/* static/quiz/css/quiz.css - Interactive Financial Quiz Design */

:root {
    --finance-primary: #005A9C; /* A professional blue */
    --finance-secondary: #6c757d; /* Muted grey for secondary text/elements */
    --finance-success: #28a745; /* Clear green for success */
    --finance-danger: #dc3545;  /* Standard red for errors */
    --finance-warning: #ffc107; /* Standard yellow for warnings */
    --finance-light: #f8f9fa;   /* Light background */
    --finance-dark: #343a40;    /* Dark text */
    --finance-hover-light: #eef6fc; /* Lighter blue for hover */
    
    /* New interactive colors */
    --finance-gold: #FFD700;
    --finance-accent: #0A2342;
    --finance-gradient-start: #005A9C;
    --finance-gradient-end: #0A2342;
    --shadow-primary: rgba(0, 90, 156, 0.15);
    --shadow-success: rgba(40, 167, 69, 0.2);
    --shadow-danger: rgba(220, 53, 69, 0.2);
}

body {
    background-color: var(--finance-light);
    color: var(--finance-dark);
    font-family: 'Noto Sans KR', 'Helvetica Neue', Arial, sans-serif; /* Added Noto Sans KR for consistency */
}

.quiz-container {
    max-width: 800px;
    margin: 2rem auto;
    background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
    border-radius: 20px;
    box-shadow: 
        0 20px 40px rgba(0, 90, 156, 0.1),
        0 8px 16px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    padding: 0;
    overflow: hidden;
    position: relative;
}

.quiz-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--finance-primary), var(--finance-gold), var(--finance-primary));
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { background-position: 200% 0; }
    50% { background-position: -200% 0; }
}

/* Progress Bar */
.quiz-progress-wrapper {
    padding: 1.5rem 2rem 0;
    margin-bottom: 1rem;
}

.quiz-progress-bar {
    height: 6px;
    background: linear-gradient(90deg, #e9ecef 0%, #dee2e6 100%);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--finance-primary), var(--finance-gold));
    border-radius: 10px;
    width: 100%;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: progressShine 2s ease-in-out infinite;
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--finance-secondary);
    font-weight: 500;
}

/* Quiz Header */
.quiz-header {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--finance-primary) 0%, var(--finance-accent) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.header-animation {
    position: relative;
    z-index: 2;
}

.floating-icons {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    opacity: 0.1;
}

.floating-icons i {
    position: absolute;
    font-size: 3rem;
    animation: float 6s ease-in-out infinite;
}

.floating-icons i:nth-child(1) {
    left: -60px;
    animation-delay: 0s;
}

.floating-icons i:nth-child(2) {
    left: 0;
    animation-delay: 2s;
}

.floating-icons i:nth-child(3) {
    left: 60px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.quiz-title {
    position: relative;
    margin-bottom: 1rem;
}

.title-main {
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    position: relative;
    z-index: 2;
}

.title-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(255,215,0,0.3) 0%, transparent 70%);
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% { opacity: 0.3; transform: translateX(-50%) scale(1); }
    100% { opacity: 0.6; transform: translateX(-50%) scale(1.1); }
}

.quiz-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* User Stats */
.user-stats {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.stat-card {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 15px;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.balance-card .stat-icon {
    background: linear-gradient(135deg, var(--finance-gold), #ffd700);
    color: var(--finance-accent);
}

.reward-card .stat-icon {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-bottom: 0.2rem;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
}

.reward-amount {
    color: var(--finance-gold);
    text-shadow: 0 0 10px rgba(255,215,0,0.5);
    animation: rewardPulse 2s ease-in-out infinite;
}

@keyframes rewardPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Question Area */
.question-area {
    padding: 2rem;
    margin: 0 2rem 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,90,156,0.08);
    position: relative;
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e9ecef;
}

.topic-badge-wrapper {
    flex: 1;
}

.topic-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--finance-primary), var(--finance-accent));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0,90,156,0.2);
}

.question-number {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--finance-gold), #ffd700);
    color: var(--finance-accent);
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(255,215,0,0.3);
}

.q-label {
    font-size: 1.1rem;
}

.q-number {
    font-size: 1.3rem;
}

.question-content {
    position: relative;
    margin-bottom: 2rem;
}

.question-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--finance-dark);
    line-height: 1.6;
    margin: 0;
    position: relative;
    z-index: 2;
}

.question-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(0,90,156,0.05) 0%, transparent 70%);
    border-radius: 15px;
    animation: questionPulse 4s ease-in-out infinite;
}

@keyframes questionPulse {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.02); }
}

.question-area .badge.bg-primary {
    background-color: var(--finance-primary) !important;
    font-size: 0.9rem;
    padding: 0.5em 0.75em;
}

.question-text {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--finance-dark);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.options-wrapper {
    margin-bottom: 2rem;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.option-item {
    display: flex;
    align-items: center;
    padding: 1.25rem;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.option-item:hover {
    border-color: var(--finance-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,90,156,0.15);
}

.option-item:hover .option-ripple {
    transform: scale(1);
    opacity: 0.1;
}

.option-indicator {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.option-letter {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--finance-secondary);
    transition: all 0.3s ease;
}

.option-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: var(--finance-primary);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    transition: all 0.3s ease;
}

.option-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.option-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--finance-dark);
    line-height: 1.4;
}

.option-status {
    opacity: 0;
    transition: all 0.3s ease;
}

.option-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(0,90,156,0.05), transparent);
    opacity: 0;
    transition: all 0.3s ease;
}

/* Selected Option */
.option-item.selected {
    border-color: var(--finance-primary);
    background: linear-gradient(135deg, #ffffff, #f0f7ff);
    box-shadow: 0 8px 25px rgba(0,90,156,0.2);
}

.option-item.selected .option-indicator {
    background: linear-gradient(135deg, var(--finance-primary), var(--finance-accent));
}

.option-item.selected .option-letter {
    color: white;
}

.option-item.selected .option-glow {
    opacity: 1;
}

/* Correct Answer */
.option-item.correct-answer {
    border-color: var(--finance-success);
    background: linear-gradient(135deg, #ffffff, #f0fff4);
    animation: correctPulse 0.6s ease-out;
}

.option-item.correct-answer .option-indicator {
    background: linear-gradient(135deg, var(--finance-success), #20c997);
}

.option-item.correct-answer .option-letter {
    color: white;
}

.option-item.correct-answer .option-status {
    opacity: 1;
}

.correct-icon {
    color: var(--finance-success);
    font-size: 1.2rem;
}

/* Incorrect Answer */
.option-item.incorrect-answer {
    border-color: var(--finance-danger);
    background: linear-gradient(135deg, #ffffff, #fff5f5);
    animation: incorrectShake 0.6s ease-out;
}

.option-item.incorrect-answer .option-indicator {
    background: linear-gradient(135deg, var(--finance-danger), #e74c3c);
}

.option-item.incorrect-answer .option-letter {
    color: white;
}

.option-item.incorrect-answer .option-status {
    opacity: 1;
}

.incorrect-icon {
    color: var(--finance-danger);
    font-size: 1.2rem;
}

/* Actual Correct Answer (when user was wrong) */
.option-item.actual-correct-answer {
    border-color: var(--finance-success);
    background: linear-gradient(135deg, #ffffff, #f0fff4);
    box-shadow: 0 0 20px rgba(40,167,69,0.3);
    animation: revealCorrect 0.8s ease-out 0.3s both;
}

@keyframes correctPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

@keyframes incorrectShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes revealCorrect {
    0% { opacity: 0.5; transform: scale(0.98); }
    100% { opacity: 1; transform: scale(1); }
}

/* Submit Section */
.submit-section {
    text-align: center;
    margin-top: 2rem;
}

.submit-btn {
    background: linear-gradient(135deg, var(--finance-primary), var(--finance-accent));
    border: none;
    border-radius: 50px;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(0,90,156,0.3);
    min-width: 200px;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0,90,156,0.4);
}

.submit-btn:disabled {
    background: linear-gradient(135deg, #6c757d, #5a6268);
    cursor: not-allowed;
    box-shadow: 0 4px 15px rgba(108,117,125,0.2);
}

.btn-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    z-index: 2;
}

.btn-icon {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.submit-btn:hover:not(:disabled) .btn-icon {
    transform: translateX(3px);
}

.btn-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.submit-btn:active .btn-ripple {
    width: 300px;
    height: 300px;
}

.btn-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(255,215,0,0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.submit-btn:hover:not(:disabled) .btn-glow {
    opacity: 1;
}

.submit-hint {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--finance-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    opacity: 0.8;
}

.submit-hint i {
    color: var(--finance-warning);
}

.options-list .list-group-item:hover {
    background-color: var(--finance-hover-light);
    border-color: var(--finance-primary);
    transform: translateY(-3px); /* Slightly more lift on hover */
    box-shadow: 0 4px 12px rgba(0, 90, 156, 0.1); /* Subtle shadow on hover for depth */
}

/* Style for when an option is selected by the user (before submission) - using Bootstrap's 'active' class */
.options-list .list-group-item.active {
    background-color: var(--finance-primary);
    border-color: var(--finance-primary);
    color: #fff;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0, 90, 156, 0.2); /* Shadow for active state to make it pop */
}

/* Styles after submission */
.options-list .list-group-item.correct-answer,
.options-list .list-group-item.actual-correct-answer {
    background-color: #e6f9f0 !important; /* Slightly more vibrant light green for clarity */
    border-color: #20c997 !important; /* A clearer, brighter success green border */
    color: #0a5c3a !important; /* Darker green text for better contrast */
    font-weight: bold; /* Make correct answer text bold for emphasis */
}

.options-list .list-group-item.incorrect-answer {
    background-color: #fff0f1 !important; /* Slightly more vibrant light red */
    border-color: #f16d7a !important; /* A clearer, brighter danger red border */
    color: #8b1c27 !important; /* Darker red text for better contrast */
}

.options-list .list-group-item .fas {
    transition: opacity 0.2s ease-in-out;
}

.submit-btn,
.btn-primary {
    background-color: var(--finance-primary);
    border-color: var(--finance-primary);
    padding: 0.85rem 2rem; /* Adjusted padding for a more substantial button */
    font-size: 1.15rem; /* Slightly larger font */
    font-weight: 500;
    border-radius: 8px; /* Consistent rounded corners */
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.submit-btn:hover,
.btn-primary:hover {
    background-color: #004a80; /* Darker blue for hover */
    border-color: #004170; /* Slightly darker border for hover */
    transform: translateY(-2px); /* Lift effect on hover */
    box-shadow: 0 4px 10px rgba(0, 74, 128, 0.2); /* Shadow on hover */
}

.submit-btn:active,
.btn-primary:active {
    transform: translateY(0px); /* Click effect */
    box-shadow: 0 2px 5px rgba(0, 74, 128, 0.15); /* Shadow when active */
}

.submit-btn:disabled {
    background-color: var(--finance-secondary);
    border-color: var(--finance-secondary);
}

.feedback-message,
.next-quiz-info {
    padding: 1.25rem;
    border-radius: 8px;
    font-size: 1rem;
    text-align: center;
}

.feedback-message.bg-success-light {
    background-color: #e9f7ef !important;
    color: #1d7b3f !important;
    border: 1px solid var(--finance-success) !important;
}

.feedback-message.bg-danger-light {
    background-color: #fdecea !important;
    color: #a71d2a !important;
    border: 1px solid var(--finance-danger) !important;
}

.next-quiz-info.alert-info {
    background-color: #e7f3fe;
    color: #004085;
    border: 1px solid #b8daff;
}

/* Ensure flash messages have some top margin if quiz content is present */
.quiz-container > .alert {
    margin-bottom: 1.5rem; /* Add bottom margin to separate from quiz header */
}

/* Feedback and Explanation Messages */
.feedback-message {
    padding: 1.5rem;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin: 2rem;
    position: relative;
    overflow: hidden;
}

.feedback-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}

.feedback-message.show::before {
    left: 100%;
}

.feedback-message.correct {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: var(--finance-success);
    border: 2px solid var(--finance-success);
    box-shadow: 0 8px 25px rgba(40,167,69,0.2);
    animation: successBounce 0.6s ease-out;
}

.feedback-message.incorrect {
    background: linear-gradient(135deg, #f8d7da, #f1b0b7);
    color: var(--finance-danger);
    border: 2px solid var(--finance-danger);
    box-shadow: 0 8px 25px rgba(220,53,69,0.2);
    animation: errorShake 0.6s ease-out;
}

@keyframes successBounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.explanation-message {
    background: linear-gradient(135deg, #ffffff, #f8fbff);
    border: 2px solid #e9ecef;
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--finance-dark);
    box-shadow: 0 8px 20px rgba(0,90,156,0.08);
    position: relative;
}

.explanation-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--finance-primary), var(--finance-gold));
    border-radius: 15px 15px 0 0;
}

.explanation-message h5 {
    color: var(--finance-primary);
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.explanation-message h5::before {
    content: '💡';
    font-size: 1.1rem;
}

.explanation-message p {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .quiz-container {
        margin: 1rem;
        border-radius: 15px;
    }
    
    .quiz-header {
        padding: 1.5rem;
    }
    
    .title-main {
        font-size: 2rem;
    }
    
    .user-stats {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .question-area {
        margin: 0 1rem 1rem;
        padding: 1.5rem;
    }
    
    .question-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .option-item {
        padding: 1rem;
    }
    
    .option-indicator {
        width: 40px;
        height: 40px;
    }
    
    .submit-btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .feedback-message,
    .explanation-message {
        margin: 1rem;
        padding: 1.25rem;
    }
}