/* ============================================================
   Blog — L'Atelier Numéro Treize
   Cohérent avec style.css (variables CSS partagées)
   ============================================================ */

/* ── Filtres ──────────────────────────────────────────────────── */
.blog-filters {
  border-bottom: var(--border);
  padding-block: 1.5rem;
  background: var(--white);
  position: sticky;
  top: 68px;
  z-index: 50;
}
.blog-filters__inner {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.blog-filters__group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.blog-filters__label {
  font-family: var(--font-title);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-400);
  white-space: nowrap;
}
.blog-filters__btns {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.blog-filter-btn {
  font-family: var(--font-title);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.3rem 0.85rem;
  border-radius: 100px;
  border: 1.5px solid var(--grey-150, #e4e4e0);
  color: var(--grey-700);
  background: var(--white);
  transition: all var(--t);
  white-space: nowrap;
  text-decoration: none;
}
.blog-filter-btn:hover { border-color: var(--black); color: var(--black); }
.blog-filter-btn.is-active {
  background: var(--black);
  border-color: var(--black);
  color: var(--white);
}

/* ── Grille d'articles ───────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.blog-grid--similar {
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* ── Carte article ────────────────────────────────────────────── */
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.07);
  border-color: var(--grey-300);
}
.blog-card__cover {
  display: block;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--off-white);
  position: relative;
}
.blog-card__cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}
.blog-card:hover .blog-card__cover img { transform: scale(1.04); }
.blog-card__cover--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--off-white);
}
.blog-card__cat-badge {
  font-family: var(--font-title);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-400);
}
.blog-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.blog-card__cat {
  font-family: var(--font-title);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--off-white);
  padding: 0.15rem 0.6rem;
  border-radius: 100px;
  color: var(--grey-600);
}
.blog-card__date,
.blog-card__time {
  font-family: var(--font-title);
  font-size: 0.72rem;
  color: var(--grey-400);
}
.blog-card__date::before,
.blog-card__time::before { content: '· '; }
.blog-card__title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0;
}
.blog-card__title a { color: var(--black); text-decoration: none; }
.blog-card__title a:hover { color: var(--grey-700); }
.blog-card__desc {
  font-size: var(--text-sm);
  color: var(--grey-600);
  line-height: 1.6;
  flex: 1;
}

/* ── Pagination ───────────────────────────────────────────────── */
.blog-pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3rem;
}
.blog-pagination__btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  border: 1.5px solid var(--grey-150, #e4e4e0);
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--grey-700);
  text-decoration: none;
  transition: all var(--t);
}
.blog-pagination__btn:hover { border-color: var(--black); color: var(--black); }
.blog-pagination__btn.is-active { background: var(--black); border-color: var(--black); color: var(--white); }

/* ── Article hero ─────────────────────────────────────────────── */
.article-hero {
  padding-top: calc(68px + clamp(3rem, 6vw, 5rem));
  padding-bottom: clamp(2rem, 4vw, 3.5rem);
  background: var(--off-white);
}
.article-hero__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}
.article-hero__back {
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--grey-500);
  text-decoration: none;
  transition: color var(--t);
}
.article-hero__back:hover { color: var(--black); }
.article-hero__title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 3.75rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  max-width: 18ch;
}
.article-hero__info {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  flex-wrap: wrap;
  font-family: var(--font-title);
  font-size: var(--text-sm);
  color: var(--grey-500);
  max-width: 680px;
}

/* ── Image à la une ──────────────────────────────────────────── */
.article-cover {
  margin-bottom: clamp(3rem, 5vw, 5rem);
}
.article-cover img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  display: block;
}

/* ── Layout article (sidebar TOC + contenu) ──────────────────── */
.article-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(3rem, 5vw, 6rem);
  align-items: start;
}

/* ── Sommaire ─────────────────────────────────────────────────── */
.article-toc {
  position: sticky;
  top: 88px;
}
.article-toc__title {
  font-family: var(--font-title);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-400);
  margin-bottom: 0.75rem;
}
.article-toc__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-left: 2px solid var(--grey-100);
  padding-left: 1rem;
}
.article-toc__list a {
  font-family: var(--font-title);
  font-size: 0.8rem;
  color: var(--grey-500);
  text-decoration: none;
  line-height: 1.4;
  transition: color var(--t);
  display: block;
}
.article-toc__list a:hover { color: var(--black); }

/* ── Contenu Markdown ─────────────────────────────────────────── */
.article-content {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--grey-800, #2a2a26);
  max-width: 68ch;
}
.article-content h2 {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-top: 3rem;
  margin-bottom: 1rem;
  scroll-margin-top: 90px;
  color: var(--black);
}
.article-content h3 {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--black);
}
.article-content p { margin-bottom: 1.25rem; }
.article-content ul,
.article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.article-content li { line-height: 1.7; }
.article-content strong { font-weight: 700; color: var(--black); }
.article-content em { font-style: italic; }
.article-content a { color: var(--black); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--grey-700); }
.article-content blockquote {
  border-left: 3px solid var(--black);
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  background: var(--off-white);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--grey-700);
}
.article-content code {
  font-family: monospace;
  font-size: 0.88em;
  background: var(--off-white);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--grey-700);
}
.article-content pre {
  background: var(--black);
  color: #e8e8e0;
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
}
.article-content pre code { background: none; color: inherit; padding: 0; }
.article-content img {
  width: 100%;
  border-radius: var(--radius);
  margin-block: 1.5rem;
}
.article-content hr {
  border: none;
  border-top: var(--border);
  margin-block: 2.5rem;
}

/* ── Partage ──────────────────────────────────────────────────── */
.article-share {
  padding-block: 2rem;
  border-top: var(--border);
  border-bottom: var(--border);
  margin-bottom: 0;
}
.article-share__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.article-share__label {
  font-family: var(--font-title);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-400);
}
.article-share__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-title);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--grey-150, #e4e4e0);
  color: var(--black);
  background: var(--white);
  cursor: pointer;
  transition: all var(--t);
  text-decoration: none;
}
.article-share__btn:hover { border-color: var(--black); background: var(--black); color: var(--white); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid--similar { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { position: static; display: none; }
}
@media (max-width: 768px) {
  .blog-grid { grid-template-columns: 1fr; }
  .blog-grid--similar { grid-template-columns: 1fr; }
  .blog-filters { top: 60px; }
  .blog-filters__inner { gap: 1rem; }
  .article-hero__title { font-size: clamp(1.75rem, 7vw, 2.5rem); }
  .article-hero__info { flex-direction: column; gap: 0.35rem; }
  .article-content { font-size: var(--text-base); }
}