body {
            font-family: Arial, sans-serif;
            margin: 20px;
        }
        .container {
            max-width: 800px;
            margin: 0 auto;
        }
        h1 {
            text-align: center;
            color: #000;
        }
        label {
            display: block;
            margin: 10px 0 5px;
        }
        input, button {
            padding: 10px;
            margin: 5px 0;
        }
        table {
            margin-top: 20px;
            width: 100%;
            border-collapse: collapse;
        }
        table, th, td {
            border: 1px solid black;
            text-align: center;
            padding: 10px;
        }
        td input {
            width: 100%;
            padding: 5px;
            border: none;
            text-align: center;
        }
body {
    background: linear-gradient(to bottom, #ffcc00, #ff6600); /* Fundo em gradiente amarelo e laranja */
    color: #fff; /* Texto branco */
    font-family: 'Arial', sans-serif;
    text-align: center;
}

main {
    padding: 20px;
}

.calculadora {
    background: rgba(0, 0, 0, 0.7); /* Fundo semi-transparente */
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

h1 {
    color: #ffcc00; /* Título amarelo */
}

table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

table, th, td {
    border: 2px solid #fff; /* Bordas brancas */
}

th {
    background-color: #ff6600; /* Cabeçalho laranja */
}

td {
    background-color: rgba(255, 255, 255, 0.1); /* Células semi-transparentes */
}

button {
    background-color: #ffcc00; /* Botões amarelos */
    color: #000;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
    font-weight: bold;
}

button:hover {
    background-color: #ff6600; /* Efeito de hover */
}