body {
    background: linear-gradient(135deg, #8400ff, #8400ff); 
    font-family: Arial, sans-serif;
    height: 100vh;
    margin: 0;
}


body {
    background: linear-gradient(135deg, #8400ff, #8400ff); 
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;  
    color: #333;
}

.contenedor {
    text-align: center;
}

h1 {
    font-size: 2em;
    color: rgb(0, 0, 0);
    margin-bottom: 20px;
}


.calculadora {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    width: 260px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}


.calculadora button {
    font-size: 1.5em;
    padding: 20px;
    background-color: #f0f0f0;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.calculadora button:hover {
    background-color: #ddd;
}