/* ============================================
   VARIABLES & RESET
   ============================================ */

:root {
    /* Couleurs principales */
    --color-green: #36B37E;
    --color-red: #E5534B;
    --color-blue-grey: #F5F7FA;
    --color-blue-steel: #2D4059;
    --color-grey-graphite: #6B7280;
    --color-white: #FFFFFF;

    /* Typographies */
    --font-title: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Bordures */
    --border-radius: 12px;
    --border-radius-sm: 8px;

    /* Transitions */
    --transition-base: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-blue-steel);
    background-color: var(--color-white);
    overflow-x: hidden;
    position: relative;
}

/* ============================================
   TOUCH OPTIMIZATIONS
   ============================================ */

/* Touch feedback animation */
.touch-active {
    opacity: 0.8;
    transform: scale(0.98);
}

/* Improve touch targets for mobile */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .btn-vote,
    .btn-link,
    a,
    button,
    select,
    input[type="checkbox"] {
        min-height: 44px;
        min-width: 44px;
    }

    /* Remove hover effects on touch devices */
    .btn:hover,
    .btn-vote:hover,
    .step:hover,
    .feature-item:hover {
        transform: none;
    }

    /* Add active state for touch feedback */
    .btn:active {
        transform: scale(0.98);
        opacity: 0.9;
    }

    .btn-vote:active {
        transform: scale(0.98);
    }

    /* Larger tap targets on mobile */
    .language-selector select {
        min-height: 44px;
        padding: 10px 16px;
    }

    .close-modal {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ============================================
   LANGUAGE SELECTOR
   ============================================ */

.language-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 999;
}

.language-selector select {
    font-family: var(--font-body);
    font-size: 1rem;
    padding: 10px 16px;
    border: 2px solid var(--color-blue-grey);
    border-radius: var(--border-radius-sm);
    background-color: var(--color-white);
    color: var(--color-blue-steel);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.language-selector select:hover {
    border-color: var(--color-green);
    box-shadow: 0 4px 12px rgba(54, 179, 126, 0.2);
}

.language-selector select:focus {
    outline: none;
    border-color: var(--color-green);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-blue-steel);
}

.section-subtitle {
    text-align: center;
    color: var(--color-grey-graphite);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    font-family: var(--font-title);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition-base);
    display: inline-block;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

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

.btn-primary:hover {
    background-color: #2a9968;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(54, 179, 126, 0.3);
}

.btn-secondary {
    background-color: var(--color-blue-steel);
    color: var(--color-white);
}

.btn-secondary:hover {
    background-color: #1f2d42;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 64, 89, 0.3);
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-blue-steel);
    font-family: var(--font-body);
    font-weight: 500;
    cursor: pointer;
    text-decoration: underline;
    padding: var(--spacing-xs);
    font-size: 0.95rem;
}

.btn-link:hover {
    color: var(--color-green);
}

.btn-vote {
    background-color: var(--color-blue-grey);
    color: var(--color-blue-steel);
    padding: 10px 20px;
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-title);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 0.95rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.btn-vote:hover {
    background-color: var(--color-green);
    color: var(--color-white);
    border-color: var(--color-green);
}

.btn-vote.voted {
    background-color: var(--color-green);
    color: var(--color-white);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--color-blue-grey) 0%, var(--color-white) 100%);
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease;
    line-height: 1.25;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--color-grey-graphite);
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 0.2s both;
    line-height: 1.7;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--color-green);
    font-weight: 600;
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-visual {
    margin-top: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.3;
}

#equityChart {
    width: 100%;
    height: 300px;
}

/* ============================================
   SIGNAL SECTION
   ============================================ */

.signal-section {
    background-color: var(--color-white);
}

.signal-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    max-width: 900px;
    margin: 0 auto;
}

/* Signal indicators with lock system */
.signal-indicators {
    display: none;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-blue-grey);
}

.signal-indicators.expanded {
    display: block;
    animation: fadeInUp 0.4s ease;
}

.indicators-title {
    font-size: 1.2rem;
    color: var(--color-blue-steel);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-title);
    font-weight: 600;
}

.lock-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background-color: var(--color-blue-grey);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-base);
}

.lock-indicator.unlocked {
    background-color: rgba(54, 179, 126, 0.1);
    border-left: 4px solid var(--color-green);
}

.lock-indicator.locked {
    background-color: rgba(107, 114, 128, 0.1);
    border-left: 4px solid var(--color-grey-graphite);
}

.lock-icon {
    font-size: 2rem;
    min-width: 40px;
    text-align: center;
}

.lock-content {
    flex: 1;
}

.lock-name {
    font-weight: 600;
    color: var(--color-blue-steel);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.lock-interpretation {
    font-size: 0.9rem;
    color: var(--color-grey-graphite);
    margin: 0;
}

/* Signal main display */
.signal-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-blue-grey);
}

.signal-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    background-color: var(--color-green);
    color: var(--color-white);
    font-family: var(--font-title);
    font-weight: 700;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(54, 179, 126, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.signal-badge.sell {
    background-color: var(--color-red);
    box-shadow: 0 4px 12px rgba(229, 83, 75, 0.3);
}

.signal-badge.wait {
    background-color: #FF9800;
    box-shadow: 0 4px 12px rgba(255, 152, 0, 0.3);
}

.signal-icon {
    font-size: 2rem;
    line-height: 1;
}

.signal-label {
    font-size: 1.5rem;
    letter-spacing: 0.05em;
}

.signal-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: right;
}

.signal-meta p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-grey-graphite);
}

.signal-meta strong {
    color: var(--color-blue-steel);
    font-family: var(--font-mono);
}

/* Signal explanation */
.signal-explanation {
    background-color: var(--color-blue-grey);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-md) 0;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-blue-steel);
}

/* Indicators display */
.indicators-section {
    margin: var(--spacing-lg) 0;
}

.indicators-section h4 {
    font-size: 1.2rem;
    color: var(--color-blue-steel);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-title);
}

.indicator-row {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-blue-grey);
}

.indicator-row:last-child {
    border-bottom: none;
}

.indicator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.indicator-name {
    font-weight: 600;
    color: var(--color-blue-steel);
    font-size: 1rem;
}

.indicator-value {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-green);
}

.indicator-value.negative {
    color: var(--color-red);
}

.indicator-value.neutral {
    color: var(--color-grey-graphite);
}

.indicator-interpretation {
    font-size: 0.9rem;
    color: var(--color-grey-graphite);
    margin: 0;
    padding-left: var(--spacing-sm);
    font-style: italic;
}

/* Old styles for backward compatibility */
.signal-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.signal-light {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--color-green);
    box-shadow: 0 0 30px rgba(54, 179, 126, 0.6);
    animation: pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}

.signal-light.red {
    background-color: var(--color-red);
    box-shadow: 0 0 30px rgba(229, 83, 75, 0.6);
}

.signal-status {
    font-size: 1.125rem;
    line-height: 1.5;
    color: var(--color-blue-steel);
}

.signal-history {
    background-color: var(--color-blue-grey);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-md) 0;
}

.history-text {
    margin: 0;
    text-align: center;
}

.highlight {
    font-weight: 600;
    color: var(--color-green);
}

.disclaimer {
    background-color: #FFF4E5;
    border-left: 4px solid #FF9800;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    color: #8B5000;
    margin-top: var(--spacing-md);
}

/* ============================================
   MODAL
   ============================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.3s ease;
}

.close-modal {
    position: absolute;
    right: var(--spacing-md);
    top: var(--spacing-md);
    font-size: 28px;
    font-weight: bold;
    color: var(--color-grey-graphite);
    cursor: pointer;
    transition: var(--transition-base);
}

.close-modal:hover {
    color: var(--color-blue-steel);
}

.indicators-list {
    margin: var(--spacing-md) 0;
}

.indicator-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-blue-grey);
}

.indicator-item:last-child {
    border-bottom: none;
}

.indicator-name {
    font-weight: 500;
    color: var(--color-blue-steel);
}

.indicator-value {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--color-green);
}

.indicator-value.placeholder {
    color: var(--color-grey-graphite);
    font-style: italic;
}

.modal-note {
    font-size: 0.9rem;
    color: var(--color-grey-graphite);
    font-style: italic;
    margin-top: var(--spacing-md);
    text-align: center;
}

/* ============================================
   METHODOLOGY SECTION
   ============================================ */

.methodology-section {
    background-color: var(--color-blue-grey);
}

.methodology-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.step {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border: 2px solid var(--color-green);
}

.step-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.step-title {
    color: var(--color-blue-steel);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.step-subtitle {
    color: var(--color-grey-graphite);
    font-size: 0.95rem;
    margin: 0;
}

.step-description {
    color: var(--color-grey-graphite);
    font-size: 0.95rem;
    display: none;
}

/* Overlay modal for methodology details */
.detail-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 999;
    padding: 2rem;
    overflow-y: auto;
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.detail-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-content {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    max-width: 700px;
    width: 100%;
    position: relative;
    animation: slideUp 0.4s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.detail-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-grey-graphite);
    cursor: pointer;
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition-base);
}

.detail-close:hover {
    background-color: var(--color-blue-grey);
    color: var(--color-blue-steel);
}

.detail-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--color-green);
}

.detail-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.detail-title {
    color: var(--color-blue-steel);
    font-size: 2rem;
    margin-bottom: 0;
}

.detail-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-blue-steel);
}

.detail-body strong {
    color: var(--color-green);
}

.detail-body em {
    color: var(--color-grey-graphite);
    font-style: italic;
}

/* ============================================
   COMPARISON / DIFFERENT SECTION
   ============================================ */

.different-section {
    background-color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.comparison-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.comparison-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.comparison-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.comparison-card.highlight {
    border: 2px solid var(--color-green);
    background: linear-gradient(135deg, rgba(54, 179, 126, 0.05) 0%, var(--color-white) 100%);
}

.comparison-card:not(.highlight) {
    filter: grayscale(0.3);
    opacity: 0.9;
}

.comparison-card:not(.highlight):hover {
    filter: grayscale(0);
    opacity: 1;
}

.comparison-title {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.comparison-card:not(.highlight) .comparison-title {
    color: var(--color-grey-graphite);
}

.comparison-card.highlight .comparison-title {
    color: var(--color-green);
}

.comparison-summary {
    color: var(--color-grey-graphite);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.comparison-details {
    display: none;
    margin-top: var(--spacing-md);
    animation: fadeInUp 0.3s ease;
}

.comparison-card.expanded .comparison-details {
    display: block;
}

.comparison-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-details li {
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-blue-steel);
}

/* Old compatibility styles */
.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-column {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.comparison-column h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid;
}

.comparison-bad h3 {
    color: var(--color-grey-graphite);
    border-color: var(--color-grey-graphite);
}

.comparison-good h3 {
    color: var(--color-green);
    border-color: var(--color-green);
}

.comparison-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-column li {
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-blue-steel);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.comparison-column li::before {
    flex-shrink: 0;
    margin-top: 2px;
}

.comparison-bad li {
    opacity: 0.75;
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features-section {
    background-color: var(--color-white);
}


/* Feature categories */
.feature-category {
    margin-bottom: var(--spacing-xl);
}

.category-title {
    font-size: 1.5rem;
    color: var(--color-blue-steel);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-title);
    font-weight: 600;
    text-align: left;
    padding-bottom: var(--spacing-xs);
    border-bottom: 3px solid var(--color-green);
}

/* Features grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

/* Feature card */
.feature-card {
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-blue-grey) 100%);
    border: 2px solid var(--color-blue-grey);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(54, 179, 126, 0.2);
    border-color: var(--color-green);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-green) 0%, var(--color-blue-steel) 100%);
    opacity: 0;
    transition: var(--transition-base);
}

.feature-card:hover::before {
    opacity: 1;
}

/* Feature icon */
.feature-icon {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xs);
    filter: grayscale(0.3);
    transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
    filter: grayscale(0);
    transform: scale(1.1);
}

/* Feature content */
.feature-content {
    flex: 1;
}

.feature-content h4 {
    color: var(--color-blue-steel);
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
    font-family: var(--font-title);
    font-weight: 600;
    line-height: 1.3;
}

.feature-content p {
    color: var(--color-grey-graphite);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.5;
}

.regulatory-note {
    font-size: 0.8rem !important;
    font-style: italic;
    color: var(--color-grey-graphite) !important;
    margin-top: var(--spacing-sm) !important;
    padding: var(--spacing-xs);
    background-color: rgba(107, 114, 128, 0.1);
    border-radius: 4px;
    border-left: 3px solid var(--color-grey-graphite);
}

/* Vote button */
.btn-vote {
    background-color: var(--color-blue-grey);
    color: var(--color-blue-steel);
    padding: 12px 24px;
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-title);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn-vote .vote-icon {
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.btn-vote .vote-text {
    transition: var(--transition-base);
}

/* State: Default / Hover */
.btn-vote:hover {
    background-color: rgba(54, 179, 126, 0.1);
    border-color: var(--color-green);
    transform: scale(1.02);
}

/* State: Voted once (green - "Je veux ça" with light bulb) */
.btn-vote.voted-once {
    background-color: var(--color-green);
    color: var(--color-white);
    border-color: var(--color-green);
    animation: votePopIn 0.3s ease;
    position: relative;
}

/* Badge booster doré pour suggérer le 2e clic */
.btn-vote.voted-once::after {
    content: '🚀';
    position: absolute;
    top: -10px;
    right: -10px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    box-shadow: 0 2px 12px rgba(255, 215, 0, 0.6);
    animation: pulseBooster 2s ease-in-out infinite;
    transition: all 0.3s ease;
}

.btn-vote.voted-once:hover::after {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.8);
}

.btn-vote.voted-once:hover {
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.3);
}

@keyframes pulseBooster {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.15);
        opacity: 0.85;
    }
}

/* State: Voted twice (gold - "J'adore!" with rocket) */
.btn-vote.voted-twice {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: var(--color-blue-steel);
    border-color: #FFD700;
    animation: votePopIn 0.3s ease, glow 2s ease-in-out infinite;
    box-shadow: 0 4px 16px rgba(255, 215, 0, 0.5);
    font-weight: 700;
}

.btn-vote.voted-twice .vote-icon {
    transform: scale(1.2);
}

.btn-vote.voted-twice .vote-text {
    font-weight: 700;
}

/* Animation for vote */
@keyframes votePopIn {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 4px 16px rgba(255, 215, 0, 0.5);
    }
    50% {
        box-shadow: 0 4px 24px rgba(255, 215, 0, 0.8);
    }
}

/* Old compatibility styles */
.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.feature-item {
    background-color: var(--color-white);
    border: 2px solid var(--color-blue-grey);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-base);
}

.feature-item:hover {
    border-color: var(--color-green);
    box-shadow: 0 4px 16px rgba(54, 179, 126, 0.15);
}

.feature-content h3 {
    color: var(--color-blue-steel);
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
}

.vote-count {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-blue-steel);
    font-size: 1.125rem;
    min-width: 40px;
    text-align: center;
}

/* ============================================
   PARTICIPATION SECTION
   ============================================ */

.participation-section {
    background: linear-gradient(135deg, var(--color-blue-steel) 0%, #1f2d42 100%);
    color: var(--color-white);
}

.participation-section .section-title {
    color: var(--color-white);
}

.participation-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-white);
}

.form-group input[type="email"],
.form-group input[type="text"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    border: 2px solid transparent;
    background-color: var(--color-white);
    color: var(--color-blue-steel);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-green);
}

.checkbox-label {
    color: var(--color-white);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.checkbox-container {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    color: var(--color-white);
    font-size: 0.95rem;
}

.checkbox-container input[type="checkbox"] {
    margin-right: var(--spacing-xs);
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.consent-checkbox {
    background-color: rgba(54, 179, 126, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--color-green);
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
    line-height: 1.6;
}

.consent-checkbox input[type="checkbox"] {
    flex-shrink: 0;
    align-self: flex-start;
    margin-top: 2px;
}

.success-message {
    display: none;
    max-width: 600px;
    margin: var(--spacing-lg) auto;
    text-align: center;
    background-color: rgba(54, 179, 126, 0.2);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-green);
}

.success-message.active {
    display: block;
    animation: fadeInUp 0.5s ease;
}

.success-message p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.community-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.community-link {
    background-color: var(--color-white);
    color: var(--color-blue-steel);
    padding: 10px 24px;
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-base);
}

.community-link:hover {
    background-color: var(--color-green);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ============================================
   FEEDBACK SECTION
   ============================================ */

.feedback-section {
    background-color: var(--color-blue-grey);
}

.feedback-card {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.feedback-form {
    margin-bottom: var(--spacing-lg);
}

.feedback-stats {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--color-blue-grey);
}

.stats-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-green);
}

.encouragement {
    color: var(--color-grey-graphite);
    font-style: italic;
    margin-top: var(--spacing-xs);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--color-blue-steel);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-green);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icon {
    color: var(--color-white);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.social-icon:hover {
    background-color: var(--color-green);
    transform: translateY(-3px);
}

.footer-tagline {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-tagline p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-style: italic;
    margin: 0;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero {
        min-height: 70vh;
        padding: 4rem 0;
    }

    .methodology-steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .signal-card {
        padding: var(--spacing-md);
    }

    .comparison-table {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .comparison-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .modal-content {
        width: 85%;
        max-width: 600px;
    }

    .detail-content {
        max-width: 90%;
        padding: var(--spacing-lg);
    }

    .lock-indicator {
        padding: var(--spacing-sm);
    }

    .lock-icon {
        font-size: 1.5rem;
    }
}

/* Mobile landscape / Small tablet (481px - 768px) */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }

    h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    /* Language selector adjustments */
    .language-selector {
        top: 15px;
        right: 15px;
    }

    .language-selector select {
        font-size: 0.9rem;
        padding: 8px 12px;
    }

    /* Hero section */
    .hero {
        padding: var(--spacing-lg) 0;
        min-height: 60vh;
    }

    .hero-title {
        margin-bottom: var(--spacing-md);
    }

    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-lg);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        padding: 12px 24px;
    }

    #equityChart {
        height: 200px;
    }

    /* Signal section */
    .signal-main {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }

    .signal-badge {
        justify-content: center;
        font-size: 1.3rem;
    }

    .signal-icon {
        font-size: 1.8rem;
    }

    .signal-label {
        font-size: 1.3rem;
    }

    .signal-meta {
        text-align: center;
    }

    .signal-indicator {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .signal-light {
        width: 60px;
        height: 60px;
    }

    .signal-status {
        font-size: 1rem;
    }

    .signal-history {
        padding: var(--spacing-sm);
    }

    /* Comparison section */
    .comparison-table {
        grid-template-columns: 1fr;
    }

    .comparison-column {
        padding: var(--spacing-md);
    }

    .comparison-column h3 {
        font-size: 1.2rem;
    }

    /* Modal */
    .modal-content {
        width: 90%;
        padding: var(--spacing-md);
    }

    .close-modal {
        right: var(--spacing-sm);
        top: var(--spacing-sm);
    }

    /* Methodology */
    .methodology-steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .step {
        padding: var(--spacing-md);
    }

    .step-icon {
        font-size: 2.5rem;
    }

    .step-subtitle {
        font-size: 0.9rem;
    }

    .detail-content {
        width: 95%;
        padding: var(--spacing-md);
        max-height: 85vh;
        overflow-y: auto;
    }

    .detail-icon {
        font-size: 3rem;
    }

    .detail-title {
        font-size: 1.5rem;
    }

    .lock-indicator {
        flex-direction: column;
        text-align: center;
    }

    .lock-icon {
        font-size: 2rem;
    }

    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .feature-card {
        padding: var(--spacing-sm);
    }

    .feature-icon {
        font-size: 2rem;
    }

    .category-title {
        font-size: 1.3rem;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-sm);
    }

    .feature-content h3 {
        font-size: 1rem;
        margin-bottom: var(--spacing-xs);
    }

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

    .vote-count {
        margin-top: var(--spacing-xs);
    }

    /* Participation section */
    .participation-form {
        padding: var(--spacing-md);
    }

    .community-links {
        flex-direction: column;
    }

    .community-link {
        width: 100%;
        text-align: center;
    }

    /* Feedback */
    .feedback-card {
        padding: var(--spacing-md);
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .footer-links {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .social-links {
        justify-content: center;
    }
}

/* Mobile portrait (320px - 480px) */
@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
        --spacing-md: 1rem;
    }

    body {
        font-size: 14px;
    }

    h1 {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    h2 {
        font-size: 1.4rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    section {
        padding: var(--spacing-lg) 0;
    }

    /* Language selector - smaller on mobile */
    .language-selector {
        top: 10px;
        right: 10px;
    }

    .language-selector select {
        font-size: 0.85rem;
        padding: 6px 10px;
    }

    /* Hero section */
    .hero {
        padding: var(--spacing-md) 0;
    }

    .hero-title {
        font-size: 1.4rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-cta {
        gap: var(--spacing-xs);
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    #equityChart {
        height: 150px;
    }

    /* Signal section */
    .signal-card {
        padding: var(--spacing-sm);
    }

    .signal-badge {
        font-size: 1.1rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .signal-icon {
        font-size: 1.5rem;
    }

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

    .signal-meta p {
        font-size: 0.85rem;
    }

    .indicator-row {
        padding: var(--spacing-xs) 0;
    }

    .indicator-name {
        font-size: 0.9rem;
    }

    .indicator-value {
        font-size: 1rem;
    }

    .indicator-interpretation {
        font-size: 0.8rem;
    }

    .signal-light {
        width: 50px;
        height: 50px;
    }

    .signal-status {
        font-size: 0.9rem;
    }

    .history-text {
        font-size: 0.9rem;
    }

    .disclaimer {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    /* Comparison section */
    .comparison-column {
        padding: var(--spacing-sm);
    }

    .comparison-column h3 {
        font-size: 1.1rem;
    }

    .comparison-column li {
        font-size: 0.85rem;
        padding: var(--spacing-xs) 0;
    }

    /* Modal */
    .modal-content {
        width: 95%;
        padding: var(--spacing-sm);
    }

    .modal-content h3 {
        font-size: 1.2rem;
    }

    .indicator-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .indicator-name,
    .indicator-value {
        font-size: 0.9rem;
    }

    /* Methodology */
    .step {
        padding: var(--spacing-sm);
    }

    .step-icon {
        font-size: 2rem;
        margin-bottom: var(--spacing-xs);
    }

    .step-title {
        font-size: 1rem;
    }

    .step-description {
        font-size: 0.85rem;
    }

    /* Features */
    .section-subtitle {
        font-size: 1rem;
    }

    .feature-item {
        padding: var(--spacing-sm);
    }

    .feature-content h3 {
        font-size: 0.95rem;
    }

    .feature-content p {
        font-size: 0.85rem;
    }

    .btn-vote {
        font-size: 0.85rem;
        padding: 8px 16px;
    }

    /* Forms */
    .participation-form,
    .feedback-card {
        padding: var(--spacing-sm);
    }

    .form-group label {
        font-size: 0.9rem;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 0.9rem;
        padding: 10px 12px;
    }

    .checkbox-container {
        font-size: 0.85rem;
    }

    /* Stats */
    .stats-number {
        font-size: 1.5rem;
    }

    .feedback-stats p,
    .encouragement {
        font-size: 0.85rem;
    }

    /* Footer */
    .footer {
        padding: var(--spacing-md) 0;
    }

    .footer-links a {
        font-size: 0.85rem;
    }

    .footer-tagline p {
        font-size: 0.85rem;
        padding: 0 var(--spacing-xs);
    }

    .social-icon {
        width: 35px;
        height: 35px;
    }
}

/* Extra small devices (< 360px) */
@media (max-width: 360px) {
    h1 {
        font-size: 1.3rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 1.2rem;
    }

    .hero-subtitle {
        font-size: 0.85rem;
    }

    .signal-card,
    .feedback-card,
    .participation-form {
        padding: var(--spacing-xs);
    }

    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}

/* Landscape mode optimization for mobile */
@media (max-height: 500px) and (orientation: landscape) {
    section {
        padding: var(--spacing-md) 0;
    }

    .hero {
        padding: var(--spacing-sm) 0;
    }

    .signal-light {
        width: 40px;
        height: 40px;
    }

    .modal-content {
        max-height: 90vh;
        overflow-y: auto;
    }
}

/* Print styles */
@media print {
    .language-selector,
    .hero-cta,
    .btn,
    .btn-vote,
    .btn-link,
    form,
    .social-links {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    section {
        page-break-inside: avoid;
    }
}