/* ============================================
   AI Linghang Ju - Posts Grid Layout
   Unified grid layout for search, category and author pages
   ============================================ */

/* Grid container */
.ailhj-posts-grid,
.ailhj-search-posts-grid,
.ailhj-author-posts-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

/* Post card */
.ailhj-posts-grid .ailhj-post-card,
.ailhj-search-posts-grid .ailhj-post-card,
.ailhj-author-posts-grid .ailhj-post-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 20px;
  /* PC/Tablet: No border, no shadow by default */
  border: none;
  box-shadow: none;
}

/* PC/Tablet: Hover shadow */
@media (min-width: 577px) {
  .ailhj-posts-grid .ailhj-post-card:hover,
  .ailhj-search-posts-grid .ailhj-post-card:hover,
  .ailhj-author-posts-grid .ailhj-post-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
}

/* Mobile: Border, no shadow */
@media (max-width: 576px) {
  .ailhj-posts-grid .ailhj-post-card,
  .ailhj-search-posts-grid .ailhj-post-card,
  .ailhj-author-posts-grid .ailhj-post-card {
    border: 1px solid var(--main-border-color);
    box-shadow: none;
  }
  
  .ailhj-posts-grid .ailhj-post-card:active,
  .ailhj-search-posts-grid .ailhj-post-card:active,
  .ailhj-author-posts-grid .ailhj-post-card:active {
    opacity: 0.8;
  }
}

/* Thumbnail - Square aspect ratio */
.ailhj-posts-grid .ailhj-post-thumb,
.ailhj-search-posts-grid .ailhj-post-thumb,
.ailhj-author-posts-grid .ailhj-post-thumb {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 8px;
  background: #f5f5f5;
}

.ailhj-posts-grid .ailhj-post-thumb img,
.ailhj-search-posts-grid .ailhj-post-thumb img,
.ailhj-author-posts-grid .ailhj-post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.ailhj-posts-grid .ailhj-post-card:hover .ailhj-post-thumb img,
.ailhj-search-posts-grid .ailhj-post-card:hover .ailhj-post-thumb img,
.ailhj-author-posts-grid .ailhj-post-card:hover .ailhj-post-thumb img {
  transform: scale(1.05);
}

/* Content */
.ailhj-posts-grid .ailhj-post-content,
.ailhj-search-posts-grid .ailhj-post-content,
.ailhj-author-posts-grid .ailhj-post-content {
  padding: 12px 0 0 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Category */
.ailhj-posts-grid .ailhj-post-category-wrap,
.ailhj-search-posts-grid .ailhj-post-category-wrap,
.ailhj-author-posts-grid .ailhj-post-category-wrap {
  margin-bottom: 8px;
}

.ailhj-posts-grid .ailhj-post-category,
.ailhj-search-posts-grid .ailhj-post-category,
.ailhj-author-posts-grid .ailhj-post-category {
  display: inline-block;
  font-size: 12px;
  color: var(--ailhj-blue);
  background: var(--ailhj-blue-op1);
  padding: 3px 10px;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.ailhj-posts-grid .ailhj-post-category:hover,
.ailhj-search-posts-grid .ailhj-post-category:hover,
.ailhj-author-posts-grid .ailhj-post-category:hover {
  background: var(--ailhj-blue-op15);
  color: var(--ailhj-blue);
}

/* Title */
.ailhj-posts-grid .ailhj-post-title,
.ailhj-search-posts-grid .ailhj-post-title,
.ailhj-author-posts-grid .ailhj-post-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 10px 0;
  flex: 1;
}

.ailhj-posts-grid .ailhj-post-title a,
.ailhj-search-posts-grid .ailhj-post-title a,
.ailhj-author-posts-grid .ailhj-post-title a {
  color: var(--body-color);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

.ailhj-posts-grid .ailhj-post-title a:hover,
.ailhj-search-posts-grid .ailhj-post-title a:hover,
.ailhj-author-posts-grid .ailhj-post-title a:hover {
  color: var(--ailhj-blue);
}

/* Meta */
.ailhj-posts-grid .ailhj-post-meta,
.ailhj-search-posts-grid .ailhj-post-meta,
.ailhj-author-posts-grid .ailhj-post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--muted-color);
  padding-top: 10px;
  flex-wrap: wrap;
}

.ailhj-posts-grid .ailhj-post-meta .meta-item,
.ailhj-search-posts-grid .ailhj-post-meta .meta-item,
.ailhj-author-posts-grid .ailhj-post-meta .meta-item {
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.ailhj-posts-grid .ailhj-post-meta .meta-date,
.ailhj-search-posts-grid .ailhj-post-meta .meta-date,
.ailhj-author-posts-grid .ailhj-post-meta .meta-date {
  margin-left: auto;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1200px) {
  .ailhj-posts-grid,
  .ailhj-search-posts-grid,
  .ailhj-author-posts-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 992px) {
  .ailhj-posts-grid,
  .ailhj-search-posts-grid,
  .ailhj-author-posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .ailhj-posts-grid,
  .ailhj-search-posts-grid,
  .ailhj-author-posts-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .ailhj-posts-grid .ailhj-post-category-wrap,
  .ailhj-search-posts-grid .ailhj-post-category-wrap,
  .ailhj-author-posts-grid .ailhj-post-category-wrap {
    display: none;
  }
}

@media (max-width: 576px) {
  .ailhj-posts-grid,
  .ailhj-search-posts-grid,
  .ailhj-author-posts-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .ailhj-posts-grid .ailhj-post-content,
  .ailhj-search-posts-grid .ailhj-post-content,
  .ailhj-author-posts-grid .ailhj-post-content {
    padding: 10px 0 0 0;
  }
  
  .ailhj-posts-grid .ailhj-post-title,
  .ailhj-search-posts-grid .ailhj-post-title,
  .ailhj-author-posts-grid .ailhj-post-title {
    font-size: 14px;
  }
  
  .ailhj-posts-grid .ailhj-post-meta,
  .ailhj-search-posts-grid .ailhj-post-meta,
  .ailhj-author-posts-grid .ailhj-post-meta {
    font-size: 11px;
    gap: 8px;
  }
}