body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f4f4f9;
}
  
.container {
    width: 70%;
    max-width: 600px;
    border: 2px solid #000;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    background-color: #fff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
  
h1 {
    margin-bottom: 20px;
    color: #333;
}
  
.coin-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}
  
.coin {
    width: 150px;
    height: 150px;
    object-fit: cover;
    animation: none;
}
  
@keyframes flip {
    0% { transform: rotateY(0); }
    50% { transform: rotateY(180deg); }
    100% { transform: rotateY(360deg); }
}
  
.buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}
  
button {
    padding: 10px 20px;
    font-size: 18px;
    font-weight: bold;
    border: 2px solid #000;
    border-radius: 8px;
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}
  
button:hover {
    background-color: #0056b3;
    transform: scale(1.1);
}
  
button:active {
    transform: scale(1);
}
  
#result {
    font-size: 24px;
    color: #444;
}