/* article-template.css */

/* Typography & Core Variables */
:root {
  --article-content-width: 800px;
  --sidebar-width: 270px;
}

/* Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 9999;
  pointer-events: none;
}

.reading-progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--primary);
  transition: width 0.1s ease-out;
}

/* Breadcrumbs */
.article-breadcrumbs {
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: var(--gray);
}

.article-breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.article-breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-breadcrumbs li a {
  color: var(--primary);
  text-decoration: none;
}

.article-breadcrumbs li a:hover {
  text-decoration: underline;
}

.article-breadcrumbs li:not(:last-child)::after {
  content: "→";
  color: var(--border);
}

.article-breadcrumbs li.current {
  color: var(--gray);
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Article Header */
.article-header-section {
  padding: 60px 20px 40px;
  background: #f8faff;
}

.article-category-badge {
  display: inline-block;
  background: rgba(13, 110, 253, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.article-main-title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  color: var(--secondary);
  line-height: 1.2;
  margin-bottom: 25px;
}

.article-meta-info {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--gray);
}

.article-meta-info span {
  display: inline-flex;
  align-items: center;
}

/* Featured Image */
.article-featured-image-section {
  padding: 0 20px 40px;
  background: #f8faff;
}

.article-featured-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  display: block;
}

/* Body Layout */
.article-body-section {
  padding: 40px 20px;
}

.article-two-column {
  display: flex;
  gap: 50px;
  max-width: calc(var(--article-content-width) + var(--sidebar-width) + 50px);
  margin: 0 auto;
}

.article-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}

.article-main-content {
  flex: 1;
  max-width: var(--article-content-width);
}

.sticky-sidebar-content {
  position: sticky;
  top: 100px;
}

/* Table of Contents */
.toc-container {
  margin-bottom: 40px;
  background: #fff;
  padding: 25px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.toc-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 15px;
}

.toc-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toc-nav a {
  color: var(--gray);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.4;
  transition: color 0.3s;
  padding-left: 10px;
  border-left: 2px solid transparent;
}

.toc-nav a:hover,
.toc-nav a.active {
  color: var(--primary);
  border-left-color: var(--primary);
}

/* Share Buttons */
.share-container {
  padding: 0 25px;
}

.share-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 15px;
}

.share-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.share-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 1rem;
}

.share-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.copy-link-btn {
  width: auto;
  border-radius: 20px;
  padding: 0 15px;
  gap: 8px;
}

/* Content Styling */
.article-intro {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--secondary);
  font-weight: 500;
  margin-bottom: 40px;
}

.article-body h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: var(--secondary);
  margin: 50px 0 20px;
  scroll-margin-top: 100px;
}

.article-body h3 {
  font-size: clamp(22px, 2.5vw, 26px);
  font-weight: 700;
  color: var(--secondary);
  margin: 30px 0 15px;
}

.article-body p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #4a5568;
  margin-bottom: 24px;
}

.article-body ul,
.article-body ol {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #4a5568;
  margin-bottom: 24px;
  padding-left: 20px;
}

.article-body li {
  margin-bottom: 10px;
}

/* Key Takeaways */
.key-takeaways-box {
  background: rgba(13, 110, 253, 0.04);
  border-left: 4px solid var(--primary);
  padding: 30px;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin: 50px 0;
}

.key-takeaways-box h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.key-takeaways-box h4 i {
  color: #fbbf24;
}

.key-takeaways-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.key-takeaways-box li {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--secondary);
  margin-bottom: 15px;
  display: flex;
  gap: 12px;
}

.key-takeaways-box li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--primary);
  margin-top: 3px;
}

/* FAQs */
.article-faqs {
  margin: 60px 0;
}

.faq-heading {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 30px;
}


/* Author Box */
.author-box {
  display: flex;
  gap: 20px;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin: 60px 0;
}

.author-avatar img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  background: #f8faff;
  padding: 10px;
}

.author-info h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.author-info p {
  font-size: 0.95rem;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 12px;
}

.author-link {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.author-link:hover {
  text-decoration: underline;
}

/* Nav prev/next */
.article-navigation {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 30px;
  margin-top: 40px;
  gap: 20px;
}

.nav-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--secondary);
  transition: transform 0.2s;
}

.nav-card.prev {
  align-items: flex-start;
  text-align: left;
}

.nav-card.next {
  align-items: flex-end;
  text-align: right;
}

.nav-card:hover {
  transform: translateY(-2px);
}

.nav-label {
  font-size: 0.85rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-card.prev .nav-label::before {
  content: "\f060";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
}

.nav-card.next .nav-label::after {
  content: "\f061";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
}

.nav-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
}

/* Media Queries */
@media (prefers-reduced-motion: reduce) {

  .faq-answer,
  .reading-progress-bar,
  .toc-nav a {
    transition: none;
  }
}

@media (max-width: 1024px) {
  .article-two-column {
    flex-direction: column;
    gap: 30px;
  }

  .article-sidebar {
    width: 100%;
    order: -1;
  }

  .sticky-sidebar-content {
    position: static;
  }

  .toc-container {
    padding: 15px 20px;
    margin-bottom: 20px;
  }

  .toc-nav {
    display: none;
  }

  .toc-container.active .toc-nav {
    display: flex;
    margin-top: 15px;
  }

  .toc-title {
    margin-bottom: 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .toc-title::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 0.9rem;
  }

  .toc-container.active .toc-title::after {
    content: "\f077";
  }

  #relatedArticlesGrid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 768px) {
  .article-header-section {
    padding: 40px 15px 20px;
  }

  .article-featured-image-section {
    padding: 0 15px 30px;
  }

  .article-body-section {
    padding: 20px 15px;
  }

  .article-body p,
  .article-body ul,
  .article-intro {
    font-size: 1rem;
  }

  .author-box {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .article-navigation {
    flex-direction: column;
    gap: 30px;
  }

  .nav-card.prev,
  .nav-card.next {
    align-items: center;
    text-align: center;
  }

  #relatedArticlesGrid {
    grid-template-columns: 1fr !important;
  }
}