* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding-top: 2rem;
}

.contenedor {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 24px;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    border: 1px solid #1e1e1e;
    padding: 8px;
}

td:first-child {
    width: 33.33%;
}

tr:first-child {
    background-color: #1e1e1e;
    color: white;
}