/* ==========================================================================
   COLLECTIF DU CHENE VERT - PORTAIL INSTITUTIONNEL LOI 1901
   Feuille de style principale (style.css)
   Conforme aux normes d'accessibilité et de performance sans framework externe
   ========================================================================== */

:root {
  --color-primary: #002366;       /* Royal Blue institutionnel */
  --color-primary-dark: #001744;  /* Bleu marine profond */
  --color-primary-light: #0d388f; /* Bleu d'accent */
  --color-accent: #FFD700;        /* Deep Gold patrimonial */
  --color-accent-hover: #e6c200;  /* Or ambré */
  --color-bg: #FFFFFF;            /* Blanc immaculé */
  --color-bg-alt: #F4F6F9;        /* Gris institutionnel clair */
  --color-bg-card: #FFFFFF;       /* Fond des blocs de contenu */
  --color-border: #E2E8F0;        /* Gris de délimitation */
  --color-border-dark: #CBD5E0;   /* Bordure accentuée */
  --color-text: #2D3748;          /* Texte principal haute lisibilité */
  --color-text-muted: #4A5568;    /* Texte secondaire informatif */
  --color-text-light: #718096;    /* Métadonnées */
  --color-footer-bg: #1A202C;     /* Fond pied de page sombre réglementaire */
  --color-footer-text: #E2E8F0;   /* Typographie claire pied de page */
  --color-tag-bg: #EBF8FF;        /* Fond étiquette statutaire */
  --color-tag-text: #2B6CB0;      /* Texte étiquette statutaire */
  --color-success: #276749;       /* Vert préservation */
  --color-success-bg: #F0FFF4;    /* Fond vert léger */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1240px;
  --transition-speed: 0.2s;
}

/* Reset universel et boîte de dimensionnement */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* Typographie standardisée */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; border-bottom: 2px solid var(--color-accent); padding-bottom: 0.5rem; margin-top: 1.5rem; }
h3 { font-size: 1.35rem; margin-top: 1.25rem; }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--color-text);
  line-height: 1.65;
}

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

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

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

/* ==========================================================================
   EN-TÊTE ET SYSTÈME DE NAVIGATION (HEADER)
   ========================================================================== */

/* Ligne 1 : Bandeau utilitaire institutionnel */
.utility-strip {
  background-color: var(--color-bg-alt);
  color: #333333;
  height: 42px;
  padding: 0 20px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.utility-strip .utility-container {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.utility-rna {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.utility-rna span.badge {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 2px 8px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.utility-tools {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.search-simulation {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 3px 10px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.search-simulation input {
  border: none;
  outline: none;
  font-size: 0.8125rem;
  width: 140px;
  color: var(--color-text);
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
}

.lang-selector span.active {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-accent);
}

/* Ligne 2 : Barre de navigation principale */
.main-header {
  background-color: #FFFFFF;
  border-bottom: 3px solid var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: relative;
  z-index: 1000;
}

.main-header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

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

.brand-identity .site-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  text-decoration: none;
}

.brand-identity .site-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* Mega-Menu Navigation Desktop */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.5rem;
  height: 100%;
}

.nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-height: 44px;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

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

.nav-link .dropdown-arrow {
  font-size: 0.65rem;
  transition: transform var(--transition-speed) ease;
}

.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* Boîtes déroulantes du Mega-Menu */
.mega-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 320px;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  box-shadow: 0 10px 25px rgba(0, 35, 102, 0.12);
  display: none;
  flex-direction: column;
  padding: 12px 0;
  z-index: 1001;
}

.nav-item:hover .mega-dropdown {
  display: flex;
}

.mega-dropdown a {
  padding: 10px 20px;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  min-height: 44px;
  border-left: 3px solid transparent;
  transition: all var(--transition-speed) ease;
}

.mega-dropdown a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  border-left-color: var(--color-accent);
  text-decoration: none;
  padding-left: 24px;
}

/* Bouton d'action institutionnel En-tête */
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: #FFFFFF !important;
  font-weight: 700;
  font-size: 0.9375rem;
  padding: 10px 22px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 2px solid var(--color-primary);
  min-height: 44px;
  min-width: 44px;
  transition: all var(--transition-speed) ease;
  white-space: nowrap;
}

.header-cta:hover {
  background-color: var(--color-accent);
  color: var(--color-primary-dark) !important;
  border-color: var(--color-accent);
  text-decoration: none;
}

/* Bouton Burger Mobile */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  font-size: 1.25rem;
  color: var(--color-primary);
}

/* ==========================================================================
   STRUCTURE GÉNÉRALE ET GRILLE PRINCIPALE (TWO-COLUMN BLUEPRINT)
   ========================================================================== */

.page-wrapper {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 30px 20px 60px 20px;
  width: 100%;
}

.layout-two-column {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 40px;
  align-items: start;
}

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

.side-rail {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* Bannière Héro Institutionnelle */
.hero-frame {
  background-color: var(--color-bg-alt);
  border-left: 5px solid var(--color-primary);
  padding: 35px 30px;
  margin-bottom: 35px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.hero-frame h1 {
  color: var(--color-primary);
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.hero-statement-summary {
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--color-primary-dark);
  margin-bottom: 15px;
  background: #FFFFFF;
  padding: 16px 20px;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
}

.funding-declaration {
  background-color: var(--color-success-bg);
  border: 1px solid #C6F6D5;
  color: #22543D;
  padding: 14px 18px;
  font-size: 0.95rem;
  margin-top: 15px;
  font-weight: 500;
}

/* Bloc d'image hero */
.hero-media-wrapper {
  margin: 25px 0;
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 35, 102, 0.08);
}

.hero-media-wrapper img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
}

/* Side-rail Modules : Chiffres Clés & Faits Institutionnels */
.side-card {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  padding: 24px 20px;
}

.side-card h3 {
  margin-top: 0;
  font-size: 1.15rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
  margin-bottom: 15px;
}

.key-metrics-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.admin-fact-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.admin-fact-table td {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

.admin-fact-table td.label {
  font-weight: 600;
  color: var(--color-primary-dark);
  width: 45%;
}

.admin-fact-table td.value {
  color: var(--color-text);
  font-family: monospace;
}

/* Catalogues et Grilles d'activités */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin: 30px 0;
}

.catalog-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.catalog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 35, 102, 0.08);
}

.catalog-card-image {
  overflow: hidden;
  height: 200px;
  background-color: var(--color-bg-alt);
}

.catalog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.status-badge {
  display: inline-block;
  align-self: flex-start;
  background-color: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.status-badge.live {
  background-color: #FEFCBF;
  color: #744210;
  border: 1px solid #FAF089;
}

.catalog-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.catalog-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  flex: 1;
}

/* Boutons d'engagement non commerciaux */
.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: #FFFFFF !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 2px solid var(--color-primary);
  min-height: 44px;
  min-width: 44px;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  margin-top: 12px;
  align-self: flex-start;
}

.btn-action:hover {
  background-color: var(--color-accent);
  color: var(--color-primary-dark) !important;
  border-color: var(--color-accent);
  text-decoration: none;
}

.btn-action.secondary {
  background-color: transparent;
  color: var(--color-primary) !important;
  border-color: var(--color-primary);
}

.btn-action.secondary:hover {
  background-color: var(--color-primary);
  color: #FFFFFF !important;
}

/* Tableaux financiers et comptables */
.financial-table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  font-size: 0.95rem;
}

.financial-table th, .financial-table td {
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--color-border);
}

.financial-table th {
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

.financial-table tr:nth-child(even) {
  background-color: var(--color-bg-alt);
}

.financial-table td.amount {
  text-align: right;
  font-family: monospace;
  font-weight: 700;
}

.financial-table tfoot td {
  font-weight: 800;
  background-color: #EDF2F7;
  border-top: 2px solid var(--color-primary);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 6px;
  color: var(--color-primary-dark);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border-dark);
  background-color: #FFFFFF;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  min-height: 44px;
  transition: border-color var(--transition-speed) ease;
}

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

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  margin-top: 15px;
}

.form-checkbox input[type="checkbox"] {
  min-width: 20px;
  min-height: 20px;
  margin-top: 2px;
}

/* Fil d'Ariane institutionnel */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
  list-style: none;
}

.breadcrumb a {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: var(--color-border-dark);
}

/* Boîte d'alerte et avis statutaire */
.notice-box {
  background-color: #FEFCBF;
  border-left: 4px solid #D69E2E;
  padding: 18px 22px;
  margin: 25px 0;
  color: #744210;
}

.notice-box h4 {
  color: #744210;
  margin-bottom: 6px;
}

.notice-box p {
  margin-bottom: 0;
}

/* ==========================================================================
   PIED DE PAGE ÉLARGI (FOOTER CONFORME LOI 1901)
   ========================================================================== */

.main-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  margin-top: auto;
  border-top: 4px solid var(--color-accent);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 50px 20px 30px 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 35px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--color-accent);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  border-bottom: 1px solid #2D3748;
  padding-bottom: 8px;
}

.footer-col p {
  color: #A0AEC0;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  color: #CBD5E0;
  font-size: 0.9rem;
  display: inline-block;
  min-height: 32px;
  line-height: 32px;
  transition: color var(--transition-speed) ease, padding-left var(--transition-speed) ease;
}

.footer-col ul a:hover {
  color: var(--color-accent);
  text-decoration: none;
  padding-left: 4px;
}

.footer-legal-base {
  border-top: 1px solid #2D3748;
  padding-top: 25px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #718096;
}

.footer-legal-base p {
  margin-bottom: 10px;
  color: #A0AEC0;
}

/* ==========================================================================
   BREAKPOINTS RESPONSIVES MOBILES ET TABLETTES (992px et 768px)
   ========================================================================== */

@media (max-width: 992px) {
  .layout-two-column {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .nav-menu {
    gap: 0.25rem;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 0.85rem;
  }
}

@media (max-width: 768px) {
  .utility-strip {
    height: auto;
    padding: 8px 16px;
  }

  .utility-strip .utility-container {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }

  .utility-tools {
    gap: 10px;
  }

  .search-simulation {
    display: none;
  }

  .main-header-container {
    height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
  }

  .mobile-toggle {
    display: block;
  }

  /* Navigation mobile empilée et repliable */
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    margin-top: 15px;
    border-top: 1px solid var(--color-border);
    padding-top: 10px;
  }

  .nav-menu.is-active {
    display: flex;
  }

  .nav-item {
    flex-direction: column;
    align-items: stretch;
    height: auto;
  }

  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 12px 16px;
    background-color: var(--color-bg-alt);
    margin-bottom: 4px;
  }

  .mega-dropdown {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    border-left: 3px solid var(--color-accent);
    padding-left: 10px;
    margin-bottom: 8px;
    background: #FAFAFA;
  }

  .nav-item:hover .mega-dropdown,
  .nav-item.open .mega-dropdown {
    display: flex;
  }

  .header-cta {
    display: none; /* Le lien contact reste accessible dans le menu */
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .hero-frame h1 {
    font-size: 1.65rem;
  }

  .page-wrapper {
    padding: 20px 14px 40px 14px;
  }
}