body {
  background: #222;
  color: #eee;
}

header {
  padding: 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.card {
  position: relative;
  width: 250px;
  height: 350px;
  background: #000;
  border-radius: 10px;
  overflow: hidden;
  color: #000;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

.card .frame {
  position: absolute;
  inset: 0;
  border: 8px solid #000;
  border-radius: 10px;
  pointer-events: none;
}

.card img.art {
  width: 100%;
  height: 60%;
  object-fit: cover;
  display: block;
  background: #333;
}

.card .title {
  font-weight: bold;
  padding: 0.25rem 0.5rem;
  background: rgba(255,255,255,0.8);
}

.card .type-line {
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem;
  background: rgba(255,255,255,0.8);
}

.card .rules {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 30%;
  box-sizing: border-box;
  padding: 0.5rem;
  background: rgba(255,255,255,0.9);
  font-size: 0.8rem;
  overflow: auto;
}

.ai-card {
  outline: 3px solid #ff5555;
}

.ai-notice {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: #ff5555;
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  z-index: 1000;
  opacity: 0.9;
}