/* ============================================================
   InfoNest — Article Page Styles
   ============================================================ */

/* ── Article Layout ── */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-10);
  align-items: start;
}
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
}

/* ── Article Header ── */
.article-header {
  margin-bottom: var(--space-8);
}
.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid;
  text-decoration: none;
  margin-bottom: var(--space-4);
  transition: all var(--transition-fast);
}
.article-category-badge:hover { transform: translateY(-1px); }

.article-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-5);
  letter-spacing: -0.02em;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  padding: var(--space-4) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-6);
}
.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.article-meta-item svg { flex-shrink: 0; }
.article-meta-item a { color: var(--accent-primary); text-decoration: none; font-weight: 500; }
.article-meta-item a:hover { color: var(--color-teal-dark); }

/* ── Hero Image ── */
.article-hero-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
}
.article-hero-placeholder {
  width: 100%;
  height: 340px;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  color: rgba(255,255,255,0.85);
}

/* ── Article Body ── */
.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}
.article-body h2 {
  font-size: 1.6rem;
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--border-color);
  color: var(--text-primary);
}
.article-body h3 {
  font-size: 1.25rem;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}
.article-body h4 {
  font-size: 1.05rem;
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  font-weight: 600;
}
.article-body p {
  margin-bottom: var(--space-5);
}
.article-body ul,
.article-body ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}
.article-body li {
  margin-bottom: var(--space-2);
}
.article-body ul li { list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body strong { font-weight: 600; }
.article-body em { font-style: italic; }
.article-body a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(20,184,166,.4);
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}
.article-body a:hover {
  color: var(--color-teal-dark);
  text-decoration-color: var(--color-teal-dark);
}
.article-body blockquote {
  border-left: 4px solid var(--color-teal);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background: rgba(20,184,166,.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: italic;
  font-size: 1.05rem;
}
.article-body blockquote p { margin-bottom: 0; }

/* ── Highlight Box inside article ── */
.article-body .highlight-box {
  background: var(--bg-surface-2);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  border: 1px solid var(--border-color);
}
.article-body .highlight-box h4 {
  margin-top: 0;
  color: var(--accent-primary);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Lead paragraph ── */
.article-body .lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.75;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

/* ── Article Footer ── */
.article-footer {
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 2px solid var(--border-color);
}
.article-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}
.article-tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}
.article-tag:hover {
  background: rgba(20,184,166,.1);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* ── Sidebar ── */
.article-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
@media (max-width: 1024px) {
  .article-sidebar { position: static; }
}

.sidebar-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.sidebar-widget-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-color);
}

.sidebar-recent-list { display: flex; flex-direction: column; gap: var(--space-4); }
.sidebar-recent-item { display: flex; gap: var(--space-3); align-items: flex-start; }
.sidebar-recent-img {
  width: 60px; height: 50px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
}
.sidebar-recent-img-placeholder {
  width: 60px; height: 50px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: rgba(255,255,255,.8);
  font-weight: 700;
  font-family: var(--font-display);
}
.sidebar-recent-title {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-primary);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}
.sidebar-recent-title:hover { color: var(--accent-primary); }
.sidebar-recent-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* ── Category Mini Cards ── */
.sidebar-categories { display: flex; flex-direction: column; gap: var(--space-2); }
.sidebar-cat-link {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.sidebar-cat-link svg {
  margin-right: var(--space-3);
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.sidebar-cat-link:hover {
  color: var(--accent-primary);
  background: rgba(20,184,166,.06);
}
.sidebar-cat-link:hover svg {
  color: var(--accent-primary);
}
.sidebar-cat-name {
  flex-grow: 1;
}
.sidebar-cat-count {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  color: var(--text-muted);
  margin-left: auto;
}


/* ── Related Articles Section ── */
.related-section {
  margin-top: var(--space-10);
  padding-top: var(--space-10);
  border-top: 1px solid var(--border-color);
}
.related-section h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-6);
}

/* ── Number List ── */
.numbered-list {
  counter-reset: item;
  list-style: none;
  padding: 0;
}
.numbered-list li {
  counter-increment: item;
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  list-style: none;
}
.numbered-list li::before {
  content: counter(item, decimal-leading-zero);
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--accent-primary);
  flex-shrink: 0;
  min-width: 2.5rem;
}

/* ── Key Takeaways ── */
.key-takeaways {
  background: linear-gradient(135deg, rgba(20,184,166,.08), rgba(20,184,166,.03));
  border: 1px solid rgba(20,184,166,.2);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-8) 0;
}
.key-takeaways h4 {
  color: var(--color-teal-dark);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.key-takeaways ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.key-takeaways li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.9rem;
  margin-bottom: var(--space-3);
  color: var(--text-secondary);
}
.key-takeaways li::before {
  content: '✓';
  color: var(--color-teal);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── Reading Progress ── */
.reading-progress-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Real AI Image Backgrounds ── */
.article-hero-placeholder {
  font-size: 0 !important;
  color: transparent !important;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
}