body {
  font-family: "Arial", sans-serif;
  background-color: #f0f0f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  overflow: hidden; /* Zákaz scrollování na stránce */
}

h1 {
  color: #333;
  margin-bottom: 20px;
}

form {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

input {
  padding: 10px;
  font-size: 16px;
  border: 2px solid #333;
  border-radius: 5px;
  margin-right: 10px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  background-color: #333;
  color: white;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #555;
}

#wheel {
  border: 2px solid #333;
  border-radius: 50%;
  margin-top: 20px;
}

.wheel-container {
  position: relative;
  width: 500px;
  height: 500px;
}

.arrow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(245px) translateY(-50%) rotate(-270deg);
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-top: 40px solid red;
  z-index: 1;
}

#result {
  margin-top: 20px;
  font-size: 24px;
  font-weight: bold;
  color: #333;
}