/* Xera Tech Newspost — shareable graphics hub, extends news.css tokens */

.poster-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 20px;
}
@media (min-width: 640px) { .poster-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; } }
@media (min-width: 980px) { .poster-grid { grid-template-columns: repeat(4, 1fr); } }

.poster-grid-small { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) { .poster-grid-small { grid-template-columns: repeat(4, 1fr); } }

.poster-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--navy);
  box-shadow: 0 4px 14px rgba(10,35,66,0.12);
  transition: transform .15s ease;
}
.poster-card:hover { transform: translateY(-4px); }
.poster-card img { width: 100%; height: 100%; object-fit: cover; display: block; }

.poster-card-overlay {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 14px 12px 12px;
  background: linear-gradient(0deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.35) 60%, transparent 100%);
  color: #fff;
}
.poster-card-overlay h2, .poster-card-overlay h3 {
  font-size: 13px; line-height: 1.35; margin: 6px 0 4px; font-weight: 700;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.poster-card-overlay time { font-size: 11px; color: rgba(255,255,255,0.7); }

/* ── Single poster page ─────────────────────────────────── */
.poster-shell { max-width: 980px; }
.poster-page-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 760px) { .poster-page-grid { grid-template-columns: 380px 1fr; align-items: start; } }

.poster-image-col img {
  width: 100%; height: auto; border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(10,35,66,0.18);
}

.poster-info-col h1 { font-size: clamp(22px, 4vw, 28px); color: var(--navy); line-height: 1.3; margin: 10px 0 12px; }
.poster-caption { font-size: 16px; color: var(--text); margin: 0 0 14px; }
.poster-date { display: block; font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.poster-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }