body {
    font-family: Arial, sans-serif;
    background-color: #f8fafc;
    text-align: center;
    height: 100vh;
    width: 100vw;
    min-width: 600px;
    margin: 0;
}

main {
    width: 80%;
    margin: 0 auto;
    padding: 20px;
}

h2 {
    margin: 0 0 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    border-radius: 12px;
    overflow: hidden;
}

th,
td {
    padding: 12px;
    border: 1px solid #dddddd80;
    text-align: center;
}

th {
    background-color: #3b82f6;
    color: #fff;
    overflow: hidden;
}

tr:first-child th:first-child {
    border-top-left-radius: 12px;
}

tr:first-child th:last-child {
    border-top-right-radius: 12px;
}

tr:last-child td:first-child {
    border-bottom-left-radius: 12px;
}

tr:last-child td:last-child {
    border-bottom-right-radius: 12px;
}

.group-a {
    background-color: #fff;
}

.group-b {
    background-color: #f3f3f3;
}

.toggle-link {
    margin-top: 2rem;
}

.toggle-link:hover {
    cursor: pointer;
}

a {
    all: unset;
}