/* ==========================================================================
   STYLE.CSS - NEO-BRUTALIST EDITORIAL HYBRID
   ASSOCIATION DES AMIS DU MUSÉE DES PAPETERIES CANSON ET MONTGOLFIER (LOI 1901)
   CADRE RÉGLEMENTAIRE 2026 - ARCHITECTURE STRUCTURÉE SANS DÉPENDANCE
   ========================================================================== */

/* Variables fondamentales */
:root {
  --color-bg-main: #F5F5F0;
  --color-canvas-white: #FFFFFF;
  --color-charcoal-ink: #1E293B;
  --color-terracotta: #C2410C;
  --color-terracotta-soft: #FFF7ED;
  --color-forest-ochre: #4D7C0F;
  --color-border-line: #1E293B;
  --color-muted-text: #475569;
  --color-subtle-bg: #F8FAFC;
  --shadow-brutalist: 4px 4px 0px var(--color-charcoal-ink);
  --shadow-brutalist-lg: 6px 6px 0px var(--color-charcoal-ink);
  --shadow-brutalist-sm: 2px 2px 0px var(--color-charcoal-ink);
  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --sidebar-width: 280px;
}

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

html {
  font-size: 16px;
  line-height: 1.65;
  background-color: var(--color-bg-main);
  color: var(--color-charcoal-ink);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  word-wrap: break-word;
  overflow-wrap: break-word;
  background-color: var(--color-bg-main);
}

/* Images universelles */
img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border: 1px solid var(--color-border-line);
}

a {
  color: inherit;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

p {
  margin-bottom: 1.25rem;
  line-height: 1.7;
  color: var(--color-charcoal-ink);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-charcoal-ink);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 3.5vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h3 { font-size: clamp(1.2rem, 1.8vw, 1.45rem); }

/* ==========================================================================
   MASTER LAYOUT GRID (DEUX COLONNES RIGIDES SANS CHEVAUCHEMENT)
   ========================================================================== */
.site-master-grid {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ==========================================================================
   SIDEBAR GAUCHE (HEADER INSTITUTIONNEL VERTICAL)
   ========================================================================== */
.sidebar-framework {
  width: var(--sidebar-width);
  background: var(--color-canvas-white);
  border-right: 2px solid var(--color-border-line);
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
  gap: 25px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}

/* Branding du haut */
.brand-identity {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-bottom: 2px solid var(--color-border-line);
  padding-bottom: 20px;
}

.brand-badge {
  display: inline-block;
  background: var(--color-terracotta);
  color: #FFFFFF;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--color-border-line);
  box-shadow: 2px 2px 0px var(--color-border-line);
  width: fit-content;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-charcoal-ink);
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 0.78rem;
  color: var(--color-muted-text);
  line-height: 1.35;
}

/* Metadata Registry Sub-Card */
.metadata-registry-card {
  background: var(--color-subtle-bg);
  border: 1px solid var(--color-border-line);
  padding: 14px;
  box-shadow: var(--shadow-brutalist-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.75rem;
}

.metadata-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px dashed #CBD5E1;
  padding-bottom: 4px;
}

.metadata-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.metadata-label {
  font-weight: 700;
  color: var(--color-muted-text);
  text-transform: uppercase;
  font-size: 0.68rem;
}

.metadata-value {
  font-weight: 800;
  color: var(--color-charcoal-ink);
}

.metadata-link {
  color: var(--color-terracotta);
  font-weight: 700;
  text-decoration: underline;
}

/* Navigation de l'arbre institutionnel */
.nav-directory-tree {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-category {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-category-title {
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--color-terracotta);
  text-transform: uppercase;
  border-left: 3px solid var(--color-terracotta);
  padding-left: 8px;
  margin-bottom: 4px;
}

.nav-link-item {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 8px 10px;
  border: 1px solid transparent;
  color: var(--color-charcoal-ink);
  line-height: 1.3;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-link-item:hover {
  background: var(--color-subtle-bg);
  border-color: var(--color-border-line);
  box-shadow: var(--shadow-brutalist-sm);
  color: var(--color-terracotta);
}

.nav-link-item.active {
  background: var(--color-charcoal-ink);
  color: #FFFFFF;
  border-color: var(--color-border-line);
  box-shadow: 2px 2px 0px var(--color-terracotta);
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: var(--color-canvas-white);
  border: 2px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  padding: 10px 16px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}

/* ==========================================================================
   CANVAS DE CONTENU PRINCIPAL & MEGA FOOTER
   ========================================================================== */
.main-content-canvas {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  justify-content: space-between;
  background: var(--color-bg-main);
  position: relative;
}

.content-body {
  padding: 40px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

/* ==========================================================================
   COMPOSANTS NÉO-BRUTALISTES & GRILLES
   ========================================================================== */

/* Cartes et panneaux */
.neo-card {
  background: var(--color-canvas-white);
  border: 1px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
  padding: 30px;
  margin-bottom: 30px;
}

.neo-card-accent {
  border-top: 4px solid var(--color-terracotta);
}

.neo-card-forest {
  border-top: 4px solid var(--color-forest-ochre);
}

.neo-card-dark {
  background: var(--color-charcoal-ink);
  color: #FFFFFF;
  border: 1px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
  padding: 30px;
  margin-bottom: 30px;
}

.neo-card-dark h1, .neo-card-dark h2, .neo-card-dark h3, .neo-card-dark p {
  color: #FFFFFF;
}

/* Bannières et Héros */
.hero-editorial-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  background: var(--color-canvas-white);
  border: 2px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist-lg);
  padding: 40px;
  margin-bottom: 40px;
  align-items: center;
}

.hero-editorial-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-lead-summary {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--color-charcoal-ink);
  background: var(--color-terracotta-soft);
  padding: 16px 20px;
  border-left: 4px solid var(--color-terracotta);
  margin-bottom: 8px;
}

.mission-mandatory-block {
  background: #F8FAFC;
  border: 1px solid var(--color-border-line);
  padding: 24px;
  box-shadow: var(--shadow-brutalist);
  margin: 30px 0;
}

.mission-mandatory-block .block-badge {
  font-size: 0.72rem;
  font-weight: 800;
  color: #FFFFFF;
  background: var(--color-charcoal-ink);
  padding: 4px 10px;
  display: inline-block;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mission-mandatory-block p {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--color-charcoal-ink);
  margin: 0;
}

/* Boutons d'Action (Contact Standardisé) */
.btn-cta-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-terracotta);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border: 2px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
  cursor: pointer;
  min-height: 48px;
  min-width: 160px;
  text-align: center;
}

.btn-cta-contact:hover {
  background: #9A3412;
  box-shadow: var(--shadow-brutalist-lg);
  transform: translate(-2px, -2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-canvas-white);
  color: var(--color-charcoal-ink);
  font-weight: 800;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border: 2px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
  cursor: pointer;
  min-height: 48px;
  text-align: center;
}

.btn-secondary:hover {
  background: var(--color-subtle-bg);
  box-shadow: var(--shadow-brutalist-lg);
  transform: translate(-2px, -2px);
}

/* Grilles */
.grid-4-blocks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin: 30px 0;
}

.grid-3-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin: 30px 0;
}

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

.feature-pillar-card {
  background: var(--color-canvas-white);
  border: 1px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.feature-pillar-card img {
  width: 100%;
  height: 220px;
  border: none;
  border-bottom: 1px solid var(--color-border-line);
}

.feature-pillar-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

/* Impact Metrics Strip */
.impact-metrics-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--color-charcoal-ink);
  color: #FFFFFF;
  padding: 30px;
  border: 2px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist-lg);
  margin: 35px 0;
}

.metric-cell {
  border-right: 1px solid #334155;
  padding-right: 15px;
}

.metric-cell:last-child {
  border-right: none;
  padding-right: 0;
}

.metric-number {
  font-size: 2.2rem;
  font-weight: 900;
  color: #FDBA74;
  line-height: 1.1;
  margin-bottom: 6px;
}

.metric-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: #E2E8F0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-desc {
  font-size: 0.78rem;
  color: #94A3B8;
  margin-top: 4px;
}

/* Timeline & Chronologie */
.timeline-matrix {
  border-left: 3px solid var(--color-terracotta);
  padding-left: 24px;
  margin: 30px 0 30px 15px;
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.timeline-milestone {
  position: relative;
  background: var(--color-canvas-white);
  border: 1px solid var(--color-border-line);
  padding: 20px;
  box-shadow: var(--shadow-brutalist-sm);
}

.timeline-milestone::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 20px;
  width: 14px;
  height: 14px;
  background: var(--color-terracotta);
  border: 2px solid var(--color-charcoal-ink);
}

.timeline-year {
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--color-terracotta);
  margin-bottom: 4px;
}

/* Tableaux financiers et administratifs */
.table-responsive-wrapper {
  overflow-x: auto;
  margin: 25px 0;
  border: 1px solid var(--color-border-line);
  box-shadow: var(--shadow-brutalist);
}

.neo-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-canvas-white);
  font-size: 0.9rem;
}

.neo-table th, .neo-table td {
  padding: 14px 18px;
  border-bottom: 1px solid #E2E8F0;
  text-align: left;
}

.neo-table th {
  background: var(--color-charcoal-ink);
  color: #FFFFFF;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.8rem;
}

.neo-table tr:hover {
  background: var(--color-subtle-bg);
}

/* Formulaire Contact & Bénévolat */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-full {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-charcoal-ink);
}

.form-input, .form-textarea, .form-select {
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--color-border-line);
  background: #FFFFFF;
  color: var(--color-charcoal-ink);
  border-radius: 0;
  box-shadow: 2px 2px 0px #CBD5E1;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-terracotta);
  box-shadow: var(--shadow-brutalist-sm);
}

/* ==========================================================================
   MEGA FOOTER ARCHITECTURAL (STABLE CANVAS SANS COUPE)
   ========================================================================== */
.mega-footer {
  background: var(--color-canvas-white);
  border-top: 2px solid var(--color-border-line);
  padding: 60px 40px 40px;
  box-sizing: border-box;
  width: 100%;
  margin-top: 60px;
}

.mega-footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-column-title {
  font-size: 0.85rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-charcoal-ink);
  border-bottom: 2px solid var(--color-terracotta);
  padding-bottom: 8px;
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav-list a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted-text);
  line-height: 1.4;
  padding: 4px 0;
}

.footer-nav-list a:hover {
  color: var(--color-terracotta);
  text-decoration: underline;
}

.footer-contact-item {
  font-size: 0.85rem;
  color: var(--color-charcoal-ink);
  line-height: 1.5;
}

/* Bottom Trust Baseline Block */
.bottom-trust-baseline {
  border-top: 2px solid var(--color-border-line);
  padding-top: 25px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-muted-text);
  line-height: 1.6;
}

.trust-entities {
  font-weight: 800;
  color: var(--color-charcoal-ink);
}

.trust-statement {
  font-style: italic;
  background: var(--color-subtle-bg);
  padding: 10px 14px;
  border-left: 3px solid var(--color-terracotta);
}

.trust-legal-notice {
  font-size: 0.76rem;
  color: #64748B;
}

.trust-legal-notice a {
  color: var(--color-terracotta);
  font-weight: 700;
  text-decoration: underline;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES (COLLAPSE VERTICAL FLUIDE)
   ========================================================================== */
@media (max-width: 1024px) {
  .site-master-grid {
    grid-template-columns: 240px 1fr;
  }
  .sidebar-framework {
    width: 240px;
    padding: 20px 15px;
  }
  .mega-footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  .impact-metrics-matrix {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .metric-cell {
    border-right: none;
    border-bottom: 1px solid #334155;
    padding-bottom: 15px;
  }
  .grid-4-blocks {
    grid-template-columns: 1fr;
  }
  .hero-editorial-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-master-grid {
    display: block;
    width: 100%;
  }
  .sidebar-framework {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 2px solid var(--color-border-line);
    padding: 20px;
  }
  .nav-directory-tree {
    display: none;
  }
  .nav-directory-tree.mobile-open {
    display: flex;
  }
  .mobile-nav-toggle {
    display: inline-block;
    margin-top: 10px;
  }
  .content-body {
    padding: 20px;
  }
  .grid-3-columns {
    grid-template-columns: 1fr;
  }
  .grid-2-columns {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-full {
    grid-column: span 1;
  }
  .mega-footer {
    padding: 40px 20px 20px;
  }
  .mega-footer-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}

@media (max-width: 480px) {
  .content-body {
    padding: 15px 12px;
  }
  .neo-card {
    padding: 20px 15px;
  }
  .impact-metrics-matrix {
    grid-template-columns: 1fr;
    padding: 20px 15px;
  }
  .btn-cta-contact, .btn-secondary {
    width: 100%;
  }
}