body {
    font-family: sans-serif;
    text-align: center;
    padding: 0;
    margin: 0;
    
}
#center{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    padding: 25px;
}
header{
    background-color: #000;
    font-size: 1.4rem;
    color: #fff;    
    font-weight: bold;
    padding: 20px 15px;
    letter-spacing: 1px;
}
#logo{
   
}

.status{
    font-size: 1.2rem;
    line-height: 1.2;
}

#feedback{
    display: inline-block;
    background-color: #254597;
    color: #fff;
    font-size: 1.5rem;
    padding: 20px 35px;
    border-radius: 35px;
    font-weight: bold;
}

.error {
    color: red;
    font-weight: bold;
}

#countdown {
    font-size: 1.2em;
    margin-top: 20px;
    color: #555;
}