/* ==========================================================================
   STYLE.CSS - 100 % KKO (ASSOCIATION LOI 1901)
   Portail Institutionnel d'Information & d'Utilité Publique
   Palette: Bleu Roi (#002366), Or (#FFD700), Gris Clair (#F4F6F9), Blanc (#FFFFFF)
   ========================================================================== */

/* Variables CSS */
:root {
  --color-primary: #002366;
  --color-primary-dark: #001744;
  --color-primary-light: #0d388f;
  --color-accent: #FFD700;
  --color-accent-hover: #e6c200;
  --color-bg-light: #F4F6F9;
  --color-surface: #FFFFFF;
  --color-text-main: #1F2937;
  --color-text-muted: #4B5563;
  --color-text-subtle: #6B7280;
  --color-border: #E5E7EB;
  --color-border-dark: #CBD5E1;
  --color-success: #15803D;
  --color-tag-bg: #E0E7FF;
  
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-serif: Georgia, Cambria, "Times New Roman", Times, serif;
  
  --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);
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font-family-base);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-main);
  background-color: var(--color-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

/* Typographie Institutionnelle */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.75rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

h3 {
  font-size: 1.35rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1.2rem;
  max-width: 75ch;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color 0.15s ease-in-out;
}

a:hover, a:focus {
  color: var(--color-primary-light);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.section-padding {
  padding-top: 48px;
  padding-bottom: 48px;
}

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

/* ==========================================================================
   DOUBLE-DECKER HEADER SYSTEM
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

/* Row 1: Top Utility Strip */
.top-utility-strip {
  background: var(--color-bg-light);
  color: #333333;
  height: 42px;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  border-bottom: 1px solid var(--color-border);
}

.utility-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.rna-badge {
  font-weight: 600;
  color: var(--color-primary);
  background-color: #E2E8F0;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.utility-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-box-sim {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
}

.search-box-sim input {
  border: none;
  background: transparent;
  font-size: 12px;
  outline: none;
  width: 140px;
  color: var(--color-text-main);
}

.lang-selector {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.lang-selector span.active {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Row 2: Main Navigation Bar */
.main-navigation-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.brand-identity {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-identity:hover {
  text-decoration: none;
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Navigation Links & Dropdowns */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--color-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.nav-link:hover, .nav-link:focus, .nav-item:hover > .nav-link {
  background-color: var(--color-bg-light);
  color: var(--color-primary-dark);
  text-decoration: none;
}

.nav-link.active-tab {
  background-color: #EEF2F6;
  color: var(--color-primary);
}

.dropdown-arrow {
  font-size: 0.65rem;
  margin-left: 2px;
  transition: transform 0.15s ease;
}

/* Hover-Activated Dropdown Menus */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  list-style: none;
  z-index: 9999;
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  display: block;
}

.dropdown-item a {
  display: block;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-main);
  text-decoration: none;
  transition: background-color 0.12s ease, color 0.12s ease;
}

.dropdown-item a:hover,
.dropdown-item a:focus {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
  text-decoration: none;
}

/* Bouton Contact Navigation */
.nav-cta-btn {
  background-color: var(--color-primary);
  color: var(--color-surface) !important;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  border: 2px solid var(--color-primary);
  transition: all 0.15s ease;
}

.nav-cta-btn:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

/* Hamburger pour mobile */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

/* ==========================================================================
   BOUTONS & APPELS À L'ACTION NON-LUCRATIFS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
  border: 2px solid transparent;
  line-height: 1.4;
  text-align: center;
}

.btn:hover {
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
}

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

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-primary-dark);
}

.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-surface);
}

/* ==========================================================================
   GRILLES & COMPOSANTS
   ========================================================================== */

/* Grille Institutionnelle 3fr / 1fr */
.grid-main-sidebar {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 36px;
  align-items: start;
}

.main-column {
  min-width: 0;
}

.side-rail {
  background-color: var(--color-bg-light);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* Hero Section */
.hero-banner-section {
  position: relative;
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding: 56px 0 48px;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-tag {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-accent);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  border: 1px solid rgba(255, 215, 0, 0.4);
}

.hero-title {
  color: #FFFFFF;
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.hero-summary-2sentences {
  font-size: 1.15rem;
  line-height: 1.6;
  color: #F1F5F9;
  margin-bottom: 24px;
  border-left: 4px solid var(--color-accent);
  padding-left: 16px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-media-wrapper {
  margin-top: 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-media-wrapper img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Cadre de Transparence & Financement */
.funding-disclosure-banner {
  background-color: #FEF9C3;
  border: 1px solid #FDE047;
  color: #713F12;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-top: 24px;
  margin-bottom: 28px;
  font-size: 0.95rem;
  line-height: 1.5;
}

.funding-disclosure-banner strong {
  color: #854D0E;
}

/* Cartes & Blocs d'Information */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

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

.card-image-wrap {
  margin: -24px -24px 20px -24px;
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
  overflow: hidden;
}

.card-image-wrap img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.badge-tag {
  display: inline-block;
  background-color: var(--color-tag-bg);
  color: var(--color-primary);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.badge-success {
  background-color: #DCFCE7;
  color: #166534;
}

/* Chiffres Clés dans le Side-Rail */
.stat-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 14px;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 4px;
}

/* Tableaux Institutionnels */
.table-responsive {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.institutional-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.institutional-table th {
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding: 12px 16px;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
}

.institutional-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
}

.institutional-table tr:nth-child(even) {
  background-color: #F8FAFC;
}

.institutional-table tr:hover {
  background-color: #F1F5F9;
}

/* Formulaires */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--color-text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  background-color: #ffffff;
  color: var(--color-text-main);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 35, 102, 0.15);
}

/* Roadmap 3 Étapes */
.roadmap-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 28px 0;
}

.roadmap-step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-weight: 800;
  border-radius: 50%;
  margin-bottom: 12px;
}

/* ==========================================================================
   FOOTER INSTITUTIONNEL
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary-dark);
  color: #CBD5E1;
  padding-top: 56px;
  padding-bottom: 28px;
  border-top: 4px solid var(--color-accent);
  font-size: 0.9rem;
}

.site-footer a {
  color: #E2E8F0;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 16px;
  font-weight: 700;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 8px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.legal-notice-box {
  background-color: rgba(0, 0, 0, 0.25);
  border-left: 3px solid var(--color-accent);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 28px;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #94A3B8;
}

.footer-bottom-strip {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8rem;
  color: #94A3B8;
}

.footer-bottom-links {
  display: flex;
  gap: 18px;
  list-style: none;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES (STRICT RULES)
   ========================================================================== */

@media (max-width: 992px) {
  .grid-main-sidebar {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  
  .roadmap-container {
    grid-template-columns: 1fr;
  }
  
  .nav-menu {
    gap: 2px;
  }
  
  .nav-link {
    padding: 8px 10px;
    font-size: 0.85rem;
  }
}

@media (max-width: 768px) {
  .top-utility-strip {
    flex-direction: column;
    height: auto;
    padding: 8px 16px;
    gap: 6px;
    text-align: center;
  }
  
  .utility-left, .utility-right {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .search-box-sim {
    display: none;
  }
  
  .main-navigation-bar {
    flex-wrap: wrap;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-cta-btn {
    display: none;
  }
  
  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    margin-top: 12px;
    border-top: 1px solid var(--color-border);
    padding-top: 10px;
    gap: 6px;
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    min-height: 44px;
    padding: 12px 14px;
    font-size: 0.95rem;
    justify-content: space-between;
  }
  
  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-light);
    margin: 4px 0 10px 10px;
  }
  
  .nav-item.active .dropdown-menu {
    display: block;
  }
  
  .dropdown-item a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  
  .hero-title {
    font-size: 1.85rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .footer-bottom-strip {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-bottom-links {
    justify-content: center;
    flex-wrap: wrap;
  }
}