:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #eef3fa;
    --border: #dce4f0;
    --text: #17253b;
    --text-muted: #5a6b85;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-soft: #dbeafe;
    --secondary: #0d9488;
    --secondary-hover: #0f766e;
    --secondary-soft: #ccfbf1;
    --accent: #f59e0b;
    --accent-soft: #fef3c7;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --shadow-sm: 0 2px 8px rgba(23, 37, 59, 0.06);
    --shadow-md: 0 10px 28px rgba(23, 37, 59, 0.09);
}

*, *::before, *::after {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Topbar */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 70px;
    gap: 1rem;
    flex-wrap: wrap;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text);
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), #4f46e5);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.brand-title {
    display: block;
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.brand-subtitle {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.user-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    padding: 0.3rem 0.75rem 0.3rem 0.35rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.92rem;
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding-top: 1.75rem;
    padding-bottom: 3rem;
}

.storage-notice {
    background: var(--accent-soft);
    color: #92400e;
    border: 1px solid #fcd34d;
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    margin-bottom: 1.25rem;
}

/* Cards & Buttons */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    font-family: inherit;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.65rem 1.15rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.1s ease, background-color 0.15s ease, box-shadow 0.15s ease;
    text-decoration: none;
}

.btn:active {
    transform: translateY(1px);
}

.btn-sm {
    padding: 0.42rem 0.8rem;
    font-size: 0.86rem;
}

.btn-lg {
    padding: 0.85rem 1.4rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--secondary);
    color: #fff;
    box-shadow: 0 3px 10px rgba(13, 148, 136, 0.22);
}

.btn-secondary:hover {
    background: var(--secondary-hover);
}

.btn-outline {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.btn-outline:hover {
    background: var(--surface-soft);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
}

.btn-ghost:hover {
    background: var(--surface-soft);
}

/* Hero & Auth */
.hero-card {
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 60%, #0d9488 100%);
    color: #fff;
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.75rem;
    box-shadow: var(--shadow-md);
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.hero-card h1 {
    margin: 0 0 0.5rem 0;
    font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.hero-card p {
    margin: 0;
    opacity: 0.92;
    font-size: 1.02rem;
    max-width: 680px;
}

.auth-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 1.5rem;
}

.auth-card .card-header h2 {
    margin: 0 0 0.25rem 0;
    font-size: 1.35rem;
}

.auth-card .card-header p {
    margin: 0 0 1.25rem 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.user-list-section {
    margin-bottom: 1.2rem;
    padding: 0.9rem;
    background: var(--surface-soft);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
}

.field-label {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text);
}

.user-quick-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    max-height: 150px;
    overflow-y: auto;
}

.user-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text);
    transition: all 0.12s ease;
}

.user-chip:hover,
.user-chip.selected {
    background: var(--primary-soft);
    border-color: var(--primary);
    color: var(--primary-hover);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

.muted-inline {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.help-text {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.3rem;
}

.input, .select-input {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input-sm {
    width: auto;
    min-width: 140px;
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
}

.input:focus, .select-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.pin-input {
    letter-spacing: 0.25em;
    font-weight: 700;
}

.alert {
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.alert-error {
    background: var(--danger-soft);
    color: var(--danger);
    border: 1px solid #fca5a5;
}

/* Dashboard Stats Overview */
.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

.stat-label {
    display: block;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text);
}

/* Sections */
.section-block {
    margin-bottom: 2.5rem;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.15rem;
}

.section-header h2 {
    margin: 0 0 0.25rem 0;
    font-size: 1.4rem;
}

.section-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}

/* Single Tables Grid (1..10) */
.tables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.table-card {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.15rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 0.85rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease;
}

.table-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.table-card.completed {
    border-color: #93c5fd;
}

.table-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.table-number-badge {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-soft);
    color: var(--primary-hover);
    font-weight: 800;
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.table-star-badge {
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: var(--surface-soft);
    color: var(--text-muted);
}

.table-star-badge.has-record {
    background: var(--success-soft);
    color: var(--success);
}

.table-card-title {
    margin: 0.25rem 0 0.1rem 0;
    font-size: 1.12rem;
    font-weight: 800;
}

.table-card-range {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.table-card-stats {
    background: var(--surface-soft);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.75rem;
    font-size: 0.83rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.table-stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-stat-row strong {
    font-weight: 700;
}

.table-card-actions {
    display: flex;
    gap: 0.45rem;
}

.table-card-actions .btn-start {
    flex: 1;
}

/* All Tables Test Grid (20, 50, 100) */
.all-tables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 1.25rem;
}

.all-test-card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.all-test-card.featured {
    border-color: var(--secondary);
    background: linear-gradient(180deg, #f0fdfa 0%, #ffffff 100%);
}

.test-pill {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.22rem 0.65rem;
    border-radius: 999px;
    background: var(--secondary-soft);
    color: var(--secondary-hover);
    margin-bottom: 0.4rem;
}

/* Quiz View */
.quiz-container {
    max-width: 680px;
    margin: 0 auto;
}

.quiz-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.quiz-mode-badge {
    display: inline-block;
    font-weight: 800;
    font-size: 1.1rem;
    margin-right: 0.6rem;
}

.quiz-record-hint {
    font-size: 0.86rem;
    color: var(--text-muted);
    font-weight: 600;
}

.quiz-timer-box {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    padding: 0.45rem 0.95rem;
    border-radius: 999px;
    font-weight: 800;
    font-size: 1.1rem;
    font-variant-numeric: tabular-nums;
    box-shadow: var(--shadow-sm);
}

.quiz-progress-section {
    margin-bottom: 1.25rem;
}

.quiz-progress-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.retry-pill {
    background: var(--accent-soft);
    color: #b45309;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
}

.progress-bar-track {
    width: 100%;
    height: 12px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 999px;
    transition: width 0.22s ease;
}

.quiz-stage-card {
    text-align: center;
    padding: 2rem 1.5rem;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.quiz-stage-card.flash-correct {
    border-color: var(--success);
    background-color: #f0fdf4;
}

.quiz-stage-card.flash-wrong {
    border-color: var(--danger);
    background-color: #fef2f2;
}

.repeat-notice {
    display: inline-block;
    background: var(--accent-soft);
    color: #92400e;
    font-weight: 700;
    font-size: 0.86rem;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.equation-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    font-size: clamp(2.3rem, 6vw, 3.6rem);
    font-weight: 800;
    margin: 0.5rem 0 1.75rem 0;
    font-variant-numeric: tabular-nums;
}

.eq-operator, .eq-equals {
    color: var(--primary);
}

.answer-input {
    width: 135px;
    height: 76px;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    text-align: center;
    border: 3px solid var(--primary);
    border-radius: var(--radius-md);
    background: var(--surface);
    color: var(--text);
    font-family: inherit;
    font-variant-numeric: tabular-nums;
}

.answer-input:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

/* Wrong Answer Feedback Modal/Box inside Quiz */
.wrong-feedback-box {
    background: #fff1f2;
    border: 2px solid #fda4af;
    border-radius: var(--radius-md);
    padding: 1.35rem;
    margin: 0 auto 1.25rem auto;
    max-width: 460px;
    animation: popIn 0.18s ease-out;
}

@keyframes popIn {
    from {
        transform: scale(0.96);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.wrong-feedback-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    color: var(--danger);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.wrong-correct-equation {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    background: #ffffff;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    margin: 0.4rem 0;
    border: 1px solid #fecdd3;
}

.wrong-correct-equation strong {
    color: var(--success);
    text-decoration: underline;
}

.wrong-subtext {
    margin: 0.5rem 0 1rem 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* On-screen Numpad */
.numpad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    max-width: 360px;
    margin: 0 auto;
}

.numpad-btn {
    height: 56px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    font-size: 1.35rem;
    font-weight: 800;
    font-family: inherit;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.1s ease, transform 0.08s ease;
}

.numpad-btn:hover {
    background: #e2e8f0;
}

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

.numpad-clear {
    font-size: 1rem;
    color: var(--danger);
    background: #fff1f2;
    border-color: #fecdd3;
}

.numpad-submit {
    font-size: 1.05rem;
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.numpad-submit:hover {
    background: var(--primary-hover);
}

/* Result & History Comparison */
.result-hero-card {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 2rem 1.5rem;
}

.record-banner {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b, #ea580c);
    color: #fff;
    font-weight: 800;
    font-size: 0.92rem;
    padding: 0.35rem 1rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.result-hero-card h2 {
    margin: 0 0 0.25rem 0;
    font-size: 1.85rem;
}

.result-subtitle {
    margin: 0 0 1.25rem 0;
    color: var(--text-muted);
    font-size: 1.05rem;
}

.result-main-time {
    background: var(--primary-soft);
    border: 2px solid #93c5fd;
    border-radius: var(--radius-md);
    padding: 1.15rem 1.5rem;
    max-width: 340px;
    margin: 0 auto 1.5rem auto;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.result-time-label {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary-hover);
}

.result-time-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text);
    line-height: 1.15;
}

.result-pace {
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 600;
}

.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.9rem;
    margin: 1.25rem 0;
    text-align: left;
}

.comp-card {
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.95rem 1.1rem;
}

.comp-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.comp-val {
    display: block;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
}

.comp-diff {
    display: inline-block;
    margin-top: 0.25rem;
    font-size: 0.82rem;
    font-weight: 700;
}

.comp-diff.positive {
    color: var(--success);
}

.comp-diff.negative {
    color: #d97706;
}

.tricky-section {
    background: var(--accent-soft);
    border: 1px solid #fcd34d;
    border-radius: var(--radius-sm);
    padding: 1rem;
    max-width: 560px;
    margin: 1.25rem auto;
}

.tricky-section h3 {
    margin: 0 0 0.6rem 0;
    font-size: 0.95rem;
    color: #92400e;
}

.tricky-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.tricky-badge {
    background: #fff;
    border: 1px solid #fbbf24;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.92rem;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: 0.85rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* History & Chart */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid var(--border);
}

.filter-bar .select-input {
    max-width: 300px;
}

.chart-wrapper {
    margin: 1.5rem 0;
}

.chart-title {
    font-size: 1rem;
    margin: 0 0 0.75rem 0;
}

.chart-container {
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    overflow-x: auto;
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 0.65rem;
    min-height: 170px;
    padding-top: 1.5rem;
}

.bar-col {
    flex: 1;
    min-width: 48px;
    max-width: 76px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
}

.bar-time {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.bar-visual {
    width: 100%;
    background: var(--primary);
    border-radius: 6px 6px 0 0;
    min-height: 14px;
    transition: height 0.25s ease;
}

.bar-visual.is-best {
    background: var(--success);
}

.bar-visual.is-latest {
    outline: 2px solid var(--text);
}

.bar-label {
    font-size: 0.74rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Attempts Table */
.attempts-table-wrapper {
    margin-top: 1.25rem;
    overflow-x: auto;
}

.attempts-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.attempts-table th,
.attempts-table td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--border);
}

.attempts-table th {
    background: var(--surface-soft);
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.82rem;
    text-transform: uppercase;
}

.badge-record {
    display: inline-block;
    background: var(--success-soft);
    color: var(--success);
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    margin-left: 0.35rem;
}

.muted-text {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 1rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .quiz-stage-card {
        padding: 1.25rem 1rem;
    }
    .answer-input {
        width: 110px;
        height: 64px;
    }
}