/**
 * Brain Assessment Suite — Unified Design System
 *
 * Single source of truth for the frontend look & feel.
 * Loaded LAST so it wins over the per-test structural stylesheets.
 * Merges the former bas-responsive.css and bas-theme.css layers and
 * skins every component of every test with one light, professional
 * pattern.
 *
 * @since 3.3.0
 */

/* ============================================================
   1. DESIGN TOKENS
   ============================================================ */
:root {
    --bas-primary: #2563eb;
    --bas-primary-dark: #1d4ed8;
    --bas-primary-light: #3b82f6;
    --bas-primary-soft: #eff6ff;
    --bas-bg: #f5f7fa;
    --bas-surface: #ffffff;
    --bas-surface-2: #f8fafc;
    --bas-border: #e2e8f0;
    --bas-text: #1e293b;
    --bas-text-soft: #475569;
    --bas-text-muted: #64748b;
    --bas-success: #16a34a;
    --bas-success-soft: #f0fdf4;
    --bas-danger: #dc2626;
    --bas-danger-soft: #fef2f2;
    --bas-warning: #d97706;
    --bas-warning-soft: #fffbeb;
    --bas-radius: 12px;
    --bas-radius-sm: 8px;
    --bas-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 14px rgba(15, 23, 42, 0.05);
}

/* ============================================================
   2. PAGE SHELLS — centered column on every screen
   ============================================================ */
.bas-test-suite,
.bas-test-container,
.bas-front-page,
.bas-auth-box,
.bas-candidate-dashboard,
.bas-employer-dashboard {
    width: 100%;
    max-width: 1100px;
    /*margin-left: auto !important;
    margin-right: auto !important;*/
    padding-left: clamp(8px, 3vw, 24px);
    padding-right: clamp(8px, 3vw, 24px);
    box-sizing: border-box;
    background: transparent !important;
    color: var(--bas-text);
    float: none !important;
}

.bas-test-suite *,
.bas-test-container *,
.bas-candidate-dashboard *,
.bas-employer-dashboard * {
    box-sizing: border-box;
    max-width: 100%;
}

/* Typography */
.bas-test-suite h1, .bas-front-page h1 { font-size: clamp(1.4rem, 4.5vw, 2.2rem); }
.bas-test-suite h2, .bas-front-page h2 { font-size: clamp(1.2rem, 3.5vw, 1.7rem); }
.bas-test-suite h3 { font-size: clamp(1.05rem, 3vw, 1.3rem); }
.bas-test-suite h1, .bas-test-suite h2, .bas-test-suite h3, .bas-test-suite h4,
.bas-test-container h1, .bas-test-container h2, .bas-test-container h3, .bas-test-container h4,
.bas-front-page h1, .bas-front-page h2, .bas-front-page h3,
.bas-auth-box h2 {
    color: var(--bas-text);
}

.bas-title { color: var(--bas-primary) !important; }
.bas-description, .bas-test-desc, .bas-section-description { color: var(--bas-text-muted) !important; }

/* ============================================================
   3. SHARED CARD PATTERN
   ============================================================ */
.bas-test-card,
.bas-welcome,
.bas-stat-card,
.bas-feature-card,
.bas-auth-box,
.bas-dashboard-section,
.stat-card,
.info-card,
.jlt-card,
.ha-info-box, .ha-hud-item, .ha-result-stat, .ha-instructions-box,
.click-dots-info-box, .click-dots-instructions-box,
.bas-about-section, .bas-message-box {
    background: var(--bas-surface) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius) !important;
    box-shadow: var(--bas-shadow);
    color: var(--bas-text);
}

.bas-test-card:hover {
    border-color: var(--bas-primary) !important;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.14);
}

.bas-welcome {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%) !important;
    text-align: center;
}

/* Info / stat internals */
.stat-card .stat-number, .stat-card .stat-value,
.bas-stat-card .stat-value, .ha-result-stat .ha-result-stat-value,
.stat-percentage {
    color: var(--bas-primary) !important;
    font-weight: 800;
}

.stat-card .stat-label, .stat-label, .info-label,
.ha-result-stat-label, .info-box-label, .detail-label {
    color: var(--bas-text-muted) !important;
}

.stat-value, .stat-number, .info-value, .info-box-value, .detail-value {
    color: var(--bas-text);
}

/* Welcome info boxes used by click-dots / japanese / handling tests */
.click-dots-info-box .info-box-value,
.ha-info-value { color: var(--bas-text) !important; font-weight: 700; }
.click-dots-info-box .info-box-label,
.ha-info-label { color: var(--bas-text-muted) !important; }

/* Instructions / about / disclaimer boxes: white card + blue accent bar */
.test-instructions, .start-info, .results-message,
.interpretation-box, .message-box,
.click-dots-instructions-box, .ha-instructions-box,
.bas-about-section, .ishihara-disclaimer {
    background: var(--bas-surface) !important;
    border: 1px solid var(--bas-border) !important;
    border-left: 4px solid var(--bas-primary) !important;
    border-radius: var(--bas-radius-sm) !important;
    color: var(--bas-text-soft) !important;
    text-align: left;
}

.test-disclaimer {
    background: var(--bas-warning-soft) !important;
    border: 1px solid #fcd34d !important;
    border-left: 4px solid var(--bas-warning) !important;
    border-radius: var(--bas-radius-sm) !important;
    color: #92400e !important;
    text-align: left;
}

.test-instructions li, .click-dots-instructions-box li, .ha-instructions-box li,
.bas-about-section p, .interpretation-box p {
    color: var(--bas-text-soft) !important;
}

.test-instructions h3, .click-dots-instructions-box h3, .ha-instructions-box h3,
.bas-about-title {
    color: var(--bas-text) !important;
}

/* ============================================================
   4. BUTTONS — one system
   ============================================================ */
/* Primary */
.bas-start-test, .bas-btn-primary, .start-btn,
.ha-start-button, .click-dots-start-button,
.jlt-btn-primary, .btn.btn-primary,
.bas-button-primary {
    background: linear-gradient(135deg, var(--bas-primary) 0%, var(--bas-primary-dark) 100%) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: var(--bas-radius-sm) !important;
    font-weight: 600;
    letter-spacing: 0.03em;
    cursor: pointer;
    min-height: 44px;
    touch-action: manipulation;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.bas-start-test:hover, .bas-btn-primary:hover, .start-btn:hover,
.ha-start-button:hover, .click-dots-start-button:hover,
.jlt-btn-primary:hover, .btn.btn-primary:hover, .bas-button-primary:hover {
    background: linear-gradient(135deg, var(--bas-primary-light) 0%, var(--bas-primary) 100%) !important;
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3);
}

/* Secondary / neutral */
.bas-btn:not(.bas-btn-primary), .bas-back-to-tests,
.secondary-btn, .jlt-btn-secondary {
    background: var(--bas-surface) !important;
    color: var(--bas-text-soft) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius-sm) !important;
    cursor: pointer;
    min-height: 44px;
    touch-action: manipulation;
}

.bas-btn:not(.bas-btn-primary):hover, .bas-back-to-tests:hover,
.secondary-btn:hover, .jlt-btn-secondary:hover {
    border-color: var(--bas-primary) !important;
    color: var(--bas-primary) !important;
    background: var(--bas-primary-soft) !important;
}

/* Danger (end test) */
.end-btn, .control-btn.end-btn {
    background: var(--bas-danger) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: var(--bas-radius-sm) !important;
}

.end-btn:hover { background: #b91c1c !important; color: #ffffff !important; }

/* Primary action inside results (try again / restart) */
.primary-btn, #restart-test, #handling-accuracy-restart-btn {
    background: linear-gradient(135deg, var(--bas-primary) 0%, var(--bas-primary-dark) 100%) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: var(--bas-radius-sm) !important;
    font-weight: 700;
    cursor: pointer;
    min-height: 44px;
}

.primary-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3); }

/* Ishihara numpad */
.numpad-btn {
    background: var(--bas-surface) !important;
    color: var(--bas-text) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius-sm) !important;
    font-weight: 700;
    cursor: pointer;
}

.numpad-btn:hover { border-color: var(--bas-primary) !important; background: var(--bas-primary-soft) !important; }

.numpad-btn.special {
    background: var(--bas-primary) !important;
    color: #ffffff !important;
    border-color: var(--bas-primary) !important;
}

/* Calculation answer grid */
.answer-grid .answer-btn {
    background: var(--bas-surface) !important;
    color: var(--bas-text) !important;
    border: 2px solid var(--bas-border) !important;
    border-radius: var(--bas-radius-sm) !important;
    font-weight: 700;
    cursor: pointer;
}

.answer-grid .answer-btn:hover {
    border-color: var(--bas-primary) !important;
    background: var(--bas-primary-soft) !important;
}

/* ============================================================
   5. VISUAL COMPARISON — readable options (SAME / DIFFERENT)
   ============================================================ */
.comparison-container .string-box {
    background: var(--bas-surface) !important;
    border: 2px solid var(--bas-border) !important;
    border-radius: var(--bas-radius) !important;
}

.string-display {
    color: var(--bas-text) !important;
    font-family: 'Courier New', monospace;
    font-weight: 700;
}

.string-label { color: var(--bas-text-muted) !important; }
.vs-separator { color: var(--bas-primary) !important; background: transparent !important; }

/* Option buttons: white surface, strong colored border, dark readable text */
.answer-buttons .answer-btn {
    border-radius: var(--bas-radius) !important;
    font-weight: 700;
    cursor: pointer;
}

.answer-buttons .same-btn {
    background: var(--bas-surface) !important;
    border: 3px solid var(--bas-success) !important;
    color: #14532d !important;
}

.answer-buttons .same-btn:hover,
.answer-buttons .same-btn.selected {
    background: var(--bas-success) !important;
    color: #ffffff !important;
    border-color: var(--bas-success) !important;
}

.answer-buttons .different-btn {
    background: var(--bas-surface) !important;
    border: 3px solid var(--bas-danger) !important;
    color: #7f1d1d !important;
}

.answer-buttons .different-btn:hover,
.answer-buttons .different-btn.selected {
    background: var(--bas-danger) !important;
    color: #ffffff !important;
    border-color: var(--bas-danger) !important;
}

.answer-buttons .btn-icon, .answer-buttons .btn-text { color: inherit !important; }

/* Comparison result rows */
.result-item, .result-details {
    background: var(--bas-surface) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius-sm);
    color: var(--bas-text);
}

.correct-text { color: var(--bas-success) !important; }
.wrong-text { color: var(--bas-danger) !important; }

/* ============================================================
   6. HEADERS / TIMERS / PROGRESS — during tests
   ============================================================ */
.question-header, .calculation-header, .number-search-header,
.ishihara-header, .bas-stats-bar {
    background: var(--bas-surface) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius) !important;
    color: var(--bas-text) !important;
    box-shadow: var(--bas-shadow);
}

.question-title, .timer-text, .progress-text, .progress-info,
.batch-progress, .bas-stat-item {
    color: var(--bas-text-soft) !important;
}

.timer { color: var(--bas-primary) !important; font-weight: 700; }

.progress-bar {
    background: var(--bas-border) !important;
    border-radius: 999px !important;
    overflow: hidden;
}

.progress-fill {
    background: linear-gradient(90deg, var(--bas-primary), var(--bas-primary-light)) !important;
    border-radius: 999px !important;
}

/* Question display (calculation) */
.question-display, .question-area {
    color: var(--bas-text) !important;
}

.question-display .operator, .question-display .equals,
.question-display .question-mark { color: var(--bas-primary) !important; }

/* Number search grid cells */
.number-cell {
    background: var(--bas-surface) !important;
    color: var(--bas-text) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius-sm);
    font-weight: 700;
    cursor: pointer;
}

.number-cell:hover { border-color: var(--bas-primary) !important; background: var(--bas-primary-soft) !important; }
.number-cell.correct { background: var(--bas-success) !important; color: #ffffff !important; border-color: var(--bas-success) !important; }
.number-cell.wrong { background: var(--bas-danger) !important; color: #ffffff !important; border-color: var(--bas-danger) !important; }

.instruction-display {
    border-radius: var(--bas-radius-sm) !important;
    color: #ffffff !important;
    font-weight: 700;
}

/* ============================================================
   7. RESULTS SCREENS — same pattern in every test
   ============================================================ */
.results-header .results-title, .bas-results-title, .ha-results-title,
.results-title { color: var(--bas-text) !important; }

.results-header .results-icon, .bas-results-icon { color: var(--bas-primary); }

.results-stats, .bas-results-stats, .ha-results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr));
    gap: 12px;
}

.pass-message, .success-message, .ha-success-message {
    background: var(--bas-success-soft) !important;
    border: 1px solid var(--bas-success) !important;
    color: #166534 !important;
    border-radius: var(--bas-radius-sm) !important;
    font-weight: 600;
}

.fail-message, .ha-fail-message {
    background: var(--bas-danger-soft) !important;
    border: 1px solid var(--bas-danger) !important;
    color: #991b1b !important;
    border-radius: var(--bas-radius-sm) !important;
    font-weight: 600;
}

/* Status pills (dashboards) */
.bas-status-passed, .bas-status-success {
    background: var(--bas-success-soft) !important;
    color: var(--bas-success) !important;
    border: 1px solid var(--bas-success) !important;
    border-radius: 999px; padding: 3px 12px; font-weight: 600; font-size: 0.85em;
}

.bas-status-failed, .bas-status-error {
    background: var(--bas-danger-soft) !important;
    color: var(--bas-danger) !important;
    border: 1px solid var(--bas-danger) !important;
    border-radius: 999px; padding: 3px 12px; font-weight: 600; font-size: 0.85em;
}

/* ============================================================
   8. JAPANESE TEST WIDGET
   ============================================================ */
.jlt-wrap {
    background: transparent !important;
    color: var(--bas-text) !important;
}

.jlt-card, .jlt-q, .jlt-result .box {
    background: var(--bas-surface) !important;
    border: 1px solid var(--bas-border) !important;
    border-radius: var(--bas-radius) !important;
    color: var(--bas-text) !important;
}

.jlt-title, .jlt-q h3 { color: var(--bas-text) !important; }
.jlt-small { color: var(--bas-text-muted) !important; }

.jlt-badge, .jlt-kpi {
    background: var(--bas-primary-soft) !important;
    color: var(--bas-primary-dark) !important;
    border: 1px solid #dbeafe !important;
    border-radius: 999px;
}

.jlt-chip, .jlt-opt {
    background: var(--bas-surface) !important;
    color: var(--bas-text) !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: var(--bas-radius-sm) !important;
    cursor: pointer;
}

.jlt-chip:hover, .jlt-opt:hover {
    border-color: var(--bas-primary) !important;
    background: var(--bas-primary-soft) !important;
}

.jlt-chip.active, .jlt-opt.active, .jlt-opt.selected {
    background: var(--bas-primary) !important;
    border-color: var(--bas-primary) !important;
    color: #ffffff !important;
}

.jlt-progressbar {
    background: var(--bas-border) !important;
    border-radius: 999px !important;
}

.jlt-progressbar > div, .jlt-progress {
    background: linear-gradient(90deg, var(--bas-primary), var(--bas-primary-light)) !important;
}

/* ============================================================
   9. FORMS / AUTH — centered card design
   ============================================================ */
.bas-auth-box {
    max-width: min(440px, 94vw) !important;
    margin: 40px auto !important;
    padding: clamp(24px, 5vw, 40px) !important;
    text-align: center;
}

.bas-auth-icon {
    font-size: 2.4rem;
    margin-bottom: 6px;
}

.bas-auth-box h2 {
    margin: 0 0 6px;
    font-size: clamp(1.3rem, 4vw, 1.6rem);
}

.bas-auth-subtitle {
    color: var(--bas-text-muted);
    font-size: 0.92rem;
    margin: 0 0 22px;
    line-height: 1.5;
}

.bas-auth-form {
    text-align: left;
}

.bas-auth-form p {
    margin: 0 0 16px;
}

.bas-auth-form label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--bas-text-soft);
    margin-bottom: 4px;
}

.bas-auth-form input:not([type="checkbox"]) {
    display: block;
    width: 100% !important;
    max-width: 100% !important;
    background: var(--bas-surface) !important;
    color: var(--bas-text) !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: var(--bas-radius-sm) !important;
    padding: 10px 14px !important;
    font-size: 16px;
    min-height: 46px;
    margin-top: 6px;
    box-sizing: border-box;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.bas-auth-form input:not([type="checkbox"]):focus {
    border-color: var(--bas-primary) !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

/* Remember-me: checkbox and text on one line */
.bas-remember-row label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--bas-text-soft);
    cursor: pointer;
    margin: 0;
}

.bas-remember-row input[type="checkbox"] {
    width: 18px !important;
    height: 18px !important;
    min-height: 0 !important;
    min-width: 0 !important;
    margin: 0 !important;
    accent-color: var(--bas-primary);
    flex: 0 0 auto;
}

.bas-auth-form button[type="submit"] {
    display: block;
    width: 100% !important;
    padding: 13px 20px !important;
    font-size: 1rem !important;
    margin-top: 4px;
}

.bas-auth-alt-link {
    text-align: center;
    margin: 18px 0 0 !important;
    font-size: 0.92rem;
}

.bas-auth-alt-link a {
    color: var(--bas-primary) !important;
    text-decoration: none;
    font-weight: 600;
}

.bas-auth-alt-link a:hover {
    text-decoration: underline;
}

.bas-alert {
    border-radius: var(--bas-radius-sm);
    padding: 10px 14px;
    margin-bottom: 16px;
    text-align: left;
    font-size: 0.9rem;
}

.bas-alert ul { margin: 0; padding-left: 18px; }

.bas-alert-error {
    background: var(--bas-danger-soft);
    border: 1px solid var(--bas-danger);
    color: #991b1b;
}

.bas-alert-success {
    background: var(--bas-success-soft);
    border: 1px solid var(--bas-success);
    color: #166534;
}

.bas-user-greeting {
    background: var(--bas-primary-soft) !important;
    border: 1px solid #dbeafe;
    border-radius: var(--bas-radius-sm);
}

.bas-user-greeting strong { color: var(--bas-primary) !important; }

/* Honeypot */
.bas-hp-field { position: absolute !important; left: -9999px !important; top: -9999px !important; height: 0; overflow: hidden; }

/* ============================================================
   10. TABLES
   ============================================================ */
.bas-results-table-wrapper, .bas-table-scroll {
    width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;
}

.bas-results-table {
    min-width: 560px; width: 100%;
    background: var(--bas-surface);
    border: 1px solid var(--bas-border);
    border-radius: var(--bas-radius);
    border-collapse: separate; border-spacing: 0; overflow: hidden;
}

.bas-results-table th {
    background: var(--bas-surface-2) !important;
    color: var(--bas-text-soft) !important;
    font-weight: 600; text-align: left; padding: 12px 14px;
    border-bottom: 1px solid var(--bas-border);
}

.bas-results-table td {
    padding: 11px 14px;
    border-bottom: 1px solid #eef2f7;
    color: var(--bas-text);
    background: var(--bas-surface) !important;
}

.bas-results-table tr:last-child td { border-bottom: none; }
.bas-results-table tr:hover td { background: var(--bas-surface-2) !important; }

/* ============================================================
   11. GRIDS & LAYOUT
   ============================================================ */
.bas-test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr));
    gap: clamp(10px, 2vw, 20px);
}

.bas-test-card { width: auto; min-width: 0; }

.bas-stats-grid, .bas-feature-grid, .info-grid,
.click-dots-info-boxes, .bas-features-grid {
    display: grid!important;
    grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
    gap: clamp(8px, 2vw, 16px);
}

/* Test container = focused white panel */
.bas-test-container {
    background: var(--bas-surface) !important;
    border: 1px solid var(--bas-border);
    border-radius: var(--bas-radius);
    box-shadow: var(--bas-shadow);
    padding: clamp(14px, 3vw, 28px);
    scroll-margin-top: 20px;
}

/* Canvas tests */
.bas-test-container canvas {
    max-width: 100%;
    display: block;
    margin: 0 auto;
    touch-action: none;
}

#handling-accuracy-canvas, #click-dots-canvas {
    border: 2px solid var(--bas-border);
    border-radius: var(--bas-radius);
    background: #ffffff;
}

/* Welcome screens centered */
.calculation-start-screen, .number-search-start-screen,
.ishihara-start-wrap, .ha-welcome-screen,
#click-dots-welcome-screen, #jlt-welcome-screen {
    text-align: center;
}

/* Touch targets */
.bas-test-suite button, .bas-test-container button, .bas-btn,
.bas-start-test, .bas-auth-form button {
    min-height: 44px; min-width: 44px; touch-action: manipulation;
}

.bas-test-container input, .bas-test-container select { font-size: 16px; }

/* ============================================================
   12. LANGUAGE SWITCHER
   ============================================================ */
.bas-lang-switcher {
    display: flex !important;   /* guard against theme nav resets */
    visibility: visible !important;
    justify-content: flex-end; gap: 6px;
    margin: 8px auto; max-width: 1100px;
    padding: 0 clamp(8px, 3vw, 24px);
}

.bas-lang-switcher button {
    display: inline-block !important;
}

.bas-lang-switcher button {
    border: 1px solid #cbd5e1; background: var(--bas-surface);
    color: var(--bas-text-soft);
    border-radius: 999px; padding: 6px 14px;
    min-height: 36px; min-width: 44px; font-size: 0.85rem;
    cursor: pointer; line-height: 1;
}

.bas-lang-switcher button.active {
    background: var(--bas-primary); border-color: var(--bas-primary);
    color: #ffffff; font-weight: 600;
}

.bas-lang-switcher button:focus-visible { outline: 2px solid var(--bas-primary); outline-offset: 2px; }

.bas-lang-switcher .bas-logout-btn {
    display: inline-flex !important;
    align-items: center;
    margin-left: 10px;
    border: 1px solid var(--bas-danger);
    background: var(--bas-surface);
    color: var(--bas-danger) !important;
    border-radius: 999px;
    padding: 6px 16px;
    min-height: 36px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none !important;
    line-height: 1;
    cursor: pointer;
}

.bas-lang-switcher .bas-logout-btn:hover {
    background: var(--bas-danger);
    color: #ffffff !important;
}

/* Admin toolbar on the frontend dashboard */
.bas-admin-toolbar {
    max-width: 1100px;
    margin: 0 auto 12px;
    padding: 0 clamp(8px, 3vw, 24px);
    display: flex;
    justify-content: flex-end;
}

.bas-admin-toolbar .bas-wp-admin-btn {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    padding: 8px 18px !important;
    font-weight: 600;
    text-decoration: none !important;
}

/* Locked test (retake policy) */
.bas-test-locked {
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    border-radius: var(--bas-radius-sm);
    color: var(--bas-text-muted);
    font-weight: 600;
    text-align: center;
    padding: 12px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* ============================================================
   13. ERROR STATE
   ============================================================ */
.bas-error-message {
    background: var(--bas-danger-soft) !important;
    border: 1px solid var(--bas-danger) !important;
    color: var(--bas-danger) !important;
    border-radius: var(--bas-radius);
}

/* ============================================================
   14. RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .bas-test-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .bas-test-suite, .bas-test-container { padding-left: 8px; padding-right: 8px; }
    .bas-test-meta { flex-wrap: wrap; gap: 6px; }
    .bas-hero-actions { display: flex; flex-direction: column; gap: 10px; }
    .bas-hero-actions .bas-btn { width: 100%; text-align: center; }
    .bas-dashboard-header { flex-direction: column; align-items: flex-start; gap: 10px; }
    .bas-lang-switcher { justify-content: center; }
    .bas-test-container table td, .bas-test-container table th { padding: 6px 8px; font-size: 0.85rem; }
    .answer-buttons { grid-template-columns: 1fr !important; }
}

@media (max-height: 480px) and (orientation: landscape) {
    .bas-test-container { padding-top: 6px; padding-bottom: 6px; }
}

/* ============================================================
   15. JAPANESE LISTENING TEST
   ============================================================ */
.japanese-listening-test-container {
    max-width: 720px;
    margin: 0 auto;
}

.blt-play-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 18px auto 10px;
    padding: 16px 34px;
    font-size: 1.05rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--bas-primary) 0%, var(--bas-primary-dark) 100%) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: 999px !important;
    cursor: pointer;
    min-height: 52px;
    touch-action: manipulation;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.blt-play-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3); }

.blt-play-btn.blt-playing {
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%) !important;
    animation: blt-pulse 1s ease-in-out infinite;
}

@keyframes blt-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.35); }
    50% { box-shadow: 0 0 0 12px rgba(22, 163, 74, 0); }
}

.blt-question-text {
    margin: 14px 0;
    color: var(--bas-text);
    font-size: clamp(1rem, 3vw, 1.2rem);
}

.blt-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    max-width: 520px;
    margin: 0 auto;
}

.blt-option {
    padding: 14px 16px !important;
    font-size: 1rem;
    text-align: center;
    min-height: 50px;
}

.blt-option.blt-correct {
    background: var(--bas-success) !important;
    border-color: var(--bas-success) !important;
    color: #ffffff !important;
}

.blt-option.blt-wrong {
    background: var(--bas-danger) !important;
    border-color: var(--bas-danger) !important;
    color: #ffffff !important;
}

/* ============================================================
   16. JAPANESE SPEAKING TEST
   ============================================================ */
.japanese-speaking-test-container {
    max-width: 720px;
    margin: 0 auto;
}

.bst-question-card {
    background: var(--bas-surface);
    border: 1px solid var(--bas-border);
    border-radius: var(--bas-radius);
    box-shadow: var(--bas-shadow);
    padding: clamp(14px, 3vw, 24px);
    max-width: 560px;
    margin: 14px auto;
}

.bst-record-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 12px auto 6px;
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--bas-primary) 0%, var(--bas-primary-dark) 100%) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: 999px !important;
    cursor: pointer;
    min-height: 56px;
    touch-action: manipulation;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.bst-record-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3); }

.bst-record-btn.bst-recording {
    background: linear-gradient(135deg, var(--bas-danger) 0%, #b91c1c 100%) !important;
    animation: bst-pulse 1s ease-in-out infinite;
}

@keyframes bst-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.35); }
    50% { box-shadow: 0 0 0 14px rgba(220, 38, 38, 0); }
}