/* ==========================================================================
   ASSOCIATION COURSE DE FOND - FEUILLE DE STYLE OFFICIELLE (LOI 1901)
   Architecture CSS fluide, accessible, sans framework externe.
   Palette : Deep Navy (#0E2335), Vibrant Teal (#00A3E0), Coral Red (#E54838),
             Canvas Off-White (#F4F6F8), Blanc Pur (#FFFFFF), Slate (#1A1A1A).
   ========================================================================== */

:root {
  --color-navy: #0E2335;
  --color-navy-dark: #081622;
  --color-navy-light: #163652;
  --color-teal: #00A3E0;
  --color-teal-hover: #0087ba;
  --color-coral: #E54838;
  --color-coral-hover: #cb3526;
  --color-canvas: #F4F6F8;
  --color-white: #FFFFFF;
  --color-slate: #1A1A1A;
  --color-muted: #556270;
  --color-border: #DDE2E7;
  --color-border-light: #EBF0F5;
  
  --font-heading: 'Montserrat', 'Oswald', Arial, sans-serif;
  --font-body: 'Open Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --shadow-sm: 0 2px 4px rgba(14, 35, 53, 0.06);
  --shadow-md: 0 4px 12px rgba(14, 35, 53, 0.08);
  --shadow-lg: 0 8px 24px rgba(14, 35, 53, 0.12);
  --transition-fast: all 0.2s ease-in-out;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1.0625rem; /* ~17px */
  line-height: 1.65;
  color: var(--color-slate);
  background-color: var(--color-canvas);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

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

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

/* Typographie Institutionnelle */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-navy);
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.85rem; margin-top: 1.5rem; }
h3 { font-size: 1.4rem; margin-top: 1.25rem; }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1.25rem;
  max-width: 75ch;
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

blockquote {
  border-left: 4px solid var(--color-teal);
  padding: 1rem 1.5rem;
  background: var(--color-canvas);
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--color-navy);
}

/* Conteneurs et Alignements */
.site-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main-content {
  flex: 1 0 auto;
}

/* Bandeau Administratif Supérieur */
.utility-strip {
  background-color: var(--color-navy);
  color: #c9d7e3;
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.utility-strip .site-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

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

.utility-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.12);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.utility-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.utility-right a {
  color: #c9d7e3;
}

.utility-right a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.btn-utility-donate {
  background-color: var(--color-coral);
  color: var(--color-white) !important;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.4rem 0.9rem;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
  text-decoration: none !important;
}

.btn-utility-donate:hover {
  background-color: var(--color-coral-hover);
  color: var(--color-white) !important;
}

/* Barre de Navigation Principale */
.main-header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 80px;
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--color-navy);
  letter-spacing: 0.03em;
  line-height: 1.1;
  text-decoration: none !important;
}

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

/* Menu de Navigation */
.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  margin: 0;
  padding: 0;
  gap: 0.25rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-navy);
  padding: 1.25rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none !important;
  transition: var(--transition-fast);
  min-height: 44px;
}

.nav-link:hover, .nav-link:focus, .nav-item:hover > .nav-link {
  color: var(--color-teal);
  background-color: rgba(0, 163, 224, 0.04);
}

/* Menus Déroulants */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  min-width: 240px;
  box-shadow: var(--shadow-lg);
  border-top: 3px solid var(--color-teal);
  border-radius: 0 0 2px 2px;
  list-style: none;
  padding: 0.5rem 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s ease;
  z-index: 1001;
}

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

.dropdown-item a {
  display: block;
  padding: 0.65rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-slate);
  text-decoration: none !important;
  transition: var(--transition-fast);
  border-left: 2px solid transparent;
}

.dropdown-item a:hover {
  background-color: var(--color-canvas);
  color: var(--color-teal);
  border-left-color: var(--color-teal);
  padding-left: 1.5rem;
}

/* Bouton Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 2px solid var(--color-navy);
  color: var(--color-navy);
  padding: 0.5rem 0.75rem;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: 2px;
  min-height: 44px;
  min-width: 44px;
}

/* Boutons et Éléments d'Action */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  padding: 0.75rem 1.5rem;
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none !important;
  border: 2px solid transparent;
  min-height: 44px;
}

.btn-primary {
  background-color: var(--color-teal);
  color: var(--color-white) !important;
}

.btn-primary:hover {
  background-color: var(--color-teal-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-coral {
  background-color: var(--color-coral);
  color: var(--color-white) !important;
}

.btn-coral:hover {
  background-color: var(--color-coral-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-white);
  color: var(--color-white) !important;
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-navy) !important;
}

.btn-outline-navy {
  background: transparent;
  border-color: var(--color-navy);
  color: var(--color-navy) !important;
}

.btn-outline-navy:hover {
  background: var(--color-navy);
  color: var(--color-white) !important;
}

/* Cartes Institutionnelles */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  margin: 2rem 0;
}

.card {
  background: var(--color-white);
  border-radius: 2px;
  border-top: 4px solid var(--color-teal);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem;
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.card-coral {
  border-top-color: var(--color-coral);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-img-wrapper {
  margin: -1.75rem -1.75rem 1.25rem -1.75rem;
  overflow: hidden;
  max-height: 220px;
}

.card-img-wrapper img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card:hover .card-img-wrapper img {
  transform: scale(1.03);
}

.card-tag {
  display: inline-block;
  background-color: rgba(0, 163, 224, 0.1);
  color: var(--color-teal);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  margin-bottom: 0.75rem;
  align-self: flex-start;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-navy);
}

.card-body {
  flex-grow: 1;
  font-size: 0.9375rem;
  color: var(--color-slate);
  margin-bottom: 1.25rem;
}

/* Sections Institutionnelles */
.page-hero {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 3.5rem 0;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  color: var(--color-white);
  font-size: 2.75rem;
  margin-bottom: 1rem;
}

.page-hero-subtitle {
  font-size: 1.25rem;
  color: #d1dfed;
  max-width: 800px;
  line-height: 1.5;
}

.page-section {
  padding: 4rem 0;
}

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

/* Bannière d'Accueil */
.hero-home {
  position: relative;
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 5rem 0 4rem;
  overflow: hidden;
}

.hero-home-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-home h1 {
  color: var(--color-white);
  font-size: 3.25rem;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero-summary-2sentence {
  font-size: 1.25rem;
  line-height: 1.6;
  color: #e5edf5;
  margin-bottom: 2rem;
  font-weight: 400;
  border-left: 4px solid var(--color-teal);
  padding-left: 1.25rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

/* Encart Engagement & Mission Institutionnelle */
.engagement-callout {
  background: var(--color-white);
  border-left: 6px solid var(--color-coral);
  box-shadow: var(--shadow-md);
  padding: 2.25rem;
  border-radius: 2px;
  margin: 3rem 0;
}

.engagement-callout h3 {
  color: var(--color-navy);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.engagement-callout p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-slate);
  margin-bottom: 1rem;
}

.engagement-quote {
  background: var(--color-canvas);
  border-left: 4px solid var(--color-teal);
  padding: 1rem 1.25rem;
  margin-top: 1.25rem;
  font-weight: 600;
  color: var(--color-navy);
}

/* Bannière Turquoise avec Formulaire */
.teal-banner {
  background-color: var(--color-teal);
  color: var(--color-white);
  padding: 3rem 0;
}

.teal-banner h2 {
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.teal-banner p {
  color: rgba(255, 255, 255, 0.9);
}

.teal-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
  margin-top: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.8125rem;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.form-control {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-white);
  color: var(--color-slate);
  min-height: 44px;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.2);
}

/* Section circulaire 5 colonnes */
.circular-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  text-align: center;
  margin: 2.5rem 0;
}

.circular-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.circular-icon-box {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 900;
  font-family: var(--font-heading);
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  border: 3px solid var(--color-teal);
}

.circular-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.circular-desc {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.4;
}

/* Split Grid */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin: 3rem 0;
}

.split-grid-reverse {
  direction: rtl;
}

.split-grid-reverse > * {
  direction: ltr;
}

.split-content h2 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

.split-image-container {
  border-radius: 2px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border-bottom: 4px solid var(--color-teal);
}

/* Tableaux de Données d'Impact et de Finances */
.table-responsive {
  overflow-x: auto;
  margin: 2rem 0;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  border-radius: 2px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th, .data-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.data-table th {
  background-color: var(--color-navy);
  color: var(--color-white);
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
}

.data-table tr:hover td {
  background-color: var(--color-canvas);
}

.badge-statut {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  background: #e1f5fe;
  color: #0277bd;
}

.badge-statut.actif {
  background: #e8f5e9;
  color: #2e7d32;
}

.badge-statut.programme {
  background: #fff3e0;
  color: #ef6c00;
}

/* Pied de Page Principal (Footer) */
.main-footer {
  background-color: var(--color-navy);
  color: #c9d7e3;
  padding-top: 4.5rem;
  margin-top: auto;
  font-size: 0.9375rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1.3fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1.0625rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-teal);
}

.footer-org-name {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
}

.footer-legal-badge {
  display: inline-block;
  background: rgba(0, 163, 224, 0.15);
  color: var(--color-teal);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #c9d7e3;
  text-decoration: none;
  transition: var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--color-teal);
  padding-left: 4px;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 1rem;
}

.newsletter-form input {
  padding: 0.65rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-white);
  border-radius: 2px;
  font-size: 0.875rem;
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--color-teal);
  background: rgba(255, 255, 255, 0.1);
}

.footer-legal-strip {
  background-color: var(--color-navy-dark);
  padding: 1.5rem 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #8fa2b3;
  text-align: center;
}

.footer-legal-strip p {
  max-width: 1100px;
  margin: 0 auto;
}

/* ==========================================================================
   DIRECTIVES RESPONSIVES & MEDIA QUERIES OBLIGATOIRES
   ========================================================================== */

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  
  .circular-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .hero-home h1 {
    font-size: 2.5rem;
  }
  
  .teal-form-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  /* Effondrement obligatoire de toutes les grilles multi-colonnes */
  .card-grid,
  .footer-grid,
  .split-grid,
  .teal-form-grid,
  .circular-grid {
    grid-template-columns: 1fr !important;
  }
  
  .utility-strip .site-container {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .utility-right {
    width: 100%;
    justify-content: space-between;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  /* Menu Mobile en tiroir empilé */
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow-lg);
    border-top: 2px solid var(--color-teal);
    padding: 1rem 0;
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    padding: 0.85rem 1.5rem;
    border-bottom: 1px solid var(--color-border-light);
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-top: none;
    background: var(--color-canvas);
    padding: 0.25rem 0 0.5rem 1.5rem;
    display: none;
  }
  
  .nav-item.open .dropdown-menu {
    display: block;
  }
  
  .hero-home {
    padding: 3rem 0;
  }
  
  .hero-home h1 {
    font-size: 2rem;
  }
  
  .split-grid {
    gap: 1.5rem;
  }
  
  .page-hero h1 {
    font-size: 2rem;
  }
}