:root {
    color-scheme: light dark;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

body {
    margin: 0;
    padding: 32px 16px;
    display: grid;
    place-items: start center;
}

main {
    width: min(720px, 100%);
}

h1 {
    margin: 0 0 12px;
    font-size: 22px;
}

.card {
    border: 1px solid rgba(127, 127, 127, .35);
    border-radius: 12px;
    padding: 16px;
}

label {
    display: block;
    font-size: 14px;
    margin: 10px 0 6px;
}

input,
button {
    font: inherit;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(127, 127, 127, .35);
}

.row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: end;
}

.row>div {
    flex: 1 1 220px;
}

button {
    cursor: pointer;
}

button[disabled] {
    opacity: .6;
    cursor: not-allowed;
}

pre {
    white-space: pre-wrap;
    word-break: break-word;
    margin: 12px 0 0;
}

.muted {
    opacity: .75;
    font-size: 13px;
    margin-top: 8px;
}