/* ============================================
   DESIGN SYSTEM - CLEAN CORPORATE FRANÇAIS
   ============================================ */

:root {
  /* === COLOR SYSTEM === */
  --color-primary: #6B7280;
  --color-secondary: #F3F4F6;
  --color-background: #FFFFFF;
  --color-footer-bg: #374151;
  --color-button: #9CA3AF;
  --color-section-1: #FFFFFF;
  --color-section-2: #F9FAFB;
  --color-section-3: #F3F4F6;
  --color-text-primary: #1F2937;
  --color-text-secondary: #6B7280;
  --color-text-light: #FFFFFF;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;
  
  /* === TYPOGRAPHY === */
  --font-primary: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-secondary: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  
  /* === SPACING SYSTEM === */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* === BORDER RADIUS === */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  
  /* === SHADOWS === */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-primary);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
}

h5 {
  font-size: 1.125rem;
  font-weight: 500;
}

h6 {
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-text-primary);
}

/* === CONTAINER SYSTEM === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

/* === SECTIONS === */
.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section.section-white {
  background-color: var(--color-section-1);
}

.section.section-light {
  background-color: var(--color-section-2);
}

.section.section-lighter {
  background-color: var(--color-section-3);
}

.section.section-compact {
  padding: var(--spacing-2xl) 0;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  min-height: 2.75rem;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-button);
  color: var(--color-text-light);
  border-color: var(--color-button);
}

.btn-primary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-background);
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.8125rem;
  min-height: 2.25rem;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  min-height: 3.25rem;
}

.btn-block {
  width: 100%;
}

/* === CARDS === */
.card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.15s ease;
  position: relative;
}

.card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
}

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

.card-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.card-body {
  margin-bottom: var(--spacing-lg);
}

.card-footer {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.card-compact {
  padding: var(--spacing-lg);
}

/* === GRID SYSTEM === */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

/* === FORMS === */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
  font-family: var(--font-primary);
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(107, 114, 128, 0.1);
}

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

textarea.form-control {
  min-height: 6.5rem;
  resize: vertical;
}

select.form-control {
  cursor: pointer;
}

.checkbox-group,
.radio-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.checkbox,
.radio {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-primary);
}

/* === NAVIGATION === */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  transition: color 0.15s ease;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
}

/* === HEADER === */
.header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

/* === FOOTER === */
.footer {
  background-color: var(--color-footer-bg);
  color: var(--color-text-light);
  padding: var(--spacing-2xl) 0 var(--spacing-lg) 0;
}

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

.footer-section h4 {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-xs);
}

.footer-section a:hover {
  color: var(--color-text-light);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

/* === UTILITIES === */
.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-text-secondary) !important; }
.text-light { color: var(--color-text-light) !important; }

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

.border { border: 1px solid var(--color-border) !important; }
.border-light { border: 1px solid var(--color-border-light) !important; }
.border-0 { border: none !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-sm { margin-bottom: var(--spacing-sm) !important; }
.mb-md { margin-bottom: var(--spacing-md) !important; }
.mb-lg { margin-bottom: var(--spacing-lg) !important; }
.mb-xl { margin-bottom: var(--spacing-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-sm { margin-top: var(--spacing-sm) !important; }
.mt-md { margin-top: var(--spacing-md) !important; }
.mt-lg { margin-top: var(--spacing-lg) !important; }
.mt-xl { margin-top: var(--spacing-xl) !important; }

.p-0 { padding: 0 !important; }
.p-sm { padding: var(--spacing-sm) !important; }
.p-md { padding: var(--spacing-md) !important; }
.p-lg { padding: var(--spacing-lg) !important; }
.p-xl { padding: var(--spacing-xl) !important; }

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

.flex-column { flex-direction: column !important; }
.align-center { align-items: center !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }

.w-full { width: 100% !important; }
.h-full { height: 100% !important; }

/* === ALERTS === */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.alert-success {
  background-color: #F0FDF4;
  border-color: #BBF7D0;
  color: #166534;
}

.alert-warning {
  background-color: #FFFBEB;
  border-color: #FED7AA;
  color: #92400E;
}

.alert-error {
  background-color: #FEF2F2;
  border-color: #FECACA;
  color: #991B1B;
}

.alert-info {
  background-color: #EFF6FF;
  border-color: #BFDBFE;
  color: #1E40AF;
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.badge-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text-primary);
}

/* === DIVIDERS === */
.divider {
  height: 1px;
  background-color: var(--color-border-light);
  margin: var(--spacing-xl) 0;
}

.divider-vertical {
  width: 1px;
  height: 100%;
  background-color: var(--color-border-light);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .container-fluid {
    padding: 0 var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(1, 1fr);
  }
  
  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .card {
    padding: var(--spacing-md);
  }
}

/* === ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* === FOCUS STYLES === */
*:focus {
  outline: none;
}

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

/* === PRINT STYLES === */
@media print {
  .no-print {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .card {
    border: 1px solid #000 !important;
    box-shadow: none !important;
  }
}

/* === HIGH CONTRAST MODE === */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-text-secondary: #000000;
  }
  
  .card {
    border-width: 2px;
  }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* === DARK MODE SUPPORT === */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #1F2937;
    --color-text-primary: #F9FAFB;
    --color-text-secondary: #D1D5DB;
    --color-border: #374151;
    --color-border-light: #4B5563;
  }
  
  .section.section-light {
    background-color: #111827;
  }
  
  .section.section-lighter {
    background-color: #1F2937;
  }
}


/* 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;
    }
}