/* =========================================================
   BLACKLEMON — approfondimenti.css
   Sidebar "Altri approfondimenti" + CTA per le pagine blog/
   approfondimento a post singolo (article.section-light/dark).
   Caricato DOPO style.css: usa gli stessi design token (--ink,
   --lemon, --paper, --line, --font-head, --ease, --header-h, ecc.)
   definiti in :root di style.css, senza ridichiararli né toccare
   quel file.
   ========================================================= */

/* ---------- LAYOUT: contenuto + sidebar ---------- */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}
.article-main {
  max-width: 760px;
}
.article-main ul {
  list-style: none;
  padding-left: 0;
}
.article-main ul li {
  position: relative;
  padding-left: 20px; /* spazio per l'icona */
  margin-bottom: 6px;
  font-size: 1.08rem;
}
.article-main ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border-top: 2px solid #f6c500;
  border-right: 2px solid #f6c500;
  transform: rotate(45deg);
}
.article-main .prose h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
}
.article-main .prose h2 em {
  color: #f6c500;
}
.article-main .prose h3 {
  font-size: 1.5rem;
}
/* ---------- SIDEBAR ---------- */
/* L'<aside> contiene due card .article-sidebar-inner separate (lista
   link + CTA): il gap le stacca invece di lasciarle attaccate. */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.article-sidebar-inner {
  background: var(--paper);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 1.8rem;
}
.section-dark .article-sidebar-inner {
  background: var(--ink-card);
  border-color: var(--line);
}
/* Variante: la card che contiene il CTA (non quella con la lista link)
   ha sfondo giallo pieno; il testo resta scuro (gi&agrave; var(--ink) via
   .section-light) e il bottone .btn-dark ci si legge sopra nero. */
.article-sidebar-inner:has(.article-sidebar-cta) {
  background: var(--lemon);
  border-color: transparent;
}
.article-sidebar-inner:has(.article-sidebar-cta) .article-sidebar-cta {
  padding-top: 0;
  border-top: 0;
}
.article-sidebar-inner h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lemon-deep);
  padding-bottom: 1rem;
  margin-bottom: 1.3rem;
  border-bottom: 1px solid var(--line-dark);
}
.section-dark .article-sidebar-inner h3 {
  color: var(--lemon);
  border-bottom-color: var(--line);
}

.article-sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 0;
  margin: 0 0 1.8rem;
}
.article-sidebar-list li {
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line-dark);
}
.section-dark .article-sidebar-list li {
  border-bottom-color: var(--line);
}
.article-sidebar-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.article-sidebar-eyebrow {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ash-dark);
  margin-bottom: 0.4rem;
}
.article-sidebar-list a {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.35;
  color: inherit;
  transition: color 0.25s var(--ease);
}
.article-sidebar-list a:hover,
.article-sidebar-list a:focus-visible {
  color: var(--lemon-deep);
}
.section-dark .article-sidebar-list a:hover,
.section-dark .article-sidebar-list a:focus-visible {
  color: var(--lemon);
}

/* ---------- CTA nella sidebar (sempre visibile sotto la lista) ---------- */
.article-sidebar-cta {
  padding-top: 1.6rem;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.section-dark .article-sidebar-cta {
  border-top-color: var(--line);
}
.article-sidebar-cta p {
  font-weight: 900;
  font-size: 1.2rem;
  line-height: 1.15;
}
.article-sidebar-cta .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- RESPONSIVE ---------- */
@media (min-width: 992px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 4rem;
  }
  /* La sidebar resta agganciata durante lo scroll del testo, appena
     sotto l'header fisso (--header-h, definito in style.css). */
  .article-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }
}