html{
    font-family: 'Arial', sans-serif;
    background: linear-gradient(to right, #9c9c9c, #111111);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

body{
    width: 50%;
    max-width: 800px;
    min-width: 480px;
    margin: 0 auto;
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shodow: 0 4-x 8px #f70000 (0,0,0.2);
}

h1{
    text-align: center;
    font-size: 2.5em;
    color: #775151;
    margin-bottom: 20px;
}

.formulario{
    display: flex;
    flex-direction: column;
    align-items: center;
}

.formulario input[type="number"]{
    width: 200px;
    padding: 10px;
    margin-bottom:10px;
    border-radius: 5px;
    border: 1px solid #ffb0b0;
    font-size: 1.1em;
}

.formulario input[type="submit"]{
    padding: 10px 20px;
    background-color: #678a3c;
    color: #e6c153;
    border: none;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: backgrond-color;
}


.formulario input[type+"submit"]:hover{
    background-color:#218838;
}

paragrafosResultados p {
    font-size:1.2em;
    text-align:center;
    margin:10px 0;
}

.ultimoResultado{
    color:white;
    padding:3px;
    border-redius:5px;
    font-size:1.3em;
    text-align:center;
}

.ultimoResultado.errado{
    background-color:#dc3545;
    
.ultimoResultado.correto{
    background-color:#28a745;
}
 
    .botaoReiniciar{
    display:block;
    margin:20px auto;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1.2em;
    cursor: pointer;
    transition: backgraund-color 0.3s ease;
}
    
.botaoReiniciar:hover {
    background-color: #0056b3;
}