/* Design System Apple - Étude de marché DAF La Réunion */

:root {
  /* Couleurs Apple */
  --apple-blue: #007AFF;
  --apple-blue-dark: #0051D5;
  --apple-gray-1: #F2F2F7;
  --apple-gray-2: #E5E5EA;
  --apple-gray-3: #D1D1D6;
  --apple-gray-4: #C7C7CC;
  --apple-gray-5: #AEAEB2;
  --apple-gray-6: #8E8E93;
  --apple-text-primary: #000000;
  --apple-text-secondary: #3C3C43;
  --apple-text-tertiary: #3C3C4399;
  --apple-background: #FFFFFF;
  --apple-surface: #F8F9FA;
  --apple-green: #34C759;
  --apple-orange: #FF9500;
  --apple-red: #FF3B30;
  --apple-purple: #AF52DE;
  
  /* Typographie Apple */
  --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Espacements */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  /* Rayons de bordure */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  /* Ombres */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --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);
}

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

body {
  font-family: var(--font-system);
  background: var(--apple-background);
  color: var(--apple-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation Apple Style */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(248, 249, 250, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--apple-gray-2);
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--apple-text-primary);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--apple-text-secondary);
  text-decoration: none;
  font-weight: 400;
  transition: color 0.3s ease;
  cursor: pointer;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--apple-blue);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--apple-surface) 0%, var(--apple-background) 100%);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  margin-top: 80px;
}

.hero-content {
  max-width: 800px;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--apple-text-primary) 0%, var(--apple-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--apple-text-secondary);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--apple-blue);
  color: white;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

.cta-button:hover {
  background: var(--apple-blue-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Sections */
.section {
  padding: var(--spacing-3xl) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--apple-text-primary);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--apple-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Cards Apple Style */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.card {
  background: var(--apple-background);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--apple-gray-2);
  transition: all 0.3s ease;
  cursor: pointer;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--apple-blue);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--apple-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
  color: white;
}

.card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--apple-text-primary);
}

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

/* Statistiques */
.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--apple-surface);
  border-radius: var(--radius-lg);
  transition: transform 0.3s ease;
}

.stat-item:hover {
  transform: scale(1.05);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--apple-blue);
  display: block;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: 1rem;
  color: var(--apple-text-secondary);
  font-weight: 500;
}

/* Graphiques */
.chart-container {
  background: var(--apple-background);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin: var(--spacing-lg) 0;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--apple-gray-2);
  position: relative;
  height: 400px;
  width: 100%;
}

.chart-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--apple-text-primary);
}

.chart-container canvas {
  max-width: 100% !important;
  height: auto !important;
  max-height: 350px !important;
}

/* Boutons interactifs */
.filter-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--apple-gray-3);
  background: var(--apple-background);
  color: var(--apple-text-secondary);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--apple-blue);
  color: white;
  border-color: var(--apple-blue);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.animate-fade-in {
  animation: fadeInUp 0.8s ease-out;
}

.animate-slide-left {
  animation: slideInLeft 0.8s ease-out;
}

.animate-slide-right {
  animation: slideInRight 0.8s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .filter-buttons {
    justify-content: flex-start;
  }
  
  .chart-container {
    height: 300px;
    padding: var(--spacing-md);
  }
  
  .chart-container canvas {
    max-height: 250px !important;
  }
}

@media (max-width: 480px) {
  .chart-container {
    height: 250px;
    padding: var(--spacing-sm);
  }
  
  .chart-container canvas {
    max-height: 200px !important;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
}

/* Couleurs spécifiques aux données */
.color-primary { color: var(--apple-blue); }
.color-success { color: var(--apple-green); }
.color-warning { color: var(--apple-orange); }
.color-danger { color: var(--apple-red); }
.color-purple { color: var(--apple-purple); }

.bg-primary { background-color: var(--apple-blue); }
.bg-success { background-color: var(--apple-green); }
.bg-warning { background-color: var(--apple-orange); }
.bg-danger { background-color: var(--apple-red); }
.bg-purple { background-color: var(--apple-purple); }

/* Utilitaires */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Transitions fluides */
.transition {
  transition: all 0.3s ease;
}

/* Modal de connexion */
.login-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: fadeIn 0.5s ease-out;
}

.login-container {
  background: var(--apple-background);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--apple-gray-2);
  animation: slideUp 0.5s ease-out;
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--apple-text-primary);
}

.login-header p {
  color: var(--apple-text-secondary);
  line-height: 1.5;
}

.login-form {
  margin-bottom: var(--spacing-xl);
}

.input-group {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.input-group input {
  flex: 1;
  padding: var(--spacing-md);
  border: 1px solid var(--apple-gray-3);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-system);
  background: var(--apple-surface);
  transition: all 0.3s ease;
}

.input-group input:focus {
  outline: none;
  border-color: var(--apple-blue);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.login-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--apple-blue);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-system);
}

.login-btn:hover {
  background: var(--apple-blue-dark);
  transform: translateY(-1px);
}

.login-btn:active {
  transform: translateY(0);
}

.error-message {
  color: var(--apple-red);
  font-size: 0.875rem;
  text-align: center;
  padding: var(--spacing-sm);
  background: rgba(255, 59, 48, 0.1);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 59, 48, 0.2);
}

.login-footer {
  text-align: center;
  color: var(--apple-text-tertiary);
  font-size: 0.875rem;
}

.hidden {
  display: none;
}

.content-hidden {
  display: none;
}

/* Animations pour le modal */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Responsive pour le modal */
@media (max-width: 480px) {
  .login-container {
    padding: var(--spacing-xl);
    margin: var(--spacing-md);
  }
  
  .input-group {
    flex-direction: column;
  }
  
  .login-btn {
    width: 100%;
    justify-content: center;
  }
}

/* Scrollbar personnalisée */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--apple-gray-1);
}

::-webkit-scrollbar-thumb {
  background: var(--apple-gray-4);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--apple-gray-5);
}