body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
  }
  
  .container {
    text-align: center;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    max-width: 400px;
    margin: 0 auto;
  }
  
  h1 {
    margin-top: 0;
  }
  
  .coin {
    width: 150px;
    height: 150px;
    margin: 20px auto;
    position: relative;
    perspective: 1000px;
  }
  
  .circle {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #ffc107;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 1s ease-in-out;
  }
  
  .side {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    backface-visibility: hidden;
  }
  
  .heads {
    transform: rotateY(0deg);
  }
  
  .tails {
    transform: rotateY(180deg);
  }
  
  .result {
    margin: 10px 0;
  }
  
  .button-container {
    display: flex;
    justify-content: center;
  }
  
  button {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s;
    outline: none;
  }
  
  button:hover {
    background-color: #0056b3;
  }