/* Sprachtrainer – Frontend. Farben passen sich über Theme-Presets bzw. halbtransparente Töne an helle und dunkle Themes an. */

.sprachtrainer {
	--st-accent: var(--wp--preset--color--contrast, #1d4ed8);
	--st-bg: var(--wp--preset--color--base, #fff);
	--st-border: rgba(127, 127, 127, 0.28);
	--st-subtle: rgba(127, 127, 127, 0.08);
	--st-radius: 10px;
	--st-gap: 3.5rem;
	--st-sticky-top: var(--wp-admin--admin-bar--height, 0px);

	line-height: 1.65;
	overflow-anchor: none;
	scroll-margin-top: calc(var(--st-sticky-top) + 1rem);
}

.sprachtrainer *,
.sprachtrainer *::before,
.sprachtrainer *::after {
	box-sizing: border-box;
}

.sprachtrainer .st-heading {
	margin: 0 0 1.25rem;
}

.sprachtrainer .st-message {
	opacity: 0.75;
}

.sprachtrainer .st-back {
	display: inline-block;
	margin-bottom: 1rem;
	font-size: 0.9em;
	text-decoration: none;
}

.sprachtrainer .st-back:hover,
.sprachtrainer .st-back:focus-visible {
	text-decoration: underline;
}

/* Karten (Niveaus und Texte) */

.sprachtrainer .st-card {
	display: flex;
	flex-direction: column;
	gap: 0.2rem;
	padding: 1rem 1.15rem;
	border: 1px solid var(--st-border);
	border-radius: var(--st-radius);
	color: inherit;
	text-decoration: none;
	transition: border-color 0.15s, background-color 0.15s, transform 0.15s;
}

.sprachtrainer a.st-card:hover,
.sprachtrainer a.st-card:focus-visible {
	border-color: var(--st-accent);
	background: var(--st-subtle);
	transform: translateY(-1px);
}

.sprachtrainer .st-levels {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
	gap: 0.75rem;
}

.sprachtrainer .st-level-code {
	font-size: 1.75em;
	font-weight: 700;
	line-height: 1.1;
}

.sprachtrainer .st-level-label {
	font-size: 0.85em;
	line-height: 1.35;
}

.sprachtrainer .st-level-count {
	margin-top: auto;
	padding-top: 0.5rem;
	font-size: 0.8em;
	opacity: 0.65;
}

.sprachtrainer .st-level.is-empty {
	opacity: 0.45;
	cursor: default;
}

.sprachtrainer .st-texts {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
	gap: 0.75rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.sprachtrainer .st-texts li {
	margin: 0;
}

.sprachtrainer .st-texts .st-card {
	height: 100%;
}

.sprachtrainer .st-text-title {
	font-weight: 600;
	font-size: 1.1em;
}

.sprachtrainer .st-text-subtitle {
	font-style: italic;
	opacity: 0.75;
}

.sprachtrainer .st-text-meta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.5rem;
	margin-top: auto;
	padding-top: 0.5rem;
	font-size: 0.8em;
	opacity: 0.75;
}

.sprachtrainer .st-text-flags {
	display: inline-flex;
	gap: 4px;
}

.sprachtrainer .st-text-flags .st-flag-img {
	width: 18px;
	height: 12px;
}

/* Lesefortschritt */

.sprachtrainer .st-continue {
	margin-bottom: 1.75rem;
	border-color: var(--st-accent);
}

.sprachtrainer .st-continue-label {
	font-size: 0.75em;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	opacity: 0.7;
}

.sprachtrainer .st-text {
	position: relative;
}

.sprachtrainer .st-read-badge {
	position: absolute;
	top: 0.6rem;
	right: 0.75rem;
	font-size: 0.75em;
	font-weight: 600;
	opacity: 0.7;
}

.sprachtrainer .st-text.is-read .st-text-title {
	padding-right: 5rem;
}

.sprachtrainer .st-reset {
	margin-top: 2rem;
	padding: 0;
	border: 0;
	background: none;
	color: inherit;
	font: inherit;
	font-size: 0.8em;
	text-decoration: underline;
	cursor: pointer;
	opacity: 0.55;
}

.sprachtrainer .st-reset:hover,
.sprachtrainer .st-reset:focus-visible {
	opacity: 0.9;
}

/* Beim Weiterlesen unter der mitlaufenden Sprachleiste landen */
.sprachtrainer .st-row {
	scroll-margin-top: calc(var(--st-sticky-top) + 5rem);
}

/* Niveau ohne Texte im gewählten Sprachpaar */
.sprachtrainer .st-level.is-muted {
	opacity: 0.6;
}

/* Texte, die nicht in beiden gewählten Sprachen vorliegen */
.sprachtrainer .st-others {
	margin-top: 1.75rem;
}

.sprachtrainer .st-others summary {
	margin-bottom: 0.75rem;
	cursor: pointer;
	opacity: 0.75;
}

.sprachtrainer .st-others .st-card {
	opacity: 0.75;
}

/* Leseansicht: jede Zeile enthält denselben Absatz in zwei Sprachen – so stehen die Absätze immer auf gleicher Höhe. */

.sprachtrainer .st-reader-head,
.sprachtrainer .st-row {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	column-gap: var(--st-gap);
	padding-inline: 0.75rem;
}

.sprachtrainer .st-reader-head {
	position: sticky;
	top: var(--st-sticky-top);
	z-index: 5;
	align-items: center;
	padding-block: 0.75rem;
	border-bottom: 1px solid var(--st-border);
	background: var(--st-bg);
}

.sprachtrainer .st-row {
	padding-block: 0.9rem;
	border-radius: 6px;
	/* Trennlinie zwischen den Spalten */
	background-image: linear-gradient(var(--st-border), var(--st-border));
	background-size: 1px 100%;
	background-position: center;
	background-repeat: no-repeat;
}

.sprachtrainer .st-row-title {
	padding-block: 1.25rem 0.5rem;
}

.sprachtrainer .st-cell {
	margin: 0;
	white-space: pre-line;
	overflow-wrap: break-word;
	hyphens: auto;
}

.sprachtrainer .st-title {
	font-size: 1.4em;
	line-height: 1.3;
}

.sprachtrainer .st-cell.is-missing {
	font-style: italic;
	opacity: 0.5;
}

/* Lernmodus: rechte Spalte verschwommen, Klick deckt einen Absatz auf */

.sprachtrainer .st-cell.is-concealable {
	position: relative;
	border-radius: 4px;
	cursor: pointer;
}

.sprachtrainer .st-cell.is-concealable .st-cell-text {
	transition: filter 0.25s;
}

.sprachtrainer .st-cell.is-blurred .st-cell-text {
	filter: blur(6px);
	user-select: none;
}

/* Auge-Icon mittig über dem verschwommenen Absatz */
.sprachtrainer .st-reveal-icon {
	display: none;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 2.4rem;
	height: 2.4rem;
	align-items: center;
	justify-content: center;
	border: 1px solid var(--st-border);
	border-radius: 50%;
	background: var(--st-bg);
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
	opacity: 0.85;
	pointer-events: none;
	transition: opacity 0.15s, transform 0.15s;
}

.sprachtrainer .st-cell.is-blurred .st-reveal-icon {
	display: inline-flex;
}

.sprachtrainer .st-cell.is-blurred:hover .st-reveal-icon {
	opacity: 1;
	transform: translate(-50%, -50%) scale(1.08);
}

/* Theme-Fokusrahmen (z. B. Twenty Twenty-Five) beim Klicken ausblenden – nur bei Tastaturbedienung zeigen. */
.sprachtrainer :focus:not(:focus-visible) {
	outline: none;
}

.sprachtrainer .st-cell.is-concealable:focus-visible {
	outline: 2px solid var(--st-accent);
	outline-offset: 4px;
}

.sprachtrainer .st-blur-toggle {
	display: inline-flex;
	flex: none;
	align-items: center;
	justify-content: center;
	width: 2.1rem;
	height: 2.1rem;
	margin-left: auto;
	padding: 0;
	border: 1px solid var(--st-border);
	border-radius: 50%;
	background: none;
	color: inherit;
	cursor: pointer;
	opacity: 0.6;
	transition: opacity 0.15s, border-color 0.15s;
}

.sprachtrainer .st-blur-toggle:hover,
.sprachtrainer .st-blur-toggle:focus-visible,
.sprachtrainer .st-blur-toggle.is-active {
	opacity: 1;
	border-color: var(--st-accent);
}

@media (prefers-reduced-motion: reduce) {
	.sprachtrainer .st-cell.is-concealable .st-cell-text,
	.sprachtrainer .st-reveal-icon {
		transition: none;
	}
}

/* Sprachwahl (Dropdown) */

.sprachtrainer .st-flag-img {
	display: block;
	flex: none;
	width: 24px;
	height: 16px;
	object-fit: cover;
	border-radius: 2px;
	box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.sprachtrainer .st-picker {
	position: relative;
	min-width: 0;
}

.sprachtrainer .st-picker-button {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	max-width: 100%;
	padding: 0.35rem 0.6rem 0.35rem 0.45rem;
	border: 1px solid var(--st-border);
	border-radius: 8px;
	background: var(--st-bg);
	color: inherit;
	font: inherit;
	font-size: 0.9em;
	font-weight: 600;
	line-height: 1.2;
	cursor: pointer;
}

.sprachtrainer .st-picker-button:hover,
.sprachtrainer .st-picker-button:focus-visible,
.sprachtrainer .st-picker-button[aria-expanded="true"] {
	border-color: var(--st-accent);
}

.sprachtrainer .st-picker-name {
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
}

.sprachtrainer .st-picker-chevron {
	font-size: 0.8em;
	opacity: 0.6;
}

.sprachtrainer .st-picker-menu {
	position: absolute;
	top: calc(100% + 4px);
	left: 0;
	z-index: 20;
	min-width: 13rem;
	padding: 0.3rem;
	border: 1px solid var(--st-border);
	border-radius: 8px;
	background: var(--st-bg);
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.sprachtrainer .st-picker-menu[hidden] {
	display: none;
}

.sprachtrainer .st-picker-end .st-picker-menu {
	right: 0;
	left: auto;
}

.sprachtrainer .st-picker-option {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	width: 100%;
	padding: 0.45rem 0.6rem;
	border: 0;
	border-radius: 6px;
	background: none;
	color: inherit;
	font: inherit;
	font-size: 0.9em;
	text-align: left;
	cursor: pointer;
}

.sprachtrainer .st-picker-option:hover:not(:disabled),
.sprachtrainer .st-picker-option:focus-visible {
	background: var(--st-subtle);
}

.sprachtrainer .st-picker-option[aria-checked="true"] {
	font-weight: 600;
}

.sprachtrainer .st-picker-label {
	flex: 1;
}

.sprachtrainer .st-picker-check {
	visibility: hidden;
}

.sprachtrainer .st-picker-option[aria-checked="true"] .st-picker-check {
	visibility: visible;
}

.sprachtrainer .st-picker-note {
	display: none;
	font-size: 0.8em;
	font-style: italic;
}

/* Nicht verfügbare Sprache: graue Flagge */
.sprachtrainer .st-picker-option.is-unavailable {
	cursor: not-allowed;
	opacity: 0.5;
}

.sprachtrainer .st-picker-option.is-unavailable .st-picker-note {
	display: inline;
}

.sprachtrainer .is-unavailable .st-flag-img {
	filter: grayscale(1);
	opacity: 0.6;
}

.sprachtrainer .st-swap {
	flex: none;
	width: 2.1rem;
	height: 2.1rem;
	padding: 0;
	border: 1px solid var(--st-border);
	border-radius: 50%;
	background: var(--st-bg);
	color: inherit;
	font-size: 1.05rem;
	line-height: 1;
	cursor: pointer;
}

.sprachtrainer .st-swap:hover,
.sprachtrainer .st-swap:focus-visible {
	border-color: var(--st-accent);
}

/* Sprachleiste über Niveau- und Textauswahl */

.sprachtrainer .st-langbar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.6rem;
	margin-bottom: 1.5rem;
}

/* Kopfzeile der Leseansicht */

.sprachtrainer .st-head-cell {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	min-width: 0;
}

.sprachtrainer .st-reader-head .st-swap {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}

/* Vorlesen */

.sprachtrainer .st-cell.has-speak {
	position: relative;
	padding-right: 2rem;
}

.sprachtrainer .st-speak,
.sprachtrainer .st-play-all {
	display: inline-flex;
	flex: none;
	align-items: center;
	justify-content: center;
	padding: 0;
	color: inherit;
	cursor: pointer;
	transition: opacity 0.15s, border-color 0.15s, color 0.15s;
}

.sprachtrainer .st-speak {
	position: absolute;
	top: 0.1rem;
	right: 0;
	width: 1.75rem;
	height: 1.75rem;
	border: 0;
	border-radius: 50%;
	background: none;
	opacity: 0.35;
}

.sprachtrainer .st-speak svg {
	width: 16px;
	height: 16px;
}

.sprachtrainer .st-cell:hover .st-speak,
.sprachtrainer .st-speak:focus-visible {
	opacity: 0.8;
}

.sprachtrainer .st-play-all {
	width: 2.1rem;
	height: 2.1rem;
	border: 1px solid var(--st-border);
	border-radius: 50%;
	background: none;
	opacity: 0.7;
}

.sprachtrainer .st-play-all svg {
	width: 14px;
	height: 14px;
}

.sprachtrainer .st-play-all:hover,
.sprachtrainer .st-play-all:focus-visible {
	opacity: 1;
	border-color: var(--st-accent);
}

.sprachtrainer .st-speak.is-active,
.sprachtrainer .st-play-all.is-active {
	opacity: 1;
	border-color: var(--st-accent);
	color: var(--st-accent);
}

.sprachtrainer .st-speak:disabled,
.sprachtrainer .st-play-all:disabled {
	opacity: 0.15;
	cursor: not-allowed;
}

/* Gerade vorgelesener Absatz: Balken am linken Rand */
.sprachtrainer .st-cell.is-speaking {
	position: relative;
}

.sprachtrainer .st-cell.is-speaking::before {
	content: "";
	position: absolute;
	top: 0.2em;
	bottom: 0.2em;
	left: -0.5rem;
	width: 3px;
	border-radius: 2px;
	background: var(--st-accent);
}

/* Japanisch: strengere Zeilenumbruchregeln, etwas mehr Zeilenabstand */

.sprachtrainer .st-cell:lang(ja) {
	line-break: strict;
	line-height: 1.8;
}

/* Schmale Bildschirme: zwei Spalten bleiben, aber kompakter */

@media (max-width: 640px) {
	.sprachtrainer {
		--st-gap: 1.75rem;
		font-size: 0.88em;
	}

	.sprachtrainer .st-reader-head,
	.sprachtrainer .st-row {
		padding-inline: 0.25rem;
	}

	/* In der Kopfzeile nur Flagge + Pfeil, der Name steht im Menü */
	.sprachtrainer .st-reader-head .st-picker-name {
		display: none;
	}

	.sprachtrainer .st-title {
		font-size: 1.15em;
	}
}