.menu li a {
  font-size: 15px;
}

div.ui-dialog {
  max-width: 800px;
  margin: 0 auto;
}

.error-message {
  color: red !important;
}

.iso-grid-item {
  width: 240px;
  height: fit-content;
  border: 2px solid #333;
  border-radius: 12px;
  margin: 4px;
  padding: 12px;
  background-color: white;
}

.iso-grid {
  width: 100% !important;
}

.nivo-caption {
  text-transform: uppercase;
  font-weight: bold;
  text-align: center;
  color: lightblue;
  letter-spacing: 1px;
}

.game-area {
  width: 90%;
  height: 90vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  margin: auto;
  overflow: hidden;
}

.score-board {
  font-size: 1.5rem;
  color: #333;
}

.button-64 {
  align-items: center;
  background-image: linear-gradient(144deg, #AF40FF, #5B42F3 50%, #00DDEB);
  border: 0;
  border-radius: 8px;
  box-shadow: rgba(151, 65, 252, 0.2) 0 15px 30px -5px;
  box-sizing: border-box;
  color: #FFFFFF;
  display: flex;
  font-family: Phantomsans, sans-serif;
  font-size: 20px;
  justify-content: center;
  line-height: 1em;
  max-width: 100%;
  min-width: 140px;
  padding: 3px;
  text-decoration: none;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  white-space: nowrap;
  cursor: pointer;
}

.button-64:active,
.button-64:hover {
  outline: 0;
}

.button-64 span {
  background-color: rgb(5, 6, 45);
  padding: 16px 24px;
  border-radius: 6px;
  width: 100%;
  height: 100%;
  transition: 300ms;
}

.button-64:hover span {
  background: none;
}

@media (min-width: 768px) {
  .button-64 {
    font-size: 24px;
    min-width: 196px;
  }
}