/*
 * Blog archive — Institut du Mobile
 * Palette : slate profond (#1e2d3d) + terracotta (#c75c3a) + crème (#f7f3ee)
 * Typo  : DM Serif Display (titres) + DM Sans (corps)
 * Layout : éditorial asymétrique — article featured + grille 2-col décalée
 */

/* ── Variables ──────────────────────────────── */
:root {
  --idm-ink:        #1e2d3d;
  --idm-accent:     #c75c3a;
  --idm-accent-dk:  #a8452a;
  --idm-cream:      #f7f3ee;
  --idm-muted:      #6b7280;
  --idm-border:     #e5ded6;
  --idm-card-bg:    #ffffff;
  --idm-serif:      'DM Serif Display', Georgia, serif;
  --idm-sans:       'DM Sans', system-ui, sans-serif;
  --idm-r:          10px;
  --idm-shadow-sm:  0 2px 8px rgba(30, 45, 61, 0.07);
  --idm-shadow-md:  0 6px 24px rgba(30, 45, 61, 0.13);
}

/* ── Base page ──────────────────────────────── */
.idm-blog {
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  font-family: var(--idm-sans);
  color: var(--idm-ink);
}

/* ── En-tête ────────────────────────────────── */
.idm-blog__header {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 2px solid var(--idm-border);
}

.idm-blog__title {
  font-family: var(--idm-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;          /* Serif Display sonne déjà lourd à 400 */
  line-height: 1.15;
  margin: 0 0 10px;
  color: var(--idm-ink);
  letter-spacing: -0.02em;
}

.idm-blog__desc {
  font-size: 1rem;
  color: var(--idm-muted);
  margin: 0;
  max-width: 540px;
  line-height: 1.6;
}

/* ── Filtres catégories ─────────────────────── */
.idm-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.idm-filters__tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1.5px solid var(--idm-border);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--idm-ink);
  text-decoration: none;
  background: transparent;
  transition: border-color 0.18s, background 0.18s, color 0.18s;
  font-family: var(--idm-sans);
}

.idm-filters__tag:hover {
  border-color: var(--idm-accent);
  color: var(--idm-accent);
}

.idm-filters__tag--active {
  background: var(--idm-accent);
  border-color: var(--idm-accent);
  color: #fff;
}

/* ── Article Featured ───────────────────────── */
.idm-featured {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 0;
  background: var(--idm-cream);
  border-radius: var(--idm-r);
  overflow: hidden;
  margin-bottom: 52px;
  min-height: 360px;
  box-shadow: var(--idm-shadow-sm);
  /* Espacement asymétrique intentionnel */
  margin-top: -8px;
}

.idm-featured__thumb {
  display: block;
  overflow: hidden;
  order: 2;
}

.idm-featured__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.idm-featured:hover .idm-featured__thumb img {
  transform: scale(1.03);
}

.idm-featured__body {
  order: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 44px 48px 44px 44px;
}

.idm-featured__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--idm-accent);
  margin-bottom: 14px;
}

.idm-featured__title {
  font-family: var(--idm-serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.idm-featured__title a {
  color: var(--idm-ink) !important;
  text-decoration: none !important;
}

.idm-featured__title a:hover {
  color: var(--idm-accent) !important;
}

.idm-featured__excerpt {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #3d4f62;
  margin: 0 0 24px;
}

.idm-featured__foot {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.idm-featured__date {
  font-size: 0.8rem;
  color: var(--idm-muted);
}

.idm-featured__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--idm-accent) !important;
  text-decoration: none !important;
  transition: gap 0.2s ease, color 0.18s;
}

.idm-featured__cta:hover {
  color: var(--idm-accent-dk) !important;
  gap: 10px;
}

/* ── Grille articles (2 colonnes décalées) ───── */
.idm-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 32px;
  /* Offset vertical : colonne droite décalée */
  align-items: start;
}

/* Toutes les cartes paires décalées vers le bas — casse la symétrie */
.idm-grid .idm-card:nth-child(even) {
  margin-top: 32px;
}

/* ── Carte article ──────────────────────────── */
.idm-card {
  display: flex;
  flex-direction: column;
  background: var(--idm-card-bg);
  border-radius: var(--idm-r);
  overflow: hidden;
  border: 1px solid var(--idm-border);
  box-shadow: var(--idm-shadow-sm);
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}

.idm-card:hover {
  box-shadow: var(--idm-shadow-md);
  transform: translateY(-3px);
}

.idm-card__thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

.idm-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.idm-card:hover .idm-card__thumb img {
  transform: scale(1.05);
}

.idm-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px 22px 22px;
}

.idm-card__cat {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--idm-accent);
  margin-bottom: 8px;
  display: block;
}

.idm-card__title {
  font-family: var(--idm-serif);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.35;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.idm-card__title a {
  color: var(--idm-ink) !important;
  text-decoration: none !important;
}

.idm-card__title a:hover {
  color: var(--idm-accent) !important;
}

.idm-card__excerpt {
  font-size: 0.875rem;
  color: var(--idm-muted);
  line-height: 1.65;
  margin: 0 0 16px;
  flex: 1;
}

.idm-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--idm-muted);
  border-top: 1px solid var(--idm-border);
  padding-top: 12px;
  margin-top: auto;
}

.idm-card__link {
  font-weight: 600;
  color: var(--idm-accent) !important;
  text-decoration: none !important;
  transition: color 0.18s;
}

.idm-card__link:hover {
  color: var(--idm-accent-dk) !important;
}

/* ── Pagination ─────────────────────────────── */
.idm-pagination {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--idm-border);
}

.idm-pagination .nav-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.idm-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1.5px solid var(--idm-border);
  color: var(--idm-ink) !important;
  text-decoration: none !important;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  font-family: var(--idm-sans);
}

.idm-pagination .page-numbers.current,
.idm-pagination .page-numbers:hover {
  background: var(--idm-accent);
  color: #fff;
  border-color: var(--idm-accent);
}

.idm-pagination .page-numbers.dots {
  border-color: transparent;
  background: transparent;
}

/* ── Message vide ───────────────────────────── */
.idm-blog__empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--idm-muted);
  font-size: 1rem;
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 900px) {
  .idm-featured {
    grid-template-columns: 1fr;
    min-height: auto;
    margin-top: 0;
  }
  .idm-featured__thumb { order: 1; aspect-ratio: 16 / 7; }
  .idm-featured__body  { order: 2; padding: 28px 28px 32px; }

  .idm-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .idm-grid .idm-card:nth-child(even) { margin-top: 16px; }
}

@media (max-width: 600px) {
  .idm-blog { padding: 28px 16px 56px; }
  .idm-grid { grid-template-columns: 1fr; gap: 16px; }
  .idm-grid .idm-card:nth-child(even) { margin-top: 0; }
  .idm-featured__body { padding: 22px 20px 26px; }
}