body {
    font-family: Arial, sans-serif;
    background: #1e1e1e;
    color: white;
    text-align: center;
    margin-top: 60px;
}


h2 {
    margin-bottom: 20px;
}

input {
    display: block;
    width: 250px;
    margin: 10px auto;
    padding: 10px;
    border-radius: 5px;
    border: none;
}


button {
    display: block;
    width: 270px;
    margin: 10px auto;
    padding: 10px;
    border-radius: 5px;
    border: none;
    background: #00c853;
    color: white;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #00b248;
}


#resultado {
    margin-top: 20px;
    font-size: 18px;
}