/* Style 3 - Design Moderne Inspiré WOW Products */

/* Variables de couleurs modernes et épurées */
:root {
  --pure-white: #ffffff;
  --off-white: #fafafa;
  --light-gray: #f8f9fa;
  --medium-gray: #e9ecef;
  --dark-gray: #6c757d;
  --charcoal: #495057;
  --near-black: #212529;
  --accent-blue: #0d6efd;
  --accent-blue-light: #e7f1ff;
  --accent-blue-hover: #0b5ed7;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-light: #adb5bd;
  --background: #ffffff;
  --card-bg: #ffffff;
  --border-light: #dee2e6;
  --border-medium: #ced4da;
  --shadow-ultra-soft: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-strong: 0 8px 32px rgba(0, 0, 0, 0.12);
  --gradient-subtle: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  --gradient-accent: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  padding-top: 60px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

/* Barre de navigation des thèmes */
.theme-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  padding: 12px 0;
}

.theme-navbar-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 0 20px;
}

.theme-link {
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
  background: var(--card-bg);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  position: relative;
}

.theme-link:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--light-gray);
  transform: translateY(-1px);
}

.theme-link.active {
  background: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-soft);
}

/* Bannière noire */
.banniere-noire {
  background: var(--gradient-subtle);
  color: var(--text-primary);
  padding: 16px 0;
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 1px solid var(--border-light);
}

.nom-guide {
  color: var(--accent-blue);
  font-weight: 600;
}

/* Header et bannière */
.page-header {
  position: relative;
  margin-bottom: 80px;
}

.banniere-container {
  position: relative;
  height: 600px;
  overflow: hidden;
}

.banniere-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.95) contrast(1.05);
}

.banniere-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(13, 110, 253, 0.08) 0%,
    rgba(11, 94, 215, 0.04) 100%
  );
}

.banniere-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-primary);
  max-width: 800px;
  padding: 60px 40px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(30px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-strong);
}

.sous-titre {
  font-size: 24px;
  margin-bottom: 40px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.5;
  letter-spacing: -0.02em;
}

.banniere-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.cta-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent-blue);
  text-transform: none;
  letter-spacing: 0.02em;
}

.cta-arrow {
  font-size: 18px;
  color: var(--accent-blue);
  animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
  0%, 100% { opacity: 0.6; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-4px); }
}

/* Sections générales */
.section-bienvenue,
.section-avantages,
.section-fonctionnement {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 20px;
}

.titre-section {
  font-size: 42px;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: 60px;
  text-align: center;
  text-transform: none;
  letter-spacing: -0.03em;
  position: relative;
}

.titre-section::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 1px;
}

/* Liste des étapes */
.liste-etapes {
  background: var(--light-gray);
  padding: 60px;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-soft);
}

.liste-etapes li {
  margin-bottom: 24px;
  color: var(--text-primary);
  font-weight: 400;
  padding: 24px 32px;
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  box-shadow: var(--shadow-ultra-soft);
  transition: all 0.3s ease;
  font-size: 16px;
  line-height: 1.6;
}

.liste-etapes li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  border-color: var(--accent-blue-light);
}

/* Avantages */
.avantages-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  margin-top: 60px;
}

.avantage-item {
  background: var(--card-bg);
  padding: 40px;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.avantage-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-blue);
}

.avantage-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
  border-color: var(--accent-blue-light);
}

.avantage-item h3 {
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 20px;
  text-transform: none;
  letter-spacing: -0.02em;
}

.avantage-item p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
  font-size: 16px;
}

/* Sections familles */
.section-famille {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 32px;
  margin: 15px;
  display: inline-block;
  width: calc(25% - 30px);
  vertical-align: top;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.section-famille::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-blue);
}

.section-famille:hover {
  border-color: var(--accent-blue-light);
  box-shadow: var(--shadow-strong);
  transform: translateY(-6px);
}

.titre-famille {
  color: var(--text-primary);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 16px;
  text-align: center;
  text-transform: none;
  letter-spacing: -0.02em;
}

.description-famille {
  color: var(--text-secondary);
  font-size: 15px;
  text-align: center;
  line-height: 1.6;
  font-weight: 400;
}

/* Carrousel */
.carrousel-container {
  background: var(--light-gray);
  border-radius: 16px;
  padding: 40px;
  margin: 40px 0;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-soft);
}

.carrousel {
  display: flex;
  gap: 32px;
  overflow-x: auto;
  padding: 32px;
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-soft);
}

.slide {
  min-width: 350px;
  height: 480px;
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
}

.slide:hover {
  border-color: var(--accent-blue-light);
  box-shadow: var(--shadow-strong);
  transform: translateY(-4px);
}

.slide.selected {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px var(--accent-blue-light);
}

.slide img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-light);
}

.slide h4 {
  padding: 28px 28px 20px;
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: -0.02em;
}

.slide-desc {
  padding: 0 28px 28px;
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.6;
}

/* Boutons */
button {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 16px 28px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: none;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-soft);
}

button:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

button.active {
  background: var(--accent-blue-hover);
  box-shadow: var(--shadow-medium);
}

/* Section Prix et Facturation */
.section-prix {
  background: var(--light-gray);
  padding: 60px 40px;
  margin: 60px 0;
  border-radius: 16px;
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.section-prix .titre-section {
  color: var(--text-primary);
  font-size: 42px;
  font-weight: 300;
  margin-bottom: 50px;
  text-align: center;
  position: relative;
  letter-spacing: -0.03em;
}

.section-prix .titre-section::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 1px;
}

.liste-prix {
  max-width: 900px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
}

.liste-prix li {
  background: var(--card-bg);
  margin-bottom: 24px;
  padding: 32px 40px;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-ultra-soft);
  position: relative;
  transition: all 0.3s ease;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
}

.liste-prix li:nth-child(1) {
  border-left: 4px solid var(--accent-blue);
}

.liste-prix li:nth-child(2) {
  border-left: 4px solid var(--accent-blue);
}

.liste-prix li:nth-child(3) {
  border-left: 4px solid var(--accent-blue);
  background: var(--accent-blue-light);
  font-weight: 500;
  text-align: center;
  font-size: 18px;
  color: var(--accent-blue);
}

.liste-prix li:nth-child(4) {
  border-left: 4px solid var(--dark-gray);
  margin-left: 40px;
}

.liste-prix li:nth-child(5) {
  border-left: 4px solid var(--dark-gray);
  margin-left: 40px;
}

.liste-prix li strong {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.liste-prix li:nth-child(1) strong {
  color: var(--accent-blue);
}

.liste-prix li:nth-child(2) strong {
  color: var(--accent-blue);
}

.liste-prix li:nth-child(4) strong {
  color: var(--text-primary);
}

.liste-prix li:nth-child(5) strong {
  color: var(--text-primary);
}

.liste-prix li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  border-color: var(--accent-blue-light);
}

/* Responsive */
@media (max-width: 768px) {
  .section-famille {
    width: calc(50% - 30px);
  }
  
  .avantages-container {
    grid-template-columns: 1fr;
  }
  
  .theme-navbar-content {
    gap: 8px;
  }
  
  .theme-link {
    padding: 6px 12px;
    font-size: 13px;
  }
  
  .titre-section {
    font-size: 32px;
  }
  
  .banniere-content {
    padding: 40px 20px;
    margin: 0 20px;
  }
  
  .sous-titre {
    font-size: 20px;
  }
  
  .section-prix {
    padding: 40px 20px;
  }
  
  .liste-prix li {
    padding: 24px 28px;
  }
}