body
{
    font-size: 16px;
    font-family: georgia;
}

#pnlOverlay
{
    position: fixed;
    display: none;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    color: rgb(255, 255, 255);
    text-align: center;
    animation: pulse 1s infinite;
}

#pnlContainer
{
    min-height: 100vh;
    max-width: 400px;
    margin: 0 auto 0 auto;
    text-align: center;
}

#pnlSelection
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    text-align: justify;
}

#pnlError
{
    font-size: 0.8em;
    font-weight: bold;
    color: #FF0000;
}

.txtResult
{
    font-weight: bold;
    color: rgb(100, 100,100);
}

.hourglass
{
    font-size: 5em;
}

@keyframes pulse 
{
  0% 
  {
    color: rgb(255, 255, 255);
  }
  50% 
  {
    color: rgb(100, 100, 100);
  }
}

button
{
    width: 100%;
    height: 2em;
    margin-top: 2em;
    border-radius: 20px;
}