-bottom: 1.375em;
  margin-top: 0;
}

/* Custom blue-dot bullets replacing default disc */
:where(.article-body) :where(ul) {
  list-style: none;
  padding-left: 0;
  margin-top: 0.75rem;
  margin-bottom: 1.75rem;
}

:where(.article-body) :where(ul) :where(li) {
  position: relative;
  padding-left: 1.375rem;
  margin-bottom: 0.625rem;
  line-height: 1.75;
  color: #374151;
}

:where(.article-body) :where(ul) :where(li)::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.625em;
  width: 6px;
  height: 6px;
  background-color: #3b82f6;
  border-radius: 50%;
}

:where(.article-body) :where(ol) {
  padding-left: 1.5rem;
  margin-top: 0.75rem;
  margin-bottom: 1.75rem;
}

:where(.article-body) :where(ol) :where(li) {
  padding-left: 0.375rem;
  margin-bottom: 0.625rem;
  line-height: 1.75;
  color: #374151;
}

:where(.article-body) :where(a) {
  color: #1d4ed8;
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: #93c5fd;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

:where(.article-body) :where(a):hover {
  color: #1e40af;
  text-decoration-color: #3b82f6;
}

:where(.article-body) :where(strong) {
  font-weight: 700;
  color: #0f172a;
}

/* ---- In-article callout / CTA boxes -------------------------- */
.callout {
  border-radius: 0.875rem;
  padding: 1.5rem;
  margin: 2rem 0;
  border: 1px solid transparent;
}

.callout-info {
  background-color: #eff6ff;
  border-color: #bfdbfe;
}

.callout-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #1d4ed8;
  margin: 0 0 0.5rem;
}

.callout-title {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.35;
  margin: 0 0 0.5rem;
}

.callout-body {
  display: block;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: #374151;
  margin: 0;
}

.callout-actions {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 1.125rem;
}

@media (min-width: 480px) {
  .callout-actions { flex-direction: row; }
}

/* ---- Buttons -------------------------------------------------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background-color: #1d4ed8;
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
}

.btn-primary:hover {
  background-color: #1e40af;
  box-shadow: 0 4px 14px rgba(29,78,216,0.35);
  color: #ffffff;
  text-decoration: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  border: 1.5px solid #cbd5e1;
  background-color: #ffffff;
  color: #0f172a;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-secondary:hover {
  background-color: #f8fafc;
  border-color: #94a3b8;
  color: #0f172a;
  text-decoration: none;
}

/* Ghost button for dark/gradient backgrounds */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  border: 1.5px solid rgba(255,255,255,0.35);
  background-color: rgba(255,255,255,0.1);
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease;
  backdrop-filter: blur(4px);
}

.btn-ghost:hover {
  background-color: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.55);
  color: #ffffff;
  text-decoration: none;
}

/* ---- Sidebar cards -------------------------------------------- */
.sidebar-insight {
  border-radius: 1rem;
  background: linear-gradient(145deg, #1e3a5f 0%, #1d4ed8 100%);
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(29,78,216,0.18);
}

.sidebar-insight-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #93c5fd;
  margin-bottom: 0.625rem;
}

.sidebar-insight-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.4;
  margin: 0 0 0.625rem;
}

.sidebar-insight-body {
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.78);
  margin: 0;
}

.sidebar-tools-card {
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  padding: 1.375rem 1.5rem;
  background-color: #ffffff;
}

.sidebar-tools-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #64748b;
  margin: 0 0 0.875rem;
  display: block;
}

.sidebar-meta-card {
  border-radius: 0.875rem;
  border: 1px solid #f1f5f9;
  background-color: #f8fafc;
  padding: 1.125rem 1.25rem;
}

/* ---- Related guide cards -------------------------------------- */
.guide-card {
  display: block;
  border-radius: 0.875rem;
  border: 1px solid #e2e8f0;
  background-color: #ffffff;
  padding: 1.25rem 1.375rem;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.guide-card:hover {
  border-color: #93c5fd;
  box-shadow: 0 4px 18px rgba(59,130,246,0.1);
  transform: translateY(-2px);
  text-decoration: none;
}

.guide-card-category {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #3b82f6;
  margin: 0 0 0.375rem;
}

.guide-card-title {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #0f172a;
  line-height: 1.45;
  margin: 0;
}

.guide-card-arrow {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #3b82f6;
  transition: gap 0.2s ease;
}

.guide-card:hover .guide-card-arrow {
  gap: 0.5rem;
}

/* ---- Table wrapper -------------------------------------------- */
.table-wrap {
  margin: 2rem 0;
  border-radius: 0.875rem;
  border: 1px solid #e2e8f0;
  overflow: hidden;
  overflow-x: auto;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.table-wrap table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.table-wrap thead tr {
  background-color: #f8fafc;
  border-bottom: 1.5px solid #e2e8f0;
}

.table-wrap th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #475569;
  white-space: nowrap;
}

.table-wrap tbody tr {
  border-bottom: 1px solid #f1f5f9;
}

.table-wrap tbody tr:last-child { border-bottom: none; }

.table-wrap tbody tr:nth-child(odd)  { background-color: #ffffff; }
.table-wrap tbody tr:nth-child(even) { background-color: #f8fafc; }
.table-wrap tbody tr:hover           { background-color: #eff6ff; }

.table-wrap td {
  padding: 0.875rem 1rem;
  color: #334155;
  vertical-align: top;
  line-height: 1.5;
}

.table-wrap td:first-child {
  font-weight: 600;
  color: #0f172a;
}

.table-caption {
  padding: 0.625rem 1rem;
  font-size: 0.75rem;
  color: #64748b;
  background-color: #f8fafc;
  border-top: 1px solid #e2e8f0;
  line-height: 1.5;
}

/* ---- Related guides section ----------------------------------- */
.related-guides-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .related-guides-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .related-guides-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---- Bottom CTA section --------------------------------------- */
.article-bottom-cta {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1d4ed8 100%);
  padding: 5rem 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .article-bottom-cta { padding: 6rem 1.5rem; }
}

.article-bottom-cta-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.025em;
  line-height: 1.25;
  max-width: 40rem;
  margin: 0 auto 1rem;
}

@media (min-width: 640px) {
  .article-bottom-cta-title { font-size: 2.25rem; }
}

.article-bottom-cta-body {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  max-width: 38rem;
  margin: 0 auto 2.25rem;
}

/* ---- Reading progress bar ------------------------------------- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);
  z-index: 200;
  transition: width 0.1s linear;
  pointer-events: none;
  box-shadow: 0 0 8px rgba(99,102,241,0.4);
}

/* ================================================================
   PREMIUM EDITORIAL v3 — Typography, Layout, and Component Upgrades
   All rules here override the earlier declarations via cascade order.
   ================================================================ */

/* --- Design tokens --- */
:root {
  --font-editorial: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --brand: #1d4ed8;
  --brand-dark: #1e3a5f;
  --text-primary: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --border-subtle: #e8edf3;
  --surface-raised: #f8fafc;
}

body {
  font-family: var(--font-editorial);
}

/* --- Hero section redesign --- */
.article-hero {
  background: linear-gradient(168deg, #eef5ff 0%, #f8faff 40%, #ffffff 70%);
  border-bottom: 1px solid #e2e8f0;
  padding: 3.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.article-hero::after {
  content: '';
  position: absolute;
  top: -80px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.07) 0%, transparent 65%);
  pointer-events: none;
}

/* --- Breadcrumb --- */
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: #64748b;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.article-breadcrumb a {
  color: #64748b;
  text-decoration: none;
  transition: color 0.15s;
}

.article-breadcrumb a:hover { color: #1d4ed8; }

.article-breadcrumb-sep {
  color: #cbd5e1;
  font-size: 0.75rem;
}

/* --- Article H1 --- */
.article-title {
  font-family: var(--font-editorial);
  font-size: clamp(1.875rem, 4vw, 2.875rem);
  font-weight: 800;
  color: #0f172a;
  line-height: 1.18;
  letter-spacing: -0.035em;
  max-width: 20em;
  margin: 0.875rem 0 0;
}

/* --- Hero lead --- */
.article-lead {
  font-size: 1.1875rem;
  line-height: 1.75;
  color: #475569;
  max-width: 62ch;
  margin: 1.125rem 0 0;
  font-weight: 400;
}

/* --- Byline --- */
.article-byline {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: #64748b;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
}

/* --- Article body prose: full override for premium typography --- */
:where(.article-body) {
  font-family: var(--font-editorial);
  font-size: 1.0625rem;
  line-height: 1.875;
  color: #334155;
}

:where(.article-body) :where(p) {
  font-size: 1.0625rem;
  line-height: 1.875;
  color: #334155;
  margin-bottom: 1.625em;
  margin-top: 0;
}

:where(.article-body) :where(h2) {
  font-size: 1.5rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.22;
  letter-spacing: -0.028em;
  margin-top: 3.5rem;
  margin-bottom: 1.125rem;
  padding-left: 1rem;
  border-left: 4px solid #3b82f6;
  border-bottom: none;
  padding-bottom: 0;
}

:where(.article-body) > :where(h2):first-child { margin-top: 0; }

:where(.article-body) :where(h3) {
  font-size: 1.1875rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.3;
  letter-spacing: -0.018em;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

:where(.article-body) :where(h4) {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #1e293b;
  margin-top: 2rem;
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}

:where(.article-body) :where(ul) :where(li)::before {
  width: 7px;
  height: 7px;
  background-color: #2563eb;
  top: 0.66em;
}

:where(.article-body) :where(strong) {
  font-weight: 700;
  color: #0f172a;
}

/* --- Enhanced callouts --- */
.callout {
  border-radius: 1rem;
  padding: 1.75rem;
  margin: 2.5rem 0;
  border: 1px solid transparent;
}

.callout-info {
  background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
  border-color: #bfdbfe;
  box-shadow: 0 2px 16px rgba(59,130,246,0.08);
}

.callout-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #2563eb;
  display: block;
  margin: 0 0 0.625rem;
}

.callout-title {
  font-size: 1.1875rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.3;
  letter-spacing: -0.02em;
  display: block;
  margin: 0 0 0.625rem;
}

.callout-body {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #475569;
  display: block;
  margin: 0;
}

.callout-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

@media (min-width: 480px) { .callout-actions { flex-direction: row; } }

/* --- Enhanced buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.625rem;
  background-color: #1d4ed8;
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 0.875rem 1.75rem;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
  box-shadow: 0 2px 8px rgba(29,78,216,0.25), 0 1px 3px rgba(0,0,0,0.1);
}

.btn-primary:hover {
  background-color: #1e40af;
  box-shadow: 0 6px 20px rgba(29,78,216,0.4);
  transform: translateY(-1px);
  color: #ffffff;
  text-decoration: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.625rem;
  border: 1.5px solid #d1d5db;
  background-color: #ffffff;
  color: #0f172a;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 0.875rem 1.75rem;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn-secondary:hover {
  background-color: #f8fafc;
  border-color: #6b7280;
  color: #0f172a;
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.625rem;
  border: 1.5px solid rgba(255,255,255,0.3);
  background-color: rgba(255,255,255,0.1);
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 0.875rem 1.75rem;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  backdrop-filter: blur(4px);
}

.btn-ghost:hover {
  background-color: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.55);
  color: #ffffff;
  transform: translateY(-1px);
  text-decoration: none;
}

/* --- Enhanced sidebar cards --- */
.sidebar-stack { display: flex; flex-direction: column; gap: 1.25rem; }

.sidebar-insight {
  border-radius: 1.125rem;
  background: linear-gradient(145deg, #0f172a 0%, #1e3a5f 55%, #1d4ed8 100%);
  padding: 1.625rem 1.5rem;
  box-shadow: 0 8px 32px rgba(15,23,42,0.2), 0 2px 8px rgba(29,78,216,0.15);
  position: relative;
  overflow: hidden;
}

.sidebar-insight::after {
  content: '';
  position: absolute;
  bottom: -30px;
  right: -30px;
  width: 130px;
  height: 130px;
  background: radial-gradient(circle, rgba(99,102,241,0.35) 0%, transparent 70%);
  pointer-events: none;
}

.sidebar-insight-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #93c5fd;
  margin-bottom: 0.75rem;
}

.sidebar-insight-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  margin: 0 0 0.875rem;
  letter-spacing: -0.01em;
}

.sidebar-score-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 0.875rem;
  line-height: 1.4;
}

.sidebar-score-row:last-child { border-bottom: none; }

.sidebar-score-value {
  font-weight: 700;
  font-size: 0.9375rem;
  flex-shrink: 0;
  min-width: 3.5rem;
}

.sidebar-score-desc { color: rgba(255,255,255,0.72); }

.sidebar-tools-card {
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  padding: 1.5rem;
  background-color: #ffffff;
  box-shadow: 0 1px 6px rgba(0,0,0,0.04);
}

.sidebar-tools-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #64748b;
  margin: 0 0 1rem;
  display: block;
}

.sidebar-tools-card .btn-primary,
.sidebar-tools-card .btn-secondary {
  width: 100%;
  padding: 0.8125rem 1rem;
  font-size: 0.9rem;
  justify-content: center;
}

.sidebar-meta-card {
  border-radius: 0.875rem;
  border: 1px solid #f1f5f9;
  background-color: #f8fafc;
  padding: 1.125rem 1.25rem;
}

/* --- Enhanced table wrap --- */
.table-wrap {
  margin: 2.5rem 0;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  overflow: hidden;
  overflow-x: auto;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}

.table-wrap table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.table-wrap thead tr {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 1.5px solid #e2e8f0;
}

.table-wrap th {
  padding: 0.875rem 1rem;
  text-align: left;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #475569;
  white-space: nowrap;
}

.table-wrap tbody tr { border-bottom: 1px solid #f1f5f9; }
.table-wrap tbody tr:last-child { border-bottom: none; }
.table-wrap tbody tr:nth-child(odd)  { background-color: #ffffff; }
.table-wrap tbody tr:nth-child(even) { background-color: #f8fafc; }
.table-wrap tbody tr:hover           { background-color: #eff6ff; transition: background-color 0.1s; }

.table-wrap td {
  padding: 0.875rem 1rem;
  color: #334155;
  vertical-align: top;
  line-height: 1.5;
}

.table-wrap td:first-child { font-weight: 600; color: #0f172a; }

.table-caption {
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  color: #64748b;
  background-color: #f8fafc;
  border-top: 1px solid #e2e8f0;
  line-height: 1.55;
}

/* --- Enhanced guide cards --- */
.guide-card {
  display: block;
  border-radius: 1rem;
  border: 1px solid #e8edf3;
  background-color: #ffffff;
  padding: 1.375rem 1.5rem;
  text-decoration: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.guide-card:hover {
  border-color: #93c5fd;
  box-shadow: 0 6px 24px rgba(59,130,246,0.12);
  transform: translateY(-3px);
  text-decoration: none;
}

.guide-card-category {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #2563eb;
  margin: 0 0 0.5rem;
}

.guide-card-title {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #0f172a;
  line-height: 1.45;
  letter-spacing: -0.01em;
  margin: 0;
}

.guide-card-arrow {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #2563eb;
  transition: gap 0.2s ease;
}

.guide-card:hover .guide-card-arrow { gap: 0.5rem; }

/* --- Related guides grid --- */
.related-guides-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) { .related-guides-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .related-guides-grid { grid-template-columns: repeat(3, 1fr); } }

/* --- Bottom CTA redesign --- */
.article-bottom-cta {
  background: linear-gradient(140deg, #0f172a 0%, #1e3a5f 45%, #1d4ed8 100%);
  padding: 6rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.article-bottom-cta::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 350px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.22) 0%, transparent 65%);
  pointer-events: none;
}

.article-bottom-cta-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #93c5fd;
  display: block;
  margin: 0 0 1rem;
}

.article-bottom-cta-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: 38rem;
  margin: 0 auto 1.125rem;
}

.article-bottom-cta-body {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.75;
  max-width: 38rem;
  margin: 0 auto 2.5rem;
}

.article-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  align-items: center;
}

@media (min-width: 480px) { .article-cta-actions { flex-direction: row; justify-content: center; } }

/* --- Mobile polish --- */
@media (max-width: 767px) {
  .article-hero { padding: 2.5rem 0 2.25rem; }
  .article-title { font-size: 1.875rem; letter-spacing: -0.025em; }
  .article-lead { font-size: 1rem; }
  :where(.article-body) :where(h2) { font-size: 1.3125rem; margin-top: 2.75rem; }
  :where(.article-body) :where(h3) { font-size: 1.125rem; margin-top: 2rem; }
  :where(.article-body) :where(p) { font-size: 1rem; line-height: 1.8; }
  .callout { padding: 1.375rem; }
  .article-bottom-cta { padding: 4rem 1.25rem; }
}