body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    margin-bottom: 20px;
    font-size: 2rem;
    text-align: center;
}

/* Outer wrapper that provides the rounded border */
.table-wrapper {
    width: 100%;
    max-width: 380px;
    background-color: #ccffcc;
    border: 2px solid black;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ccffcc;
    color: black;
}

th, td {
    border: 1px solid black;
    padding: 12px;
    text-align: center;
    font-size: 1.2rem;
}

th {
    background-color: #b3ffb3;
}

/* Mobile scaling */
@media (max-width: 600px) {
    .table-wrapper {
        max-width: 100%;
        padding: 0 0;
    }

    h1 {
        font-size: 7vw;
    }

    th, td {
        font-size: 6vw;
        padding: 4vw;
    }
}