/* ============================================================
   ELM Evolution – Style ultra professionnel B2B Premium
   Typographie : Montserrat (titres) + Open Sans (corps)
   Palette : bleu nuit #0a0f1e | cyan #00d4ff | violet #7c3aed
   ============================================================ */

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

:root {
  --navy:      #0a0f1e;
  --navy-mid:  #0d1530;
  --navy-light:#1a2340;
  --cyan:      #00d4ff;
  --cyan-dark: #0099bb;
  --violet:    #7c3aed;
  --violet-light:#9d62f5;
  --white:     #ffffff;
  --text-light:#b8c5d6;
  --text-muted:#6b7a95;
  --glass-bg:  rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --shadow-soft: 0 10px 40px rgba(0,0,0,0.25);
  --shadow-glow: 0 0 30px rgba(0,212,255,0.2);
  --radius-lg: 16px;
  --radius-md: 10px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Open Sans', sans-serif;
  background: var(--navy);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--cyan-dark); border-radius: 3px; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; line-height: 1.2; }

h1 {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 900;
  letter-spacing: -1px;
}
h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
}
h3 {
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 600;
}
p { font-size: clamp(15px, 1.1vw, 17px); line-height: 1.75; color: var(--text-light); }

/* ---------- Section label ---------- */
.section-label {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 20px;
  padding: 6px 18px;
  margin-bottom: 20px;
}

/* ---------- Gradient text ---------- */
.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- CTA Buttons ---------- */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-decoration: none;
  color: var(--navy);
  background: linear-gradient(135deg, var(--cyan) 0%, #00aadd 100%);
  padding: 14px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,212,255,0.35);
}
.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.5);
  background: linear-gradient(135deg, #33ddff 0%, var(--cyan) 100%);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--white);
  background: transparent;
  padding: 13px 30px;
  border-radius: 50px;
  border: 1.5px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(0,212,255,0.15);
}

/* ---------- Glassmorphism card ---------- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}
.glass-card:hover {
  border-color: rgba(0,212,255,0.25);
  box-shadow: 0 15px 50px rgba(0,0,0,0.3), 0 0 25px rgba(0,212,255,0.08);
  transform: translateY(-4px);
}

/* ---------- Section background with overlay ---------- */
.section-bg {
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
}
.section-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,15,30,0.90) 0%, rgba(13,21,48,0.88) 50%, rgba(10,15,30,0.90) 100%);
  z-index: 0;
}
.section-bg > * { position: relative; z-index: 1; }

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 8px 0;
  transition: all 0.35s ease;
}
#navbar.scrolled {
  background: rgba(8,13,26,0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 6px 0;
  box-shadow: 0 2px 24px rgba(0,0,0,0.45);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  position: relative;
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  padding: 4px 10px;
}
/* Rétroéclairage (halo derrière le logo) */
.nav-logo::before {
  content: "";
  position: absolute;
  inset: -14px -22px;
  border-radius: 999px;
  background:
    radial-gradient(60% 80% at 50% 50%, rgba(0,212,255,0.30), rgba(0,212,255,0.10) 45%, transparent 72%);
  filter: blur(10px);
  opacity: 0.55;
  transition: opacity 0.45s ease, transform 0.45s ease, filter 0.45s ease;
  pointer-events: none;
  z-index: 0;
}
.nav-logo:hover::before {
  opacity: 1;
  transform: scale(1.12);
  filter: blur(14px);
}
.nav-logo img {
  position: relative;
  z-index: 1;
  width: auto;
  height: 44px;
  display: block;
  opacity: 1;
  filter: brightness(1.18) contrast(1.06)
    drop-shadow(0 0 6px rgba(0,212,255,0.45))
    drop-shadow(0 0 18px rgba(0,212,255,0.22));
  transition: filter 0.4s ease, transform 0.4s ease;
}
.nav-logo:hover img {
  transform: scale(1.03);
  filter: brightness(1.45) contrast(1.1)
    drop-shadow(0 0 10px rgba(0,212,255,0.75))
    drop-shadow(0 0 28px rgba(0,212,255,0.45))
    drop-shadow(0 0 54px rgba(0,212,255,0.25));
}

/* Fallback si logo ne charge pas */
.nav-logo img[alt] {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: var(--white);
}
/* Logo texte fallback */
.nav-logo-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: var(--white);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.nav-logo-text span { color: var(--cyan); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}
.nav-menu a {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(255,255,255,0.55);
  padding: 7px 11px;
  border-radius: 5px;
  transition: all 0.25s ease;
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 16px;
  height: 1.5px;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform 0.25s ease;
}
.nav-menu a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.05);
}
.nav-menu a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

/* CTA navbar spécifique — plus compact que le .btn-cta global */
.nav-cta.btn-cta {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 7px 15px;
  border-radius: 50px;
  box-shadow: 0 2px 12px rgba(0,212,255,0.20);
  gap: 5px;
}
.nav-cta.btn-cta i { font-size: 9px; }
.nav-cta.btn-cta:hover {
  box-shadow: 0 3px 18px rgba(0,212,255,0.35);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  z-index: 1100;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,15,30,0.97);
  backdrop-filter: blur(20px);
  z-index: 1050;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  transition: var(--transition);
}
.mobile-menu a:hover { color: var(--cyan); }

/* ============================================================
   HERO
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-image: url('https://images.unsplash.com/photo-1497366216548-37526070297c?w=1920&q=80');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(10,15,30,0.92) 0%,
    rgba(13,21,48,0.85) 40%,
    rgba(10,15,30,0.90) 100%);
  z-index: 1;
}
/* Subtle animated gradient overlay */
#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(0,212,255,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(124,58,237,0.08) 0%, transparent 50%);
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 1400px;
  margin: 0 auto;
  padding: 120px 40px 80px;
  width: 100%;
}

/* Layout 2 colonnes */
.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-left { display: flex; flex-direction: column; }

/* Colonne droite — offres */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-offers-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 4px;
}

/* Carte offre */
.hero-offer-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 12px;
  padding: 18px 20px;
  backdrop-filter: blur(16px);
  transition: border-color 0.3s ease, background 0.3s ease;
  position: relative;
  overflow: hidden;
}
.hero-offer-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}
.hero-offer-card:hover {
  border-color: rgba(0,212,255,0.22);
  background: rgba(0,212,255,0.04);
}

.hero-offer-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 800;
  color: var(--cyan);
  opacity: 0.5;
  padding-top: 3px;
  flex-shrink: 0;
  letter-spacing: 1px;
}
.hero-offer-body { display: flex; flex-direction: column; gap: 4px; }
.hero-offer-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.7;
}
.hero-offer-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin: 0;
}
.hero-offer-desc {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.55;
  margin: 0;
}

/* Badges référentiels dans le hero */
.hero-refs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 4px;
}
.hero-ref-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.55);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 20px;
  padding: 5px 11px;
  transition: all 0.25s ease;
}
.hero-ref-badge i {
  font-size: 9px;
  color: var(--cyan);
  opacity: 0.8;
}
.hero-ref-badge:hover {
  color: rgba(255,255,255,0.85);
  border-color: rgba(0,212,255,0.25);
  background: rgba(0,212,255,0.05);
}

/* Ajustements colonne gauche dans le layout */
.hero-left .hero-content h1,
.hero-left h1 { max-width: 100%; }
.hero-left .hero-text { max-width: 100%; margin-bottom: 32px; }
.hero-left .hero-actions { margin-bottom: 32px; }
.hero-left .hero-tagline { max-width: 100%; }

/* Responsive */
@media (max-width: 900px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}
.hero-eyebrow {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--cyan);
  display: block;
}
.hero-content h1 {
  max-width: 800px;
  margin-bottom: 12px;
  color: var(--white);
}
.hero-content h2 {
  font-size: clamp(20px, 2.5vw, 30px);
  font-weight: 400;
  color: var(--text-light);
  margin-bottom: 36px;
  max-width: 700px;
}
.hero-text {
  max-width: 600px;
  margin-bottom: 48px;
}
.hero-text p { margin-bottom: 16px; }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: nowrap;
  margin-bottom: 32px;
}

/* ISO Badges */
.iso-badges {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.iso-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 8px;
  padding: 10px 18px;
  backdrop-filter: blur(15px);
  transition: var(--transition);
}
.iso-badge:hover {
  background: rgba(0,212,255,0.15);
  border-color: rgba(0,212,255,0.5);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,212,255,0.2);
}
.iso-badge-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 9px;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
}
.iso-badge-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 700;
  color: var(--white);
}

.hero-tagline {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  border-left: 2px solid var(--cyan);
  padding-left: 16px;
  max-width: 100%;
  margin-top: 28px;
  font-style: italic;
}

/* ============================================================
   SECTION SHARED STYLES
   ============================================================ */
section { padding: 100px 0; }

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}
#roi .section-header {
  margin-bottom: 24px;
}
#roi .section-header h2 {
  font-size: clamp(22px, 2.5vw, 32px);
}
#roi .section-header p {
  font-size: 14px;
}
#roi {
  padding: 60px 0;
}
.section-header h2 { margin-bottom: 20px; color: var(--white); }
.section-header p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 17px;
  color: var(--text-light);
}

/* Grid utilities */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }

/* Card icon (inline, à côté du titre h3) */
.card-title-icon {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  margin-bottom: 14px;
  font-size: 17px;
  line-height: 1.35;
}
.card-title-icon i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15) 0%, rgba(124,58,237,0.15) 100%);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: 9px;
  font-size: 15px;
  color: var(--cyan);
  flex-shrink: 0;
}
.glass-card h3 { color: var(--white); margin-bottom: 14px; font-size: 18px; }
.glass-card p { color: var(--text-light); font-size: 15px; }

/* ============================================================
   SECTION CONTEXTE (#context)
   ============================================================ */
#context {
  background-image: url('https://images.unsplash.com/photo-1560472354-b33ff0c44a43?w=1920&q=80');
}

/* ============================================================
   SECTION RÉFÉRENTIELS (#referentiels)
   ============================================================ */
#referentiels {
  background: var(--navy-mid);
}

.ref-card {
  display: flex;
  gap: 20px;
  align-items: center;
}
.ref-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15) 0%, rgba(124,58,237,0.15) 100%);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--cyan);
  flex-shrink: 0;
}

/* ============================================================
   SECTION ROI (#roi)
   ============================================================ */
#roi {
  background-image: url('https://images.unsplash.com/photo-1542744173-8e7e53415bb0?w=1920&q=80');
}

.roi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}
.roi-card { padding: 20px 24px; }
.roi-card.featured {
  border-color: rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.05);
}
.roi-card.featured::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(ellipse at top right, rgba(0,212,255,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.roi-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 2px;
}
.roi-sub {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.roi-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--cyan) 0%, #00aadd 100%);
  color: var(--navy);
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.roi-list {
  list-style: none;
  margin: 10px 0;
}
.roi-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.4;
}
.roi-list li:last-child { border-bottom: none; }
.roi-list li::before {
  content: '✓';
  width: 16px;
  height: 16px;
  background: rgba(0,212,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--cyan);
  flex-shrink: 0;
  margin-top: 1px;
}
.roi-list.negative li::before {
  content: '—';
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
}
.roi-conclusion {
  font-style: italic;
  color: var(--text-muted);
  font-size: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* Comparison table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0;
}
.comparison-table th {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 10px 16px;
  text-align: left;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.comparison-table th:first-child { color: var(--text-light); }
.comparison-table th:nth-child(2) { color: var(--text-muted); }
.comparison-table th:nth-child(3) { color: var(--cyan); }
.comparison-table td {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.comparison-table td:first-child {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  color: var(--white);
  font-size: 13px;
}
.comparison-table td.positive { color: var(--cyan); font-weight: 600; }
.comparison-table tr:hover td { background: rgba(255,255,255,0.02); }

.roi-footnote {
  margin-top: 32px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.03);
  border-left: 3px solid rgba(0,212,255,0.3);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
}

/* ============================================================
   SECTION SOLUTION (#solution)
   ============================================================ */
#solution {
  background-image: url('https://images.unsplash.com/photo-1553877522-43269d4ea984?w=1920&q=80');
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.solution-grid .glass-card:last-child {
  grid-column: 1 / -1;
}
@media (min-width: 1024px) {
  .solution-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .solution-grid .glass-card:nth-child(4) {
    grid-column: 1;
  }
  .solution-grid .glass-card:nth-child(5) {
    grid-column: 2 / 4;
  }
  .solution-grid .glass-card:last-child {
    grid-column: auto;
  }
}

/* ============================================================
   SECTION PROCESSUS (#processus)
   ============================================================ */
#processus {
  background: var(--navy-mid);
  overflow: hidden;
}

.timeline-wrapper {
  position: relative;
  padding: 40px 0;
}
.timeline-line {
  position: absolute;
  top: 80px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--violet) 100%);
  opacity: 0.3;
}
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}
.timeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.timeline-num {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 24px;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(0,212,255,0.3);
  position: relative;
  z-index: 2;
}
.timeline-step h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.4;
}
.timeline-step p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}

.timeline-badge {
  display: block;
  margin: 48px auto 0;
  max-width: 700px;
  background: rgba(0,212,255,0.06);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: var(--radius-md);
  padding: 20px 32px;
  text-align: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  line-height: 1.6;
}
.timeline-badge strong { color: var(--cyan); }

/* ============================================================
   SECTION RÉSULTATS (#resultats)
   ============================================================ */
#resultats {
  background-image: url('https://images.unsplash.com/photo-1600880292203-757bb62b4baf?w=1920&q=80');
}

/* ============================================================
   SECTION EXPERTISES & FORMATION (#expertises)
   ============================================================ */
#expertises {
  background: var(--navy);
}

.expertises-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* Carte partagée — icône décorative de fond */
.expertises-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Grande icône décorative en arrière-plan */
.expertises-icon-wrap {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 96px;
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,212,255,0.05);
  border-radius: 50%;
  pointer-events: none;
}
.expertises-icon-wrap i {
  font-size: 42px;
  color: rgba(0,212,255,0.12);
}

/* Carte Formation : accent violet subtil */
.expertises-card--formation {
  border-color: rgba(124,58,237,0.25);
}
.expertises-card--formation::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.06) 0%, transparent 60%);
  pointer-events: none;
  border-radius: var(--radius-lg);
}

.expertises-body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.expertises-body p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.65;
}

.expertises-body strong {
  color: var(--white);
  font-weight: 600;
}

/* Tags domaines */
.expertises-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.exp-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.22);
  border-radius: 20px;
  padding: 5px 12px;
  transition: var(--transition);
}
.exp-tag:hover {
  background: rgba(0,212,255,0.14);
  border-color: rgba(0,212,255,0.4);
}

/* Carte formation : tags violet */
.expertises-card--formation .exp-tag {
  color: var(--violet-light);
  background: rgba(124,58,237,0.08);
  border-color: rgba(124,58,237,0.25);
}
.expertises-card--formation .exp-tag:hover {
  background: rgba(124,58,237,0.15);
  border-color: rgba(124,58,237,0.45);
}

/* Bouton IMPULSE Academy */
.btn-impulse {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-top: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-decoration: none;
  color: var(--white);
  background: linear-gradient(135deg, rgba(124,58,237,0.55) 0%, rgba(124,58,237,0.30) 100%);
  border: 1px solid rgba(124,58,237,0.45);
  padding: 11px 22px;
  border-radius: 50px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.btn-impulse i {
  font-size: 11px;
  transition: transform 0.25s ease;
}
.btn-impulse:hover {
  background: linear-gradient(135deg, rgba(124,58,237,0.75) 0%, rgba(157,98,245,0.55) 100%);
  border-color: rgba(157,98,245,0.65);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124,58,237,0.35);
}
.btn-impulse:hover i {
  transform: translate(2px, -2px);
}

/* Responsive */
@media (max-width: 768px) {
  .expertises-grid {
    grid-template-columns: 1fr;
  }
  .expertises-icon-wrap { display: none; }
}

/* ============================================================
   SECTION FAQ (#faq)
   ============================================================ */
#faq {
  background: var(--navy-mid);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}
.faq-item.open {
  border-color: rgba(0,212,255,0.25);
  background: rgba(0,212,255,0.04);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}
.faq-question span {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
}
.faq-icon {
  width: 32px;
  height: 32px;
  background: rgba(0,212,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  color: var(--cyan);
  transition: var(--transition);
  font-weight: 300;
}
.faq-item.open .faq-icon {
  background: rgba(0,212,255,0.2);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.75;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
}
.faq-item.open .faq-answer { max-height: 400px; }

/* ============================================================
   SECTION CONTACT (#contact)
   ============================================================ */
#contact {
  background-image: url('https://images.unsplash.com/photo-1521791136064-7986c2920216?w=1920&q=80');
  text-align: center;
}
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
}
.contact-inner h2 { margin-bottom: 16px; }
.contact-inner .contact-sub {
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--cyan);
  margin-bottom: 24px;
}
.contact-inner p { margin-bottom: 40px; }
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 32px;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}
.contact-email:hover { color: var(--cyan); }

/* ============================================================
   FOOTER — une ligne + bottom bar
   ============================================================ */
footer {
  background: #060a14;
  border-top: 1px solid rgba(255,255,255,0.07);
}

/* Ligne principale */
.footer-row {
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-row-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.footer-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.footer-logo-link img {
  width: auto;
  height: 34px;
  opacity: 1;
  filter: brightness(1.12) drop-shadow(0 0 6px rgba(0,212,255,0.35));
  transition: filter 0.4s ease, transform 0.4s ease;
}
.footer-logo-link:hover img {
  transform: scale(1.04);
  filter: brightness(1.4) drop-shadow(0 0 12px rgba(0,212,255,0.7)) drop-shadow(0 0 30px rgba(0,212,255,0.35));
}


/* Nav horizontale */
.footer-nav-inline {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
  justify-content: center;
  flex: 1;
}
.footer-nav-inline a {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.38);
  text-decoration: none;
  padding: 5px 9px;
  border-radius: 4px;
  transition: color 0.25s ease, background 0.25s ease;
}
.footer-nav-inline a:hover {
  color: rgba(255,255,255,0.80);
  background: rgba(255,255,255,0.05);
}

/* Contact + CTA */
.footer-contact-inline {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.footer-email {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.38);
  text-decoration: none;
  transition: color 0.25s ease;
}
.footer-email i { color: var(--cyan); font-size: 10px; }
.footer-email:hover { color: rgba(255,255,255,0.75); }

/* Bouton footer */
.footer-btn {
  font-size: 10px !important;
  font-weight: 700 !important;
  letter-spacing: 0.7px !important;
  text-transform: uppercase !important;
  padding: 6px 14px !important;
  border-radius: 50px !important;
  box-shadow: 0 2px 10px rgba(0,212,255,0.18) !important;
  gap: 5px !important;
}
.footer-btn i { font-size: 9px; }

/* Bottom bar */
.footer-bottom-bar {
  padding: 10px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer-bottom-bar p {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  color: rgba(255,255,255,0.22);
  letter-spacing: 0.3px;
}
.footer-legal {
  display: flex;
  gap: 18px;
}
.footer-legal a {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  color: rgba(255,255,255,0.22);
  text-decoration: none;
  transition: color 0.25s ease;
}
.footer-legal a:hover { color: rgba(255,255,255,0.50); }

.footer-gradient-bar {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 30%, var(--violet) 70%, transparent 100%);
}

/* ============================================================
   FADE-IN ANIMATIONS (Intersection Observer)
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   RESPONSIVE – 1200px
   ============================================================ */
@media (max-width: 1200px) {
  .timeline-grid { grid-template-columns: repeat(3, 1fr); }
  .timeline-line { display: none; }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-logo { grid-column: 1 / -1; }
}

/* ============================================================
   RESPONSIVE – 768px
   ============================================================ */
@media (max-width: 768px) {
  section { padding: 70px 0; }
  .container { padding: 0 20px; }
  .nav-container { padding: 0 20px; }
  .nav-menu, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .hero-content { padding: 100px 20px 60px; }

  .grid-2, .roi-grid, .solution-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .timeline-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-grid .glass-card:last-child { grid-column: auto; }
  .solution-grid .glass-card:nth-child(4) { grid-column: auto; }
  .solution-grid .glass-card:nth-child(5) { grid-column: auto; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .comparison-table { font-size: 13px; }
  .comparison-table th, .comparison-table td { padding: 12px 16px; }

  .iso-badges { gap: 8px; }
  .iso-badge { padding: 8px 12px; }

  /* boutons hero : rester côte à côte jusqu'à 400px */

  .roi-price { font-size: 28px; }
}

@media (max-width: 480px) {
  .timeline-grid { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: 1fr 1fr; }
  .nav-logo img { height: 34px; }
}

/* Très petits écrans : boutons hero en colonne */
@media (max-width: 400px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
}