/* ================================================
   CHARTE GRAPHIQUE - Psynapse Bretagne
   Modernisée : Violet profond + Or + Bleu océan
   ================================================ */

:root {
  /* Palette principale */
  --color-primary: #4A1478;        /* Violet profond */
  --color-primary-dark: #3a0f5c;   /* Violet foncé */
  --color-primary-light: #6b2fa3;  /* Violet clair */
  
  /* Couleurs secondaires */
  --color-ocean: #0A4D68;          /* Bleu océan */
  --color-ocean-dark: #073b4c;     /* Bleu océan foncé */
  --color-ocean-light: #0d6a8a;    /* Bleu océan clair */
  
  /* Accents */
  --color-gold: #D4A853;           /* Or */
  --color-gold-light: #e8c47a;     /* Or clair */
  --color-gold-dark: #b8923f;      /* Or foncé */
  
  /* Couleurs neutres */
  --color-white: #ffffff;
  --color-bg-light: #f8f6fc;
  --color-bg-offset: #f0edf5;
  --color-text: #2d2d2d;
  --color-text-muted: #6b6b6b;
  --color-border: #e0dce8;
  
  /* Typographie */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Ombres */
  --shadow-sm: 0 2px 8px rgba(74, 20, 120, 0.08);
  --shadow-md: 0 4px 20px rgba(74, 20, 120, 0.12);
  --shadow-lg: 0 8px 40px rgba(74, 20, 120, 0.16);
  --shadow-hover: 0 12px 32px rgba(74, 20, 120, 0.20);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50%;
}

/* ================================================
   TYPOGRAPHIE
   ================================================ */
body {
  font-family: var(--font-body);
  color: var(--color-text);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: 1rem;
}

/* ================================================
   BOUTONS
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  transform: scale(0);
  transition: transform 0.5s, opacity 0.3s;
  opacity: 0;
}

.btn:active::after {
  transform: scale(2);
  opacity: 1;
  transition: transform 0s, opacity 0s;
}

/* Bouton principal */
.btn-primary {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
  color: var(--color-primary);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 100%);
}

/* Bouton secondaire */
.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-3px);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
}

/* ================================================
   STICKY HEADER
   ================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
}

.site-header .logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header .logo img {
  height: 50px;
  width: auto;
}

.site-header .main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-header .main-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

.site-header .main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition-normal);
}

.site-header .main-nav a:hover {
  color: var(--color-primary);
}

.site-header .main-nav a:hover::after {
  width: 100%;
}

/* ================================================
   MEGA MENU
   ================================================ */
.main-nav .menu-item-has-children {
  position: relative;
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  min-width: 600px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.menu-item-has-children:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.mega-menu-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.mega-menu-item:hover {
  background: var(--color-bg-light);
}

.mega-menu-item .icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-ocean) 100%);
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  color: var(--color-white);
}

.mega-menu-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.mega-menu-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ================================================
   HERO SECTION
   ================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  background: linear-gradient(135deg, 
    var(--color-primary) 0%, 
    var(--color-primary-dark) 50%,
    var(--color-ocean) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero .container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  text-align: center;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease forwards;
}

.hero .subtitle {
  font-size: 1.5rem;
  color: var(--color-gold-light);
  margin-bottom: 1rem;
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero .description {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 700px;
  margin: 0 auto 2.5rem;
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero .usp-badges {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s forwards;
  opacity: 0;
}

.hero .usp-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-weight: 500;
}

.hero .usp-badge svg {
  width: 24px;
  height: 24px;
  fill: var(--color-gold);
}

.hero .cta-group {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.8s forwards;
  opacity: 0;
}

/* ================================================
   SECTIONS COMMUNES
   ================================================ */
.section {
  padding: var(--spacing-xl) 2rem;
}

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

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

.section-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

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

/* ================================================
   CARTES (USP, Formation, etc.)
   ================================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-ocean) 100%);
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
  color: var(--color-white);
}

.card-icon svg {
  width: 36px;
  height: 36px;
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-text-muted);
  margin: 0;
}

/* Grid de cartes */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* ================================================
   SECTION CURSUS
   ================================================ */
.cursus-timeline {
  position: relative;
  padding: 2rem 0;
}

.cursus-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-gold));
  transform: translateX(-50%);
}

.cursus-step {
  display: flex;
  align-items: center;
  margin-bottom: 3rem;
  position: relative;
}

.cursus-step:nth-child(odd) {
  flex-direction: row;
}

.cursus-step:nth-child(even) {
  flex-direction: row-reverse;
}

.cursus-step-content {
  flex: 1;
  padding: 0 2rem;
}

.cursus-step:nth-child(odd) .cursus-step-content {
  text-align: right;
}

.cursus-step:nth-child(even) .cursus-step-content {
  text-align: left;
}

.cursus-step-marker {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-md);
}

/* ================================================
   TÉMOIGNAGES
   ================================================ */
.testimonials-carousel {
  position: relative;
  overflow: hidden;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  margin: 1rem;
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid var(--color-gold);
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-primary);
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.testimonial-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: #e8f5e9;
  color: #2e7d32;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

.testimonial-quote {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.7;
}

.testimonial-quote::before {
  content: '"';
  font-size: 3rem;
  color: var(--color-gold);
  line-height: 0;
  vertical-align: -0.5rem;
  margin-right: 0.5rem;
}

/* ================================================
   MICRO-INTERACTIONS
   ================================================ */

/* Hover scale sur images */
img {
  transition: transform var(--transition-normal);
}

img:hover {
  transform: scale(1.03);
}

/* Liens avec underline animé */
a:not(.btn) {
  position: relative;
  text-decoration: none;
}

a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

a:not(.btn):hover::after {
  width: 100%;
}

/* Focus states pour accessibilité */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* Animation au scroll (fade in) */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* ================================================
   ANIMATIONS KEYFRAMES
   ================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 768px) {
  .hero {
    padding: 6rem 1.5rem 3rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero .subtitle {
    font-size: 1.25rem;
  }
  
  .hero .cta-group {
    flex-direction: column;
  }
  
  .hero .cta-group .btn {
    width: 100%;
  }
  
  .section {
    padding: var(--spacing-lg) 1.5rem;
  }
  
  .mega-menu {
    min-width: 100%;
    left: 0;
    transform: translateX(0) translateY(20px);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
  
  .menu-item-has-children:hover .mega-menu {
    transform: translateX(0) translateY(0);
  }
  
  .mega-menu-grid {
    grid-template-columns: 1fr;
  }
  
  .cursus-timeline::before {
    left: 30px;
  }
  
  .cursus-step {
    flex-direction: column !important;
    align-items: flex-start;
    padding-left: 80px;
  }
  
  .cursus-step-content {
    text-align: left !important;
    padding: 0;
  }
  
  .cursus-step-marker {
    position: absolute;
    left: 0;
  }
}

/* ================================================
   UTILITAIRES
   ================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden { display: none !important; }
.visible { display: block !important; }

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