/* ==========================================================================
   PORTAIL INSTITUTIONNEL - LA BIBLIO LECTURE ET RENCONTRE (LOI 1901)
   Feuille de style globale et responsive pure CSS (Grid & Flexbox)
   Couleurs : Bleu Royal (#002366), Or (#FFD700), Blanc (#FFFFFF), Gris (#F4F6F9 / #1A202C)
   Année d'exploitation : 2026
   ========================================================================== */

:root {
  --color-primary: #002366;
  --color-primary-dark: #001744;
  --color-primary-light: #0d3b94;
  --color-gold: #FFD700;
  --color-gold-dark: #cca400;
  --color-bg-light: #F4F6F9;
  --color-bg-white: #FFFFFF;
  --color-text-main: #22252A;
  --color-text-muted: #4A5568;
  --color-border: #E2E8F0;
  --color-footer-bg: #1A202C;
  --color-footer-text: #CBD5E0;
  --color-success: #1E7E34;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition-fast: 0.2s ease;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Réinitialisation et Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

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

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

p {
  margin-bottom: 1.25rem;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 1rem;
  font-weight: 700;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; margin-top: 1.5rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

/* Conteneur principal */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ==========================================================================
   EN-TÊTE ET NAVIGATION (HEADER SYSTEM)
   ========================================================================== */

/* Ligne 1 : Bandeau utilitaire */
.top-utility-strip {
  background-color: #F4F6F9;
  color: #333333;
  min-height: 42px;
  padding: 6px 20px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
}

.top-utility-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.official-registration-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #1A202C;
}

.badge-tag {
  background-color: #E2E8F0;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
}

.top-utility-tools {
  display: flex;
  align-items: center;
  gap: 15px;
}

.search-simulation {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
}

.search-simulation input {
  border: none;
  outline: none;
  font-size: 0.8rem;
  width: 180px;
  background: transparent;
  color: var(--color-text-main);
}

.search-simulation button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.lang-selector {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

/* Ligne 2 : Barre de navigation principale */
.main-header {
  background-color: var(--color-bg-white);
  border-bottom: 3px solid var(--color-gold);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.main-nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
}

.brand-identity {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 2px;
}

/* Navigation principale et Mega-Menus */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  min-height: 44px;
  min-width: 44px;
}

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

/* Mega-Menu Dropdowns */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 280px;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  padding: 8px 0;
  z-index: 1001;
}

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

.dropdown-link {
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background-color var(--transition-fast);
  min-height: 44px;
}

.dropdown-link:hover, .dropdown-link:focus {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
  text-decoration: none;
  padding-left: 22px;
}

/* Boutons d'action non-commerciaux */
.btn-cta-nav {
  background-color: var(--color-primary);
  color: #FFFFFF !important;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 2px solid var(--color-primary);
  transition: all var(--transition-fast);
}

.btn-cta-nav:hover, .btn-cta-nav:focus {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-primary-dark) !important;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px;
  cursor: pointer;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

/* ==========================================================================
   STRUCTURE DE MISE EN PAGE PRINCIPALE (GRID TWO-COLUMN BLUEPRINT)
   ========================================================================== */

.page-wrapper {
  padding: 30px 0 60px 0;
}

.two-column-layout {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 30px;
  align-items: start;
}

.main-content-column {
  background: var(--color-bg-white);
  padding: 35px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.side-rail-column {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Cartes de rail latéral (Chiffres Clés, Identité) */
.sidebar-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: 24px;
}

.sidebar-card-header {
  border-bottom: 2px solid var(--color-gold);
  padding-bottom: 10px;
  margin-bottom: 16px;
}

.sidebar-card-header h3 {
  font-size: 1.15rem;
  margin-bottom: 0;
  color: var(--color-primary);
}

.stat-item {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--color-border);
}

.stat-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* Bandeau statutaire officiel et déclaration de non-profit */
.nonprofit-status-banner {
  background: #EBF3FA;
  border-left: 4px solid var(--color-primary);
  padding: 18px 20px;
  margin: 20px 0 30px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.95rem;
  color: #1A365D;
}

.nonprofit-status-banner strong {
  color: var(--color-primary);
  display: block;
  margin-bottom: 4px;
}

.funding-declaration-box {
  background-color: #FFFDF0;
  border: 1px solid #FFE082;
  border-left: 4px solid var(--color-gold-dark);
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.92rem;
  color: #5D4037;
}

/* ==========================================================================
   HERO FRAME ET CARTES D'ACTION
   ========================================================================== */

.hero-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 35px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-section h1 {
  color: #FFFFFF;
  margin-bottom: 15px;
}

.hero-summary-statement {
  font-size: 1.12rem;
  line-height: 1.6;
  color: #E2E8F0;
  margin-bottom: 20px;
  max-width: 900px;
}

.hero-funding-pill {
  display: inline-block;
  background: rgba(255, 215, 0, 0.2);
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

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

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-primary-dark) !important;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  transition: all var(--transition-fast);
  border: 2px solid var(--color-gold);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: transparent;
  color: #FFFFFF !important;
  border: 2px solid #FFFFFF;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  transition: all var(--transition-fast);
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: #FFFFFF;
  color: var(--color-primary) !important;
  text-decoration: none;
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  transition: all var(--transition-fast);
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
  background-color: var(--color-primary);
  color: #FFFFFF !important;
  text-decoration: none;
}

/* Grilles de contenu */
.content-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 30px 0;
}

.content-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 30px 0;
}

.content-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.content-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.content-card-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.content-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}

.content-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.content-card-body {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.content-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.content-card-body p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  flex-grow: 1;
}

/* Tableaux financiers et de conformité */
.financial-table-wrapper {
  overflow-x: auto;
  margin: 25px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.financial-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  text-align: left;
}

.financial-table th {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 12px 16px;
  font-weight: 600;
}

.financial-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.financial-table tr:nth-child(even) td {
  background-color: #FAFAFA;
}

.financial-table tr:hover td {
  background-color: #F0F4F8;
}

.financial-table tfoot td {
  font-weight: 700;
  background-color: #EDF2F7;
  color: var(--color-primary);
  border-top: 2px solid var(--color-primary);
}

/* Formulaires d'engagement et de contact */
.form-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px;
  margin: 25px 0;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.92rem;
  color: var(--color-text-main);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: var(--color-text-main);
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Badges de statut des actions */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

.status-active {
  background-color: #E6F4EA;
  color: #137333;
}

.status-planned {
  background-color: #FEF7E0;
  color: #B06000;
}

/* Roadmap / Chronologie */
.roadmap-timeline {
  position: relative;
  padding-left: 30px;
  margin: 30px 0;
}

.roadmap-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 10px;
  width: 3px;
  background-color: var(--color-primary);
}

.timeline-step {
  position: relative;
  margin-bottom: 30px;
}

.timeline-step::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-gold);
  border: 3px solid var(--color-primary);
}

/* ==========================================================================
   PIED DE PAGE OFFICIEL ET MENTIONS LÉGALES (FOOTER)
   ========================================================================== */

.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 60px 0 30px 0;
  border-top: 4px solid var(--color-gold);
  font-size: 0.9rem;
}

.footer-columns-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 35px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--color-gold);
  padding-bottom: 8px;
  display: inline-block;
}

.footer-col p {
  color: var(--color-footer-text);
  font-size: 0.88rem;
  line-height: 1.6;
}

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

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

.footer-nav-list a {
  color: var(--color-footer-text);
  transition: color var(--transition-fast);
  display: inline-block;
  padding: 2px 0;
}

.footer-nav-list a:hover, .footer-nav-list a:focus {
  color: var(--color-gold);
  text-decoration: none;
  padding-left: 4px;
}

.footer-legal-base {
  border-top: 1px solid #2D3748;
  padding-top: 25px;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #A0AEC0;
  text-align: justify;
}

.footer-legal-base a {
  color: var(--color-gold);
}

/* ==========================================================================
   MEDIA QUERIES RESPONSIVE (BREAKPOINTS 992px & 768px)
   ========================================================================== */

@media (max-width: 992px) {
  .two-column-layout {
    grid-template-columns: 1fr;
  }
  
  .side-rail-column {
    order: 2;
  }
  
  .content-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-columns-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 0.88rem;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 1.85rem; }
  h2 { font-size: 1.45rem; }
  
  .top-utility-content {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .search-simulation input {
    width: 140px;
  }
  
  .main-nav-container {
    flex-wrap: wrap;
  }
  
  .mobile-nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    margin-top: 15px;
    background-color: var(--color-bg-white);
    border-top: 1px solid var(--color-border);
    padding: 10px 0;
    gap: 0;
  }
  
  .nav-menu.is-active {
    display: flex;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    padding: 12px 16px;
    border-bottom: 1px solid #F0F4F8;
    justify-content: space-between;
  }
  
  .dropdown-menu {
    position: static;
    display: none;
    width: 100%;
    box-shadow: none;
    border: none;
    background-color: #F8FAFC;
    padding-left: 15px;
  }
  
  .nav-item.mobile-open .dropdown-menu {
    display: flex;
  }
  
  .btn-cta-nav {
    margin: 10px 16px;
    width: calc(100% - 32px);
  }
  
  .content-grid-3,
  .content-grid-2,
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .hero-section {
    padding: 25px 20px;
  }
  
  .main-content-column {
    padding: 20px 16px;
  }
  
  .footer-columns-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}