/* ============================================================
   JINER Blog — /posts 文章归档
   ============================================================ */

/* ---------- Hero ---------- */
/* 渐变与光斑必须整幅铺满：覆盖 style.css 里给标题区加的 960px 约束 */
main .posts-hero {
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}
.posts-hero {
  position: relative;
  text-align: center;
  padding: clamp(3rem, 8vw, 6rem) 1rem 2.5rem;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, transparent 100%);
}
.posts-hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.posts-hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.posts-hero h1 {
  position: relative;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}
.posts-hero .count {
  position: relative;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}
.posts-hero .count strong {
  color: var(--color-accent);
  font-weight: 600;
}
[data-theme="dark"] .posts-hero {
  background: linear-gradient(180deg, rgba(129, 140, 248, 0.04) 0%, transparent 100%);
}

/* ---------- 卡片网格 ---------- */
.posts-grid {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}
.post-card {
  position: relative;
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #8b5cf6);
  opacity: 0;
  transition: opacity 0.35s ease;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.post-card:hover::before { opacity: 1; }
.post-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-accent), #8b5cf6, var(--color-accent));
  background-size: 200% 200%;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.4s ease;
}
.post-card:hover::after { opacity: 0.2; }
.post-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.25);
}
[data-theme="dark"] .post-card:hover {
  box-shadow: 0 20px 48px rgba(129, 140, 248, 0.12);
  border-color: rgba(129, 140, 248, 0.25);
}
.post-card .card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: inline-block;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.post-card:hover .card-icon { transform: scale(1.15) rotate(-6deg); }
.post-card .date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}
.post-card h2 {
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  transition: color 0.25s;
}
.post-card:hover h2 { color: var(--color-accent); }
.post-card .excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card .arrow {
  display: inline-block;
  margin-top: 1rem;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s ease;
}
.post-card:hover .arrow { opacity: 1; transform: translateX(0); }

/* 入场动画（延迟由内联 --d 控制） */
@keyframes card-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.post-card {
  animation: card-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: var(--d, 0s);
}

/* ---------- 空态 ---------- */
.posts-empty, .empty-state {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--color-text-muted);
}
.empty-state p {
  font-size: var(--text-lg);
  margin-bottom: 1rem;
}
.empty-state .empty-link {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: transform var(--transition), background-color .2s ease;
}
.empty-state .empty-link:hover {
  transform: translateY(-1px);
  background: rgba(109, 40, 217, 0.16);
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.25rem;
  padding: 1rem 1rem 4rem;
  flex-wrap: wrap;
}
.pagination a,
.pagination span,
.pagination .pg-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 0.5rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all 0.2s;
  text-decoration: none;
}
.pagination a {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  color: var(--color-text);
}
.pagination a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}
.pagination span[aria-current="page"] {
  background: var(--color-accent);
  color: #fff;
}
.pagination .pg-arrow { color: var(--color-text-muted); }
.pagination .pg-arrow.disabled { opacity: 0.3; pointer-events: none; }
.pagination .pg-ellipsis { color: var(--color-text-muted); letter-spacing: 1px; }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .posts-grid { grid-template-columns: 1fr; gap: 1rem; }
  .post-card { padding: 1.25rem; }
  .pagination a, .pagination span, .pagination .pg-arrow {
    min-width: 32px; height: 32px; font-size: var(--text-xs);
  }
}

@media (prefers-reduced-motion: reduce) {
  .post-card { animation: none; }
}