/* ========================================
   BrainviaTech - Styles CSS
   Design moderne, responsive et conversion-focused
   ======================================== */

/* Variables CSS pour cohérence */
:root {
    /* Couleurs principales */
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #059669;
    --accent-color: #f97316;
    --accent-light: #fb923c;
    
    /* Couleurs neutres */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typographie */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Bordures */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--gray-800);
    background-color: var(--white);
    font-weight: 400;
}

/* Typographie pour les titres */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--gray-900);
}

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

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

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--gray-900);
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
}

/* ========================================
   HERO SECTION - ULTRA PRO
   ======================================== */
.hero {
    min-height: 100vh;
    padding: 8rem 0 4rem;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(30, 64, 175, 0.1) 0%, 
        rgba(5, 150, 105, 0.05) 50%, 
        rgba(249, 115, 22, 0.08) 100%);
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(30, 64, 175, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(5, 150, 105, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero .container {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--spacing-5xl);
    }
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 50px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
    animation: pulse 2s infinite;
}

.badge-icon {
    font-size: var(--font-size-lg);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
}

.hero-title-highlight {
    position: relative;
    display: inline-block;
}

.highlight-text {
    color: var(--primary-color);
    position: relative;
    z-index: 2;
}

.highlight-underline {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light));
    border-radius: 4px;
    z-index: 1;
    animation: underline 1s ease-out 0.5s both;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    font-weight: 400;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.btn-hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
    transition: all 0.3s ease;
    overflow: hidden;
}

.btn-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-hero:hover::before {
    left: 100%;
}

.btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(30, 64, 175, 0.4);
}

.btn-icon {
    font-size: var(--font-size-xl);
}

.btn-arrow {
    font-size: var(--font-size-xl);
    transition: transform 0.3s ease;
}

.btn-hero:hover .btn-arrow {
    transform: translateX(4px);
}

.hero-guarantee {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.guarantee-icon {
    color: var(--secondary-color);
    font-weight: 700;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-dashboard {
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.dashboard-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.dashboard-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-400);
}

.dashboard-dots span:first-child {
    background: var(--accent-color);
}

.dashboard-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.dashboard-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.metric-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.metric-icon {
    font-size: var(--font-size-xl);
}

.metric-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2px;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    font-weight: 500;
}

.dashboard-chart {
    padding: var(--spacing-lg);
    position: relative;
    height: 80px;
}

.chart-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 1px;
}

.chart-points {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
}

.point {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-300);
    transition: all 0.3s ease;
}

.point.active {
    background: var(--primary-color);
    transform: scale(1.5);
    box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.2);
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .dashboard-content {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   BOUTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: var(--font-size-base);
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* ========================================
   SECTIONS GÉNÉRALES
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 400;
}

/* ========================================
   SERVICES SECTION - ULTRA MODERNE
   ======================================== */
.services {
    padding: var(--spacing-5xl) 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.services-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.services-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(30, 64, 175, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(5, 150, 105, 0.03) 0%, transparent 50%);
}

.services .container {
    position: relative;
    z-index: 2;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 50px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.service-card-primary {
    border-color: var(--primary-color);
}

.service-card-secondary {
    border-color: var(--secondary-color);
}

.service-card-accent {
    border-color: var(--accent-color);
}

.service-header {
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.service-icon {
    position: relative;
}

.icon-wrapper {
    position: relative;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
}

.service-card:hover .icon-wrapper {
    transform: scale(1.1);
}

.icon {
    font-size: 2rem;
    z-index: 2;
    position: relative;
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-lg);
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
    transition: all 0.3s ease;
    z-index: 1;
}

.service-card:hover .icon-glow {
    opacity: 0.1;
    transform: translate(-50%, -50%) scale(1.2);
}

.service-badge {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-card-secondary .service-badge {
    background: var(--secondary-color);
}

.service-card-accent .service-badge {
    background: var(--accent-color);
}

.service-content {
    padding: 0 var(--spacing-2xl) var(--spacing-xl);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.service-description {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
}

.service-features {
    margin-bottom: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.feature-icon {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: var(--font-size-sm);
}

.feature-text {
    color: var(--gray-700);
    font-weight: 500;
}

.service-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
}

.stat {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-footer {
    padding: var(--spacing-lg) var(--spacing-2xl) var(--spacing-2xl);
    border-top: 1px solid var(--gray-100);
}

.service-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.2);
}

.service-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
}

.cta-arrow {
    font-size: var(--font-size-lg);
    transition: transform 0.3s ease;
}

.service-cta:hover .cta-arrow {
    transform: translateX(4px);
}

.service-card-secondary .service-cta {
    background: linear-gradient(135deg, var(--secondary-color), #10b981);
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.2);
}

.service-card-secondary .service-cta:hover {
    box-shadow: 0 8px 25px rgba(5, 150, 105, 0.3);
}

.service-card-accent .service-cta {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.2);
}

.service-card-accent .service-cta:hover {
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.3);
}

/* ========================================
   VALUES SECTION - DESIGN PREMIUM
   ======================================== */
.values {
    padding: var(--spacing-5xl) 0;
    background: var(--gray-50);
    position: relative;
    overflow: hidden;
}

.values-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.values-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(30, 64, 175, 0.02) 0%, 
        rgba(5, 150, 105, 0.02) 50%, 
        rgba(249, 115, 22, 0.02) 100%);
}

.values-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(30, 64, 175, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(5, 150, 105, 0.05) 0%, transparent 50%);
}

.values .container {
    position: relative;
    z-index: 2;
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
}

.value-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.value-card:hover::before {
    transform: scaleX(1);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.value-card-premium {
    border-color: var(--primary-color);
}

.value-card-success {
    border-color: var(--secondary-color);
}

.value-card-innovation {
    border-color: var(--accent-color);
}

.value-header {
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.value-icon {
    position: relative;
}

.value-icon .icon-wrapper {
    position: relative;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
}

.value-card:hover .icon-wrapper {
    transform: scale(1.1);
}

.value-icon .icon {
    font-size: 2rem;
    z-index: 2;
    position: relative;
}

.value-icon .icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-lg);
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
    transition: all 0.3s ease;
    z-index: 1;
}

.value-card:hover .icon-glow {
    opacity: 0.1;
    transform: translate(-50%, -50%) scale(1.2);
}

.value-badge {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.value-card-success .value-badge {
    background: var(--secondary-color);
}

.value-card-innovation .value-badge {
    background: var(--accent-color);
}

.value-content {
    padding: 0 var(--spacing-2xl) var(--spacing-xl);
}

.value-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.value-description {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
}

.value-features {
    margin-bottom: var(--spacing-lg);
}

.value-features .feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.value-features .feature-icon {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: var(--font-size-sm);
}

.value-features .feature-text {
    color: var(--gray-700);
    font-weight: 500;
}

.value-stats {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
}

.value-stats .stat {
    text-align: center;
    flex: 1;
}

.value-stats .stat-number {
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.value-stats .stat-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */
.testimonials {
    padding: var(--spacing-5xl) 0;
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.testimonial-card {
    background: var(--gray-50);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    border-left: 4px solid var(--primary-color);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    color: var(--gray-700);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

.author-name {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.author-title {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--gray-600);
    font-weight: 500;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* ========================================
   CASE STUDIES SECTION
   ======================================== */
.case-studies {
    padding: var(--spacing-5xl) 0;
    background: var(--white);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.case-study-card {
    background: var(--gray-50);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.case-study-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.case-study-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.case-study-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
    flex: 1;
}

.case-study-results {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.result-badge {
    background: var(--accent-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.case-study-description {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.case-study-details {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.detail-item {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.detail-item strong {
    color: var(--gray-900);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    padding: var(--spacing-5xl) 0;
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.contact-info p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.contact-icon {
    font-size: var(--font-size-xl);
    margin-top: 2px;
}

.contact-text {
    color: var(--gray-700);
}

.contact-text strong {
    color: var(--gray-900);
}

/* ========================================
   FORMULAIRE
   ======================================== */
.contact-form {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
}

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

.form-label {
    display: block;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease;
    font-family: inherit;
}

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

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: #dc2626;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: none;
}

.form-error.show {
    display: block;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo-img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.footer-logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--white);
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.6;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-contact p {
    margin-bottom: var(--spacing-sm);
    color: var(--gray-400);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--gray-400);
}

/* ========================================
   RESPONSIVE & UTILITAIRES
   ======================================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .btn-large {
        padding: var(--spacing-sm) var(--spacing-xl);
        font-size: var(--font-size-base);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* États de focus pour l'accessibilité */
.btn:focus,
.form-input:focus,
.form-textarea:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer {
        display: none;
    }
    
    .hero {
        padding: 2rem 0;
    }
}