/**
 * TTS Reader - Accessibility
 * WCAG 2.1 A/AA compliance
 * Support pour lecteurs d'écran, mode contraste élevé, etc.
 */

/* sr-only pour lecteurs d'écran */
.tts-status.sr-only,
.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}

/* Mode contraste élevé (Windows High Contrast) */
@media (prefers-contrast: more) {
	.tts-widget {
		border: 2px solid currentColor;
	}

	.tts-play-button {
		border: 2px solid #FFFFFF;
		font-weight: 700;
	}

	.tts-control-panel {
		border: 2px solid currentColor;
	}

	.tts-progress-bar {
		border: 1px solid currentColor;
	}
}

/* Mode réduit motion */
@media (prefers-reduced-motion: reduce) {
	.tts-widget,
	.tts-widget * {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}

/* Focus management */
.tts-control-button {
	position: relative;
}

.tts-control-button:focus {
	outline: 2px solid #4CAF50;
	outline-offset: 2px;
}

/* Indicators pour État aria-pressed (screen-reader only) */
.tts-play-button[aria-pressed="true"]::after {
	content: " (En-cours)";
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
}

/* ARIA label support */
[role="button"] {
	cursor: pointer;
	user-select: none;
	-webkit-user-select: none;
}

/* Option pour zoom texte */
@media (min-width: 1920px) {
	.tts-widget {
		font-size: 16px;
	}
}

/* High contrast pour sliders */
@media (prefers-contrast: more) {
	.tts-widget input[type="range"]::-webkit-slider-thumb {
		border: 2px solid #000000;
	}

	.tts-widget input[type="range"]::-moz-range-thumb {
		border: 2px solid #000000;
	}
}

/* Keyboard navigation visible focus */
.tts-control-button[tabindex="0"]:focus-visible {
	outline: 3px solid #4CAF50;
	outline-offset: 2px;
	box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.25);
}

/* Transition accessible pour message status */
.tts-status[role="status"] {
	transition: none;
}

/* Print styles */
@media print {
	.tts-widget {
		display: none;
	}
}