/**
 * Harlink Blog & Knowledge Base Styles
 * High readability, responsive typography, Glassmorphism, and Dark/Light mode integration.
 */

/* Blog Layout Container */
.blog-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 30px 18px 60px;
}

/* Breadcrumb Navigation */
.blog-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.blog-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.blog-breadcrumb a:hover {
  color: var(--accent-cyan);
}

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

.blog-breadcrumb .current {
  color: var(--accent-cyan);
  font-weight: 600;
}

[data-mode="light"] .blog-breadcrumb .current {
  color: #0284C7;
}

/* Hero Section in Blog Hub */
.blog-hub-hero {
  text-align: center;
  padding: 30px 16px 40px;
}

.blog-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 99px;
  background: rgba(102, 252, 241, 0.1);
  border: 1px solid rgba(102, 252, 241, 0.3);
  color: var(--accent-cyan);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 14px;
}

[data-mode="light"] .blog-badge-tag {
  background: rgba(2, 132, 199, 0.08);
  border-color: rgba(2, 132, 199, 0.25);
  color: #0284C7;
}

.blog-hub-title {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #FFFFFF 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-mode="light"] .blog-hub-title {
  background: linear-gradient(135deg, #0F172A 30%, #0284C7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-hub-subtitle {
  font-size: 0.96rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Category Filter Pills */
.blog-filter-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 24px 0 36px;
}

.blog-filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 99px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.blog-filter-btn:hover,
.blog-filter-btn.active {
  background: rgba(102, 252, 241, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

[data-mode="light"] .blog-filter-btn {
  background: #FFFFFF;
}

[data-mode="light"] .blog-filter-btn:hover,
[data-mode="light"] .blog-filter-btn.active {
  background: rgba(2, 132, 199, 0.08);
  border-color: #0284C7;
  color: #0284C7;
}

/* Blog Cards Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.blog-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(102, 252, 241, 0.12);
}

[data-mode="light"] .blog-card {
  background: #FFFFFF;
  border-color: #E2E8F0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

[data-mode="light"] .blog-card:hover {
  border-color: #0284C7;
  box-shadow: 0 12px 28px rgba(2, 132, 199, 0.1);
}

/* Blog Card Cover Image */
.blog-card-cover-link {
  display: block;
  width: 100%;
  height: 160px;
  max-height: 160px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  position: relative;
}

[data-mode="light"] .blog-card-cover-link {
  background: #F8FAFC;
  border-color: #E2E8F0;
}

.blog-card-cover {
  width: 100%;
  height: 100%;
  max-height: 160px;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.blog-card:hover .blog-card-cover {
  transform: scale(1.04);
}

/* Single Article Featured Cover Image */
.blog-post-cover-wrapper {
  width: 100%;
  max-height: 480px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: 22px 0 32px;
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow-md);
}

.blog-post-cover {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

.blog-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.blog-card-badge {
  font-size: 0.74rem;
  padding: 2px 10px;
  border-radius: 99px;
  background: rgba(102, 252, 241, 0.1);
  color: var(--accent-cyan);
  font-weight: 700;
  border: 1px solid rgba(102, 252, 241, 0.25);
}

[data-mode="light"] .blog-card-badge {
  background: rgba(2, 132, 199, 0.08);
  color: #0284C7;
  border-color: rgba(2, 132, 199, 0.2);
}

.blog-card-time {
  font-size: 0.74rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.blog-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 10px;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--accent-cyan);
}

[data-mode="light"] .blog-card:hover .blog-card-title {
  color: #0284C7;
}

.blog-card-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.blog-card-read-more {
  color: var(--accent-cyan);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

[data-mode="light"] .blog-card-read-more {
  color: #0284C7;
}

/* ==========================================================================
   SINGLE ARTICLE READER STYLES
   ========================================================================== */

.article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-title {
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.45;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.article-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.article-author-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--accent-cyan);
  padding: 4px;
  background: rgba(255, 255, 255, 0.05);
}

.article-body {
  font-size: 1rem;
  line-height: 1.95;
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: 18px;
  color: var(--text-primary);
}

.article-body .lead-paragraph {
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--border-subtle);
}

.article-body h2 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-top: 36px;
  margin-bottom: 14px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-body h2::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 22px;
  background: var(--accent-cyan);
  border-radius: 4px;
}

[data-mode="light"] .article-body h2::before {
  background: #0284C7;
}

.article-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.article-body ul, 
.article-body ol {
  padding-right: 24px;
  margin-bottom: 20px;
}

.article-body li {
  margin-bottom: 8px;
  line-height: 1.75;
}

.article-body code {
  background: rgba(102, 252, 241, 0.08);
  border: 1px solid rgba(102, 252, 241, 0.2);
  color: var(--accent-cyan);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
  direction: ltr;
  display: inline-block;
}

[data-mode="light"] .article-body code {
  background: #F1F5F9;
  border-color: #CBD5E1;
  color: #0284C7;
}

/* Callout Box */
.blog-callout {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin: 24px 0;
  background: rgba(102, 252, 241, 0.05);
  border: 1px solid rgba(102, 252, 241, 0.25);
  align-items: flex-start;
}

.blog-callout-info {
  border-right: 4px solid var(--accent-cyan);
}

[data-mode="light"] .blog-callout {
  background: rgba(2, 132, 199, 0.05);
  border-color: rgba(2, 132, 199, 0.2);
}

[data-mode="light"] .blog-callout-info {
  border-right-color: #0284C7;
}

.callout-icon {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

[data-mode="light"] .callout-icon {
  color: #0284C7;
}

.callout-content {
  font-size: 0.92rem;
  line-height: 1.7;
}

/* Comparison Table */
.blog-table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 24px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.blog-comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: right;
  font-size: 0.88rem;
}

.blog-comparison-table th {
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 16px;
  border-bottom: 2px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: 700;
}

[data-mode="light"] .blog-comparison-table th {
  background: #F8FAFC;
}

.blog-comparison-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

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

[data-mode="light"] .blog-comparison-table tr:hover td {
  background: #F8FAFC;
}

/* FAQ Accordion */
.blog-faq-section {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

[data-mode="light"] .faq-card {
  background: #FFFFFF;
}

.faq-question {
  padding: 16px 20px;
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-answer {
  padding: 0 20px 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Conversion CTA Banner */
.blog-cta-banner {
  margin-top: 48px;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(102, 252, 241, 0.1) 0%, rgba(69, 182, 254, 0.1) 100%);
  border: 1.5px solid rgba(102, 252, 241, 0.35);
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

[data-mode="light"] .blog-cta-banner {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.08) 0%, rgba(14, 165, 233, 0.12) 100%);
  border-color: rgba(2, 132, 199, 0.3);
}

.blog-cta-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.blog-cta-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

/* Social Share Bar */
.article-share-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 32px 0;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

[data-mode="light"] .article-share-bar {
  background: #F8FAFC;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s ease;
}

.share-btn:hover {
  opacity: 0.85;
}

.share-btn-telegram { background: #2AABEE; color: #fff; }
.share-btn-whatsapp { background: #25D366; color: #fff; }
.share-btn-copy { background: var(--bg-card); border: 1px solid var(--border-subtle); color: var(--text-primary); cursor: pointer; }

/* Mobile adjustments */
@media (max-width: 680px) {
  .blog-container {
    padding: 20px 14px 40px;
  }
  .blog-hub-title {
    font-size: 1.6rem;
  }
  .article-title {
    font-size: 1.45rem;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .article-meta-row {
    flex-direction: column;
    align-items: flex-start;
  }
}