/* ============================================
   COAGEFFI - MOBILE OPTIMIZED STYLES
   Design responsive et accessible
   Version: 1.0
============================================ */

/* ============================================
   VARIABLES GLOBALES MOBILE
============================================ */
:root {
  --primary: #10B981;
  --secondary: #FF8C42;
  --light: #F0FDF4;
  --dark: #F0FDF4;
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #17a2b8;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #F0FDF4;
  
  /* Tailles de police mobile */
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.75rem;  /* 28px */
  --font-size-4xl: 2rem;     /* 32px */
  
  /* Espacements mobile */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  
  /* Bordures */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 9999px;
  
  /* Ombres mobile */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-whatsapp: 1080;
  --z-floating-language: 1090;
}

/* ============================================
   RESET ET BASE MOBILE
============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
  min-height: 100vh;
  width: 100%;
}

/* Amélioration de la lisibilité du texte */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-md);
  line-height: 1.7;
  color: var(--gray-700);
}

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

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

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

ul, ol {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

li {
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

/* ============================================
   CONTAINER MOBILE OPTIMISÉ
============================================ */
.container {
  width: 100%;
  padding-right: var(--space-md);
  padding-left: var(--space-md);
  margin-right: auto;
  margin-left: auto;
  position: relative;
}

/* Points de rupture mobile-first */
@media (min-width: 576px) {
  .container {
    max-width: 540px;
    padding-right: var(--space-lg);
    padding-left: var(--space-lg);
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* ============================================
   EN-TÊTE MOBILE
============================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #10B981;
  box-shadow: var(--shadow-md);
  z-index: var(--z-fixed);
  padding: var(--space-sm) 0;
  backdrop-filter: blur(10px);
  background-color: rgba(16, 185, 129, 0.95);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* Logo */
.logo-brand h2 {
  font-size: var(--font-size-xl);
  margin: 0;
  color: #FFFFFF;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.logo-brand p {
  font-size: var(--font-size-xs);
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.3px;
}

/* Menu principal - caché sur mobile */
.nav-menu {
  display: none;
}

/* Sélecteur de langue dans l'en-tête - caché sur mobile */
.language-selector {
  display: none;
}

/* Bouton CTA mobile */
.nav-cta .btn {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

/* Menu hamburger mobile */
.mobile-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: background-color var(--transition-base);
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}

.mobile-menu:hover {
  background: var(--secondary);
}

.mobile-menu i {
  font-size: 1.25rem;
}

/* ============================================
   NAVIGATION MOBILE (DRAWER)
============================================ */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 320px;
  height: 100vh;
  background: var(--white);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  padding: var(--space-xl) var(--space-lg);
  overflow-y: auto;
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.mobile-nav.active::before {
  opacity: 1;
  pointer-events: all;
}

.close-menu {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-200);
  color: var(--gray-700);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.close-menu:hover {
  background: var(--gray-300);
  transform: rotate(90deg);
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: var(--space-2xl) 0 0 0;
  flex: 1;
}

.mobile-nav li {
  margin-bottom: 0;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  color: var(--gray-800);
  font-weight: 500;
  border-bottom: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.mobile-nav a:hover {
  color: var(--primary);
  padding-left: var(--space-sm);
}

.mobile-nav a i {
  width: 24px;
  color: var(--primary);
  font-size: var(--font-size-sm);
}

.mobile-nav .btn {
  margin-top: auto;
  width: 100%;
  justify-content: center;
}

/* ============================================
   SÉLECTEUR DE LANGUE FLOTTANT MOBILE
============================================ */
.floating-language-selector {
  position: fixed;
  bottom: 100px;
  right: var(--space-md);
  z-index: var(--z-floating-language);
  background: var(--white);
  border-radius: var(--border-radius-full);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: transform var(--transition-base);
}

.floating-language-selector:active {
  transform: scale(0.95);
}

.floating-language-selector select {
  border: none;
  background: transparent;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--primary);
  outline: none;
  cursor: pointer;
  appearance: none;
  padding-right: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2310B981' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right center;
  background-size: 12px;
}

.lang-flag {
  font-size: 1.25rem;
  line-height: 1;
}

/* ============================================
   SECTIONS MOBILE
============================================ */
section {
  padding: var(--space-2xl) 0;
  position: relative;
  width: 100%;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding: 0 var(--space-md);
}

.section-title h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
  color: var(--primary);
}

.section-title p {
  color: var(--gray-600);
  font-size: var(--font-size-base);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   HERO MOBILE
============================================ */
.hero-imposant {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  padding-bottom: var(--space-2xl);
  position: relative;
}

.hero-imposant::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #FF8C42;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: #000000;
  text-align: center;
  padding: 0 var(--space-md);
}

.hero-content h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
  color: #000000;
  line-height: 1.2;
}

.hero-content p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  color: #000000;
  line-height: 1.6;
}

.hero-btns {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 300px;
  margin: 0 auto;
}

/* ============================================
   CALCULATEUR MOBILE
============================================ */
.calculator {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
  max-width: 600px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.form-group {
  width: 100%;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-control {
  width: 100%;
  padding: var(--space-md);
  font-size: var(--font-size-base);
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  background: var(--white);
  color: var(--gray-800);
  transition: all var(--transition-base);
  -webkit-appearance: none;
  appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 58, 95, 0.1);
}

.form-control::placeholder {
  color: var(--gray-500);
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236c757d' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  background-size: 12px;
  padding-right: var(--space-2xl);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
  line-height: 1.5;
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--gray-700);
  font-size: var(--font-size-sm);
}

/* Range sliders optimisés pour mobile */
.range-container {
  position: relative;
  padding-top: var(--space-lg);
}

.range-value {
  position: absolute;
  top: 0;
  left: 0;
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--primary);
}

input[type="range"] {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  background: var(--gray-300);
  border-radius: var(--border-radius-full);
  outline: none;
  margin: var(--space-md) 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid var(--white);
  box-shadow: var(--shadow-md);
}

input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid var(--white);
  box-shadow: var(--shadow-md);
}

.loan-range-indicators {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--gray-600);
  margin-top: var(--space-sm);
}

/* Résultat du calculateur */
.calculator-result {
  text-align: center;
  padding: var(--space-lg);
  background: var(--gray-100);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-xl);
}

.monthly-payment {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.calculator-result p {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* ============================================
   BOUTONS MOBILE OPTIMISÉS
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
  touch-action: manipulation;
  min-height: 48px; /* Taille minimale pour les doigts */
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: translateY(1px);
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%, -50%);
  transform-origin: 50% 50%;
}

.btn:focus:not(:active)::after {
  animation: ripple 1s ease-out;
}

@keyframes ripple {
  0% {
    transform: scale(0, 0);
    opacity: 0.5;
  }
  100% {
    transform: scale(40, 40);
    opacity: 0;
  }
}

.btn-primary {
  background: #E67A2A;
  color: var(--white);
  border-color: #E67A2A;
}

.btn-primary:hover {
  background: #cc6622;
  border-color: #cc6622;
  color: var(--white);
}

.btn-secondary {
  background: #E67A2A;
  color: var(--white);
  border-color: #E67A2A;
}

.btn-secondary:hover {
  background: #cc6622;
  border-color: #cc6622;
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: #000000;
  border-color: #000000;
}

.btn-outline:hover {
  background: #000000;
  color: var(--white);
}

/* ============================================
   SERVICES MOBILE
============================================ */
#services .grid-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding: 0 var(--space-md);
}

.service-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.service-image {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.service-icon {
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  background: var(--primary);
  color: var(--white);
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.service-content {
  padding: var(--space-xl);
}

.service-content h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  color: var(--primary);
}

.service-content p {
  color: var(--gray-600);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

/* ============================================
   SERVICES - Desktop improvements
   Improves layout and card balance on larger screens
============================================ */
@media (min-width: 992px) {
  .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; align-items: stretch; }
  .service-card { display: flex; flex-direction: column; min-height: 100%; }
  .service-hero-img { width: 100%; height: 220px; object-fit: cover; display:block; border-radius: 10px 10px 0 0; }
  .service-card .card-body { flex: 1; padding: 28px; display:flex; flex-direction:column; }
  .service-card .card-body h3 { font-size: 1.25rem; margin-bottom: 12px; color: var(--primary); }
  .service-card .card-body p { color: var(--gray-600); margin-bottom: 16px; line-height: 1.6; }
  .service-card .btn-outline { margin-top: auto; align-self: flex-start; }
}

/* ============================================
   PROCESSUS MOBILE
============================================ */
#processus .grid-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  text-align: center;
  padding: 0 var(--space-md);
}

.process-step {
  position: relative;
}

.process-number {
  width: 64px;
  height: 64px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0 auto var(--space-lg);
  position: relative;
  z-index: 1;
}

.process-step h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: var(--primary);
}

.process-step p {
  color: var(--gray-600);
  font-size: var(--font-size-base);
  line-height: 1.6;
}

/* ============================================
   TÉMOIGNAGES MOBILE (CAROUSEL)
============================================ */
.testimonials-carousel {
  position: relative;
  overflow: hidden;
  margin: 0 var(--space-md);
  padding: var(--space-lg) 0;
}

.testimonials-track {
  display: flex;
  gap: var(--space-md);
  transition: transform var(--transition-base);
  padding: var(--space-sm) 0;
}

.testimonial-slide {
  flex: 0 0 calc(100% - 32px);
  min-width: calc(100% - 32px);
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary);
}

.testimonial-info h4 {
  margin: 0 0 var(--space-xs);
  font-size: var(--font-size-base);
  color: var(--primary);
}

.testimonial-rating {
  color: var(--warning);
  font-size: var(--font-size-sm);
  letter-spacing: 2px;
}

.testimonial-text {
  color: var(--gray-700);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-base);
}

.testimonial-meta {
  border-top: 1px solid var(--gray-200);
  padding-top: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

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

.carousel-controls button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

.carousel-controls button:active {
  transform: scale(0.95);
  background: var(--secondary);
}

.carousel-pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gray-300);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel-dot.active {
  background: var(--primary);
  transform: scale(1.2);
}

/* ============================================
   FAQ MOBILE
============================================ */
.faq-item {
  background: var(--white);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  padding: var(--space-lg);
  font-weight: 600;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.faq-question i {
  transition: transform var(--transition-base);
  color: var(--gray-500);
}

.faq-answer {
  padding: 0 var(--space-lg);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-answer.active {
  padding: 0 var(--space-lg) var(--space-lg);
  max-height: 500px;
}

.faq-answer p {
  color: var(--gray-700);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   CONTACT MOBILE
============================================ */
#contact .grid-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding: 0 var(--space-md);
}

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

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-details h4 {
  margin: 0 0 var(--space-xs);
  font-size: var(--font-size-base);
  color: var(--primary);
}

.contact-details p {
  color: var(--gray-600);
  margin: 0;
  line-height: 1.5;
}

.contact-form {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

/* ============================================
   WIDGET WHATSAPP MOBILE
============================================ */
.whatsapp-widget {
  position: fixed;
  bottom: var(--space-xl);
  left: var(--space-md);
  z-index: var(--z-whatsapp);
}

.whatsapp-button {
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

.whatsapp-button:active {
  transform: scale(0.95);
}

.whatsapp-button svg {
  width: 30px;
  height: 30px;
  fill: var(--white);
}

.notification-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--danger);
  color: var(--white);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.whatsapp-chat-box {
  position: absolute;
  bottom: 80px;
  left: 0;
  width: 300px;
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  display: none;
  overflow: hidden;
}

.whatsapp-chat-box.active {
  display: block;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-header {
  background: #075E54;
  color: var(--white);
  padding: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.chat-header-avatar {
  width: 40px;
  height: 40px;
  background: var(--white);
  color: #075E54;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.chat-header-info h3 {
  margin: 0;
  font-size: var(--font-size-base);
  color: var(--white);
}

.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  margin-right: var(--space-xs);
}

.close-chat {
  margin-left: auto;
  background: transparent;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
}

.close-chat:active {
  background: rgba(255, 255, 255, 0.1);
}

.chat-body {
  padding: var(--space-md);
  max-height: 300px;
  overflow-y: auto;
}

.quick-messages {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.quick-message-btn {
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  padding: var(--space-sm);
  font-size: var(--font-size-sm);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quick-message-btn:active {
  background: var(--gray-200);
  transform: translateY(1px);
}

.chat-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--gray-200);
  display: flex;
  gap: var(--space-sm);
}

.chat-input {
  flex: 1;
  padding: var(--space-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
}

.send-button {
  width: 44px;
  height: 44px;
  background: #25D366;
  border: none;
  border-radius: var(--border-radius-md);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.send-button:active {
  background: #128C7E;
  transform: scale(0.95);
}

.send-button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ============================================
   ALERTES MOBILE
============================================ */
.alert {
  padding: var(--space-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-base);
  line-height: 1.5;
  position: relative;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert-success {
  background: rgba(40, 167, 69, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(220, 53, 69, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
}

/* ============================================
   FOOTER MOBILE
============================================ */
footer {
  background: #10B981;
  color: #FFFFFF;
  padding: var(--space-2xl) 0 var(--space-xl);
}

footer .grid-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding: 0 var(--space-md);
}

footer h3 {
  color: #FFFFFF;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

footer li {
  margin-bottom: var(--space-sm);
}

footer a {
  color: #FFFFFF;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

footer a:hover {
  color: #D1FAE5;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
  color: #FFFFFF;
}

.footer-social a:hover {
  background: rgba(255, 255, 255, 0.4);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: var(--space-xl);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
}

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

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.p-1 { padding: var(--space-sm); }
.p-2 { padding: var(--space-md); }
.p-3 { padding: var(--space-lg); }
.p-4 { padding: var(--space-xl); }
.p-5 { padding: var(--space-2xl); }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

/* ============================================
   ANIMATIONS MOBILE
============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.animate-fade-in {
  animation: fadeIn 0.5s ease;
}

.animate-slide-up {
  animation: slideInUp 0.5s ease;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* ============================================
   RESPONSIVE - TABLETTE
============================================ */
@media (min-width: 768px) {
  :root {
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }
  
  .calculator-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  #services .grid-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  #processus .grid-container {
    grid-template-columns: repeat(2, 2fr);
    gap: var(--space-2xl);
  }
  
  .testimonial-slide {
    flex: 0 0 calc(50% - 16px);
    min-width: calc(50% - 16px);
  }
  
  .hero-btns {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-lg);
    max-width: none;
  }
  
  footer .grid-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   RESPONSIVE - DESKTOP
============================================ */
@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
  
  .mobile-menu {
    display: none;
  }
  
  .mobile-nav {
    display: none;
  }
  
  #services .grid-container {
    grid-template-columns: repeat(3, 1fr);
  }
  
  #processus .grid-container {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .testimonial-slide {
    flex: 0 0 calc(33.333% - 16px);
    min-width: calc(33.333% - 16px);
  }
  
  #contact .grid-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  footer .grid-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================
   ACCESSIBILITÉ ET SUPPORT TOUCH
============================================ */
@media (hover: none) and (pointer: coarse) {
  /* Améliorations pour les écrans tactiles */
  .btn, 
  .mobile-menu,
  .carousel-controls button,
  .whatsapp-button,
  .quick-message-btn,
  .send-button {
    min-height: 44px;
    min-width: 44px;
  }
  
  input,
  select,
  textarea {
    font-size: 16px; /* Évite le zoom sur iOS */
  }
  
  /* Meilleur espacement pour les doigts */
  .mobile-nav a {
    padding: var(--space-lg) 0;
  }
  
  /* Boutons plus grands pour les interactions tactiles */
  .form-control {
    padding: var(--space-lg);
  }
}

/* Support pour les navigateurs plus anciens */
@supports not (display: grid) {
  #services .grid-container,
  #processus .grid-container,
  .calculator-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
  }
  
  .service-card,
  .process-step,
  .form-group {
    flex: 1 1 300px;
  }
}

/* ============================================
   MODE SOMBRE PREFÉRÉ
============================================ */
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #3a7bd5;
    --secondary: #ff8a65;
    --light: #1a1a1a;
    --dark: #0a0a0a;
    --gray-100: #1a1a1a;
    --gray-200: #2a2a2a;
    --gray-300: #3a3a3a;
    --gray-400: #4a4a4a;
    --gray-500: #5a5a5a;
    --gray-600: #6a6a6a;
    --gray-700: #7a7a7a;
    --gray-800: #8a8a8a;
    --gray-900: #9a9a9a;
  }
  
  body {
    background: var(--dark);
    color: var(--gray-300);
  }
  
  .calculator,
  .service-card,
  .testimonial-slide,
  .contact-form {
    background: var(--gray-100);
  }
  
  .form-control {
    background: var(--gray-200);
    color: var(--gray-300);
    border-color: var(--gray-300);
  }
}

/* ============================================
   IMPRESSION
============================================ */
@media print {
  .floating-language-selector,
  .whatsapp-widget,
  .mobile-menu,
  .nav-cta,
  .hero-btns .btn-outline {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }
  
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  section {
    padding: 1cm 0;
    page-break-inside: avoid;
  }
  
  .btn {
    border: 1px solid #000;
    background: #fff;
    color: #000;
  }
}