/* ═══════════════════════════════════════
   POSTS LIST — Medium-inspired editorial layout
═══════════════════════════════════════ */

/* ── Hero ── */
.posts-hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.posts-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
}
.posts-hero h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}
.posts-hero p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ── Category chips ── */
.posts-category-strip {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.posts-category-strip::-webkit-scrollbar { display: none; }
.posts-category-chips {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 0;
  min-width: max-content;
}
.category-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  background: var(--surface-2);
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.category-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
}
.category-chip.active {
  border-color: var(--accent);
  color: var(--accent-fg);
  background: var(--accent);
}
.category-chip-count {
  font-size: 0.65rem;
  font-weight: 500;
  opacity: 0.7;
}

/* ── Masonry view (featured card style) ── */
.posts-section { padding: var(--space-section) 0; }

.masonry-grid {
  columns: 3;
  column-gap: 1.5rem;
  padding: var(--space-xl) var(--space-container);
}
.masonry-item {
  break-inside: avoid;
  margin-bottom: 1.25rem;
}

.featured-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.featured-card:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.featured-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: var(--surface-2);
}
.featured-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease, opacity 0.3s ease;
  opacity: 0.88;
}
.featured-card:hover .featured-card-img img {
  transform: scale(1.06);
  opacity: 1;
  will-change: transform;
}
.featured-card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, var(--media-scrim-card) 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.featured-card:hover .featured-card-img-overlay { opacity: 1; }
.featured-card.no-image .featured-card-img {
  background: color-mix(in srgb, var(--accent) 8%, var(--bg));
  aspect-ratio: auto;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.featured-card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.featured-card-category {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.featured-card-title {
  font-size: var(--text-base);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  overflow-wrap: break-word;
  transition: color 0.2s ease;
}
.featured-card:hover .featured-card-title { color: var(--accent); }
.featured-card-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.875rem;
  flex: 1;
}
.featured-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  gap: 0.5rem;
}
.featured-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.featured-card-arrow {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  transition: background 0.2s ease, transform 0.2s ease;
}
.featured-card:hover .featured-card-arrow {
  background: color-mix(in srgb, var(--accent) 25%, transparent);
  transform: translateX(2px);
}

/* ── List view ── */
.article-list {
  display: flex;
  flex-direction: column;
}
.article-card {
  display: grid;
  grid-template-columns: 1fr 280px;
  align-items: center;
  gap: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 2rem 0;
  position: relative;
  transition: background 0.3s ease;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.article-card:first-child { border-top: 1px solid var(--border); }
.article-card:hover {
  background: color-mix(in srgb, var(--accent) 4%, var(--bg));
}
.article-card-content {
  padding-right: 2.5rem;
  padding-left: 1.5rem;
  min-width: 0;
}
.article-card-category {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.6rem;
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: 100px;
  width: fit-content;
}
.article-card-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}
.article-card:hover .article-card-title { color: var(--accent); }
.article-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1rem;
}
.article-card-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.article-card-meta-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.article-card-meta-item svg { opacity: 0.5; }
.article-card-author { font-weight: 600; color: var(--text-secondary); }
.article-card-img {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-2);
  aspect-ratio: 16 / 10;
  margin-right: 1.5rem;
}
.article-card-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease, opacity 0.3s ease;
  opacity: 0.9;
}
.article-card:hover .article-card-img img {
  transform: scale(1.03);
  opacity: 1;
}
.article-card.no-image .article-card-img { display: none; }
.article-card.no-image .article-card-content { padding-right: 0; }
.article-card-arrow {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
}
.article-card:hover .article-card-arrow {
  opacity: 1;
  transform: translateY(-50%) translateX(2px);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}

/* ── Empty state ── */
.posts-empty {
  text-align: center;
  padding: 5rem 0;
  color: var(--text-muted);
}
.posts-empty svg { opacity: 0.2; margin-bottom: 1rem; }
.posts-empty p { font-size: 0.9rem; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .masonry-grid { columns: 2; }
}
@media (max-width: 768px) {
  .masonry-grid { columns: 2; }
  .article-card {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.5rem 0;
  }
  .article-card-content { padding-right: 0; }
  .article-card-img {
    aspect-ratio: 16 / 9;
    order: -1;
  }
  .article-card-title { font-size: 1.1rem; }
  .article-card-excerpt { -webkit-line-clamp: 2; }
  .article-card-arrow { display: none; }
  .list-hero { padding: 3rem 0 2rem; }
}
@media (max-width: 640px) {
  .masonry-grid { columns: 1; }
  .posts-hero { padding: 2.5rem 0 2rem; }
}

/* ── Scroll reveal ── */
.featured-card, .article-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.featured-card.revealed, .article-card.revealed {
  opacity: 1;
  transform: translateY(0);
}
.featured-card:nth-child(2n) { transition-delay: 0.08s; }
.featured-card:nth-child(3n) { transition-delay: 0.16s; }
.article-card:nth-child(2n) { transition-delay: 0.06s; }
.article-card:nth-child(3n) { transition-delay: 0.12s; }