/* ============================================
   VARYANS WEBSITE - DYNAMIC THEME
   ============================================
   Thème: Bleu marine + Beige/Crème avec animations GSAP
   Design: Moderne, dynamique et interactif
============================================ */

/* ============================================
   CSS VARIABLES - EASY THEME CUSTOMIZATION
   Modifier ces valeurs pour changer le thème
============================================ */
:root {
  /* Primary Colors - Basées sur le logo Varyans */
  --color-primary: #7a8a9e;        /* Bleu-gris du logo */
  --color-primary-dark: #1a1f3a;   /* Bleu marine foncé */
  --color-primary-light: #a5b5c9;  /* Bleu-gris clair */

  --color-secondary: #f5e6d3;      /* Beige/Crème du logo */
  --color-secondary-dark: #e8d4b8; /* Beige foncé */
  --color-secondary-light: #faf3ea; /* Beige clair */

  /* Neutral Colors */
  --color-dark: #1a1f3a;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-background: #ffffff;
  --color-background-alt: #f8f9fa;
  --color-border: #e0e0e0;
  
  /* Status Colors */
  --color-success: #4caf50;
  --color-error: #f44336;
  --color-warning: #ff9800;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Typography */
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: 16px;
  --font-size-small: 0.875rem;
  --font-size-large: 1.125rem;
  --line-height: 1.6;
  
  /* Effects - Enhanced for dynamic theme */
  --border-radius: 12px;
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --box-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Animation durations */
  --duration-fast: 0.3s;
  --duration-normal: 0.6s;
  --duration-slow: 1s;
}

/* ============================================
   RESET & BASE STYLES
============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

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

/* ============================================
   TYPOGRAPHY
============================================ */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-dark);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

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

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

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

.section-alt {
  background-color: var(--color-background-alt);
}

/* ============================================
   NAVIGATION
============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  transition: var(--transition);
}

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

.navbar-logo {
  display: flex;
  align-items: center;
}

.navbar-logo .logo-img,
.logo-img {
  height: 76px !important;
  width: auto !important;
  max-width: none !important;
  transition: var(--transition);
}

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

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

.navbar-menu a:not(.lang-btn) {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.navbar-menu a:not(.lang-btn):hover,
.navbar-menu a:not(.lang-btn).active {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.lang-switcher {
  display: flex;
  gap: var(--spacing-xs);
  margin-left: var(--spacing-md);
}

.navbar-menu .lang-btn {
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: white !important;
  color: var(--color-text) !important;
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--font-size-small);
}

.navbar-menu .lang-btn.active {
  background-color: var(--color-primary-dark) !important;
  color: white !important;
  border-color: var(--color-primary-dark) !important;
}

.navbar-menu .lang-btn:hover:not(.active) {
  background-color: var(--color-primary-light) !important;
  color: var(--color-primary-dark) !important;
  border-color: var(--color-primary) !important;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-dark);
}

/* ============================================
   HERO SECTION
============================================ */
.hero {
  min-height: 40vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary-light) 100%);
  position: relative;
  overflow: hidden;
  margin-top: 125px;
  padding: 3rem 1rem;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(168, 216, 234, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(255, 165, 165, 0.3) 0%, transparent 50%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

.hero p {
  font-size: var(--font-size-large);
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   BUTTONS
============================================ */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: var(--font-size-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  box-shadow: var(--box-shadow);
}

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

.btn-secondary {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-secondary-light);
  box-shadow: var(--box-shadow);
}

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

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

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

/* ============================================
   CARDS
============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.card {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

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

.card-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card h3 {
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--color-text-light);
}

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-dark);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(168, 216, 234, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* ============================================
   FOOTER
============================================ */
.footer {
  background: linear-gradient(135deg, var(--color-dark) 0%, #1a252f 100%);
  color: white;
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.footer-section a:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   COOKIE BANNER (Loi 25)
============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-md);
  z-index: 1001;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.show {
  transform: translateY(0);
}

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

.cookie-text {
  flex: 1;
}

.cookie-text h4 {
  margin-bottom: var(--spacing-xs);
}

.cookie-text p {
  color: var(--color-text-light);
  font-size: var(--font-size-small);
  margin-bottom: 0;
}

.cookie-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* ============================================
   UTILITIES
============================================ */
.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ============================================
   GSAP ANIMATION CLASSES (Dynamic Theme)
============================================ */

/* Fade in animations */
.fade-in {
  opacity: 0;
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
}

.fade-in-down {
  opacity: 0;
  transform: translateY(-30px);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
}

/* Scale animations */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
}

/* Stagger containers */
.stagger-container > * {
  opacity: 0;
  transform: translateY(20px);
}

/* Parallax elements */
.parallax {
  will-change: transform;
}

/* Smooth reveal for sections */
.reveal-section {
  opacity: 0;
  transform: translateY(50px);
}

/* Enhanced hover effects for dynamic theme */
.btn-dynamic {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-dynamic::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  z-index: -1;
}

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

/* Card hover effects enhanced */
.card-dynamic {
  transition: var(--transition);
  cursor: pointer;
}

.card-dynamic:hover {
  transform: translateY(-10px) scale(1.02);
}

/* Gradient animation */
@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.animated-gradient {
  background-size: 200% 200%;
  animation: gradient-shift 10s ease infinite;
}

/* Text reveal animation */
.text-reveal {
  overflow: hidden;
  display: inline-block;
}

.text-reveal span {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
}

/* Magnetic button effect */
.magnetic {
  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Loading shimmer effect */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.shimmer {
  animation: shimmer 2s infinite;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 1000px 100%;
}

/* ============================================
   RESPONSIVE DESIGN
============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .navbar-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow);
    transform: translateX(-100%);
    transition: var(--transition);
  }

  .navbar-menu.active {
    transform: translateX(0);
  }

  .mobile-menu-toggle {
    display: block;
  }

  .hero {
    min-height: 64vh;
    margin-top: 125px;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .cookie-content {
    flex-direction: column;
    text-align: center;
  }

  .cookie-actions {
    width: 100%;
    justify-content: center;
  }
}

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

  .btn {
    width: 100%;
  }
}