/* ============================================================
   FORMATION IA AGENTIQUE — LANDING PAGE
   Palette sombre premium · Bleu électrique / Violet
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* --- Custom Properties (Design Tokens) --- */
:root {
  /* Colors (Dark mode by default) */
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f0f1a;
  --bg-card: rgba(15, 15, 30, 0.6);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
  --bg-navbar-scrolled: rgba(10, 10, 15, 0.85);

  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-pink: #ec4899;

  --gradient-main: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  --gradient-subtle: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(139,92,246,0.15));
  --gradient-glow: linear-gradient(135deg, rgba(59,130,246,0.3), rgba(139,92,246,0.3));
  --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,0.15) 0%, transparent 60%),
                   radial-gradient(ellipse at 80% 50%, rgba(139,92,246,0.1) 0%, transparent 50%),
                   radial-gradient(ellipse at 20% 80%, rgba(6,182,212,0.08) 0%, transparent 40%);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(59, 130, 246, 0.3);

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 120px 0;
  --container-width: 1200px;
  --container-padding: 0 24px;

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-glow-blue: 0 0 40px rgba(59,130,246,0.2), 0 0 80px rgba(59,130,246,0.1);
  --shadow-glow-purple: 0 0 40px rgba(139,92,246,0.2), 0 0 80px rgba(139,92,246,0.1);

  /* Transitions */
  --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Light Mode Tokens (Vague 5) --- */
body.light-mode {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(15, 23, 42, 0.02);
  --bg-glass-hover: rgba(15, 23, 42, 0.04);
  --bg-navbar-scrolled: rgba(248, 250, 252, 0.85);
  
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-accent: rgba(59, 130, 246, 0.15);
  
  --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.05), 0 1px 3px rgba(15, 23, 42, 0.02);
  
  --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
}

/* Transitions de theme globales */
body, nav, section, .principe-card, .cas-card, .faq-item, .testimonial-card, .info-card, .details-title, .details-desc, .layer-details-box, h1, h2, h3, h4, p, a, button, span {
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

/* --- Background Effects --- */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-hero);
  pointer-events: none;
  z-index: 0;
}

/* Animated grid */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* --- Background Animated Glows --- */
.bg-glows {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  will-change: transform;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.25) 0%, transparent 80%);
  top: -10%;
  left: 10%;
  animation: floatOrb1 25s infinite alternate ease-in-out;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 80%);
  bottom: 10%;
  right: 10%;
  animation: floatOrb2 30s infinite alternate ease-in-out;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 80%);
  top: 40%;
  left: 50%;
  animation: floatOrb3 20s infinite alternate ease-in-out;
}

@keyframes floatOrb1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(120px, 80px) scale(1.1); }
  100% { transform: translate(-50px, 150px) scale(0.9); }
}

@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-150px, -100px) scale(0.95); }
  100% { transform: translate(80px, 50px) scale(1.05); }
}

@keyframes floatOrb3 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-80px, 120px) scale(1.15); }
  100% { transform: translate(100px, -60px) scale(0.9); }
}

/* --- Container --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
  position: relative;
  z-index: 1;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 1px;
}

.section-title {
  margin-bottom: 20px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 700px;
  line-height: 1.8;
}

/* --- Sections --- */
section {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-medium);
}

.navbar.scrolled {
  background: var(--bg-navbar-scrolled);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-primary);
}

.navbar-brand .brand-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-main);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

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

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: var(--transition-fast);
  border-radius: 1px;
}

.navbar-links a:hover::after {
  width: 100%;
}

.navbar-cta {
  padding: 10px 24px;
  background: var(--gradient-main);
  color: white !important;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-fast);
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-blue);
}

.navbar-cta::after {
  display: none !important;
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  animation: fadeInUp 0.6s ease-out;
}

.hero-badge .badge-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero h1 {
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 40px;
  line-height: 1.8;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 60px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-main);
  color: white;
  box-shadow: 0 4px 20px rgba(59,130,246,0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(59,130,246,0.5);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

/* --- Hero Stats --- */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

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

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Pain Points Section --- */
.pain-points-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.pain-card {
  padding: 28px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition-medium);
}

.pain-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.pain-card .pain-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.pain-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.pain-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Modules Section --- */
.modules-timeline {
  position: relative;
  margin-top: 60px;
}

.modules-timeline::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom,
    var(--accent-blue),
    var(--accent-purple),
    var(--accent-cyan),
    var(--accent-pink),
    var(--accent-blue),
    var(--accent-purple),
    var(--accent-cyan));
  border-radius: 1px;
}

.module-card {
  position: relative;
  margin-bottom: 32px;
  padding-left: 100px;
}

.module-number {
  position: absolute;
  left: 20px;
  top: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: white;
  z-index: 2;
  box-shadow: 0 0 20px rgba(59,130,246,0.3);
}

.module-number.m1 { background: linear-gradient(135deg, #22c55e, #16a34a); }
.module-number.m2 { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.module-number.m3 { background: linear-gradient(135deg, #f59e0b, #d97706); }
.module-number.m4 { background: linear-gradient(135deg, #ef4444, #dc2626); }
.module-number.m5 { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.module-number.m6 { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.module-number.m7 { background: linear-gradient(135deg, #ec4899, #db2777); }

.module-body {
  padding: 28px 32px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition-medium);
}

.module-body:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
  transform: translateX(8px);
  box-shadow: var(--shadow-card);
}

.module-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.module-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.module-meta {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.module-tag {
  padding: 4px 12px;
  background: var(--gradient-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.module-analogy {
  font-style: italic;
  color: var(--accent-blue);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.module-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.module-deliverable {
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(34, 197, 94, 0.05);
  border: 1px solid rgba(34, 197, 94, 0.15);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.module-deliverable strong {
  color: #16a34a;
}

/* --- Principes Section --- */
.principes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.principe-card {
  padding: 32px 24px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.principe-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0;
  transition: var(--transition-fast);
}

.principe-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

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

.principe-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}

.principe-card h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.principe-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Formateur Section --- */
.formateur-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.formateur-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: center;
  margin-top: 48px;
}

.formateur-visual {
  position: relative;
}

.formateur-card {
  padding: 40px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.formateur-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-main);
}

.formateur-avatar {
  width: 120px;
  height: 120px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin: 0 auto 20px;
  box-shadow: var(--shadow-glow-blue);
}

.formateur-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.formateur-role {
  color: var(--accent-blue);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 20px;
}

.formateur-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.formateur-stat {
  padding: 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.formateur-stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.formateur-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.formateur-details h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.formateur-details p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.formateur-highlights {
  list-style: none;
  margin-top: 20px;
}

.formateur-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.formateur-highlights li:last-child {
  border-bottom: none;
}

.formateur-highlights .check {
  color: #22c55e;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Infos Pratiques --- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.info-card {
  padding: 32px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition-medium);
}

.info-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

.info-card .info-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.info-card h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.info-card ul {
  list-style: none;
}

.info-card ul li {
  padding: 6px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-card ul li::before {
  content: '\203A';
  color: var(--accent-blue);
  font-weight: bold;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-box {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 40px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
}

.cta-box h2 {
  margin-bottom: 16px;
}

.cta-box p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* --- Contact Form --- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}

.form-grid-fields {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* --- Footer --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer a {
  color: var(--accent-blue);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

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

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Stagger children */
.stagger-children > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(7) { transition-delay: 0.35s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .formateur-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .modules-timeline::before {
    left: 24px;
  }

  .module-card {
    padding-left: 72px;
  }

  .module-number {
    left: 4px;
    width: 38px;
    height: 38px;
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }

  .navbar-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--border-subtle);
  }

  .navbar-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .hero-cta-group {
    flex-direction: column;
  }

  .form-row, .form-grid-fields {
    grid-template-columns: 1fr;
  }

  .pain-points-grid {
    grid-template-columns: 1fr;
  }

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

  .module-body {
    padding: 20px;
  }

  .module-header {
    flex-direction: column;
  }

  /* Désactivation des animations de reveal sur mobile pour assurer la visibilité immédiate */
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .stagger-children > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

@media (max-width: 576px) {
  .modules-timeline::before {
    display: none;
  }

  .module-card {
    padding-left: 0;
  }

  .module-number {
    position: static;
    margin-bottom: 16px;
  }

  .module-body {
    padding: 20px 16px;
  }
}

@media (max-width: 480px) {
  .principes-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-box {
    padding: 40px 24px;
  }
}

/* --- SVG Icons styling --- */
svg.ui-icon {
  width: 1em;
  height: 1em;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: middle;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.brand-icon svg.ui-icon {
  width: 20px;
  height: 20px;
  color: white;
}

.pain-icon svg.ui-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-blue);
}

.principe-icon svg.ui-icon {
  width: 40px;
  height: 40px;
  color: var(--accent-blue);
}

.formateur-avatar svg.ui-icon {
  width: 56px;
  height: 56px;
  color: white;
}

.info-icon svg.ui-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-blue);
}

/* Hover effect on icons */
.pain-card:hover .pain-icon svg.ui-icon,
.principe-card:hover .principe-icon svg.ui-icon,
.info-card:hover .info-icon svg.ui-icon {
  transform: scale(1.1);
  color: var(--accent-purple);
}

/* --- Spinner Animation (Form Submit) --- */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* --- Restriction Géographique --- */
.cta-restriction {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: -12px auto 28px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.12);
  padding: 8px 18px;
  border-radius: var(--radius-md);
  max-width: fit-content;
}

.cta-restriction svg.ui-icon {
  width: 16px;
  height: 16px;
  stroke: var(--accent-blue);
  flex-shrink: 0;
}

/* --- Pricing Selector in Form --- */
.pricing-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 8px;
}

@media (max-width: 768px) {
  .pricing-selector {
    grid-template-columns: 1fr;
  }
}

.pricing-option {
  position: relative;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.pricing-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.pricing-option:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-2px);
}

.pricing-option:has(input:checked),
.pricing-option.active {
  background: rgba(59, 130, 246, 0.05);
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
}

.option-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 4px;
}

.option-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.option-price {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.option-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
  flex-grow: 1;
}

.option-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 10px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: #93c5fd;
  transition: var(--transition-fast);
}

.pricing-option:has(input:checked) .option-badge,
.pricing-option.active .option-badge {
  background: var(--gradient-main);
  border-color: transparent;
  color: white;
}

/* --- Architecture Stack (Company OS Layers) --- */
.architecture-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  margin-top: 48px;
  align-items: center;
}

@media (max-width: 992px) {
  .architecture-container {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
  }
}

.layers-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layer-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

.layer-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: transparent;
  transition: all var(--transition-fast);
}

.layer-item.active,
.layer-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--layer-color) !important;
  transform: translateX(8px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.layer-item.active::before,
.layer-item:hover::before {
  background: var(--layer-color);
  box-shadow: 0 0 12px var(--layer-color);
}

.layer-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-muted);
  width: 28px;
  transition: color var(--transition-fast);
}

.layer-item:hover .layer-num,
.layer-item.active .layer-num {
  color: var(--layer-color);
}

.layer-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  text-align: left;
}

/* Panneau de détails */
.layer-details-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  box-shadow: var(--shadow-card);
  text-align: left;
  transition: opacity var(--transition-fast) ease-in-out, transform var(--transition-fast) ease-in-out, background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast) !important;
  transform: translateY(0);
}

.layer-details-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--layer-color-active, #ec4899);
  transition: background var(--transition-medium);
}

.details-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.details-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.details-icon {
  font-size: 1.8rem;
  line-height: 1;
}

/* --- ROI Simulator Mobile styling --- */
@media (max-width: 768px) {
  .roi-simulator {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
    padding: 20px !important;
  }
  .simulator-results {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    padding: 16px !important;
  }
}

/* --- Fondements Section Grids --- */
.fondements-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.fondements-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 992px) {
  .fondements-grid-3 {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .fondements-grid-2 {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
}

/* --- Layer Badge --- */
.layer-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* --- Cas Usages Section --- */
.cas-usages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.cas-card {
  transition: all var(--transition-medium) ease-in-out !important;
}

.cas-card:hover {
  border-color: rgba(59, 130, 246, 0.3) !important;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
}

@media (max-width: 992px) {
  .cas-usages-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
}

/* --- theme toggle button (Vague 5) --- */
.theme-toggle-btn {
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle-btn:hover {
  transform: scale(1.15);
  background-color: var(--bg-glass);
}

.theme-toggle-btn:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

/* --- range input touch optimization (Vague 5) --- */
input[type="range"]::-webkit-slider-thumb {
  width: 28px !important;
  height: 28px !important;
  cursor: pointer !important;
}

input[type="range"]::-moz-range-thumb {
  width: 28px !important;
  height: 28px !important;
  cursor: pointer !important;
}