/* ==========================================================================
   Eagna-Smart Solutions, Inc. - Blog & Article Stylesheet
   Inherits design tokens from /style.css
   ========================================================================== */

/* --- Blog Hub Hero --- */
.blog-hero {
  padding: 130px 0 40px;
  background: radial-gradient(circle at 50% 10%, rgba(59, 130, 246, 0.05) 0%, transparent 60%);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.blog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
  border: 1px solid rgba(59, 130, 246, 0.15);
}

.blog-hero-title {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.blog-hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 650px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

/* --- Search & Tag Filter Bar --- */
.blog-controls {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.blog-search-wrapper {
  position: relative;
  width: 100%;
}

.blog-search-input {
  width: 100%;
  padding: 14px 20px 14px 46px;
  font-size: 1rem;
  font-family: var(--font-body);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background: var(--color-bg);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.blog-search-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.blog-search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.blog-tags-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.tag-filter-btn {
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-body);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.tag-filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.tag-filter-btn.active {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.25);
}

/* --- Blog Content Grid Section --- */
.blog-content-section {
  padding: 50px 0 90px;
  background: var(--color-bg-sec);
  min-height: 50vh;
}

/* Featured Article Card */
.featured-article-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 36px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.featured-article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.featured-article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent) 0%, #06b6d4 100%);
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #fef3c7;
  color: #92400e;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.article-category-badge {
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.75rem;
}

.featured-title {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 14px;
  line-height: 1.3;
}

.featured-title a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

.featured-title a:hover {
  color: var(--color-accent);
}

.featured-summary {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

/* Articles Standard Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.article-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.article-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 10px;
  line-height: 1.35;
}

.article-card-title a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

.article-card-title a:hover {
  color: var(--color-accent);
}

.article-card-summary {
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
}

.read-more-link {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition-fast);
}

.read-more-link:hover {
  gap: 8px;
  color: var(--color-accent-hover);
}

.no-results-msg {
  text-align: center;
  padding: 50px 20px;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  display: none;
}

/* ==========================================================================
   Single Article Detail Page
   ========================================================================== */

.article-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 120px 20px 80px;
}

.article-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.article-breadcrumbs a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.article-breadcrumbs a:hover {
  color: var(--color-accent);
}

.article-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.article-main-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.article-lead-summary {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

/* Article Body Typography */
.article-body {
  font-size: 1.075rem;
  line-height: 1.8;
  color: #2d3748;
}

.article-body h2 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 44px 0 16px;
  line-height: 1.3;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 28px 0 12px;
  line-height: 1.4;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 24px;
  padding-left: 8px;
}

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

.article-body strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.article-body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition-fast);
}

.article-body a:hover {
  color: var(--color-accent-hover);
}

.article-body blockquote {
  background: var(--color-bg-sec);
  border-left: 4px solid var(--color-accent);
  padding: 18px 22px;
  border-radius: 0 8px 8px 0;
  margin: 28px 0;
  font-style: italic;
  color: var(--color-text-primary);
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

/* Tables */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
}

.article-body th, .article-body td {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.article-body th {
  background: var(--color-bg-sec);
  font-weight: 600;
  color: var(--color-text-primary);
}

.article-body tr:nth-child(even) {
  background: rgba(249, 250, 251, 0.5);
}

/* Code & Pre */
.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  color: #0f172a;
}

.article-body pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 18px 22px;
  border-radius: var(--border-radius-md);
  overflow-x: auto;
  margin: 26px 0;
}

.article-body pre code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: 0.9rem;
}

.article-body hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 40px 0;
}

/* Article Images & Figures */
.article-body figure,
.article-figure {
  margin: 36px 0;
  text-align: center;
}

.article-body img,
.article-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.25);
  display: block;
  margin: 0 auto;
}

.article-body figcaption,
.article-figure figcaption {
  margin-top: 14px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  line-height: 1.5;
}

/* --- Dynamic Call-To-Action (CTA) Box --- */
.article-cta-box {
  margin: 50px 0 30px;
  padding: 32px;
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(59, 130, 246, 0.2);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

.article-cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent);
}

.article-cta-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.article-cta-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.article-cta-btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* Author Box */
.article-author-box {
  margin-top: 50px;
  padding: 24px;
  border-radius: var(--border-radius-md);
  background: var(--color-bg-sec);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 18px;
}

.author-avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
  flex-shrink: 0;
}

.author-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.author-info p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Back Link */
.back-to-blog-row {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Homepage "Latest Insights" Section Styling
   ========================================================================== */
.insights-section {
  padding: 90px 0;
  background: var(--color-bg-sec);
  border-top: 1px solid var(--color-border);
}

.insights-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}

.insights-view-all {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.insights-view-all:hover {
  gap: 10px;
  color: var(--color-accent-hover);
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
  .blog-hero {
    padding: 100px 0 30px;
  }
  .blog-hero-title {
    font-size: 2.1rem;
  }
  .featured-article-card {
    padding: 24px;
  }
  .featured-title {
    font-size: 1.45rem;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .article-main-title {
    font-size: 1.85rem;
  }
  .article-container {
    padding: 100px 16px 60px;
  }
}