/* Variables globales */
:root {
  /* Couleurs de base */
  --primary: #00bcd4;
  --primary-dark: #0097a7;
  --primary-light: #b2ebf2;
  --secondary: #3f51b5;
  --secondary-dark: #303f9f;
  --secondary-light: #c5cae9;
  --accent: #ff4081;
  --accent-dark: #c60055;
  --red: #f44336;
  --purple: #9c27b0;
  --blue: #2196f3;
  --green: #4caf50;
  
  /* Thème clair */
  --text-dark-light: #333;
  --text-light-light: #666;
  --text-lighter-light: #999;
  --background-light: #fff;
  --background-alt-light: #f8f9fa;
  --border-light: #e0e0e0;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-strong-light: rgba(0, 0, 0, 0.15);
  
  /* Thème sombre */
  --text-dark-dark: #e0e0e0;
  --text-light-dark: #b0b0b0;
  --text-lighter-dark: #808080;
  --background-dark: #121212;
  --background-alt-dark: #1e1e1e;
  --border-dark: #2a2a2a;
  --shadow-dark: rgba(0, 0, 0, 0.25);
  --shadow-strong-dark: rgba(0, 0, 0, 0.35);
  
  /* Variables dynamiques initialisées avec thème clair par défaut */
  --text-dark: var(--text-dark-light);
  --text-light: var(--text-light-light);
  --text-lighter: var(--text-lighter-light);
  --background: var(--background-light);
  --background-alt: var(--background-alt-light);
  --border: var(--border-light);
  --shadow: var(--shadow-light);
  --shadow-strong: var(--shadow-strong-light);
  
  /* Couleurs spécifiques pour la section hero */
  --hero-background: #121212;
  --hero-text: #e0e0e0;
  --hero-light: #b0b0b0;
  
  /* Autres variables */
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background-color: var(--background);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark-theme {
  --text-dark: var(--text-dark-dark);
  --text-light: var(--text-light-dark);
  --text-lighter: var(--text-lighter-dark);
  --background: var(--background-dark);
  --background-alt: var(--background-alt-dark);
  --border: var(--border-dark);
  --shadow: var(--shadow-dark);
  --shadow-strong: var(--shadow-strong-dark);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

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

/* Utilitaires */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 992px) {
  .section-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.section-hidden {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.gradient-text {
  position: relative;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
  animation: text-shimmer 6s infinite linear;
  background-size: 200% 100%;
}

.gradient-text::after {
  content: 'IHM Explorer';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, transparent 40%, rgba(255, 255, 255, 0.6) 50%, transparent 60%, transparent 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: text-shine 5s infinite;
  background-size: 200% 100%;
  pointer-events: none;
  z-index: 2;
}

@keyframes text-shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@keyframes text-shine {
  0% { background-position: -100% 50%; }
  100% { background-position: 200% 50%; }
}

/* Header et Navigation */
.header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  padding: 1rem 1.5rem;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  box-shadow: 0 2px 10px var(--shadow);
  transition: all var(--transition);
  color: var(--text-dark-light);
}

.header.scrolled {
  padding: 0.75rem 2rem;
  box-shadow: 0 5px 20px var(--shadow-strong);
  background-color: rgba(255, 255, 255, 0.98);
}

/* En mode sombre */
body.dark-theme .header {
  background-color: rgba(18, 18, 18, 0.95);
  color: var(--text-dark-dark);
}

body.dark-theme .header.scrolled {
  background-color: rgba(18, 18, 18, 0.98);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
}

.logo-circle {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  box-shadow: 0 4px 10px rgba(0, 188, 212, 0.3);
  position: relative;
  overflow: hidden;
}

.logo-circle::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 70%);
  opacity: 0;
  animation: logo-shine 3s ease-in-out infinite;
}

@keyframes logo-shine {
  0%, 100% { opacity: 0; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1); }
}

.logo span {
  white-space: nowrap;
}

.nav {
  display: none;
}

@media (min-width: 992px) {
  .nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
  }
}

.nav a {
  color: var(--text-light);
  text-decoration: none;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  font-weight: 500;
  position: relative;
  white-space: nowrap;
  font-size: 1rem;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  transition: width var(--transition);
  border-radius: 2px;
}

.nav a:hover::after, .nav a.active::after {
  width: 70%;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
}

.theme-toggle, .menu-toggle {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--background-alt);
  color: var(--text-light);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover, .menu-toggle:hover {
  background-color: rgba(0, 188, 212, 0.1);
  color: var(--primary);
  transform: rotate(15deg);
}

.login-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  border-radius: var(--radius);
  transition: all var(--transition);
  font-weight: 500;
  white-space: nowrap;
}

.login-btn:hover, .login-btn.active {
  background-color: rgba(0, 188, 212, 0.1);
  color: var(--primary);
}

.menu-toggle {
  display: flex;
}

@media (min-width: 992px) {
  .menu-toggle {
    display: none;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 400px;
  height: 100%;
  background-color: var(--background-alt);
  z-index: 110;
  padding: 1.5rem;
  box-shadow: -5px 0 25px var(--shadow-strong);
  transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
  display: flex;
  flex-direction: column;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.close-menu {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.close-menu:hover {
  background-color: rgba(0, 188, 212, 0.1);
  color: var(--primary);
  transform: rotate(90deg);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav a {
  padding: 1rem;
  border-radius: var(--radius);
  color: var(--text-light);
  font-weight: 500;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.mobile-nav a::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  transition: height 0.3s ease;
  transform: translateY(-50%);
}

.mobile-nav a:hover::before, .mobile-nav a.active::before {
  height: 70%;
}

.mobile-nav a:hover, .mobile-nav a.active {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--primary);
  padding-left: 1.5rem;
}

.mobile-actions {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.mobile-social {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.mobile-social a {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  transition: all var(--transition);
}

.mobile-social a:hover {
  background-color: rgba(0, 188, 212, 0.1);
  color: var(--primary);
  transform: translateY(-3px);
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 105;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-size: 1rem;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 10px 20px rgba(0, 188, 212, 0.3);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn.primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  opacity: 0;
  z-index: -1;
  transition: opacity 0.3s ease;
}

.btn.primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 15px 30px rgba(0, 188, 212, 0.4);
}

.btn.primary:hover::before {
  opacity: 1;
}

.btn.secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-dark);
  border: 1px solid rgba(0, 188, 212, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.btn.secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transition: left 0.7s ease;
}

.btn.secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 188, 212, 0.3);
}

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

.btn.outline-btn {
  background-color: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 0.7rem 1.5rem;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn.outline-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  opacity: 0.1;
  z-index: -1;
  transition: left 0.3s ease;
}

.btn.outline-btn:hover {
  color: white;
  border-color: var(--secondary);
}

.btn.outline-btn:hover::before {
  left: 0;
}

.btn.cta-btn {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: var(--radius);
  box-shadow: 0 15px 30px rgba(0, 188, 212, 0.4);
  position: relative;
  overflow: hidden;
  border: none;
}

.btn.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  opacity: 0;
  z-index: -1;
  transition: opacity 0.3s ease;
}

.btn.cta-btn:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 20px 40px rgba(0, 188, 212, 0.5);
}

.btn.cta-btn:hover::before {
  opacity: 1;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 6rem 0 3rem;
  background-color: var(--hero-background);
  color: var(--hero-text);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
  padding: 0 1.5rem;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  color: var(--hero-text);
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 3.5rem;
  }
}

.hero p {
  font-size: 1.2rem;
  color: var(--hero-light);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3rem;
  justify-content: center;
}

@media (min-width: 576px) {
  .buttons {
    flex-direction: row;
  }
}

/* Background animé */
.animated-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
}

.wave {
  position: absolute;
  width: 200%;
  height: 200%;
  border-radius: 43%;
  bottom: -80%;
  opacity: 0.2;
  pointer-events: none;
}

.wave1 {
  left: -50%;
  background: rgba(0, 188, 212, 0.2);
  animation: wave 25s linear infinite;
}

.wave2 {
  left: -60%;
  background: rgba(63, 81, 181, 0.2);
  animation: wave 30s linear infinite;
  animation-delay: -5s;
}

.wave3 {
  left: -45%;
  background: rgba(255, 64, 129, 0.15);
  animation: wave 28s linear infinite;
  animation-delay: -10s;
  opacity: 0.1;
}

.wave4 {
  left: -55%;
  background: rgba(255, 255, 255, 0.1);
  animation: wave 22s linear infinite;
  animation-delay: -15s;
  opacity: 0.05;
}

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

/* Petites boules animées */
.tiny-dots-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.tiny-dot {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--primary-light);
  opacity: 0.6;
  animation: float-dot 15s ease-in-out infinite;
}

.tiny-dot:nth-child(even) {
  background-color: var(--secondary-light);
}

.dot-blue-1 { top: 15%; left: 10%; animation-delay: 0s; }
.dot-blue-2 { top: 25%; left: 20%; animation-delay: 1s; }
.dot-blue-3 { top: 35%; left: 8%; animation-delay: 2s; }
.dot-blue-4 { top: 60%; left: 15%; animation-delay: 3s; }
.dot-blue-5 { top: 75%; left: 25%; animation-delay: 4s; }
.dot-blue-6 { top: 15%; left: 85%; animation-delay: 5s; }
.dot-blue-7 { top: 25%; left: 75%; animation-delay: 6s; }
.dot-blue-8 { top: 35%; left: 92%; animation-delay: 7s; }
.dot-blue-9 { top: 60%; left: 80%; animation-delay: 8s; }
.dot-blue-10 { top: 75%; left: 70%; animation-delay: 9s; }
.dot-blue-11 { top: 20%; left: 50%; animation-delay: 10s; }
.dot-blue-12 { top: 40%; left: 40%; animation-delay: 11s; }
.dot-blue-13 { top: 70%; left: 45%; animation-delay: 12s; }
.dot-blue-14 { top: 85%; left: 35%; animation-delay: 13s; }
.dot-blue-15 { top: 90%; left: 60%; animation-delay: 14s; }

@keyframes float-dot {
  0%, 100% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-15px) translateX(10px); }
  50% { transform: translateY(0) translateX(15px); }
  75% { transform: translateY(15px) translateX(5px); }
}

/* Décorations */
.hero-decoration {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

.circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  opacity: 0.1;
  filter: blur(30px);
}

.circle-1 {
  width: 350px;
  height: 350px;
  top: -100px;
  left: -150px;
  animation: pulse 8s infinite alternate;
}

.circle-2 {
  width: 250px;
  height: 250px;
  bottom: 100px;
  right: -70px;
  animation: pulse 6s infinite alternate;
  animation-delay: 1s;
}

.circle-3 {
  width: 200px;
  height: 200px;
  top: 30%;
  right: 20%;
  animation: pulse 7s infinite alternate;
  animation-delay: 2s;
  opacity: 0.08;
}

@keyframes pulse {
  0% { opacity: 0.05; transform: scale(1); }
  100% { opacity: 0.15; transform: scale(1.1); }
}

.dot {
  position: absolute;
  border-radius: 50%;
  background-color: var(--primary);
  opacity: 0.7;
}

.dot-1 {
  width: 6px;
  height: 6px;
  top: 25%;
  left: 10%;
  animation: float 8s infinite ease-in-out;
}

.dot-2 {
  width: 8px;
  height: 8px;
  top: 15%;
  right: 12%;
  animation: float 9s infinite ease-in-out;
  animation-delay: 1s;
  background-color: var(--secondary);
}

.dot-3 {
  width: 5px;
  height: 5px;
  bottom: 25%;
  left: 20%;
  animation: float 7s infinite ease-in-out;
  animation-delay: 2s;
}

.dot-4 {
  width: 7px;
  height: 7px;
  bottom: 15%;
  right: 15%;
  animation: float 10s infinite ease-in-out;
  animation-delay: 3s;
  background-color: var(--accent);
}

.dot-5 {
  width: 4px;
  height: 4px;
  top: 45%;
  right: 30%;
  animation: float 6s infinite ease-in-out;
  animation-delay: 4s;
  background-color: var(--secondary);
}

@keyframes float {
  0%, 100% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-15px) translateX(10px); }
  50% { transform: translateY(0) translateX(15px); }
  75% { transform: translateY(15px) translateX(5px); }
}

.floating-bubble {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2), transparent);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.1);
  animation: bubble-float 20s infinite ease-in-out;
}

.bubble-1 {
  width: 50px;
  height: 50px;
  top: 30%;
  left: 15%;
  animation-delay: 0s;
}

.bubble-2 {
  width: 30px;
  height: 30px;
  top: 25%;
  right: 25%;
  animation-delay: 3s;
}

.bubble-3 {
  width: 40px;
  height: 40px;
  bottom: 30%;
  left: 30%;
  animation-delay: 6s;
}

.bubble-4 {
  width: 25px;
  height: 25px;
  bottom: 25%;
  right: 15%;
  animation-delay: 9s;
}

.bubble-5 {
  width: 35px;
  height: 35px;
  top: 60%;
  left: 50%;
  animation-delay: 12s;
}

@keyframes bubble-float {
  0%, 100% { transform: translateY(0) translateX(0) scale(1); }
  25% { transform: translateY(-30px) translateX(20px) scale(1.1); }
  50% { transform: translateY(0) translateX(30px) scale(1); }
  75% { transform: translateY(30px) translateX(10px) scale(0.9); }
}

.light-shine {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: light-pulse 5s infinite alternate;
  opacity: 0.05;
  z-index: 2;
}

@keyframes light-pulse {
  0% { width: 0; height: 0; opacity: 0.05; }
  100% { width: 1500px; height: 1500px; opacity: 0.12; }
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 188, 212, 0.2);
  position: relative;
  overflow: hidden;
}

.badge-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  animation: shine 5s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  20%, 100% { left: 100%; }
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 576px) {
  .stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition);
  /* Toujours en mode sombre pour les statistiques */
  color: var(--hero-text);
}

.stat:hover {
  transform: translateY(-3px);
  background-color: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 188, 212, 0.2);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--hero-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* À propos section */
.about-section {
  padding: 3rem 0;
  position: relative;
  overflow: hidden;
  background-color: var(--background);
  color: var(--text-dark);
}

.about-section .section-container {
  display: flex;
  align-items: stretch;
}

.about-text {
  margin-bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: space-between;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  position: relative;
  color: var(--primary);
}

.title-decoration {
  width: 20px;
  height: 3px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  margin-right: 10px;
  border-radius: 2px;
}

.about-text p {
  margin-bottom: 0.75rem;
  color: var(--text-light);
  line-height: 1.5;
  font-size: 0.85rem;
}

.about-text h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

/* Domaines */
.domains-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.domain-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
}

.domain-item:hover {
  transform: translateY(-3px);
  background-color: rgba(0, 0, 0, 0.15);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.domain-icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.domain-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-dark);
}

/* Cards couleurs */
.domain-item[data-color="red"] .domain-icon {
  color: var(--red);
}
.domain-item[data-color="red"]:hover {
  border-color: var(--red);
}

.domain-item[data-color="purple"] .domain-icon {
  color: var(--purple);
}
.domain-item[data-color="purple"]:hover {
  border-color: var(--purple);
}

.domain-item[data-color="blue"] .domain-icon {
  color: var(--blue);
}
.domain-item[data-color="blue"]:hover {
  border-color: var(--blue);
}

.domain-item[data-color="green"] .domain-icon {
  color: var(--green);
}
.domain-item[data-color="green"]:hover {
  border-color: var(--green);
}

/* Média */
.about-media {
  position: relative;
}

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* Ratio 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  min-height: 340px;
  max-height: 100%;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: all var(--transition);
  box-shadow: 0 10px 30px rgba(0, 188, 212, 0.4);
}

.play-button i {
  color: white;
  font-size: 1.5rem;
  transform: translateX(2px);
}

.play-button:hover {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 15px 40px rgba(0, 188, 212, 0.5);
}

.media-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 2rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  color: white;
  z-index: 1;
}

.media-overlay h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.media-overlay p {
  font-size: 0.875rem;
  opacity: 0.8;
}

.decoration-square {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px dashed rgba(0, 188, 212, 0.3);
  z-index: 0;
  border-radius: 8px;
  opacity: 0.5;
}

.decoration-1 {
  top: -30px;
  right: -30px;
  transform: rotate(10deg);
}

.decoration-2 {
  bottom: -20px;
  left: -30px;
  transform: rotate(-5deg);
}

/* Témoignages section */
.testimonials-section {
  padding: 2.5rem 0;
  background-color: var(--background);
}

.section-header {
  text-align: center;
  margin-bottom: 1.25rem;
}

.title-underline {
  width: 40px;
  height: 3px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  margin: 0 auto;
  border-radius: 2px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: relative;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 188, 212, 0.2);
}

.quote-icon {
  font-size: 1.5rem;
  color: var(--primary);
  opacity: 0.3;
  margin-bottom: 0.5rem;
}

.testimonial-text {
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  color: var(--text-light);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--primary);
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
}

.author-info span {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* CTA Section */
.cta-section {
  padding: 3.5rem 0;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 188, 212, 0.1), rgba(63, 81, 181, 0.1));
}

.cta-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 10;
  padding: 0 1.5rem;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.cta-section p {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.cta-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(30px);
}

.cta-circle-1 {
  width: 400px;
  height: 400px;
  top: -200px;
  right: -100px;
  background: var(--primary);
  animation: cta-pulse 8s infinite alternate;
}

.cta-circle-2 {
  width: 300px;
  height: 300px;
  bottom: -150px;
  left: -100px;
  background: var(--secondary);
  animation: cta-pulse 6s infinite alternate;
  animation-delay: 1s;
}

.cta-circle-3 {
  width: 200px;
  height: 200px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent);
  animation: cta-pulse 7s infinite alternate;
  animation-delay: 2s;
  opacity: 0.08;
}

@keyframes cta-pulse {
  0% { opacity: 0.05; transform: scale(1); }
  100% { opacity: 0.15; transform: scale(1.2); }
}

.cta-particle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--primary);
  opacity: 0.7;
  animation: float 8s infinite ease-in-out;
}

.cta-particle-1 {
  top: 20%;
  left: 20%;
  animation-delay: 0s;
}

.cta-particle-2 {
  top: 30%;
  right: 25%;
  animation-delay: 2s;
  background-color: var(--secondary);
}

.cta-particle-3 {
  bottom: 25%;
  left: 30%;
  animation-delay: 4s;
  background-color: var(--accent);
}

.cta-particle-4 {
  bottom: 35%;
  right: 20%;
  animation-delay: 6s;
}

.cta-particle-5 {
  top: 60%;
  left: 40%;
  animation-delay: 8s;
  background-color: var(--secondary);
}

/* Footer */
.footer {
  background-color: var(--background-alt);
  padding: 4rem 0 2rem;
  color: var(--text-light);
  margin-top: 4rem;
  position: relative;
  overflow: hidden;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-about p {
  margin: 1rem 0;
  max-width: 300px;
}

.newsletter {
  display: flex;
  margin-top: 1.5rem;
}

.newsletter input {
  flex: 1;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius) 0 0 var(--radius);
  font-family: inherit;
  background-color: var(--background);
  color: var(--text-dark);
}

.newsletter button {
  padding: 0.8rem 1rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
  transition: all var(--transition);
}

.newsletter button:hover {
  background: var(--primary-dark);
}

.footer h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.footer-links ul li {
  margin-bottom: 0.8rem;
}

.footer-links ul li a {
  color: var(--text-light);
  transition: all var(--transition);
}

.footer-links ul li a:hover, .footer-links ul li a.active {
  color: var(--primary);
  transform: translateX(3px);
  display: inline-block;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 1rem;
}

.contact-list li i {
  color: var(--primary);
  font-size: 1.1rem;
  margin-top: 4px;
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-icons a {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-light);
  transition: all var(--transition);
}

.social-icons a:hover {
  background-color: var(--primary);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  gap: 1rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.copyright {
  color: var(--text-lighter);
  font-size: 0.9rem;
}

.legal-links {
  display: flex;
  gap: 1.5rem;
}

.legal-links a {
  color: var(--text-lighter);
  font-size: 0.9rem;
  transition: all var(--transition);
}

.legal-links a:hover {
  color: var(--primary);
}

/* Animations supplémentaires pour l'effet de zoom */
@keyframes zoom-in {
  0% { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes zoom-out {
  0% { transform: scale(1.1); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.pulse {
  animation: pulse-animation 0.3s cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-animation {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Media Queries pour responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .buttons {
    flex-direction: column;
  }

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

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

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }

  .badge {
    font-size: 0.75rem;
  }

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

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

/* Correction pour les avatars */
.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* CSS pour mode clair */
body:not(.dark-theme) {
  --text-dark: var(--text-dark-light);
  --text-light: var(--text-light-light);
  --text-lighter: var(--text-lighter-light);
  --background: var(--background-light);
  --background-alt: var(--background-alt-light);
  --border: var(--border-light);
  --shadow: var(--shadow-light);
  --shadow-strong: var(--shadow-strong-light);
}

body:not(.dark-theme) .header {
  background-color: rgba(255, 255, 255, 0.95);
}

body:not(.dark-theme) .header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
}

body:not(.dark-theme) .mobile-menu {
  background-color: var(--background-light);
}

/* Pour rendre les animations fluides */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}