/* Scenario demos showcase */
.demo-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1.25rem;
}

.demo-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease), box-shadow 0.3s;
}

.demo-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(15, 40, 55, 0.1);
}

.demo-card-featured {
  grid-row: span 2;
}

.demo-preview {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #0a1218;
  overflow: hidden;
}

.demo-card-featured .demo-preview {
  aspect-ratio: auto;
  flex: 1;
  min-height: 280px;
}

.demo-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}

.demo-card:hover .demo-preview img {
  transform: scale(1.04);
}

.demo-preview-patrol {
  display: grid;
  place-items: center;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(12, 155, 114, 0.25), transparent 50%),
    linear-gradient(160deg, #0c1a22, #071018);
}

.demo-preview-illus {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  width: min(70%, 220px);
}

.demo-preview-illus span {
  border: 1px solid rgba(46, 230, 168, 0.35);
  background: rgba(12, 155, 114, 0.12);
  color: #9fe8c9;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: center;
  padding: 0.85rem 0.4rem;
}

.demo-badge {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line-strong);
  padding: 0.25rem 0.55rem;
}

.demo-preview-patrol .demo-badge {
  background: rgba(7, 16, 24, 0.85);
  color: #2ee6a8;
}

.demo-play {
  position: absolute;
  right: 0.85rem;
  bottom: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #fff;
  background: rgba(12, 155, 114, 0.92);
  padding: 0.35rem 0.7rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s, transform 0.25s;
}

.demo-card:hover .demo-play {
  opacity: 1;
  transform: translateY(0);
}

.demo-body {
  padding: 1.25rem 1.35rem 1.5rem;
}

.demo-scene {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 0.55rem;
}

.demo-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.55rem;
  line-height: 1.3;
}

.demo-card-featured .demo-body h3 {
  font-size: 1.45rem;
}

.demo-body p:last-child {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.scene-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 2.5rem;
}

.scene-item {
  background: var(--bg-panel);
  padding: 1.5rem 1.35rem;
}

.scene-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.scene-item span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }

  .demo-card-featured {
    grid-row: auto;
  }

  .demo-card-featured .demo-preview {
    min-height: 200px;
    aspect-ratio: 16 / 10;
    flex: none;
  }

  .scene-strip {
    grid-template-columns: 1fr;
  }
}