/*! Seya Group - Modern Corporate Website | 2025 */

/* ==========================================================================
   Base styles and CSS Reset
   ========================================================================== */

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background-color: #ffffff;
  overflow-x: hidden;
  cursor: none;
}

/* Preloader */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  transition: opacity 0.5s ease;
}

.loader {
  text-align: center;
}

.loader-circle {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(37, 99, 235, 0.1);
  border-left: 4px solid #2563eb;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loader-text {
  font-size: 1.5rem;
  font-weight: 600;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: pulse 2s ease-in-out infinite;
}

/* Curseur personnalisé */
.custom-cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transition: all 0.1s ease;
  transform: translate(-50%, -50%);
}

.custom-cursor.hover {
  width: 40px;
  height: 40px;
  background: rgba(37, 99, 235, 0.2);
  border: 2px solid #2563eb;
}

.cursor-trail {
  position: fixed;
  width: 6px;
  height: 6px;
  background: rgba(37, 99, 235, 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transition: all 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Effet de révélation du texte */
.reveal-text {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-text.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Animation de chargement des éléments */
.fade-in-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: #6b7280;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transition: all 0.5s ease;
  transform: translate(-50%, -50%);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: white;
  box-shadow: 
    0 4px 15px rgba(37, 99, 235, 0.3),
    0 2px 8px rgba(37, 99, 235, 0.2);
  position: relative;
  z-index: 1;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 
    0 12px 30px rgba(37, 99, 235, 0.4),
    0 6px 20px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background: transparent;
  color: #2563eb;
  border: 2px solid #2563eb;
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: #2563eb;
  color: white;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.btn-full {
  width: 100%;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(229, 231, 235, 0.3);
}

.navbar {
  padding: 1rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 40px;
  height: 40px;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: #4b5563;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #2563eb;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 50%;
  background: #2563eb;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

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

.bar {
  width: 25px;
  height: 3px;
  background: #1f2937;
  margin: 3px 0;
  transition: 0.3s;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

/* Particules animées en arrière-plan */
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
  animation: particlesFloat 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes particlesFloat {
  0%, 100% { 
    transform: translateY(0px) rotate(0deg); 
    opacity: 1;
  }
  50% { 
    transform: translateY(-20px) rotate(180deg); 
    opacity: 0.8;
  }
}

.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"><polygon fill="%23f1f5f9" points="0,1000 1000,0 1000,1000"/></svg>');
  opacity: 0.1;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #1f2937;
  position: relative;
}

/* Effet de typing pour le titre */
.typing-effect {
  overflow: hidden;
  border-right: 3px solid #2563eb;
  white-space: nowrap;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0 }
  to { width: 100% }
}

@keyframes blink-caret {
  from, to { border-color: transparent }
  50% { border-color: #2563eb }
}

.highlight {
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.highlight::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  border-radius: 2px;
  animation: underlineGrow 2s ease-out 1s both;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: #6b7280;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

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

.hero-graphic {
  position: relative;
  width: 400px;
  height: 400px;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.1),
    0 4px 16px rgba(0, 0, 0, 0.05);
  animation: float 6s ease-in-out infinite;
  transition: all 0.3s ease;
  cursor: pointer;
}

.floating-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.15),
    0 8px 32px rgba(37, 99, 235, 0.1);
}

.floating-card i {
  font-size: 2rem;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.floating-card span {
  font-weight: 600;
  color: #1f2937;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.card-1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 50%;
  right: 10%;
  animation-delay: 2s;
}

.card-3 {
  bottom: 20%;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 4s;
}

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

/* ==========================================================================
   Section Styles
   ========================================================================== */

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  margin-bottom: 1rem;
  color: #1f2937;
}

.section-subtitle {
  font-size: 1.25rem;
  color: #6b7280;
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about {
  padding: 6rem 0;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h3 {
  color: #2563eb;
  margin-bottom: 1rem;
  margin-top: 2rem;
}

.about-text h3:first-child {
  margin-top: 0;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 2rem 1.5rem;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
  transition: left 0.5s ease;
}

.stat-item:hover::before {
  left: 100%;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(37, 99, 235, 0.2);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.stat-label {
  color: #6b7280;
  font-weight: 500;
  position: relative;
  z-index: 1;
}

.about-image {
  display: flex;
  justify-content: center;
}

.image-placeholder {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  font-weight: 600;
}

.image-placeholder i {
  font-size: 4rem;
  margin-bottom: 1rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
  padding: 6rem 0;
  background: #f8fafc;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.service-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(15px);
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.1),
    0 4px 16px rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(124, 58, 237, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card:hover {
  transform: translateY(-12px) rotate(1deg);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.15),
    0 12px 40px rgba(37, 99, 235, 0.1);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  position: relative;
  z-index: 1;
  transition: all 0.3s ease;
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(360deg);
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.4);
}

.service-icon i {
  font-size: 2rem;
  color: white;
  transition: all 0.3s ease;
}

.service-card h3 {
  margin-bottom: 1rem;
  color: #1f2937;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
}

.service-card:hover h3 {
  color: #2563eb;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */

.projects {
  padding: 6rem 0;
  position: relative;
}

.projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 70% 20%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 30% 80%, rgba(124, 58, 237, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.projects-grid {
  display: grid;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.project-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.1),
    0 8px 32px rgba(0, 0, 0, 0.05);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(37, 99, 235, 0.1) 0%, 
    rgba(124, 58, 237, 0.05) 50%, 
    rgba(16, 185, 129, 0.1) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 
    0 30px 80px rgba(0, 0, 0, 0.15),
    0 15px 50px rgba(37, 99, 235, 0.1);
}

.project-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 2fr;
  min-height: 500px;
}

.project-image {
  height: 250px;
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.featured .project-image {
  height: auto;
  min-height: 500px;
}

.project-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, 
    rgba(37, 99, 235, 0.1), 
    rgba(124, 58, 237, 0.1), 
    rgba(16, 185, 129, 0.1));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-image::before {
  opacity: 1;
}

.project-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: #6b7280;
  position: relative;
  z-index: 1;
}

.project-placeholder i {
  font-size: 4rem;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: all 0.3s ease;
}

.project-card:hover .project-placeholder i {
  transform: scale(1.1) rotate(5deg);
}

.project-content {
  padding: 2rem;
}

.project-tag {
  background: #dbeafe;
  color: #2563eb;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  display: inline-block;
  margin-bottom: 1rem;
}

.project-features {
  list-style: none;
  margin: 1.5rem 0;
}

.project-features li {
  padding: 0.5rem 0;
  color: #4b5563;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-features i {
  color: #10b981;
}

.project-status {
  margin-top: 1.5rem;
}

.status-badge {
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
}

.status-badge.in-development {
  background: #fef3c7;
  color: #d97706;
}

.status-badge.planning {
  background: #e0e7ff;
  color: #5b21b6;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
  padding: 6rem 0;
  background: #f8fafc;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  margin-bottom: 2rem;
  color: #1f2937;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-item i {
  color: #2563eb;
  font-size: 1.25rem;
  margin-top: 0.25rem;
}

.contact-item strong {
  display: block;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.social-links {
  margin-top: 3rem;
}

.social-links h4 {
  margin-bottom: 1rem;
  color: #1f2937;
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 45px;
  height: 45px;
  background: #2563eb;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.contact-form {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  background: #f9fafb;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #2563eb;
  background: white;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: #1f2937;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1rem;
}

.footer-logo {
  width: 30px;
  height: 30px;
  filter: brightness(0) invert(1);
}

.footer-brand-name {
  font-size: 1.25rem;
  font-weight: 600;
}

.footer-section h4 {
  margin-bottom: 1rem;
  color: white;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #9ca3af;
}

.footer-legal {
  display: flex;
  gap: 2rem;
}

.footer-legal a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Large Desktop */
@media (min-width: 1200px) {
  .hero-title {
    font-size: 4.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.3rem;
  }
  
  .hero-graphic {
    width: 450px;
    height: 450px;
  }
}

/* Tablette et plus petit */
@media (max-width: 1024px) {
  .hero .container {
    gap: 2rem;
  }
  
  .hero-title {
    font-size: 3.5rem;
  }
  
  .hero-graphic {
    width: 350px;
    height: 350px;
  }
  
  .floating-card {
    padding: 15px;
  }
  
  .floating-card i {
    font-size: 1.5rem;
  }
}

/* Tablette */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
  }

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

  .nav-list {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

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

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Hero Section Responsive */
  .hero {
    min-height: 100vh;
    padding: 2rem 0;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .hero-content {
    order: 1;
  }

  .hero-visual {
    order: 2;
  }

  .hero-title {
    font-size: 2.8rem;
    line-height: 1.1;
    margin-bottom: 1rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
  }

  .btn {
    padding: 14px 28px;
    font-size: 1rem;
  }

  /* Hero Visual Responsive */
  .hero-graphic {
    width: 280px;
    height: 280px;
    margin: 0 auto;
  }

  .floating-card {
    padding: 12px;
    border-radius: 12px;
  }

  .floating-card i {
    font-size: 1.2rem;
  }

  .floating-card span {
    font-size: 0.875rem;
  }

  .card-1 {
    top: 15%;
    left: 5%;
  }

  .card-2 {
    top: 45%;
    right: 5%;
  }

  .card-3 {
    bottom: 15%;
    left: 50%;
  }

  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

  .project-card.featured {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  /* Hero Mobile */
  .hero {
    padding: 1rem 0;
    min-height: 90vh;
  }

  .hero .container {
    gap: 2rem;
  }

  .hero-title {
    font-size: 2.2rem;
    line-height: 1.1;
    margin-bottom: 1rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1rem;
    line-height: 1.5;
  }

  .hero-buttons {
    margin-top: 1rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  /* Hero Visual Mobile */
  .hero-graphic {
    width: 220px;
    height: 220px;
  }

  .floating-card {
    padding: 10px;
    border-radius: 10px;
  }

  .floating-card i {
    font-size: 1rem;
  }

  .floating-card span {
    font-size: 0.75rem;
    font-weight: 500;
  }

  .card-1 {
    top: 10%;
    left: 0%;
  }

  .card-2 {
    top: 40%;
    right: 0%;
  }

  .card-3 {
    bottom: 10%;
    left: 50%;
  }

  /* Typography Mobile */
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.4rem; }

  .section-title {
    font-size: 1.8rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  /* Services Mobile */
  .service-card {
    padding: 2rem 1.5rem;
  }

  .service-icon {
    width: 60px;
    height: 60px;
  }

  .service-icon i {
    font-size: 1.5rem;
  }

  /* Stats Mobile */
  .stat-item {
    padding: 1.5rem 1rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  /* Footer Mobile */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

/* Très petit mobile */
@media (max-width: 360px) {
  .hero-title {
    font-size: 1.9rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-graphic {
    width: 180px;
    height: 180px;
  }

  .floating-card {
    padding: 8px;
  }

  .floating-card i {
    font-size: 0.9rem;
  }

  .floating-card span {
    font-size: 0.7rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

/* Landscape mobile */
@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    min-height: 100vh;
    padding: 1rem 0;
  }

  .hero .container {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
  }

  .hero-content {
    order: 1;
    text-align: left;
  }

  .hero-visual {
    order: 2;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: row;
    gap: 1rem;
  }

  .hero-graphic {
    width: 250px;
    height: 250px;
  }
}

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

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

  .project-card.featured {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  /* Hero Mobile */
  .hero {
    padding: 1rem 0;
    min-height: 90vh;
  }

  .hero .container {
    gap: 2rem;
  }

  .hero-title {
    font-size: 2.2rem;
    line-height: 1.1;
    margin-bottom: 1rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1rem;
    line-height: 1.5;
  }

  .hero-buttons {
    margin-top: 1rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  /* Hero Visual Mobile */
  .hero-graphic {
    width: 220px;
    height: 220px;
  }

  .floating-card {
    padding: 10px;
    border-radius: 10px;
  }

  .floating-card i {
    font-size: 1rem;
  }

  .floating-card span {
    font-size: 0.75rem;
    font-weight: 500;
  }

  .card-1 {
    top: 10%;
    left: 0%;
  }

  .card-2 {
    top: 40%;
    right: 0%;
  }

  .card-3 {
    bottom: 10%;
    left: 50%;
  }

  /* Typography Mobile */
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.4rem; }

  .section-title {
    font-size: 1.8rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  /* Services Mobile */
  .service-card {
    padding: 2rem 1.5rem;
  }

  .service-icon {
    width: 60px;
    height: 60px;
  }

  .service-icon i {
    font-size: 1.5rem;
  }

  /* Stats Mobile */
  .stat-item {
    padding: 1.5rem 1rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  /* Footer Mobile */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

/* Très petit mobile */
@media (max-width: 360px) {
  .hero-title {
    font-size: 1.9rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-graphic {
    width: 180px;
    height: 180px;
  }

  .floating-card {
    padding: 8px;
  }

  .floating-card i {
    font-size: 0.9rem;
  }

  .floating-card span {
    font-size: 0.7rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

/* Landscape mobile */
@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    min-height: 100vh;
    padding: 1rem 0;
  }

  .hero .container {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
  }

  .hero-content {
    order: 1;
    text-align: left;
  }

  .hero-visual {
    order: 2;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: row;
    gap: 1rem;
  }

  .hero-graphic {
    width: 250px;
    height: 250px;
  }
}

/* ==========================================================================
   Animations et Effets Avancés
   ========================================================================== */

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

@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 rotateIn {
  from {
    opacity: 0;
    transform: rotate(-180deg) scale(0.5);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3) translateY(-100px);
  }
  50% {
    opacity: 1;
    transform: scale(1.05) translateY(0);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
  }
  70% {
    box-shadow: 0 0 0 20px rgba(37, 99, 235, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

.rotate-in {
  animation: rotateIn 0.8s ease-out;
}

.bounce-in {
  animation: bounceIn 1s ease-out;
}

/* Effet parallax */
.parallax-element {
  transform: translateZ(0);
  will-change: transform;
}

/* Effet de brillance sur hover */
.shine-effect {
  position: relative;
  overflow: hidden;
}

.shine-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transition: left 0.5s ease;
}

.shine-effect:hover::after {
  left: 100%;
}

/* Effet de bordure animée */
.animated-border {
  position: relative;
}

.animated-border::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(45deg, #2563eb, #7c3aed, #10b981, #f59e0b);
  background-size: 400% 400%;
  animation: gradientShift 3s ease infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Effet de glassmorphism */
.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Animation de typewriter */
@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

/* Effet de morphing */
.morph-shape {
  animation: morphing 8s ease-in-out infinite;
}

@keyframes morphing {
  0%, 100% {
    border-radius: 40% 60% 70% 30% / 40% 40% 60% 50%;
  }
  34% {
    border-radius: 70% 30% 50% 50% / 30% 30% 70% 70%;
  }
  67% {
    border-radius: 100% 60% 60% 100% / 100% 100% 60% 60%;
  }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

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

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }