/* ============================================
   Article Page Styles
   ============================================ */

/* 1. Reading Progress Bar
   ------------------------------------------ */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--color-accent);
  z-index: 200;
  transition: width 0.25s ease-out;
  pointer-events: none;
}

/* 2. Article Hero
   ------------------------------------------ */
.article-hero {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.article-hero img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.3) 40%, transparent 100%);
  z-index: 1;
}

.article-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  color: #fff;
}

.article-hero .badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-sm);
}

.article-hero h1 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin: 0 0 var(--spacing-sm) 0;
  max-width: 800px;
}

.article-hero .article-meta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
}

.article-hero .article-meta-line span {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* 3. Breadcrumb
   ------------------------------------------ */
.article-breadcrumb {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
}

.article-breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color 0.2s ease;
}

.article-breadcrumb a:hover {
  text-decoration: underline;
  color: #fff;
}

.article-breadcrumb span + span::before {
  content: ">";
  margin: 0 var(--spacing-sm);
  opacity: 0.6;
}

/* 4. Article Layout
   ------------------------------------------ */
.article-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  min-width: 0;
}

.article-layout > * {
  min-width: 0;
  overflow-x: auto;
}

/* 5. Article Meta Bar
   ------------------------------------------ */
.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.article-meta-bar .author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.article-meta-bar .author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.article-meta-bar .author-name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.article-meta-bar .author-title {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.article-meta-bar .meta-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

.article-meta-bar .meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.8125rem;
}

.article-meta-bar .meta-label {
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.article-meta-bar .meta-value {
  color: var(--color-text);
  font-weight: 500;
}

/* 6. Share Bar
   ------------------------------------------ */
.article-share-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.article-share-bar .share-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-right: var(--spacing-xs);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.share-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* 7. Article Body Typography
   ------------------------------------------ */
.article-body {
  max-width: 720px;
  overflow-x: auto;
}

.article-body p {
  margin-bottom: 1.25rem;
  line-height: 1.75;
  color: var(--color-text);
  font-size: 1rem;
}

.article-body h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
  line-height: 1.3;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.article-body ul,
.article-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  line-height: 1.75;
}

.article-body ul {
  list-style-type: disc;
}

.article-body ol {
  list-style-type: decimal;
}

.article-body ul li,
.article-body ol li {
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

.article-body a:hover {
  color: var(--color-primary-hover);
}

.article-body strong {
  font-weight: 700;
  color: var(--color-text);
}

.article-body blockquote {
  margin: 1.5rem 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

/* 8. Lead Paragraph
   ------------------------------------------ */
.lead-paragraph {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* 9. Key Takeaways
   ------------------------------------------ */
.key-takeaways {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.key-takeaways h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 1rem 0;
  padding-bottom: 0;
  border-bottom: none;
}

.key-takeaways ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.key-takeaways ul li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.625rem;
  line-height: 1.6;
  color: var(--color-text);
}

.key-takeaways ul li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
}

/* 10. Inline CTA Variants
   ------------------------------------------ */
.inline-cta {
  padding: var(--spacing-lg) 1.5rem;
  margin: 2rem 0;
  border-radius: var(--radius-md);
}

.inline-cta h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.inline-cta p {
  margin-bottom: 1rem;
}

/* Soft variant */
.inline-cta--soft {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
}

.inline-cta--soft h3 {
  color: var(--color-primary);
  font-size: 1.125rem;
}

.inline-cta--soft a.cta-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: background 0.2s ease;
}

.inline-cta--soft a.cta-button:hover {
  background: var(--color-primary-hover);
}

/* Prominent variant */
.inline-cta--prominent {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
}

.inline-cta--prominent h3 {
  color: #fff;
  font-size: 1.25rem;
}

.inline-cta--prominent p {
  color: rgba(255, 255, 255, 0.9);
}

.inline-cta--prominent a.cta-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-xl);
  background: #fff;
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: background 0.2s ease, transform 0.2s ease;
}

.inline-cta--prominent a.cta-button:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-1px);
}

/* Conclusion variant */
.inline-cta--conclusion {
  background: #fff;
  border: 2px solid var(--color-accent);
  text-align: center;
}

.inline-cta--conclusion h3 {
  color: var(--color-text);
  font-size: 1.125rem;
}

.inline-cta--conclusion p {
  color: var(--color-text-secondary);
}

.inline-cta--conclusion a.cta-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: background 0.2s ease, transform 0.2s ease;
}

.inline-cta--conclusion a.cta-button:hover {
  background: #d0681f;
  transform: translateY(-1px);
}

/* 11. Data Tables
   ------------------------------------------ */
.data-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.data-table thead th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: 0.75rem 1rem;
  white-space: normal;
}

.data-table thead th:first-child {
  border-radius: var(--radius-md) 0 0 0;
}

.data-table thead th:last-child {
  border-radius: 0 var(--radius-md) 0 0;
}

.data-table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.data-table tbody tr:nth-child(even) {
  background: var(--color-bg-alt);
}

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

.data-table tbody tr:hover {
  background: rgba(27, 107, 90, 0.04);
}

/* 12. Stat Callout
   ------------------------------------------ */
.stat-callout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: 2rem 0;
}

.stat-item {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
}

.stat-item .stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: var(--spacing-xs);
}

.stat-item .stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* 13. Expert Quote
   ------------------------------------------ */
.expert-quote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--spacing-lg);
  margin: 2rem 0;
}

.expert-quote p {
  font-style: italic;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.expert-quote cite {
  display: block;
  font-style: normal;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.expert-quote .cite-name {
  font-weight: 600;
  color: var(--color-text);
}

.expert-quote .cite-title {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* 14. Article Sources
   ------------------------------------------ */
.article-sources {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 2rem;
}

.article-sources h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.75rem 0;
  color: var(--color-text);
}

.article-sources ol {
  padding-left: 1.25rem;
  margin: 0;
}

.article-sources ol li {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.375rem;
  line-height: 1.5;
}

.article-sources ol li a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-sources ol li a:hover {
  color: var(--color-primary-hover);
}

/* 15. Sidebar
   ------------------------------------------ */
.article-sidebar {
  position: sticky;
  top: 10vh;
  align-self: start;
}

.sidebar-widget {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  background: var(--color-bg);
}

.sidebar-widget h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--spacing-sm) 0;
}

/* Sidebar CTA */
.sidebar-cta {
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  border: none;
}

.sidebar-cta h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 var(--spacing-sm) 0;
}

.sidebar-cta p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
  margin: 0 0 var(--spacing-sm) 0;
}

.sidebar-cta ul {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-sm) 0;
}

.sidebar-cta ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.25rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
}

.sidebar-cta ul li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
}

.sidebar-cta .cta-button {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: #fff;
  color: var(--color-primary);
  text-align: center;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.sidebar-cta .cta-button:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-1px);
}

/* 16. Related Articles Sidebar
   ------------------------------------------ */
.sidebar-related-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

.sidebar-related-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.sidebar-related-item:first-of-type {
  padding-top: 0;
}

.sidebar-related-item img {
  width: 56px;
  height: 42px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-related-item .related-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  transition: color 0.2s ease;
}

.sidebar-related-item:hover .related-title {
  color: var(--color-primary);
}

/* 17. Trust Badges Sidebar
   ------------------------------------------ */
.sidebar-trust {
  text-align: center;
}

.sidebar-trust .trust-item {
  padding: var(--spacing-xs) 0;
}

.sidebar-trust .trust-item + .trust-item {
  border-top: 1px solid var(--color-border);
}

.sidebar-trust .trust-icon {
  display: inline;
  font-size: 1rem;
  margin-right: var(--spacing-xs);
  vertical-align: middle;
}

.sidebar-trust .trust-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

.sidebar-trust .trust-desc {
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
  line-height: 1.2;
}

/* 18. Bottom CTA Banner
   ------------------------------------------ */
.article-bottom-cta {
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: 3rem var(--spacing-md);
}

.article-bottom-cta h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 var(--spacing-sm) 0;
  line-height: 1.3;
}

.article-bottom-cta p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 var(--spacing-lg) 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.article-bottom-cta .cta-button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-2xl);
  background: #fff;
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.0625rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.article-bottom-cta .cta-button:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
}

/* 19. Related Articles Grid
   ------------------------------------------ */
.article-related {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-md);
}

.article-related h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--spacing-lg) 0;
  text-align: center;
}

.article-related .related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

/* 20. Affiliate Disclosure
   ------------------------------------------ */
.affiliate-disclosure {
  font-size: 0.8125rem;
  font-style: italic;
  color: var(--color-text-secondary);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

/* 21. Mobile Sticky CTA
   ------------------------------------------ */
.mobile-sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 150;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.mobile-sticky-cta.visible {
  transform: translateY(0);
}

.mobile-sticky-cta .sticky-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  flex: 1;
  line-height: 1.3;
}

.mobile-sticky-cta .cta-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: #fff;
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.8125rem;
  text-decoration: none;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

/* 22. Responsive Breakpoints
   ------------------------------------------ */

/* Tablet — 768px+ */
@media (min-width: 768px) {
  .article-hero h1 {
    font-size: 2.25rem;
  }

  .article-hero {
    height: 450px;
  }

  .article-hero-content {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .article-body h2 {
    font-size: 1.875rem;
  }

  .stat-callout {
    grid-template-columns: repeat(3, 1fr);
  }

  .data-table thead th {
    white-space: nowrap;
  }

  .article-related .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-bottom-cta h2 {
    font-size: 1.75rem;
  }
}

/* Desktop — 1024px+ */
@media (min-width: 1024px) {
  .article-hero {
    height: 500px;
  }

  .article-hero h1 {
    font-size: 2.5rem;
  }

  .article-layout {
    grid-template-columns: 1fr 320px;
    gap: 40px;
    align-items: start;
  }

  .article-related .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .mobile-sticky-cta {
    display: none;
  }

  .article-bottom-cta h2 {
    font-size: 2rem;
  }

  .article-bottom-cta p {
    font-size: 1.125rem;
  }
}