canvas {
    display: block;
    margin: 20px auto;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0px 0px 30px rgba(0, 0, 0, 0.5);
}

.copy-details-btn {
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-details-btn:hover {
    background-color: #0056b3;
}

.copy-details-btn:focus {
    outline: none;
}

.copy-details-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.copy-feedback {
    display: inline-block;
    margin-left: 10px;
    color: green;
    font-weight: bold;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.copy-feedback.show {
    opacity: 1;
}