/* ============================================================
   WATER HOME - Feuille de style globale
   Design System: Flat Design / Trust & Authority + Conversion
   ============================================================ */

/* --- VARIABLES RACINES --- */
:root {
  /* Palette de couleurs - Pureté, Santé, Technologie */
  --color-primary: #1E40AF;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3B82F6;
  --color-on-secondary: #FFFFFF;
  --color-accent: #C2410C;
  --color-on-accent: #FFFFFF;
  --color-background: #EFF6FF;
  --color-foreground: #1E3A8A;
  --color-card: #FFFFFF;
  --color-card-foreground: #1E3A8A;
  --color-muted: #E9EEF6;
  --color-muted-foreground: #475569;
  --color-border: #BFDBFE;
  --color-destructive: #DC2626;
  --color-on-destructive: #FFFFFF;
  --color-ring: #1E40AF;

  /* Typographie */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  /* Espacements */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

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

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Ombres subtils */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Largeurs */
  --container-max: 1200px;
  --header-height: 4rem;
}

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

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Classes d'animation */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}


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

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

body {
  font-family: var(--font-body);
  color: var(--color-foreground);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--color-muted-foreground);
}

/* --- UTILITAIRES --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
}

/* --- BOUTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-align: center;
  min-height: 44px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
}

.btn-primary:hover {
  background-color: #9A3412;
  color: var(--color-on-accent);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-secondary:hover {
  background-color: #1E3A8A;
  color: var(--color-on-primary);
  transform: translateY(-1px);
}

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

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

/* --- HEADER --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: .01em;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
}

.logo-img {
  width: 38px;
  height: 44px;
  display: block;
  transition: transform var(--transition-base, .3s) ease;
}

.logo:hover .logo-img { transform: translateY(-2px) rotate(-3deg); }
.logo-water { color: #033D8F; }
.logo-home { color: #0A9AEC; }

/* Pied de page : l'icône sur une pastille claire, lisible sur fond bleu nuit */
.logo--pied .logo-pastille {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .18);
}
.logo--pied .logo-img { width: 32px; height: 37px; }
.logo--pied .logo-water { color: #fff; }
.logo--pied .logo-home { color: #4FB8F5; }

@media (max-width: 400px) {
  .logo { font-size: 1.25rem; gap: 8px; }
  .logo-img { width: 33px; height: 38px; }
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-foreground);
  padding: var(--space-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  margin-left: var(--space-md);
}

/* Menu burger (mobile) */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-foreground);
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- HERO --- */
.hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
  background-color: var(--color-card);
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  color: var(--color-foreground);
}

.hero-content h1 span {
  color: var(--color-secondary);
}

.hero-content p {
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

/* --- HERO SLIDER --- */
.hero-slider {
  position: relative;
  padding-top: var(--header-height);
  background-color: var(--color-card);
  overflow: hidden;
}

.slides {
  overflow: hidden;
}

.slide {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4xl) var(--space-md);
  animation: fadeInUp 0.5s ease;
}

.slide.active {
  display: grid;
}

.slide--text-left .slide-text { order: 1; }
.slide--text-left .slide-media { order: 2; }
.slide--text-right .slide-text { order: 2; }
.slide--text-right .slide-media { order: 1; }

.slide-text h1,
.slide-text h2 {
  font-size: 2.75rem;
  margin-bottom: var(--space-lg);
}

.slide-text h1 span,
.slide-text h2 span {
  color: var(--color-secondary);
}

.slide-text p {
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.slide-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  background-color: var(--color-muted);
}

/* Cadrage selon la position de la personne dans chaque photo */
.slide--text-left .slide-media img { object-position: right center; }
.slide--text-right .slide-media img { object-position: left center; }

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  border-radius: 50%;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.slider-arrow:hover {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.slider-prev { left: var(--space-md); }
.slider-next { right: var(--space-md); }

.slider-dots {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  z-index: 5;
}

.slider-dot {
  position: relative;
  width: 12px;
  height: 12px;
  min-width: 12px;
  min-height: 12px;
  border-radius: 50%;
  background-color: var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.slider-dot::after {
  content: '';
  position: absolute;
  inset: -16px;
}

.slider-dot.active {
  background-color: var(--color-primary);
  transform: scale(1.25);
}

/* --- PREUVE / STATISTIQUES --- */
.stats {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-2xl) 0;
}

.stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.9375rem;
  opacity: 0.9;
}

/* --- ENGAGEMENT : EAU / FAMILLE / MAISON --- */
.engagement {
  background: linear-gradient(180deg, var(--color-card) 0%, var(--color-background) 100%);
  padding: var(--space-4xl) 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background-color: var(--color-muted);
  border: 1px solid var(--color-border);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.engagement .section-header h2 span {
  color: var(--color-secondary);
}

.engagement-lead {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.0625rem;
}

.engagement-duel {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-lg);
  align-items: stretch;
  margin: var(--space-xl) 0 var(--space-2xl);
}

.engagement-duel-card {
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  background-color: var(--color-card);
}

.engagement-duel-card h3 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.engagement-duel-card ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.engagement-duel-card li {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  font-size: 0.9375rem;
  color: var(--color-muted-foreground);
}

.engagement-duel-card--pain {
  background-color: #FEF2F2;
  border-style: dashed;
}

.engagement-duel-card--pain h3 span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-destructive);
  background-color: rgba(220, 38, 38, 0.1);
  border-radius: 50%;
}

.engagement-duel-card--gain {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-md);
}

.engagement-duel-card--gain h3 span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 50%;
}

.engagement-duel-card--gain li {
  color: var(--color-foreground);
  font-weight: 500;
}

.engagement-vs {
  align-self: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: #fff;
  background-color: var(--color-accent);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}

.engagement-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
}

.engagement-trust li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-sm) var(--space-lg);
}

.engagement-trust li::before {
  content: '✓';
  font-weight: 700;
  color: var(--color-secondary);
}

.engagement-cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.engagement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: stretch;
}

.engagement-item {
  position: relative;
  background-color: var(--color-card);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.engagement-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.engagement-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-secondary);
}

.engagement-item:hover::before {
  opacity: 1;
}

.engagement-item--featured {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-md);
}

.engagement-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.engagement-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--shadow-md);
}

.engagement-icon svg {
  width: 28px;
  height: 28px;
}

.engagement-step {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  opacity: 0.7;
}



.engagement-item h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.375rem;
}

.engagement-desc {
  margin-bottom: var(--space-lg);
  font-size: 0.9375rem;
  color: var(--color-muted-foreground);
}

.engagement-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.engagement-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-foreground);
}

.engagement-list li::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-muted);
  border-radius: 50%;
  margin-top: 1px;
}

.financement {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  background: linear-gradient(135deg, var(--color-primary) 0%, #1E3A8A 100%);
  color: #fff;
  padding: var(--space-xl) var(--space-2xl);
  border-radius: var(--radius-xl);
  margin-top: var(--space-2xl);
  box-shadow: var(--shadow-lg);
}

.financement-icon {
  min-width: 56px;
  width: 56px;
  height: 56px;
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.financement-icon svg {
  width: 28px;
  height: 28px;
}

.financement-text {
  flex: 1;
}

.financement-text h3 {
  color: #fff;
  margin-bottom: var(--space-xs);
}

.financement-text p {
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: var(--space-xs);
  font-size: 1rem;
}

.financement-text small {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.75);
}

.btn-light {
  background-color: #fff;
  color: var(--color-primary);
  white-space: nowrap;
}

.btn-light:hover {
  background-color: var(--color-muted);
  color: var(--color-primary);
  transform: translateY(-1px);
}

/* --- SOLUTIONS --- */
.solutions {
  background-color: var(--color-background);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.solution-card {
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-secondary);
}

.solution-icon {
  width: 56px;
  height: 56px;
  background-color: var(--color-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.solution-icon svg {
  width: 28px;
  height: 28px;
}

.solution-card h3 {
  margin-bottom: var(--space-sm);
}

.solution-card p {
  margin-bottom: var(--space-lg);
}

.solution-link {
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: gap var(--transition-fast);
}

.solution-link:hover {
  gap: var(--space-sm);
  color: var(--color-secondary);
}

/* --- POURQUOI NOUS --- */
.why-us {
  background-color: var(--color-card);
}

.why-us .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.why-us-content h2 {
  margin-bottom: var(--space-lg);
}

.why-us-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.why-us-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.why-us-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background-color: var(--color-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.why-us-icon svg {
  width: 24px;
  height: 24px;
}

.why-us-item h4 {
  margin-bottom: var(--space-xs);
}

.why-us-item p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.why-us-image img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

/* --- CTA SECTION --- */
.cta-section {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-4xl) 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.cta-section .btn-primary {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
}

.cta-section .btn-primary:hover {
  background-color: #9A3412;
}

/* --- FOOTER --- */
.footer {
  background-color: var(--color-foreground);
  color: var(--color-on-primary);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer .container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand .logo {
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  max-width: 300px;
}

.footer h4 {
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-on-primary);
}

.footer-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* --- PAGE HERO (pages internes) --- */
.page-hero {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
  background-color: var(--color-card);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  margin-bottom: var(--space-md);
}

.page-hero p {
  max-width: 600px;
  margin: 0 auto;
}

/* --- OSMOSEURS : HERO PREMIUM --- */
.osmo-hero {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-4xl);
  background: linear-gradient(180deg, var(--color-card) 0%, var(--color-background) 100%);
  overflow: hidden;
}

.osmo-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-3xl);
  align-items: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  margin-bottom: var(--space-md);
}

.breadcrumb a { color: var(--color-primary); font-weight: 500; }

.osmo-hero-text h1 {
  font-size: 2.75rem;
  margin-bottom: var(--space-lg);
}

.osmo-hero-text h1 span { color: var(--color-secondary); }

.osmo-lead {
  font-size: 1.125rem;
  max-width: 560px;
  margin-bottom: var(--space-xl);
}

.osmo-proof {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.osmo-proof li { display: flex; flex-direction: column; gap: 2px; }

.osmo-proof strong {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary);
}

.osmo-proof span { font-size: 0.875rem; color: var(--color-muted-foreground); }

.osmo-hero-media { position: relative; }

.osmo-hero-media img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: left center;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  background-color: var(--color-muted);
}

.osmo-float-card {
  position: absolute;
  left: var(--space-lg);
  bottom: var(--space-lg);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
}

.osmo-float-card strong {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary);
}

.osmo-float-card span { font-size: 0.875rem; color: var(--color-muted-foreground); }

/* --- AVANT / APRÈS --- */
.avant-apres { background-color: var(--color-card); }

.avant-apres-frame {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.avant-apres-frame img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.avant-apres-frame:hover img { transform: scale(1.02); }

.avant-apres-badge {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  border: 3px solid #fff;
}

.avant-apres-badge i {
  font-style: normal;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: #fff;
  font-size: 1rem;
}

.avant-apres-badge--avant { left: 25%; background-color: var(--color-destructive); color: #fff; }
.avant-apres-badge--avant i { background-color: rgba(255, 255, 255, 0.25); }

.avant-apres-badge--apres { left: 75%; background-color: #16A34A; color: #fff; }
.avant-apres-badge--apres i { background-color: rgba(255, 255, 255, 0.25); }

.avant-apres-gains {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  text-align: center;
}

.avant-apres-gains li { display: flex; flex-direction: column; gap: 2px; }

.avant-apres-gains strong {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  color: var(--color-primary);
}

.avant-apres-gains span { font-size: 0.875rem; color: var(--color-muted-foreground); }

.avant-apres .engagement-cta { margin-top: var(--space-xl); }

/* --- OSMOSEURS : BÉNÉFICES --- */
.osmo-benefs { background-color: var(--color-card); }

.osmo-benefs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.osmo-benef-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.osmo-benef-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-secondary);
}

.osmo-benef-card h3 { margin: var(--space-md) 0 var(--space-sm); }
.osmo-benef-card p { margin-bottom: 0; font-size: 0.9375rem; }

/* --- OSMOSEURS : ÉTAPES --- */
.osmo-steps { background-color: var(--color-background); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  list-style: none;
  counter-reset: steps;
}

.step-card {
  position: relative;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  overflow: hidden;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  background-color: var(--color-primary);
  border-radius: 50%;
  margin-bottom: var(--space-md);
}

.step-card h3 { margin-bottom: var(--space-sm); }
.step-card p { margin-bottom: 0; font-size: 0.9375rem; }

.osmo-media-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.osmo-media-row img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  background-color: var(--color-muted);
}

/* --- OSMOSEURS : MODÈLES --- */
.osmo-models { background-color: var(--color-muted); }

.product-media { position: relative; }

.product-tag {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.product-tag--hot {
  color: var(--color-on-accent);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.product-card--featured {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.product-price {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.product-cta { width: 100%; }

/* --- OSMOSEURS : FAQ --- */
.osmo-faq { background-color: var(--color-card); }

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.faq-item {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.faq-item[open] {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 44px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-secondary);
  flex-shrink: 0;
}

.faq-item[open] summary::after { content: '−'; }

.faq-item p { margin: var(--space-md) 0 0; }

.eyebrow--light {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost-light {
  background-color: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-ghost-light:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-color: #fff;
}

/* --- GRILLE PRODUITS --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.product-card {
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background-color: var(--color-muted);
}

.product-content {
  padding: var(--space-lg);
}

.product-content h3 {
  margin-bottom: var(--space-sm);
}

.product-content p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.product-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}

.product-features li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 600;
}

/* --- FORMULAIRE --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-form {
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--color-foreground);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  color: var(--color-foreground);
  transition: border-color var(--transition-fast);
  min-height: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-ring);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background-color: var(--color-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.contact-info-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-item h4 {
  margin-bottom: var(--space-xs);
}

.contact-info-item p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* --- ACCESSIBILITÉ --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}

/* --- MICRO-INTERACTIONS SUPPLEMENTAIRES --- */
.solution-card,
.product-card {
  will-change: transform;
}

.btn {
  position: relative;
  overflow: hidden;
}

.stat-number {
  display: inline-block;
}

/* --- SKIP LINK --- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: 10000;
  background-color: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

/* --- FOCUS STATES AMÉLIORÉS --- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-ring);
  outline-offset: 2px;
}

/* --- LOADING STATE --- */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image {
    order: -1;
  }

  .slide {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-3xl) var(--space-md) var(--space-4xl);
  }

  .slide--text-left .slide-text,
  .slide--text-right .slide-text { order: 2; }
  .slide--text-left .slide-media,
  .slide--text-right .slide-media { order: 1; }

  .slide-text p {
    margin-left: auto;
    margin-right: auto;
  }

  .slide-media img {
    height: 300px;
  }

  .solutions-grid,
  .products-grid,
  .engagement-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .engagement-item--featured {
    grid-column: span 2;
  }

  .financement {
    flex-direction: column;
    text-align: center;
    align-items: stretch;
  }

  .financement-icon {
    margin: 0 auto;
  }

  .stats .container {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-us .container,
  .osmo-hero-grid {
    grid-template-columns: 1fr;
  }

  .osmo-hero-media img { height: 340px; }

  .osmo-benefs-grid,
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .osmo-media-row { grid-template-columns: 1fr; }

  .why-us-image {
    order: -1;
  }

  .footer .container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-card);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-cta {
    margin-left: 0;
    width: 100%;
  }

  .nav-link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .menu-toggle {
    display: flex;
  }

  .solutions-grid,
  .products-grid,
  .engagement-grid {
    grid-template-columns: 1fr;
  }

  .engagement-item--featured {
    grid-column: span 1;
  }

  .engagement-duel {
    grid-template-columns: 1fr;
  }

  .engagement-vs {
    margin: 0 auto;
  }

  .engagement-trust {
    justify-content: flex-start;
  }

  .financement {
    padding: var(--space-lg);
  }

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

  .footer .container {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 2.25rem;
  }

  .osmo-hero-text h1 { font-size: 2rem; }
  .osmo-benefs-grid,
  .steps-grid { grid-template-columns: 1fr; }
  .osmo-proof { gap: var(--space-lg); }
  .osmo-float-card { left: var(--space-md); bottom: var(--space-md); }
  .avant-apres-badge {
    font-size: 0.8125rem;
    padding: var(--space-xs) var(--space-md);
    border-width: 2px;
  }
  .avant-apres-badge i { width: 22px; height: 22px; font-size: 0.8125rem; }
}

/* --- CTA HOVER EFFECT --- */
.btn-primary {
  position: relative;
  z-index: 1;
  transition: color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent), #9A3412);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  color: var(--color-on-accent);
}

.btn-primary:hover::before {
  opacity: 1;
}

/* ============================================================
   --- CALCULATEUR PACK DUO ---
   ============================================================ */
.calc { background: var(--color-background); }
.calc-board {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.calc-form { padding: var(--space-2xl); }
.calc-form fieldset { border: 0; padding: 0; margin: 0 0 var(--space-xl); }
.calc-form fieldset:last-child { margin-bottom: 0; }
.calc-form legend {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-foreground);
  margin-bottom: var(--space-sm);
}
.calc-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}
.calc-tag svg { width: 18px; height: 18px; }
.calc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-muted);
  font-size: 0.925rem;
  color: var(--color-muted-foreground);
  cursor: pointer;
}
.calc-input {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.calc-input:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
}
.calc-input input {
  width: 7.5rem;
  border: 0;
  background: transparent;
  padding: 0.65rem 0.25rem 0.65rem 0.75rem;
  font: 700 1rem var(--font-body);
  color: var(--color-foreground);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.calc-input input:focus { outline: none; }
.calc-input em {
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-muted-foreground);
  padding: 0 0.75rem 0 0.5rem;
}
.calc-summary {
  background: #0F1E3D;
  color: #CBD5E1;
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.calc-summary-label { font-size: 0.925rem; margin: 0; color: #CBD5E1; }
.calc-big {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  line-height: 1.1;
  color: #7DD3FC;
  margin: var(--space-sm) 0 0;
  font-variant-numeric: tabular-nums;
}
.calc-summary-sub { margin: 0 0 var(--space-lg); color: #fff; }
.calc-summary dl { margin: 0; }
.calc-summary dl > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
}
.calc-summary dt { font-size: 0.9rem; }
.calc-summary dd {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.calc-summary .calc-sep { border-top: 1px solid rgba(255, 255, 255, 0.12); margin-top: var(--space-sm); padding-top: var(--space-md); }
.calc-gain { color: #6EE7B7 !important; font-size: 1.1rem; }
.calc-gain.calc-loss { color: #FCA5A5 !important; }
.calc-year { font-size: 1.35rem; }
.calc-fine { font-size: 0.78rem; line-height: 1.6; margin: var(--space-lg) 0; color: #94A3B8; }
.calc-summary .btn { align-self: flex-start; }

.calc-chart-card {
  margin-top: var(--space-xl);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}
.calc-chart-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.calc-chart-head h3 { margin: 0 0 2px; font-size: 1.15rem; }
.calc-chart-head span { font-size: 0.8rem; color: var(--color-muted-foreground); }

/* Durée : 1 / 2 / 3 ans */
.calc-horizon { display: inline-flex; background: var(--color-muted); border-radius: var(--radius-full); padding: 4px; gap: 2px; }
.calc-horizon button {
  font: 600 0.85rem var(--font-body); color: var(--color-muted-foreground);
  background: transparent; border: 0; border-radius: var(--radius-full);
  padding: 0.4rem 0.95rem; cursor: pointer; transition: background .2s, color .2s;
}
.calc-horizon button:hover { color: var(--color-foreground); }
.calc-horizon button[aria-pressed="true"] { background: var(--color-card); color: var(--color-primary); box-shadow: 0 1px 4px rgba(30, 58, 138, .15); }
.calc-horizon button:focus-visible { outline: 2px solid var(--color-ring); outline-offset: 2px; }

/* Chiffre clé */
.calc-hero { margin: 0 0 var(--space-md); }
.calc-hero p { margin: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 .6rem; color: var(--color-muted-foreground); }
.calc-hero strong { font: 700 clamp(1.8rem, 4.5vw, 2.6rem)/1.1 var(--font-heading, inherit); color: var(--color-foreground); font-variant-numeric: tabular-nums; }
.calc-hero small { display: block; margin-top: 4px; color: var(--color-muted-foreground); font-size: .85rem; }
.calc-hero.is-loss strong { color: var(--color-accent); }

/* Graphe */
.calc-chart { position: relative; touch-action: pan-y; }
.calc-chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.calc-chart text { font: 12px var(--font-body); fill: var(--color-muted-foreground); font-variant-numeric: tabular-nums; }
.calc-grid { stroke: var(--color-muted); stroke-width: 1; }
.calc-tick { stroke: var(--color-border); stroke-width: 1; }
.calc-line { stroke-width: 2.5; stroke-linecap: round; }
.calc-line.is-current { stroke: var(--color-accent); }
.calc-line.is-duo { stroke: #2563EB; }
.calc-area.is-gain { fill: #2563EB; fill-opacity: .10; }
.calc-area.is-loss { fill: var(--color-accent); fill-opacity: .10; }
.calc-point { stroke: var(--color-card); stroke-width: 2; }
.calc-point.is-current { fill: var(--color-accent); }
.calc-point.is-duo { fill: #2563EB; }
.calc-ring { r: 6; }
.calc-halo { fill: #2563EB; transform-box: fill-box; transform-origin: center; animation: calc-halo 2.2s ease-out infinite; }
@keyframes calc-halo { from { opacity: .45; transform: scale(1); } to { opacity: 0; transform: scale(3.2); } }
.calc-brace { stroke: var(--color-foreground); stroke-width: 1.5; stroke-dasharray: 3 3; }
.calc-chart .calc-brace-lbl { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; fill: var(--color-muted-foreground); }
.calc-chart .calc-brace-val { font-size: 14px; font-weight: 700; fill: var(--color-foreground); }
.calc-chart .calc-end { font-size: 12px; font-weight: 600; fill: var(--color-foreground); }
.calc-cross { stroke: var(--color-foreground); stroke-width: 1; stroke-dasharray: 2 3; opacity: .5; }
.calc-hit { cursor: crosshair; }

/* Infobulle */
.calc-tip {
  position: absolute; top: 0; z-index: 2; pointer-events: none;
  background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md, 10px);
  box-shadow: 0 8px 24px rgba(30, 58, 138, .14); padding: .55rem .75rem; min-width: 190px;
  font-size: .8rem; color: var(--color-muted-foreground);
}
.calc-tip strong { display: block; color: var(--color-foreground); margin-bottom: .25rem; }
.calc-tip span { display: flex; align-items: center; gap: .4rem; }
.calc-tip b { margin-left: auto; padding-left: .8rem; color: var(--color-foreground); font-variant-numeric: tabular-nums; }
.calc-tip-gain { border-top: 1px solid var(--color-border); margin-top: .3rem; padding-top: .3rem; font-weight: 600; }
.calc-tip-gain b { color: #1D4ED8; }
.calc-tip-gain.is-loss b { color: var(--color-accent); }

.calc-legend {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-xl);
  font-size: 0.85rem;
  color: var(--color-muted-foreground);
}
.calc-legend li { display: flex; align-items: center; gap: var(--space-sm); }
.calc-legend-hint { margin-left: auto; font-size: .78rem; font-style: italic; }
.calc-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.calc-dot--current { background: var(--color-accent); }
.calc-dot--duo { background: #2563EB; }
@media (prefers-reduced-motion: reduce) { .calc-halo { animation: none; display: none; } }
.calc-note { margin-top: var(--space-lg); font-size: 0.8rem; color: var(--color-muted-foreground); }

@media (max-width: 900px) {
  .calc-board { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .calc-form, .calc-summary { padding: var(--space-lg); }
  .calc-row { flex-direction: column; align-items: stretch; gap: var(--space-sm); }
  .calc-input input { width: 100%; }
  .calc-chart-card { padding: var(--space-lg); }
}

/* ============================================================
   --- DIAGNOSTIC QUALITÉ DE L'EAU ---
   ============================================================ */
.diag {
  max-width: 760px;
  margin: 0 auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  scroll-margin-top: calc(var(--header-height) + var(--space-lg));
}
.diag [tabindex="-1"]:focus { outline: none; }
.diag-progress { margin-bottom: var(--space-xl); }
.diag-progress-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-xs) var(--space-md);
  font-size: 0.85rem;
  color: var(--color-muted-foreground);
  margin-bottom: var(--space-sm);
}
.diag-progress-hint { font-size: 0.78rem; }
.diag-progress-bar { height: 6px; background: var(--color-muted); border-radius: var(--radius-full); overflow: hidden; }
.diag-progress-bar span { display: block; height: 100%; width: 20%; background: var(--color-primary); border-radius: inherit; transition: width var(--transition-slow); }

.diag-step { display: none; border: 0; padding: 0; margin: 0; }
.diag-step.is-active { display: block; animation: fadeInUp 0.35s ease both; }
.diag-step legend, .diag-group legend {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-foreground);
  padding: 0;
}
.diag-step legend { font-size: clamp(1.25rem, 3vw, 1.6rem); line-height: 1.3; margin-bottom: var(--space-lg); }
.diag-help { margin: calc(-1 * var(--space-md)) 0 var(--space-md); font-size: 0.875rem; color: var(--color-muted-foreground); }

.diag-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.diag-options--compact { grid-template-columns: 1fr; }
.diag-option { position: relative; display: block; cursor: pointer; }
.diag-option input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.diag-option span {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 3.25rem;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-weight: 500;
  color: var(--color-foreground);
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}
.diag-option span::before {
  content: "";
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  transition: all var(--transition-fast);
}
.diag-option input[type="checkbox"] + span::before { border-radius: 5px; }
.diag-option:hover span { border-color: var(--color-secondary); }
.diag-option input:checked + span { border-color: var(--color-primary); background: var(--color-background); }
.diag-option input:checked + span::before {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: inset 0 0 0 3px var(--color-card);
}
.diag-option input:focus-visible + span { box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.25); }
.diag-option--exclusive { grid-column: 1 / -1; }

.diag-error { color: var(--color-destructive); font-size: 0.875rem; font-weight: 600; margin: var(--space-md) 0 0; }
.diag-nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-md); margin-top: var(--space-xl); }
.diag-nav .btn[disabled] { opacity: 0.4; pointer-events: none; }

/* Résultat */
.diag-score { display: flex; align-items: center; gap: var(--space-xl); --tier: var(--color-primary); }
.diag-score[data-tier="ok"] { --tier: #059669; }
.diag-score[data-tier="check"] { --tier: #CA8A04; }
.diag-score[data-tier="watch"] { --tier: #EA580C; }
.diag-score[data-tier="alert"] { --tier: var(--color-destructive); }
.diag-score-ring { position: relative; width: 150px; height: 150px; flex-shrink: 0; }
.diag-score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.diag-ring-track { fill: none; stroke: var(--color-muted); stroke-width: 10; }
.diag-ring-value { fill: none; stroke: var(--tier); stroke-width: 10; stroke-linecap: round; }
.diag-score-num { position: absolute; inset: 0; display: flex; align-items: baseline; justify-content: center; padding-top: 52px; }
.diag-score-num strong { font-family: var(--font-heading); font-size: 2.5rem; line-height: 1; color: var(--color-foreground); }
.diag-score-num small { font-size: 0.9rem; color: var(--color-muted-foreground); margin-left: 2px; }
.diag-score-text h2 { margin: var(--space-xs) 0 var(--space-sm); color: var(--tier); font-size: clamp(1.35rem, 3vw, 1.75rem); }
.diag-score-text p { margin: 0 0 var(--space-sm); }
.diag-disclaimer {
  font-size: 0.8rem;
  color: var(--color-muted-foreground);
  border-left: 3px solid var(--color-border);
  padding-left: var(--space-md);
}

.diag-bilan {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--teinte-pale, var(--color-background));
  border: 1px solid var(--teinte-bord, var(--color-border));
}
.diag-bilan h3 { margin: 0 0 var(--space-xs); font-size: 1.15rem; }
.diag-bilan-intro { margin: 0 0 var(--space-md); font-size: 0.9rem; color: var(--color-muted-foreground); }
.diag-bilan-choix { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.diag-bilan-onglet {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm);
  min-height: 48px; padding: 0.6rem 1rem;
  font-family: var(--font-heading); font-weight: 600; font-size: 0.95rem;
  color: var(--color-foreground); background: var(--color-card);
  border: 1.5px solid var(--color-border); border-radius: var(--radius-lg);
  cursor: pointer; transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}
.diag-bilan-onglet svg { width: 20px; height: 20px; flex-shrink: 0; }
.diag-bilan-onglet:hover { border-color: var(--teinte, var(--color-secondary)); }
.diag-bilan-onglet[aria-expanded="true"] { border-color: var(--teinte-fonce, var(--color-primary)); color: var(--teinte-fonce, var(--color-primary)); }
.diag-bilan-onglet--wa svg { color: #25D366; }
.diag-bilan-onglet:focus-visible { outline: 3px solid var(--color-ring); outline-offset: 2px; }
.diag-bilan-form { margin-top: var(--space-md); animation: fadeInUp 0.3s ease both; }
.diag-bilan-form[hidden] { display: none; }
.diag-bilan-form .form-group { margin-bottom: var(--space-sm); }
.diag-bilan-ligne { display: flex; gap: var(--space-sm); }
.diag-bilan-ligne input { flex: 1 1 auto; min-width: 0; }
.diag-bilan-ligne .btn { flex-shrink: 0; }
.diag-bilan-note { margin: 0; font-size: 0.8rem; color: var(--color-muted-foreground); }
.diag-bilan-statut { margin: var(--space-sm) 0 0; font-size: 0.875rem; font-weight: 600; }
.diag-bilan-statut.is-ok { color: #047857; }
.diag-bilan-statut.is-erreur { color: var(--color-destructive); }

.diag-rdv { border-top: 1px solid var(--color-border); padding-top: var(--space-xl); }
.diag-rdv h3 { margin: 0 0 var(--space-xs); }
.diag-rdv-intro { margin: 0 0 var(--space-lg); font-size: 0.875rem; color: var(--color-muted-foreground); }
.diag-rdv-etape[hidden], .diag-rdv [data-rdv-envoi][hidden] { display: none; }
.diag-rdv-etape:not([hidden]) { animation: fadeInUp 0.4s ease both; }
.diag-rdv-etape + .diag-rdv-etape { margin-top: var(--space-sm); }
.diag-group { border: 0; padding: 0; margin: 0 0 var(--space-lg); }
.diag-group legend { font-size: 0.95rem; margin-bottom: var(--space-sm); }
.diag-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--space-lg); }
.diag-field-full { grid-column: 1 / -1; }
.diag-fields small { font-weight: 400; color: var(--color-muted-foreground); }
.diag-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.diag-consent { display: flex; gap: var(--space-sm); align-items: flex-start; font-size: 0.875rem; cursor: pointer; }
.diag-consent input { margin-top: 0.2rem; width: 18px; height: 18px; accent-color: var(--color-primary); flex-shrink: 0; }
.diag .is-invalid input:not([type="radio"]):not([type="checkbox"]),
.diag .is-invalid select { border-color: var(--color-destructive); }
.diag .is-invalid .diag-option span,
.diag-consent.is-invalid span { border-color: var(--color-destructive); color: var(--color-destructive); }

/* Couleur de la page selon le résultat du diagnostic */
body[data-diag-tier="ok"]    { --teinte: #059669; --teinte-fonce: #047857; --teinte-pale: #ECFDF5; --teinte-bord: #A7F3D0; }
body[data-diag-tier="check"] { --teinte: #CA8A04; --teinte-fonce: #A16207; --teinte-pale: #FEFCE8; --teinte-bord: #FDE68A; }
body[data-diag-tier="watch"] { --teinte: #EA580C; --teinte-fonce: #C2410C; --teinte-pale: #FFF7ED; --teinte-bord: #FED7AA; }
body[data-diag-tier="alert"] { --teinte: #DC2626; --teinte-fonce: #B91C1C; --teinte-pale: #FEF2F2; --teinte-bord: #FECACA; }
body, .page-hero, .page-hero h1, .diag { transition: background-color 0.8s ease, border-color 0.8s ease, color 0.8s ease, box-shadow 0.8s ease; }
body[data-diag-tier] { background-color: var(--teinte-pale); }
body[data-diag-tier] .page-hero {
  background-color: var(--teinte-pale);
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.6), transparent);
  border-bottom-color: var(--teinte-bord);
}
body[data-diag-tier] .page-hero h1 { color: var(--teinte-fonce); }
body[data-diag-tier] .diag {
  border-color: var(--teinte-bord);
  border-top: 6px solid var(--teinte);
  box-shadow: 0 18px 40px -18px var(--teinte);
}
body[data-diag-tier] .diag .btn-primary { background-color: var(--teinte-fonce); }
body[data-diag-tier] .diag .btn-primary:hover { background-color: var(--teinte-fonce); filter: brightness(0.9); }
body[data-diag-tier] .diag .btn-outline { color: var(--teinte-fonce); border-color: var(--teinte-fonce); }
body[data-diag-tier] .diag .btn-outline:hover { background-color: var(--teinte-fonce); color: #fff; }
body[data-diag-tier] .diag-rdv { border-top-color: var(--teinte-bord); }
body[data-diag-tier] .diag-option:hover span { border-color: var(--teinte); }
body[data-diag-tier] .diag-option input:checked + span { border-color: var(--teinte-fonce); background: var(--teinte-pale); }
body[data-diag-tier] .diag-option input:checked + span::before { border-color: var(--teinte-fonce); background: var(--teinte-fonce); }
body[data-diag-tier] .diag-consent input { accent-color: var(--teinte-fonce); }
@media (prefers-reduced-motion: reduce) {
  body, .page-hero, .page-hero h1, .diag { transition: none; }
}

/* Confirmation */
.diag-done { text-align: center; padding: var(--space-xl) 0; }
.diag-done-icon {
  width: 64px; height: 64px; margin: 0 auto var(--space-lg);
  border-radius: 50%; background: #D1FAE5; color: #059669;
  display: grid; place-items: center;
}
.diag-done-icon svg { width: 32px; height: 32px; }
.diag-done p { max-width: 480px; margin: 0 auto var(--space-xl); }
.diag-done-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-md); }

@media (max-width: 640px) {
  .diag { padding: var(--space-lg); }
  .diag-options, .diag-fields { grid-template-columns: 1fr; }
  .diag-score { flex-direction: column; text-align: center; }
  .diag-disclaimer { border-left: 0; padding-left: 0; }
  .diag-nav .btn { flex: 1 1 100%; }
  .diag-bilan { padding: var(--space-md); }
  .diag-bilan-ligne { flex-direction: column; }
}

/* --- PHOTOS PRODUIT DÉTOURÉES (fond blanc) --- */
.product-image--packshot {
  object-fit: contain;
  background-color: #fff;
  padding: var(--space-md);
}
.products-grid--4 { grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
@media (max-width: 1100px) { .products-grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .products-grid--4 { grid-template-columns: 1fr; } }

/* --- AJUSTEMENTS RESPONSIVE --- */
/* La barre de copyright occupe toute la largeur de la grille du footer */
.footer-bottom { grid-column: 1 / -1; }

@media (max-width: 768px) {
  /* Zones tactiles confortables (≈ 44 px) */
  .footer-links a { display: inline-block; padding-block: 0.6rem; }
  .contact-info a { display: inline-block; padding-block: 0.5rem; }
}

@media (max-width: 640px) {
  .diag-progress-hint { display: none; }
  /* Action principale en premier sous le pouce */
  .diag-nav { flex-direction: column-reverse; }
  .diag-nav .btn[disabled] { display: none; }
  .calc-summary dl > div { flex-wrap: wrap; }
}

@media (max-width: 1024px) {
  /* Flèches du carrousel en bas, de part et d'autre des points : elles ne masquent plus le titre */
  .slider-arrow {
    top: auto;
    bottom: calc(var(--space-lg) - 16px);
    transform: none;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }
}

/* Illustration (fond intégré) : affichée entière */
.product-image--illu { object-fit: contain; background-color: #E6F0FE; }

/* --- FLUIDITÉ ET INTERACTIONS --- */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 9999;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0); transform-origin: 0 50%; pointer-events: none;
}
.btn-ripple {
  position: absolute; width: 100px; height: 100px; border-radius: 50%;
  background: rgba(255, 255, 255, .35); transform: scale(0); pointer-events: none;
  animation: ripple .6s ease-out;
}
@media (hover: hover) {
  .btn:hover { transform: translateY(-2px); }
  .btn:active { transform: translateY(0); }
}

/* Bouton WhatsApp flottant */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 900;
  display: inline-flex; align-items: center; gap: .5rem;
  background: #25D366; color: #fff; font: 600 .95rem var(--font-heading);
  padding: .8rem 1.1rem .8rem .9rem; border-radius: var(--radius-full);
  box-shadow: 0 10px 28px rgba(37, 211, 102, .38), 0 2px 6px rgba(0, 0, 0, .12);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  animation: wa-entree .5s ease-out 1.2s both;
}
.wa-float svg { width: 24px; height: 24px; }
.wa-float:hover { color: #fff; transform: translateY(-3px); box-shadow: 0 14px 32px rgba(37, 211, 102, .45), 0 2px 6px rgba(0, 0, 0, .12); }
.wa-float:focus-visible { outline: 3px solid var(--color-ring); outline-offset: 3px; }
@keyframes wa-entree { from { opacity: 0; transform: translateY(16px) scale(.9); } to { opacity: 1; transform: none; } }
@media (max-width: 600px) {
  .wa-float { right: 14px; bottom: 14px; padding: .85rem; }
  .wa-float span { display: none; }
}

/* Formulaire de devis : état d'envoi */
.form-group .is-invalid { border-color: var(--color-destructive); }
.form-status { margin: var(--space-md) 0 0; padding: .8rem 1rem; border-radius: var(--radius-md); font-size: .92rem; }
.form-status.is-info { background: var(--color-background); color: var(--color-foreground); }
.form-status.is-success { background: #ECFDF5; color: #047857; font-weight: 600; }
.form-status.is-error { background: #FEF2F2; color: #B91C1C; }
.btn.is-loading { opacity: .75; cursor: progress; }
.form-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .wa-float { animation: none; }
  .btn-ripple { display: none; }
}

/* Page de confidentialité */
.legal { max-width: 760px; }
.legal h2 { font-size: 1.25rem; margin: var(--space-xl) 0 var(--space-sm); }
.legal p, .legal li { color: var(--color-muted-foreground); line-height: 1.7; }
.legal ul { padding-left: 1.2rem; }
.legal-maj { font-size: .85rem; }

/* En-tête de la page Contact : fond vidéo d'eau */
.page-hero--eau {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 0;
  color: #fff;
  background: #0B5C8F url("img/fonds/eau-bulles-fixe.webp") center / cover no-repeat;
}
.page-hero-video {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.page-hero--eau.est-anime .page-hero-video { opacity: 1; }
.page-hero--eau::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(3, 61, 143, .55) 0%, rgba(3, 61, 143, .72) 100%);
}
.page-hero--eau h1 { color: #fff; text-shadow: 0 2px 18px rgba(3, 30, 80, .35); }
.page-hero--eau p { color: rgba(255, 255, 255, .92); font-size: 1.1rem; }

/* Pied de page : zones d'intervention (référencement local) */
.footer-zones { font-size: 0.8rem; line-height: 1.6; color: rgba(255, 255, 255, 0.6); max-width: 820px; margin: 0 auto var(--space-sm); }