/**
 * Simple Quiz - Frontend Styles
 *
 * Themeable via CSS custom properties.
 * Accessible, responsive, motion-respecting.
 *
 * @package Simple_Quiz
 */

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

.simple-quiz-container {
	position: relative;
	--sq-primary: #001F3F;
	--sq-primary-hover: #0d3b66;
	--sq-accent: #FFDC00;
	--sq-accent-hover: #e6c600;
	--sq-bg: #ffffff;
	--sq-text: #1e293b;
	--sq-btn-text: #ffffff;
	--sq-max-width: 720px;
	--sq-font-size: 16px;
	--sq-radius: 8px;
	--sq-btn-radius: 8px;
	--sq-answer-padding: 16px;
	--sq-answer-gap: 10px;
	--sq-progress-height: 6px;

	box-sizing: border-box;
	max-width: var(--sq-max-width);
	margin: 0 auto;
	padding: 32px 24px;
	font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
	font-size: var(--sq-font-size);
	line-height: 1.5;
	color: var(--sq-text);
	background: var(--sq-bg);
	border-radius: var(--sq-radius);
	-webkit-font-smoothing: antialiased;
}

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

.simple-quiz-progress {
	margin-bottom: 36px;
}

.simple-quiz-progress-text {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 13px;
	color: #64748b;
	margin-bottom: 10px;
	font-weight: 500;
}

.simple-quiz-progress-bar {
	height: var(--sq-progress-height);
	background: #e2e8f0;
	border-radius: 99px;
	overflow: hidden;
}

.simple-quiz-progress-fill {
	height: 100%;
	background: var(--sq-primary);
	border-radius: 99px;
	transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
	width: 0%;
}

/* ========================================
   Category Chip
   ======================================== */

.simple-quiz-category-chip {
	display: inline-block;
	background: var(--sq-primary);
	color: var(--sq-btn-text);
	padding: 5px 14px;
	border-radius: 99px;
	font-size: 11px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin-bottom: 16px;
	opacity: 0.85;
}

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

.simple-quiz-question-text {
	font-size: 22px;
	color: var(--sq-text);
	font-weight: 700;
	line-height: 1.35;
	margin: 0 0 28px 0;
	letter-spacing: -0.2px;
}

.simple-quiz-optional-tag {
	font-size: 0.6em;
	font-weight: 400;
	opacity: 0.5;
	letter-spacing: 0;
}


/* ========================================
   Answer Options
   ======================================== */

.simple-quiz-answers {
	display: flex;
	flex-direction: column;
	gap: var(--sq-answer-gap);
}

.simple-quiz-answer {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: var(--sq-answer-padding) calc(var(--sq-answer-padding) + 4px);
	border: 2px solid #e2e8f0;
	border-radius: var(--sq-radius);
	cursor: pointer;
	transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
	background: #fff;
	position: relative;
	-webkit-tap-highlight-color: transparent;
}

.simple-quiz-answer:hover {
	border-color: var(--sq-accent);
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.simple-quiz-answer:active {
	transform: scale(0.98);
}

.simple-quiz-answer.selected {
	border-color: var(--sq-primary);
	box-shadow: 0 0 0 1px var(--sq-primary), 0 2px 12px rgba(0, 0, 0, 0.08);
}

.simple-quiz-answer input {
	position: absolute;
	opacity: 0;
	width: 0;
	height: 0;
	pointer-events: none;
}

/* ========================================
   Custom Radio Circle
   ======================================== */

.simple-quiz-answer-radio {
	width: 22px;
	height: 22px;
	min-width: 22px;
	border: 2px solid #cbd5e1;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.simple-quiz-answer-radio::after {
	content: '';
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: transparent;
	transition: background 0.2s ease, transform 0.2s ease;
	transform: scale(0);
}

.simple-quiz-answer.selected .simple-quiz-answer-radio {
	border-color: var(--sq-primary);
}

.simple-quiz-answer.selected .simple-quiz-answer-radio::after {
	background: var(--sq-primary);
	transform: scale(1);
}

/* ========================================
   Answer Text
   ======================================== */

.simple-quiz-answer-text {
	font-size: 15px;
	color: #334155;
	font-weight: 500;
	transition: color 0.2s ease;
}

.simple-quiz-answer.selected .simple-quiz-answer-text {
	color: var(--sq-primary);
	font-weight: 600;
}

/* ========================================
   Navigation Buttons
   ======================================== */

.simple-quiz-nav {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-top: 32px;
	gap: 12px;
}

.simple-quiz-btn {
	padding: 12px 24px;
	border: 1px solid #e2e8f0;
	border-radius: var(--sq-btn-radius);
	background: #fff;
	color: #64748b;
	font-size: 14px;
	font-weight: 500;
	cursor: pointer;
	transition: all 0.2s ease;
	-webkit-tap-highlight-color: transparent;
	min-height: 44px;
}

.simple-quiz-btn:hover {
	background: #f8fafc;
	border-color: var(--sq-accent);
}

.simple-quiz-btn:active {
	transform: scale(0.97);
}

.simple-quiz-btn-primary {
	border: none;
	background: var(--sq-primary);
	color: var(--sq-btn-text);
	font-weight: 600;
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.simple-quiz-btn-primary:hover {
	background: var(--sq-primary-hover);
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.simple-quiz-btn:disabled {
	opacity: 0.35;
	cursor: not-allowed;
	transform: none;
	box-shadow: none;
}

/* ========================================
   Results Screen
   ======================================== */

.simple-quiz-results {
	text-align: center;
	padding: 8px 0;
}

.simple-quiz-result-banner {
	border-radius: calc(var(--sq-radius) * 2);
	padding: 28px 24px;
	margin-bottom: 24px;
}

.simple-quiz-result-banner h2 {
	font-size: 24px;
	font-weight: 700;
	margin: 0 0 8px 0;
	letter-spacing: -0.2px;
}

.simple-quiz-result-banner p {
	font-size: 15px;
	margin: 0;
	line-height: 1.5;
	opacity: 0.85;
}

/* ========================================
   Score Display
   ======================================== */

.simple-quiz-score-section {
	background: #f8fafc;
	border-radius: calc(var(--sq-radius) * 1.75);
	padding: 20px;
	margin-bottom: 20px;
	border: 1px solid #f1f5f9;
}

.simple-quiz-score-label {
	font-size: 12px;
	color: #94a3b8;
	text-transform: uppercase;
	letter-spacing: 0.8px;
	font-weight: 700;
	margin-bottom: 4px;
}

.simple-quiz-score-value {
	font-size: 36px;
	color: var(--sq-text);
	font-weight: 800;
	letter-spacing: -1px;
	font-variant-numeric: tabular-nums;
}

.simple-quiz-score-max {
	font-size: 18px;
	color: #94a3b8;
	font-weight: 400;
}

/* ========================================
   Score Bar Visualization
   ======================================== */

.simple-quiz-score-bar-container {
	background: #fff;
	border-radius: calc(var(--sq-radius) * 1.75);
	padding: 20px;
	border: 1px solid #e2e8f0;
	margin-bottom: 20px;
}

.simple-quiz-score-bar {
	display: flex;
	height: 10px;
	border-radius: 99px;
	overflow: hidden;
	position: relative;
	margin-bottom: 4px;
}

.simple-quiz-score-bar-segment {
	height: 100%;
	transition: opacity 0.2s ease;
}

.simple-quiz-score-bar-segment:first-child {
	border-radius: 99px 0 0 99px;
}

.simple-quiz-score-bar-segment:last-child {
	border-radius: 0 99px 99px 0;
}

.simple-quiz-score-bar-marker-wrap {
	position: relative;
	height: 20px;
}

.simple-quiz-score-bar-marker {
	position: absolute;
	top: 0;
	font-size: 12px;
	font-weight: 700;
	transform: translateX(-50%);
	color: var(--sq-text);
}

.simple-quiz-score-bar-labels {
	display: flex;
	justify-content: space-between;
	font-size: 11px;
	color: #94a3b8;
	margin-top: 8px;
	font-weight: 500;
}

/* ========================================
   Disclaimer
   ======================================== */

.simple-quiz-disclaimer {
	font-size: 13px;
	color: #94a3b8;
	font-style: italic;
	margin-bottom: 20px;
	line-height: 1.6;
}

/* ========================================
   Retry Button
   ======================================== */

.simple-quiz-retry {
	margin-top: 12px;
	border-color: #e2e8f0;
}

.simple-quiz-retry:hover {
	border-color: var(--sq-accent-hover);
	color: var(--sq-primary);
	background: var(--sq-bg);
}

/* ========================================
   Knowledge Quiz — Review Section
   ======================================== */

.simple-quiz-review {
	text-align: left;
	margin-bottom: 24px;
}

.simple-quiz-review-heading {
	font-size: 14px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.6px;
	color: #64748b;
	margin: 0 0 16px 0;
	padding-bottom: 8px;
	border-bottom: 1px solid #e2e8f0;
}

.simple-quiz-review-item {
	border-radius: var(--sq-radius);
	padding: 16px 20px;
	margin-bottom: 12px;
	border: 1px solid #e2e8f0;
	background: #fff;
}

.simple-quiz-review-correct {
	border-color: #bbf7d0;
	background: #f0fdf4;
}

.simple-quiz-review-incorrect {
	border-color: #fecaca;
	background: #fef2f2;
}

.simple-quiz-review-header {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 8px;
}

.simple-quiz-review-icon {
	width: 26px;
	height: 26px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 14px;
	font-weight: 700;
	flex-shrink: 0;
}

.simple-quiz-review-correct .simple-quiz-review-icon {
	background: #22c55e;
	color: #fff;
}

.simple-quiz-review-incorrect .simple-quiz-review-icon {
	background: #ef4444;
	color: #fff;
}

.simple-quiz-review-status {
	font-size: 13px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.3px;
}

.simple-quiz-review-correct .simple-quiz-review-status {
	color: #15803d;
}

.simple-quiz-review-incorrect .simple-quiz-review-status {
	color: #dc2626;
}

.simple-quiz-review-qtext {
	font-size: 16px;
	font-weight: 600;
	color: var(--sq-text);
	margin: 0 0 12px 0;
	line-height: 1.4;
}

/* --- Review Answer Rows --- */

.simple-quiz-review-answers {
	display: flex;
	flex-direction: column;
	gap: 6px;
	margin-bottom: 8px;
}

.simple-quiz-review-answer {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 8px 12px;
	border-radius: 6px;
	font-size: 14px;
	color: #64748b;
	background: transparent;
	border: 1px solid transparent;
	transition: none;
}

.simple-quiz-review-answer-correct {
	background: #dcfce7;
	border-color: #86efac;
	color: #15803d;
	font-weight: 600;
}

.simple-quiz-review-answer-wrong {
	background: #fee2e2;
	border-color: #fca5a5;
	color: #dc2626;
	font-weight: 600;
}

.simple-quiz-review-answer-icon {
	width: 20px;
	min-width: 20px;
	font-size: 14px;
	font-weight: 700;
	text-align: center;
}

.simple-quiz-review-answer-correct .simple-quiz-review-answer-icon {
	color: #16a34a;
}

.simple-quiz-review-answer-wrong .simple-quiz-review-answer-icon {
	color: #dc2626;
}

.simple-quiz-review-answer-text {
	flex: 1;
}

/* --- Review Explanation --- */

.simple-quiz-review-explanation {
	margin-top: 10px;
	padding: 10px 14px;
	background: rgba(0, 0, 0, 0.03);
	border-radius: 6px;
	font-size: 13px;
	line-height: 1.6;
	color: #475569;
	border-left: 3px solid #94a3b8;
}

/* ========================================
   Inline Toast
   ======================================== */

.simple-quiz-toast {
	position: absolute;
	left: 50%;
	bottom: 80px;
	transform: translateX(-50%) translateY(8px);
	background: var(--sq-text, #1e293b);
	color: #fff;
	font-size: 13px;
	font-weight: 600;
	padding: 10px 20px;
	border-radius: 99px;
	white-space: nowrap;
	pointer-events: none;
	opacity: 0;
	transition: opacity 0.3s ease, transform 0.3s ease;
	z-index: 10;
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
}

.simple-quiz-toast-visible {
	opacity: 1;
	transform: translateX(-50%) translateY(0);
}

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

@media (prefers-reduced-motion: reduce) {
	.simple-quiz-progress-fill,
	.simple-quiz-answer,
	.simple-quiz-answer-radio,
	.simple-quiz-answer-radio::after,
	.simple-quiz-answer-text,
	.simple-quiz-btn,
	.simple-quiz-btn-primary,
	.simple-quiz-score-bar-segment {
		transition: none;
	}

	.simple-quiz-answer:active,
	.simple-quiz-btn:active {
		transform: none;
	}

	.simple-quiz-toast {
		transition: none;
	}
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 600px) {
	.simple-quiz-container {
		padding: 20px 16px;
	}

	.simple-quiz-question-text {
		font-size: 19px;
		margin-bottom: 24px;
	}

	.simple-quiz-answer {
		padding: 14px 16px;
		gap: 12px;
	}

	.simple-quiz-nav {
		margin-top: 24px;
	}

	.simple-quiz-btn {
		padding: 12px 18px;
		font-size: 14px;
	}

	.simple-quiz-result-banner {
		padding: 20px 16px;
	}

	.simple-quiz-score-value {
		font-size: 28px;
	}
}