/* ===================================
   Articolo Singolo
   =================================== */

/* === HERO === */
.single-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--border);
}

.single-hero-inner {
  max-width: 760px;
}

/* === COVER IMAGE === */
.single-cover {
  margin: 32px 0 0;
  max-width: 860px;
}

.single-cover-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center top;
  border-radius: 16px;
  display: block;
  border: 1px solid var(--border);
}

.single-cat-badge {
  display: inline-block;
  padding: 5px 12px;
  background: var(--cyan-dim);
  border: 1px solid rgba(0,245,212,0.25);
  color: var(--cyan);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  border-radius: 6px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  transition: background 0.2s;
}
.single-cat-badge:hover { background: rgba(0,245,212,0.18); }

.single-title {
  font-family: var(--font-head);
  font-size: clamp(26px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.single-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.meta-sep { color: var(--text-dim); }

/* === LAYOUT ARTICOLO === */
.single-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  padding: 40px 0 80px;
  align-items: start;
  max-width: 1060px;
}

/* === CONTENUTO === */
.single-content {}

.post-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}

.post-content h2 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 48px 0 16px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
  line-height: 1.3;
}
.post-content h2:first-child { border-top: none; margin-top: 0; padding-top: 0; }

.post-content h3 {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 12px;
  line-height: 1.3;
}

.post-content p { margin-bottom: 20px; }

.post-content a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.post-content a:hover { opacity: 0.8; }

.post-content strong { color: var(--text); font-weight: 600; }

.post-content ul,
.post-content ol {
  margin: 0 0 20px 20px;
  list-style: disc;
}
.post-content ol { list-style: decimal; }
.post-content li { margin-bottom: 8px; color: var(--text); }

.post-content blockquote {
  border-left: 3px solid var(--cyan);
  padding: 16px 20px;
  margin: 28px 0;
  background: var(--bg2);
  border-radius: 0 8px 8px 0;
  color: var(--text-muted);
  font-style: italic;
}

.post-content pre,
.post-content code {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px 6px;
}
.post-content pre {
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
}
.post-content pre code { background: none; border: none; padding: 0; }

.post-content img {
  border-radius: var(--radius);
  margin: 24px 0;
  max-width: 100%;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.post-content th,
.post-content td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: left;
}
.post-content th {
  background: var(--bg3);
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--text);
}

/* === TAG === */
.single-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.tag-pill {
  display: inline-block;
  padding: 5px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-head);
  font-weight: 500;
  border-radius: 6px;
  transition: all 0.2s;
}
.tag-pill:hover { color: var(--cyan); border-color: rgba(0,245,212,0.3); background: var(--cyan-dim); }

/* === SIDEBAR === */
.single-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.sidebar-box-title {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* Autore */
.sidebar-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar { width: 48px; height: 48px; border-radius: 50%; }
.author-name { font-family: var(--font-head); font-size: 14px; font-weight: 600; color: var(--text); }
.author-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* TOC */
#toc-list { display: flex; flex-direction: column; gap: 4px; }
#toc-list a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 6px;
  transition: all 0.2s;
  border-left: 2px solid transparent;
}
#toc-list a:hover,
#toc-list a.toc-active {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--cyan-dim);
}
#toc-list .toc-h3 { padding-left: 22px; }

/* CTA sidebar */
.sidebar-cta {
  text-align: center;
  background: var(--bg3);
  border-color: rgba(0,245,212,0.15);
}
.sidebar-cta-icon {
  width: 48px;
  height: 48px;
  background: var(--cyan-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  color: var(--cyan);
}
.sidebar-cta-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

/* === ARTICOLI CORRELATI === */
.blog-card-thumb {
  position: relative;
  overflow: hidden;
}

.related-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 64px 0;
  margin-top: 40px;
}

.blog-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .single-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 60px;
  }
  .single-sidebar { position: static; }
  #toc-box { display: none; }
  .blog-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .single-hero { min-height: 300px; }
  .single-hero-inner { padding: 40px 0 36px; }
  .post-content { font-size: 16px; }
  .blog-grid-3 { grid-template-columns: 1fr; }
  .related-section { padding: 44px 0; }
}