/* ==========================================================================
   NextGen Download Manager (NextGen-DLM)
   Specialized Blog Stylesheet — Premium typography, grids, and details
   ========================================================================== */

/* 1. Blog Hero Header */
.blog-hero {
  padding: 8rem 0 4rem 0;
  text-align: center;
  background: radial-gradient(circle at top center, rgba(0, 51, 255, 0.03) 0%, rgba(255, 255, 255, 0) 65%);
}

.blog-hero h1 {
  font-size: 3.5rem;
  font-weight: 850;
  letter-spacing: -0.04em;
  color: var(--color-text-primary, #090d16);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.blog-hero h1 span {
  background: linear-gradient(135deg, #0033ff 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-hero p {
  font-size: 1.15rem;
  color: var(--color-text-secondary, #64748b);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.5;
}

/* 2. Blog Card Grids */
.blog-grid-section {
  padding: 2rem 0 8rem 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
  margin-top: 3rem;
}

.blog-card {
  background: #ffffff;
  border: 1px solid var(--border-light, #e2e8f0);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
  text-decoration: none;
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 51, 255, 0.04);
  border-color: rgba(0, 51, 255, 0.15);
}

.blog-card-img-wrapper {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
  background-color: #f8fafc;
}

.blog-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.blog-card:hover .blog-card-img {
  transform: scale(1.05);
}

.blog-card-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card-tag-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.blog-card-tag {
  font-family: monospace;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-primary, #0033ff);
  background-color: rgba(0, 51, 255, 0.05);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  letter-spacing: 0.05em;
}

.blog-card-date {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--color-text-secondary, #64748b);
}

.blog-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-primary, #090d16);
  line-height: 1.3;
  margin-bottom: 0.75rem;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--color-primary, #0033ff);
}

.blog-card-description {
  font-size: 0.92rem;
  color: var(--color-text-secondary, #64748b);
  line-height: 1.55;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light, #e2e8f0);
  padding-top: 1.15rem;
}

.blog-author {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.blog-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(0, 51, 255, 0.1);
}

.blog-author-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-primary, #090d16);
}

.blog-read-time {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--color-text-secondary, #64748b);
}

/* 3. Blog Single Post Layout */
.blog-post-section {
  padding: 8rem 0;
  background-color: #fafbfd;
}

.blog-post-container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.blog-post-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.blog-post-category-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.blog-post-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.04em;
  color: var(--color-text-primary, #090d16);
  margin-bottom: 1.5rem;
}

.blog-post-author-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light, #e2e8f0);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.blog-post-main-image-box {
  width: 100%;
  max-height: 420px;
  border-radius: 24px;
  overflow: hidden;
  margin-bottom: 4rem;
  border: 1px solid var(--border-light, #e2e8f0);
  box-shadow: 0 20px 50px rgba(0, 51, 255, 0.02);
}

.blog-post-main-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 4. Article Rich Content Typography */
.blog-post-content {
  font-size: 1.1rem;
  line-height: 1.75;
  color: #334155; /* highly readable slate */
}

.blog-post-content p {
  margin-bottom: 1.75rem;
}

.blog-post-content h2 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-text-primary, #090d16);
  margin-top: 3rem;
  margin-bottom: 1.15rem;
  letter-spacing: -0.03em;
}

.blog-post-content h3 {
  font-size: 1.4rem;
  font-weight: 750;
  color: var(--color-text-primary, #090d16);
  margin-top: 2.25rem;
  margin-bottom: 1rem;
}

.blog-post-content code {
  font-family: monospace;
  font-size: 0.88rem;
  background-color: #f1f5f9;
  color: var(--color-primary, #0033ff);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-weight: 600;
}

.blog-post-content pre {
  background-color: #090d16;
  color: #cbd5e1;
  padding: 1.5rem;
  border-radius: 16px;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.blog-post-content pre code {
  background-color: transparent;
  color: inherit;
  padding: 0;
  font-weight: 400;
  font-size: 0.85rem;
}

.blog-post-content ul, 
.blog-post-content ol {
  margin-bottom: 1.75rem;
  padding-left: 1.5rem;
}

.blog-post-content li {
  margin-bottom: 0.65rem;
}

.blog-post-content blockquote {
  border-left: 4px solid var(--color-primary, #0033ff);
  background-color: rgba(0, 51, 255, 0.02);
  padding: 1.25rem 1.75rem;
  border-radius: 0 16px 16px 0;
  margin: 2.5rem 0;
  font-style: italic;
  color: #475569;
}

.blog-post-content blockquote p {
  margin-bottom: 0;
}

/* 5. Back Button and Social Shares */
.blog-post-actions-footer {
  margin-top: 4.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border-light, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-back-blog {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary, #64748b);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.btn-back-blog:hover {
  color: var(--color-primary, #0033ff);
}

.blog-social-share-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.share-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-light, #e2e8f0);
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary, #64748b);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.share-btn:hover {
  color: var(--color-primary, #0033ff);
  border-color: rgba(0, 51, 255, 0.15);
  transform: translateY(-2px);
}

/* 6. Media Queries for Responsiveness */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-hero h1 {
    font-size: 2.75rem;
  }
  .blog-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .blog-post-title {
    font-size: 2.25rem;
  }
  .blog-post-actions-footer {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
  }
}

/* 7. Blog Filter Bar & Interactive Category Switching */
.blog-filter-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.filter-tab {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--border-light, #e2e8f0);
  backdrop-filter: blur(10px);
  padding: 0.65rem 1.35rem;
  border-radius: 14px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary, #64748b);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.filter-tab:hover {
  background: rgba(0, 51, 255, 0.04);
  color: var(--color-primary, #0033ff);
  border-color: rgba(0, 51, 255, 0.15);
  transform: translateY(-1px);
}

.filter-tab.active {
  background: var(--color-primary, #0033ff);
  color: #ffffff;
  border-color: var(--color-primary, #0033ff);
  box-shadow: 0 4px 12px rgba(0, 51, 255, 0.15);
}

/* Responsive Grid and Transition Extensions */
.blog-card {
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}

.blog-card.hidden {
  opacity: 0;
  transform: scale(0.95) translateY(10px);
  pointer-events: none;
  display: none !important;
}