:root {
    /* Palette moderne et sophistiquée */
    --primary-blue: #2563EB;
    --primary-indigo: #4F46E5;
    --accent-emerald: #10B981;
    --accent-orange: #F59E0B;
    --accent-rose: #EC4899;
    --neutral-slate: #64748B;
    
    /* Tons neutres modernes */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Gradients modernes */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-indigo) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-emerald) 0%, var(--primary-blue) 100%);
    --gradient-warm: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-rose) 100%);
    --gradient-surface: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    
    /* Typography moderne */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-display: 'Space Grotesk', 'Inter', sans-serif;
    
    /* Spacing système 8px */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border radius moderne */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    
    /* Ombres subtiles et modernes */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-colored: 0 10px 15px -3px rgba(37, 99, 235, 0.1), 0 4px 6px -2px rgba(37, 99, 235, 0.05);
    
    /* Transitions fluides */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Utility Classes */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.gradient-text-accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.gradient-text-warm {
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Navigation moderne */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.2);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    border-bottom-color: rgba(15, 23, 42, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo .logo {
    height: 45px;
    width: auto;
    transition: var(--transition-fast);
}

.nav-logo .logo-light {
    display: block;
}

.nav-logo .logo-dark {
    display: none;
}

/* Logo switching for scrolled state */
.navbar.scrolled .nav-logo .logo-light {
    display: none;
}

.navbar.scrolled .nav-logo .logo-dark {
    display: block;
}
.nav-logo .logo:hover {
    transform: scale(1.02);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-8);
}

.nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
}

/* Text color for scrolled state */
.navbar.scrolled .nav-link {
    color: var(--gray-700);
}
.nav-link:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.15);
}

.navbar.scrolled .nav-link:hover {
    color: var(--gray-900);
    background: var(--gray-50);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gray-900);
    transition: var(--transition-fast);
    transform: translateX(-50%);
    border-radius: var(--radius-sm);
}

.nav-link:hover::after {
    width: 70%;
}

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

.bar {
    width: 24px;
    height: 2px;
    background: rgba(255, 255, 255, 0.9);
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* Hamburger color for scrolled state */
.navbar.scrolled .bar {
    background: var(--gray-700);
}
/* Hero Section moderne */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-surface);
    padding: 120px 0 var(--space-24);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(79, 70, 229, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero-bg-elements {
    display: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: slideInLeft 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-8);
    border: 1px solid var(--gray-200);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent-emerald);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-family-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.6s ease-out 0.4s both;
    letter-spacing: -0.02em;
}

.highlight {
    position: relative;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    line-height: 1.7;
    animation: fadeInUp 0.6s ease-out 0.6s both;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    animation: fadeInUp 0.6s ease-out 0.8s both;
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    animation: fadeInUp 0.6s ease-out 1s both;
}

.stat-item {
    text-align: left;
    padding: var(--space-4);
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    display: block;
    font-family: var(--font-family-display);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--space-1);
    font-weight: 500;
}

/* Hero Visual moderne */
.hero-visual {
    position: relative;
    height: 500px;
    animation: slideInRight 0.8s ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    position: absolute;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: var(--transition-normal);
    animation: gentleFloat 8s ease-in-out infinite;
    color: var(--gray-700);
    min-width: 160px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.floating-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.card-1 {
    top: 15%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 15%;
    animation-delay: 3s;
}

.card-3 {
    bottom: 20%;
    left: 25%;
    animation-delay: 6s;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
    display: block;
    line-height: 1;
}

.card-title {
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-family-display);
    color: var(--gray-800);
}

.gradient-shape {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.1;
    z-index: -1;
}

/* Buttons modernes */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    position: relative;
    font-family: var(--font-family);
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    width: 16px;
    height: 16px;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-6);
    border: 1px solid var(--gray-200);
}

.section-title {
    font-family: var(--font-family-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Services Section */
.services {
    padding: var(--space-24) 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    position: relative;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--white);
    transition: var(--transition-normal);
}

.service-card:nth-child(2n) .service-icon {
    background: var(--gradient-accent);
}

.service-card:nth-child(3n) .service-icon {
    background: var(--gradient-warm);
}

.service-icon:hover {
    transform: scale(1.05);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    font-family: var(--font-family-display);
}

.service-description {
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    flex-grow: 1;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: var(--space-2) 0;
    color: var(--gray-600);
    position: relative;
    padding-left: var(--space-6);
    font-weight: 500;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-emerald);
    font-weight: bold;
    font-size: 1rem;
}

/* Projects Section - SLIDER AMÉLIORÉ RESPONSIVE */
.projects {
    padding: var(--space-24) 0;
    background: var(--gray-50);
}

.projects-slider-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--radius-2xl);
    padding: var(--space-6) 0;
}

.projects-slider {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    touch-action: pan-y;
}

.project-slide {
    min-width: 50%;
    flex-shrink: 0;
    padding: 0 var(--space-4);
    display: flex;
    align-items: stretch;
}

.project-slide .project-modern-card {
    margin: 0 auto;
    max-width: 450px;
    width: 100%;
}

.project-modern-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    border: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    min-height: 550px;
    margin: var(--space-6) var(--space-3) var(--space-3) var(--space-3);
}

.project-modern-card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: var(--shadow-xl);
    border-color: var(--gray-900);
}

.project-modern-header {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: var(--gray-100);
}

.project-modern-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-img-modern {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform var(--transition-slow);
}

.project-modern-card:hover .project-img-modern {
    transform: scale(1.02);
}

.project-link-modern {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition-normal);
    opacity: 0;
    transform: translateY(-10px);
    background: var(--white);
    border-radius: var(--radius-lg);
    color: var(--gray-700);
    box-shadow: var(--shadow-md);
}

.project-modern-card:hover .project-link-modern {
    opacity: 1;
    transform: translateY(0);
}

.project-link-modern svg {
    width: 18px;
    height: 18px;
}

.project-modern-content {
    padding: var(--space-8);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-modern-title {
    font-family: var(--font-family-display);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    line-height: 1.3;
}

.project-modern-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--space-6);
    flex-grow: 1;
}

.project-modern-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.project-tag {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 600;
    transition: var(--transition-fast);
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.project-tag:hover {
    background: var(--gray-200);
    transform: translateY(-1px);
}

.project-modern-achievements {
    border-top: 1px solid var(--gray-200);
    padding-top: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.achievement-modern {
    color: var(--gray-600);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 500;
}

.achievement-modern::before {
    content: '→';
    color: var(--gray-900);
    font-weight: bold;
}

.achievement-modern strong {
    color: var(--gray-900);
    font-weight: 700;
}

/* Slider Navigation - AMÉLIORÉ RESPONSIVE */
.slider-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    margin-top: var(--space-8);
    padding: var(--space-4);
    flex-wrap: wrap;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--white);
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.slider-btn:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-900);
    color: var(--gray-900);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.slider-btn:active:not(:disabled) {
    transform: scale(0.95);
}

.slider-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    background: var(--gray-100);
    border-color: var(--gray-200);
}

.slider-btn svg {
    width: 22px;
    height: 22px;
}

.slider-dots {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: var(--transition-fast);
    border: 2px solid transparent;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.slider-dot:hover {
    background: var(--gray-400);
    transform: scale(1.2);
}

.slider-dot.active {
    background: var(--gray-900);
    transform: scale(1.3);
    border-color: var(--gray-200);
}

/* Contact Section */
.contact {
    padding: var(--space-24) 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: var(--space-4);
}

.contact-info .section-subtitle {
    text-align: left;
    margin-bottom: var(--space-8);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.contact-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    transition: var(--transition-normal);
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.contact-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

.contact-item:nth-child(2n) .contact-icon {
    background: var(--gradient-accent);
}

.contact-item:nth-child(3n) .contact-icon {
    background: var(--gradient-warm);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-text h4 {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
    font-family: var(--font-family-display);
}

.contact-text p {
    color: var(--gray-600);
    line-height: 1.5;
}

/* Contact Form */
.contact-form-container {
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    background: var(--white);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.875rem;
}

.glass-input {
    padding: var(--space-3);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    background: var(--white);
    color: var(--gray-900);
}

.glass-input:focus {
    outline: none;
    border-color: var(--gray-900);
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.1);
}

.glass-input::placeholder {
    color: var(--gray-400);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand .footer-logo {
    height: 45px;
    width: auto;
    margin-bottom: var(--space-4);
    filter: brightness(0) invert(1);
}

.footer-description {
    line-height: 1.6;
    max-width: 300px;
}

.footer-links h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: var(--space-4);
    font-family: var(--font-family-display);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

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

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

.footer-contact h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: var(--space-4);
    font-family: var(--font-family-display);
}

.footer-contact p {
    margin-bottom: var(--space-2);
    line-height: 1.5;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--space-4);
    text-align: center;
    color: var(--gray-500);
}

.footer-bottom p {
    margin-bottom: var(--space-1);
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Responsive Design - SLIDER OPTIMISÉ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }
    
    .hero-visual {
        height: 400px;
        margin-top: var(--space-8);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
    
    /* Slider améliorations tablette */
    .projects-slider-container {
        padding: var(--space-4) 0;
    }
    
    .project-modern-card {
        min-height: 500px;
    }
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
        padding: var(--space-8) 0;
        border-top: 1px solid rgba(15, 23, 42, 0.2);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* SLIDER MOBILE OPTIMISÉ */
    .projects-slider-container {
        max-width: 95%;
        padding: var(--space-3) 0;
        margin: 0 auto;
    }
    
    .project-slide {
        min-width: 100%;
        padding: 0 var(--space-2);
        display: block;
    }

    .project-slide .project-modern-card {
        max-width: 100%;
        margin: var(--space-3) auto;
        min-height: 450px;
    }
    
    .project-modern-header {
        height: 200px;
    }
    
    .project-modern-content {
        padding: var(--space-6);
    }
    
    .project-modern-title {
        font-size: 1.25rem;
        line-height: 1.3;
    }
    
    .project-modern-tags {
        gap: var(--space-1);
    }
    
    .project-tag {
        font-size: 0.7rem;
        padding: var(--space-1) var(--space-2);
    }
    
    /* Navigation mobile améliorée */
    .slider-navigation {
        gap: var(--space-6);
        margin-top: var(--space-6);
        padding: var(--space-3);
    }
    
    .slider-btn {
        width: 52px;
        height: 52px;
        border-width: 3px;
        box-shadow: var(--shadow-lg);
    }
    
    .slider-btn svg {
        width: 24px;
        height: 24px;
    }
    
    .slider-dot {
        width: 14px;
        height: 14px;
        border-width: 3px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-stats {
        justify-content: center;
        gap: var(--space-4);
        flex-wrap: wrap;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .floating-card {
        min-width: 140px;
        padding: var(--space-4);
    }
    
    .card-icon {
        font-size: 2rem;
    }
    
    .card-title {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .nav-container {
        padding: 0 var(--space-4);
    }
    
    .hero {
        padding: 100px 0 var(--space-16);
    }
    
    .hero-container {
        padding: 0 var(--space-4);
    }
    
    .service-card,
    .contact-form-container {
        padding: var(--space-6);
    }
    
    /* SLIDER TRÈS PETIT ÉCRAN */
    .projects-slider-container {
        max-width: 100%;
        padding: var(--space-2) 0;
        border-radius: var(--radius-lg);
    }
    
    .project-slide {
        padding: 0 var(--space-1);
    }
    
    .project-slide .project-modern-card {
        margin: var(--space-2) auto;
        min-height: 400px;
    }
    
    .project-modern-content {
        padding: var(--space-4);
    }
    
    .project-modern-title {
        font-size: 1.125rem;
    }
    
    .project-modern-description {
        font-size: 0.9rem;
        margin-bottom: var(--space-4);
    }
    
    .project-modern-header {
        height: 180px;
    }
    
    .slider-navigation {
        gap: var(--space-4);
        margin-top: var(--space-4);
    }
    
    .slider-btn {
        width: 48px;
        height: 48px;
    }
    
    .slider-dot {
        width: 12px;
        height: 12px;
    }
    
    .floating-card {
        display: none;
    }
    
    .hero-visual {
        display: none;
    }
}

/* Support tactile amélioré */
@media (hover: none) and (pointer: coarse) {
    .project-modern-card:hover {
        transform: none;
    }
    
    .slider-btn:hover {
        transform: none;
    }
    
    .slider-btn:active {
        transform: scale(0.9);
        background: var(--gray-100);
    }
    
    .slider-dot:hover {
        transform: none;
    }
    
    .slider-dot:active {
        transform: scale(1.1);
    }
}