/**
 * Conversational quiz styles — Typeform-style immersive layout.
 *
 * Uses lrn-conv__* prefix to avoid conflicts with base .lrn-quiz__* styles.
 * All values reference --lrn-* tokens from learnomy.css.
 *
 * @package Learnomy
 */

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

.lrn-conv {
	position: relative;
	background: var(--lrn-bg);
	color: var(--lrn-text);
	font-family: var(--lrn-font);
	min-height: 100vh;
	min-height: 100dvh;
}

/* ==========================================================================
   Progress bar — thin fixed line at top
   ========================================================================== */

.lrn-conv__progress {
	position: fixed;
	top: 0;
	left: 0;
	height: 3px;
	background: var(--lrn-accent);
	transition: width 0.4s ease;
	z-index: 100;
}

/* ==========================================================================
   Timer — minimal, top-right
   ========================================================================== */

.lrn-conv__timer {
	position: fixed;
	top: var(--lrn-sp-3);
	right: var(--lrn-sp-4);
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-tertiary);
	z-index: 101;
	display: flex;
	align-items: center;
	gap: var(--lrn-sp-1);
}

.lrn-conv__timer svg {
	width: 14px;
	height: 14px;
}

.lrn-conv__timer--urgent {
	color: var(--lrn-danger);
	font-weight: var(--lrn-weight-semibold);
}

/* ==========================================================================
   Start screen — full viewport centered
   ========================================================================== */

.lrn-conv__start {
	min-height: 100vh;
	min-height: 100dvh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: var(--lrn-sp-8);
}

.lrn-conv__start-title {
	font-size: var(--lrn-text-2xl);
	font-weight: var(--lrn-weight-semibold);
	margin: 0 0 var(--lrn-sp-4);
	line-height: var(--lrn-leading-tight);
}

.lrn-conv__start-desc {
	font-size: var(--lrn-text-md);
	color: var(--lrn-text-secondary);
	max-width: 520px;
	margin: 0 0 var(--lrn-sp-8);
	line-height: var(--lrn-leading-relaxed);
}

.lrn-conv__start-rules {
	list-style: none;
	padding: 0;
	margin: 0 0 var(--lrn-sp-8);
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: var(--lrn-sp-4) var(--lrn-sp-6);
}

.lrn-conv__start-rules li {
	display: flex;
	align-items: center;
	gap: var(--lrn-sp-2);
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-secondary);
}

.lrn-conv__start-rules svg {
	width: 16px;
	height: 16px;
	flex-shrink: 0;
}

.lrn-conv__start-btn {
	font-size: var(--lrn-text-md);
	padding: var(--lrn-sp-4) var(--lrn-sp-10);
	border-radius: var(--lrn-radius-xl);
}

/* ==========================================================================
   Player
   ========================================================================== */

.lrn-conv__player {
	position: relative;
}

/* Anti-cheat warning */
.lrn-conv__cheat-warning {
	position: fixed;
	top: var(--lrn-sp-3);
	left: 50%;
	transform: translateX(-50%);
	background: var(--lrn-warn-bg);
	color: var(--lrn-warn);
	font-size: var(--lrn-text-sm);
	padding: var(--lrn-sp-2) var(--lrn-sp-4);
	border-radius: var(--lrn-radius-lg);
	display: flex;
	align-items: center;
	gap: var(--lrn-sp-2);
	z-index: 102;
}

.lrn-conv__cheat-warning svg {
	width: 16px;
	height: 16px;
	flex-shrink: 0;
}

/* ==========================================================================
   Question card — full viewport centered
   ========================================================================== */

.lrn-conv__card {
	min-height: 100vh;
	min-height: 100dvh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: var(--lrn-sp-8);
	text-align: center;
	transition: opacity 0.3s ease, transform 0.3s ease;
}

.lrn-conv__card--transitioning {
	opacity: 0.3;
	transform: translateY(-20px);
}

/* Question counter */
.lrn-conv__counter {
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-tertiary);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin-bottom: var(--lrn-sp-4);
}

/* Question text — large and centered */
.lrn-conv__question {
	font-size: var(--lrn-text-2xl);
	font-weight: var(--lrn-weight-semibold);
	max-width: 640px;
	margin: 0 0 var(--lrn-sp-8);
	line-height: var(--lrn-leading-relaxed);
}

/* ==========================================================================
   Pill answer buttons
   ========================================================================== */

.lrn-conv__options {
	width: 100%;
	max-width: 640px;
}

.lrn-conv__option {
	display: block;
	width: 100%;
	padding: var(--lrn-sp-4) var(--lrn-sp-6);
	margin-bottom: var(--lrn-sp-3);
	border: 2px solid var(--lrn-border);
	border-radius: var(--lrn-radius-xl);
	background: var(--lrn-bg);
	color: var(--lrn-text);
	font-family: var(--lrn-font);
	font-size: var(--lrn-text-md);
	cursor: pointer;
	transition: all var(--lrn-dur) var(--lrn-ease);
	text-align: start;
	line-height: var(--lrn-leading-normal);
}

.lrn-conv__option:hover {
	border-color: var(--lrn-accent);
	background: var(--lrn-accent-bg);
}

.lrn-conv__option:focus-visible {
	outline: 3px solid color-mix(in srgb, var(--lrn-accent) 30%, transparent);
	outline-offset: 0;
}

.lrn-conv__option--selected {
	border-color: var(--lrn-accent);
	background: var(--lrn-accent);
	color: var(--lrn-white);
}

.lrn-conv__option--selected:hover {
	border-color: var(--lrn-accent-hover);
	background: var(--lrn-accent-hover);
}

/* ==========================================================================
   Text input & essay — centered below question
   ========================================================================== */

.lrn-conv__text-input,
.lrn-conv__essay {
	width: 100%;
	max-width: 640px;
	text-align: start;
}

.lrn-conv__input {
	width: 100%;
	font-size: var(--lrn-text-md);
	padding: var(--lrn-sp-4);
	border-radius: var(--lrn-radius-lg);
}

.lrn-conv__textarea {
	width: 100%;
	font-size: var(--lrn-text-md);
	padding: var(--lrn-sp-4);
	border-radius: var(--lrn-radius-lg);
	resize: vertical;
}

/* Continue button for text/essay questions */
.lrn-conv__continue {
	margin-top: var(--lrn-sp-6);
	border-radius: var(--lrn-radius-xl);
	padding: var(--lrn-sp-3) var(--lrn-sp-8);
}

/* Hint */
.lrn-conv__hint {
	max-width: 640px;
	margin-top: var(--lrn-sp-6);
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-secondary);
	text-align: start;
}

.lrn-conv__hint summary {
	cursor: pointer;
}

/* Keyboard shortcut hint */
.lrn-conv__keyboard-hint {
	position: fixed;
	bottom: var(--lrn-sp-4);
	left: 50%;
	transform: translateX(-50%);
	font-size: var(--lrn-text-xs);
	color: var(--lrn-text-tertiary);
}

/* ==========================================================================
   Results — full viewport centered
   ========================================================================== */

.lrn-conv__results {
	min-height: 80vh;
	min-height: 80dvh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: var(--lrn-sp-8);
}

.lrn-conv__results-icon {
	margin-bottom: var(--lrn-sp-4);
}

.lrn-conv__results-icon svg {
	width: 64px;
	height: 64px;
	color: var(--lrn-danger);
}

.lrn-conv__results-icon--pass svg {
	color: var(--lrn-success);
}

.lrn-conv__results-title {
	font-size: var(--lrn-text-2xl);
	font-weight: var(--lrn-weight-semibold);
	margin: 0 0 var(--lrn-sp-2);
}

.lrn-conv__results-score {
	font-size: var(--lrn-text-xl);
	color: var(--lrn-text-secondary);
	margin: 0 0 var(--lrn-sp-2);
}

.lrn-conv__results-breakdown {
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-tertiary);
	margin: 0 0 var(--lrn-sp-2);
}

.lrn-conv__results-status {
	font-size: var(--lrn-text-md);
	margin: 0 0 var(--lrn-sp-6);
}

.lrn-conv__results-actions {
	display: flex;
	gap: var(--lrn-sp-3);
	flex-wrap: wrap;
	justify-content: center;
	margin-bottom: var(--lrn-sp-10);
}

/* ==========================================================================
   Review section
   ========================================================================== */

.lrn-conv__review {
	width: 100%;
	max-width: 640px;
	text-align: start;
}

.lrn-conv__review-heading {
	font-size: var(--lrn-text-lg);
	font-weight: var(--lrn-weight-semibold);
	margin: 0 0 var(--lrn-sp-4);
}

.lrn-conv__review-item {
	margin-bottom: var(--lrn-sp-4);
	padding: var(--lrn-sp-4);
}

.lrn-conv__review-item--correct {
	border-inline-start: 3px solid var(--lrn-success);
}

.lrn-conv__review-item--incorrect {
	border-inline-start: 3px solid var(--lrn-danger);
}

.lrn-conv__review-item--pending {
	border-inline-start: 3px solid var(--lrn-warn);
}

.lrn-conv__review-item-header {
	display: flex;
	align-items: center;
	gap: var(--lrn-sp-2);
	margin-bottom: var(--lrn-sp-3);
}

.lrn-conv__review-item-status svg {
	width: 18px;
	height: 18px;
}

.lrn-conv__review-item--correct .lrn-conv__review-item-status svg {
	color: var(--lrn-success);
}

.lrn-conv__review-item--incorrect .lrn-conv__review-item-status svg {
	color: var(--lrn-danger);
}

.lrn-conv__review-item--pending .lrn-conv__review-item-status svg {
	color: var(--lrn-warn);
}

.lrn-conv__review-item-title {
	flex: 1;
	font-size: var(--lrn-text-base);
	font-weight: var(--lrn-weight-medium);
	margin: 0;
}

.lrn-conv__review-item-score {
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-tertiary);
}

.lrn-conv__review-answer {
	display: flex;
	align-items: center;
	gap: var(--lrn-sp-2);
	padding: var(--lrn-sp-2) 0;
	font-size: var(--lrn-text-sm);
}

.lrn-conv__review-answer-icon svg {
	width: 14px;
	height: 14px;
	color: var(--lrn-text-tertiary);
}

.lrn-conv__review-answer--correct .lrn-conv__review-answer-icon svg {
	color: var(--lrn-success);
}

.lrn-conv__review-answer--wrong .lrn-conv__review-answer-icon svg {
	color: var(--lrn-danger);
}

.lrn-conv__review-answer--selected {
	font-weight: var(--lrn-weight-medium);
}

.lrn-conv__review-essay {
	margin-top: var(--lrn-sp-3);
}

.lrn-conv__review-essay-label {
	font-size: var(--lrn-text-sm);
	color: var(--lrn-text-tertiary);
	margin: 0 0 var(--lrn-sp-2);
}

.lrn-conv__review-essay-text {
	font-size: var(--lrn-text-sm);
	border-inline-start: 3px solid var(--lrn-border-heavy);
	padding-inline-start: var(--lrn-sp-4);
	margin: 0 0 var(--lrn-sp-2);
}

.lrn-conv__review-essay-pending {
	font-size: var(--lrn-text-xs);
	color: var(--lrn-warn);
	display: flex;
	align-items: center;
	gap: var(--lrn-sp-1);
	margin: 0;
}

.lrn-conv__review-essay-pending svg {
	width: 12px;
	height: 12px;
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

@media ( prefers-reduced-motion: reduce ) {
	.lrn-conv__card--transitioning {
		opacity: 0.3;
		transform: none;
		transition: opacity 0.2s;
	}

	.lrn-conv__progress {
		transition: none;
	}
}

/* ==========================================================================
   Mobile (640px)
   ========================================================================== */

@media ( max-width: 640px ) {
	.lrn-conv__start,
	.lrn-conv__card {
		padding: var(--lrn-sp-6) var(--lrn-sp-4);
	}

	.lrn-conv__question {
		font-size: var(--lrn-text-xl);
	}

	.lrn-conv__start-title {
		font-size: var(--lrn-text-xl);
	}

	.lrn-conv__option {
		padding: var(--lrn-sp-3) var(--lrn-sp-4);
	}

	.lrn-conv__keyboard-hint {
		display: none;
	}
}

@media ( max-width: 640px ) {
	.lrn-conv__start,
	.lrn-conv__card {
		padding: var(--lrn-sp-4) var(--lrn-sp-3);
	}

	.lrn-conv__question {
		font-size: var(--lrn-text-lg);
	}

	.lrn-conv__start-title {
		font-size: var(--lrn-text-lg);
	}

	.lrn-conv__nav {
		flex-direction: column;
		gap: var(--lrn-sp-2);
	}

	.lrn-conv__nav .lrn-btn {
		width: 100%;
		justify-content: center;
	}
}