/* Premium Design System for Mirage Optique */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --primary-color: #0F172A; /* Deep Slate / Obsidian */
  --secondary-color: #6366F1; /* Vibrant Indigo */
  --accent-color: #8B5CF6; /* Purple */
  --background-light: #F8FAFC;
  --text-dark: #1E293B;
  --text-light: #F8FAFC;
  --text-muted: #64748B;
  --card-bg: #FFFFFF;
  
  /* Radii */
  --border-radius-sm: 8px;
  --border-radius: 16px;
  --border-radius-lg: 24px;
  
  /* Shadows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 25px 30px -5px rgba(99, 102, 241, 0.15);
  
  /* Transitions */
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--background-light);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Glassmorphism Navbar */
.navbar {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
  padding: 0.8rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-color);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1.05rem;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--secondary-color);
  transition: var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

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

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--primary-color);
  font-weight: 700;
  line-height: 1.2;
}

/* Hero Section */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at top right, #e0e7ff 0%, var(--background-light) 60%);
  position: relative;
  overflow: hidden;
  padding: 4rem 0;
}

/* Animated background blobs */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  animation: float 10s infinite ease-in-out alternate;
}
.hero::before {
  width: 400px;
  height: 400px;
  background: rgba(99, 102, 241, 0.15);
  top: -100px;
  left: -100px;
}
.hero::after {
  width: 300px;
  height: 300px;
  background: rgba(139, 92, 246, 0.15);
  bottom: 100px;
  right: -50px;
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 50px) scale(1.1); }
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 3rem;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  gap: 10px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  color: white !important;
  box-shadow: 0 10px 20px -10px var(--accent-color);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 25px -10px var(--accent-color);
}

.btn-primary::after { display: none !important; }

.btn-secondary {
  background-color: white;
  color: var(--primary-color) !important;
  border: 1px solid #E2E8F0;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: #F1F5F9;
  transform: translateY(-3px);
  border-color: #CBD5E1;
}
.btn-secondary::after { display: none !important; }

/* AI Search Button (Pulsing) */
.btn-ai {
  background: rgba(99, 102, 241, 0.1);
  color: var(--secondary-color) !important;
  padding: 0.5rem 1.2rem;
  border-radius: 30px;
  border: 1px solid rgba(99, 102, 241, 0.2);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: pulse-border 2s infinite;
}
.btn-ai:hover {
  background: rgba(99, 102, 241, 0.2);
  transform: translateY(-2px);
}
@keyframes pulse-border {
  0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(99, 102, 241, 0); }
  100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

/* Grid */
.montures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
  padding-bottom: 4rem;
}

/* Cards (Montures) */
.monture-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  border: 1px solid #F1F5F9;
  display: flex;
  flex-direction: column;
}

.monture-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: #E0E7FF;
}

.monture-image {
  height: 200px;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow: hidden;
  position: relative;
}

.monture-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.monture-card:hover .monture-image img {
  transform: scale(1.15);
}

.monture-info {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.monture-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.price-client {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 1.1rem;
}

.price-opticien {
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.1rem;
  margin-top: 0.5rem;
  background: rgba(139, 92, 246, 0.1);
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 8px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  margin: 4rem 0;
}

.feature-card {
  background: var(--card-bg);
  padding: 3rem 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid #F1F5F9;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Animations (Intersection Observer Targets) */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay modifiers */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* Footer */
footer {
  background-color: var(--primary-color);
  color: #94A3B8;
  text-align: center;
  padding: 3rem 0;
  margin-top: auto;
  border-top: 1px solid #1E293B;
}

footer p {
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title { font-size: 3rem; }
  .nav-links { gap: 1rem; }
  .btn { padding: 0.8rem 1.5rem; }
  
  .navbar .container {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .montures-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .container {
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.5rem; }
  .hero-subtitle { font-size: 1.1rem; }
  
  .montures-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    font-size: 0.9rem;
    gap: 0.8rem;
  }
  
  .nav-links a {
    padding: 0.4rem 0.8rem;
  }
}