/* ════════════════════════════════════════════════════
   SMARTSUN – Blog CSS
   Palette: #173b59 (dark) | #1ab977 (green) | #ffffff
   ════════════════════════════════════════════════════ */

/* ─── HERO BLOG ─────────────────────────────────── */
.blog-hero {
  background: var(--dark);
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(26,185,119,.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(26,185,119,.08) 0%, transparent 50%);
  pointer-events: none;
}

.blog-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.blog-hero-content .section-label {
  display: inline-block;
  background: rgba(26,185,119,.15);
  color: var(--green);
  border: 1px solid rgba(26,185,119,.3);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.blog-hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -.04em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.blog-hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.65);
  line-height: 1.7;
  margin-bottom: 36px;
}

/* ─── FILTRES CATÉGORIES ─────────────────────────── */
.blog-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 60px;
}

.filter-btn {
  padding: 9px 22px;
  border-radius: 50px;
  border: 1.5px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s;
  font-family: 'Inter', sans-serif;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--dark);
  border-color: var(--dark);
  color: var(--white);
}

.filter-btn.active {
  background: var(--green);
  border-color: var(--green);
}

/* ─── GRILLE ARTICLES ────────────────────────────── */
.blog-section {
  background: var(--gray-100);
  padding: 80px 0 100px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Article featured (pleine largeur) */
.article-card.featured {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

/* ─── CARD ARTICLE ───────────────────────────────── */
.article-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: transform .3s, box-shadow .3s;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(23,59,89,.12);
  border-color: rgba(26,185,119,.25);
}

.article-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-600) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-card.featured .article-thumb {
  aspect-ratio: auto;
  min-height: 360px;
}

.article-thumb-icon {
  font-size: 5rem;
  opacity: .25;
  color: var(--green);
}

.article-thumb-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23,59,89,.9) 0%, rgba(26,185,119,.2) 100%);
}

.article-thumb-num {
  position: absolute;
  bottom: 16px;
  right: 20px;
  font-size: 5rem;
  font-weight: 900;
  color: rgba(255,255,255,.06);
  line-height: 1;
  letter-spacing: -.05em;
}

.article-cat {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--green);
  color: var(--white);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 50px;
}

.article-read-time {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(0,0,0,.45);
  color: rgba(255,255,255,.85);
  font-size: .72rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 50px;
  backdrop-filter: blur(6px);
}

.article-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.article-card.featured .article-body {
  padding: 48px 44px;
  justify-content: center;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .78rem;
  color: var(--gray-400);
}

.article-meta span { display: flex; align-items: center; gap: 4px; }

.article-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.3;
  letter-spacing: -.02em;
}

.article-card.featured .article-title {
  font-size: 1.8rem;
}

.article-excerpt {
  font-size: .9rem;
  color: var(--gray-600);
  line-height: 1.7;
  flex: 1;
}

.article-card.featured .article-excerpt {
  font-size: 1rem;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.article-tag {
  background: rgba(26,185,119,.1);
  color: var(--green-dark);
  border: 1px solid rgba(26,185,119,.2);
  font-size: .72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--green-dark);
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
  margin-top: 8px;
  transition: gap .2s;
}

.article-link:hover { gap: 10px; color: var(--green); }
.article-link i { font-size: .8rem; }

/* ─── SIDEBAR SEO ────────────────────────────────── */
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.blog-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sidebar-widget {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.sidebar-widget h4 {
  font-size: .95rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--green);
  letter-spacing: -.01em;
}

.sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-links li a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  color: var(--gray-600);
  text-decoration: none;
  transition: color .2s;
  font-weight: 500;
}

.sidebar-links li a:hover { color: var(--green-dark); }
.sidebar-links li a i { color: var(--green); font-size: .75rem; width: 14px; }

.sidebar-cta {
  background: var(--dark);
  border: none;
  color: var(--white);
  text-align: center;
}

.sidebar-cta h4 {
  color: var(--green-light);
  border-color: rgba(26,185,119,.3);
}

.sidebar-cta p {
  font-size: .88rem;
  color: rgba(255,255,255,.7);
  line-height: 1.6;
  margin-bottom: 18px;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar-tag {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
  font-size: .78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 50px;
  text-decoration: none;
  transition: all .2s;
}

.sidebar-tag:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* ─── PAGE ARTICLE INDIVIDUEL ────────────────────── */
.article-hero {
  background: var(--dark);
  padding: 150px 0 70px;
  position: relative;
  overflow: hidden;
}

.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 60%, rgba(26,185,119,.1) 0%, transparent 60%);
}

.article-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.article-hero .article-cat {
  position: static;
  display: inline-block;
  margin-bottom: 18px;
}

.article-hero-title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -.04em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: .85rem;
  color: rgba(255,255,255,.5);
}

.article-hero-meta span { display: flex; align-items: center; gap: 6px; }
.article-hero-meta i { color: var(--green); }

/* ─── CONTENU ARTICLE ────────────────────────────── */
.article-content-section {
  padding: 70px 0 100px;
  background: var(--white);
}

.article-content-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 60px;
  align-items: start;
}

.article-content {
  max-width: 100%;
}

.article-content h2 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.03em;
  margin: 48px 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gray-200);
}

.article-content h2:first-child { margin-top: 0; }

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin: 32px 0 14px;
}

.article-content p {
  font-size: 1.02rem;
  color: var(--gray-600);
  line-height: 1.85;
  margin-bottom: 18px;
}

.article-content strong { color: var(--dark); font-weight: 700; }

.article-content ul,
.article-content ol {
  padding-left: 22px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-content li {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.article-content .highlight-box {
  background: rgba(26,185,119,.08);
  border-left: 4px solid var(--green);
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin: 28px 0;
}

.article-content .highlight-box p {
  margin: 0;
  font-weight: 600;
  color: var(--dark);
}

.article-content .info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.article-content .info-card {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
}

.article-content .info-card .info-val {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--green);
  letter-spacing: -.04em;
  line-height: 1;
}

.article-content .info-card .info-lab {
  font-size: .82rem;
  color: var(--gray-600);
  font-weight: 600;
  margin-top: 4px;
}

/* FAQ dans l'article */
.article-content .faq-item {
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 0;
}

.article-content .faq-q {
  font-weight: 700;
  color: var(--dark);
  font-size: .98rem;
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.article-content .faq-q::before {
  content: 'Q.';
  color: var(--green);
  font-weight: 900;
  flex-shrink: 0;
}

.article-content .faq-a {
  font-size: .93rem;
  color: var(--gray-600);
  line-height: 1.7;
  padding-left: 28px;
  margin-bottom: 0;
}

/* CTA dans l'article */
.article-cta {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-600) 100%);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  margin: 48px 0;
}

.article-cta h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.article-cta p {
  color: rgba(255,255,255,.7);
  margin-bottom: 24px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a { color: rgba(255,255,255,.45); text-decoration: none; transition: color .2s; }
.breadcrumb a:hover { color: var(--green); }
.breadcrumb i { font-size: .65rem; }

/* Articles similaires */
.related-section {
  background: var(--gray-100);
  padding: 70px 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}

/* ─── RESPONSIVE BLOG ────────────────────────────── */
@media (max-width: 1024px) {
  .blog-layout { grid-template-columns: 1fr; }
  .blog-sidebar { position: static; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .article-card.featured { grid-column: span 2; grid-template-columns: 1fr; }
  .article-card.featured .article-thumb { min-height: 240px; }
  .article-content-layout { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .blog-hero { padding: 130px 0 60px; }
  .article-hero { padding: 120px 0 50px; }
}

@media (max-width: 768px) {
  /* Blog hero */
  .blog-hero { padding: 110px 18px 50px; }
  .blog-hero-title { font-size: clamp(1.9rem, 7vw, 2.8rem); }
  .blog-hero-subtitle { font-size: .95rem; }

  /* Filtres */
  .blog-filters { gap: 8px; }
  .filter-btn { padding: 7px 14px; font-size: .8rem; }

  /* Grille : 1 colonne */
  .blog-grid { grid-template-columns: 1fr; gap: 20px; }
  .article-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
  .article-card.featured .article-thumb { min-height: 200px; }
  .article-card.featured .article-body { padding: 24px 20px; }
  .article-card.featured .article-title { font-size: 1.25rem; }

  /* Cards */
  .article-body { padding: 20px; }
  .article-title { font-size: 1.05rem; }

  /* Articles liés */
  .related-grid { grid-template-columns: 1fr; gap: 16px; }

  /* Article hero */
  .article-hero { padding: 100px 18px 40px; }
  .article-hero-title { font-size: clamp(1.7rem, 6vw, 2.4rem); }
  .article-hero-meta { gap: 12px; font-size: .8rem; flex-wrap: wrap; }

  /* Contenu article */
  .article-content-section { padding: 40px 0 60px; }
  .article-content h2 { font-size: 1.35rem; margin: 36px 0 14px; }
  .article-content h3 { font-size: 1.1rem; }
  .article-content p { font-size: .97rem; }
  .article-content .info-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .article-content .info-card .info-val { font-size: 1.5rem; }
  .article-cta { padding: 28px 20px; }
  .article-cta h3 { font-size: 1.25rem; }

  /* Sidebar */
  .blog-sidebar { gap: 20px; }
  .sidebar-widget { padding: 20px; }

  /* Breadcrumb */
  .breadcrumb { font-size: .78rem; gap: 6px; }
}

@media (max-width: 480px) {
  .blog-hero { padding: 100px 14px 40px; }
  .article-hero { padding: 95px 14px 36px; }
  .article-content .info-grid { grid-template-columns: 1fr; }
  .filter-btn { padding: 6px 12px; font-size: .78rem; }
  .article-body { padding: 16px; }
  .article-cta { padding: 22px 16px; }
  .sidebar-widget { padding: 16px; }
}