/* ============================================
   BLOG — List page styles
   ============================================ */

/* ── Hero ── */
.blog-hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-hero-orb {
  position: absolute;
  width: 600px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(124,58,237,0.25) 0%, transparent 70%);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
  pointer-events: none;
}

.blog-hero-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-300);
  margin-bottom: 16px;
}

.blog-hero-title {
  font-size: clamp(2.2rem, 5vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: 16px;
}

.blog-hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.65;
}

/* ── Filter Tabs ── */
.blog-filters {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 0 64px;
}

.filter-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  padding: 8px 20px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.filter-btn:hover {
  border-color: var(--color-brand-400);
  color: var(--color-text-primary);
}

.filter-btn.active {
  background: var(--color-brand-500);
  border-color: var(--color-brand-500);
  color: #fff;
}

/* ── Posts Grid ── */
.posts-section {
  padding-bottom: var(--section-padding-y);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── Post Card ── */
.post-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  border-color: rgba(139,92,246,0.4);
  transform: translateY(-4px);
}

.post-card-img {
  height: 180px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.post-card-img-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.post-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(124,58,237,0.2);
  border: 1px solid rgba(124,58,237,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-300);
}

.post-card-icon svg { width: 28px; height: 28px; }

.post-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  padding: 3px 10px;
  margin-bottom: 12px;
  width: fit-content;
}

.post-tag--case-study {
  background: rgba(124,58,237,0.15);
  color: var(--color-brand-300);
  border: 1px solid rgba(124,58,237,0.25);
}

.post-tag--blog {
  background: rgba(16,185,129,0.12);
  color: #34d399;
  border: 1px solid rgba(16,185,129,0.2);
}

.post-card-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  line-height: 1.35;
  margin-bottom: 10px;
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
}

.post-card-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.post-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-brand-300);
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
  margin-top: auto;
}

.post-card-link:hover {
  color: var(--color-brand-400);
  gap: 10px;
}

/* ── KPI preview on case study cards ── */
.post-card-kpis {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.post-card-kpi {
  text-align: center;
  flex: 1;
}

.post-card-kpi-value {
  display: block;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-brand-300);
  font-family: var(--font-heading);
  line-height: 1;
}

.post-card-kpi-label {
  display: block;
  font-size: 0.65rem;
  color: var(--color-text-muted);
  margin-top: 2px;
  line-height: 1.3;
}

/* ── Empty state ── */
.posts-empty {
  text-align: center;
  padding: 80px 0;
  color: var(--color-text-muted);
  grid-column: 1 / -1;
}

.posts-empty svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  opacity: 0.4;
}

/* ── Load more ── */
.load-more-wrap {
  text-align: center;
  margin-top: 48px;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .blog-hero { padding: 120px 0 60px; }
  .posts-grid { grid-template-columns: 1fr; }
  .blog-filters { padding-bottom: 40px; }
}