/* ===================================================================
   VPRR ARTICLE - Styles spécifiques (Apple-inspired Design)
   =================================================================== */

/* ===================================================================
   1. BREADCRUMB (Fil d'Ariane)
   =================================================================== */

.breadcrumb {
  padding: var(--space-md) 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
}

.breadcrumb-item a i {
  font-size: 0.75rem;
}

.breadcrumb-separator {
  color: var(--color-text-muted);
  font-size: 0.625rem;
  padding: 0 var(--space-xs);
}

.breadcrumb-item.current {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

.breadcrumb-item.current span {
  max-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: inline-block;
  vertical-align: middle;
}

/* ===================================================================
   2. ARTICLE HEADER
   =================================================================== */

.article-header {
  padding: var(--space-3xl) 0 var(--space-xl);
  background: var(--color-surface);
  text-align: center;
}

.article-meta-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.article-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-white);
  background: var(--brand-accent);
  border-radius: var(--radius-sm);
}

.article-meta-info {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.meta-separator {
  color: var(--color-border);
}

.read-time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin: 0 auto var(--space-md);
  color: var(--color-text);
}

.article-description {
  font-size: 1.25rem;
  color: var(--color-text-light);
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

/* ===================================================================
   3. ARTICLE HERO IMAGE
   =================================================================== */

.article-hero-image {
  padding-bottom: var(--space-2xl);
  background: var(--color-surface);
}

.hero-image-wrapper {
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(45, 36, 30, 0.12);
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ===================================================================
   4. ARTICLE BODY & LAYOUT
   =================================================================== */

.article-body {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.article-content-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* Sidebar - Sommaire */
.article-sidebar {
  position: relative;
}

.sidebar-sticky {
  position: sticky;
  top: calc(var(--header-height) + var(--space-xl));
}

.sidebar-title {
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.toc {
  background: var(--color-surface);
  border-radius: 16px;
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: 0 2px 12px rgba(45, 36, 30, 0.06);
}

.toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc li {
  margin-bottom: var(--space-xs);
}

.toc li:last-child {
  margin-bottom: 0;
}

.toc a {
  display: block;
  padding: var(--space-xs) 0;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: var(--space-sm);
  margin-left: calc(-1 * var(--space-sm));
  transition: all 0.2s ease;
}

.toc a:hover {
  color: var(--color-primary);
  border-left-color: var(--brand-accent);
}

.toc li.toc-h2 a {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.toc li.toc-h3 {
  padding-left: var(--space-md);
}

.toc li.toc-h3 a {
  font-size: 0.875rem;
}

.sidebar-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, #522e0e 100%);
  border-radius: 16px;
  padding: var(--space-lg);
  color: var(--color-white);
  text-align: center;
}

.sidebar-cta p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
  color: rgba(255, 255, 255, 0.9);
}

.sidebar-cta .btn {
  width: 100%;
  justify-content: center;
}

.sidebar-cta .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.sidebar-cta .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
}

/* Content principal */
.article-content {
  background: var(--color-surface);
  border-radius: 24px;
  padding: var(--space-3xl);
  box-shadow: 0 4px 24px rgba(45, 36, 30, 0.06);
}

/* Typographie article */
.article-content h2 {
  font-size: 1.75rem;
  font-weight: var(--font-weight-semibold);
  margin: var(--space-2xl) 0 var(--space-md);
  color: var(--color-text);
  text-align: left;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-size: 1.375rem;
  font-weight: var(--font-weight-semibold);
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--color-text);
}

.article-content p {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.article-content p:first-child {
  font-size: 1.125rem;
  color: var(--color-text);
}

.article-content ul {
  list-style: disc;
  padding-left: var(--space-xl);
}

.article-content ol {
  list-style: decimal;
  padding-left: var(--space-xl);
}

.article-content li {
  margin-bottom: var(--space-xs);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text-light);
}

.article-content strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

.article-content blockquote {
  margin: var(--space-xl) 0;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-surface-alt);
  border-left: 4px solid var(--brand-accent);
  border-radius: 0 12px 12px 0;
}

.article-content blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--color-text);
}

.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: var(--brand-accent);
  text-underline-offset: 3px;
  transition: all 0.2s ease;
}

.article-content a:hover {
  color: var(--brand-accent);
  text-decoration-color: var(--brand-accent);
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: var(--space-xl) 0;
}

.article-content figure {
  margin: var(--space-xl) 0;
}

.article-content figure img {
  margin: 0 0 var(--space-sm);
}

/* Vidéos embed responsive */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* Ratio 16:9 */
  height: 0;
  overflow: hidden;
  max-width: 100%;
  margin: var(--space-xl) 0;
  border-radius: 16px;
  background: var(--color-surface-alt);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 16px;
}

.article-content figcaption {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
}

.article-content hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-2xl) 0;
}

/* ===================================================================
   5. TAGS & SHARE
   =================================================================== */

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.tags-label {
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tag-link {
  display: inline-flex;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  background: var(--color-surface-alt);
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: all 0.2s ease;
}

.tag-link:hover {
  background: var(--brand-accent-light);
  color: var(--color-primary);
}

/* Share buttons */
.article-share {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.share-label {
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.share-buttons {
  display: flex;
  gap: var(--space-sm);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--color-white);
  text-decoration: none;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  background: var(--brand-accent);
}

.share-btn.facebook {
  background: var(--brand-accent);
}

.share-btn.twitter {
  background: var(--brand-accent);
}

.share-btn.linkedin {
  background: var(--brand-accent);
}

.share-btn.email {
  background: var(--brand-accent);
}

.share-btn.copy {
  background: var(--color-text-light);
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ===================================================================
   6. ARTICLE NAVIGATION
   =================================================================== */

.article-navigation {
  padding: var(--space-3xl) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.nav-articles {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-xl);
}

.nav-article {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  background: var(--color-surface-alt);
  border-radius: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-article:hover {
  background: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(45, 36, 30, 0.08);
}

.nav-article.prev {
  align-items: flex-start;
  text-align: left;
}

.nav-article.next {
  align-items: flex-end;
  text-align: right;
}

.nav-article.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.nav-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.nav-title {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.nav-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-back:hover {
  color: var(--color-primary);
  border-color: var(--brand-accent);
}

/* ===================================================================
   7. CTA SECTION
   =================================================================== */

.article-cta {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.article-cta .cta-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  padding: var(--space-3xl);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-alt) 100%);
  border-radius: 32px;
  box-shadow: 0 4px 24px rgba(45, 36, 30, 0.08);
}

.cta-icon {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-accent-light);
  border-radius: 50%;
}

.cta-icon i {
  font-size: 2rem;
  color: var(--brand-accent);
}

.article-cta .cta-content {
  flex: 1;
  min-width: 300px;
}

.article-cta .cta-content h2 {
  text-align: left;
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.article-cta .cta-content p {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  background: transparent;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-outline:hover {
  background: var(--color-surface-alt);
  border-color: var(--brand-accent);
  color: var(--color-text);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

/* ===================================================================
   8. FOOTER
   =================================================================== */

.blog-footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand img {
  height: 32px;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* ===================================================================
   9. RESPONSIVE
   =================================================================== */

@media (max-width: 1024px) {
  .article-content-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .article-sidebar {
    order: -1;
  }
  
  .sidebar-sticky {
    position: static;
  }
  
  .toc {
    max-height: 300px;
    overflow-y: auto;
  }
}

@media (max-width: 768px) {
  .article-header {
    padding: var(--space-2xl) 0 var(--space-lg);
  }
  
  .article-title {
    font-size: 1.75rem;
  }
  
  .article-description {
    font-size: 1rem;
  }
  
  .hero-image-wrapper {
    border-radius: 16px;
  }
  
  .article-content {
    padding: var(--space-xl);
    border-radius: 16px;
  }
  
  .article-content h2 {
    font-size: 1.5rem;
  }
  
  .article-content h3 {
    font-size: 1.25rem;
  }
  
  .nav-articles {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .nav-article.prev,
  .nav-article.next {
    align-items: center;
    text-align: center;
  }
  
  .nav-back {
    order: -1;
  }
  
  .article-cta .cta-card {
    padding: var(--space-xl);
    text-align: center;
  }
  
  .article-cta .cta-icon {
    margin: 0 auto;
  }
  
  .article-cta .cta-content h2 {
    text-align: center;
  }
  
  .cta-actions {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .breadcrumb-item.current span {
    max-width: 120px;
  }
  
  .article-content {
    padding: var(--space-lg);
  }
  
  .article-tags {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .article-share {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
}