/* ==========================================
   VARIABLES CSS - SÉCURISÉ CORPORATE
   ========================================== */
:root {
  /* Palette de couleurs principale */
  --color-primary: #4a7c59;
  --color-secondary: #6b8e7a;
  --color-background: #f8f9fa;
  --color-footer: #2d3748;
  --color-button: #4a7c59;
  --color-white: #ffffff;
  --color-light-gray: #e8f5e8;
  --color-text: #2d3748;
  --color-text-light: #718096;
  --color-border: #e2e8f0;
  
  /* Couleurs d'état */
  --color-success: #38a169;
  --color-error: #e53e3e;
  --color-warning: #d69e2e;
  
  /* Typographie */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Tailles de police */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Espacement */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Bordures */
  --border-width: 1px;
  --border-radius: 0.25rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  
  /* Ombres */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}

/* ==========================================
   RESET ET STYLES DE BASE
   ========================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-primary);
  font-weight: var(--font-weight-normal);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   TYPOGRAPHIE ÉLÉGANTE
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text);
  letter-spacing: -0.025em;
}

h1 {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-5);
}

h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

h4 {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-medium);
}

h5 {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
}

h6 {
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
}

p {
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--color-secondary);
  text-decoration: underline;
  outline: none;
}

ul, ol {
  margin: 0 0 var(--space-4) 0;
  padding-left: var(--space-6);
}

li {
  margin-bottom: var(--space-2);
}

strong, b {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

small {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* ==========================================
   LAYOUT ET CONTENEURS
   ========================================== */
.section {
  padding: var(--space-16) 0;
  position: relative;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  position: relative;
  padding-bottom: var(--space-4);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 2px;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  font-weight: var(--font-weight-normal);
  line-height: 1.7;
}

/* ==========================================
   BOUTONS ÉLÉGANTS
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: var(--border-width) solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-normal);
  user-select: none;
  white-space: nowrap;
  min-height: 44px;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Bouton principal - Vert corporatif */
.btn-primary {
  background-color: var(--color-button);
  border-color: var(--color-button);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Bouton secondaire */
.btn-secondary {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
}

/* Bouton outline */
.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-background);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Bouton sombre pour footer */
.btn-dark {
  background-color: var(--color-footer);
  border-color: var(--color-footer);
  color: var(--color-white);
}

.btn-dark:hover:not(:disabled) {
  background-color: #4a5568;
  border-color: #4a5568;
  color: var(--color-white);
  text-decoration: none;
}

/* Tailles de boutons */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 52px;
}

.btn-block {
  width: 100%;
}

/* ==========================================
   CARTES SOPHISTIQUÉES
   ========================================== */
.card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--space-6);
  border-bottom: var(--border-width) solid var(--color-border);
  background-color: var(--color-background);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: var(--border-width) solid var(--color-border);
  background-color: var(--color-background);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-bottom: 0;
}

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

/* Carte featured avec accent */
.card-featured {
  border: 2px solid var(--color-primary);
  position: relative;
}

.card-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

/* ==========================================
   FORMULAIRES MODERNES
   ========================================== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.1);
}

.form-control::placeholder {
  color: var(--color-text-light);
  opacity: 1;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-3) center;
  background-repeat: no-repeat;
  background-size: 16px 12px;
  padding-right: var(--space-10);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.form-check-input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--color-primary);
}

.form-check-label {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin: 0;
  cursor: pointer;
}

.form-text {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

/* ==========================================
   NAVIGATION ÉLÉGANTE
   ========================================== */
.navbar {
  background-color: var(--color-white);
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--space-4) 0;
  position: relative;
  z-index: 50;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.navbar-brand {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-8);
}

.navbar-nav a {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

.navbar-nav a:hover::after,
.navbar-nav a.active::after {
  width: 100%;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--color-primary);
  text-decoration: none;
}

/* ==========================================
   SECTIONS SPÉCIALES
   ========================================== */
.hero-section {
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-light-gray) 100%);
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(45deg, transparent 0%, rgba(74, 124, 89, 0.03) 100%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-light);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================
   GRILLE ET UTILITAIRES
   ========================================== */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ==========================================
   FOOTER SOPHISTIQUÉ
   ========================================== */
.footer {
  background-color: var(--color-footer);
  color: #e2e8f0;
  padding: var(--space-16) 0 var(--space-8) 0;
  margin-top: var(--space-20);
}

.footer h4 {
  color: var(--color-white);
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
  font-weight: var(--font-weight-semibold);
}

.footer p,
.footer a {
  color: #cbd5e0;
  line-height: 1.7;
}

.footer a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-bottom {
  border-top: 1px solid #4a5568;
  padding-top: var(--space-6);
  text-align: center;
  color: #a0aec0;
}

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

.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-muted { color: var(--color-text-light) !important; }
.text-white { color: var(--color-white) !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-secondary { background-color: var(--color-secondary) !important; }
.bg-light { background-color: var(--color-background) !important; }
.bg-white { background-color: var(--color-white) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-5) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mt-8 { margin-top: var(--space-8) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-1) !important; }
.p-2 { padding: var(--space-2) !important; }
.p-3 { padding: var(--space-3) !important; }
.p-4 { padding: var(--space-4) !important; }
.p-5 { padding: var(--space-5) !important; }
.p-6 { padding: var(--space-6) !important; }
.p-8 { padding: var(--space-8) !important; }

.rounded { border-radius: var(--border-radius) !important; }
.rounded-lg { border-radius: var(--border-radius-lg) !important; }
.rounded-xl { border-radius: var(--border-radius-xl) !important; }

.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --space-20: 4rem;
    --space-16: 3rem;
  }
  
  .container {
    padding: 0 var(--space-3);
  }
  
  .hero-title {
    font-size: var(--text-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-lg);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .section-header {
    margin-bottom: var(--space-8);
  }
  
  .navbar-nav {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding: var(--space-16) 0;
  }
  
  .hero-title {
    font-size: var(--text-3xl);
  }
  
  .card-body,
  .card-header {
    padding: var(--space-4);
  }
  
  .navbar-container {
    flex-direction: column;
    gap: var(--space-4);
  }
}

/* ==========================================
   ÉTATS DE CHARGEMENT ET ANIMATIONS
   ========================================== */
.loading {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  border-top-color: var(--color-primary);
  animation: spin 1s linear infinite;
}

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

/* Focus visible pour l'accessibilité */
.btn:focus-visible,
.form-control:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Amélioration de l'accessibilité */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}