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

:root {
    /* Couleurs principales */
    --primary-color: #1E3A8A;
    --secondary-color: #FF6B35;
    --accent-color: #3B82F6;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #F3F4F6;
    --border-color: #E5E7EB;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* Typographie */
    --font-family: '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: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* Conteneur principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background-color: #E55A2B;
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    border-color: var(--text-secondary);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.coming-soon {
    position: relative;
}

.coming-soon-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--secondary-color);
    color: white;
    font-size: var(--font-size-xs);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* Header */
.header {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

.nav-brand .logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Mockup */
.mockup-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup-screen {
    width: 100%;
    max-width: 500px;
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-heavy);
    overflow: hidden;
}

.mockup-header {
    height: 50px;
    background-color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
}

.mockup-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.mockup-logo {
    color: white;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.mockup-user {
    color: white;
    font-size: var(--font-size-xs);
}

.mockup-content {
    display: flex;
    height: 350px;
}

.mockup-sidebar {
    width: 120px;
    background-color: var(--bg-tertiary);
    padding: var(--spacing-sm);
    border-right: 1px solid var(--border-color);
}

.sidebar-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-item.active {
    background-color: var(--secondary-color);
    color: white;
}

.sidebar-item:hover:not(.active) {
    background-color: var(--bg-secondary);
}

.mockup-main {
    flex: 1;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
}

.mockup-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.mockup-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mockup-card {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.card-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

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

.card-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-xs);
}

.card-row:last-child {
    margin-bottom: 0;
}

.card-row span:first-child {
    color: var(--text-secondary);
}

.card-row span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

.success {
    color: #10B981 !important;
    font-weight: 600;
}

.price-large {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.mini-calepinage {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    background-color: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    height: 40px;
}

.mini-piece {
    border-radius: 2px;
}

.piece-a {
    width: 45%;
    height: 60%;
    background-color: var(--secondary-color);
}

.piece-b {
    width: 30%;
    height: 80%;
    background-color: var(--accent-color);
}

.piece-c {
    width: 20%;
    height: 50%;
    background-color: #10B981;
}

/* Sections communes */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--primary-color);
}

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

/* Problème & Solution */
.problem-solution {
    background-color: var(--bg-secondary);
}

.problem, .solution {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
}

.problem-icon {
    background-color: #FEF2F2;
}

.solution-icon {
    background-color: #F0FDF4;
}

.problem ul, .solution ul {
    list-style: none;
    padding: 0;
}

.problem li, .solution li {
    padding: var(--spacing-sm) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

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

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

/* Bénéfices */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.benefits-grid-extended {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.benefit-card {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    text-align: center;
    transition: transform var(--transition-normal);
    position: relative;
    border: 2px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
}

.benefit-number {
    position: absolute;
    top: -15px;
    left: -15px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--secondary-color), #E55A2B);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-medium);
}

.benefit-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.benefit-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.benefits-summary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: var(--spacing-3xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-heavy);
}

.benefits-summary h3 {
    color: white;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
}

.benefits-summary p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.benefits-summary p:last-child {
    margin-bottom: 0;
    font-size: var(--font-size-xl);
}

.benefits-summary strong {
    color: var(--secondary-color);
}

/* Fonctionnalités */
.features {
    background-color: var(--bg-secondary);
}

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

.features-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.feature-item {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.feature-module {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.feature-module:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--secondary-color);
}

.module-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.module-icon {
    font-size: var(--font-size-3xl);
    background: linear-gradient(135deg, var(--secondary-color), #E55A2B);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-medium);
}

.feature-module h3 {
    color: var(--primary-color);
    margin: 0;
    font-size: var(--font-size-xl);
}

.feature-module p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.feature-icon {
    font-size: var(--font-size-2xl);
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

/* Exemple visuel */
.visual-example {
    background-color: var(--bg-primary);
}

.example-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.demo-screen {
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-heavy);
    overflow: hidden;
}

.demo-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.demo-tabs {
    display: flex;
    gap: var(--spacing-md);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: white;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

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

.demo-body {
    padding: var(--spacing-xl);
}

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

.material-sheet {
    width: 100%;
    height: 200px;
    background-color: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    position: relative;
    display: flex;
    flex-wrap: wrap;
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
}

.piece {
    border-radius: var(--radius-sm);
    position: relative;
}

.piece-1 {
    width: 45%;
    height: 40%;
    background-color: var(--secondary-color);
    opacity: 0.8;
}

.piece-2 {
    width: 30%;
    height: 35%;
    background-color: var(--accent-color);
    opacity: 0.8;
}

.piece-3 {
    width: 40%;
    height: 25%;
    background-color: #10B981;
    opacity: 0.8;
}

.piece-4 {
    width: 25%;
    height: 30%;
    background-color: #8B5CF6;
    opacity: 0.8;
}

.optimization-stats {
    display: flex;
    justify-content: space-around;
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.stat {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.stat-value {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-color);
}

.example-text ul {
    list-style: none;
    padding: 0;
}

.example-text li {
    padding: var(--spacing-sm) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

.example-text li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* Témoignages */
.testimonials {
    background-color: var(--bg-secondary);
}

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

.testimonial-placeholder {
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    text-align: center;
}

.testimonial-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

/* CTA & Inscription */
.cta-signup {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
}

.signup-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-signup h2 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.cta-signup p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

.signup-form {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background-color: white;
    transition: box-shadow var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
}

.signup-benefits {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.signup-benefit {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
}

.benefit-check {
    color: var(--secondary-color);
    font-weight: bold;
}

/* À propos */
.about {
    background-color: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.founder-info {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    margin-top: var(--spacing-xl);
}

.founder-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.founder-info p {
    margin-bottom: var(--spacing-md);
}

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

.contact-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-link:hover {
    text-decoration: underline;
}

.company-logo {
    text-align: center;
    background-color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
}

.logo-placeholder {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.logo-tagline {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

.footer-brand h3 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-column h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

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

.footer-column li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: white;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.social-link:hover {
    background-color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-heavy);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-lg);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-close:hover {
    color: var(--text-primary);
}

.demo-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.demo-form input:not([type="checkbox"]):not([type="radio"]),
.demo-form textarea,
.demo-form select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    background-color: white;
}

.demo-form textarea {
    min-height: 100px;
    resize: vertical;
}

.demo-form select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: calc(var(--spacing-md) + 18px);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    background-size: 14px 14px;
}

.demo-form input:not([type="checkbox"]):not([type="radio"]):focus,
.demo-form textarea:focus,
.demo-form select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.demo-form .field-title {
    margin: 0 0 8px 0;
    font-weight: 600;
    color: var(--text-primary);
}

.demo-form .checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    line-height: 1.3;
    color: var(--text-primary);
}

.demo-form .checkbox-row input[type="checkbox"] {
    width: auto;
    margin-top: 3px;
    flex: 0 0 auto;
    accent-color: var(--secondary-color);
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content,
    .section-grid,
    .example-content,
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-heavy);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: 999;
    }
    
    .nav-menu.mobile-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .benefits-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .signup-benefits {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .modal-content {
        margin: 10% auto;
        padding: var(--spacing-lg);
    }
}

/* Utilitaires */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

/* États de chargement */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.success {
    color: #10B981;
}

.error {
    color: #EF4444;
}

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

/* Styles pour les vraies captures d'écran */
.real-screenshot {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-heavy);
    overflow: hidden;
    padding: var(--spacing-sm);
}

.screenshot-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-normal);
}

.screenshot-img:hover {
    transform: scale(1.02);
}

/* Galerie de captures d'écran */
.screenshots-gallery {
    background-color: var(--bg-primary);
    padding: var(--spacing-3xl) 0;
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.gallery-item {
    position: relative;
    background-color: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.gallery-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    object-position: top;
    transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    color: white;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.gallery-overlay p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    margin: 0;
    line-height: 1.4;
}

/* Responsive pour la galerie */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .gallery-img {
        height: 200px;
    }
    
    .gallery-overlay {
        position: static;
        transform: none;
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        padding: var(--spacing-lg);
    }
    
    .real-screenshot {
        padding: var(--spacing-xs);
    }
}

/* Overlay pour la capture d'écran hero */
.real-screenshot {
    position: relative;
    cursor: pointer;
}

.screenshot-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
    border-radius: var(--radius-xl);
}

.real-screenshot:hover .screenshot-overlay {
    opacity: 1;
}

.zoom-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.screenshot-overlay p {
    color: white;
    font-size: var(--font-size-sm);
    text-align: center;
    margin: 0;
}

/* Carousel Modal */
.carousel-modal {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.carousel-close {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    font-size: var(--font-size-3xl);
    color: white;
    cursor: pointer;
    z-index: 3001;
    transition: color var(--transition-fast);
}

.carousel-close:hover {
    color: var(--secondary-color);
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    font-size: var(--font-size-3xl);
    padding: var(--spacing-lg);
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-normal);
    z-index: 3001;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-nav:hover {
    background: var(--secondary-color);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: var(--spacing-xl);
}

.carousel-next {
    right: var(--spacing-xl);
}

.carousel-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90%;
    max-height: 80%;
}

.carousel-image-container {
    position: relative;
    max-width: 100%;
    max-height: 70vh;
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.carousel-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-heavy);
    display: block;
    transition: transform 0.5s ease-in-out, opacity 0.5s ease-in-out;
}

/* Animation de balayage pour le carousel */
.carousel-slide-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.6s ease-in-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

.carousel-slide.next {
    transform: translateX(100%);
}

.carousel-slide .carousel-image {
    max-width: 100%;
    max-height: 70vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-heavy);
    display: block;
    position: relative;
}

/* Assurer que les images du carousel s'affichent correctement */
.carousel-image-container .carousel-image {
    max-width: 100%;
    max-height: 70vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-heavy);
    display: block;
}

.carousel-slide .carousel-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Animation d'entrée depuis la droite */
@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Animation de sortie vers la gauche */
@keyframes slideOutToLeft {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(-100%);
        opacity: 0;
    }
}

.carousel-slide.entering {
    animation: slideInFromRight 0.6s ease-in-out forwards;
}

.carousel-slide.exiting {
    animation: slideOutToLeft 0.6s ease-in-out forwards;
}

/* Nouveau carrousel simple */
.carousel-image-container {
    position: relative;
    max-width: 100%;
    max-height: 70vh;
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.carousel-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-heavy);
    display: block;
}

.carousel-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.carousel-overlay h3 {
    color: white;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.carousel-overlay p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    margin: 0;
    line-height: 1.4;
}

.carousel-play-pause-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid white;
    color: white;
    font-size: var(--font-size-2xl);
    padding: var(--spacing-lg);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-heavy);
    opacity: 0;
    z-index: 10;
}

.carousel-image-container:hover .carousel-play-pause-btn {
    opacity: 1;
}

.carousel-play-pause-btn:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translate(-50%, -50%) scale(1.1);
}

.carousel-play-pause-btn:active {
    transform: translate(-50%, -50%) scale(0.95);
}

/* Toujours visible sur mobile */
@media (max-width: 768px) {
    .carousel-play-pause-btn {
        opacity: 1;
        width: 60px;
        height: 60px;
        font-size: var(--font-size-xl);
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .carousel-play-pause-btn {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm);
    }
}

.carousel-info {
    text-align: center;
    color: white;
    max-width: 600px;
}

.carousel-info h3 {
    color: white;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.carousel-info p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

.carousel-counter {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: white;
}

/* Overlay pour le bouton Play/Pause au centre de l'image */
.carousel-play-pause-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: all;
    z-index: 10;
}

/* Afficher le bouton au survol sur desktop */
.carousel-image-container:hover .carousel-play-pause-overlay {
    opacity: 0.9;
}

/* Toujours visible sur mobile */
@media (max-width: 768px) {
    .carousel-play-pause-overlay {
        opacity: 0.9;
    }
}

.carousel-image-container:hover .carousel-play-pause-overlay {
    opacity: 1;
}

.carousel-play-pause {
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid white;
    color: white;
    font-size: var(--font-size-2xl);
    padding: var(--spacing-lg);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-heavy);
}

.carousel-play-pause:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: scale(1.1);
}

.carousel-play-pause:active {
    transform: scale(0.95);
}

/* Responsive pour mobile */
@media (max-width: 768px) {
    .carousel-play-pause {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-xl);
        padding: var(--spacing-md);
    }
}

/* Très petits écrans */
@media (max-width: 480px) {
    .carousel-play-pause {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm);
    }
}

.carousel-thumbnails {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    max-width: 90%;
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    overflow-x: auto;
    padding: var(--spacing-sm);
}

.carousel-thumbnail {
    width: 60px;
    height: 40px;
    cursor: pointer;
    opacity: 0.6;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.carousel-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.carousel-thumbnail:hover {
    opacity: 0.8;
    transform: scale(1.1);
}

.carousel-thumbnail.active {
    opacity: 1;
    border-color: var(--secondary-color);
    transform: scale(1.1);
}

/* Styles de compatibilité pour les anciennes classes */
.thumbnail {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    opacity: 0.6;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.thumbnail:hover {
    opacity: 0.8;
    transform: scale(1.1);
}

.thumbnail.active {
    opacity: 1;
    border-color: var(--secondary-color);
    transform: scale(1.1);
}

/* Responsive pour le carousel */
@media (max-width: 768px) {
    .carousel-container {
        padding: var(--spacing-md);
    }
    
    .carousel-close {
        top: var(--spacing-md);
        right: var(--spacing-md);
        font-size: var(--font-size-2xl);
    }
    
    .carousel-nav {
        font-size: var(--font-size-xl);
        padding: var(--spacing-md);
        width: 50px;
        height: 50px;
    }
    
    .carousel-prev {
        left: var(--spacing-md);
    }
    
    .carousel-next {
        right: var(--spacing-md);
    }
    
    .carousel-image {
        max-height: 60vh;
    }
    
    .carousel-info h3 {
        font-size: var(--font-size-xl);
    }
    
    .carousel-info p {
        font-size: var(--font-size-base);
    }
    
    .carousel-thumbnails {
        bottom: var(--spacing-md);
    }
    
    .thumbnail {
        width: 50px;
        height: 35px;
    }
}

/* Messages de statut sous les formulaires */
.status-message {
    color: #fff !important;
    font-weight: 600;
    font-size: 16px;
    line-height: 1.4;
    display: block;
}

/* Focus visible pour l'accessibilité */
.btn:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}