/**
 * Quiz Shared Styles
 * Consistent with safedrive.kr main site design system
 * WCAG 2.1 AA compliant (4.5:1 contrast for normal text, 3:1 for large text)
 */

/* ============================================
   CSS Variables - Consistent with Main Site
   ============================================ */
:root {
    /* Colors - matching main site */
    --quiz-primary: #2563eb;
    --quiz-primary-dark: #1d4ed8;
    --quiz-primary-light: #3b82f6;
    --quiz-secondary: #10b981;
    --quiz-secondary-dark: #059669;
    --quiz-danger: #ef4444;
    --quiz-warning: #f59e0b;
    
    /* Text Colors - WCAG AA compliant (4.5:1 minimum for normal text) */
    --quiz-text-primary: #1f2937;      /* Contrast: 12.6:1 on white */
    --quiz-text-secondary: #4b5563;    /* Contrast: 7.5:1 on white */
    --quiz-text-muted: #595959;        /* Contrast: 7.0:1 on white - FIXED from #6b7280 (5.0:1) */
    --quiz-text-light: #ffffff;
    
    /* Background Colors */
    --quiz-bg-primary: #ffffff;
    --quiz-bg-secondary: #f3f4f6;
    --quiz-bg-tertiary: #e5e7eb;
    --quiz-bg-dark: #1f2937;
    
    /* Border Colors */
    --quiz-border-color: #e5e7eb;
    --quiz-border-focus: #2563eb;
    
    /* Spacing - matching main site */
    --quiz-spacing-xs: 0.25rem;
    --quiz-spacing-sm: 0.5rem;
    --quiz-spacing-md: 1rem;
    --quiz-spacing-lg: 1.5rem;
    --quiz-spacing-xl: 2rem;
    --quiz-spacing-2xl: 3rem;
    
    /* Layout */
    --quiz-border-radius: 0.5rem;
    --quiz-border-radius-lg: 1rem;
    --quiz-border-radius-full: 9999px;
    --quiz-max-width: 600px;
    --quiz-min-touch-target: 44px;
    
    /* Shadows - matching main site */
    --quiz-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --quiz-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --quiz-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --quiz-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --quiz-transition-fast: 0.15s ease;
    --quiz-transition-normal: 0.3s ease;
    --quiz-transition-slow: 0.5s ease;
    
    /* Progress Bar */
    --quiz-progress-height: 8px;
    --quiz-progress-bg: #e5e7eb;
    --quiz-progress-fill: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* ============================================
   Quiz Container Styles
   ============================================ */
.quiz-container {
    max-width: var(--quiz-max-width);
    margin: 0 auto;
    padding: var(--quiz-spacing-md);
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.quiz-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.quiz-section {
    background-color: var(--quiz-bg-primary);
    border-radius: var(--quiz-border-radius-lg);
    box-shadow: var(--quiz-shadow-md);
    padding: var(--quiz-spacing-xl);
    margin-bottom: var(--quiz-spacing-xl);
}

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

.quiz-title {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--quiz-text-primary);
    margin-bottom: var(--quiz-spacing-sm);
    line-height: 1.3;
}

.quiz-subtitle {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1rem;
    font-weight: 300;
    color: var(--quiz-text-secondary);
    line-height: 1.6;
}

/* ============================================
   Progress Bar Styles
   ============================================ */
.quiz-progress {
    margin-bottom: var(--quiz-spacing-xl);
}

.quiz-progress-bar {
    width: 100%;
    height: var(--quiz-progress-height);
    background-color: var(--quiz-progress-bg);
    border-radius: var(--quiz-border-radius-full);
    overflow: hidden;
    position: relative;
}

.quiz-progress-fill {
    height: 100%;
    background: var(--quiz-progress-fill);
    border-radius: var(--quiz-border-radius-full);
    transition: width var(--quiz-transition-normal);
    position: relative;
}

/* Animated shine effect on progress bar */
.quiz-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 infinite;
}

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

.quiz-progress-text {
    font-family: 'GmarketSans', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--quiz-text-secondary);
    text-align: center;
    margin-top: var(--quiz-spacing-sm);
}

.quiz-progress-text .current {
    color: var(--quiz-primary);
    font-weight: 700;
}

/* ============================================
   Button Styles
   ============================================ */
.quiz-btn {
    font-family: 'GmarketSans', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    padding: var(--quiz-spacing-md) var(--quiz-spacing-xl);
    border-radius: var(--quiz-border-radius-full);
    border: none;
    cursor: pointer;
    min-width: var(--quiz-min-touch-target);
    min-height: var(--quiz-min-touch-target);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--quiz-spacing-sm);
    transition: all var(--quiz-transition-fast);
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
    text-decoration: none;
}

/* Primary Button */
.quiz-btn-primary {
    color: var(--quiz-text-light);
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.quiz-btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
}

.quiz-btn-primary:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}

/* Secondary Button */
.quiz-btn-secondary {
    color: var(--quiz-primary);
    background-color: var(--quiz-bg-primary);
    border: 2px solid var(--quiz-primary);
}

.quiz-btn-secondary:hover {
    background-color: var(--quiz-bg-secondary);
    transform: translateY(-2px);
}

.quiz-btn-secondary:active {
    transform: translateY(0) scale(0.98);
}

/* Ghost Button */
.quiz-btn-ghost {
    color: var(--quiz-text-secondary);
    background-color: transparent;
    border: 1px solid var(--quiz-border-color);
}

.quiz-btn-ghost:hover {
    background-color: var(--quiz-bg-secondary);
    border-color: var(--quiz-text-secondary);
}

/* Success Button */
.quiz-btn-success {
    color: var(--quiz-text-light);
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.quiz-btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

/* Large Button */
.quiz-btn-lg {
    font-size: 1.125rem;
    padding: var(--quiz-spacing-lg) var(--quiz-spacing-2xl);
    min-height: 56px;
}

/* Full Width Button */
.quiz-btn-full {
    width: 100%;
}

/* Icon Button */
.quiz-btn-icon {
    width: var(--quiz-min-touch-target);
    height: var(--quiz-min-touch-target);
    padding: 0;
    border-radius: 50%;
}

/* Disabled Button */
.quiz-btn:disabled,
.quiz-btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ============================================
   Card Styles
   ============================================ */
.quiz-card {
    background-color: var(--quiz-bg-primary);
    border: 2px solid var(--quiz-border-color);
    border-radius: var(--quiz-border-radius-lg);
    padding: var(--quiz-spacing-lg);
    transition: all var(--quiz-transition-fast);
    cursor: pointer;
    min-height: var(--quiz-min-touch-target);
}

.quiz-card:hover {
    border-color: var(--quiz-primary);
    box-shadow: var(--quiz-shadow-md);
    transform: translateY(-2px);
}

.quiz-card:active {
    transform: translateY(0) scale(0.99);
}

.quiz-card.selected {
    border-color: var(--quiz-primary);
    background-color: rgba(37, 99, 235, 0.05);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Answer Option Card */
.quiz-option {
    display: flex;
    align-items: center;
    gap: var(--quiz-spacing-md);
    margin-bottom: var(--quiz-spacing-md);
}

.quiz-option:last-child {
    margin-bottom: 0;
}

.quiz-option-text {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--quiz-text-primary);
    line-height: 1.5;
    flex: 1;
}

.quiz-option-indicator {
    width: 24px;
    height: 24px;
    border: 2px solid var(--quiz-border-color);
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--quiz-transition-fast);
}

.quiz-card.selected .quiz-option-indicator {
    border-color: var(--quiz-primary);
    background-color: var(--quiz-primary);
}

.quiz-card.selected .quiz-option-indicator::after {
    content: '✓';
    color: white;
    font-size: 14px;
    font-weight: bold;
}

/* Result Card */
.quiz-result-card {
    text-align: center;
    padding: var(--quiz-spacing-2xl);
}

.quiz-result-icon {
    font-size: 4rem;
    margin-bottom: var(--quiz-spacing-lg);
}

.quiz-result-title {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--quiz-primary);
    margin-bottom: var(--quiz-spacing-md);
}

.quiz-result-description {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1rem;
    font-weight: 300;
    color: var(--quiz-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--quiz-spacing-xl);
}

/* ============================================
   Question Styles
   ============================================ */
.quiz-question {
    margin-bottom: var(--quiz-spacing-xl);
}

.quiz-question-number {
    font-family: 'GmarketSans', sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--quiz-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--quiz-spacing-sm);
}

.quiz-question-text {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--quiz-text-primary);
    line-height: 1.5;
    margin-bottom: var(--quiz-spacing-lg);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--quiz-spacing-md);
}

/* ============================================
   Navigation Styles
   ============================================ */
.quiz-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--quiz-spacing-md);
    margin-top: var(--quiz-spacing-xl);
    padding-top: var(--quiz-spacing-lg);
    border-top: 1px solid var(--quiz-border-color);
}

.quiz-nav-left,
.quiz-nav-right {
    display: flex;
    gap: var(--quiz-spacing-sm);
}

/* ============================================
   Counter/Stats Styles
   ============================================ */
.quiz-stats {
    display: flex;
    justify-content: center;
    gap: var(--quiz-spacing-lg);
    margin-bottom: var(--quiz-spacing-xl);
}

.quiz-stat {
    text-align: center;
    padding: var(--quiz-spacing-md);
    background-color: var(--quiz-bg-secondary);
    border-radius: var(--quiz-border-radius);
    min-width: 100px;
}

.quiz-stat-value {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--quiz-primary);
    display: block;
}

.quiz-stat-label {
    font-family: 'GmarketSans', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--quiz-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Counter Animation */
.quiz-counter {
    font-family: 'GmarketSans', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--quiz-primary);
    display: inline-block;
}

.quiz-counter.animating {
    animation: counterPulse 0.3s ease;
}

@keyframes counterPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* ============================================
   Share Styles
   ============================================ */
.quiz-share {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--quiz-spacing-md);
    margin-top: var(--quiz-spacing-xl);
}

.quiz-share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--quiz-spacing-sm);
    padding: var(--quiz-spacing-md) var(--quiz-spacing-lg);
    border-radius: var(--quiz-border-radius-full);
    font-family: 'GmarketSans', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--quiz-transition-fast);
    min-height: var(--quiz-min-touch-target);
    border: none;
}

.quiz-share-btn:hover {
    transform: translateY(-2px);
}

.quiz-share-btn.kakao {
    background-color: #FEE500;
    color: #000000;
}

.quiz-share-btn.twitter {
    background-color: #1DA1F2;
    color: white;
}

.quiz-share-btn.facebook {
    background-color: #4267B2;
    color: white;
}

.quiz-share-btn.copy {
    background-color: var(--quiz-bg-secondary);
    color: var(--quiz-text-primary);
    border: 1px solid var(--quiz-border-color);
}

/* ============================================
   Hero Section Styles
   ============================================ */
.quiz-hero {
    text-align: center;
    padding: var(--quiz-spacing-2xl) var(--quiz-spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--quiz-border-radius-lg);
    color: white;
    margin-bottom: var(--quiz-spacing-xl);
}

.quiz-hero-title {
    font-family: 'GmarketSans', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--quiz-spacing-md);
    line-height: 1.3;
}

.quiz-hero-subtitle {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: var(--quiz-spacing-xl);
    line-height: 1.6;
}

/* Hero Animation Container */
.quiz-hero-animation {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--quiz-spacing-xl);
    position: relative;
}

/* ============================================
   Loading Styles
   ============================================ */
.quiz-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--quiz-spacing-2xl);
}

.quiz-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--quiz-bg-secondary);
    border-top-color: var(--quiz-primary);
    border-radius: 50%;
    animation: quizSpin 0.8s linear infinite;
}

@keyframes quizSpin {
    to { transform: rotate(360deg); }
}

.quiz-loading-text {
    font-family: 'GmarketSans', sans-serif;
    font-size: 1rem;
    color: var(--quiz-text-secondary);
    margin-top: var(--quiz-spacing-md);
}

/* ============================================
   Accessibility - Focus Indicators
   ============================================ */
.quiz-btn:focus,
.quiz-card:focus,
.quiz-share-btn:focus {
    outline: 3px solid var(--quiz-primary);
    outline-offset: 2px;
}

.quiz-btn:focus:not(:focus-visible),
.quiz-card:focus:not(:focus-visible),
.quiz-share-btn:focus:not(:focus-visible) {
    outline: none;
}

.quiz-btn:focus-visible,
.quiz-card:focus-visible,
.quiz-share-btn:focus-visible {
    outline: 3px solid var(--quiz-primary);
    outline-offset: 2px;
}

/* High contrast focus for keyboard navigation */
@media (prefers-contrast: high) {
    .quiz-btn:focus-visible,
    .quiz-card:focus-visible,
    .quiz-share-btn:focus-visible {
        outline: 3px solid #000000;
        outline-offset: 3px;
    }
}

/* Skip link for accessibility */
.quiz-skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--quiz-primary);
    color: white;
    padding: var(--quiz-spacing-sm) var(--quiz-spacing-md);
    z-index: 100;
    transition: top var(--quiz-transition-fast);
}

.quiz-skip-link:focus {
    top: 0;
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .quiz-progress-fill::after {
        animation: none;
    }
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

/* Tablet and below (768px) */
@media (max-width: 768px) {
    .quiz-container {
        padding: var(--quiz-spacing-sm);
    }
    
    .quiz-section {
        padding: var(--quiz-spacing-lg);
        border-radius: var(--quiz-border-radius);
    }
    
    .quiz-title {
        font-size: 1.5rem;
    }
    
    .quiz-hero-title {
        font-size: 1.75rem;
    }
    
    .quiz-question-text {
        font-size: 1.125rem;
    }
    
    .quiz-stats {
        flex-wrap: wrap;
    }
    
    .quiz-stat {
        min-width: 80px;
        padding: var(--quiz-spacing-sm);
    }
    
    .quiz-stat-value {
        font-size: 1.25rem;
    }
    
    .quiz-nav {
        flex-direction: column;
        gap: var(--quiz-spacing-md);
    }
    
    .quiz-nav-left,
    .quiz-nav-right {
        width: 100%;
        justify-content: center;
    }
    
    .quiz-btn {
        flex: 1;
    }
}

/* Mobile (480px) */
@media (max-width: 480px) {
    .quiz-title {
        font-size: 1.25rem;
    }
    
    .quiz-hero {
        padding: var(--quiz-spacing-xl) var(--quiz-spacing-md);
    }
    
    .quiz-hero-title {
        font-size: 1.5rem;
    }
    
    .quiz-hero-subtitle {
        font-size: 0.875rem;
    }
    
    .quiz-question-text {
        font-size: 1rem;
    }
    
    .quiz-option-text {
        font-size: 0.9375rem;
    }
    
    .quiz-result-title {
        font-size: 1.25rem;
    }
    
    .quiz-result-description {
        font-size: 0.9375rem;
    }
    
    .quiz-share {
        flex-direction: column;
    }
    
    .quiz-share-btn {
        width: 100%;
    }
}

/* Small Mobile (375px) */
@media (max-width: 375px) {
    .quiz-container {
        padding: var(--quiz-spacing-xs);
    }
    
    .quiz-section {
        padding: var(--quiz-spacing-md);
    }
    
    .quiz-title {
        font-size: 1.125rem;
    }
    
    .quiz-hero-title {
        font-size: 1.25rem;
    }
    
    .quiz-btn {
        font-size: 0.9375rem;
        padding: var(--quiz-spacing-sm) var(--quiz-spacing-md);
    }
    
    .quiz-btn-lg {
        font-size: 1rem;
        padding: var(--quiz-spacing-md) var(--quiz-spacing-lg);
        min-height: 48px;
    }
}

/* Extra Small Mobile (320px) */
@media (max-width: 320px) {
    .quiz-title {
        font-size: 1rem;
    }
    
    .quiz-hero-title {
        font-size: 1.125rem;
    }
    
    .quiz-question-text {
        font-size: 0.9375rem;
    }
    
    .quiz-stat {
        min-width: 70px;
    }
    
    .quiz-stat-value {
        font-size: 1rem;
    }
    
    .quiz-stat-label {
        font-size: 0.625rem;
    }
}

/* ============================================
   Touch Optimization
   ============================================ */
@media (hover: none) and (pointer: coarse) {
    .quiz-btn:hover,
    .quiz-card:hover,
    .quiz-share-btn:hover {
        transform: none;
    }
    
    .quiz-btn:active,
    .quiz-card:active,
    .quiz-share-btn:active {
        transform: scale(0.98);
    }
    
    /* Improve tap highlighting */
    .quiz-btn,
    .quiz-card,
    .quiz-share-btn {
        -webkit-tap-highlight-color: rgba(37, 99, 235, 0.2);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .quiz-hero-animation,
    .quiz-nav,
    .quiz-share,
    .quiz-btn {
        display: none !important;
    }
    
    .quiz-container {
        max-width: 100%;
        padding: 0;
    }
    
    .quiz-section {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}