/* ========================================
   VARIABLES
   ======================================== */
:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --success: #4caf50;
    --warning: #ff9800;
    --danger: #f44336;
    --dark: #1a1a2e;
    --dark-light: #16213e;
    --light: #f8f9fa;
    --gray: #6c757d;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-hover: linear-gradient(135deg, var(--primary-dark) 0%, #5a67d8 100%);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-app {
    background: rgba(255,255,255,0.2);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    transition: var(--transition);
}

.btn-app:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.nav-brand i {
    font-size: 1.8rem;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu li a {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--primary);
}

.nav-menu li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    background: linear-gradient(135deg, #f5f7ff 0%, #eef2ff 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(102,126,234,0.1);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    color: var(--primary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.hero-text h2 {
    font-size: 2rem;
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--gray);
}

.hero-image {
    position: relative;
}

.floating-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: float 3s ease-in-out infinite;
}

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

.floating-card i {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.floating-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.floating-card p {
    color: var(--gray);
    margin-bottom: 1rem;
}

.price-info {
    border-top: 1px solid #eee;
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.price-info span {
    display: block;
    font-size: 0.875rem;
    color: var(--gray);
}

.price-info strong {
    font-size: 1.25rem;
    color: var(--primary);
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    line-height: 0;
}

/* ========================================
   PARTNERS SECTION
   ======================================== */
.partners {
    padding: 3rem 0;
    background: var(--white);
    border-bottom: 1px solid #eee;
}

.partners-title {
    text-align: center;
    color: var(--gray);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2rem;
}

.partners-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 3rem;
}

.partner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray);
    font-size: 1rem;
}

.partner i {
    font-size: 1.5rem;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    padding: 5rem 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.about-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.about-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.about-icon i {
    font-size: 2rem;
    color: var(--white);
}

.about-card h3 {
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--gray);
}

/* ========================================
   TOKENOMICS SECTION
   ======================================== */
.tokenomics {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.tokenomics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.token-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.token-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.token-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.token-info h3 {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 0.25rem;
}

.token-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.token-desc {
    font-size: 0.75rem;
    color: var(--gray);
}

.distribution {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
}

.distribution h3 {
    margin-bottom: 2rem;
}

.chart-container {
    max-width: 400px;
    margin: 0 auto 2rem;
}

.distribution-labels {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.label-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.color-box {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features {
    padding: 5rem 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature h3 {
    margin-bottom: 1rem;
}

.feature p {
    color: var(--gray);
}

/* ========================================
   ROADMAP SECTION
   ======================================== */
.roadmap {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--primary);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--white);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.timeline-marker.completed {
    background: var(--success);
    border-color: var(--success);
}

.timeline-marker.completed i {
    color: var(--white);
}

.timeline-marker.current {
    background: var(--warning);
    border-color: var(--warning);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255,152,0,0.4); }
    50% { box-shadow: 0 0 0 15px rgba(255,152,0,0); }
}

.timeline-marker.future {
    background: var(--gray);
    border-color: var(--gray);
}

.timeline-marker i {
    font-size: 1.2rem;
    color: var(--primary);
}

.timeline-content {
    width: 45%;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 5%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 5%;
}

.timeline-content h3 {
    margin-bottom: 1rem;
    color: var(--primary);
}

.timeline-content p {
    margin-bottom: 0.5rem;
    color: var(--gray);
    font-size: 0.875rem;
}

.timeline-date {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   HOW TO BUY SECTION
   ======================================== */
.how-to-buy {
    padding: 5rem 0;
    background: var(--white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: rgba(102,126,234,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.step-icon i {
    font-size: 2rem;
    color: var(--primary);
}

.step h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.step p {
    font-size: 0.875rem;
    color: var(--gray);
}

.buy-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.token-address {
    text-align: center;
    padding: 1rem;
    background: var(--light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.token-address p {
    font-size: 0.875rem;
    color: var(--gray);
}

.token-address code {
    font-family: monospace;
    font-size: 0.875rem;
    background: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.btn-copy-mini {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--primary);
    font-size: 1rem;
    transition: var(--transition);
}

.btn-copy-mini:hover {
    transform: scale(1.1);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    padding: 5rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.contact .section-header h2,
.contact .section-header p {
    color: var(--white);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255,255,255,0.1);
    border-radius: 30px;
    transition: var(--transition);
}

.social-link:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
}

.social-link i {
    font-size: 1.25rem;
}

.newsletter {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter h3 {
    margin-bottom: 0.5rem;
}

.newsletter p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.newsletter-form button {
    padding: 1rem 2rem;
    background: var(--white);
    color: var(--primary);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: #a0aec0;
    font-size: 0.875rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column ul li a {
    color: #a0aec0;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.875rem;
    color: #a0aec0;
}

.footer-bottom a {
    color: var(--primary);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        justify-content: flex-start;
    }
    
    .timeline-marker {
        left: 30px;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
        margin-right: 0 !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.show {
        display: flex;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-text h2 {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .buy-actions {
        flex-direction: column;
    }
}
/* ========================================
   PRIX ET NOTIFICATIONS
   ======================================== */
.price-value {
    font-family: monospace;
    font-size: 0.9rem;
}

.price-update {
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Animation pour le loader */
.loader {
    width: 20px;
    height: 20px;
    border: 2px solid var(--light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}
/* ========================================
   WHITEPAPER SECTION - VERSION CLAIRE
   ======================================== */
.whitepaper {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}

.whitepaper-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.whitepaper-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(102,126,234,0.15);
}

.whitepaper-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.whitepaper-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(102,126,234,0.1) 0%, rgba(118,75,162,0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.whitepaper-icon i {
    font-size: 2.5rem;
    color: var(--primary);
}

.whitepaper-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.whitepaper-version {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.whitepaper-description {
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 1rem 0;
    color: var(--gray);
}

.whitepaper-languages {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.lang-btn {
    background: var(--light);
    border: 1px solid #e2e8f0;
    padding: 0.5rem 1rem;
    border-radius: 30px;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.8rem;
    font-weight: 500;
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--gradient);
    color: var(--white);
    border-color: transparent;
}

.whitepaper-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

.whitepaper-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.whitepaper-stats .stat {
    text-align: center;
}

.whitepaper-stats .stat-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
}

.whitepaper-stats .stat-label {
    font-size: 0.7rem;
    color: var(--gray);
}

.whitepaper-preview {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(102,126,234,0.15);
}

.preview-card {
    text-align: center;
}

.preview-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.preview-card h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.preview-card ul {
    text-align: left;
    list-style: none;
    padding: 0;
}

.preview-card ul li {
    padding: 0.6rem 0;
    color: var(--gray);
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.preview-card ul li:last-child {
    border-bottom: none;
}

.preview-card ul li i {
    font-size: 0.9rem;
    margin-bottom: 0;
    color: var(--primary);
}

@media (max-width: 768px) {
    .whitepaper-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .whitepaper-buttons {
        flex-direction: column;
    }
    
    .whitepaper-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .whitepaper-stats {
        gap: 1rem;
    }
}

.whitepaper-stats .stat {
    text-align: center;
}

.whitepaper-stats .stat-value {
    font-size: 1rem;
    color: var(--primary);
}

.whitepaper-stats .stat-label {
    font-size: 0.65rem;
}

.whitepaper-preview {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0,243,255,0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
}

.preview-card {
    text-align: center;
}

.preview-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.preview-card h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.preview-card ul {
    text-align: left;
    list-style: none;
    padding: 0;
}

.preview-card ul li {
    padding: 0.5rem 0;
    color: var(--gray);
    border-bottom: 1px solid rgba(0,243,255,0.05);
    font-size: 0.85rem;
}

.preview-card ul li:last-child {
    border-bottom: none;
}

@media (max-width: 768px) {
    .whitepaper-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .whitepaper-buttons {
        flex-direction: column;
    }
    
    .whitepaper-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .whitepaper-stats {
        gap: 1rem;
    }
}
.footer-brand {
    text-align: left;
}

.footer-brand h3 {
    font-size: 1.3rem;
    letter-spacing: 3px;
    margin-bottom: 0.25rem;
    color: var(--white);
}

/* Supprimer .footer-brand i */

.footer-brand p {
    color: var(--gray);
    font-size: 0.7rem;
    letter-spacing: 1px;
}
.floating-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(0,243,255,0.2);
    box-shadow: 0 0 40px rgba(0,243,255,0.05);
    animation: float 4s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

/* Supprimer .floating-card i */

.floating-card h3 {
    font-size: 1.8rem;
    letter-spacing: 4px;
    margin-bottom: 0.25rem;
    color: var(--primary);
}

.floating-card p {
    color: var(--gray);
    font-size: 0.75rem;
    letter-spacing: 2px;
}
/* ========================================
   NAVIGATION - Avec logo personnalisé
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10,10,15,0.85);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0,243,255,0.15);
    padding: 0.5rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.nav-brand img {
    max-height: 45px;
    width: auto;
    transition: var(--transition);
}

.nav-brand img:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

/* Supprimer ou commenter les règles .nav-brand i et .nav-brand span si présentes */

/* ========================================
   LIVRE BLANC - BOUTONS DE LANGUE
   ======================================== */
.whitepaper-languages {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.lang-btn {
    background: var(--light);
    border: 1px solid #e2e8f0;
    padding: 0.6rem 1.2rem;
    border-radius: 40px;
    color: var(--gray);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn:hover {
    background: var(--gradient);
    color: var(--white);
    border-color: transparent;
    transform: translateY(-2px);
}

.lang-btn.active {
    background: var(--gradient);
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-sm);
}

.lang-btn i {
    font-size: 0.9rem;
}