/* ==========================================================================
   Article & Reading Experience Stylesheet
   Enhanced Typography, Sticky TOC, Audio Player, Progress Bar, Print View
   ========================================================================== */

/* Reading Progress Bar at Top */
.reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-saffron), var(--color-green));
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* Breadcrumbs (SEO schema visual) */
.breadcrumb-nav {
  padding: 1.25rem 0 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  gap: 0.5rem;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb-item a {
  color: var(--text-muted);
}
.breadcrumb-item a:hover {
  color: var(--color-saffron);
}

.breadcrumb-item.active {
  color: var(--text-main);
  font-weight: 600;
}

.breadcrumb-separator {
  color: var(--text-light);
  font-size: 0.75rem;
}

/* Article Layout Grid */
.article-page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 2.5rem;
  padding: 1.5rem 0 4rem;
  align-items: start;
}

/* Main Article Content Container */
.article-main-container {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

/* Article Header */
.article-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.article-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.article-category-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
}
.article-lang-switch:hover {
  background: var(--primary-light);
}

.article-headline {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--primary);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.article-submeta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.submeta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Audio Player (Text-to-Speech Assist) */
.tts-reader-box {
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.25rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.tts-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #0369a1;
  font-size: 0.875rem;
  font-weight: 600;
}

.tts-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-tts {
  background: #0284c7;
  color: #fff;
  border: none;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.btn-tts:hover {
  background: #0369a1;
}

.btn-tts.playing {
  background: #dc2626;
}

/* Featured Media / Image */
.article-featured-media {
  margin-bottom: 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.article-featured-media img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
}

.media-caption {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 0.5rem 0;
  font-style: italic;
}

/* Article Prose Typography */
.article-prose {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: #24292f;
}

.article-prose p {
  margin-bottom: 1.5rem;
}

.article-prose h2 {
  font-size: 1.625rem;
  font-weight: 800;
  color: var(--primary);
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--border-color);
  scroll-margin-top: 100px;
}

.article-prose h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e293b;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  scroll-margin-top: 100px;
}

.article-prose ul, .article-prose ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-prose li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.article-prose blockquote {
  background: #f8fafc;
  border-left: 4px solid var(--color-saffron);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: #334155;
}

.article-prose .step-box {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  position: relative;
}

.article-prose .step-number {
  position: absolute;
  top: -12px;
  left: 16px;
  background: var(--color-saffron);
  color: #fff;
  font-weight: 800;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 20px;
  text-transform: uppercase;
}

.article-prose .info-alert {
  background: #fefce8;
  border: 1px solid #fef08a;
  color: #854d0e;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

/* Article Share & Tools Footer */
.article-action-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.share-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.share-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.btn-share-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.875rem;
  transition: transform 0.2s ease;
}
.btn-share-icon:hover {
  transform: translateY(-2px);
}

.share-wa { background: #25D366; }
.share-x { background: #000000; }
.share-fb { background: #1877F2; }
.share-tg { background: #229ED9; }
.share-copy { background: #475569; }

.btn-print-page {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--bg-subtle);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.btn-print-page:hover {
  background: #e2e8f0;
}

/* Sticky Sidebar (Table of Contents & Quick Links) */
.article-sidebar {
  position: sticky;
  top: 95px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.toc-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-link {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.4;
  display: block;
  padding-left: 0.5rem;
  border-left: 2px solid transparent;
  transition: all 0.2s;
}

.toc-link:hover, .toc-link.active {
  color: var(--color-saffron);
  border-left-color: var(--color-saffron);
  font-weight: 600;
}

.toc-link.toc-h3 {
  margin-left: 0.75rem;
  font-size: 0.75rem;
}

/* Related Articles List in Sidebar */
.related-posts-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.related-post-item a {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.related-post-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.35;
}
.related-post-title:hover {
  color: var(--color-saffron);
}

.related-post-date {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* Author Box */
.author-box {
  background: var(--bg-body);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.author-info h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--primary);
}

.author-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Print Stylesheet (@media print)
   ========================================================================== */
@media print {
  .top-accessibility-bar,
  .site-header,
  .announcement-ticker,
  .reading-progress-bar,
  .article-sidebar,
  .tts-reader-box,
  .article-action-footer,
  .site-footer,
  .search-modal-backdrop {
    display: none !important;
  }

  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 12pt;
  }

  .article-page-layout {
    display: block;
    padding: 0;
  }

  .article-main-container {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }

  .article-headline {
    font-size: 20pt;
    color: #000 !important;
  }

  a {
    color: #000 !important;
    text-decoration: underline;
  }
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .article-page-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
  .article-main-container {
    padding: 1.5rem;
  }
  .article-headline {
    font-size: 1.65rem;
  }
}