/* EN / 日本語 toggle (assets/js/i18n.js). Tokens come from main.css. */

/* ---------- Navbar button ------------------------------------------------ */

/* Same look as .palette-open / .theme-toggle: a pill that fits a short label. */
.lang-toggle {
	appearance: none;
	border: 1px solid var(--border);
	background: var(--surface);
	color: var(--heading);
	height: 38px;
	min-width: 38px;
	padding: 0 .7rem;
	margin-right: .5rem;
	border-radius: 999px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: .8rem;
	font-weight: 600;
	line-height: 1;
	white-space: nowrap;
	cursor: pointer;
	transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast) ease,
		border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}

.lang-toggle:hover {
	transform: scale(1.04);
	border-color: var(--border-strong);
}

.lang-toggle:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px var(--accent-ring);
}

.lang-toggle[aria-pressed="true"] {
	background: var(--accent-soft);
	border-color: var(--accent-ring);
}

.lang-toggle[lang="ja"] {
	font-family: 'Inter', "Hiragino Sans", "Yu Gothic UI", "Meiryo", "Noto Sans JP", sans-serif;
}

@media (max-width: 767.98px) {
	.lang-toggle {
		margin: .5rem .5rem .25rem 0;
	}
}

/* Between md and xl the navbar row has no spare width for one more button
   (ten links + search + theme + effects already fill the 720/960px container).
   Make room: a tighter toggle, and the search button drops its "Ctrl K" hint,
   which has already wrapped onto two lines at these widths. */
@media (min-width: 768px) and (max-width: 1199.98px) {
	.lang-toggle {
		padding: 0 .4rem;
		margin-right: .25rem;
		font-size: .74rem;
	}

	#mainNav:has(> .lang-toggle) .palette-open {
		width: 38px;
		padding: 0;
		margin-right: .25rem;
	}

	#mainNav:has(> .lang-toggle) .palette-open kbd {
		display: none !important;
	}
}

/* ---------- Japanese typography ------------------------------------------ */

/* i18n.js marks every element it translated with lang="ja" + data-i18n.
   Latin letters and digits keep the page font; kana and kanji fall through to
   the system Japanese fonts (nothing is downloaded). */
html[lang="ja"] [data-i18n],
.i18n-note {
	font-family: 'Inter', "Hiragino Sans", "Yu Gothic UI", "Meiryo", "Noto Sans JP", sans-serif;
	line-break: strict;
	overflow-wrap: anywhere;
	letter-spacing: 0;
}

html[lang="ja"] p[data-i18n],
html[lang="ja"] li[data-i18n],
html[lang="ja"] div[data-i18n],
html[lang="ja"] span[data-i18n] {
	line-height: 1.85;
}

/* Justified Japanese opens uneven gaps around Latin words and numbers. */
html[lang="ja"] .justify[lang="ja"],
html[lang="ja"] [lang="ja"] .justify {
	text-align: start;
	text-justify: auto;
}

/* "Only some pages are in Japanese" note at the top of About. */
.i18n-note {
	margin: .25rem 0 .75rem;
	font-size: .82rem;
	line-height: 1.6;
	color: var(--text-2);
}

.i18n-note > span {
	display: inline-block;
	padding: .2rem .65rem;
	border: 1px solid var(--border);
	border-radius: 999px;
	background: var(--surface);
}