/* ===================================
   Articles List Page Styles
   =================================== */
   
/* Root Variables */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --max-width: 1400px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --border-color: #334155;
  }
}

/* Section Container */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* ===================================
   Section Header
   =================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.6;
}

/* ===================================
   Articles Controls (Search & Filters)
   =================================== */

.articles-controls {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-xl);
}

/* Search Box */
.search-box {
  width: 100%;
}

.search-form {
  display: flex;
  gap: var(--spacing-xs);
}

.search-input {
  flex: 1;
  padding: 0.875rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-btn {
  padding: 0.875rem 1.75rem;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.search-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Filter Controls */
.filter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
}

.filter-group,
.sort-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 250px;
}

.filter-group label,
.sort-group label {
  font-size: 0.938rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.filter-select,
.sort-select {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.938rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.filter-select:hover,
.sort-select:hover {
  border-color: var(--primary-color);
}

.filter-select:focus,
.sort-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ===================================
   Articles Grid - Optimisé
   =================================== */

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  width: 100%;
}

.article-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 2px solid transparent;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.article-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

/* Article Media */
.article-media {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

.article-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.article-card:hover .article-media img {
  transform: scale(1.08);
}

.article-emoji {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  font-size: 3.5rem;
}

/* Article Content */
.article-content {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--spacing-sm);
}

.article-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: 0;
}

.article-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--primary-color);
  color: white;
  border-radius: 2rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.article-date {
  font-size: 0.813rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

.article-excerpt {
  font-size: 0.938rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin: 0;
}

/* Article Footer */
.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-top: auto;
}

.author-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex: 1;
  min-width: 120px;
}

.author-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.article-stats {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.813rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.stat-icon {
  font-size: 0.938rem;
}

/* Article Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--bg-secondary);
  color: var(--primary-color);
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

.tag-more {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
}

/* ===================================
   Featured Articles
   =================================== */

.featured-articles {
  margin-bottom: var(--spacing-2xl);
}

.featured-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.featured-article-card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  border: 2px solid transparent;
}

.featured-article-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.featured-article-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.featured-image {
  width: 100%;
  height: 240px;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

.featured-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.4), transparent);
}

.featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.featured-article-card:hover .featured-image img {
  transform: scale(1.1);
}

.featured-emoji {
  width: 100%;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  font-size: 5rem;
  position: relative;
}

.featured-content {
  padding: var(--spacing-lg);
}

.featured-content .category-badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: white;
  border-radius: 2rem;
  font-size: 0.813rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
}

.featured-content h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}

.featured-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.featured-content .article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.featured-content .article-stats {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.938rem;
  color: var(--text-secondary);
}

/* ===================================
   Empty State
   =================================== */

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border-color);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-state p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================================
   Pagination
   =================================== */

.pagination {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.pagination-info {
  font-size: 0.938rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 var(--spacing-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.938rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.pagination-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pagination-btn.current-page {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: white;
  border-color: var(--primary-color);
  cursor: default;
  box-shadow: var(--shadow-md);
}

.pagination-btn.current-page:hover {
  transform: none;
}

.page-numbers {
  display: flex;
  gap: var(--spacing-xs);
}

.first-page,
.last-page {
  font-size: 1.125rem;
}

/* ===================================
   Responsive Design Optimisée
   =================================== */

/* Tablettes */
@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
  }
  
  .featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
  }
  
  .article-media {
    height: 180px;
  }
  
  .featured-image,
  .featured-emoji {
    height: 200px;
  }
}

/* Mobiles - Grands écrans */
@media (max-width: 768px) {
  .section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .section-title {
    font-size: 2.25rem;
  }

  .articles-controls {
    padding: var(--spacing-md);
  }

  .filter-controls {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
  }

  .filter-group,
  .sort-group {
    flex-direction: column;
    align-items: stretch;
    min-width: auto;
    gap: var(--spacing-xs);
  }

  .filter-group label,
  .sort-group label {
    font-size: 0.875rem;
  }

  .articles-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .article-content {
    padding: var(--spacing-sm);
    gap: var(--spacing-xs);
  }

  .article-title {
    font-size: 1.125rem;
  }

  .article-excerpt {
    font-size: 0.875rem;
    -webkit-line-clamp: 2;
  }

  .article-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .author-info {
    min-width: auto;
  }

  .article-stats {
    gap: var(--spacing-sm);
  }

  .stat {
    font-size: 0.75rem;
  }

  .pagination-controls {
    width: 100%;
  }

  .pagination-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    font-size: 0.875rem;
  }

  .prev-page,
  .next-page {
    font-size: 0.813rem;
  }
}

/* Mobiles - Petits écrans */
@media (max-width: 480px) {
  .section-title {
    font-size: 2rem;
  }

  .search-form {
    flex-direction: column;
  }

  .search-btn {
    width: 100%;
  }

  .articles-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .article-media {
    height: 160px;
  }

  .featured-image,
  .featured-emoji {
    height: 180px;
  }

  .featured-content h3 {
    font-size: 1.25rem;
  }

  .article-title {
    font-size: 1.125rem;
  }

  .article-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .article-date {
    font-size: 0.75rem;
  }

  .pagination-controls {
    gap: 0.25rem;
  }

  .page-numbers {
    gap: 0.25rem;
  }

  .pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-xs);
    font-size: 0.813rem;
  }

  .prev-page,
  .next-page {
    padding: 0 var(--spacing-sm);
    font-size: 0.75rem;
  }
}

/* Très petits écrans */
@media (max-width: 360px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .article-media {
    height: 140px;
  }
  
  .featured-image,
  .featured-emoji {
    height: 160px;
  }
  
  .article-content {
    padding: 0.75rem;
  }
  
  .article-title {
    font-size: 1rem;
  }
  
  .article-excerpt {
    font-size: 0.813rem;
  }
}


/* ===================================
   Loading State
   =================================== */

.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-2xl);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===================================
   Accessibility
   =================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus Styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Selection Styles */
::selection {
  background: var(--primary-color);
  color: white;
}

/* Reduce Motion for Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}