/* Variables globales */
:root {
    --primary: #0A66C2;
    --primary-dark: #004182;
    --accent: #00A0DC;
    --text-dark: #1A1A1A;
    --text-light: #666;
    --background: #F5F5F5;
    --white: #FFFFFF;
    --success: #22C55E;
    --warning: #F59E0B;
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--background);
}

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

/* Navigation */
.top-nav {
    background: var(--white);
    padding: 15px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.nav-buttons {
    display: flex;
    gap: 15px;
}

/* Boutons */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 16px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

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

.btn.large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn.mega {
    padding: 20px 40px;
    font-size: 20px;
    letter-spacing: 1px;
}

/* Hero Section */
.hero {
    padding: 160px 20px 100px;
    background: linear-gradient(135deg, var(--white) 0%, #F0F7FF 100%);
    text-align: center;
}

.mega-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(45deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-primary {
    margin-bottom: 40px;
}

.cta-subtitle {
    margin-top: 15px;
    color: var(--text-light);
}

/* Problem Section */
.problem-section {
    padding: 100px 0;
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.problem-card, .solution-card {
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.problem-card {
    background: #FFF5F5;
}

.solution-card {
    background: #F0FFF4;
}

.problem-list, .solution-list {
    list-style: none;
    margin-top: 20px;
}

.problem-list li, .solution-list li {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 500;
    padding-left: 30px;
    position: relative;
}

.problem-list li::before {
    content: "❌";
    position: absolute;
    left: 0;
}

.solution-list li::before {
    content: "✅";
    position: absolute;
    left: 0;
}

/* Social Proof */
.social-proof {
    padding: 60px 0;
    background: var(--primary-dark);
    color: var(--white);
}

.metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}

.metric h3 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 10px;
}

.metric p {
    font-size: 18px;
    opacity: 0.9;
}

/* Features */
.features {
    padding: 100px 0;
    background: var(--white);
}

.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature {
    text-align: center;
    padding: 40px;
    border-radius: 16px;
    background: #F8FAFC;
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-10px);
}

.feature i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
    background: #F8FAFC;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 60px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.testimonial {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    gap: 20px;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.testimonial-content p {
    font-size: 18px;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-content h4 {
    color: var(--primary);
    margin-bottom: 5px;
}

.position {
    color: var(--text-light);
}

/* FAQ */
.faq {
    padding: 100px 0;
    background: var(--white);
}

.faq h2 {
    text-align: center;
    margin-bottom: 60px;
}

.faq-grid {
    display: grid;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    padding: 30px;
    background: #F8FAFC;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.faq-item:hover {
    transform: translateX(10px);
}

.faq-item h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

/* Final CTA */
.final-cta {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.final-cta h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.offer {
    font-size: 24px;
    margin-bottom: 40px;
}

.guarantee {
    margin-top: 20px;
    font-size: 18px;
    opacity: 0.9;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
}

.footer-links h4 {
    margin-bottom: 20px;
}

.footer-links a {
    color: var(--white);
    opacity: 0.8;
    text-decoration: none;
    margin-bottom: 10px;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mega-title {
        font-size: 40px;
    }

    .problem-grid,
    .features-grid,
    .testimonials-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .metrics {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .nav-container {
        flex-direction: column;
        gap: 20px;
    }

    .btn.mega {
        padding: 15px 30px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 20px 60px;
    }

    .btn {
        width: 100%;
    }

    .testimonial {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 1s ease-out;
}

/* Utils */
.text-gradient {
    background: linear-gradient(45deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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