/* =====================================================
   VISION-PLAN-PRO - STYLES MODERNES ET PROFESSIONNELS
   ===================================================== */

:root {
  /* Couleurs principales */
  --color-vision: #141414;
  --color-plan: #1e8ae2;
  --color-pro: #00BCD4;
  --color-bg-dark: rgba(0, 0, 0, 0.85);
  --color-bg-light: rgba(255, 255, 255, 0.05);
  --color-text-light: #ffffff;
  --color-text-gray: #e0e0e0;
  
  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset et base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-light);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Background */
.background {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  z-index: -1;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Barre de progression du scroll */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-plan), var(--color-pro));
  z-index: 9999;
  transition: width 0.1s ease;
  box-shadow: 0 2px 8px rgba(30, 138, 226, 0.5);
}

/* =====================================================
   ÉCRAN DE CHARGEMENT
   ===================================================== */

/* Masquer le contenu de la page pendant le chargement */
body:not(.loaded) > *:not(.loading-overlay) {
  opacity: 0 !important;
  visibility: hidden !important;
}

/* Overlay de chargement */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
  color: white;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

/* Masquer l'overlay après le chargement */
.loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Logo de chargement */
.loading-logo {
  width: 120px;
  height: 120px;
  margin-bottom: 30px;
  animation: pulse 1.5s infinite;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.4)) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.1);
  padding: 10px;
}

/* Animation de pulsation */
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.9;
    box-shadow: 0 0 0 0 rgba(128, 128, 128, 0.4);
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
  70% {
    box-shadow: 0 0 0 15px rgba(128, 128, 128, 0);
  }
  100% {
    transform: scale(1);
    opacity: 0.9;
    box-shadow: 0 0 0 0 rgba(128, 128, 128, 0);
  }
}

/* Spinner de chargement */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top: 3px solid #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

/* Animation de rotation */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Texte app name */
.app-name {
  color: #ffffff;
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  margin-top: 15px;
  margin-bottom: 10px;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
  letter-spacing: 1px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

/* Responsive pour l'écran de chargement */
@media (max-width: 768px) {
  .loading-logo {
    width: 100px;
    height: 100px;
    margin-bottom: 25px;
  }

  .loading-spinner {
    width: 40px;
    height: 40px;
    margin-bottom: 15px;
  }

  .app-name {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .loading-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
  }

  .loading-spinner {
    width: 35px;
    height: 35px;
    margin-bottom: 12px;
  }

  .app-name {
    font-size: 20px;
  }
}

/* =====================================================
   NAVIGATION
   ===================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 3rem;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(15px);
  z-index: 1000;
  transition: all var(--transition-normal);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  padding: 0.4rem 3rem;
}

.nav-logo .logo {
  height: 42px;
  width: auto;
  transition: transform var(--transition-normal);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.nav-logo a {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.nav-logo .logo:hover {
  transform: scale(1.05);
}

.nav-logo .logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* Menu déroulant */
.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin: 0.5rem auto 0 auto;
  background: rgba(0, 0, 0, 0.95);
  width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.3);
  z-index: 1001;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(15px);
}

.dropdown-content a {
  color: var(--color-text-light);
  padding: 0.65rem 1.1rem;
  text-decoration: none;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  transition: all var(--transition-normal);
  border-radius: 6px;
  font-size: clamp(0.8rem, 1.2vw, 0.9rem);
  font-weight: 500;
}

.dropdown-content a:hover {
  background: linear-gradient(135deg, rgba(52, 152, 219, 0.8), rgba(41, 128, 185, 0.8));
  color: white;
}

.nav-dropdown:hover .dropdown-content,
.dropdown-content:hover {
  display: block;
  opacity: 1;
  visibility: visible;
  animation: slideDown 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Pseudo-élément invisible pour éviter que le menu se ferme pendant le déplacement de la souris */
.nav-dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -10px;
  right: -10px;
  height: 10px;
  background: transparent;
}

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

.nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  font-weight: 500;
  font-size: clamp(0.8rem, 1.2vw, 0.95rem);
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  transition: all var(--transition-normal);
  position: relative;
  white-space: nowrap;
  display: flex;
  align-items: center;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-plan), var(--color-pro));
  transition: width var(--transition-normal);
}

.nav-link:hover::after {
  width: 80%;
  margin: 0 auto;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-pro);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
/* =====================================================
   SECTION HERO CENTRÉE
   ===================================================== */

.hero-section-centered {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(30, 138, 226, 0.05) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
}

.hero-centered-content {
  max-width: 900px;
  text-align: center;
  animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -2px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.title-vision {
  color: var(--color-vision);
  text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.3);
}

.title-plan {
  color: var(--color-plan);
  text-shadow: 2px 2px 8px rgba(30, 138, 226, 0.6);
}

.title-pro {
  color: var(--color-pro);
  text-shadow: 2px 2px 8px rgba(0, 188, 212, 0.6);
}

.hero-subtitle-centered {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-plan);
  margin-bottom: 2rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-description-centered {
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.8;
  color: var(--color-text-gray);
  margin-bottom: 3rem;
  text-align: center;
}

.hero-cta-centered {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px;
  transition: all var(--transition-normal);
  display: inline-block;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-plan), var(--color-pro));
  color: var(--color-text-light);
  border: 2px solid transparent;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(30, 138, 226, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-light);
  border: 2px solid var(--color-plan);
}

.btn-secondary:hover {
  background: rgba(30, 138, 226, 0.1);
  transform: translateY(-3px);
}

/* =====================================================
   SECTIONS FONCTIONNALITÉS ALTERNÉES
   ===================================================== */

.feature-section {
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
}

.feature-section.alternate-bg {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(30, 138, 226, 0.05) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-left,
.feature-right {
  background: linear-gradient(90deg, 
    rgba(0, 0, 0, 0.5) 0%, 
    rgba(0, 0, 0, 0.3) 50%, 
    rgba(0, 0, 0, 0.5) 100%
  );
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-image {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-slow);
}

.feature-image:hover {
  transform: scale(1.02);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
}

.feature-content h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  color: var(--color-plan);
  text-shadow: 0 2px 10px rgba(30, 138, 226, 0.4);
}

.feature-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text-gray);
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  padding: 0.75rem 0;
  font-size: 1.05rem;
  color: var(--color-text-gray);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-list li:last-child {
  border-bottom: none;
}

/* =====================================================
   SECTION TARIFS / FORMULES
   ===================================================== */

.pricing-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(30, 138, 226, 0.05) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-section.alternate-bg {
  background: linear-gradient(135deg, rgba(30, 138, 226, 0.05) 0%, rgba(0, 188, 212, 0.05) 100%);
  border-top: 1px solid rgba(30, 138, 226, 0.1);
  border-bottom: 1px solid rgba(30, 138, 226, 0.1);
}

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

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: 3rem;
  color: var(--color-text-light);
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

/* =====================================================
   SECTION ÉVALUATION
   ===================================================== */

.evaluation-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background: rgba(0, 0, 0, 0.4);
  position: relative;
}

.evaluation-container {
  max-width: 1200px;
  margin: 0 auto;
  background: transparent;
  padding: 2.5rem;
  border-radius: 20px;
  border: none;
  backdrop-filter: none;
}

.evaluation-container h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--color-plan);
  text-align: center;
}

.evaluation-container p {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: var(--color-text-gray);
}

.evaluation-form {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  gap: 0.8rem;
}

.evaluation-form-2cols {
  max-width: 900px;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

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

.btn-calculate-full {
  grid-column: 1 / -1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.8rem;
}

.form-group label {
  color: white;
  font-weight: 500;
  font-size: 1rem;
}

.form-control {
  padding: 0.8rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: white;
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-plan);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(30, 138, 226, 0.1);
}

.form-control::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.evaluation-form input {
  width: 100%;
  padding: 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.5);
  color: var(--color-text-light);
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.evaluation-form input:focus {
  outline: none;
  border-color: var(--color-plan);
  box-shadow: 0 0 15px rgba(30, 138, 226, 0.3);
}

.btn-calculate {
  width: 100%;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, var(--color-plan), var(--color-pro));
  color: var(--color-text-light);
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-calculate:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(30, 138, 226, 0.4);
}

.resultat {
  margin-top: 2rem;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 15px;
  animation: slideIn 0.5s ease;
}

.resultat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.resultat-item {
  color: white;
  margin: 0;
  padding: 1rem;
  background: rgba(30, 138, 226, 0.1);
  border-radius: 8px;
  line-height: 1.6;
}

.resultat-item.success {
  color: #2ecc71;
  background: rgba(46, 204, 113, 0.1);
  font-weight: bold;
}

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

.resultat-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-pro);
}

/* Grille des prix */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

/* Carrousel masqué par défaut (desktop) */
.pricing-carousel-container {
  display: none;
}

.pricing-card {
  background: rgba(0, 0, 0, 0.5);
  padding: 1.25rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-plan), var(--color-pro));
  transform: scaleX(0);
  transition: none;
}

.pricing-card.lite-eco::before {
  background: linear-gradient(90deg, #ffc107, #ffb300);
}

.pricing-card.standard-card::before {
  background: linear-gradient(90deg, #28a745, #20c997);
}

.pricing-card.featured {
  border: 2px solid var(--color-plan);
  transform: scale(1.10);
}

.pricing-card.lite-eco {
  border: 2px solid #ffc107;
  transform: scale(0.95);
}

.pricing-card.standard-card {
  border: 2px solid #28a745;
  transform: scale(0.95);
}

.badge {
  position: absolute;
  top: 20px;
  right: -40px;
  background: var(--color-plan);
  color: white;
  padding: 0.5rem 3.5rem;
  transform: rotate(45deg);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.badge-eco {
  background: #ffc107;
  color: #000;
}

.badge-standard {
  background: #28a745;
  color: #fff;
}

.pricing-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
  color: var(--color-text-light);
}

.price-label {
  font-size: 0.75rem;
  color: var(--color-text-gray);
  font-weight: 400;
  margin-bottom: 0.3rem;
  text-transform: lowercase;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-plan);
  margin-bottom: 0.8rem;
  line-height: 1;
}

.pricing-card.lite-eco .price {
  color: #ffc107;
}

.pricing-card.standard-card .price {
  color: #28a745;
}

.price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-gray);
}

.pricing-card .duration {
  color: rgba(255, 255, 255, 0.9);
  font-weight: bold;
  margin: 0.3rem 0 0.8rem 0;
  font-size: 0.9rem;
}

.pricing-card .note {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  margin: 0.8rem 0 0.8rem 0;
  font-style: italic;
}

.features-list {
  list-style: none;
  padding: 0;
  margin-bottom: 1.2rem;
  text-align: left;
}

.features-list li {
  padding: 0.5rem 0;
  color: var(--color-text-gray);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.9rem;
}

.btn-pricing {
  display: block;
  width: 100%;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--color-plan), var(--color-pro));
  color: var(--color-text-light);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.pricing-card.lite-eco .btn-pricing {
  background: linear-gradient(135deg, #ffc107, #ffb300);
  color: #000;
}

.pricing-card.standard-card .btn-pricing {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: #fff;
}

.pricing-note {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-style: italic;
  font-size: 0.9rem;
  margin-top: 2rem;
}

/* =====================================================
   SECTION À PROPOS
   ===================================================== */

.about-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(30, 138, 226, 0.05) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.about-content {
  margin-top: 3rem;
}

.about-text {
  background: rgba(0, 0, 0, 0.4);
  padding: 2.5rem;
  border-radius: 20px;
  margin-bottom: 3rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-text h3 {
  font-size: 2rem;
  color: var(--color-plan);
  margin-bottom: 1rem;
  text-align: center;
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text-gray);
}

.about-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.value-card {
  background: rgba(0, 0, 0, 0.5);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-plan);
  box-shadow: 0 15px 40px rgba(30, 138, 226, 0.2);
}

.value-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.value-card h4 {
  font-size: 1.5rem;
  color: var(--color-plan);
  margin-bottom: 0.75rem;
}

.value-card p {
  color: var(--color-text-gray);
  line-height: 1.6;
}

/* =====================================================
   SECTION CONTACT
   ===================================================== */

.contact-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background: rgba(0, 0, 0, 0.4);
}

.contact-container {
  max-width: 900px;
  margin: 0 auto;
}

.contact-content {
  margin-top: 3rem;
}

.contact-info {
  text-align: center;
  margin-bottom: 3rem;
}

.contact-info p {
  font-size: 1.2rem;
  color: var(--color-text-gray);
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 1.1rem;
}

.contact-item .icon {
  font-size: 1.5rem;
}

.contact-item a {
  color: var(--color-plan);
  text-decoration: none;
  transition: color var(--transition-normal);
}

.contact-item a:hover {
  color: var(--color-pro);
}

.contact-form {
  background: transparent;
  padding: 2.5rem;
  border-radius: 20px;
  border: none;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.5);
  color: var(--color-text-light);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-plan);
  box-shadow: 0 0 15px rgba(30, 138, 226, 0.3);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.btn-submit {
  width: 100%;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--color-plan), var(--color-pro));
  color: var(--color-text-light);
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(30, 138, 226, 0.4);
}

/* =====================================================
   SECTION SOUSCRIPTION
   ===================================================== */

.subscription-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(30, 138, 226, 0.05) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.subscription-container {
  max-width: 900px;
  margin: 0 auto;
}

.subscription-intro {
  text-align: center;
  font-size: 1.2rem;
  color: var(--color-text-gray);
  margin-bottom: 3rem;
}

.subscription-form {
  background: transparent;
  padding: 2.5rem;
  border-radius: 20px;
  border: none;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.form-grid input,
.form-grid select {
  padding: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: white;
  font-size: 1rem;
}

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

.form-options-row {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.form-option {
  flex: 1;
  min-width: 200px;
}

.form-option label {
  color: white;
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.form-option select {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid rgba(30, 138, 226, 0.3);
  border-radius: 8px;
  background: rgba(30, 138, 226, 0.08);
  color: white;
  font-size: 1rem;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.form-option select:hover {
  border-color: var(--color-plan);
  background: rgba(30, 138, 226, 0.12);
}

.form-option select:focus {
  outline: none;
  border-color: var(--color-plan);
  background: rgba(30, 138, 226, 0.15);
  box-shadow: 0 0 0 3px rgba(30, 138, 226, 0.1);
}

.form-option select option {
  background: rgba(0, 0, 0, 0.95);
  color: white;
  padding: 0.5rem;
}

.hint-text {
  color: rgba(255, 255, 255, 0.7);
  display: block;
  margin-bottom: 0.5rem;
  font-style: italic;
  font-size: 0.9rem;
}

.projet-choice {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.projet-choice label {
  background: rgba(30, 138, 226, 0.1);
  padding: 1rem 2rem;
  border-radius: 10px;
  border: 2px solid rgba(30, 138, 226, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  color: white;
}

.projet-choice label:has(input:checked) {
  background: rgba(30, 138, 226, 0.3);
  border-color: var(--color-plan);
}

.projet-choice input[type="radio"] {
  margin-right: 0.5rem;
}

.prix-container {
  background: linear-gradient(135deg, rgba(76, 184, 232, 0.2), rgba(52, 152, 219, 0.2));
  border: 2px solid #4db8e8;
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  text-align: center;
}

.prix-label {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.prix-value {
  color: #4db8e8;
  font-size: 2rem;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.prix-duree {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  margin-top: 0.5rem;
  font-style: italic;
}

/* =====================================================
   FOOTER
   ===================================================== */

.footer {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  padding: 15px 20px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  z-index: 1000;
}

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-content p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.footer-content a {
  color: #1e8ae2;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

.footer-content a:hover {
  color: #4da3ff;
  text-decoration: underline;
}

/* =====================================================
   BOUTON RETOUR EN HAUT
   ===================================================== */

.btn-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-plan), var(--color-pro));
  color: var(--color-text-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 999;
}

.btn-top.visible {
  opacity: 1;
  visibility: visible;
}

.btn-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(30, 138, 226, 0.5);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

/* Extra Large Screens (1920px+) */
@media (min-width: 1920px) {
  .navbar {
    padding: 0.6rem 4rem;
  }
  
  .nav-link {
    font-size: 1rem;
    padding: 0.65rem 1rem;
  }
  
  .dropdown-content a {
    font-size: 0.95rem;
    padding: 0.7rem 1.2rem;
  }
  
  .nav-logo .logo {
    height: 48px;
  }
  
  .nav-menu {
    gap: 0.7rem;
  }
}

/* Large Desktop (1440px - 1919px) */
@media (min-width: 1440px) and (max-width: 1919px) {
  .navbar {
    padding: 0.55rem 3.5rem;
  }
  
  .nav-link {
    font-size: 0.95rem;
    padding: 0.6rem 0.95rem;
  }
  
  .dropdown-content a {
    font-size: 0.9rem;
    padding: 0.68rem 1.15rem;
  }
  
  .nav-logo .logo {
    height: 45px;
  }
  
  .nav-menu {
    gap: 0.6rem;
  }
}

/* Standard Desktop (1200px - 1439px) */
@media (min-width: 1200px) and (max-width: 1439px) {
  .navbar {
    padding: 0.5rem 3rem;
  }
  
  .nav-link {
    font-size: 0.9rem;
    padding: 0.6rem 0.9rem;
  }
  
  .dropdown-content a {
    font-size: 0.85rem;
    padding: 0.65rem 1.1rem;
  }
  
  .nav-logo .logo {
    height: 42px;
  }
  
  .nav-menu {
    gap: 0.5rem;
  }
}

/* Tablet Landscape (1025px - 1199px) */
@media (min-width: 1025px) and (max-width: 1199px) {
  .navbar {
    padding: 0.45rem 2.5rem;
  }
  
  .nav-link {
    font-size: 0.87rem;
    padding: 0.55rem 0.8rem;
  }
  
  .dropdown-content a {
    font-size: 0.82rem;
    padding: 0.6rem 0.95rem;
  }
  
  .nav-logo .logo {
    height: 40px;
  }
  
  .nav-menu {
    gap: 0.4rem;
  }
}

/* Responsive Cartes Formules (en dessous de 1095px) - CARROUSEL DYNAMIQUE */
@media (max-width: 1094px) {
  /* Masquer la grille normale */
  .pricing-grid {
    display: none;
  }
  
  /* Afficher le carrousel */
  .pricing-carousel-container {
    display: block !important;
    width: 100%;
    max-width: 100%;
    position: relative;
    overflow: hidden;
    padding: 40px 0;
  }

  .pricing-carousel {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 450px;
    perspective: 1200px;
    position: relative;
  }

  .pricing-carousel .pricing-card {
    position: absolute;
    width: 280px;
    height: 400px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    overflow: hidden;
    padding: 1.5rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
  }

  /* Positions des cartes dans le carrousel */
  .pricing-carousel .pricing-card.carousel-left {
    transform: translateX(-85%) scale(0.75) !important;
    opacity: 0.5;
    z-index: 1;
    pointer-events: all;
  }

  .pricing-carousel .pricing-card.carousel-center {
    transform: translateX(0) scale(1) !important;
    opacity: 1;
    z-index: 3;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    pointer-events: all;
    background: rgba(0, 0, 0, 1) !important;
  }

  .pricing-carousel .pricing-card.carousel-right {
    transform: translateX(85%) scale(0.75) !important;
    opacity: 0.5;
    z-index: 1;
    pointer-events: all;
  }

  /* Bordures colorées pour chaque type de carte */
  .pricing-carousel .pricing-card.lite-eco {
    border-color: #ffc107;
  }

  .pricing-carousel .pricing-card.standard-card {
    border-color: #28a745;
  }

  .pricing-carousel .pricing-card.featured {
    border-color: var(--color-plan);
  }

  /* Carte centrale plus mise en valeur */
  .pricing-carousel .pricing-card.carousel-center.lite-eco {
    border-color: #ffc107 !important;
    box-shadow: 0 15px 40px rgba(255, 193, 7, 0.4) !important;
  }

  .pricing-carousel .pricing-card.carousel-center.standard-card {
    border-color: #28a745 !important;
    box-shadow: 0 15px 40px rgba(40, 167, 69, 0.4) !important;
  }

  .pricing-carousel .pricing-card.carousel-center.featured {
    border-color: var(--color-plan) !important;
    box-shadow: 0 15px 40px rgba(30, 138, 226, 0.4) !important;
  }

  /* Indicateurs masqués */
  .carousel-indicators {
    display: none;
  }

  /* Animation fade-in */
  @keyframes carouselFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  .pricing-carousel .pricing-card {
    animation: carouselFadeIn 0.5s ease-out;
  }

  /* Ajustement progressif pour écrans larges (871px - 1094px) */
  @media (min-width: 871px) and (max-width: 1094px) {
    .pricing-carousel .pricing-card.carousel-left {
      transform: translateX(-100%) scale(0.75) !important;
    }
    
    .pricing-carousel .pricing-card.carousel-right {
      transform: translateX(100%) scale(0.75) !important;
    }
  }

  /* Ajustement progressif pour écrans moyens-larges (707px - 870px) */
  @media (min-width: 707px) and (max-width: 870px) {
    .pricing-carousel .pricing-card.carousel-left {
      transform: translateX(-85%) scale(0.75) !important;
    }
    
    .pricing-carousel .pricing-card.carousel-right {
      transform: translateX(85%) scale(0.75) !important;
    }
  }

  /* Ajustement pour écrans moyens */
  @media (max-width: 706px) {
    .pricing-carousel .pricing-card.carousel-left {
      transform: translateX(-70%) scale(0.75) !important;
    }
    
    .pricing-carousel .pricing-card.carousel-right {
      transform: translateX(70%) scale(0.75) !important;
    }
  }

  /* Ajustement pour écrans moyens */
  @media (max-width: 610px) {
    .pricing-carousel .pricing-card.carousel-left {
      transform: translateX(-60%) scale(0.75) !important;
    }
    
    .pricing-carousel .pricing-card.carousel-right {
      transform: translateX(60%) scale(0.75) !important;
    }
  }
  
  /* Ajustement pour très petits écrans */
  @media (max-width: 480px) {
    .pricing-carousel .pricing-card {
      width: 240px;
      height: 380px;
    }
    
    .pricing-carousel {
      height: 420px;
    }
    
    .pricing-carousel .pricing-card.carousel-left {
      transform: translateX(-55%) scale(0.7) !important;
    }
    
    .pricing-carousel .pricing-card.carousel-right {
      transform: translateX(55%) scale(0.7) !important;
    }
  }
  
  /* Styles responsive des cartes (sans hover pour éviter conflits) */
  .pricing-carousel .pricing-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }
  
  .pricing-carousel .price {
    font-size: 1.6rem;
    margin-bottom: 0.6rem;
  }
  
  .pricing-carousel .price-label {
    font-size: 0.65rem;
    margin-bottom: 0.2rem;
  }
  
  .pricing-carousel .pricing-card .duration {
    font-size: 0.75rem;
    margin: 0.2rem 0 0.6rem 0;
  }
  
  .pricing-carousel .pricing-card .note {
    font-size: 0.7rem;
    margin: 0.3rem 0;
  }
  
  .pricing-carousel .features-list {
    margin-bottom: 0.4rem;
  }
  
  .pricing-carousel .features-list li {
    font-size: 0.7rem;
    padding: 0.3rem 0;
    line-height: 1.2;
  }
  
  .pricing-carousel .btn-pricing {
    padding: 0.6rem 1rem;
    font-size: 0.75rem;
    margin-top: 0.3rem;
  }
  
  .pricing-carousel .badge {
    font-size: 0.65rem;
    padding: 0.3rem 2.5rem;
  }
  
  .pricing-carousel .price span {
    font-size: 0.75rem;
  }
}


/* Tablet (769px - 1024px) */
@media (max-width: 1024px) {
  .navbar {
    padding: 0.4rem 2rem;
  }
  
  .nav-link {
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
  }
  
  .dropdown-content a {
    font-size: 0.8rem;
    padding: 0.55rem 0.9rem;
  }
  
  .nav-logo .logo {
    height: 38px;
  }
  
  .nav-menu {
    gap: 0.3rem;
  }
  
  .feature-container {
    gap: 3rem;
  }
}

/* Mobile Landscape / Small Tablet (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
  .nav-link {
    font-size: 0.95rem;
    padding: 0.8rem 1rem;
  }
  
  .dropdown-content a {
    font-size: 0.9rem;
  }
}

/* Mobile Portrait (max 768px) */
@media (max-width: 768px) {
  .navbar {
    padding: 0.85rem 1rem;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .nav-logo {
    order: 1;
  }
  
  .mobile-menu-toggle {
    order: 2;
    display: block !important;
    background: transparent;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    margin: 0;
  }
  
  .nav-menu {
    order: 3;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.98);
    flex-direction: column;
    padding: 1rem;
    gap: 0.5rem;
    display: none;
    z-index: 999;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .nav-menu.mobile-open {
    display: flex;
    align-items: center;
  }
  
  .nav-dropdown {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  
  .nav-link {
    padding: 1rem;
    font-size: 1.05rem;
    width: 100%;
    text-align: center !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
  }
  
  .nav-link:hover {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
  }
  
  .nav-link::after {
    display: none;
  }
  
  /* Style pour le dropdown mobile ouvert */
  .nav-dropdown.mobile-dropdown-open .dropdown-content {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    position: relative;
    margin-top: 0.5rem;
    animation: slideDown 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    left: auto;
    transform: none;
    width: 100%;
    box-sizing: border-box;
    text-align: center;
  }
  
  .dropdown-content a {
    text-align: center !important;
    width: 100%;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 0.65rem 1rem;
    box-sizing: border-box;
  }
  
  .hero-section {
    padding: 6rem 1rem 3rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
  }
  
  .feature-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  /* Inverser l'ordre sur mobile: contenu d'abord, image après */
  .feature-left .feature-container,
  .feature-right .feature-container {
    display: flex;
    flex-direction: column;
  }
  
  .feature-left .feature-content,
  .feature-right .feature-content {
    order: 1;
  }
  
  .feature-left .feature-image,
  .feature-right .feature-image {
    order: 2;
  }
  
  .feature-section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  /* Réduire la section évaluation sur mobile */
  .evaluation-container {
    padding: 1.5rem 1rem;
  }
  
  .evaluation-container h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
  }
  
  .evaluation-container p {
    font-size: 0.9rem;
    margin-bottom: 1rem;
  }
  
  .evaluation-form label {
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
  }
  
  .evaluation-form input {
    padding: 0.6rem;
    font-size: 0.9rem;
  }
  
  .btn-calculate {
    padding: 0.8rem 1.5rem;
    font-size: 0.95rem;
  }
  
  .resultat-item h4 {
    font-size: 0.85rem;
  }
  
  .resultat-item .value {
    font-size: 1.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
  
  .resultat-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .evaluation-form-2cols {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
  
  /* Formulaire de souscription: champs pleine largeur sur mobile */
  .form-grid {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
  
  .form-grid input,
  .form-grid select {
    width: 100%;
  }
  
  /* Titre "À propos": retour à la ligne sur mobile */
  .break-mobile {
    display: block;
  }
  
  .about-text h3 {
    text-align: center;
  }
  
  .about-values {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* Small Mobile (361px - 480px) */
@media (min-width: 361px) and (max-width: 480px) {
  .nav-link {
    font-size: 1rem;
    padding: 0.9rem;
  }
  
  .dropdown-content a {
    font-size: 0.95rem;
  }
}

/* Very Small Mobile (max 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .evaluation-container,
  .contact-form,
  .subscription-form {
    padding: 1.5rem;
  }
  
  .pricing-card {
    padding: 1.5rem;
  }
  
  .btn-top {
    width: 45px;
    height: 45px;
    bottom: 1rem;
    right: 1rem;
  }
  
  .navbar {
    padding: 0.7rem 0.85rem;
  }
  
  .nav-logo .logo {
    height: 40px;
  }
  
  .nav-link {
    font-size: 0.95rem;
    padding: 0.85rem;
  }
  
  .dropdown-content a {
    font-size: 0.9rem;
    padding: 0.65rem 1rem;
  }
  
  .hero-description {
    font-size: 0.95rem;
    padding: 1rem;
  }
}

/* Extra Small Mobile (max 360px) */
@media (max-width: 360px) {
  .navbar {
    padding: 0.65rem 0.75rem;
  }
  
  .nav-logo .logo {
    height: 36px;
  }
  
  .nav-link {
    font-size: 0.9rem;
    padding: 0.8rem;
  }
  
  .dropdown-content a {
    font-size: 0.85rem;
    padding: 0.6rem 0.9rem;
  }
  
  .mobile-menu-toggle {
    font-size: 1.75rem;
  }
}

/* =====================================================
   ANIMATIONS SUPPLÉMENTAIRES
   ===================================================== */

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

.feature-image:hover img {
  animation: float 3s ease-in-out infinite;
}

/* =====================================================
   DARK MODE SUPPORT (optionnel)
   ===================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-dark: rgba(0, 0, 0, 0.95);
    --color-bg-light: rgba(255, 255, 255, 0.03);
  }
}

/* =====================================================
   FLIP CARD SYSTEM - Cartes pivotantes 3D
   ===================================================== */

.card-flip-container {
  perspective: 1200px;
  max-width: 450px;
  margin: 0 auto;
  min-height: 480px;
}

.card-flip {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.4, 0.0, 0.2, 1);
  transform-style: preserve-3d;
}

.card-flip.flipped {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.card-front {
  transform: rotateY(0deg);
}

.card-back {
  transform: rotateY(180deg);
}

/* =====================================================
   BADGES - Étiquettes stylisées (login cards)
   ===================================================== */

.card-flip .badge {
  position: absolute;
  top: 20px;
  right: -5px;
  padding: 8px 20px;
  font-size: 0.85em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: white;
  transform: rotate(0deg);
  z-index: 10;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border-radius: 4px 0 0 4px;
}

.card-flip .badge-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card-flip .badge-secondary {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* =====================================================
   LOGIN CARD - Carte de connexion (avant)
   ===================================================== */

.login-card {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  padding: 2.5rem 2rem;
  border-radius: 16px;
  border: 2px solid #667eea;
  position: relative;
  box-shadow: 0 8px 32px rgba(102, 126, 234, 0.3);
  overflow: hidden;
  transition: all 0.3s ease;
}

.login-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, 
    #667eea 0%, 
    #764ba2 50%, 
    #667eea 100%
  );
  border-radius: 16px 16px 0 0;
}

.card-title {
  font-size: 1.5rem;
  font-family: 'Segoe UI', 'Roboto', 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
  text-align: center;
  margin: 0 0 25px 0;
  text-transform: capitalize;
}

.forgot-password-link {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.3);
  border-radius: 8px;
  color: #6c63ff;
  font-size: 0.9em;
  cursor: pointer;
  transition: all 0.3s ease;
}

.forgot-password-link:hover {
  background: rgba(108, 99, 255, 0.2);
  transform: translateY(-2px);
}

.version-display {
  margin-top: 20px;
  text-align: center;
  font-size: 0.85em;
  opacity: 0.7;
  color: #fff;
}

/* =====================================================
   RESET CARD - Carte de réinitialisation (arrière)
   ===================================================== */

.reset-card {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  padding: 1.5rem;
  border-radius: 16px;
  border: 2px solid #f5576c;
  position: relative;
  box-shadow: 0 8px 32px rgba(245, 87, 108, 0.3);
  min-height: 450px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.reset-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(245, 87, 108, 0.4);
}

.reset-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, 
    #f5576c 0%, 
    #ff4757 50%, 
    #f5576c 100%
  );
  border-radius: 16px 16px 0 0;
}

.reset-subtitle {
  color: #fff;
  font-size: 1.1em;
  margin-bottom: 20px;
  font-weight: 500;
}

.reset-input-group {
  margin-bottom: 15px;
}

.password-input-group {
  position: relative;
}

.password-input-group .reset-input {
  padding-right: 50px;
}

.password-input-group i {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4em;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: color 0.3s ease;
}

.password-input-group i:hover {
  color: #fff;
}

.reset-input {
  width: 100%;
  height: 50px;
  padding: 0 20px;
  font-size: 0.95em;
  border: 2px solid rgba(245, 87, 108, 0.3);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  outline: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.reset-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.reset-input:focus {
  border-color: #f5576c;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.1);
}

.code-input {
  text-align: center;
  letter-spacing: 5px;
  font-weight: 600;
  border-color: rgba(76, 175, 80, 0.4);
}

.reset-second-step {
  display: none;
  margin-top: 25px;
  padding-top: 25px;
  border-top: 1px solid rgba(245, 87, 108, 0.2);
}

.reset-btn {
  width: 100%;
  height: 50px;
  border: none;
  border-radius: 10px;
  font-size: 1em;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 10px;
}

.reset-btn-primary {
  background: linear-gradient(135deg, #f5576c, #ff4757);
  color: white;
  box-shadow: 0 4px 15px rgba(245, 87, 108, 0.3);
}

.reset-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 87, 108, 0.4);
}

.reset-btn-success {
  background: linear-gradient(135deg, #4caf50, #45a049);
  color: white;
  box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.reset-btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

/* Responsive pour les cartes */
@media (max-width: 768px) {
  .card-flip-container {
    max-width: 100%;
    padding: 0 1rem;
    min-height: 500px;
  }
  
  .login-card,
  .reset-card {
    padding: 1.5rem;
  }
  
  .card-title {
    font-size: 1.3rem;
  }
  
  .reset-input {
    height: 45px;
    font-size: 0.9em;
  }
  
  .reset-btn {
    height: 45px;
    font-size: 0.95em;
  }
}

/* =====================================================
   PRINT STYLES
   ===================================================== */

@media print {
  .navbar,
  .btn-top,
  .scroll-progress {
    display: none !important;
  }
  
  .hero-section,
  .feature-section,
  .pricing-section,
  .about-section,
  .contact-section,
  .subscription-section {
    page-break-inside: avoid;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* =====================================================
   FOCUS VISIBLE - ACCESSIBILITÉ
   ===================================================== */

*:focus-visible {
  outline: 3px solid var(--color-plan);
  outline-offset: 2px;
}

/* =====================================================
   SÉLECTION DE TEXTE PERSONNALISÉE
   ===================================================== */

::selection {
  background: var(--color-plan);
  color: white;
}

::-moz-selection {
  background: var(--color-plan);
  color: white;
}

/* =====================================================
   SCROLLBAR PERSONNALISÉE (Webkit)
   ===================================================== */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--color-plan), var(--color-pro));
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-plan);
}

/* =====================================================
   LOADING SPINNER (optionnel pour forms)
   ===================================================== */

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spinner 0.8s linear infinite;
}

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

/* =====================================================
   NOTIFICATION DE SUCCÈS POUR SOUSCRIPTION
   ===================================================== */

.notification-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.notification-overlay.show {
  opacity: 1;
}

.success-notification {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: 2rem 3rem;
  border-radius: 15px;
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  transform: scale(0.5) translateY(-50px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  z-index: 10001;
  max-width: 90%;
}

.success-notification.show {
  transform: scale(1) translateY(0);
  opacity: 1;
}

@media (max-width: 768px) {
  .success-notification {
    font-size: 1.2rem;
    padding: 1.5rem 2rem;
  }
}