/* ===== VARIABLES CSS ===== */
:root {
  /* Couleurs principales */
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary-color: #f59e0b;
  --accent-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --success-color: #10b981;

  /* Couleurs neutres */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --black: #000000;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

  /* Typographie */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-secondary: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Tailles de police */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Espacements */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Rayons de bordure */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;

  /* 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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.3);
  --shadow-glow-lg: 0 0 40px rgba(37, 99, 235, 0.4);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

/* ===== RESET ET BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== UTILITAIRES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--space-6);
}

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

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

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

.font-light {
  font-weight: 300;
}

.font-normal {
  font-weight: 400;
}

.font-medium {
  font-weight: 500;
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.font-extrabold {
  font-weight: 800;
}

.font-black {
  font-weight: 900;
}

.antialiased {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== LOADER ===== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
  color: white;
}

.loader-logo {
  margin-bottom: var(--space-6);
}

.loader-logo .logo-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin: 0 auto;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: pulse 2s infinite;
}

.loader-text {
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
  opacity: 0.9;
}

.loader-progress {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 0 auto;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(200px);
  }
}

/* ===== CURSEUR PERSONNALISÉ ===== */
.custom-cursor {
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  mix-blend-mode: difference;
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--primary-color);
  border-radius: 50%;
  position: absolute;
  top: -4px;
  left: -4px;
  transition: transform 0.1s ease;
}

.cursor-outline {
  width: 40px;
  height: 40px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  position: absolute;
  top: -20px;
  left: -20px;
  transition: all 0.3s ease;
  opacity: 0.5;
}

.custom-cursor.hover .cursor-outline {
  transform: scale(1.5);
  opacity: 1;
}

/* ===== PARTICULES DE FOND ===== */
.particles-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.navbar {
  padding: var(--space-4) 0;
  transition: padding var(--transition-normal);
}

.header.scrolled .navbar {
  padding: var(--space-3) 0;
}

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

/* ===== LOGO ===== */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: var(--space-3);
  transition: transform var(--transition-normal);
}

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

.logo-icon {
  position: relative;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: white;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.logo-icon span {
  position: relative;
  z-index: 2;
}

.logo-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: rotate 3s linear infinite;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--gray-800);
  font-family: var(--font-secondary);
}

.logo-tagline {
  font-size: var(--text-xs);
  color: var(--gray-500);
  font-weight: var(--font-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ===== NAVIGATION ===== */
.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-8);
  align-items: center;
}

.nav-link {
  position: relative;
  text-decoration: none;
  color: var(--gray-700);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  padding: var(--space-2) 0;
  transition: color var(--transition-normal);
  overflow: hidden;
}

.nav-link::before {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: translateY(100%);
  transition: transform var(--transition-bounce);
  pointer-events: none;
  opacity: 0;
}

.nav-link:hover::before {
  opacity: 1;
  transform: translateY(0);
}

.nav-link:hover {
  color: transparent;
}

/* ===== ACTIONS DE NAVIGATION ===== */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ===== SÉLECTEUR DE LANGUE ===== */
.language-switcher {
  position: relative;
}

.lang-dropdown {
  position: relative;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.lang-toggle:hover {
  background: var(--gray-200);
  transform: translateY(-1px);
}

.lang-arrow {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform var(--transition-normal);
}

.lang-dropdown.active .lang-arrow {
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  backdrop-filter: blur(20px);
}

.lang-dropdown.active .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  text-decoration: none;
  color: var(--gray-700);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  font-size: var(--text-sm);
}

.lang-option:hover {
  background: var(--gray-50);
  transform: translateX(4px);
}

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

.lang-option .flag {
  font-size: var(--text-lg);
}

/* ===== BOUTONS ===== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

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

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

.btn-glow {
  box-shadow: var(--shadow-glow);
}

.btn-glow:hover {
  box-shadow: var(--shadow-glow-lg);
}

.btn-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.btn:hover .btn-shine {
  left: 100%;
}

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

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

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-block {
  width: 100%;
}

/* ===== MENU MOBILE ===== */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

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

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: white;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.mobile-menu-overlay.active .mobile-menu-content {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--gray-200);
}

.mobile-menu-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-close svg {
  width: 24px;
  height: 24px;
  stroke: var(--gray-700);
  stroke-width: 2;
  fill: none;
}

.mobile-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-link {
  padding: var(--space-4);
  text-decoration: none;
  color: var(--gray-700);
  font-weight: var(--font-medium);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.mobile-nav-link:hover {
  background: var(--gray-50);
  color: var(--primary-color);
  transform: translateX(8px);
}

.mobile-menu-footer {
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-200);
}

/* ===== BARRE DE PROGRESSION ===== */
.scroll-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.1s ease;
}

/* ===== ANIMATIONS ===== */
@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-4);
  }
}

@media (max-width: 768px) {

  .nav-menu,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .logo-text {
    display: none;
  }

  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }

  .mobile-menu-content {
    width: 100%;
  }
}

/* ===== ACCESSIBILITÉ ===== */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== FOCUS STATES ===== */
.btn:focus,
.nav-link:focus,
.lang-toggle:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {

  .header,
  .mobile-menu-overlay,
  .page-loader,
  .custom-cursor,
  .particles-background {
    display: none !important;
  }
}

.white-icon {
  color: white;
}