/* ==========================================================================
   Variables et reset CSS
   ========================================================================== */
:root {
  /* Couleurs */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #64748b;
  --color-accent: #f59e0b;
  --color-background: #ffffff;
  --color-background-alt: #f8fafc;
  --color-background-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-inverse: #ffffff;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-error: #ef4444;
  
  /* Typographie */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* 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;
  
  /* Bordures */
  --border-radius: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  
  /* Ombres */
  --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);
  
  /* Transitions */
  --transition-base: all 0.2s ease-in-out;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* Reset CSS */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--color-primary-dark);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Classes utilitaires */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-padding {
  padding: var(--spacing-3xl) 0;
}

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

/* ==========================================================================
   Layout principal
   ========================================================================== */
/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-fixed);
  transition: var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

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

.logo img {
  height: 32px;
  width: auto;
}

/* Navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text);
  margin: 2px 0;
  transition: var(--transition-base);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

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

.nav-menu a {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

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

.nav-cta {
  margin-left: var(--spacing-md);
}

/* Language Switcher */
.language-switcher {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-left: var(--spacing-lg);
}

.language-switcher a,
.language-switcher span {
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
}

.language-switcher span[aria-current="true"] {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

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

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.footer-nav h3 {
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-md);
}

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

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

.footer-nav a {
  color: var(--color-text-light);
}

.footer-nav a:hover {
  color: var(--color-text-inverse);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-xl);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.affiliation-badge {
  margin-top: var(--spacing-md);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  display: inline-block;
}

/* ==========================================================================
   Composants
   ========================================================================== */
/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  text-align: center;
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
  line-height: 1.5;
}

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

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

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

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

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

/* Cartes */
.feature-card {
  background-color: var(--color-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  margin-bottom: var(--spacing-md);
  background-color: var(--color-background-alt);
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon img {
  width: 48px;
  height: 48px;
}

.pricing-card {
  background-color: var(--color-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  position: relative;
  height: 100%;
}

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

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: var(--font-weight-bold);
}

.price {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin: var(--spacing-md) 0;
}

.price span {
  font-size: 1rem;
  color: var(--color-text-light);
}

.features-list {
  list-style: none;
  margin: var(--spacing-lg) 0;
}

.features-list li {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
  position: relative;
}

.features-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
}

.use-case {
  background-color: var(--color-background);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

.use-case:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.use-case-image {
  overflow: hidden;
}

.use-case-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.use-case:hover .use-case-image img {
  transform: scale(1.05);
}

.use-case h3 {
  padding: 0 var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.use-case p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
  background: none;
  border: none;
  text-align: left;
  font-weight: var(--font-weight-semibold);
  font-size: 1.125rem;
  cursor: pointer;
  transition: var(--transition-base);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-left: var(--spacing-md);
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background-color: currentColor;
  transition: var(--transition-base);
}

.faq-icon::before {
  width: 100%;
  height: 2px;
  top: 9px;
  left: 0;
}

.faq-icon::after {
  width: 2px;
  height: 100%;
  top: 0;
  left: 9px;
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-answer {
  padding-bottom: var(--spacing-lg);
  display: none;
}

.faq-question[aria-expanded="true"] + .faaq-answer {
  display: block;
}

/* Formulaires */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: inherit;
  transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.honeypot {
  position: absolute;
  left: -9999px;
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-md);
  max-width: 500px;
  margin: var(--spacing-lg) auto;
}

.newsletter-form input {
  flex: 1;
}

/* Bannières */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-background-dark);
  color: var(--color-text-inverse);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-modal);
}

.cookie-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.cookie-buttons {
  display: flex;
  gap: var(--spacing-md);
}

.cookie-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  border: 1px solid var(--color-text-inverse);
  border-radius: var(--border-radius);
  background: none;
  color: var(--color-text-inverse);
  cursor: pointer;
  transition: var(--transition-base);
}

.cookie-btn.accept {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.cookie-btn.accept:hover {
  background-color: var(--color-primary-dark);
}

.language-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--color-accent);
  color: var(--color-text);
  padding: var(--spacing-sm);
  text-align: center;
  z-index: var(--z-tooltip);
}

.language-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
}

.dismiss-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 var(--spacing-xs);
}

/* YouTube Lite */
.youtube-lite {
  position: relative;
  display: block;
  cursor: pointer;
  background-color: #000;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
}

.youtube-thumbnail {
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.85;
  transition: var(--transition-base);
}

.youtube-lite:hover .youtube-thumbnail {
  opacity: 1;
}

.youtube-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 48px;
  background-color: #212121;
  background-color: rgba(33, 33, 33, 0.8);
  border-radius: 16px;
  transition: var(--transition-base);
}

.youtube-play-button::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-40%, -50%);
  border-style: solid;
  border-width: 10px 0 10px 20px;
  border-color: transparent transparent transparent #fff;
}

.youtube-lite:hover .youtube-play-button {
  background-color: #f00;
  background-color: rgba(255, 0, 0, 0.8);
}

/* ==========================================================================
   Sections spécifiques
   ========================================================================== */
/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.7));
}

.hero-content {
  color: var(--color-text-inverse);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-2xl);
  opacity: 0.9;
}

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

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
}

.scroll-indicator span {
  display: block;
  width: 2px;
  height: 30px;
  background-color: var(--color-text-inverse);
  position: relative;
  animation: scrollIndicator 2s infinite;
}

@keyframes scrollIndicator {
  0% {
    height: 0;
    opacity: 0;
  }
  50% {
    height: 30px;
    opacity: 1;
  }
  100% {
    height: 0;
    opacity: 0;
    transform: translateY(20px);
  }
}

/* Intro */
.intro-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.features-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* Demo */
.demo-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  margin-top: var(--spacing-2xl);
}

.demo-features {
  list-style: none;
  margin: var(--spacing-lg) 0;
}

.demo-features li {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-lg);
  position: relative;
}

.demo-features li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* Use Cases */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin: var(--spacing-2xl) 0;
}

.pricing-note {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

/* FAQ */
.faq-cta {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* CTA */
.cta {
  background-color: var(--color-background-alt);
  text-align: center;
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

/* Newsletter */
.newsletter {
  background-color: var(--color-background-alt);
  text-align: center;
}

.newsletter-content {
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-note {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-md);
}

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

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* ==========================================================================
   Accessibilité
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Focus styles */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: var(--z-popover);
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .demo-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .demo-content {
    order: 2;
  }
  
  .demo-video {
    order: 1;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-3xl: 3rem;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--color-background);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-2xl);
    transform: translateX(-100%);
    transition: var(--transition-smooth);
    z-index: var(--z-fixed);
    overflow-y: auto;
  }
  
  .nav-menu[aria-expanded="true"] {
    transform: translateX(0);
  }
  
  .nav-cta {
    margin-left: 0;
    margin-top: var(--spacing-md);
  }
  
  .language-switcher {
    margin-left: 0;
  }
  
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
  
  .cookie-buttons {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;
  }
  
  .hero {
    min-height: 80vh;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid,
  .use-cases-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .language-content {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

/* ==========================================================================
   Variables et reset CSS
   ========================================================================== */
:root {
  /* Couleurs */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #64748b;
  --color-accent: #f59e0b;
  --color-background: #ffffff;
  --color-background-alt: #f8fafc;
  --color-background-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-inverse: #ffffff;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-error: #ef4444;
  
  /* Typographie */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* 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;
  
  /* Bordures */
  --border-radius: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  
  /* Ombres */
  --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);
  
  /* Transitions */
  --transition-base: all 0.2s ease-in-out;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset CSS */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition-base);
}

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

/* Navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text);
  margin: 2px 0;
  transition: var(--transition-base);
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: var(--spacing-xl);
  margin: 0;
  padding: 0;
}

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

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

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--color-background);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-2xl);
    transform: translateX(-100%);
    transition: var(--transition-smooth);
    z-index: 1000;
  }

  .nav-menu[aria-expanded="true"] {
    transform: translateX(0);
  }
}

/* ==========================================================================
   Corrections spécifiques pour Netlify
   ========================================================================== */

/* Assurer que les images sont toujours affichées */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Empêcher le overflow horizontal */
body {
  overflow-x: hidden;
}

/* Styles de base pour tous les éléments */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--color-primary-dark);
}

/* Correction pour les sections */
section {
  padding: var(--spacing-3xl) 0;
}

/* Styles pour le hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  text-align: center;
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
}

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

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

/* Ajouter ces styles manquants */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section-padding {
  padding: var(--spacing-3xl) 0;
}

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

/* Correction pour les vidéos */
video {
  width: 100%;
  height: auto;
}

/* Assurer la compatibilité mobile */
@media (max-width: 480px) {
  :root {
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;
  }
  
  .hero {
    min-height: 80vh;
  }
}