body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #212121;
}

.center-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    background-color: rgba(61, 61, 61, 0.95);

    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    width: 90%;
    max-width: 480px;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.6);
    margin: 0;
}



.button-container button {
    background-color: #ffffff;
    color: #212121;
    border: none;
    padding: 12px 24px;
    margin: 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.button-container button:hover {
    background-color: #212121;
    color: #ffffff;
    border: 2px solid #ffffff;
}