/* ============================================================
   Publications Feed — Unified Events + News + Demo Days
   FinBridge Venture Studio
   ============================================================ */

/* ── Filter Tabs ── */
.pub-filter-tabs {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0;
}
.pub-filter-tab {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  border-radius: var(--radius-xs) var(--radius-xs) 0 0;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.pub-filter-tab:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary-light);
}
.pub-filter-tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* ── Publication Grid ── */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}
@media (max-width: 640px) {
  .pub-grid { grid-template-columns: 1fr; }
}

/* ── Publication Card ── */
.pub-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}
.pub-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.pub-card__link {
  display: flex;
  flex-direction: column;
  flex: 1;
  text-decoration: none;
  color: inherit;
}
.pub-card__cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-neutral-100);
}
.pub-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.pub-card:hover .pub-card__cover img { transform: scale(1.04); }
.pub-card__cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.18) 100%);
  pointer-events: none;
}
.pub-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.pub-card__badges {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.pub-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  line-height: var(--leading-snug);
  margin: 0;
}
.pub-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0;
  flex: 1;
}
.pub-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}
.pub-card__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.pub-card__cta { margin-top: var(--space-2); }

/* Type-specific card accents */
.pub-card--news { border-top: 3px solid var(--color-info); }
.pub-card--demo_day { border-top: 3px solid var(--color-primary); }
.pub-card--meetup { border-top: 3px solid var(--color-success); }
.pub-card--webinar,
.pub-card--workshop { border-top: 3px solid var(--color-warning); }

/* ── Publication Badges ── */
.pub-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.pub-badge--primary { background: var(--color-primary-10); color: var(--color-primary); }
.pub-badge--info { background: var(--color-info-bg); color: var(--color-info); }
.pub-badge--success { background: var(--color-success-bg); color: var(--color-success); }
.pub-badge--warning { background: var(--color-warning-bg); color: var(--color-warning); }
.pub-badge--muted { background: var(--color-neutral-100); color: var(--color-text-secondary); }
.pub-badge--live {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  animation: pub-live-pulse 2s ease-in-out infinite;
}
.pub-badge--upcoming { background: var(--color-info-bg); color: var(--color-info); }
.pub-badge__dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
@keyframes pub-live-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

/* ── Publication Detail Content ── */
.pub-detail__content {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
}
.pub-detail__content h1,
.pub-detail__content h2,
.pub-detail__content h3 {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin: var(--space-6) 0 var(--space-3);
}
.pub-detail__content p { margin-bottom: var(--space-4); }
.pub-detail__content a { color: var(--color-primary); text-decoration: underline; }
.pub-detail__content img { max-width: 100%; border-radius: var(--radius); }
.pub-detail__content ul,
.pub-detail__content ol { padding-left: var(--space-6); margin-bottom: var(--space-4); }
.pub-detail__content blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-4);
  color: var(--color-text-secondary);
  font-style: italic;
  margin: var(--space-4) 0;
}
.pub-detail__content code {
  background: var(--color-neutral-100);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.pub-detail__content pre {
  background: var(--color-neutral-100);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

/* ── Empty State ── */
.pub-empty {
  text-align: center;
  padding: var(--space-20) var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.pub-empty__icon { color: var(--color-neutral-300); }
.pub-empty__title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
}
.pub-empty__text { color: var(--color-text-secondary); max-width: 400px; }
.pub-empty__text a { color: var(--color-primary); }