body {
  font-family: sans-serif;
  text-align: center;
  padding: 20px;
  background-color: #f9f9f9;
}

h1 {
  margin-bottom: 30px;
}

.trainer-box {
  width: 320px;
  margin: auto;
  padding: 20px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 0 10px #ccc;
}

.chessboard {
  margin-bottom: 20px;
}

.buttons {
  display: flex;
  justify-content: space-between;
}

button {
  width: 45%;
  padding: 10px;
  font-size: 16px;
  border: none;
  background-color: #4CAF50;
  color: white;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background-color: #45a049;
}