/* global parameters */
#card {
	--max-column-width: 30em; /* max column width for text (~30 kana / ~50 latin characters) */
	--spoiler-transition: 300ms; /* spoiler hide/unhide transition duration */
	--tag-transition: 300ms; /* tag hover/tap expand transition duration */
	--separator-opacity: 20%; /* opacity of the answer separator */
	--separator-weight: 2px; /* layout-dependent width/height of separator */
	--spoiler-blur-padding: 4px; /* padding for the spoiler blur box */
	--text-block-padding: 1em; /* layout-dependent horizontal/vertical padding for text blocks  */
	--text-block-margin: 0.5em; /* layout-dependent horizontal/vertical margin for text blocks */
	--tag-font-size: 80%; /* font size for card tags */
	--subtile-font-size: 75%; /* font size for subtile style (notes, curly braces in translations) */
	--subtile-opacity: 50%; /* font opacity for subtile style */
	--reading-kana-font-size: var(--native-font-size); /* font size of kana in reading field */
	--native-font-size: 1.0rem; /* font size for generic native (latin) text */
	--foreign-font-size: 1.5rem; /* font size for generic foreign (japanese) text */
	--definition-spacing: 0.75em; /* definition spacing (mobile vertical only) */
	--definition-marker-width: 2em; /* definition marker width (mobile vertical only) */
	--definition-marker-height: 2px; /* definition marker height (mobile vertical only) */
	--definition-marker-opacity: 50%; /* definition marker opacity (mobile vertical only) */
	--indicator-stroke-weight: 1.2pt; /* pitch accent / word type indicator stroke weight */
}
.mobile #card {
	--text-block-padding: 0.5em;
	--native-font-size: 1.10rem;
	--foreign-font-size: 1.75rem;
}

/* default fonts */
body {
	font-family: "Inter", "Hiragino Kaku Gothic ProN", sans-serif;
	font-weight: 400;
}

#card #sentence:has(b) { color: #000b; }
#card #sentence b { color: #000f; }
.night_mode #card #sentence:has(b) { color: #fffb; }
.night_mode #card #sentence b { color: #ffff; }

/* body margin */
body {
	margin: 0;
	width: 100vw;
	height: 100vh;
}
/* remove AnkiDroid margin (causes little overscroll) */
.mobile #content { margin: 0; }

/* vertical center card in body */
body {
	display: flex;
	flex-direction: column;
	justify-content: center;
}

/* default font sizes (desktop) */
#card .foreign { font-size: var(--foreign-font-size); }
#card .native { font-size: var(--native-font-size); }

/* default text alignment and layout */
#card { text-align: center; }
#card > * > span { display: block; }

/* separator defaults */
#separator {
	border: none;
	opacity: var(--separator-opacity);
	margin: 0;
	background-color: currentColor;
}

/* separator size */
#card.horizontal-layout #separator { height: var(--separator-weight); }
#card.vertical-layout #separator { width: var(--separator-weight); }

/* hide answer and separator on card front */
#card.front #back,
#card.front hr,
#card.front ruby rt.hidden {
	display: none !important;
}

/* extra space above complete translated sentence */
#card #back #sentence-translation { margin-top: 2em; }

/* blur spoiler */
.spoiler { cursor: pointer; }
.spoiler .outer {
	margin: 0 auto;
	display: inline-block;
	position: relative;
	border-radius: 8px;
	overflow: hidden;
	padding: var(--spoiler-blur-padding);
}
.spoiler .outer::after {
	content: "";
	position: absolute;
	inset: 0;
}
.spoiler .inner { transition: filter var(--spoiler-transition); }
.spoiler.hidden .inner { filter: blur(0.6rem); }
.spoiler.visible .inner { filter: blur(0rem); }
.spoiler .outer::after { transition: backdrop-filter var(--spoiler-transition); }
.spoiler.hidden .outer::after { backdrop-filter: contrast(70%); }
.spoiler.visible .outer::after { backdrop-filter: contrast(100%); }
/* inline spoilers */
.spoiler.inline {
	overflow: hidden;
	border-radius: 4px;
	display: inline-block;
	vertical-align: text-bottom;
}
.spoiler.inline .outer {
	padding: 0;
	display: inline;
}


/* fill display horizontally or vertically */
#card.horizontal-layout { width: 100vw; }
#card.vertical-layout { height: 100vh; }

/* grid column layout for vertical card layout */
#card.vertical-layout > * { grid-row: 1; }
#card.vertical-layout {
	display: grid;
	grid-auto-columns: 1fr auto auto;
}
#card.vertical-layout #back { flex-direction: column; }
#card.vertical-layout #back,
#card.vertical-layout #front {
	display: flex;
	justify-content: center;
}

/* grid column settings */
#card.vertical-layout #back { grid-column: 1; }
#card.vertical-layout #separator { grid-column: 2; }
#card.vertical-layout #front { grid-column: 3; }

/* default text element spacing */
#card.horizontal-layout > * > span,
#card.vertical-layout > #back > span {
	padding: 0 var(--text-block-padding);
	margin: var(--text-block-margin) auto;
}
#card.vertical-layout #sentence {
	padding: var(--text-block-padding) 0;
	margin: auto var(--text-block-margin);
}

/* vertical japanese text only in sentence */
#card.vertical-layout #sentence { writing-mode: vertical-rl; }

/* max text column width (~30 characters in japanese, ~50 in latin) */
#card.vertical-layout > #front > #sentence { max-height: var(--max-column-width); }
#card.horizontal-layout > * > span,
#card.vertical-layout > #back > span {
	max-width: var(--max-column-width);
	margin-left: auto;
	margin-right: auto;
}

/* display kana reading smaller and below kanji in vertical layout */
#card.vertical-layout #target-word-reading .reading {
	display: block;
	font-size: var(--reading-kana-font-size);
}

/* tag container */
#card #back #tags {
	font-size: var(--tag-font-size);
	display: flex;
	justify-content: center;
	align-items: center;
	flex-wrap: wrap;
	gap: 4px;
	margin: 2em 0.5em 0.5em 0.5em;
	max-width: unset;
	padding: 10px;
	opacity: 60%;
	transition: opacity var(--tag-transition);
}

/* tag style */
#card #back #tags .tag { background-color: hsl(calc(1deg * var(--tag-hue)), 60%, 20%); }
.night_mode #card #back #tags .tag { background-color: hsl(calc(1deg * var(--tag-hue)), 65%, 80%); }
#card #back #tags .tag .inner { color: white; }
.night_mode #card #back #tags .tag .inner { color: black; }
#card #back #tags .tag {
	--tag-hue: 0;
	padding: 4px;
	border-radius: 999px;
	margin: 0;
	transition-property: padding, grid-template-rows, grid-template-columns;
	transition-duration: var(--tag-transition);
	overflow: hidden;
	display: grid;
	grid-template-rows: 0fr;
	grid-template-columns: 0fr;
	justify-content: center;
	align-items: center;
}
#card #back #tags .tag .inner {
	position: relative;
	opacity: 0;
	left: 50%;
	transform: translate(-50%, 0%);
	transition-duration: var(--tag-transition);
	transition-property: opacity, transform;
	white-space: nowrap;
	min-height: 0;
	min-width: 0;
	user-select: none;
	cursor: default;
	margin: 0 auto;
}

/* tag hover/hold expand */
#card #back #tags:active,
#card #back #tags:hover { opacity: 1; }
#card #back #tags:active .tag .inner,
#card #back #tags:hover .tag .inner { opacity: 1; }
#card #back #tags:active .tag,
#card #back #tags:hover .tag {
	grid-template-rows: 1fr;
	grid-template-columns: 1fr;
	padding: 4px 12px;
}

/* display tags vertically on mobile */
.mobile #card.vertical-layout #back #tags { flex-direction: column; }
.mobile #card.vertical-layout #back #tags .tag { max-width: max-content; }

/* make sure to hide empty fields */
.parse.empty { display: none !important; }

/* don't break syllables in the reading field on vertical mobile */
.mobile #card.vertical-layout #back #target-word-reading .reading .syllable { white-space: nowrap; }

/* subtile style */
.subtile {
	font-style: italic;
	opacity: var(--subtile-opacity);
	font-size: var(--subtile-font-size);
	vertical-align: baseline;
}
.subtile .script-japanese { font-style: normal; } /* italic japanese looks weird */

/* word note style */
#card #target-word-reading .kanji { position: relative; }
#card #target-word-reading .note { position: absolute; }
#card #target-word-reading .note {
	left: -0.25em;
	top: 50%;
	transform: translate(-100%, -50%);
}
.mobile #card.vertical-layout #target-word-reading .note {
	top: -0.25em;
	left: 50%;
	transform: translate(-50%, -100%);
}

/* definitions */
#card #target-word-translation .definitions {
	display: inline;
	padding: 0;
}
#card #target-word-translation .definitions .definition,
#card #target-word-translation .definitions .definition-separator {
	list-style: none;
	display: inline;
}

/* mobile definitions style */
#card #target-word-translation .definitions .definition-separator::after { content: ", "; }
.mobile #card.vertical-layout #target-word-translation .definitions .definition-separator { display: none; }
.mobile #card.vertical-layout #target-word-translation .definitions .definition {
	position: relative;
	display: block;
	max-width: max-content;
	margin: var(--definition-spacing) auto;
}
.mobile #card.vertical-layout #target-word-translation .definitions .definition:last-child::before { display: none; }
.mobile #card.vertical-layout #target-word-translation .definitions .definition::before {
	content: "";
	position: absolute;
	bottom: calc(-0.5 * var(--definition-spacing));
	left: 50%;
	right: 0px;
	height: var(--definition-marker-height);
	width: var(--definition-marker-width);
	opacity: var(--definition-marker-opacity);
	border-radius: 999px;
	background-color: currentColor;
	transform: translate(-50%, 50%);
}

/* indicator (pitch accent or word type) */
.indicator {
	position: relative;
	display: inline-block;
	padding: 1px 4px;
	margin: 0 0.25em;
	vertical-align: middle;
	border: var(--indicator-stroke-weight) solid transparent;
}
.indicator::after {
	content: "";
	position: absolute;
	inset: calc(-1 * var(--indicator-stroke-weight));
	border-radius: 4px;
	border: var(--indicator-stroke-weight) solid currentColor;
}
.indicator .script-japanese {
	font-size: 90%;
	vertical-align: middle;
}
.indicator .stamp * { line-height: 0; }
.indicator:has(.stamp) > *:not(.stamp) { vertical-align: middle; }
.indicator:has(.stamp) {
	padding-top: 0;
	padding-bottom: 0;
	padding-left: 0;
}
.indicator .stamp {
	position: relative;
	padding: 2px 4px;
	margin: 1px;
	margin-right: 3px;
	font-weight: bold;
	font-size: 90%;
	vertical-align: top;
	display: inline-block;
}
.indicator .stamp::before {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: 2px;
	z-index: -1;
}

/* theme colors */
.indicator .stamp { color: white; }
.indicator .stamp::before { background-color: black; }
.night_mode #target-word-translation .indicator .stamp::before { background-color: white; opacity: 40%; }

/* grey color in definitions */
#target-word-translation .indicator .stamp::before,
#target-word-translation .indicator > *:not(.stamp),
#target-word-translation .indicator::after { opacity: 50%; }