:root {
    --primary-color: #4a90e2;
    --success-color: #34c759;
    --error-color: #ff3b30;
    --neutral-color: #8e8e93;
    --background-light: #f6f1d5;
    --text-primary: #1e2749;
    --text-secondary: #7f8c8d;
}

body {
    background-color: var(--background-light);
    color: var(--text-primary);
}

.card {
    border: none;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    border-radius: 12px;
}

.answer-btn {
    text-align: left !important;
    padding: 12px 20px;
    margin: 6px 0;
    transition: all 0.2s ease;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    background-color: white;
    color: var(--text-primary);
}

.answer-btn:hover {
    background-color: #f5f9ff;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.answer-btn.correct {
    background-color: var(--success-color) !important;
    color: white !important;
    border-color: var(--success-color) !important;
}

.answer-btn.incorrect {
    background-color: var(--error-color) !important;
    color: white !important;
    border-color: var(--error-color) !important;
}

.answer-btn.selected {
    background-color: var(--primary-color);
    color: white;
}

.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #f0f0f0;
}

.progress-text {
    line-height: 38px;
    font-weight: bold;
}

#feedback {
    border: none;
    border-radius: 12px;
    margin: 1.5rem 0;
    padding: 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.feedback-header {
    padding: 1.25rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.feedback-body {
    padding: 1.25rem;
    background-color: white;
}

#feedback.correct .feedback-header {
    background-color: var(--success-color);
    color: white;
}

#feedback.incorrect .feedback-header {
    background-color: var(--error-color);
    color: white;
}

.feedback-icon {
    font-size: 1.5rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
}

.feedback-reasoning {
    padding: 1rem;
    border-radius: 8px;
    margin: 0.5rem 0;
    background-color: #f8f9fa;
}

#feedback.correct .feedback-reasoning {
    border-color: #198754;
}

#feedback.incorrect .feedback-reasoning {
    border-color: #dc3545;
}

.feedback-explanation {
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Dark mode styles */
body.dark-mode {
    background-color: #1a1a1a;
    color: #fff;
}

body.dark-mode .card {
    background-color: #2d2d2d;
    border-color: #404040;
}

body.dark-mode .answer-btn {
    background-color: #333;
    border-color: #444;
    color: #fff;
}

body.dark-mode .answer-btn:hover {
    background-color: #404040;
}

body.dark-mode .feedback-body {
    background-color: #2d2d2d;
}

body.dark-mode .feedback-reasoning {
    background-color: #333;
}

body.dark-mode .btn-outline-primary {
    color: #fff;
    border-color: #0d6efd;
}

/* Question overview dots */
#question-overview {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.question-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.question-dot.current {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.question-dot.answered {
    background-color: #0d6efd;
    color: white;
}

.question-dot.correct {
    background-color: var(--success-color);
    color: white;
}

.question-dot.incorrect {
    background-color: var(--error-color);
    color: white;
}

.question-dot.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #dee2e6;
    color: #6c757d;
}

body.dark-mode .question-dot.disabled {
    background-color: #444;
    color: #666;
}

body.dark-mode .question-dot {
    background-color: #444;
    color: #d6d6d6;
}

/* Timer styles */
.timer {
    font-size: 1.2rem;
    font-weight: bold;
    color: #0d6efd;
}

/* Animations */
.fade-enter {
    opacity: 0;
}

.fade-enter-active {
    opacity: 1;
    transition: opacity 200ms ease-in;
}

.question-transition {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Accessibility */
body.high-contrast {
    --primary-color: #0066cc;
    --text-color: #ffffff;
    --bg-color: #000000;
}

.font-size-controls {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    display: flex;
    gap: 0.5rem;
    z-index: 1000;
}

/* Confidence meter */
.confidence-meter {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
}

.confidence-btn {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    cursor: pointer;
}

.confidence-btn.selected {
    background-color: var(--primary-color);
    color: white;
}

/* Tooltips */
.keyboard-shortcuts {
    display: inline-block;
    margin-left: 0.5em;
    padding: 0.2em 0.4em;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    font-size: 0.7rem;
    color: #6c757d;
}

/* Related topics */
.related-topics {
    margin-top: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 4px;
}

.related-topics h6 {
    margin-bottom: 0.5rem;
}

.related-topics a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Full screen button */
.fullscreen-btn {
    position: fixed;
    right: 1rem;
    top: 1rem;
    z-index: 1000;
}

/* Mobile swipe area */
.swipe-area {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 20%;
}

.swipe-area.left {
    left: 0;
}

.swipe-area.right {
    right: 0;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .col-md-3 {
        margin-top: 1rem;
    }
    
    .question-overview {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
        justify-content: center;
    }
}

/* Compact results in sidebar */
.sidebar-results {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.sidebar-results .progress {
    height: 6px;
}

.sidebar-results .stats p {
    margin-bottom: 0.3rem;
}

/* Quizling styles */
.quizling {
    position: relative;
    margin-top: 20px;
    opacity: 0.5;
    transition: all 0.5s ease;
    transform: scale(0.9);
    display: none;
}

.quizling-active {
    display: block;
    opacity: 1;
    transform: scale(1);
    animation: shake 0.5s;
}

.quizling img {
    width: 100%;
    border-radius: 50%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    /*Mirror the image*/
    transform: scaleX(-1);
    -webkit-transform: scaleX(-1);
    -moz-transform: scaleX(-1);
    -ms-transform: scaleX(-1);
    -o-transform: scaleX(-1);
}

.quizling h6 {
    text-align: center;
    margin-top: 8px;
    font-weight: bold;
}

@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px) rotate(-5deg); }
    50% { transform: translateX(5px) rotate(5deg); }
    75% { transform: translateX(-5px) rotate(-5deg); }
    100% { transform: translateX(0); }
}

.quote-bubble {
    position: absolute;
    background-color: white;
    border: 2px solid var(--error-color);
    border-radius: 12px;
    padding: 10px;
    width: 180px;
    top: -80px;
    left: 50%;
    transform: translateX(-50%) scale(0);
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    font-size: 0.9rem;
    text-align: center;
    z-index: 10;
    color: var(--error-color);
}

.quote-bubble:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid var(--error-color);
}

.quote-bubble.show {
    transform: translateX(-50%) scale(1);
    opacity: 1;
}

body.dark-mode .quote-bubble {
    background-color: #333;
    color: #fff;
    border-color: #ff5252;
}

body.dark-mode .quote-bubble:after {
    border-top-color: #ff5252;
}

body.dark-mode .quizling h6 {
    color: #ff5252;
}

body.dark-mode .quizling img {
    border-color: #ff5252;
}