/* ============================================================
   ELEGANCE LEARNING AI — Détail Actualité
   ============================================================ */

/* ---- Hero ------------------------------------------------- */
.d-hero{position:relative;background:var(--bleu-nuit);overflow:hidden;padding:158px 0 0;}
.d-hero-ondes{position:absolute;will-change:transform;pointer-events:none;z-index:1;}
.d-hero-ondes.a{width:46%;right:-12%;top:-28%;opacity:.5;}
.d-hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 40px 260px;}
.d-back{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
  color:var(--on-dark-2);margin-bottom:24px;transition:color var(--dur) var(--ease);}
.d-back:hover{color:var(--bleu-glacier);}
.d-back svg{width:16px;height:16px;}
.d-meta{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap;}
.d-pill{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  padding:7px 14px;border-radius:var(--r-pill);background:rgba(205,181,163,.16);color:var(--or-rose);}
.d-date{font-size:13.5px;color:var(--on-dark-2);}
.d-title{font-family:var(--font-display);font-weight:500;font-size:var(--t-h1);
  line-height:1.12;letter-spacing:-.01em;color:var(--on-dark-1);text-wrap:pretty;max-width:26ch;}

.d-cover{position:relative;z-index:3;max-width:var(--maxw);margin:0 auto;padding:0 40px;
  margin-top:-170px;}
.d-cover-inner{width:100%;max-width:756px;}
.d-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-xl);
  border:8px solid var(--surface);box-shadow:0 40px 70px -24px rgba(27,42,74,.4),var(--sh-lg);display:block;}

/* ---- Layout: article + sidebar ------------------------------ */
.d-main{position:relative;max-width:var(--maxw);margin:0 auto;padding:96px 40px 130px;}
.d-grid{display:grid;grid-template-columns:1fr 300px;gap:64px;align-items:start;}

.d-article{max-width:66ch;}
.d-article h2{font-family:var(--font-display);font-weight:500;font-size:var(--t-h3);
  color:var(--bleu-nuit);line-height:1.28;margin:44px 0 16px;scroll-margin-top:120px;}
.d-article h2:first-child{margin-top:0;}
.d-article p{font-size:16px;line-height:1.75;color:var(--fg2);margin-bottom:20px;}
.d-article p:last-child{margin-bottom:0;}
.d-article ul{margin:20px 0 24px;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:12px;}
.d-article li{font-size:15.5px;line-height:1.65;color:var(--fg2);padding-left:26px;position:relative;}
.d-article li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--or-rose);}
.d-quote,.d-article blockquote{margin:32px 0;padding:26px 30px;background:var(--surface-warm);border-left:3px solid var(--or-rose);
  border-radius:var(--r-md);font-family:var(--font-display);font-weight:400;font-size:19px;
  line-height:1.5;color:var(--bleu-nuit);}
.d-quote p,.d-article blockquote p{margin:0;font-family:inherit;font-size:inherit;line-height:inherit;color:inherit;}
.d-quote cite,.d-article blockquote cite{display:block;margin-top:14px;font-family:var(--font-body);font-style:normal;
  font-size:13px;font-weight:600;color:var(--fg3);}

.d-cta{margin-top:52px;padding:34px 36px;background:var(--bleu-nuit);border-radius:var(--r-xl);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.d-cta-t{font-family:var(--font-display);font-weight:500;font-size:20px;color:var(--on-dark-1);}
.d-cta-d{font-size:14px;color:var(--on-dark-2);margin-top:4px;}

/* ---- Sidebar --------------------------------------------------- */
.d-side{position:sticky;top:120px;display:flex;flex-direction:column;gap:32px;}
.d-side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;}
.d-side-h{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--fg3);margin-bottom:16px;}
.d-toc{display:flex;flex-direction:column;gap:2px;}
.d-toc a{font-size:14px;line-height:1.5;color:var(--fg2);padding:9px 10px;border-radius:var(--r-sm);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);}
.d-toc a:hover{background:var(--surface-warm);color:var(--bleu-nuit);}
.d-toc a.active{background:var(--surface-warm);color:var(--bleu-profond);font-weight:600;}

.d-share{display:flex;gap:10px;}
.d-share a{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--surface-warm);border:1px solid var(--line);color:var(--fg2);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);}
.d-share a:hover{background:var(--bleu-nuit);color:var(--on-dark-1);border-color:var(--bleu-nuit);}
.d-share svg{width:17px;height:17px;}

.d-rel-list{display:flex;flex-direction:column;gap:16px;}
.d-rel{display:flex;gap:12px;align-items:flex-start;}
.d-rel-thumb{width:64px;height:64px;flex:none;border-radius:var(--r-sm);overflow:hidden;}
.d-rel-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.d-rel-body{min-width:0;}
.d-rel-date{font-size:11.5px;color:var(--fg3);margin-bottom:3px;}
.d-rel-t{font-size:13.5px;line-height:1.4;font-weight:600;color:var(--bleu-nuit);}
.d-rel:hover .d-rel-t{color:var(--bleu-profond);}

@media (max-width:960px){
  .d-grid{grid-template-columns:1fr;gap:44px;}
  .d-side{position:static;}
  .d-hero-inner{padding-bottom:150px;}
  .d-cover{margin-top:-90px;}
  .d-cover img{border-width:6px;}
  .d-title{font-size:var(--t-h2);}
}
@media (max-width:640px){
  .d-cover-inner{max-width:100%;}
}

/* ---- Galerie photo + lightbox ------------------------------ */
.d-gallery{margin:52px 0 0;}
.d-gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.d-gallery-item{border:none;padding:0;cursor:pointer;border-radius:var(--r-md);overflow:hidden;
  aspect-ratio:4/3;background:none;}
.d-gallery-item img{width:100%;height:100%;object-fit:cover;display:block;
  transition:transform var(--dur) var(--ease);}
.d-gallery-item:hover img{transform:scale(1.05);}

.d-lightbox{position:fixed;inset:0;z-index:100;background:rgba(15,20,32,.94);
  display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;
  transition:opacity var(--dur) var(--ease);}
.d-lightbox.open{opacity:1;pointer-events:auto;}
.d-lightbox-fig{position:relative;max-width:min(1100px,88vw);max-height:86vh;}
.d-lightbox-fig img{max-width:100%;max-height:86vh;display:block;border-radius:var(--r-md);
  box-shadow:var(--sh-lg);}
.d-lightbox-cap{margin-top:14px;text-align:center;font-size:13.5px;color:var(--on-dark-2);}
.d-lightbox-close,.d-lightbox-prev,.d-lightbox-next{position:absolute;display:flex;align-items:center;
  justify-content:center;width:44px;height:44px;border-radius:50%;background:rgba(247,245,242,.1);
  color:var(--on-dark-1);border:1px solid rgba(247,245,242,.25);cursor:pointer;
  transition:background var(--dur) var(--ease);}
.d-lightbox-close:hover,.d-lightbox-prev:hover,.d-lightbox-next:hover{background:rgba(247,245,242,.22);}
.d-lightbox-close{top:-56px;right:0;}
.d-lightbox-prev{top:50%;left:-58px;transform:translateY(-50%);}
.d-lightbox-next{top:50%;right:-58px;transform:translateY(-50%);}
.d-lightbox-close svg,.d-lightbox-prev svg,.d-lightbox-next svg{width:20px;height:20px;}
@media (max-width:720px){
  .d-gallery-grid{grid-template-columns:repeat(2,1fr);}
  .d-lightbox-prev{left:8px;}
  .d-lightbox-next{right:8px;}
  .d-lightbox-close{top:8px;right:8px;}
}