/*
  Blog Page Styles
  Beautiful, modern blog layout with skeleton loading
*/

/* Blog Header */
.blog-header {
  text-align: center;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.blog-subtitle {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

/* Blog Controls */
.blog-controls {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  max-width: 320px;
  width: 100%;
}

.search-box input {
  width: 100%;
  padding-right: 3rem;
  border-radius: 50px;
  border: 2px solid var(--border);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring);
}

.search-btn {
  position: absolute;
  right: 8px;
  background: transparent;
  border: none;
  padding: 0.5rem;
  color: var(--muted);
  cursor: pointer;
  border-radius: 50%;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.search-btn:hover {
  color: var(--primary);
  background: var(--primary-50);
}

#category-filter {
  min-width: 160px;
  border-radius: 50px;
  border: 2px solid var(--border);
  background: white;
  transition: border-color 0.2s ease;
}

#category-filter:focus {
  border-color: var(--primary);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Blog Post Card */
.blog-post {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  height: fit-content;
}

.blog-post:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.blog-post-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--surface);
}

.blog-post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.blog-post-content {
  padding: 1.5rem;
}

.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.blog-post-date {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.blog-post-category {
  background: var(--primary-50);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.blog-post-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.75rem;
  color: var(--fg);
}

.blog-post-excerpt {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.blog-post-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.blog-post-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.blog-post-author img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.read-more {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap 0.2s ease;
}

.read-more:hover {
  gap: 0.5rem;
}

/* Skeleton Loading */
.skeleton-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .skeleton-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .skeleton-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skeleton-card {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  animation: pulse 2s ease-in-out infinite;
}

.skeleton-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

.skeleton-content {
  padding: 1.5rem;
}

.skeleton-line {
  height: 12px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  border-radius: 6px;
  margin-bottom: 0.75rem;
  animation: shimmer 2s infinite;
}

.skeleton-line.short {
  width: 60%;
}

.skeleton-line.medium {
  width: 80%;
}

.skeleton-line.long {
  width: 100%;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

/* Loading State */
.loading-state {
  margin-bottom: 3rem;
}

/* Error State */
.error-state {
  text-align: center;
  padding: 3rem 1rem;
  margin-bottom: 3rem;
}

.error-content {
  max-width: 400px;
  margin: 0 auto;
}

.error-content svg {
  color: var(--muted);
  margin-bottom: 1rem;
}

.error-content h3 {
  color: var(--fg);
  margin-bottom: 0.5rem;
}

.error-content p {
  color: var(--muted);
  margin-bottom: 2rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  margin-bottom: 3rem;
}

.empty-content {
  max-width: 400px;
  margin: 0 auto;
}

.empty-content svg {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.empty-content h3 {
  color: var(--fg);
  margin-bottom: 0.5rem;
}

.empty-content p {
  color: var(--muted);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 3rem 0;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

/* Hide auxiliary page info by default for a cleaner look */
.page-info { display: none; }

/* Keep Prev/Next wider, but compact numeric buttons */
.pagination .btn:not(.page-btn) { min-width: 120px; }
.pagination .page-ellipsis { color: var(--muted); padding: 0 .25rem; }

.pagination .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Load More */
.load-more-container {
  text-align: center;
  margin: 3rem 0;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.load-more-spinner {
  animation: spin 1s linear infinite;
}

.load-more-spinner svg {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 767px) {
  .blog-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box {
    max-width: none;
  }
  
  .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .skeleton-grid {
    grid-template-columns: 1fr;
  }
  
  .pagination {
    flex-direction: column;
    gap: 1rem;
  }
  
  .pagination .btn {
    min-width: 200px;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .blog-post,
  .blog-post-image img,
  .skeleton-card,
  .skeleton-line,
  .skeleton-image,
  .load-more-spinner svg {
    animation: none;
    transition: none;
  }
  
  .blog-post:hover {
    transform: none;
  }
  
  .blog-post:hover .blog-post-image img {
    transform: none;
  }
}

/* Focus styles for better accessibility */
.blog-post:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .blog-post {
    border: 2px solid var(--fg);
  }
  
  .skeleton-line,
  .skeleton-image {
    background: var(--muted);
  }
}