body {
  background-color: #121212;
  color: #fff;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.spool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1rem;
  width: 100%;
  max-width: 600px;
  aspect-ratio: 1 / 1;
}

.spool-card {
  width: 100%;
  height: 100%;
  transition: box-shadow 0.3s ease;
  overflow: hidden;
}

.spool-card:hover {
  box-shadow: 0 0 15px 4px rgba(255, 255, 255, 0.3);
}