/* ═══════════════════════════════════════════════════════════════════════════
   Тест Векслера — Стили интерфейса
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --primary: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --success: #059669;
    --success-bg: #d1fae5;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --info: #2563eb;
    --info-bg: #dbeafe;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
    --shadow-lg: 0 4px 24px rgba(0,0,0,.1);
    --transition: .2s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ─── Layout ────────────────────────────────────────────────────────────── */

.app-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

header.app-header {
    text-align: center;
    margin-bottom: 32px;
    padding: 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

header.app-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

header.app-header p {
    font-size: 0.9rem;
    opacity: 0.85;
}

/* ─── Cards ─────────────────────────────────────────────────────────────── */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

/* ─── Forms ─────────────────────────────────────────────────────────────── */

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--text);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: border-color var(--transition);
    background: #fff;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

/* ─── Buttons ───────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover:not(:disabled) {
    background: #047857;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline:hover:not(:disabled) {
    background: var(--primary);
    color: #fff;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-lg {
    padding: 14px 36px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

/* ─── Welcome Screen ────────────────────────────────────────────────────── */

#welcome-screen .info-block {
    background: var(--info-bg);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: #1e40af;
}

#welcome-screen .info-block strong {
    display: block;
    margin-bottom: 4px;
}

/* ─── Progress Bar ──────────────────────────────────────────────────────── */

.progress-container {
    margin-bottom: 24px;
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 4px;
    transition: width 0.4s ease;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ─── Subtest Navigation ────────────────────────────────────────────────── */

.subtest-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.subtest-nav .nav-item {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 2px solid var(--border);
    background: #fff;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.subtest-nav .nav-item:hover {
    border-color: var(--primary-light);
}

.subtest-nav .nav-item.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.subtest-nav .nav-item.completed {
    background: var(--success-bg);
    color: var(--success);
    border-color: var(--success);
}

.subtest-nav .nav-item.completed.active {
    background: var(--success);
    color: #fff;
}

.nav-item .check-icon {
    font-size: 0.75rem;
}

/* ─── Instructions Block ────────────────────────────────────────────────── */

.instructions-block {
    background: var(--info-bg);
    border-left: 4px solid var(--info);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.instructions-block strong {
    display: block;
    margin-bottom: 4px;
    color: #1e40af;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ─── Question Card ─────────────────────────────────────────────────────── */

.question-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
    transition: all var(--transition);
}

.question-card.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.question-card.answered-correct {
    border-color: var(--success);
    background: #f0fdf4;
}

.question-card.answered-partial {
    border-color: var(--warning);
    background: #fffbeb;
}

.question-card.answered-zero {
    border-color: var(--danger);
    background: #fef2f2;
}

.question-card .question-number {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 12px;
    margin-bottom: 12px;
}

.question-card .question-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

/* ─── Audio Player ──────────────────────────────────────────────────────── */

.audio-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
    color: #fff;
    border: none;
    border-radius: 24px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: 16px;
}

.audio-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(109, 40, 217, 0.35);
}

.audio-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    background: #94a3b8;
}

.audio-btn.playing {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    animation: pulse-audio 1.5s ease-in-out infinite;
}

@keyframes pulse-audio {
    0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(220, 38, 38, 0); }
}

.audio-btn .audio-icon {
    font-size: 1.1rem;
}

.audio-missing {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--warning-bg);
    color: var(--warning);
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 16px;
}

/* ─── Score Buttons ─────────────────────────────────────────────────────── */

.score-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.score-row .score-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 60px;
}

.score-btn {
    width: 44px;
    height: 44px;
    border: 2px solid var(--border);
    border-radius: 50%;
    font-size: 1.1rem;
    font-weight: 700;
    background: #fff;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.score-btn:hover {
    transform: scale(1.1);
}

.score-btn.score-0:hover, .score-btn.score-0.selected {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.score-btn.score-1:hover, .score-btn.score-1.selected {
    background: var(--warning-bg);
    border-color: var(--warning);
    color: var(--warning);
}

.score-btn.score-2:hover, .score-btn.score-2.selected {
    background: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
}

.score-btn.selected {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

/* ─── Timer ─────────────────────────────────────────────────────────────── */

.timer-display {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.timer-display.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.timer-display.danger {
    background: var(--danger-bg);
    color: var(--danger);
    animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
    50% { opacity: 0.5; }
}

/* ─── Criteria Tooltip ──────────────────────────────────────────────────── */

.criteria-block {
    margin-top: 12px;
    padding: 12px 16px;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.criteria-block summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--primary);
    user-select: none;
}

.criteria-block[open] summary {
    margin-bottom: 8px;
}

/* ─── Digit Span ────────────────────────────────────────────────────────── */

.digit-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}

.digit-section-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.digit-group {
    margin-bottom: 24px;
}

.digit-group .group-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.digit-sequence-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    transition: all var(--transition);
}

.digit-sequence-card.correct {
    border-color: var(--success);
    background: #f0fdf4;
}

.digit-sequence-card.incorrect {
    border-color: var(--danger);
    background: #fef2f2;
}

.digit-sequence-card .seq-num {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    min-width: 20px;
}

.digit-sequence-card .digits-display {
    flex: 1;
    font-size: 1.2rem;
    font-weight: 600;
    font-family: 'Courier New', monospace;
    letter-spacing: 4px;
    color: var(--text);
}

/* ─── Results Page ──────────────────────────────────────────────────────── */

.results-header {
    text-align: center;
    margin-bottom: 32px;
}

.results-header .iq-score {
    display: inline-block;
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.results-header .iq-label {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.results-header .classification-badge {
    display: inline-block;
    padding: 6px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.95rem;
    color: #fff;
    margin-top: 8px;
}

.results-header .percentile-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
}

.results-table th,
.results-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.results-table th {
    background: var(--bg);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.results-table td {
    font-size: 0.95rem;
}

.results-table .score-cell {
    font-weight: 700;
    font-size: 1.1rem;
}

.results-table .interpretation-cell {
    font-size: 0.85rem;
}

.interp-strong {
    color: var(--success);
    font-weight: 600;
}

.interp-normal {
    color: var(--text-secondary);
}

.interp-weak {
    color: var(--danger);
    font-weight: 600;
}

/* ─── Profile Chart (Canvas) ────────────────────────────────────────────── */

.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}

.chart-container h3 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.chart-container canvas {
    width: 100% !important;
    max-height: 350px;
}

/* ─── Interpretation Block ──────────────────────────────────────────────── */

.interpretation-card {
    padding: 20px 24px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.95rem;
    line-height: 1.7;
}

.interp-info {
    background: var(--info-bg);
    border-left: 4px solid var(--info);
}

.interp-warning {
    background: var(--warning-bg);
    border-left: 4px solid var(--warning);
}

.interp-success {
    background: var(--success-bg);
    border-left: 4px solid var(--success);
}

.interp-danger {
    background: var(--danger-bg);
    border-left: 4px solid var(--danger);
}

/* ─── Navigation Buttons ────────────────────────────────────────────────── */

.nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ─── Hidden ────────────────────────────────────────────────────────────── */

.hidden {
    display: none !important;
}

/* ─── Discontinue Banner ────────────────────────────────────────────────── */

.discontinue-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--warning-bg);
    border-radius: var(--radius-sm);
    color: var(--warning);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

/* ─── Responsive ────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
    .app-container {
        padding: 16px 12px 40px;
    }

    header.app-header h1 {
        font-size: 1.3rem;
    }

    .card {
        padding: 18px 16px;
    }

    .question-card {
        padding: 18px 16px;
    }

    .score-row {
        gap: 8px;
    }

    .score-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .nav-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .subtest-nav {
        gap: 6px;
    }

    .subtest-nav .nav-item {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .matrix-choices {
        grid-template-columns: repeat(3, 1fr) !important;
    }

    .coding-grid {
        grid-template-columns: repeat(5, 1fr) !important;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   VISUAL SUBTESTS — Block Design, Coding, Symbol Search, Mazes, Matrices
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Block Design ─────────────────────────────────────────────────────── */
.block-pattern {
    display: inline-grid;
    gap: 3px;
    padding: 8px;
    background: #f1f5f9;
    border-radius: 8px;
    margin-bottom: 8px;
}

.block-cell {
    width: 52px;
    height: 52px;
    border-radius: 6px;
    border: 2px solid #e2e8f0;
    transition: all 0.15s;
}

.block-cell.worker {
    cursor: pointer;
}

.block-cell.worker:hover {
    transform: scale(1.08);
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

/* ─── Coding ─────────────────────────────────────────────────────────────── */
.coding-key {
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 20px;
}

.coding-key-title {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 10px;
    text-align: center;
}

.coding-key-row {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.coding-key-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    background: #fff;
    border-radius: 6px;
    border: 1px solid var(--border);
    min-width: 50px;
}

.coding-num {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
}

.coding-sym {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 600;
}

.coding-timer-bar {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 800;
    padding: 10px;
    margin-bottom: 12px;
    border-radius: 8px;
    background: var(--info-bg);
    color: var(--info);
}

.coding-timer-bar.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.coding-timer-bar.danger {
    background: var(--danger-bg);
    color: var(--danger);
    animation: blink 1s ease-in-out infinite;
}

.coding-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    max-width: 500px;
    margin: 0 auto 16px;
}

.coding-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.coding-cell-num {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.coding-input {
    width: 40px;
    height: 40px;
    text-align: center;
    font-size: 1.2rem;
    border: 2px solid var(--border);
    border-radius: 6px;
    outline: none;
    transition: border-color var(--transition);
}

.coding-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.15);
}

.coding-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.coding-score-display {
    font-size: 1rem;
    color: var(--text-secondary);
}

.coding-workspace {
    padding: 16px;
    background: var(--bg);
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

/* ─── Symbol Search ────────────────────────────────────────────────────── */
.ssearch-workspace {
    padding: 16px;
    background: var(--bg);
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.ssearch-trial {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}

.ssearch-trial:last-child {
    border-bottom: none;
}

.ssearch-target {
    display: flex;
    gap: 6px;
    min-width: 80px;
}

.ssearch-search {
    display: flex;
    gap: 6px;
    flex: 1;
}

.ssearch-symbol {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    font-size: 1.3rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.ssearch-symbol.target-sym {
    background: var(--info-bg);
    border-color: var(--info);
    font-weight: 700;
}

.ssearch-buttons {
    display: flex;
    gap: 6px;
}

.ssearch-btn {
    padding: 6px 14px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    background: #fff;
    cursor: pointer;
    transition: all var(--transition);
}

.ssearch-btn.yes-btn:hover, .ssearch-btn.yes-btn.selected {
    background: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
}

.ssearch-btn.no-btn:hover, .ssearch-btn.no-btn.selected {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

/* ─── Mazes ──────────────────────────────────────────────────────────────── */
.maze-container {
    display: flex;
    justify-content: center;
    margin: 12px auto;
}

.maze-container canvas {
    border: 2px solid var(--border);
    border-radius: 6px;
    cursor: crosshair;
    touch-action: none;
    max-width: 100%;
}

/* ─── Matrices ───────────────────────────────────────────────────────────── */
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    max-width: 300px;
    margin: 0 auto 20px;
}

.matrix-cell {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 8px;
}

.matrix-cell.missing {
    background: var(--warning-bg);
    border-color: var(--warning);
    border-style: dashed;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--warning);
}

.matrix-choices {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    max-width: 500px;
    margin: 0 auto;
}

.matrix-choice {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition);
    background: #fff;
}

.matrix-choice:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,.08);
}

.matrix-choice.selected {
    border-color: var(--primary);
    background: #eef2ff;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.matrix-choice.correct-choice {
    border-color: var(--success);
    background: var(--success-bg);
}

.choice-letter {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
}

/* ─── Scale labels in nav ──────────────────────────────────────────────── */
.subtest-nav .nav-item[data-scale="performance"] {
    border-color: #f97316;
    color: #ea580c;
}

.subtest-nav .nav-item[data-scale="performance"].active {
    background: #f97316;
    color: #fff;
    border-color: #f97316;
}

.subtest-nav .nav-item[data-scale="performance"].completed {
    background: #fff7ed;
    border-color: #fb923c;
    color: #ea580c;
}