/* ============================================================
   ARTICLES - index (source : maquette articles). Scopé .articles-index.
   ============================================================ */
.articles-index .hero {
  padding: var(--hero-top) var(--gutter) 5rem;
  border-bottom: 1px solid var(--ink);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: end;
}
.articles-index .hero-left { max-width: 920px; }
.articles-index .marker {
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.28em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.75rem;
}
.articles-index .marker .sep { margin: 0 0.65rem; color: var(--ink-4); }
.articles-index .hero-title {
  font-family: var(--display);
  font-size: clamp(5rem, 12vw, 11rem);
  font-weight: 400; line-height: 0.85; letter-spacing: -0.015em;
  text-transform: uppercase; color: var(--ink); margin-bottom: 1.5rem;
}
.articles-index .hero-lede {
  font-size: 1.05rem; font-weight: 300; line-height: 1.65;
  color: var(--ink-2); max-width: 64ch;
}
.articles-index .hero-count { text-align: right; }
.articles-index .hero-count .num { font-family: var(--display); font-size: clamp(3rem, 5vw, 5rem); font-weight: 400; line-height: 0.9; color: var(--ink); }
.articles-index .hero-count .label { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); margin-top: 0.5rem; }

/* FEATURED */
.articles-index .featured { padding: 6rem var(--gutter) 5rem; border-bottom: 1px solid var(--line); }
.articles-index .featured-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 4rem; align-items: center; text-decoration: none; color: inherit; }
.articles-index .featured-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--ink); }
.articles-index .featured-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: filter 0.5s, transform 0.5s; }
.articles-index .featured-inner:hover .featured-media img { filter: grayscale(0%); transform: scale(1.02); }
.articles-index .featured-media.fallback { display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#2a2a2a,#4a4a4a); }
.articles-index .featured-media.fallback::after { content: attr(data-title); font-family: var(--display); color: rgba(255,255,255,0.4); font-size: 2rem; text-align: center; padding: 1rem; }
.articles-index .featured-meta { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.5rem; display: flex; align-items: center; gap: 1rem; }
.articles-index .featured-meta .pill { background: var(--ink); color: var(--paper); padding: 0.4rem 0.8rem; font-family: var(--display); letter-spacing: 0.14em; font-size: 0.7rem; }
.articles-index .featured-title { font-family: var(--display); font-size: clamp(2.5rem, 4.5vw, 4.5rem); font-weight: 400; line-height: 0.92; text-transform: uppercase; color: var(--ink); margin-bottom: 1.5rem; }
.articles-index .featured-excerpt { font-size: 1.05rem; font-weight: 300; line-height: 1.7; color: var(--ink-2); margin-bottom: 2rem; max-width: 56ch; }
.articles-index .featured-cta { display: inline-flex; align-items: center; gap: 0.75rem; font-size: 0.78rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink); padding-bottom: 0.4rem; border-bottom: 1px solid var(--ink); }
.articles-index .featured-cta .arrow { transition: transform 0.25s; }
.articles-index .featured-inner:hover .featured-cta .arrow { transform: translateX(4px); }

/* GRID + FILTRES */
.articles-index .grid-section { padding: 6rem var(--gutter) 7rem; border-bottom: 1px solid var(--ink); }
.articles-index .grid-head { display: flex; align-items: end; justify-content: space-between; margin-bottom: 4rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.articles-index .grid-head h2 { font-family: var(--display); font-size: clamp(1.75rem, 3vw, 3rem); font-weight: 400; letter-spacing: 0.02em; text-transform: uppercase; line-height: 1; }
.articles-index .grid-head .count { font-size: 0.78rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); }
.articles-index .filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 3.5rem; padding-bottom: 2rem; border-bottom: 1px solid var(--line); }
.articles-index .filter-chip {
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3); background: transparent; border: 1px solid var(--line); padding: 0.65rem 1.1rem;
  cursor: pointer; transition: background 0.2s, color 0.2s, border-color 0.2s; display: inline-flex; align-items: center; gap: 0.6rem;
}
.articles-index .filter-chip:hover { border-color: var(--ink); color: var(--ink); }
.articles-index .filter-chip.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.articles-index .filter-chip .chip-count { font-family: var(--display); font-size: 0.7rem; opacity: 0.6; }
.articles-index .grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4rem 3rem; }
.articles-index .card { display: flex; flex-direction: column; gap: 1.5rem; text-decoration: none; color: inherit; transition: opacity 0.3s, transform 0.3s; }
.articles-index .card.hidden { display: none; }
.articles-index .card-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--ink); }
.articles-index .card-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: filter 0.5s, transform 0.5s; }
.articles-index .card:hover .card-media img { filter: grayscale(0%); transform: scale(1.03); }
.articles-index .card-media.fallback { display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#2a2a2a,#4a4a4a); }
.articles-index .card-media.fallback::after { content: attr(data-title); font-family: var(--display); color: rgba(255,255,255,0.35); font-size: 1.4rem; text-align: center; padding: 1rem; }
.articles-index .card-meta { font-size: 0.7rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); }
.articles-index .card-title { font-family: var(--display); font-size: clamp(1.6rem, 2.5vw, 2.2rem); font-weight: 400; line-height: 0.95; text-transform: uppercase; color: var(--ink); transition: color 0.2s; }
.articles-index .card:hover .card-title { color: var(--ink-3); }
.articles-index .card-excerpt { font-size: 0.95rem; font-weight: 300; line-height: 1.65; color: var(--ink-2); max-width: 58ch; }
.articles-index .card-cta { display: inline-flex; align-items: center; gap: 0.65rem; font-size: 0.72rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink); margin-top: 0.25rem; }
.articles-index .card-cta .arrow { transition: transform 0.25s; }
.articles-index .card:hover .card-cta .arrow { transform: translateX(4px); }

/* Recherche : formulaire dans le hero + état vide */
.articles-index .search-form { display: flex; align-items: center; max-width: 480px; margin-top: 1.75rem; border-bottom: 1px solid var(--ink); }
.articles-index .search-form input { flex: 1; border: 0; background: transparent; font-family: var(--sans); font-size: 1rem; padding: 0.65rem 0; color: var(--ink); outline: none; }
.articles-index .search-form input::placeholder { color: var(--ink-4); }
.articles-index .search-form button { background: transparent; border: 0; cursor: pointer; padding: 0 0.4rem; color: var(--ink); display: flex; }
.articles-index .search-form svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.articles-index .no-results { padding: 2rem 0 4rem; }
.articles-index .no-results p { font-size: 1.1rem; color: var(--ink-2); margin-bottom: 1.5rem; }
.articles-index .no-results-link {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--display); font-size: 1rem; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--ink); padding-bottom: 0.25rem;
}

@media (max-width: 900px) {
  .articles-index .hero { padding: var(--hero-top) var(--gutter) 4rem; grid-template-columns: 1fr; gap: 2.5rem; }
  .articles-index .hero-count { text-align: left; }
  .articles-index .featured-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .articles-index .grid { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
}
@media (max-width: 600px) {
  .articles-index .grid { grid-template-columns: 1fr; }
}