/* ============================================================
   QUIZ-AUTO-SINGLE: Styling für den Endlosmodus mit Einzelfragen,
   Streaks und Musterlösung
   ============================================================ */

.quiz-single-main {
	max-width: 1100px;
	width: 100%;
	margin: 0 auto;
	padding: calc(var(--shell-header-h, 56px) + 28px) 20px 80px;
	box-sizing: border-box;
}

/* Header & Titelbereich */
.quiz-single-header {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	margin-bottom: 28px;
}

.quiz-single-title {
	font-size: clamp(2rem, 4vw, 2.9rem);
	color: var(--slate-800);
	margin: 0 0 10px;
	letter-spacing: -0.04em;
}

.quiz-single-subtitle {
	color: var(--slate-500);
	font-size: 1.08rem;
	margin: 0;
	max-width: 700px;
}

/* Setup-Screen */
.quiz-single-setup {
	max-width: 880px;
	margin: 0 auto 24px;
	background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
	border: 1px solid rgba(148, 163, 184, 0.22);
	border-radius: 24px;
	padding: 28px 28px 24px;
	box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.quiz-single-setup-row {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 20px;
	align-items: center;
	margin-bottom: 18px;
}

.quiz-single-setup-row label {
	display: flex;
	flex-direction: column;
	gap: 8px;
	font-weight: 700;
	color: var(--slate-700);
	text-align: center;
}

.quiz-single-setup-row select {
	padding: 12px 16px;
	border-radius: 12px;
	border: 1px solid var(--slate-300);
	font-size: 1.02rem;
	background: #fff;
	color: var(--slate-800);
	box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.quiz-single-type-grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 10px;
	margin: 0 auto 20px;
	width: 100%;
}

.quiz-single-type-chip {
	display: flex;
	align-items: center;
	gap: 8px;
	width: 100%;
	min-width: 0;
	min-height: 48px;
	height: 100%;
	box-sizing: border-box;
	padding: 8px 10px;
	border-radius: 12px;
	border: 1px solid var(--slate-300);
	cursor: pointer;
	user-select: none;
	background: #fff;
	transition: all 0.18s ease;
	text-align: left;
}

.quiz-single-type-chip:hover {
	border-color: #0284c7;
	background: #f8fafc;
	transform: translateY(-1px);
}

.quiz-single-type-chip--selected,
.quiz-single-type-chip:has(input:checked) {
	border-color: #0284c7;
	background: #f0f9ff;
	box-shadow: 0 0 0 1px #0284c7;
}

.quiz-single-type-chip input {
	flex-shrink: 0;
	margin: 0;
	accent-color: #0284c7;
	width: 15px;
	height: 15px;
	cursor: pointer;
}

.quiz-single-type-name {
	flex: 1;
	min-width: 0;
	font-size: 0.74rem;
	font-weight: 600;
	color: var(--slate-700);
	line-height: 1.22;
	white-space: normal;
	overflow-wrap: break-word;
	word-break: break-word;
	hyphens: auto;
}

@media (max-width: 820px) {
	.quiz-single-type-grid {
		grid-template-columns: repeat(3, minmax(0, 1fr));
		gap: 8px;
	}

	.quiz-single-type-name {
		font-size: 0.72rem;
	}
}

@media (max-width: 580px) {
	.quiz-single-type-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 8px;
	}

	.quiz-single-type-chip {
		min-height: 44px;
		padding: 6px 8px;
	}

	.quiz-single-type-name {
		font-size: 0.69rem;
		line-height: 1.2;
	}
}

@media (max-width: 380px) {
	.quiz-single-type-grid {
		grid-template-columns: 1fr;
	}
}

.quiz-single-setup-actions {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 12px;
	align-items: center;
}

/* Stat-Bar / Streak-Bar oben im Quiz */
.quiz-single-stats-bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
	border: 1px solid #bae6fd;
	border-radius: 18px;
	padding: 16px 22px;
	margin: 0 auto 24px;
	max-width: 820px;
	box-shadow: 0 12px 24px rgba(2, 132, 199, 0.08);
}

.quiz-single-stat-group {
	display: flex;
	align-items: center;
	gap: 30px;
	flex-wrap: wrap;
}

/* Einzelne Aufgabenkarte */
.quiz-single-card {
	max-width: 820px;
	margin: 0 auto 24px;
	background: #fff;
	border: 2px solid var(--slate-100);
	border-radius: 24px;
	padding: 30px 32px;
	box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
	transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.quiz-single-card--correct {
	border-color: #4ade80;
	background: #f0fdf4;
}

.quiz-single-card--incorrect {
	border-color: #fca5a5;
	background: #fef2f2;
}

.quiz-single-card-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 18px;
	color: var(--slate-500);
	font-size: 0.92rem;
	font-weight: 700;
}

.quiz-single-task-type-tag {
	background: var(--slate-100);
	color: var(--slate-700);
	padding: 6px 12px;
	border-radius: 999px;
	font-size: 0.8rem;
}

.quiz-single-task-text {
	font-size: clamp(1.4rem, 2vw, 1.8rem);
	line-height: 1.6;
	color: var(--slate-800);
	margin-bottom: 20px;
	min-height: 54px;
	text-align: center;
}

.quiz-single-task-text svg,
.quiz-single-solution-content svg {
	display: block;
	margin: 0 auto;
	max-width: 100%;
	height: auto;
}

.quiz-single-answer-section {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 12px;
	margin-top: 18px;
	width: 100%;
}

.quiz-single-answer-actions {
	display: flex;
	justify-content: center;
	align-items: center;
	flex-wrap: wrap;
	gap: 12px;
	width: 100%;
}

.math-key-input {
	display: flex;
	flex-direction: column;
	align-items: center;
	width: min(100%, 440px);
}

.math-key-input-row {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 100%;
	gap: 12px;
}

.quiz-single-check-button,
.quiz-single-next-button {
	min-width: 180px;
}

.quiz-single-next-button {
	min-width: 210px;
}

.math-key-input-field {
	width: 100%;
	height: 64px;
	padding: 0 20px;
	border: 1px solid rgba(148, 163, 184, 0.7);
	border-radius: 18px;
	background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
	box-shadow: inset 0 2px 6px rgba(148, 163, 184, 0.12), 0 10px 24px rgba(15, 23, 42, 0.06);
	font-size: clamp(1.2rem, 2vw, 1.5rem);
	font-weight: 700;
	color: var(--slate-800);
	text-align: center;
	transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.math-key-input-field:focus {
	outline: none;
	border-color: rgba(14, 165, 233, 0.9);
	box-shadow: inset 0 2px 6px rgba(14, 165, 233, 0.08), 0 0 0 4px rgba(14, 165, 233, 0.12);
}

.math-key-input-toggle,
.math-key-pad,
.math-key-pad-row,
.math-key-pad-btn {
	display: none !important;
}

.quiz-single-feedback {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 1.08rem;
	font-weight: 700;
	padding: 8px 14px;
	border-radius: 12px;
}

.quiz-single-feedback--correct {
	color: #15803d;
	background: #dcfce7;
}

.quiz-single-feedback--incorrect {
	color: #b91c1c;
	background: #fee2e2;
}

/* Musterlösung */
.quiz-single-solution-box {
	margin-top: 22px;
	padding: 22px 24px;
	border-top: 2px dashed #cbd5e1;
	background: rgba(255, 255, 255, 0.85);
	border-radius: 14px;
	text-align: center;
}

.quiz-single-solution-title {
	font-weight: 700;
	color: var(--slate-700);
	margin-bottom: 10px;
	font-size: 1.08rem;
	text-align: center;
}

.quiz-single-solution-content {
	color: var(--slate-800);
	font-size: clamp(1.1rem, 2vw, 1.45rem);
	line-height: 1.6;
	text-align: center;
}

/* Steuerung / Navigation im Quiz */
.quiz-single-controls {
	display: flex;
	justify-content: center;
	align-items: center;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 20px;
}

.quiz-single-btn-reset,
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 12px 18px;
	border-radius: 14px;
	border: 1px solid transparent;
	font-weight: 700;
	font-size: 0.96rem;
	cursor: pointer;
	transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.quiz-single-summary {
	max-width: 1100px;
	width: 100%;
	margin: 0 auto;
}

.quiz-single-summary-card {
	width: 100%;
	max-width: 1100px;
	box-sizing: border-box;
	background: #fff;
	border: 1px solid #e2e8f0;
	border-radius: 18px;
	padding: 28px;
	box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
}

.quiz-single-summary-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 16px;
	margin-bottom: 24px;
}

.quiz-single-summary-header h2 {
	margin: 0;
	font-size: clamp(1.8rem, 3vw, 2.4rem);
	color: #0f172a;
}

.quiz-single-summary-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	gap: 12px;
	margin-bottom: 20px;
}

.quiz-single-summary-metric {
	background: #f1f5f9;
	border: 1px solid #e2e8f0;
	border-radius: 12px;
	padding: 12px 14px;
	min-width: 0;
}

.quiz-single-summary-label {
	display: block;
	color: #475569;
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	margin-bottom: 8px;
}

.quiz-single-summary-metric strong {
	font-size: 1rem;
	color: #0f172a;
	line-height: 1.2;
}

.result-status {
	font-weight: 700;
	text-align: center;
	border-radius: 8px;
	padding: 4px 8px;
}

.result-status--correct {
	color: #15803d;
	background: rgba(34, 197, 94, 0.12);
}

.result-status--incorrect {
	color: #b91c1c;
	background: rgba(239, 68, 68, 0.12);
}

.quiz-single-summary-table-wrap {
	overflow-x: auto;
	margin-top: 22px;
	border-radius: 14px;
	border: 1px solid #e2e8f0;
}

.quiz-single-summary .number-line-svg,
.quiz-single-summary-card .number-line-svg {
	width: 100%;
	height: auto;
	display: block;
	margin: 0 auto;
}

.quiz-single-summary-table {
	width: 100%;
	border-collapse: collapse;
	min-width: 760px;
	background: #fff;
}

.quiz-single-summary-table th,
.quiz-single-summary-table td {
	padding: 10px 12px;
	border: 1px solid #e2e8f0;
	vertical-align: top;
	text-align: center;
}

.quiz-single-summary-table thead th {
	background: #f8fafc;
	color: #475569;
	font-size: 0.8rem;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	text-align: center;
}

.quiz-single-summary-actions {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 22px;
}

.btn {
	background: linear-gradient(180deg, #f8fafc 0%, #edf2f7 100%);
	color: var(--slate-800);
	border-color: rgba(148, 163, 184, 0.24);
	box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.btn:hover:not(:disabled),
.quiz-single-btn-reset:hover {
	transform: translateY(-1px);
	box-shadow: 0 12px 22px rgba(15, 23, 42, 0.12);
}

.btn:disabled {
	opacity: 0.55;
	cursor: not-allowed;
	box-shadow: none;
}

.btn--primary {
	background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
	border-color: transparent;
	color: #fff;
	box-shadow: 0 10px 22px rgba(2, 132, 199, 0.24);
}

.quiz-single-btn-reset {
	background: #f1f5f9;
	color: var(--slate-700);
	border-color: var(--slate-300);
}

.quiz-single-stat-item {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 0.96rem;
	font-weight: 700;
	color: #0369a1;
}

.quiz-single-stat-value {
	font-weight: 800;
	font-size: 1.12rem;
	color: #0284c7;
}

.quiz-single-streak-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background: linear-gradient(135deg, #ffedd5 0%, #fed7aa 100%);
	border: 1px solid #fdba74;
	color: #c2410c;
	padding: 8px 16px;
	border-radius: 999px;
	font-weight: 800;
	font-size: 1rem;
	box-shadow: 0 2px 8px rgba(234, 88, 12, 0.15);
	animation: pulseStreak 2s infinite ease-in-out;
}

@keyframes pulseStreak {
	0%, 100% { transform: scale(1); }
	50% { transform: scale(1.04); }
}

.quiz-single-streak-lost {
	color: #dc2626;
	font-weight: 600;
	font-size: 0.85rem;
	margin-left: 6px;
}