/* ═══════════════════════════════════════════
   DataDeep Magazine - Stili pagina articolo
   Estende il Design System del master (datadeep.it)
   ═══════════════════════════════════════════ */

.article-main { padding-top: 104px; }

/* ═══════════════ HERO ARTICOLO ═══════════════ */
.article-hero {
  position: relative;
  background: var(--dd-gradient-hero);
  overflow: hidden;
  padding: var(--space-12) 0 var(--space-10);
}
.article-hero .dot-grid { opacity: 0.5; }
.article-hero-iceberg {
  position: absolute;
  right: -30px; top: 50%;
  transform: translateY(-50%);
  width: 260px; max-width: 32%;
  opacity: 0.16;
  pointer-events: none; user-select: none;
}
.article-hero-inner { position: relative; z-index: 2; max-width: none; }
.article-breadcrumb { font-size: var(--font-size-xs); color: rgba(255,255,255,0.5); margin-bottom: var(--space-5); }
.article-breadcrumb a { color: rgba(255,255,255,0.7); }
.article-breadcrumb a:hover { color: var(--dd-purple-light); }
.article-hero h1 {
  color: var(--dd-white);
  font-size: var(--font-size-hero);
  margin: var(--space-4) 0 var(--space-6);
  letter-spacing: var(--letter-spacing-tight);
}
.article-meta {
  display: flex; align-items: center; gap: 14px;
  font-size: var(--font-size-sm); color: rgba(255,255,255,0.65);
  flex-wrap: wrap;
}
.article-meta img { width: 48px; height: 48px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.15); }
.article-meta strong { color: var(--dd-white); font-weight: 600; }
.article-meta .sep { opacity: 0.4; }

/* Copertina - sotto la banda dell'hero, senza sovrapporsi */
.article-cover {
  max-width: var(--max-width);
  margin: var(--space-8) auto var(--space-10);
  padding: 0 40px;
  position: relative; z-index: 3;
}
.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* ═══════════════ SEZIONE RIASSUNTO (standfirst) ═══════════════ */
.article-summary {
  max-width: 920px;
  margin: 0 auto var(--space-8);
  padding: var(--space-6) var(--space-8);
  background: var(--dd-off-white);
  border-left: 4px solid var(--dd-purple);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.article-summary-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dd-purple);
  margin-bottom: var(--space-3);
}
.article-summary p {
  margin: 0;
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  font-weight: 500;
  font-style: italic;
  color: var(--dd-navy);
}
@media (max-width: 768px) {
  .article-summary { padding: var(--space-5); }
  .article-summary p { font-size: var(--font-size-md); }
}

/* ═══════════════ INDICE "IN QUESTO ARTICOLO" ═══════════════ */
.article-toc {
  max-width: 920px;
  margin: 0 auto var(--space-8);
  background: var(--dd-white);
  border: 1px solid rgba(10,10,40,0.08);
  border-radius: var(--radius);
  padding: var(--space-5) var(--space-6);
}
.article-toc-title {
  display: flex; align-items: center; gap: 9px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dd-purple);
  margin-bottom: var(--space-4);
}
.article-toc-title svg { width: 16px; height: 16px; }
.article-toc-list { list-style: none; counter-reset: toc; margin: 0; padding: 0; }
.article-toc-list li { margin: 0; }
.article-toc-list a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--dd-body);
  text-decoration: none;
  font-size: var(--font-size-sm);
  line-height: 1.45;
  border-left: 2px solid transparent;
  transition: all var(--duration-fast) var(--ease-smooth);
}
.article-toc-list a:hover {
  background: var(--dd-off-white);
  color: var(--dd-purple);
  border-left-color: var(--dd-purple);
}
.article-toc-list .toc-top a { font-weight: 600; }
.article-toc-list .toc-top a::before {
  counter-increment: toc;
  content: counter(toc, decimal-leading-zero);
  color: var(--dd-purple);
  font-weight: 700;
  font-size: var(--font-size-xs);
  margin-right: 10px;
}
.article-toc-list .toc-sub a {
  padding-left: var(--space-8);
  color: var(--dd-muted);
  font-weight: 500;
}
.article-toc-list .toc-sub a::before {
  content: "-";
  color: var(--dd-light-gray);
  margin-right: 8px;
}

/* offset per l'header fisso quando si salta a una sezione */
.article-body h2, .article-body h3 { scroll-margin-top: 96px; }

@media (max-width: 768px) {
  .article-toc { padding: var(--space-5); }
}

/* ═══════════════ CORPO ARTICOLO ═══════════════ */
/* Blocco testo: colonna centrata sotto la copertina a tutta larghezza */
.article-body {
  max-width: 920px;
  margin: 0 auto;
  padding: var(--space-8) 40px var(--space-12);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
  color: var(--dd-body);
  overflow-wrap: break-word;
}
.article-body table { display: block; overflow-x: auto; }
.article-body > *:first-child { margin-top: 0; }
.article-body p { margin-bottom: var(--space-5); }
.article-body h2 {
  font-size: var(--font-size-2xl);
  color: var(--dd-navy);
  margin: var(--space-8) 0 var(--space-4);
  line-height: var(--line-height-tight);
}
.article-body h3 {
  font-size: var(--font-size-xl);
  color: var(--dd-navy);
  margin: var(--space-6) 0 var(--space-3);
}
.article-body h4 { font-size: var(--font-size-lg); color: var(--dd-navy); margin: var(--space-5) 0 var(--space-2); }
.article-body a { color: var(--dd-purple); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--dd-blue); }
.article-body strong { color: var(--dd-navy); font-weight: 700; }
.article-body ul, .article-body ol { margin: 0 0 var(--space-5) var(--space-5); }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: var(--space-2); padding-left: var(--space-2); }
.article-body img {
  width: 100%; height: auto;
  border-radius: var(--radius);
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-md);
}
.article-body figure { margin: var(--space-6) 0; }
.article-body figcaption { font-size: var(--font-size-sm); color: var(--dd-muted); text-align: center; margin-top: var(--space-2); }
.article-body blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--dd-purple);
  background: var(--dd-off-white);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--font-size-lg);
  color: var(--dd-navy);
  font-style: italic;
}
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body code {
  background: var(--dd-off-white);
  border: 1px solid rgba(187,49,199,0.15);
  border-radius: 6px;
  padding: 2px 7px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  color: var(--dd-purple-dark);
}
.article-body pre {
  background: var(--dd-navy);
  color: #e8e0f0;
  padding: var(--space-5);
  border-radius: var(--radius);
  overflow-x: auto;
  margin: var(--space-6) 0;
  font-size: var(--font-size-sm);
  line-height: 1.6;
}
.article-body pre code { background: none; border: none; padding: 0; color: inherit; }
.article-body hr { border: none; height: 1px; background: rgba(10,10,40,0.1); margin: var(--space-8) 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: var(--space-6) 0; font-size: var(--font-size-sm); }
.article-body th, .article-body td { border: 1px solid rgba(10,10,40,0.1); padding: 10px 14px; text-align: left; }
.article-body th { background: var(--dd-off-white); color: var(--dd-navy); font-weight: 700; }

/* Excerpt di apertura (lead) */
.article-lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--dd-muted);
  border-bottom: 1px solid rgba(10,10,40,0.08);
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
}

/* Avviso contenuto non disponibile */
.article-fallback {
  background: var(--dd-off-white);
  border: 1px dashed rgba(187,49,199,0.3);
  border-radius: var(--radius);
  padding: var(--space-6);
  text-align: center;
  color: var(--dd-muted);
}
.article-fallback a { color: var(--dd-purple); font-weight: 600; }

/* Condivisione */
.article-share {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 40px var(--space-10);
  display: flex; align-items: center; gap: 12px;
  font-size: var(--font-size-sm); color: var(--dd-muted);
  flex-wrap: wrap;
}
.article-share a {
  width: 38px; height: 38px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--dd-off-white); color: var(--dd-purple);
  transition: all var(--duration-fast) var(--ease-smooth);
}
.article-share a:hover { background: var(--dd-purple); color: var(--dd-white); }
.article-share svg { width: 18px; height: 18px; }

/* ═══════════════ CTA FINALE (scuro) ═══════════════ */
.article-cta {
  position: relative; overflow: hidden;
  background: var(--dd-gradient-cta);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  margin: var(--space-8) 0;
}
.article-cta h2 { color: var(--dd-white); font-size: var(--font-size-3xl); margin-bottom: var(--space-3); }
.article-cta p { color: rgba(255,255,255,0.85); max-width: 520px; margin: 0 auto var(--space-6); }
.article-cta .btn { background: var(--dd-white); color: var(--dd-purple-dark); }
.article-cta .btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.2); }

/* ═══════════════ NEWSLETTER (riusa stile magazine) ═══════════════ */

/* ═══════════════ ARTICOLI CORRELATI ═══════════════ */
.related { padding: var(--space-12) 0 var(--space-16); }
.related h2 { font-size: var(--font-size-2xl); margin-bottom: var(--space-8); text-align: center; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); align-items: stretch; }

/* Card correlati: stili (magazine.css non è caricato nelle pagine articolo) */
.related-grid .mag-card {
  display: flex; flex-direction: column;
  background: var(--dd-white);
  border: 1px solid rgba(10,10,40,0.06);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  height: 100%;
  transition: all var(--duration-normal) var(--ease-smooth);
}
.related-grid .mag-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(187,49,199,0.18); }
.related-grid .mag-card-media { position: relative; aspect-ratio: 16 / 9; background: var(--dd-gradient-hero); overflow: hidden; flex: 0 0 auto; }
.related-grid .mag-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--duration-slow) var(--ease-smooth); }
.related-grid .mag-card:hover .mag-card-media img { transform: scale(1.05); }
.related-grid .mag-card-media::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--dd-purple); }
.related-grid .mag-card-media.is-empty { display: flex; align-items: center; justify-content: center; }
.related-grid .mag-card-media.is-empty img { width: 46%; height: auto; object-fit: contain; opacity: 0.55; }
.related-grid .mag-card-body { padding: var(--space-5); display: flex; flex-direction: column; flex: 1; gap: 12px; }
.related-grid .mag-card-body h3 {
  font-size: var(--font-size-lg); line-height: 1.3; color: var(--dd-navy);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.related-grid .mag-card:hover .mag-card-body h3 { color: var(--dd-purple); }
.related-grid .mag-card-excerpt {
  font-size: var(--font-size-sm); color: var(--dd-muted); line-height: var(--line-height-normal); flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.related-grid .mag-card-meta {
  display: flex; align-items: center; gap: 10px;
  font-size: var(--font-size-xs); color: var(--dd-muted);
  padding-top: 12px; border-top: 1px solid rgba(10,10,40,0.06);
}
.related-grid .mag-card[data-cat="AI Generativa e LLM"] .mag-card-media::after  { background: #bb31c7; }
.related-grid .mag-card[data-cat="Machine Learning"] .mag-card-media::after     { background: #7b2fd9; }
.related-grid .mag-card[data-cat="Dati e Governance"] .mag-card-media::after    { background: #7c4ddb; }
.related-grid .mag-card[data-cat="AI Industriale"] .mag-card-media::after       { background: #c81fd6; }
.related-grid .mag-card[data-cat="Strategia e Business"] .mag-card-media::after { background: #c026d3; }
.related-grid .mag-card[data-cat="Etica e Privacy"] .mag-card-media::after      { background: #b23fbf; }
.related-grid .mag-card[data-cat="AI e Lavoro"] .mag-card-media::after          { background: #7c5cf0; }
.related-grid .mag-card[data-cat="Casi di studio"] .mag-card-media::after       { background: #a21caf; }

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .article-main { padding-top: 88px; }
  .article-hero { padding: var(--space-10) 0 var(--space-8); }
  .article-hero h1 { font-size: var(--font-size-2xl); }
  .article-hero-iceberg { display: none; }
  .article-body { font-size: var(--font-size-base); paddin