.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.demo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 1rem;
  background-color: var(--md-default-bg-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}
.demo-card:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}
.demo-card img,
.demo-card video {
  width: 100%;
  height: auto;
  border-radius: 4px;
  display: block;
}
.demo-preview,
video.demo-preview {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.search-input {
  display: block;
  margin: 0 auto 1.5rem;
  padding: 0.5rem;
  width: min(300px, 80%);
  font-size: 1rem;
}

.demo-desc {
  margin: 0.25rem auto 0;
  font-size: 0.9rem;
  color: #555;
  text-align: center;
  max-width: 90%;
}
.launch {
  margin-top: 0.5rem;
  padding: 0.4rem 0.75rem;
  background-color: var(--md-primary-fg-color, #007bff);
  color: #fff;
  border-radius: 4px;
  font-weight: bold;
  text-align: center;
  border: none;
  cursor: pointer;
}

.demo-card[hidden] { display: none; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 3px solid #135ca8;
  outline-offset: 4px;
}
#result-count, #no-results { text-align: center; }
@media (max-width: 480px) {
  .demo-grid { grid-template-columns: minmax(0, 1fr); }
  body { padding: 1rem !important; }
}
@media (prefers-reduced-motion: reduce) {
  .demo-card { transition: none; }
  .demo-card:hover { transform: none; }
}