body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #13AD99;
  margin: 0;
  padding: 30px;
  min-height: 100vh;
}

.bandeau-yara{
    display:inline-block;

    background:#00205b;

    color:white;

    padding:12px 28px;

    border-radius:40px;

    font-size:16px;

    font-weight:bold;

    letter-spacing:2px;

    text-transform:uppercase;

    margin-top:10px;

    margin-bottom:30px;
}

.sous-titre{

    color:white;

    font-size:22px;

    font-weight:400;

    margin-bottom:35px;

}

h1{
    color:white;
    font-size:42px;
    font-weight:800;
    line-height:1.2;
    margin-top:0;
    margin-bottom:15px;
}

p {
  color: white;
  font-size: 22px;
  margin-bottom: 35px;
}

#board {
  display: grid;
  grid-template-columns: repeat(2, 200px);
  grid-template-rows: repeat(2, 200px);
  gap: 4px;
  justify-content: center;
  margin: 30px auto;
}

.case {
  width: 200px;
  height: 200px;
  border: 3px dashed white;
  background: rgba(255, 255, 255, 0.2);
}

.case img {
  width: 200px;
  height: 200px;
}

#pieces {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin: 30px;
}

.piece {
  width: 200px;
  height: 200px;
  cursor: grab;
  border: 3px solid white;
}

button {
  padding: 14px 32px;
  font-size: 18px;
  font-weight: bold;
  cursor: pointer;
  background: #ff8228;
  color: white;
  border: none;
  border-radius: 999px;
}

button:hover {
  background: #ff8228;
}

#message {
  font-size: 28px;
  font-weight: bold;
  color: #00205b;
  margin-top: 25px;
  margin-bottom: 20px;
  line-height: 1.5;
}

#formulaire {
  display: none;
  margin-top: 15px;
  padding: 16px 32px;
  background: #ff8228;
  color: white;
  text-decoration: none;
  font-size: 20px;
  font-weight: bold;
  border-radius: 50px;
}

#formulaire:hover {
  background: #ff8228;
}