/* Quiz Container - Theme Variables */
:root {
    /* Quiz specific colors */
    --quiz-primary: #667eea;
    --quiz-secondary: #764ba2;
    --quiz-success: #4CAF50;
    --quiz-warning: #FF9800;
    --quiz-danger: #F44336;
    --quiz-info: #2196F3;
    --quiz-purple: #9C27B0;
    
    /* Light theme quiz colors */
    --quiz-bg: var(--background-color);
    --quiz-card-bg: var(--card-bg);
    --quiz-text: var(--text-color);
    --quiz-border: var(--border-color);
    --quiz-shadow: rgba(0, 0, 0, 0.1);
    --quiz-hover-shadow: rgba(0, 0, 0, 0.15);
    --quiz-gradient-start: #667eea;
    --quiz-gradient-end: #764ba2;
}

/* Dark theme quiz colors */
[data-theme="dark"] {
    --quiz-shadow: rgba(0, 0, 0, 0.3);
    --quiz-hover-shadow: rgba(0, 0, 0, 0.4);
    --quiz-gradient-start: #4a5568;
    --quiz-gradient-end: #2d3748;
}

/* Quiz Container */
.quiz-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--quiz-bg);
    color: var(--quiz-text);
    transition: all 0.3s ease;
}



/* Quiz Info Section */
.quiz-info-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.quiz-info-card {
    background: var(--quiz-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--quiz-shadow);
    border: 1px solid var(--quiz-border);
    transition: all 0.3s ease;
}

.quiz-info-card:hover {
    box-shadow: 0 8px 25px var(--quiz-hover-shadow);
    transform: translateY(-2px);
}

.quiz-info-card h2 {
    color: var(--quiz-text);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.quiz-stats {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
}

.stat-item .stat-icon {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--quiz-text);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--description-color);
    font-weight: 500;
}

/* Difficulty Breakdown */
.difficulty-breakdown {
    grid-column: 1 / -1;
    background: var(--quiz-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--quiz-shadow);
    border: 1px solid var(--quiz-border);
    transition: all 0.3s ease;
}

.difficulty-breakdown:hover {
    box-shadow: 0 8px 25px var(--quiz-hover-shadow);
    transform: translateY(-2px);
}

.difficulty-breakdown h3 {
    color: var(--quiz-text);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.difficulty-bars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.difficulty-bar {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.difficulty-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.difficulty-name {
    font-weight: 600;
    color: var(--quiz-text);
}

.difficulty-count {
    font-size: 0.9rem;
    color: var(--description-color);
}

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

.progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-fill.difficulty-basic { background: var(--quiz-success); }
.progress-fill.difficulty-intermediate { background: var(--quiz-warning); }
.progress-fill.difficulty-advanced { background: var(--quiz-danger); }
.progress-fill.difficulty-expert { background: var(--quiz-purple); }

/* Quiz Topics */
.quiz-topics {
    grid-column: 1 / -1;
    background: var(--quiz-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--quiz-shadow);
    border: 1px solid var(--quiz-border);
    transition: all 0.3s ease;
}

.quiz-topics:hover {
    box-shadow: 0 8px 25px var(--quiz-hover-shadow);
    transform: translateY(-2px);
}

.quiz-topics h3 {
    color: var(--quiz-text);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.topic-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: var(--tool-content-bg);
    border: 1px solid var(--quiz-border);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.topic-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 10px var(--quiz-shadow);
    border-color: var(--quiz-primary);
}

.topic-item .topic-icon {
    font-size: 1.5rem;
    margin-right: 15px;
    width: 25px;
    text-align: center;
    display: inline-block;
}

.topic-item span {
    font-weight: 500;
    color: var(--quiz-text);
}

/* Quiz Rules */
.quiz-rules {
    background: var(--quiz-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--quiz-shadow);
    border: 1px solid var(--quiz-border);
    margin-bottom: 40px;
    transition: all 0.3s ease;
}

.quiz-rules:hover {
    box-shadow: 0 8px 25px var(--quiz-hover-shadow);
    transform: translateY(-2px);
}

.quiz-rules h3 {
    color: var(--quiz-text);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.rule-item {
    display: flex;
    padding: 20px;
    border-radius: 10px;
    gap: 15px;
    transition: all 0.3s ease;
}

.rule-item.warning {
    background: rgba(255, 152, 0, 0.1);
    border-left: 4px solid var(--quiz-warning);
}

.rule-item.info {
    background: rgba(33, 150, 243, 0.1);
    border-left: 4px solid var(--quiz-info);
}

.rule-item.success {
    background: rgba(76, 175, 80, 0.1);
    border-left: 4px solid var(--quiz-success);
}

.rule-item .rule-icon {
    font-size: 1.5rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.rule-content h4 {
    color: var(--quiz-text);
    margin: 0 0 8px 0;
    font-size: 1.1rem;
}

.rule-content p {
    color: var(--description-color);
    margin: 0;
    line-height: 1.5;
}

/* Quiz Start Section */
.quiz-start-section {
    text-align: center;
    background: var(--quiz-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--quiz-shadow);
    border: 1px solid var(--quiz-border);
}

/* User Info Form */
.user-info-form {
    background: var(--tool-content-bg);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--quiz-border);
    margin-bottom: 25px;
}

.user-info-form h3 {
    color: var(--quiz-text);
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.form-description {
    color: var(--description-color);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.user-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 0;
}

.field-group {
    text-align: left;
}

.field-group label {
    display: block;
    color: var(--quiz-text);
    font-weight: 500;
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.field-group input[type="text"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--quiz-border);
    border-radius: 8px;
    background: var(--quiz-card-bg);
    color: var(--quiz-text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.field-group input[type="text"]:focus {
    outline: none;
    border-color: var(--quiz-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.field-group input[type="text"]::placeholder {
    color: var(--description-color);
}

@media (max-width: 600px) {
    .user-fields {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

.start-confirmation {
    margin-bottom: 25px;
}

.start-confirmation label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--quiz-text);
    font-weight: 500;
    cursor: pointer;
}

.start-confirmation input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--quiz-primary);
}

.start-quiz-btn {
    background: linear-gradient(135deg, var(--quiz-primary) 0%, var(--quiz-secondary) 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.start-quiz-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.start-quiz-btn:disabled {
    background: var(--quiz-border);
    color: var(--description-color);
    cursor: not-allowed;
    box-shadow: none;
}

.loading-indicator {
    color: var(--quiz-text);
    font-weight: 500;
    margin-top: 15px;
}

/* Quiz Interface */
.quiz-interface {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--quiz-card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px var(--quiz-shadow);
    border: 1px solid var(--quiz-border);
}

.quiz-header-bar {
    background: var(--quiz-card-bg);
    padding: 20px 30px;
    border-bottom: 1px solid var(--quiz-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quiz-progress {
    flex: 1;
    max-width: 300px;
}

.progress-text {
    color: var(--quiz-text);
    font-weight: 600;
    margin-bottom: 8px;
    text-align: center;
}

.quiz-timer {
    color: var(--quiz-text);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 8px 16px;
    background: var(--tool-content-bg);
    border-radius: 8px;
    border: 1px solid var(--quiz-border);
}

.question-container {
    padding: 40px;
}

.question-header {
    margin-bottom: 25px;
}

.question-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.difficulty-badge,
.category-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty-badge {
    background: var(--quiz-primary);
    color: white;
}

.category-badge {
    background: var(--tool-content-bg);
    color: var(--quiz-text);
    border: 1px solid var(--quiz-border);
}

.question-text {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--quiz-text);
    line-height: 1.6;
    margin-bottom: 30px;
}

.answer-options {
    margin-bottom: 30px;
}

.answer-option {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    margin-bottom: 12px;
    background: var(--tool-content-bg);
    border: 2px solid var(--quiz-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.answer-option:hover {
    border-color: var(--quiz-primary);
    background: var(--quiz-card-bg);
    transform: translateX(5px);
}

.answer-option.selected {
    border-color: var(--quiz-primary);
    background: var(--quiz-card-bg);
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.2);
}

.answer-option .option-letter {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--quiz-border);
    color: var(--quiz-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 15px;
    transition: all 0.3s ease;
}

.answer-option.selected .option-letter {
    background: var(--quiz-primary);
    color: white;
}

.answer-option .option-text {
    flex: 1;
    color: var(--quiz-text);
    font-weight: 500;
    line-height: 1.5;
}

.question-navigation {
    text-align: center;
}

.next-btn {
    background: linear-gradient(135deg, var(--quiz-primary) 0%, var(--quiz-secondary) 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.next-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.next-btn:disabled {
    background: var(--quiz-border);
    color: var(--description-color);
    cursor: not-allowed;
    box-shadow: none;
}

/* Modal Styles */
.modal {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(0, 0, 0, 0.9) !important;
    backdrop-filter: blur(3px) !important;
    display: none;
    align-items: center !important;
    justify-content: center !important;
    z-index: 999999 !important;
    pointer-events: auto !important;
}

.modal.show {
    display: flex !important;
}

.modal-content {
    background: var(--quiz-card-bg) !important;
    border-radius: 15px !important;
    padding: 40px !important;
    max-width: 600px !important;
    width: 90% !important;
    max-height: 80vh !important;
    overflow-y: auto !important;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5) !important;
    border: 2px solid var(--quiz-border) !important;
    position: relative !important;
    z-index: 9999999 !important;
    transform: translateZ(0) !important;
    will-change: transform !important;
}

.results-header {
    text-align: center;
    margin-bottom: 30px;
}

.results-header h2 {
    color: var(--quiz-text);
    margin-bottom: 20px;
}

.score-display {
    margin-bottom: 20px;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--quiz-primary) 0%, var(--quiz-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    position: relative;
}

.score-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.score-percent {
    font-size: 1.2rem;
    color: white;
    margin-left: 4px;
}

.performance-level {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--quiz-text);
    text-align: center;
    margin-bottom: 15px;
}

.results-breakdown {
    margin-bottom: 30px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--quiz-border);
    color: var(--quiz-text);
}

.certificate-section {
    text-align: center;
    margin-bottom: 20px;
}

.certificate-info h3 {
    color: var(--quiz-text);
    margin-bottom: 10px;
}

.download-certificate-btn {
    background: var(--quiz-success);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.download-certificate-btn:hover {
    background: #45a049;
    transform: translateY(-1px);
}

.results-actions {
    text-align: center;
}

.restart-quiz-btn {
    background: var(--quiz-border);
    color: var(--quiz-text);
    border: 1px solid var(--quiz-border);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.restart-quiz-btn:hover {
    background: var(--quiz-primary);
    color: white;
    border-color: var(--quiz-primary);
}

/* Violation Styles */
.violation-content {
    text-align: center;
}

.violation-header {
    margin-bottom: 20px;
}

.violation-header h2 {
    color: var(--quiz-danger);
    margin-bottom: 10px;
}

.violation-message {
    color: var(--quiz-text);
    margin-bottom: 30px;
    line-height: 1.6;
}

.return-home-btn {
    background: var(--quiz-primary);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.return-home-btn:hover {
    background: var(--quiz-secondary);
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .quiz-info-section {
        grid-template-columns: 1fr;
    }

    .quiz-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat-item {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    .difficulty-bars {
        grid-template-columns: 1fr;
    }

    .topics-grid {
        grid-template-columns: 1fr;
    }

    .rules-grid {
        grid-template-columns: 1fr;
    }

    .quiz-header-bar {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .quiz-progress {
        max-width: 100%;
    }

    .question-container {
        padding: 20px;
    }

    .modal-content {
        padding: 20px;
        margin: 20px;
    }
}

/* Utility Classes */
.no-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.no-context-menu {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Modal scroll prevention */
.modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Force all other elements below modal when modal is open */
.modal-open * {
    z-index: 1 !important;
}

.modal-open .modal,
.modal-open .modal * {
    z-index: 999999 !important;
}

.modal-open .sidebar,
.modal-open .mobile-header,
.modal-open .navbar,
.modal-open nav,
.modal-open header,
.modal-open .main-content,
.modal-open .container,
.modal-open .quiz-container {
    z-index: 1 !important;
    position: relative !important;
}

/* Focus styles for accessibility */
.start-quiz-btn:focus,
.next-btn:focus,
.answer-option:focus {
    outline: 2px solid var(--quiz-primary);
    outline-offset: 2px;
}

/* Animation for smooth transitions */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.quiz-interface {
    animation: fadeIn 0.5s ease-out;
}

.question-container {
    animation: fadeIn 0.3s ease-out;
}

/* Rate Limit Modal */
.rate-limit-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1002;
    backdrop-filter: blur(5px);
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    animation: modalFadeIn 0.3s ease;
}

.rate-limit-content {
    background: var(--quiz-card-bg);
    border-radius: 15px;
    padding: 30px;
    max-width: 450px;
    margin: 20px;
    text-align: center;
    box-shadow: 0 10px 30px var(--quiz-hover-shadow);
    position: relative;
    border: 1px solid var(--quiz-border);
    color: var(--quiz-text);
    transition: all 0.3s ease;
    animation: modalSlideIn 0.3s ease;
}

/* Light theme border colors */
.rate-limit-content.completed {
    border-top: 4px solid #28a745;
}

.rate-limit-content.terminated {
    border-top: 4px solid #ffc107;
}

/* Dark theme adjustments */
[data-theme="dark"] .rate-limit-modal {
    background: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .rate-limit-content.completed {
    border-top: 4px solid #20c997;
}

[data-theme="dark"] .rate-limit-content.terminated {
    border-top: 4px solid #fd7e14;
}

.rate-limit-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
}

.rate-limit-title {
    color: var(--quiz-text);
    margin-bottom: 15px;
    font-size: 1.5rem;
    font-weight: 600;
}

.rate-limit-message {
    color: var(--description-color);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 1rem;
}

.rate-limit-timer-section {
    background: var(--quiz-bg);
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
    border: 1px solid var(--quiz-border);
}

.rate-limit-timer-section.completed {
    border-left: 4px solid #28a745;
}

.rate-limit-timer-section.terminated {
    border-left: 4px solid #ffc107;
}

[data-theme="dark"] .rate-limit-timer-section.completed {
    border-left: 4px solid #20c997;
}

[data-theme="dark"] .rate-limit-timer-section.terminated {
    border-left: 4px solid #fd7e14;
}

.rate-limit-timer-label {
    color: var(--description-color);
    font-weight: 600;
    margin-bottom: 5px;
    display: block;
}

.rate-limit-countdown {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--quiz-text);
}

.rate-limit-countdown.completed {
    color: #28a745;
}

.rate-limit-countdown.terminated {
    color: #ffc107;
}

.rate-limit-countdown.finished {
    color: #28a745 !important;
}

[data-theme="dark"] .rate-limit-countdown.completed {
    color: #20c997;
}

[data-theme="dark"] .rate-limit-countdown.terminated {
    color: #fd7e14;
}

[data-theme="dark"] .rate-limit-countdown.finished {
    color: #20c997 !important;
}

.rate-limit-btn {
    background: var(--quiz-primary);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.rate-limit-btn:hover {
    background: var(--quiz-secondary);
    transform: translateY(-1px);
}

/* Animation keyframes for rate limit modal */
@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Responsive design for rate limit modal */
@media (max-width: 500px) {
    .rate-limit-content {
        margin: 10px;
        padding: 20px;
        max-width: 90vw;
    }
    
    .rate-limit-icon {
        font-size: 2.5rem;
    }
    
    .rate-limit-title {
        font-size: 1.3rem;
    }
    
    .rate-limit-message {
        font-size: 0.9rem;
    }
}

/* Print styles */
@media print {
    .quiz-container,
    .quiz-interface,
    .rate-limit-modal {
        display: none !important;
    }
}