body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
	font-weight: bold;
}

h1 {
    color: #007bff;
    text-align: center;
	font-weight: bold;
}

p:nth-last-child(-n+5) {
    font-weight: bold;
	text-align: center;
}

form {
    width: 80%;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
}

label {
    display: block;
    margin-bottom: 10px;
}

input[type=number] {
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    width: 100%;
    box-sizing: border-box;
}

a {
    color: #007bff;
}

input[type=button] {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

input[type=button]:hover {
    background-color: #0062cc;
}

.resultado {
  text-align: center;
}