/* ============================================
   VARIABLES CSS
   ============================================ */
:root {
    --color-bg: #FFFFFF;
    --color-text: #0B0F19;
    --color-accent: #2563EB;
    --color-accent-hover: #1D4ED8;
    --color-border: #E5E7EB;
    --color-bg-light: #F9FAFB;
    --color-text-secondary: #6B7280;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-orange: #F59E0B;
    
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    --transition: all 0.2s ease;
}

/* ============================================
   RESET & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ============================================
   HEADER (STICKY)
   ============================================ */
.header {
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-sm);
}

.logo-group {
    flex: 1;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-top: 2px;
}

.header-cta {
    padding: 8px 16px;
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.header-cta:hover {
    background-color: var(--color-accent-hover);
}

.header-cta:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ============================================
   HERO / ARTICLE SECTION
   ============================================ */
.hero {
    padding: var(--spacing-xl) 0;
}

.article {
    max-width: 100%;
}

.article h1 {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    text-align: center;

}

.subtitle-accent {
    display: block;
    font-size: 20px;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-top: 8px;
}

.lead {
    font-size: 17px;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
    padding: var(--spacing-sm)
}

.content-block {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow);
}

.content-block h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.content-block p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.content-block p:last-child {
    margin-bottom: 0;
}

.content-block ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.content-block li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.highlight {
    font-weight: 600;
    color: var(--color-text);
    background-color: rgba(37, 99, 235, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    display: inline;
}

.cta-primary {
    width: 100%;
    padding: 18px var(--spacing-md);
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--spacing-lg);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.cta-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.2);
}

.cta-primary:active {
    transform: translateY(0);
}

.cta-primary:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.trust-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-md);
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* ============================================
   QUIZ SECTION
   ============================================ */
.quiz-section {
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
}

.quiz-header {
    margin-bottom: var(--spacing-lg);
}

.progress-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.question-counter {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-align: center;
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background-color: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-accent);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 3px;
}

.quiz-container {
    min-height: 300px;
}

.question-block {
    margin-bottom: var(--spacing-lg);
}

.question-title {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

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

.answer-btn {
    width: 100%;
    padding: 16px var(--spacing-md);
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
    font-family: inherit;
}

.answer-btn:hover:not(:disabled) {
    border-color: var(--color-accent);
    background-color: var(--color-bg-light);
}

.answer-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Selected state: bleu + texte blanc (y compris au focus pour éviter blanc sur blanc) */
.answer-btn.selected,
.answer-btn.selected:hover,
.answer-btn.selected:focus,
.answer-btn.selected:focus-visible {
    border-color: var(--color-accent);
    background-color: var(--color-accent);
    color: #FFFFFF;
}

.answer-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Slider for Q7 */
.slider-container {
    margin-top: var(--spacing-md);
}

.slider-wrapper {
    position: relative;
    padding: var(--spacing-md) 0;
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--color-border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-md);
}

.slider-value {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--color-accent);
    margin-top: var(--spacing-sm);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xs);
    font-size: 12px;
    color: var(--color-text-secondary);
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
    flex: 1;
    padding: 14px var(--spacing-md);
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-secondary {
    flex: 1;
    padding: 14px var(--spacing-md);
    background-color: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-secondary:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ============================================
   LOADER SECTION
   ============================================ */
.loader-section {
    padding: var(--spacing-xl) 0;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-content {
    text-align: center;
    width: 100%;
    max-width: 400px;
}

.loader-icon {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
}

.loader-progress-container {
    width: 100%;
    height: 4px;
    background-color: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.loader-progress-bar {
    height: 100%;
    background-color: var(--color-accent);
    width: 0%;
    animation: loaderProgress 2s ease-in-out forwards;
    border-radius: 2px;
}

@keyframes loaderProgress {
    0% { width: 0%; }
    100% { width: 100%; }
}

.loader-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text-secondary);
    min-height: 24px;
}

/* ============================================
   RESULTS SECTION
   ============================================ */
.results-section {
    padding: var(--spacing-xl) 0;
}

.results-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.score-display {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-light);
    border-radius: var(--radius);
}

.score-value {
    font-size: 64px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.score-label {
    font-size: 24px;
    color: var(--color-text-secondary);
    font-weight: 600;
}

.status-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-lg);
    font-size: 18px;
    font-weight: 700;
}

.status-badge.red {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border: 2px solid var(--color-danger);
}

.status-badge.orange {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-orange);
    border: 2px solid var(--color-orange);
}

.status-badge.green {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 2px solid var(--color-success);
}

.status-emoji {
    font-size: 24px;
}

.analysis-block,
.recommendation-block {
    margin-bottom: var(--spacing-lg);
}

.analysis-block h3,
.recommendation-block h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.analysis-block p,
.recommendation-block p {
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.recommendation-block ul {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-sm);
}

.recommendation-block li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.6;
}

.recommendation-block li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 18px;
}

.comparative-block {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.cta-block {
    margin-bottom: var(--spacing-lg);
}

.cta-shopify {
    width: 100%;
    padding: 18px var(--spacing-md);
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    font-family: inherit;
    text-decoration: none;
    display: block;
    text-align: center;
}

.cta-shopify:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.2);
}

.cta-shopify:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.cta-shopify.secondary {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    box-shadow: none;
}

.cta-shopify.secondary:hover {
    background-color: var(--color-bg-light);
}

.sources-block {
    margin-bottom: var(--spacing-md);
    font-size: 14px;
}

.sources-block details {
    cursor: pointer;
}

.sources-block summary {
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) 0;
    user-select: none;
}

.sources-content {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-sm);
    line-height: 1.6;
}

.sources-content p {
    margin-bottom: var(--spacing-xs);
}

.sources-content ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.disclaimer {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: rgba(37, 99, 235, 0.05);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.disclaimer svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.reset-btn {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
    background-color: var(--color-bg-light);
}

.footer-content {
    text-align: center;
}

.footer-disclaimer {
    font-size: 11px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.footer-disclaimer strong {
    color: var(--color-text);
}

.footer-contact {
    font-size: 11px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.footer-copyright {
    font-size: 10px;
    color: var(--color-text-secondary);
}

/* ============================================
   RESPONSIVE (MOBILE-FIRST)
   ============================================ */
@media (min-width: 768px) {
    .article h1 {
        font-size: 36px;
    }
    
    .subtitle-accent {
        font-size: 24px;
    }
    
    .lead {
        font-size: 20px;
    }
    
    .question-title {
        font-size: 24px;
    }
    
    .score-value {
        font-size: 80px;
    }
    
    .header-content {
        padding: var(--spacing-md) 0;
    }
    
    .logo {
        font-size: 20px;
    }
}

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-section,
.results-section,
.loader-section {
    animation: fadeIn 0.4s ease-out;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}