body {
  font-family: Arial, sans-serif;
  background-color: #222;
  color: #eee;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.container {
  text-align: center;
}

#infos {
  margin-bottom: 10px;
}

.grille {
  display: grid;
  grid-template-columns: repeat(2, 120px);
  gap: 15px;
  margin-top: 20px;
  justify-content: center;
}

.case {
  width: 120px;
  height: 120px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.1s ease;
}

.case:hover {
  transform: scale(1.03);
}

.case0 {
  background-color: #e74c3c;
}
.case1 {
  background-color: #3498db;
}
.case2 {
  background-color: #2ecc71;
}
.case3 {
  background-color: #f1c40f;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  margin-top: 10px;
  cursor: pointer;
}

#message {
  min-height: 24px;
  margin: 10px 0;
}