/* ============================================
   OPTICARE V6 – DESIGN SYSTEM
   ============================================ */

/* Variables */
:root {
  /* Couleurs */
  --color-primary: #00A693;
  --color-primary-hover: #008B7A;
  --color-primary-light: #E6F7F5;
  --color-secondary: #3FC1AA;

  /* Neutres */
  --color-dark: #1A1A2E;
  --color-dark-medium: #16213E;
  --color-gray-900: #0F3460;
  --color-gray-700: #533483;
  --color-gray-500: #E94560;
  --color-gray-300: #B8B8D1;
  --color-gray-100: #F5F5F7;
  --color-white: #FFFFFF;

  /* Typographie */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;

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

  /* Bordures */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-primary: 0 10px 40px -10px rgba(0, 166, 147, 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Layout */
  --container-max: 1200px;
  --header-height: 80px;
}

/* Reset moderne */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-white);
}

/* Accessibilité */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

/* Typographie */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

em {
  font-style: italic;
  color: var(--color-primary);
}

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

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

.section-alt {
  background-color: var(--color-gray-100);
}

.section-dark {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-medium) 100%);
  color: var(--color-white);
}

.section-dark .section-title,
.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}

.text-center {
  text-align: center;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

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

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

.logo img {
  height: 40px;
  width: auto;
}

/* Navigation */
.main-nav {
  display: none;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-xl);
}

.nav-list a {
  text-decoration: none;
  color: var(--color-gray-900);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-primary);
}

.header-cta {
  display: none;
  align-items: center;
  gap: var(--space-md);
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  position: relative;
  transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  transition: transform var(--transition-fast);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  padding: var(--space-xl);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 999;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu a {
  display: block;
  padding: var(--space-md) 0;
  font-size: 1.25rem;
  color: var(--color-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-gray-100);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 9999;
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-content p {
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
}

/* Sections communes */
.section-header {
  max-width: 640px;
  margin-bottom: var(--space-3xl);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  line-height: 1.7;
}

.section-dark .section-lead {
  color: rgba(255, 255, 255, 0.7);
}

/* Utilitaires icônes */
.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Responsive base */
@media (min-width: 768px) {
  .main-nav {
    display: block;
  }

  .header-cta {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }
}

/* Témoignages — masqués temporairement en attente de contenu */
.testimonials { display: none; }