body {
  font-family: system-ui, sans-serif;
  background: #0f172a;
  color: white;
  text-align: center;
}

h1 {
  margin: 1rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1rem;
}

.card {
  background: #1e293b;
  border-radius: 12px;
  padding: 0.5rem;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.card.disabled {
  opacity: 0.4;
}

.card.active {
  outline: 3px solid #6366f1;
}

img {
  width: 100%;
  border-radius: 8px;
}

button {
  margin-top: 0.5rem;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
}

button:focus-visible {
  outline: 3px solid #22d3ee;
}

#prompt {
  margin: 1rem;
  min-height: 3rem;
}