/* Voz Accesible – reproductor de texto a voz */

.vac {
	--vac-bg: #ffffff;
	--vac-fg: #0f172a;
	--vac-muted: #52607a;
	--vac-border: #cbd5e1;
	--vac-track: #dbe3ee;
	--vac-chip: #eef2f7;
	--vac-chip-hover: #e1e8f1;

	box-sizing: border-box;
	display: grid;
	grid-template-columns: auto minmax(0, 1fr);
	gap: 14px 18px;
	align-items: center;
	clear: both;
	width: 100%;
	max-width: 100%;
	margin: 1.25rem 0;
	padding: 18px 20px;
	color: var(--vac-fg);
	background: var(--vac-bg);
	border: 1.5px solid var(--vac-border);
	border-radius: 18px;
	font-family: inherit;
	font-size: 16px;
	line-height: 1.4;
	text-align: left;
}

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

.vac[data-theme="dark"] {
	--vac-bg: #0f1623;
	--vac-fg: #f1f5f9;
	--vac-muted: #a8b6cc;
	--vac-border: #2c3a52;
	--vac-track: #2c3a52;
	--vac-chip: #1a2438;
	--vac-chip-hover: #243250;
}

@media (prefers-color-scheme: dark) {
	.vac[data-theme="auto"] {
		--vac-bg: #0f1623;
		--vac-fg: #f1f5f9;
		--vac-muted: #a8b6cc;
		--vac-border: #2c3a52;
		--vac-track: #2c3a52;
		--vac-chip: #1a2438;
		--vac-chip-hover: #243250;
	}
}

/* Se muestra cuando el JS está listo (el espacio queda reservado para evitar saltos de maquetación) */
.vac:not(.is-ready) {
	visibility: hidden;
	min-height: 140px;
}

.vac.is-unsupported {
	display: block;
	min-height: 0;
}

.vac__unsupported {
	margin: 0;
	color: var(--vac-muted);
}

/* Botón principal */
.vac__play {
	all: unset;
	box-sizing: border-box;
	display: grid;
	place-items: center;
	width: 64px;
	height: 64px;
	border-radius: 50%;
	color: #fff;
	background: var(--vac-accent, #1d4ed8);
	cursor: pointer;
	transition: transform 0.15s ease;
}

.vac__play:hover {
	transform: scale(1.06);
}

.vac__play:active {
	transform: scale(0.97);
}

.vac__icon {
	width: 30px;
	height: 30px;
	fill: currentColor;
}

.vac__icon--pause {
	display: none;
}

.vac[data-state="playing"] .vac__icon--pause {
	display: block;
}

.vac[data-state="playing"] .vac__icon--play {
	display: none;
}

/* Cabecera, progreso, estado */
.vac__main {
	min-width: 0;
}

.vac__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
}

.vac__title {
	font-size: 1.05rem;
	font-weight: 700;
	letter-spacing: 0;
}

.vac__bars {
	display: inline-flex;
	align-items: flex-end;
	gap: 3px;
	height: 20px;
	opacity: 0.35;
}

.vac__bars i {
	display: block;
	width: 4px;
	height: 6px;
	border-radius: 2px;
	background: var(--vac-accent, #1d4ed8);
}

.vac[data-state="playing"] .vac__bars {
	opacity: 1;
}

.vac[data-state="playing"] .vac__bars i {
	animation: vac-eq 1s ease-in-out infinite;
}

.vac__bars i:nth-child(2) { animation-delay: -0.25s; }
.vac__bars i:nth-child(3) { animation-delay: -0.5s; }
.vac__bars i:nth-child(4) { animation-delay: -0.75s; }
.vac__bars i:nth-child(5) { animation-delay: -0.4s; }

@keyframes vac-eq {
	0%, 100% { height: 5px; }
	50% { height: 20px; }
}

.vac__seek {
	-webkit-appearance: none;
	appearance: none;
	display: block;
	width: 100%;
	height: 22px;
	margin: 8px 0 2px;
	padding: 0;
	background: transparent;
	cursor: pointer;
}

.vac__seek::-webkit-slider-runnable-track {
	height: 8px;
	border-radius: 999px;
	background: linear-gradient(to right, var(--vac-accent, #1d4ed8) var(--vac-p, 0%), var(--vac-track) var(--vac-p, 0%));
}

.vac__seek::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	box-sizing: border-box;
	width: 20px;
	height: 20px;
	margin-top: -6px;
	border: 3px solid var(--vac-accent, #1d4ed8);
	border-radius: 50%;
	background: #fff;
}

.vac__seek::-moz-range-track {
	height: 8px;
	border-radius: 999px;
	background: var(--vac-track);
}

.vac__seek::-moz-range-progress {
	height: 8px;
	border-radius: 999px;
	background: var(--vac-accent, #1d4ed8);
}

.vac__seek::-moz-range-thumb {
	box-sizing: border-box;
	width: 20px;
	height: 20px;
	border: 3px solid var(--vac-accent, #1d4ed8);
	border-radius: 50%;
	background: #fff;
}

.vac__foot {
	display: flex;
	justify-content: space-between;
	gap: 10px;
	color: var(--vac-muted);
	font-size: 0.85rem;
}

/* Controles */
.vac__controls {
	grid-column: 1 / -1;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px 10px;
	padding-top: 14px;
	border-top: 1.5px solid var(--vac-border);
}

.vac__btn {
	all: unset;
	box-sizing: border-box;
	display: inline-grid;
	place-items: center;
	width: 44px;
	height: 44px;
	border-radius: 12px;
	color: var(--vac-fg);
	background: var(--vac-chip);
	cursor: pointer;
	transition: background 0.15s ease;
}

.vac__btn:hover {
	background: var(--vac-chip-hover);
}

.vac__btn svg {
	width: 22px;
	height: 22px;
	fill: currentColor;
}

.vac__field {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	margin: 0;
	color: var(--vac-muted);
	font-size: 0.88rem;
}

.vac__field--voice {
	flex: 1 1 220px;
	min-width: 0;
}

.vac__select {
	box-sizing: border-box;
	height: 44px;
	max-width: 100%;
	margin: 0;
	padding: 0 10px;
	border: 1.5px solid var(--vac-border);
	border-radius: 12px;
	color: var(--vac-fg);
	background-color: var(--vac-chip);
	font: inherit;
	font-size: 0.92rem;
	cursor: pointer;
}

.vac__field--voice .vac__select {
	flex: 1;
	min-width: 0;
}

.vac__chip {
	all: unset;
	box-sizing: border-box;
	display: inline-flex;
	align-items: center;
	height: 44px;
	margin-left: auto;
	padding: 0 16px;
	border-radius: 999px;
	color: var(--vac-fg);
	background: var(--vac-chip);
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
	transition: background 0.15s ease;
}

.vac__chip:hover {
	background: var(--vac-chip-hover);
}

.vac__chip[aria-pressed="true"] {
	color: #fff;
	background: var(--vac-accent, #1d4ed8);
}

/* Foco visible */
.vac button:focus-visible,
.vac select:focus-visible,
.vac input:focus-visible {
	outline: 3px solid var(--vac-accent, #1d4ed8);
	outline-offset: 3px;
}

/* Párrafo que se está leyendo */
.vac-reading {
	background: rgba(29, 78, 216, 0.13);
	background: color-mix(in srgb, var(--vac-accent, #1d4ed8) 15%, transparent);
	box-shadow: 0 0 0 0.35em rgba(29, 78, 216, 0.13);
	box-shadow: 0 0 0 0.35em color-mix(in srgb, var(--vac-accent, #1d4ed8) 15%, transparent);
	border-radius: 0.25em;
}

@media (max-width: 560px) {
	.vac {
		gap: 12px 14px;
		padding: 16px;
		border-radius: 16px;
	}

	.vac__play {
		width: 56px;
		height: 56px;
	}

	.vac__chip {
		margin-left: 0;
	}

	.vac__field--voice {
		flex-basis: 100%;
	}
}

@media (prefers-reduced-motion: reduce) {
	.vac *,
	.vac-reading {
		animation: none !important;
		transition: none !important;
	}
}

@media (forced-colors: active) {
	.vac,
	.vac__btn,
	.vac__select,
	.vac__chip,
	.vac__play {
		border: 2px solid CanvasText;
	}

	.vac__chip[aria-pressed="true"] {
		forced-color-adjust: none;
		color: HighlightText;
		background: Highlight;
	}

	.vac-reading {
		outline: 2px solid Highlight;
	}
}