/* Variables CSS modernes */
:root {
    /* Couleurs principales */
    --primary: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Couleurs de texte */
    --text-primary: #ffffff;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dark: #1e293b;
    
    /* Couleurs de fond */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-overlay: rgba(15, 23, 42, 0.95);
    
    /* Bordures */
    --border: #475569;
    --border-light: #64748b;
    --border-focus: #3b82f6;
    
    /* Ombres */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Dégradés */
    --gradient-primary: linear-gradient(135deg, #3b82f6, #1d4ed8);
    --gradient-secondary: linear-gradient(135deg, #ec4899, #be185d);
    --gradient-accent: linear-gradient(135deg, #f59e0b, #d97706);
    --gradient-success: linear-gradient(135deg, #10b981, #059669);
    --gradient-bg: linear-gradient(135deg, #0f172a, #1e293b);
    
    /* Rayons de bordure */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Espacements */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);J
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Navigation améliorée */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all var(--transition-normal);
    border-bottom: 1px solid var(--border);
}

.navbar.scrolled {
    background: var(--bg-overlay);
    box-shadow: var(--shadow-lg);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.nav-logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 40px;
    width: auto;
    border-radius: var(--radius-md);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 80%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.hamburger:hover {
    background: rgba(59, 130, 246, 0.1);
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

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

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

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

/* Section Hero améliorée */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-bg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%233b82f6" stop-opacity="0.1"/><stop offset="100%" stop-color="%233b82f6" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>');
    background-size: cover;
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-xl);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::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 var(--transition-slow);
}

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

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

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

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

.btn-secondary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 1s ease-out;
}

.mockup-container {
    position: relative;
    width: 350px;
    height: 250px;
    animation: float 6s ease-in-out infinite;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border);
}

.mockup-header {
    height: 40px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-md);
    gap: var(--space-sm);
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--border-light);
}

.mockup-dot:nth-child(1) { background: var(--error); }
.mockup-dot:nth-child(2) { background: var(--warning); }
.mockup-dot:nth-child(3) { background: var(--success); }

.mockup-content {
    padding: var(--space-xl);
}

.mockup-line {
    height: 8px;
    background: var(--border);
    margin-bottom: var(--space-md);
    border-radius: var(--radius-sm);
    animation: pulse 2s ease-in-out infinite;
}

.mockup-line.short {
    width: 60%;
}

.mockup-line:nth-child(2) { animation-delay: 0.5s; }
.mockup-line:nth-child(3) { animation-delay: 1s; }

/* Sections communes */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Section Services améliorée */
.services {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: var(--text-primary);
    font-size: 2rem;
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Section Portfolio améliorée */
.portfolio {
    padding: var(--space-3xl) 0;
    background: var(--bg-primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.portfolio-item {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border);
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary);
}

.portfolio-image {
    height: 250px;
    background: var(--gradient-primary);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

/* Support pour image de fond personnalisée */
.portfolio-image.has-image {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: scroll;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.portfolio-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 2;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-link {
    color: var(--text-primary);
    font-size: 2rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    padding: var(--space-md);
    border-radius: var(--radius-full);
    background: rgba(59, 130, 246, 0.2);
}

.portfolio-link:hover {
    transform: scale(1.2);
    background: var(--primary);
}

.portfolio-content {
    padding: var(--space-xl);
}

.portfolio-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.portfolio-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.portfolio-tags {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.tag {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Section Tarifs améliorée */
.pricing {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
    border: 1px solid var(--border);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.price {
    margin-bottom: var(--space-xl);
}

.currency {
    font-size: 1.5rem;
    color: var(--text-muted);
    vertical-align: top;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    padding: var(--space-md) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.pricing-features i {
    color: var(--success);
    font-size: 1.2rem;
}

/* Section Contact améliorée */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
}

.contact-item:hover {
    transform: translateX(8px);
    border-color: var(--primary);
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

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

.contact-form {
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-normal);
    font-family: inherit;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    transform: translateY(-1px);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.field-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.field-error::before {
    content: '⚠';
    font-size: 0.75rem;
}

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

/* Footer amélioré */
.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--space-3xl) 0 var(--space-lg);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-lg);
}

.footer-logo .logo-img {
    height: 35px;
    width: auto;
    border-radius: var(--radius-md);
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--space-sm);
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-normal);
    padding: var(--space-xs) 0;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    width: 44px;
    height: 44px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: var(--space-lg);
    text-align: center;
    color: var(--text-muted);
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

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

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--bg-overlay);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-xl);
        padding: var(--space-xl) 0;
        border-top: 1px solid var(--border);
    }

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

    .nav-menu li {
        margin: var(--space-sm) 0;
    }

    .nav-menu .nav-link {
        display: block;
        padding: var(--space-md) var(--space-xl);
        margin: 0 var(--space-lg);
        border-radius: var(--radius-md);
        transition: all var(--transition-normal);
    }

    .nav-menu .nav-link:hover {
        background: rgba(59, 130, 246, 0.1);
        transform: translateX(8px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xl);
    }

    .hero-buttons {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: none;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .service-card,
    .pricing-card,
    .contact-form {
        padding: var(--space-lg);
    }
}

/* Améliorations UX */
.btn:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Menu ouvert - empêcher le scroll */
body.menu-open {
    overflow: hidden;
}

/* Amélioration des transitions de la navbar */
.navbar {
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: var(--bg-overlay);
    box-shadow: var(--shadow-lg);
}

/* Loading states */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Smooth scrolling pour les ancres */
html {
    scroll-padding-top: 80px;
}

/* Amélioration de l'accessibilité */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Mode sombre forcé */
@media (prefers-color-scheme: light) {
    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --text-primary: #ffffff;
    }
}