body {
    font-family: system-ui, Arial, sans-serif;
    margin: 20px;
}

nav a {
    margin-right: 10px;
}

input, button, select {
    margin: 4px;
    padding: 6px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th, td {
    border: 1px solid #ccc;
    padding: 6px;
    text-align: left;
}