/* ==========================================================================
   WgetCloud Article & Knowledge Base Stylesheet (css/article.css)
   Clean, Readable, High-SEO Markdown/HTML Structure
   ========================================================================== */

.article-page-wrap {
  padding: 60px 0 90px;
  position: relative;
  z-index: 1;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-nav a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: var(--text-dim);
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 500;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: flex-start;
}

.article-main {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  backdrop-filter: blur(14px);
}

.article-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 28px;
  margin-bottom: 34px;
}

.article-category-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.article-headline {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.32;
  color: #ffffff;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.article-info-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.84rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.article-info-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-content {
  font-size: 1.02rem;
  line-height: 1.85;
  color: #cbd5e1;
}

.article-content p {
  margin-bottom: 22px;
}

.article-content h2 {
  font-size: 1.55rem;
  font-weight: 700;
  color: #ffffff;
  margin: 38px 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.35;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 28px 0 14px;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content strong {
  color: #ffffff;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

.article-content a:hover {
  color: #ffffff;
}

/* Callout Box */
.callout-box {
  background: rgba(10, 20, 45, 0.8);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 22px;
  margin: 28px 0;
  border-top: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.callout-box.tip {
  border-left-color: var(--success);
}

.callout-box.warning {
  border-left-color: var(--warning);
}

.callout-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout-box p {
  font-size: 0.93rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.65;
}

/* Article CTA Box */
.article-cta-box {
  background: linear-gradient(135deg, rgba(14, 28, 64, 0.9) 0%, rgba(20, 36, 85, 0.9) 100%);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  margin: 40px 0;
  box-shadow: var(--shadow-glow);
}

.article-cta-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-cta-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 22px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

/* Article Table */
.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.article-table th {
  background: rgba(15, 23, 42, 0.9);
  padding: 14px 18px;
  font-weight: 700;
  color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.article-table td {
  padding: 13px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

.article-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Sidebar */
.article-sidebar {
  position: sticky;
  top: 92px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
}

.sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-list {
  list-style: none;
}

.toc-list li {
  margin-bottom: 10px;
}

.toc-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: var(--transition);
  display: block;
  line-height: 1.45;
}

.toc-link:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.sidebar-promo-card {
  text-align: center;
  background: linear-gradient(180deg, rgba(20, 36, 85, 0.8) 0%, rgba(10, 18, 42, 0.9) 100%);
  border: 1px solid rgba(0, 242, 254, 0.35);
  border-radius: var(--radius-lg);
  padding: 26px 20px;
}

.sidebar-promo-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 8px;
}

.sidebar-promo-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.55;
}

/* Related Articles */
.related-articles {
  margin-top: 45px;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
}

.related-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.related-card {
  background: rgba(10, 16, 38, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-decoration: none;
  transition: var(--transition);
  display: block;
}

.related-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.related-card-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 6px;
}

.related-card-desc {
  font-size: 0.78rem;
  color: var(--text-dim);
}

@media (max-width: 992px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 600px) {
  .article-main {
    padding: 26px 18px;
  }
  .article-headline {
    font-size: 1.6rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
}