* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, sans-serif;
    color: black;
    background-color: white;
}

nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    gap: 0.5rem;
    border-bottom: solid 1px #aaa;
    background-color: #eee;
}

nav a {
    display: inline-block;
    min-width: 9rem;
    padding: 0.5rem;
    border-radius: 0.2rem;
    border: solid 1px #aaa;
    text-align: center;
    text-decoration: none;
    color: #555;
}

nav a[aria-current='page'] {
    color: #000;
    background-color: #d4d4d4;
}

main {
    padding: 1rem;
}

h1 {
    font-weight: bold;
    font-size: 1.5rem;
}

body {
    font-size: 14px;
    margin: 2%;
}

table {
    background-color: #fff;
}

table th,
table td {
    background-color: #fff;
}

table thead {
    position: sticky;
    top: 0;
}

table thead th,
table thead td {
    background-color: orange;
}

table tbody td {
    vertical-align: top;
}

details {
    padding: 10px;
}

details summary {
    cursor: pointer;
}

details dt {
    font-weight: 700;
    margin-left: 10px;
}

details dd {
    margin-left: 0;
    padding-left: 0;
}

.title {
    text-align: center;
}

#count {
    margin-bottom: 15px;
}

.datetime {
    padding: 0 0 30px 0;
    text-align: center;
}