/* ============================================================
   blog.css — Index et articles du blog TornadoSearch
   ============================================================ */

/* ------------------------------------------------------------
   THÈME CLAIR FORCÉ POUR LE BLOG
   Le site prod est en thème SOMBRE (palette codée en dur dans :root
   de main.css). Le blog, lui, doit rester CLAIR (comme la preprod).
   On redéclare donc toute la palette en clair, scopée aux pages blog
   (spécificité body.classe > :root → gagne sur la prod comme sur la
   preprod). Tout main.css étant piloté par ces tokens, nav/footer/
   contenu basculent en clair automatiquement.
   ------------------------------------------------------------ */
body.blog-index-page,
body.blog-article-page {
  --bg-primary: #FAFAFA;
  --bg-secondary: #F8FAFC;
  --bg-tertiary: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FBFCFE;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --border-glow: rgba(255, 90, 0, 0.45);
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --accent: #FF5A00;
  --accent-light: #ff8f5a;
  --accent-dark: #E04E00;
  --accent-soft: rgba(255, 90, 0, 0.1);
  --accent-glow: rgba(255, 90, 0, 0.28);
  --gradient-text: linear-gradient(120deg, #FF5A00 0%, #ff8f3c 100%);
  --gradient-accent: linear-gradient(135deg, #ff7a35 0%, #FF5A00 100%);
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.07), 0 10px 10px -5px rgba(15, 23, 42, 0.03);

  /* Explicite au cas où : fond + texte clairs */
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Seule couleur sombre codée en dur qui touche les pages blog :
   le fond de la nav interne (rgba(10,10,15,.95) en prod) → blanc. */
body.blog-index-page nav.nav-inner-page,
body.blog-article-page nav.nav-inner-page {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.blog-index-wrapper,
.blog-article-wrapper {
  max-width: 1120px;
  margin: 0 auto;
  /* La nav "inner" est position:static (barre dans le flux) : pas de compensation
     de nav fixe ici, sinon gros trou blanc. On aligne sur les pages internes (~60px). */
  padding: 56px 24px 80px;
}

/* ---------- Index ---------- */
.blog-index-hero {
  text-align: center;
  margin-bottom: 56px;
}
.blog-index-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.blog-index-hero .lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}
.blog-card-link { display: block; color: inherit; text-decoration: none; }
.blog-card-media { aspect-ratio: 40 / 21; overflow: hidden; background: var(--bg-tertiary); }
.blog-card-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.blog-card-body { padding: 20px 22px 24px; }
.blog-card-category {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.blog-card-title { font-size: 1.25rem; line-height: 1.3; margin: 0 0 10px; letter-spacing: -0.01em; }
.blog-card-snippet { color: var(--text-secondary); font-size: .95rem; line-height: 1.55; margin: 0 0 16px; }
.blog-card-meta { font-size: .82rem; color: var(--text-muted); }

.blog-empty { text-align: center; color: var(--text-muted); padding: 60px 0; font-size: 1.05rem; }

.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 56px;
  font-weight: 500;
}
.blog-pagination a { color: var(--accent); text-decoration: none; }
.blog-pagination a:hover { text-decoration: underline; }
.blog-pagination-info { color: var(--text-muted); font-size: .9rem; }

/* ---------- Article ---------- */
.blog-preview-banner {
  max-width: 760px;
  margin: 0 auto 28px;
  padding: 12px 18px;
  border-radius: 10px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
  font-size: .92rem;
}

.blog-article { max-width: 760px; margin: 0 auto; }

/* Reset : main.css a une règle `nav { position:fixed; background:…; z-index:100 }`
   (la nav du site) qui capture AUSSI les <nav> internes du blog (fil d'Ariane,
   pagination) → barre fixe sombre en haut. On neutralise pour tout <nav> du blog. */
.blog-index-wrapper nav,
.blog-article-wrapper nav {
  position: static;
  padding: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: none;
  z-index: auto;
}

.blog-breadcrumb {
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.blog-breadcrumb a { color: var(--text-muted); text-decoration: none; }
.blog-breadcrumb a:hover { color: var(--accent); }

.blog-article-header { margin-bottom: 28px; }
.blog-article-category {
  display: inline-block;
  font-size: .74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.blog-article-header h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.blog-article-meta { color: var(--text-muted); font-size: .92rem; display: flex; gap: 10px; flex-wrap: wrap; }
.blog-article-author { font-weight: 600; color: var(--text-secondary); }

.blog-article-cover {
  margin: 0 0 36px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.blog-article-cover img { width: 100%; height: auto; display: block; }

/* Corps de l'article — typographie de lecture confortable */
.blog-article-body {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text-primary);
}
.blog-article-body h2 {
  font-size: 1.65rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 48px 0 18px;
  padding-top: 8px;
}
.blog-article-body h3 {
  font-size: 1.3rem;
  line-height: 1.3;
  margin: 34px 0 14px;
}
.blog-article-body p { margin: 0 0 20px; }
.blog-article-body ul,
.blog-article-body ol { margin: 0 0 22px; padding-left: 26px; }
.blog-article-body li { margin-bottom: 10px; }
.blog-article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.blog-article-body a:hover { color: var(--accent-dark); }
.blog-article-body strong { color: var(--text-primary); font-weight: 700; }
.blog-article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 28px 0;
  display: block;
}
.blog-article-body figure { margin: 28px 0; }
.blog-article-body blockquote {
  margin: 28px 0;
  padding: 6px 22px;
  border-left: 3px solid var(--accent);
  color: var(--text-secondary);
  font-style: italic;
}
.blog-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: .96rem;
}
.blog-article-body th,
.blog-article-body td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.blog-article-body th { background: var(--bg-tertiary); font-weight: 600; }

.blog-article-footer {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.blog-back-link { color: var(--accent); text-decoration: none; font-weight: 500; }
.blog-back-link:hover { text-decoration: underline; }

@media (max-width: 640px) {
  .blog-index-wrapper,
  .blog-article-wrapper { padding-top: 32px; }
}

/* ============================================================
   Éléments enrichis injectés par le backend (classes .tornadoseo)
   dans le HTML de l'article : encart IA, sommaire, FAQ, partage.
   Adaptés à la charte TornadoSearch (tokens + dark mode).
   ============================================================ */

/* Ancres du sommaire : léger décalage (nav statique, pas de recouvrement) */
.blog-article-body h2[id],
.blog-article-body h3[id] { scroll-margin-top: 24px; }

/* ---------- Encart « Résumer cet article avec : » ---------- */
.blog-article-body .tornadoseo.ai-summary-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 28px;
  padding: 12px 18px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.85em;
}
.blog-article-body .tornadoseo.ai-summary-label {
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 500;
}
.blog-article-body .tornadoseo.ai-summary-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
  color: var(--text-secondary);
  opacity: 0.75;
  transition: opacity 0.2s, transform 0.2s;
}
.blog-article-body .tornadoseo.ai-summary-link:hover {
  opacity: 1;
  transform: translateY(-1px);
  text-decoration: none;
}
.blog-article-body .tornadoseo.ai-summary-link img {
  width: 22px;
  height: 22px;
  display: block;
}
.blog-article-body .tornadoseo.ai-summary-link span { font-size: 0.95em; }

/* ---------- Sommaire (blog-toc) : encart en ligne ---------- */
.blog-article-body .tornadoseo.blog-toc {
  margin: 0 0 32px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
}
.blog-article-body .tornadoseo.toc-title {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}
.blog-article-body .tornadoseo.toc-list { list-style: none; margin: 0; padding: 0; }
.blog-article-body .tornadoseo.toc-list li {
  position: relative;
  padding-left: 1.25rem;
  margin: 9px 0;
  line-height: 1.35;
}
.blog-article-body .tornadoseo.toc-list li::before {
  content: '–';
  position: absolute;
  left: 0;
  top: 1px;
  font-weight: 600;
  color: var(--accent);
}
.blog-article-body .tornadoseo.toc-list li.toc-level-3 {
  padding-left: 2.25rem;
  margin: 6px 0;
  font-size: 0.9375em;
}
.blog-article-body .tornadoseo.toc-list li.toc-level-3::before { content: '·'; left: 1.1rem; }
.blog-article-body .tornadoseo.toc-list li > a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}
.blog-article-body .tornadoseo.toc-list li.active > a,
.blog-article-body .tornadoseo.toc-list li:hover > a {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- FAQ accordéon ---------- */
.blog-article-body .faq { margin-top: 24px; padding-top: 28px; border-top: 1px solid var(--border); }
.blog-article-body .faq h2 { margin-bottom: 18px; }
.blog-article-body .faq-item + .faq-item { margin-top: 0.9rem; }
.blog-article-body .faq-question {
  width: 100%;
  padding: 1.1rem 1.3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: background 0.2s, border-color 0.2s;
}
.blog-article-body .faq-question:hover,
.blog-article-body .faq-question:focus-visible {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  outline: none;
}
.blog-article-body .faq-toggle {
  flex: 0 0 1.1rem;
  height: 1.1rem;
  position: relative;
}
.blog-article-body .faq-toggle::before,
.blog-article-body .faq-toggle::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: translateY(-50%);
  transition: transform 0.25s;
}
.blog-article-body .faq-toggle::after { transform: translateY(-50%) rotate(90deg); }
.blog-article-body .faq-item.open .faq-toggle::after { transform: translateY(-50%) rotate(0deg); }
.blog-article-body .faq-answer-wrapper {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}
.blog-article-body .faq-item.open .faq-answer-wrapper { max-height: 1500px; }
.blog-article-body .faq-answer { padding: 0.9rem 0.4rem 0.3rem; }
.blog-article-body .faq-answer p { margin: 0.5rem 0; line-height: 1.6; color: var(--text-secondary); }

/* ---------- Barre de partage social ---------- */
.blog-article-body .tornadoseo.tornadoseo-social-share {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}
.blog-article-body .tornadoseo.tornadoseo-social-share ul {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 12px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 30px;
}
.blog-article-body .tornadoseo.tornadoseo-social-share ul li { display: inline-flex; }
.blog-article-body .tornadoseo.tornadoseo-social-share img {
  width: 30px;
  height: 30px;
  display: block;
  transition: transform 0.2s;
}
.blog-article-body .tornadoseo.tornadoseo-social-share img:hover { transform: scale(1.18); }

/* Note : le blog est toujours en thème clair (voir haut du fichier), donc les
   logos IA monochromes (gris foncé) restent lisibles ; aucun filtre nécessaire. */