/* --- BLOG --- */
#blog {
  padding: 100px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.blog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 20px;
}

.blog-header-controls {
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: flex-end;
}

.blog-search-wrapper {
  position: relative;
  width: 100%;
  max-width: 350px;
}

.blog-search-input {
  width: 100%;
  padding: 12px 45px 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: var(--bg-secondary);
  color: var(--text-main);
  font-size: 0.9rem;
  font-family: 'Outfit', sans-serif;
  outline: none;
  transition: 0.3s;
}

.blog-search-input:focus {
  border-color: var(--apps);
  box-shadow: 0 0 0 3px rgba(var(--apps-rgb), 0.1);
}

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

.blog-search-icon {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.blog-search-input:focus + .blog-search-icon {
  color: var(--apps);
}

.blog-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-btn {
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  background-color: var(--bg-secondary);
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 600;
  letter-spacing: 0.3px;
  outline: none;
}

.filter-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
  filter: brightness(1.1);
}

.filter-btn:active {
  transform: translateY(0);
}

.filter-btn:focus-visible {
  outline: 2px solid var(--apps);
  outline-offset: 4px;
  border-radius: 4px;
}

.filter-btn.filter-inactive:not([data-filter='all']) {
  background-color: var(--filter-bg, var(--bg-secondary));
  border-color: var(--filter-color, var(--border-color));
  color: var(--filter-color, var(--text-muted));
  font-weight: 600;
}

/* Les couleurs des filtres viennent des variables injectees par le JS. */
.filter-btn:not([data-filter='all']) {
  background-color: var(--filter-bg, var(--bg-secondary));
  border-color: var(--filter-color, var(--border-color));
  color: var(--filter-color, var(--text-muted));
}

/* Les etats d'affichage des cartes sont pilotes par des classes JS. */
.blog-card.card-hidden {
  opacity: 0;
  transform: scale(0.95);
  display: none;
}

.blog-card.card-visible {
  opacity: 1;
  transform: scale(1);
}

.blog-card.card-fade-in {
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

/* Les filtres colores utilisent un fond plein lorsqu'ils sont actifs. */
.filter-btn.active:not([data-filter='all']),
.filter-btn.filter-active:not([data-filter='all']),
.filter-btn:focus-visible:not([data-filter='all']) {
  background-color: var(--filter-color);
  border-color: var(--filter-color);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 4px 12px var(--shadow-medium);
  text-shadow: 0 1px 2px var(--text-shadow-soft);
}

.filter-btn[data-filter='all'] {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-muted);
}

.filter-btn[data-filter='all']:hover {
  background: var(--card-hover);
}

.filter-btn[data-filter='all'].active {
  background: var(--text-main);
  color: var(--bg-main);
  border-color: var(--text-main);
  font-weight: 700;
  box-shadow: 0 4px 12px var(--shadow-medium);
}

.blog-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 25px;
}

.blog-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 28px;
  padding: 30px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 15px;
  opacity: 1;
  transform: scale(1);
}

.blog-card:hover {
  border-color: var(--auto);
  background: var(--card-hover);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 40px var(--shadow-medium);
}

.blog-card:focus-visible {
  outline: 2px solid var(--apps);
  outline-offset: 4px;
  border-radius: 4px;
}

.blog-tag {
  font-size: 0.85rem;
  text-transform: none;
  font-weight: 600;
  letter-spacing: 0.3px;
  padding: 8px 18px;
  border-radius: 20px;
  width: fit-content;
  border: 1px solid;
  transition: 0.3s;
  background-color: var(--tag-bg, var(--bg-secondary));
  border-color: var(--tag-color, var(--border-color));
  color: var(--tag-color, var(--text-muted));
}

/* Les couleurs des tags viennent des variables injectees au rendu. */
.tag-apps,
.tag-auto,
.tag-data,
.tag-bi,
.tag-sp,
.tag-ai,
.tag-pages,
.tag-agents {
  border: 1px solid;
  transition: 0.3s;
}

.blog-tag:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
  filter: brightness(1.1);
}

.blog-card h4 {
  font-size: 1.4rem;
  line-height: 1.3;
  color: var(--text-main);
}

.blog-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.blog-footer {
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.blog-no-results {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}

.blog-no-results.is-visible {
  display: flex;
}

.blog-no-results svg {
  color: var(--text-muted);
  opacity: 0.5;
  margin-bottom: 20px;
}

.blog-no-results-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.blog-no-results-text {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 400px;
}

/* --- ANIMATIONS AU SCROLL --- */
.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}

.fade-in-section.fade-in-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-card {
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  transition:
    opacity 0.4s ease-out,
    transform 0.4s ease-out;
}

.fade-in-card.fade-in-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.read-more {
  color: var(--auto);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}