body {
  background: linear-gradient(135deg, #1F2937, #111827);
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
}
.code-container {
  background-color: #2d2d2d;
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-x: auto;
}
.code-snippet{
    background-color: #2d2d2d;
    letter-spacing: 2px;
    border-radius: 0.5rem;
    padding: 0.3rem;
    overflow-x: auto;
    border: 1px dotted white;
  }
.table-head {
  background-color: #374151;
}
/* Smooth fade-in for sections */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards;
}
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.matrix-cell {
  width: 3rem;
  height: 3rem;
  background-color: #374151; /* bg-gray-700 */
  border: 1px solid #6b7280; /* border-gray-500 */
  color: white;
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 500;
  box-shadow: 0 0 4px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}
.fade {
  transition: all 0.3s ease-in-out;
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
footer{
    margin-top: 10px;
    background-color: #2d2d2d;;
    justify-content: center;
    text-align: center;
    padding:20px;
}