/**
 * Article CSS - Editorial Layout, Typography, Table of Contents, Callouts, Steps, FAQ
 */

.article-container {
  max-width: var(--article-width);
  margin-left: auto;
  margin-right: auto;
}

/* Article Header */
.article-header {
  margin-bottom: 2rem;
}

.article-header-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.article-title {
  font-size: 2.65rem;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 1.25rem;
  color: var(--text-color);
}

.article-lead {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.article-byline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
  font-size: 0.9rem;
  color: var(--muted-text);
}

.author-info-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar-md {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-secondary);
  border: 1px solid var(--border-color);
}

.author-name-title {
  display: flex;
  flex-direction: column;
}

.author-name-title .name {
  font-weight: 600;
  color: var(--text-color);
}

.author-name-title .title {
  font-size: 0.82rem;
  color: var(--muted-text);
}

.article-dates-reading {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Article Tools Bar (Share, Print) */
.article-tools-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 0.75rem 1rem;
  background: var(--surface-secondary);
  border-radius: var(--radius-sm);
}

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

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.share-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-1px);
}

/* Featured Image */
.article-featured-image {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.article-featured-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.image-caption {
  font-size: 0.85rem;
  color: var(--muted-text);
  padding: 0.5rem 0.75rem;
  background-color: var(--surface-secondary);
  text-align: center;
}

/* Table of Contents */
.toc-box {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 2rem 0 2.5rem 0;
}

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

.toc-title {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-toggle {
  font-size: 0.85rem;
  color: var(--primary-color);
  font-weight: 500;
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding-left: 0.5rem;
}

.toc-item a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.45;
  transition: color var(--transition-fast);
  display: inline-block;
}

.toc-item a:hover, .toc-item a.active {
  color: var(--primary-color);
  font-weight: 500;
}

.toc-item.level-3 {
  padding-left: 1.25rem;
  font-size: 0.9rem;
}

/* Key Takeaways Callout */
.key-takeaways {
  background-color: var(--surface-color);
  border: 2px solid var(--primary-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 2.25rem 0;
}

.key-takeaways-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.key-takeaways ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.key-takeaways li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--text-color);
}

.key-takeaways li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--secondary-color);
  font-weight: 700;
}

/* Editorial Body Typography */
.article-body {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--text-color);
}

.article-body h2 {
  font-size: 1.85rem;
  margin-top: 2.75rem;
  margin-bottom: 1rem;
  padding-top: 0.5rem;
}

.article-body h3 {
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-body p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.75;
}

.article-body ul, .article-body ol {
  margin: 1.25rem 0 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.article-body ul {
  list-style-type: disc;
}

.article-body ol {
  list-style-type: decimal;
}

.article-body li {
  line-height: 1.65;
  color: var(--text-color);
}

/* Callout Boxes */
.callout {
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  border-left: 4px solid;
}

.callout-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.callout-tip {
  background-color: var(--tip-bg);
  border-color: var(--tip-text);
  color: var(--tip-text);
}

.callout-note {
  background-color: var(--surface-secondary);
  border-color: var(--muted-text);
  color: var(--text-color);
}

.callout-warning {
  background-color: var(--warning-bg);
  border-color: var(--warning-text);
  color: var(--warning-text);
}

.callout-protip {
  background-color: var(--secondary-light);
  border-color: var(--secondary-color);
  color: var(--secondary-color);
}

/* Step-by-Step Instructions */
.step-container {
  margin: 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.step-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  gap: 1.25rem;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content {
  flex-grow: 1;
}

.step-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.step-content p {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

/* Comparison Tables & Pros/Cons */
.pros-cons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.pro-box, .con-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.pro-box { border-top: 4px solid var(--secondary-color); }
.con-box { border-top: 4px solid var(--danger-text); }

.pro-box h4, .con-box h4 {
  margin-bottom: 0.75rem;
}

.pro-box ul, .con-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pro-box li::before { content: "+ "; color: var(--secondary-color); font-weight: 700; }
.con-box li::before { content: "− "; color: var(--danger-text); font-weight: 700; }

/* FAQ Accordion */
.faq-section {
  margin: 3rem 0;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: var(--surface-color);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1rem 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
}

.faq-answer {
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Author Bio Box */
.author-bio-box {
  display: flex;
  gap: 1.5rem;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin: 3rem 0;
}

.author-bio-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--border-color);
}

.author-bio-content h4 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.author-bio-role {
  font-size: 0.85rem;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.author-bio-content p {
  font-size: 0.92rem;
  margin-bottom: 0.75rem;
}