.wheel-container {
  position: relative;
  text-align: center;
}
#wheelCanvas {
  width: 35%;
  height: auto;
  border-radius: 50%;
}
#spinButton {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  background-color: #007bff;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
}
#spinButton i {
  font-size: 18px;
  font-weight: bold;
  text-transform: uppercase;
}
.pointer {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-top: 40px solid red;
}
#result {
  margin-top: 20px;
  text-align: center;
  width: 35%;
}
#successMessage, #failureMessage { display: block; }