/* ===== Article Card ===== */
.article-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: background-color 200ms, border-color 200ms, box-shadow 200ms;
}

@media (hover: hover) {
  .article-card:hover { background: var(--card-bg-hover); border-color: var(--card-border-hover); box-shadow: var(--shadow-sm); }
}

.article-card-link { display: block; text-decoration: none; color: inherit; }

.article-card-image-wrapper {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.article-card-image { width: 100%; height: 100%; object-fit: cover; }

.article-card-content { padding: 15px; }

.article-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-lead {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--text-tertiary);
}

.article-card-author { font-weight: 500; }
.article-card-date { color: var(--text-tertiary); }
.article-card-stat { color: var(--text-tertiary); }

.article-card-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 15px 15px; }

.article-card-tag {
  font-size: 12px;
  color: var(--text-secondary);
  background-color: var(--bg-tertiary);
  padding: 3px 10px;
  border-radius: 40px;
  text-decoration: none;
  transition: background-color 200ms, color 200ms;
}

@media (hover: hover) {
  .article-card-tag:hover { color: var(--text-primary); background-color: var(--bg-quaternary); }
}

/* ===== Article Grid ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

@media (max-width: 768px) {
  .article-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* ===== Article Feed (vertical scroll) ===== */
.article-feed {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 700px;
  margin: 0 auto;
}

.article-feed .article-card {
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-bottom: none;
}

.article-feed .article-card:last-child {
  border-bottom: 1px solid var(--card-border);
}

.article-feed .article-card-content {
  padding: 16px 0;
}

.article-feed .article-card-title {
  font-size: 20px;
  -webkit-line-clamp: 3;
  margin-bottom: 8px;
}

.article-feed .article-card-lead {
  font-size: 14px;
  -webkit-line-clamp: 3;
  margin-bottom: 12px;
}

.article-feed .article-card-image-wrapper {
  border-radius: 12px;
  margin: 0;
}

.article-feed .article-card-meta {
  font-size: 13px;
  gap: 12px;
  padding-top: 4px;
}

.article-feed .article-card-tags {
  padding: 0 0 16px;
}

.article-feed .article-card-author {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .article-feed .article-card-title {
    font-size: 18px;
  }

  .article-feed .article-card-lead {
    font-size: 13px;
  }

  .article-feed .article-card-content {
    padding: 12px 0;
  }
}

/* ===== Skeleton Card ===== */
.skeleton-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
}