body:has(#lang-fr:checked) .multilingual > :not(.lang-fr),
body:has(#lang-ja:checked) .multilingual > :not(.lang-ja),
body:has(#lang-en:checked) .multilingual > :not(.lang-en) {
    display: none;
}

body:has(#lang-fr:checked) .card-multilingual:not(.lang-fr),
body:has(#lang-ja:checked) .card-multilingual:not(.lang-ja),
body:has(#lang-en:checked) .card-multilingual:not(.lang-en) {
    display: none;
}

#lang-picker input[name=lang] {
    display: none;
}

#lang-picker input[name="lang"]:checked + label {
    color: var(--blue);
}

#lang-picker label {
    cursor: pointer;
    margin: 2px;
}

#lang-picker {
    padding-right: 1ch;
}