/* Global styling and background */
body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #f093fb, #eec25a);
    font-family: 'Comic Sans MS', cursive, sans-serif;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
  }
  .container {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  }
  h1 {
    margin-bottom: 20px;
    font-size: 2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.4);
  }
  form {
    margin-bottom: 20px;
  }
  label {
    font-size: 1.1rem;
  }
  input[type="number"] {
    padding: 8px;
    font-size: 1rem;
    border: none;
    border-radius: 5px;
    margin: 0 10px;
    width: 70px;
    text-align: center;
  }
  button {
    padding: 8px 15px;
    font-size: 1rem;
    border: none;
    border-radius: 5px;
    background-color: #ff4081;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  button:hover {
    background-color: #e73370;
  }
  /* Grid container styling */
  #gridContainer {
    display: grid;
    gap: 10px;
    max-width: 90vw;
    margin: 0 auto;
  }
  /* Grid cell styling and animations */
  .grid-cell {
    background-color: #f6dda3;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: scale(0);
    animation: pop 0.5s ease forwards, colorShift 5s linear infinite;
  }
  /* Pop in animation */
  @keyframes pop {
    to {
      opacity: 1;
      transform: scale(1);
    }
  }
  /* Continuous color shifting animation */
  @keyframes colorShift {
    0% { background-color: #e8de52; }
    25% { background-color: #e87c52; }
    50% { background-color: #18ffff; }
    75% { background-color: #6ed457; }
    100% { background-color: #e8de52; }
  }
  /* Optional hover bounce effect */
  .grid-cell:hover {
    animation: bounce 0.5s;
  }
  @keyframes bounce {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
  }