/* Test Mode - Comprehensive test interface */

.test-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    min-height: calc(100vh - var(--navbar-height));
}

/* Inside the sidebar layout the outer container controls height */
.study-center-column .test-container {
    min-height: auto;
    padding-top: 0;
}

.test-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
}

.test-title {
    color: var(--color-secondary);
    font-size: var(--font-size-xl);
    margin: 0;
}

.test-questions-container {
    margin-bottom: var(--spacing-xl);
}

.test-question {
    background: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.test-question-number {
    color: #4CAF50;
    font-weight: 600;
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-sm);
}

.test-question-text {
    color: var(--color-secondary);
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.multiple-answer-hint {
    color: #FFC107;
    font-size: var(--font-size-sm);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 193, 7, 0.1);
    border-left: 3px solid #FFC107;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.test-answers-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.test-answer-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease;
}

.test-answer-option:hover {
    background: rgba(255, 255, 255, 0.05);
}

.test-answer-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--color-secondary);
    cursor: pointer;
}

.test-answer-option label {
    color: var(--color-secondary);
    font-size: var(--font-size-md);
    cursor: pointer;
    flex: 1;
    line-height: 1.3;
}

.test-submit-container {
    text-align: center;
    padding: var(--spacing-xl) 0;
    border-top: 2px solid var(--color-border);
}

.test-total-timer {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 0.04em;
    padding: 4px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.04);
    white-space: nowrap;
}

.test-total-timer.timer-warning {
    color: #e53e3e;
    border-color: #e53e3e;
    animation: timerPulse 1s ease-in-out infinite;
}

@keyframes timerPulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.55; }
}

.test-submit-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    min-width: 200px;
}

/* Test Results */
.test-results-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    min-height: calc(100vh - var(--navbar-height));
}

.test-results-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.test-results-title {
    color: var(--color-secondary);
    font-size: var(--font-size-xxl);
    margin: 0;
}

.test-score-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.test-score-display {
    margin-bottom: var(--spacing-lg);
}

.score-percentage {
    font-size: 4rem;
    font-weight: bold;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.score-fraction {
    font-size: var(--font-size-lg);
    color: #999;
}

.performance-message {
    font-size: var(--font-size-lg);
    font-weight: 600;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.performance-message.excellent {
    background: rgba(76, 175, 80, 0.2);
    color: #4CAF50;
}

.performance-message.great {
    background: rgba(33, 150, 243, 0.2);
    color: #2196F3;
}

.performance-message.good {
    background: rgba(255, 193, 7, 0.2);
    color: #FFC107;
}

.performance-message.needs-work {
    background: rgba(244, 67, 54, 0.2);
    color: #F44336;
}

.test-breakdown-section {
    margin-bottom: var(--spacing-xl);
}

.breakdown-title {
    color: var(--color-secondary);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.test-result-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    align-items: flex-start;
}

.test-result-item.correct {
    background: rgba(76, 175, 80, 0.1);
    border-color: #4CAF50;
}

.test-result-item.incorrect {
    background: rgba(244, 67, 54, 0.1);
    border-color: #F44336;
}

.result-question-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--color-primary);
}

.test-result-item.correct .result-question-num {
    background: #4CAF50;
}

.test-result-item.incorrect .result-question-num {
    background: #F44336;
}

.result-question-content {
    flex: 1;
}

.result-question-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.result-question-text {
    flex: 1;
    color: var(--color-secondary);
    font-size: var(--font-size-md);
    font-weight: 500;
    margin-right: var(--spacing-sm);
}

.result-star-container {
    flex-shrink: 0;
}

.result-star {
    font-size: 18px;
    color: #999;
    cursor: pointer;
    transition: color 0.2s ease;
    user-select: none;
    padding: var(--spacing-xs);
}

.result-star:hover {
    color: #ffd700;
    transform: scale(1.1);
}

.result-answer-info {
    flex: 1;
}

.result-status {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.test-result-item.correct .result-status {
    color: #4CAF50;
}

.test-result-item.incorrect .result-status {
    color: #F44336;
}

.result-answers {
    font-size: var(--font-size-sm);
    color: #999;
}

.result-answers > div {
    margin-bottom: var(--spacing-xs);
}

/* Matching & Reorder visual result tables */
.result-match-table,
.result-reorder-table {
    margin-top: var(--spacing-sm);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
}

.result-match-header-row,
.result-reorder-header-row,
.result-match-row,
.result-reorder-row {
    display: grid;
    grid-template-columns: 28px 1fr 1fr 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    align-items: center;
}

.result-match-header-row,
.result-reorder-header-row {
    background: var(--color-tertiary, rgba(255,255,255,0.05));
    color: #999;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.result-match-row,
.result-reorder-row {
    border-top: 1px solid var(--color-border);
}

.result-pair-correct {
    background: rgba(76, 175, 80, 0.12);
}

.result-pair-incorrect {
    background: rgba(244, 67, 54, 0.1);
}

.result-pair-indicator {
    font-size: 0.85rem;
    font-weight: 700;
    text-align: center;
}

.result-pair-correct .result-pair-indicator {
    color: #4CAF50;
}

.result-pair-incorrect .result-pair-indicator {
    color: #F44336;
}

.result-pair-term {
    color: var(--color-secondary);
    font-weight: 500;
}

.result-pair-user {
    color: #bbb;
}

.result-pair-correct .result-pair-user {
    color: #4CAF50;
}

.result-pair-incorrect .result-pair-user {
    color: #F44336;
    text-decoration: line-through;
}

.result-pair-correct-val {
    color: #4CAF50;
}

@media (max-width: 600px) {
    .result-match-row,
    .result-reorder-row,
    .result-match-header-row,
    .result-reorder-header-row {
        grid-template-columns: 22px 1fr 1fr 1fr;
        font-size: 0.78rem;
        gap: 6px;
    }
}

.test-results-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-border);
}

.test-results-actions .btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-md);
    min-width: 150px;
}

/* Responsive design */
@media (max-width: 768px) {
    .test-container,
    .test-results-container {
        padding: var(--spacing-lg);
    }
    
    .test-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .score-percentage {
        font-size: 3rem;
    }
    
    .test-result-item {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .test-results-actions {
        flex-direction: column;
    }
    
    .test-results-actions .btn {
        width: 100%;
    }
}

/* Exit Test Modal */
.exit-test-modal {
    max-width: 400px;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    max-width: 90vw;
    animation: slideIn 0.3s ease;
}

.modal-title {
    color: var(--color-secondary);
    margin: 0 0 var(--spacing-md) 0;
    font-size: var(--font-size-xl);
    text-align: center;
}

.modal-message {
    color: var(--color-secondary);
    margin: 0 0 var(--spacing-lg) 0;
    font-size: var(--font-size-md);
    line-height: 1.4;
    text-align: center;
}

.modal-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.modal-buttons .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    min-width: 100px;
}

.btn-danger {
    background: #dc3545;
    color: white;
    border: 1px solid #dc3545;
}

.btn-danger:hover {
    background: #c82333;
    border-color: #c82333;
}

@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}