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

:root {
    --primary: #6B46C1;
    --primary-light: #8B5CF6;
    --primary-dark: #553C9A;
    --secondary: #3B82F6;
    --accent: #EC4899;
    
    --gradient-primary: linear-gradient(135deg, #6B46C1 0%, #3B82F6 100%);
    --gradient-accent: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    --gradient-dark: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
    
    --white: #FFFFFF;
    --black: #0F0F0F;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-700: #374151;
    --gray-900: #111827;
    
    --container: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

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

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

/* ==================== */
/* NAVIGATION - CORRIGÉ */
/* ==================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(107, 70, 193, 0.1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    overflow: visible;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.65rem;
    color: var(--gray-700);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 2px;
    line-height: 1.5;
    overflow: visible;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    border-bottom: none;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(107, 70, 193, 0.05);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(107, 70, 193, 0.1);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==================== */
/* HERO SECTION - AMÉLIORÉ */
/* ==================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        #1E1B4B 0%, 
        #312E81 30%, 
        #1E3A8A 60%,
        #1E1B4B 100%
    );
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 1000px;
    padding: var(--spacing-md);
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    font-family: var(--font-display);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 100%);
    color: var(--white);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

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

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #8B5CF6 0%, #3B82F6 50%, #EC4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ==================== */
/* SERVICES SECTION */
/* ==================== */

.services {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

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

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(107, 70, 193, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-700);
    max-width: 600px;
    margin: 0 auto;
}

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

.service-card {
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 20px;
    border: 2px solid var(--gray-100);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(107, 70, 193, 0.15);
}

.service-card.featured {
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
    border-color: var(--primary);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.service-card p {
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.service-list {
    list-style: none;
    padding: 0;
}

.service-list li {
    padding: 0.5rem 0;
    color: var(--gray-700);
    position: relative;
    padding-left: 1.5rem;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ==================== */
/* ABOUT SECTION */
/* ==================== */

.about {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.lead {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.feature-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.feature-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    flex-shrink: 0;
}

.feature-item h4 {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.feature-item p {
    color: var(--gray-700);
    font-size: 0.95rem;
}

.about-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.visual-card {
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 20px;
    border: 2px solid var(--gray-100);
    text-align: center;
    transition: var(--transition);
}

.visual-card:hover {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(107, 70, 193, 0.15);
}

.visual-card:nth-child(3) {
    grid-column: span 2;
}

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

.stat-number-big {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== */
/* PROCESS SECTION */
/* ==================== */

.process {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

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

.process-step {
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 20px;
    border: 2px solid var(--gray-100);
    transition: var(--transition);
    text-align: center;
}

.process-step:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(107, 70, 193, 0.15);
}

.step-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}


/* ==================== */
/* WHY CHOOSE SECTION */
/* ==================== */

.why-choose {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

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

.why-card {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
    border-radius: 20px;
    border: 2px solid var(--gray-100);
    transition: var(--transition);
}

.why-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(107, 70, 193, 0.15);
    background: var(--white);
}

.why-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.why-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.why-card p {
    color: var(--gray-700);
    line-height: 1.8;
}

.stat-symbol {
    font-size: 2rem;
    margin-left: 0.25rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.process-step h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.process-step p {
    color: var(--gray-700);
    line-height: 1.8;
}

/* ==================== */
/* CTA SECTION */
/* ==================== */

.cta {
    padding: var(--spacing-xl) 0;
    background: var(--gradient-dark);
    text-align: center;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

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

.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-sm);
    overflow: visible;
}

.footer-desc {
    color: var(--gray-300);
    line-height: 1.8;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-col a {
    color: var(--gray-300);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--gray-300);
}

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        transition: left 0.3s ease;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        gap: 0;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm);
        margin-bottom: 0.5rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: var(--spacing-md);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-visual {
        grid-template-columns: 1fr;
    }
    
    .visual-card:nth-child(3) {
        grid-column: span 1;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}