/**
 * CYH Quiz (Lite) - Frontend Styles
 *
 * All styles namespaced under .cyh-quiz-lite
 * RTL-friendly using logical properties
 * iPhone safe-area-inset support
 *
 * @package CYH_Quiz_Lite
 * @version 1.1.2
 */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

.cyh-quiz-lite {
	--cyh-ql-transition-duration: 0.3s;
	--cyh-ql-transition-easing: ease-out;
	--cyh-ql-focus-outline-width: 2px;
	--cyh-ql-focus-outline-offset: 2px;
	--cyh-ql-focus-outline-color: currentColor;
}

/* ==========================================================================
   Container
   ========================================================================== */

.cyh-quiz-lite {
	position: relative;
	box-sizing: border-box;
	width: 100%;
	/* iPhone safe area support */
	padding-inline-start: env(safe-area-inset-left, 0);
	padding-inline-end: env(safe-area-inset-right, 0);
}

.cyh-quiz-lite *,
.cyh-quiz-lite *::before,
.cyh-quiz-lite *::after {
	box-sizing: inherit;
}

/* ==========================================================================
   Loading State
   ========================================================================== */

.cyh-quiz-lite__loading {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 200px;
	padding: 2rem;
}

.cyh-quiz-lite__loading-text {
	font-size: 1rem;
	opacity: 0.7;
}

/* Hide loading when quiz is active */
.cyh-quiz-lite--active .cyh-quiz-lite__loading {
	display: none;
}

/* ==========================================================================
   Editor Mode
   ========================================================================== */

.cyh-quiz-lite--editor {
	pointer-events: none;
}

.cyh-quiz-lite__editor-notice {
	background-color: #f0f0f0;
	border: 1px dashed #999;
	border-radius: 4px;
	padding: 0.5rem 1rem;
	margin-block-end: 1rem;
	font-size: 0.75rem;
	color: #666;
	text-align: center;
}

/* ==========================================================================
   Progress Bar
   ========================================================================== */

.cyh-quiz-lite__progress {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.1rem;
	margin-block-end: 1.5rem;
}

.cyh-quiz-lite__progress-icons {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
	gap: 2px;
}

.cyh-quiz-lite__progress-icon {
	display: inline-block;
	width: 10px;
	height: 40px;
	background-color: #ccc;
	/* CSS mask for SVG recoloring */
	-webkit-mask-repeat: no-repeat;
	mask-repeat: no-repeat;
	-webkit-mask-position: center;
	mask-position: center;
	-webkit-mask-size: contain;
	mask-size: contain;
	transition: background-color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            transform var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing);
}

.cyh-quiz-lite__progress-icon--active {
	background-color: #007bff;
	transform: scale(1.1);
}

.cyh-quiz-lite__progress-icon--completed {
	background-color: #007bff;
}

/* Progress label - hidden visually, accessible to screen readers.
   The progress bar has aria-label for accessibility. */
.cyh-quiz-lite__progress-label {
	/* Visually hidden but accessible */
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* ==========================================================================
   Question
   ========================================================================== */

.cyh-quiz-lite__question {
	margin-block-end: 1.5rem;
}

.cyh-quiz-lite__question-text {
	margin: 0;
	font-size: 1.25rem;
	font-weight: 600;
	line-height: 1.4;
	text-align: center;
}

/* Screen Reader Only - for announcements */
.cyh-quiz-lite__sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* ==========================================================================
   Answers
   ========================================================================== */

.cyh-quiz-lite__answers {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.cyh-quiz-lite__answer {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	width: 100%;
	padding: 1rem;
	border: 2px solid #ddd;
	border-radius: 8px;
	background-color: #fff;
	color: inherit;
	font-family: inherit;
	font-size: 1rem;
	line-height: 1.4;
	text-align: start;
	cursor: pointer;
	transition: background-color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            border-color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            transform var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            box-shadow var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing);
}

.cyh-quiz-lite__answer:hover,
.cyh-quiz-lite__answer:focus {
	border-color: #007bff;
	background-color: #f8f9fa;
	outline: none;
}

.cyh-quiz-lite__answer:focus-visible {
	outline: var(--cyh-ql-focus-outline-width) solid var(--cyh-ql-focus-outline-color);
	outline-offset: var(--cyh-ql-focus-outline-offset);
}

.cyh-quiz-lite__answer:active {
	transform: scale(0.98);
}

.cyh-quiz-lite__answer--selected {
	border-color: #007bff;
	background-color: #e7f1ff;
}

.cyh-quiz-lite__answer-icon {
	flex-shrink: 0;
	width: 40px;
	height: 40px;
	object-fit: contain;
}

.cyh-quiz-lite__answer-text {
	flex: 1;
}

/* ==========================================================================
   Error Message (CTA missing URL)
   ========================================================================== */

.cyh-quiz-lite__error {
	margin-block-start: 0.75rem;
	padding: 0.75rem 1rem;
	border-radius: 6px;
	background-color: #fee2e2;
	border: 1px solid #fecaca;
	color: #dc2626;
	font-size: 0.875rem;
	text-align: center;
}

/* ==========================================================================
   Navigation (Back Button)
   ========================================================================== */

.cyh-quiz-lite__nav {
	display: flex;
	justify-content: center;
	margin-block-start: 1.5rem;
}

.cyh-quiz-lite__back-btn {
	padding: 0.75rem 1.5rem;
	border: 1px solid #ddd;
	border-radius: 6px;
	background-color: transparent;
	color: inherit;
	font-family: inherit;
	font-size: 0.875rem;
	cursor: pointer;
	transition: background-color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            border-color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            color var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing),
	            opacity var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing);
}

.cyh-quiz-lite__back-btn:hover,
.cyh-quiz-lite__back-btn:focus {
	background-color: #f8f9fa;
	border-color: #999;
	outline: none;
}

.cyh-quiz-lite__back-btn:focus-visible {
	outline: var(--cyh-ql-focus-outline-width) solid var(--cyh-ql-focus-outline-color);
	outline-offset: var(--cyh-ql-focus-outline-offset);
}

.cyh-quiz-lite__back-btn:disabled,
.cyh-quiz-lite__back-btn[aria-disabled="true"] {
	opacity: 0.5;
	cursor: not-allowed;
}

.cyh-quiz-lite__back-btn:disabled:hover,
.cyh-quiz-lite__back-btn[aria-disabled="true"]:hover {
	background-color: transparent;
	border-color: #ddd;
}

/* Hidden state for back button on first question */
.cyh-quiz-lite__back-btn--hidden {
	visibility: hidden;
}

/* ==========================================================================
   Complete State
   ========================================================================== */

.cyh-quiz-lite__complete {
	text-align: center;
	padding: 2rem;
}

.cyh-quiz-lite__complete-inner {
	max-width: 400px;
	margin: 0 auto;
}

.cyh-quiz-lite__complete-title {
	margin: 0 0 0.5rem;
	font-size: 1.5rem;
	font-weight: 600;
}

.cyh-quiz-lite__complete-text {
	margin: 0;
	opacity: 0.8;
}

/* ==========================================================================
   Transitions / Animations
   ========================================================================== */

/* Question slide transition */
.cyh-quiz-lite__question-container {
	position: relative;
	overflow: hidden;
}

.cyh-quiz-lite__slide {
	animation: cyh-ql-slide-in var(--cyh-ql-transition-duration) var(--cyh-ql-transition-easing);
}

@keyframes cyh-ql-slide-in {
	from {
		opacity: 0;
		transform: translateX(20px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

/* RTL slide direction */
[dir="rtl"] .cyh-quiz-lite__slide {
	animation-name: cyh-ql-slide-in-rtl;
}

@keyframes cyh-ql-slide-in-rtl {
	from {
		opacity: 0;
		transform: translateX(-20px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

/* Slide out for going back */
.cyh-quiz-lite__slide--back {
	animation-name: cyh-ql-slide-in-back;
}

@keyframes cyh-ql-slide-in-back {
	from {
		opacity: 0;
		transform: translateX(-20px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

[dir="rtl"] .cyh-quiz-lite__slide--back {
	animation-name: cyh-ql-slide-in-back-rtl;
}

@keyframes cyh-ql-slide-in-back-rtl {
	from {
		opacity: 0;
		transform: translateX(20px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

/* ==========================================================================
   Empty State
   ========================================================================== */

.cyh-quiz-lite--empty {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 200px;
	padding: 2rem;
	border: 2px dashed #ddd;
	border-radius: 8px;
	background-color: #fafafa;
}

.cyh-quiz-lite--empty p {
	margin: 0;
	color: #999;
	text-align: center;
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
	.cyh-quiz-lite {
		--cyh-ql-transition-duration: 0.01ms;
	}

	.cyh-quiz-lite__slide,
	.cyh-quiz-lite__slide--back {
		animation: none;
	}

	.cyh-quiz-lite__progress-icon--active {
		transform: none;
	}
}

/* ==========================================================================
   High Contrast Mode Support
   ========================================================================== */

@media (forced-colors: active) {
	.cyh-quiz-lite__answer {
		border: 2px solid ButtonText;
	}

	.cyh-quiz-lite__answer:hover,
	.cyh-quiz-lite__answer:focus {
		border-color: Highlight;
	}

	.cyh-quiz-lite__answer--selected {
		background-color: Highlight;
		color: HighlightText;
	}

	.cyh-quiz-lite__progress-icon {
		background-color: ButtonText;
	}

	.cyh-quiz-lite__progress-icon--active,
	.cyh-quiz-lite__progress-icon--completed {
		background-color: Highlight;
	}

	.cyh-quiz-lite__error {
		border: 2px solid LinkText;
	}
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
	.cyh-quiz-lite__back-btn,
	.cyh-quiz-lite__editor-notice,
	.cyh-quiz-lite__loading,
	.cyh-quiz-lite__error {
		display: none;
	}

	.cyh-quiz-lite__answer {
		border: 1px solid #000;
		page-break-inside: avoid;
	}
}