/* ============================================================
   BLOG.CSS — Styles spécifiques à la page article de blog
============================================================ */

/* --- Barre de progression de lecture --- */
#reading-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: var(--color-blue);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* --- HERO article --- */
.article-hero {
  background-color: var(--color-dark);
  background-image: radial-gradient(circle, rgba(56,182,255,0.18) 1px, transparent 1px);
  background-size: 32px 32px;
  padding: 120px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.article-hero::before {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(56,182,255,0.10) 0%, transparent 70%);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255,255,255,0.45); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--color-blue); }
.breadcrumb-sep { opacity: 0.4; font-size: 0.7rem; }
.breadcrumb-current { color: rgba(255,255,255,0.7); }

.article-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(56,182,255,0.15);
  border: 1px solid var(--color-blue);
  color: var(--color-blue);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.article-hero-h1 {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.25;
  max-width: 800px;
  margin: 0 auto 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta-item svg { width: 14px; height: 14px; flex-shrink: 0; }

/* Image couverture en négatif */
.article-cover-wrap {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: -60px auto 0;
  padding: 0 24px;
}

.article-cover-wrap img,
.article-cover-placeholder {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.25);
  display: block;
}

.article-cover-placeholder {
  background: var(--color-light);
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 500;
}

/* --- LAYOUT 2 colonnes --- */
.article-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 72px 24px 80px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 48px 20px 64px;
  }
}

/* --- SOMMAIRE --- */
.article-sidebar {
  position: sticky;
  top: 96px;
}

.sidebar-heading {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 16px;
}

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

.toc-list a {
  display: block;
  font-size: 0.88rem;
  color: var(--color-text);
  padding: 6px 0 6px 12px;
  border-left: 2px solid transparent;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
  line-height: 1.45;
}

.toc-list a:hover {
  color: var(--color-dark);
  border-left-color: rgba(56,182,255,0.4);
}

.toc-list a.active {
  border-left-color: var(--color-blue);
  color: var(--color-dark);
  font-weight: 600;
}

/* Partage */
.sidebar-divider {
  border-top: 1px solid #E5E7EB;
  margin: 24px 0;
  padding-top: 24px;
}

.share-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-share-linkedin {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #0A66C2;
  color: white;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s;
  font-family: inherit;
}
.btn-share-linkedin:hover { opacity: 0.88; }

.btn-copy-link {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-gray-bg);
  border: 1px solid #E5E7EB;
  color: var(--color-dark);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  font-family: inherit;
  width: 100%;
  text-align: left;
}
.btn-copy-link:hover { border-color: var(--color-blue); background: white; }

/* --- CORPS DE L'ARTICLE --- */
.article-content { min-width: 0; }

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-text);
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin: 48px 0 20px;
  padding-top: 16px;
  scroll-margin-top: 96px;
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 36px 0 16px;
  scroll-margin-top: 96px;
}

.article-body p { margin-bottom: 20px; }

.article-body strong { color: var(--color-dark); font-weight: 600; }

.article-body ul {
  padding-left: 24px;
  margin-bottom: 20px;
}

.article-body ul li {
  margin-bottom: 10px;
  list-style: disc;
}

.article-body a {
  color: var(--color-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body blockquote {
  border-left: 4px solid var(--color-blue);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--color-light);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--color-dark);
  font-size: 1.05rem;
  line-height: 1.7;
}

.article-body img {
  border-radius: 12px;
  margin: 32px auto;
  display: block;
  max-width: 100%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

/* Chapeau */
.article-intro {
  font-size: 1.12rem;
  font-weight: 500;
  color: var(--color-dark);
  line-height: 1.8;
  padding: 24px 28px;
  background: var(--color-light);
  border-radius: 12px;
  margin-bottom: 32px;
  border-left: 3px solid var(--color-blue);
}

/* Image placeholder inline */
.img-placeholder {
  background: var(--color-light);
  border-radius: 12px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  margin: 32px auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}

/* Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid #E5E7EB;
}

.article-tag {
  font-size: 0.8rem;
  background: var(--color-gray-bg);
  color: var(--color-text);
  border-radius: 4px;
  padding: 4px 10px;
  font-weight: 500;
}

/* --- NEWSLETTER --- */
.newsletter-section {
  background: var(--color-dark);
  padding: 80px 24px;
}

.newsletter-box {
  max-width: 580px;
  margin: 0 auto;
  border: 1px solid rgba(56,182,255,0.25);
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
}

.newsletter-icon {
  margin-bottom: 16px;
}

.newsletter-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
}

.newsletter-subtitle {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.65;
  margin-bottom: 28px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 220px;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: white;
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-form input[type="email"]::placeholder { color: rgba(255,255,255,0.4); }
.newsletter-form input[type="email"]:focus { border-color: var(--color-blue); }

/* --- ARTICLES LIÉS --- */
.related-section {
  background: var(--color-gray-bg);
  padding: 80px 0;
}

.related-subtitle {
  font-size: 0.95rem;
  color: var(--color-text);
  text-align: center;
  margin-top: 8px;
  margin-bottom: 48px;
}

.blog-card-current {
  opacity: 0.65;
  pointer-events: none;
}

.badge-current {
  display: inline-block;
  background: rgba(56,182,255,0.15);
  color: var(--color-blue);
  border-radius: 4px;
  font-size: 0.78rem;
  padding: 3px 10px;
  font-weight: 600;
  margin-top: 8px;
}

.blog-link-disabled {
  color: var(--color-text);
  opacity: 0.4;
  pointer-events: none;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

/* --- CTA FINAL --- */
.page-cta {
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-dark) 100%);
  padding: 80px 0;
  text-align: center;
}
.page-cta-title { font-size: 2.2rem; font-weight: 700; color: white; margin-bottom: 20px; line-height: 1.25; }
.page-cta-subtitle { font-size: 1.05rem; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 36px; line-height: 1.75; }
.page-cta-email { margin-top: 20px; font-size: 0.85rem; color: rgba(255,255,255,0.55); }
.page-cta-email a { color: rgba(255,255,255,0.7); text-decoration: underline; }

@media (max-width: 767px) {
  .article-hero-h1 { font-size: 1.7rem; }
  .article-meta { gap: 12px; }
  .newsletter-box { padding: 32px 24px; }
  .page-cta-title { font-size: 1.7rem; }
}