/* ==========================================================================
   FREE SNOW GAP - FEUILLE DE STYLE INSTITUTIONNELLE (LOI 1901)
   Couleurs : Bleu Royal (#002366), Or (#FFD700), Gris Clair (#F4F6F9), Blanc (#FFFFFF)
   ========================================================================== */

:root {
  --color-primary: #002366;
  --color-primary-dark: #001744;
  --color-primary-light: #0d388f;
  --color-accent: #FFD700;
  --color-accent-hover: #e6c200;
  --color-accent-dark: #b89700;
  --color-bg-light: #F4F6F9;
  --color-bg-subtle: #edf1f7;
  --color-white: #FFFFFF;
  --color-text-dark: #1f2937;
  --color-text-muted: #4b5563;
  --color-border: #d1d5db;
  --color-border-light: #e5e7eb;
  --color-success: #0d7a46;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: "Georgia", serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --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;
  --container-max: 1200px;
}

/* 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-base);
  color: var(--color-text-dark);
  background-color: var(--color-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

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

/* ==========================================================================
   EN-TÊTE DOUBLE-DECKER (SYSTÈME INSTITUTIONNEL)
   ========================================================================== */

/* Ligne 1 : Bandeau utilitaire supérieur */
.top-utility-bar {
  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-light);
}

.top-utility-left {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 500;
}

.rna-badge {
  background: #e2e8f0;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-weight: 700;
  color: var(--color-primary);
}

.top-utility-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.search-box-sim {
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 12px;
}

.search-box-sim input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 12px;
  width: 130px;
  padding: 4px;
}

.lang-toggle {
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.nav-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  position: relative;
}

/* Identité visuelle & Logo */
.brand-identity {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-crest {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -1px;
  border: 2px solid var(--color-accent);
  flex-shrink: 0;
}

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

.brand-name {
  font-family: var(--font-base);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--color-primary);
  line-height: 1.2;
}

.brand-sub {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* Navigation principale et onglets */
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.2px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover,
.nav-item:hover > .nav-link {
  background: var(--color-bg-light);
  color: var(--color-primary-light);
}

.dropdown-arrow {
  font-size: 9px;
  transition: transform 0.2s ease;
}

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

/* Menus déroulants */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  list-style: none;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item a {
  display: block;
  padding: 11px 18px;
  color: var(--color-text-dark);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
}

.dropdown-item a:hover {
  background: var(--color-bg-light);
  color: var(--color-primary);
  border-left-color: var(--color-accent);
  padding-left: 22px;
}

.header-cta-btn {
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  font-weight: 800 !important;
  font-size: 13.5px;
  padding: 10px 20px;
  border-radius: 20px;
  border: 1px solid #e0be00;
  margin-left: 12px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.header-cta-btn:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 2px 8px rgba(255, 215, 0, 0.4);
}

/* Bouton mobile hamburger */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 18px;
  color: var(--color-primary);
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
}

/* ==========================================================================
   DISPOSITIONS & CONTENUS
   ========================================================================== */

main {
  flex: 1 0 auto;
}

/* Bandeau titre de page */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: 50px 0 45px 0;
  border-bottom: 4px solid var(--color-accent);
  position: relative;
}

.page-header-category {
  display: inline-block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: 34px;
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-white);
}

.page-lead {
  font-size: 17px;
  max-width: 820px;
  color: #e2e8f0;
  line-height: 1.6;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 14px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.status-pill::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
}

/* Grille à 2 colonnes (3fr / 1fr) */
.content-grid-2col {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 36px;
  margin-top: 36px;
  margin-bottom: 50px;
}

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

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

/* Bloc d'alerte et avis statutaire */
.statutory-alert {
  background: #fffbeb;
  border-left: 4px solid var(--color-accent-dark);
  padding: 16px 20px;
  margin-bottom: 28px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: #78350f;
  line-height: 1.55;
}

.statutory-alert strong {
  color: #92400e;
  font-weight: 700;
}

.funding-banner {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin: 30px 0;
}

.funding-banner h3 {
  color: var(--color-primary);
  font-size: 18px;
  margin-bottom: 8px;
  font-family: var(--font-base);
  font-weight: 800;
}

/* Cartes institutionnelles */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 28px 0;
}

.inst-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.inst-card-header {
  border-bottom: 2px solid var(--color-bg-light);
  padding-bottom: 12px;
  margin-bottom: 14px;
}

.inst-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

.inst-card-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  background: #e0e7ff;
  color: var(--color-primary);
  margin-top: 6px;
}

/* Sidebar & Chiffres clés */
.sidebar-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 8px;
  margin-bottom: 16px;
}

.metric-block {
  text-align: center;
  padding: 14px 10px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
  margin-bottom: 12px;
}

.metric-number {
  font-size: 32px;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1.1;
  font-family: var(--font-base);
}

.metric-label {
  font-size: 12.5px;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-top: 4px;
}

.sidebar-link-list {
  list-style: none;
}

.sidebar-link-list li {
  margin-bottom: 10px;
}

.sidebar-link-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
}

.sidebar-link-list a:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Tableaux financiers et de gouvernance */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.institutional-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

.institutional-table th {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 12px 16px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

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

.institutional-table tr:nth-child(even) td {
  background: var(--color-bg-light);
}

.institutional-table tr:hover td {
  background: #eef2ff;
}

.institutional-table tfoot td {
  font-weight: 800;
  background: #e2e8f0;
  color: var(--color-primary);
}

/* Images & médias */
.figure-block {
  margin: 24px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.figure-block img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Boutons d'action */
.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 6px;
  text-align: center;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
}

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

.btn-accent {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 800;
  border-radius: 6px;
  text-align: center;
  border: 1px solid var(--color-accent-hover);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
}

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

/* Formulaire institutionnel */
.inst-form {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin: 24px 0;
}

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

.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 35, 102, 0.1);
}

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

/* ==========================================================================
   PIED DE PAGE (OBLIGATIONS LÉGALES LOI 1901)
   ========================================================================== */

.main-footer {
  background: #001233;
  color: #d1d5db;
  padding-top: 50px;
  padding-bottom: 24px;
  margin-top: auto;
  border-top: 4px solid var(--color-accent);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col-title {
  color: var(--color-white);
  font-size: 15px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 8px;
}

.footer-about p {
  line-height: 1.6;
  margin-bottom: 12px;
  font-size: 13.5px;
  color: #9ca3af;
}

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

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  color: #d1d5db;
  font-size: 13.5px;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 3px;
}

.footer-legal-badge {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 12.5px;
  line-height: 1.55;
  color: #9ca3af;
}

.footer-bottom-notice {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.6;
  color: #9ca3af;
}

/* ==========================================================================
   RESPONSIVITÉ & MOBILE (POINTS DE RUPTURE STRICTS)
   ========================================================================== */

@media (max-width: 992px) {
  .content-grid-2col {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .nav-list {
    gap: 0;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 12.5px;
  }
}

@media (max-width: 768px) {
  .top-utility-bar {
    height: auto;
    padding: 8px 16px;
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }

  .top-utility-right {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-white);
    border-bottom: 3px solid var(--color-primary);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    padding: 16px 0;
    align-items: stretch;
  }

  .main-nav.is-open {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 14px 24px;
    font-size: 15px;
    min-height: 44px;
    border-bottom: 1px solid var(--color-border-light);
    justify-content: space-between;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--color-bg-light);
    padding: 0;
    border-radius: 0;
    display: none;
  }

  .nav-item.is-active .dropdown-menu {
    display: block;
  }

  .dropdown-item a {
    padding: 12px 32px;
    min-height: 44px;
    font-size: 14px;
    border-bottom: 1px solid #e2e8f0;
  }

  .header-cta-btn {
    margin: 14px 20px;
    text-align: center;
    display: block;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .page-title {
    font-size: 26px;
  }

  .page-lead {
    font-size: 15px;
  }
}