/* ============================================================
   BlogSphere - Blog Listing Page Stylesheet
   ============================================================
   File:     assets/css/blog.css
   Purpose:  Styles for blog listing page (blog.php)

   Table of Contents:
     1. Blog Hero Header
     2. Filters & Search Bar
     3. Filter Pills
     4. Blog Layout (Grid + Sidebar)
     5. Blog Post Cards
     6. No Results State
     7. Pagination
     8. Inline Ad
     9. Blog Responsive
   ============================================================ */

/* ============================================================
   1. BLOG HERO HEADER
   ============================================================ */
.blog-hero {
  background: linear-gradient(135deg, #f8f9fc 0%, #eef0fa 100%);
  padding: var(--space-3xl) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.08), transparent);
  border-radius: 50%;
}

.blog-hero::after {
  content: '';
  position: absolute;
  bottom: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(162, 155, 254, 0.08), transparent);
  border-radius: 50%;
}

.blog-hero-content {
  position: relative;
  text-align: center;
  z-index: 1;
}

.blog-hero-title {
  font-size: var(--text-5xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
}

.blog-breadcrumb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  font-size: var(--text-sm);
  flex-wrap: wrap;
}

.breadcrumb-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb-separator {
  color: var(--color-text-light);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: var(--weight-medium);
}

.blog-hero-desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* ============================================================
   2. FILTERS & SEARCH BAR
   ============================================================ */
.blog-filters-section {
  padding: var(--space-lg) 0 var(--space-md);
  background-color: var(--color-bg);
}

.blog-filters-bar {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-lg);
}

/* Filter Control - Category Dropdown */
.filter-control {
  position: relative;
}

.filter-category {
  position: relative;
}

.filter-select {
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  font-size: var(--text-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
  appearance: none;
  outline: none;
  transition: all var(--transition-fast);
}

.filter-select:hover,
.filter-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.filter-select-icon {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

/* Filter Control - Search Input */
.filter-search {
  display: flex;
  align-items: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 0.5rem 0 1rem;
  transition: all var(--transition-fast);
}

.filter-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.filter-search-icon {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-right: var(--space-sm);
}

.filter-search-input {
  flex: 1;
  padding: 0.75rem 0;
  border: none;
  background: transparent;
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none !important;
  min-width: 0;
}

.filter-search-input::placeholder {
  color: var(--color-text-light);
}

.filter-search-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-xs);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.filter-search-submit:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* ============================================================
   3. FILTER PILLS
   ============================================================ */
.blog-filter-pills {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding-bottom: var(--space-sm);
  overflow-x: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.blog-filter-pills::-webkit-scrollbar {
  display: none;
}

.filter-pill {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
}

.filter-pill.active {
  background-color: var(--color-text);
  color: white;
  border-color: var(--color-text);
}

.filter-pills-divider {
  color: var(--color-border);
  margin: 0 var(--space-xs);
  font-weight: var(--weight-normal);
  user-select: none;
}

/* ============================================================
   4. BLOG LAYOUT (Grid + Sidebar)
   ============================================================ */
.blog-main-section {
  padding-top: var(--space-lg);
}

.blog-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-2xl);
  align-items: start;
}

.blog-posts-area {
  min-width: 0;
}

/* ============================================================
   5. BLOG POST CARDS
   ============================================================ */
.blog-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

/* Featured first card spans 2 columns */
.blog-post-card-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
}

.blog-post-card-featured .blog-post-card-link {
  display: contents;
}

.blog-post-card-featured .blog-post-thumb {
  height: 100%;
  min-height: 320px;
}

.blog-post-card-featured .blog-post-body {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.blog-post-card-featured .blog-post-title {
  font-size: var(--text-2xl);
}

.blog-post-card-featured .blog-read-more-btn {
  margin: 0 var(--space-xl) var(--space-xl);
  align-self: flex-start;
}

/* Regular Post Card */
.blog-post-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  /* width: 400px; */
}

.blog-post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
}

.blog-post-card-link {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-post-thumb {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background-color: var(--color-bg-tertiary);
}

.blog-post-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.blog-featured-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 0.25rem 0.7rem;
  font-size: 11px;
  font-weight: var(--weight-bold);
  background-color: var(--color-warning);
  color: white;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 2;
}

.blog-featured-badge i {
  font-size: 9px;
}

.blog-category-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  padding: 0.3rem 0.8rem;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: white;
  border-radius: var(--radius-sm);
  z-index: 2;
}

.blog-post-body {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-post-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: var(--leading-snug);
  transition: color var(--transition-fast);
}

.blog-post-card:hover .blog-post-title {
  color: var(--color-primary);
}

.blog-post-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: var(--leading-normal);
  flex: 1;
}

.blog-post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
}

.blog-post-author-info {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
}

.blog-author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.blog-author-details {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.blog-author-name {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.blog-post-date {
  font-size: 11px;
  color: var(--color-text-muted);
}

.blog-post-stats {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 11px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.blog-post-stats span {
  display: flex;
  align-items: center;
  gap: 3px;
}

.blog-read-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.6rem 1rem;
  margin: 0 var(--space-md) var(--space-md);
  background-color: var(--color-text);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.blog-read-more-btn:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.blog-read-more-btn i {
  transition: transform var(--transition-fast);
  font-size: 10px;
}

.blog-read-more-btn:hover i {
  transform: translateX(3px);
}

/* ============================================================
   6. NO RESULTS STATE
   ============================================================ */
.no-results-card {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  background-color: var(--color-bg-secondary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  margin: var(--space-xl) 0;
}

.no-results-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  margin: 0 auto var(--space-lg);
  opacity: 0.7;
}

.no-results-title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.no-results-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto var(--space-xl);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   7. PAGINATION
   ============================================================ */
.pagination-nav {
  margin-top: var(--space-xl);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.page-item .page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.page-item .page-link:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-item.active .page-link {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--color-primary);
}

.page-item.disabled .page-link {
  color: var(--color-text-light);
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border-light);
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================================
   8. INLINE AD
   ============================================================ */
.blog-inline-ad {
  grid-column: 1 / -1;
  margin: var(--space-sm) 0;
}

/* ============================================================
   9. BLOG RESPONSIVE
   ============================================================ */

/* Large Desktop: 1200px */
@media (max-width: 1200px) {
  .blog-posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-layout {
    gap: var(--space-xl);
  }
}

/* Tablet: 1024px */
@media (max-width: 1024px) {
  .blog-hero-title {
    font-size: var(--text-4xl);
  }

  .blog-layout {
    grid-template-columns: 1fr;
  }

  .blog-sidebar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .blog-post-card-featured {
    grid-template-columns: 1fr;
  }

  .blog-post-card-featured .blog-post-thumb {
    min-height: 280px;
  }

  .blog-post-card-featured .blog-post-body {
    padding: var(--space-lg);
  }

  .blog-post-card-featured .blog-read-more-btn {
    margin: 0 var(--space-lg) var(--space-lg);
  }
}

/* Mobile: 768px */
@media (max-width: 768px) {
  .blog-hero {
    padding: var(--space-2xl) 0 var(--space-xl);
  }

  .blog-hero-title {
    font-size: var(--text-3xl);
  }

  .blog-hero-desc {
    font-size: var(--text-sm);
  }

  .blog-filters-bar {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .blog-filter-pills {
    gap: var(--space-xs);
    padding-bottom: var(--space-md);
  }

  .filter-pill {
    padding: 0.4rem 0.85rem;
    font-size: var(--text-xs);
  }

  .filter-pills-divider {
    display: none;
  }

  .blog-posts-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .blog-sidebar {
    grid-template-columns: 1fr;
  }

  .blog-post-card-featured .blog-post-title {
    font-size: var(--text-xl);
  }

  .blog-post-thumb {
    height: 180px;
  }

  .no-results-card {
    padding: var(--space-2xl) var(--space-md);
  }

  .no-results-title {
    font-size: var(--text-xl);
  }

  .page-item .page-link {
    min-width: 36px;
    height: 36px;
    font-size: var(--text-xs);
  }
}

/* Small Mobile: 480px */
@media (max-width: 480px) {
  .blog-hero {
    padding: var(--space-xl) 0;
  }

  .blog-hero-title {
    font-size: var(--text-2xl);
  }

  .blog-post-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .blog-post-stats {
    width: 100%;
    justify-content: space-between;
  }

  .pagination {
    gap: 4px;
  }

  .page-item .page-link {
    min-width: 32px;
    height: 32px;
    padding: 0 var(--space-xs);
  }
}

/* ============================================================
   SIDEBAR WIDGETS - Add to blog.css
   ============================================================ */

.blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
}

.sidebar-widget {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.sidebar-widget-ad {
  padding: var(--space-sm);
  background-color: transparent;
  border: 1px dashed var(--color-border);
}

.sidebar-widget-title {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border-light);
}

/* Search Widget */
.sidebar-widget-search-wrap {
  display: flex;
  align-items: center;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.sidebar-widget-search-input {
  flex: 1;
  padding: 0.65rem 0.85rem;
  border: none;
  background: transparent;
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none !important;
}

.sidebar-widget-search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  margin: 2px;
}

.sidebar-widget-search-btn:hover {
  background-color: var(--color-primary-dark);
}

/* Popular Posts */
.sidebar-popular-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.sidebar-popular-item {
  display: flex;
  gap: var(--space-sm);
  text-decoration: none;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.sidebar-popular-item:hover {
  background-color: var(--color-bg-secondary);
}

.sidebar-popular-thumb {
  width: 72px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background-color: var(--color-bg-tertiary);
}

.sidebar-popular-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar-popular-info {
  flex: 1;
  min-width: 0;
}

.sidebar-popular-category {
  font-size: 10px;
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sidebar-popular-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  margin: 3px 0;
  line-height: var(--leading-snug);
}

.sidebar-popular-meta {
  font-size: 11px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 3px;
}

/* Categories Widget */
.sidebar-categories-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-category-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6rem 0.75rem;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.sidebar-category-link:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-primary);
}

.sidebar-category-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sidebar-category-name {
  flex: 1;
}

.sidebar-category-count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Newsletter Widget */
.sidebar-newsletter-card {
  background: var(--gradient-primary);
  margin: calc(var(--space-lg) * -1);
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: center;
}

.sidebar-newsletter-card-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: white;
  margin-bottom: var(--space-xs);
}

.sidebar-newsletter-card-desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-md);
}

.sidebar-newsletter-card-form {
  display: flex;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-full);
  padding: 4px;
  backdrop-filter: blur(4px);
}

.sidebar-newsletter-card-input {
  flex: 1;
  padding: 0.5rem 0.85rem;
  border: none;
  background: transparent;
  color: white;
  font-size: var(--text-sm);
  outline: none !important;
  min-width: 0;
}

.sidebar-newsletter-card-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.sidebar-newsletter-card-btn {
  width: 36px;
  height: 36px;
  background-color: white;
  color: var(--color-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.sidebar-newsletter-card-btn:hover {
  background-color: var(--color-text);
  color: white;
  transform: scale(1.05);
}

/* Tag Cloud Widget */
.sidebar-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.sidebar-tag-link {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.sidebar-tag-link:hover {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-1px);
}