/* ============================================================
   Blog Styles - eBrains Digital
   Uses design tokens from style.css
   ============================================================ */

/* ---------- Blog Index Hero ---------- */
.blog-index-hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.blog-index-hero-content {
  max-width: 720px;
}

.blog-index-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.blog-index-hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Category Nav ---------- */
.blog-categories {
  padding: 0 0 40px;
}

.blog-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.blog-category-pill {
  padding: 6px 16px;
  border-radius: 50px;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}

.blog-category-pill:hover,
.blog-category-pill.active {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(0, 212, 255, 0.08);
}

/* ---------- Blog Grid ---------- */
.blog-listing {
  padding: 40px 0 120px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog-empty {
  text-align: center;
  padding: 80px 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ---------- Blog Card ---------- */
.blog-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.blog-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 212, 255, 0.08);
}

.blog-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-surface-hover);
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.blog-card-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.blog-card-category {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(0, 212, 255, 0.1);
  padding: 3px 10px;
  border-radius: 50px;
}

.blog-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.blog-card-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.blog-card-read {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.blog-card:hover .blog-card-read {
  letter-spacing: 0.02em;
}

/* ---------- Blog Article ---------- */
.blog-article {
  position: relative;
}

/* ---------- Blog Header (single post) ---------- */
.blog-header {
  padding: 160px 0 48px;
  position: relative;
  overflow: hidden;
}

.blog-header .container {
  max-width: 760px;
}

.blog-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.blog-excerpt {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 8px;
}

.breadcrumb {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 20px;
  transition: var(--transition);
}

.breadcrumb:hover {
  color: var(--primary);
}

/* ---------- Blog Meta ---------- */
.blog-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.blog-category-tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(0, 212, 255, 0.1);
  padding: 4px 12px;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition);
}

.blog-category-tag:hover {
  background: rgba(0, 212, 255, 0.2);
}

.blog-date,
.blog-reading-time {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- Hero Image ---------- */
.blog-hero-image {
  max-width: 760px;
  margin: 0 auto 48px;
}

.blog-hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
}

/* ---------- Article Body ---------- */
.blog-body {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: 60px;
}

.blog-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.blog-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.blog-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.blog-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

.blog-content a:hover {
  color: #33ddff;
}

.blog-content ul,
.blog-content ol {
  margin: 16px 0 24px 24px;
  color: var(--text-secondary);
}

.blog-content li {
  margin-bottom: 8px;
  line-height: 1.7;
  font-size: 1rem;
}

.blog-content ul li::marker {
  color: var(--primary);
}

.blog-content ol li::marker {
  color: var(--primary);
  font-weight: 600;
}

.blog-content blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--bg-surface);
  border-left: 3px solid;
  border-image: var(--gradient) 1;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.blog-content blockquote p {
  margin-bottom: 0;
  font-style: italic;
  color: var(--text-primary);
}

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

.blog-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 24px 0;
}

/* ---------- Content Sections ---------- */
.blog-section {
  margin-bottom: 40px;
}

.blog-section:last-child {
  margin-bottom: 0;
}

.blog-main {
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-conclusion {
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ---------- FAQ Section ---------- */
.blog-faq {
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-faq h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.blog-faq h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  margin-bottom: 8px;
}

.blog-faq p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- CTA Section ---------- */
.blog-cta {
  padding: 80px 0;
  margin-top: 40px;
  background: var(--bg-surface);
  text-align: center;
}

.blog-cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.blog-cta-content h2,
.blog-cta-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.blog-cta-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.blog-cta .btn {
  margin-top: 8px;
}

/* ---------- Related Posts ---------- */
.blog-related {
  padding: 100px 0 80px;
}

.blog-related .section-header {
  text-align: center;
  margin-bottom: 48px;
}

/* ---------- Tags ---------- */
.blog-tags {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 0 60px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.blog-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* ---------- Blog Language Switch ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
}

.lang-switch a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-decoration: none;
  padding: 3px 7px;
  border-radius: 4px;
  transition: var(--transition);
  cursor: pointer;
}

.lang-switch a:hover {
  color: var(--text-primary);
}

.lang-switch a.active {
  color: var(--primary);
  background: rgba(0, 212, 255, 0.08);
}

.lang-switch .lang-sep {
  color: var(--text-muted);
  font-size: 0.7rem;
  opacity: 0.4;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-index-hero {
    padding: 120px 0 60px;
  }

  .blog-header {
    padding: 120px 0 32px;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .blog-cta {
    padding: 60px 0;
  }

  .blog-related {
    padding: 60px 0;
  }

  .blog-listing {
    padding: 32px 0 80px;
  }

  .blog-content h2 {
    margin-top: 36px;
  }

  .blog-content h3 {
    margin-top: 24px;
  }
}