/* ==========================================================================
   SOUNDFICTION - PLATEFORME INSTITUTIONNELLE LOI 1901
   Feuille de styles principale (style.css)
   Conforme aux directives d'accessibilité, performance et réactivité mobile
   ========================================================================== */

:root {
  --color-primary: #002366;       /* Bleu Royal Institutionnel */
  --color-primary-dark: #001744;  /* Bleu Nuit Profond */
  --color-primary-light: #0A358C; /* Bleu Éclatant */
  --color-accent: #FFD700;        /* Or Profond d'Apparat */
  --color-accent-hover: #E5C200;  /* Or Chaud */
  --color-bg-light: #F4F6F9;      /* Gris Perle Institutionnel */
  --color-bg-white: #FFFFFF;      /* Blanc Pur */
  --color-text-main: #1A2530;     /* Ardoise Foncée Haute Lisibilité */
  --color-text-muted: #526071;    /* Gris Minéral Médian */
  --color-border: #D7DEE7;        /* Bordure Subtile Structurée */
  --color-border-dark: #B0BECE;   /* Bordure Renforcée */
  --color-success: #1E7E34;       /* Vert Statutaire */
  --color-tag-bg: #EBF2FC;        /* Fond Badges */
  
  --font-heading: 'Cinzel', 'Trajan Pro', 'Georgia', serif;
  --font-body: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', Helvetica, Arial, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --shadow-subtle: 0 2px 8px rgba(0, 35, 102, 0.06);
  --shadow-medium: 0 6px 20px rgba(0, 35, 102, 0.10);
  --shadow-dropdown: 0 12px 28px rgba(0, 35, 102, 0.16);
  
  --container-max: 1200px;
  --transition-standard: all 0.25s ease-in-out;
}

/* --------------------------------------------------------------------------
   RESET & STRUCTURE FONDAMENTALE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
}

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

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

/* --------------------------------------------------------------------------
   TYPOGRAPHIE INSTITUTIONNELLE
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-family: var(--font-heading);
  line-height: 1.25;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

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

p {
  margin-bottom: 1.2rem;
  color: var(--color-text-main);
}

.text-lead {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-primary-dark);
  font-weight: 500;
}

.text-muted {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* --------------------------------------------------------------------------
   DOUBLE-DECKER HEADER SYSTEM
   -------------------------------------------------------------------------- */
.header-institutional {
  position: sticky;
  top: 0;
  z-index: 10000;
  width: 100%;
  background: var(--color-bg-white);
  box-shadow: var(--shadow-subtle);
}

/* Row 1: Top Utility Strip */
.top-utility-strip {
  background: var(--color-bg-light);
  color: #333333;
  height: 42px;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  border-bottom: 1px solid var(--color-border);
}

.top-utility-strip .rna-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.top-utility-strip .rna-pill {
  background: var(--color-primary);
  color: var(--color-bg-white);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
}

.top-utility-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.search-simulation {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 3px 12px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.search-simulation input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 12px;
  width: 140px;
  color: var(--color-text-main);
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 12px;
}

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

.lang-selector span.separator {
  color: var(--color-border-dark);
}

/* Row 2: Main Navigation Bar */
.main-nav-bar {
  background: var(--color-bg-white);
  height: 74px;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--color-accent);
}

.brand-container {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-emblem {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-weight: 900;
  font-family: var(--font-heading);
  font-size: 20px;
  letter-spacing: 1px;
}

.brand-title-group {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

/* Navigation Menu */
.nav-menu-wrapper {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 6px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  letter-spacing: 0.03em;
  min-height: 44px;
  cursor: pointer;
}

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

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

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

/* Dropdown Menu (Strictly hovered & focusable) */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 280px;
  background: var(--color-bg-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-dropdown);
  padding: 8px 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
}

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

.dropdown-link {
  display: block;
  padding: 12px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--color-text-main);
  border-bottom: 1px solid #F0F4F8;
  transition: var(--transition-standard);
  min-height: 44px;
  line-height: 1.4;
}

.dropdown-link:last-child {
  border-bottom: none;
}

.dropdown-link:hover,
.dropdown-link:focus {
  background: var(--color-bg-light);
  color: var(--color-primary);
  padding-left: 22px;
}

/* Action Button */
.btn-nav-action {
  background: var(--color-primary);
  color: var(--color-bg-white);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-accent);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-standard);
  white-space: nowrap;
}

.btn-nav-action:hover,
.btn-nav-action:focus {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.35);
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  padding: 8px 12px;
  font-size: 18px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}

/* --------------------------------------------------------------------------
   LAYOUT & GRILLE DEUX COLONNES INSTITUTIONNELLE
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section-wrapper {
  padding: 48px 0;
}

/* Two-column Desktop Grid: 3fr main / 1fr sidebar */
.institutional-grid {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 36px;
  align-items: start;
}

.main-column {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-subtle);
}

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

/* Side-rail cards */
.rail-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-subtle);
}

.rail-card.highlight {
  border-top-color: var(--color-accent);
  background: linear-gradient(180deg, #FFFDF0 0%, #FFFFFF 100%);
}

.rail-card h3 {
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--color-primary);
}

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

.key-figure-item {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 12px;
}

.key-figure-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.key-figure-num {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-heading);
  line-height: 1;
  margin-bottom: 4px;
}

.key-figure-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* --------------------------------------------------------------------------
   HERO FRAMEWORK INSTITUTIONNEL
   -------------------------------------------------------------------------- */
.hero-institutional {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-bg-white);
  padding: 56px 0 44px;
  position: relative;
  overflow: hidden;
  border-bottom: 4px solid var(--color-accent);
}

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

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 215, 0, 0.18);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-title {
  color: var(--color-bg-white);
  font-size: 2.75rem;
  line-height: 1.15;
  margin-bottom: 18px;
  font-family: var(--font-heading);
}

.hero-summary-box {
  background: rgba(255, 255, 255, 0.08);
  border-left: 4px solid var(--color-accent);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 24px;
}

.hero-summary-box p {
  color: #F0F4F8;
  font-size: 1.12rem;
  line-height: 1.6;
  margin-bottom: 0;
}

.hero-actions-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-media-wrapper {
  margin-top: 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  border: 3px solid rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------------------------------------
   COMPOSANTS & MODULES DE CONTENU
   -------------------------------------------------------------------------- */

/* Non-profit funding declaration banner */
.funding-disclosure-banner {
  background: #FFFDF0;
  border: 1px solid #FFE58F;
  border-left: 6px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 28px 0;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.funding-disclosure-banner .icon-badge {
  background: var(--color-primary);
  color: var(--color-accent);
  font-weight: 800;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  white-space: nowrap;
}

/* Status Badges */
.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: var(--color-tag-bg);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.status-tag.live {
  background: #E6F4EA;
  color: #137333;
  border-color: #CEEAD6;
}

/* 3-Step Transparency Roadmap */
.transparency-roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.roadmap-step-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  transition: var(--transition-standard);
}

.roadmap-step-card:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-white);
  transform: translateY(-3px);
}

.step-number {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 14px;
}

.roadmap-step-card h4 {
  color: var(--color-primary);
  margin-bottom: 8px;
}

/* Tables comptables & administratives */
.institutional-table-wrapper {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-white);
}

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

.institutional-table th {
  background: var(--color-primary);
  color: var(--color-bg-white);
  padding: 14px 18px;
  font-weight: 600;
  letter-spacing: 0.03em;
  font-family: var(--font-body);
}

.institutional-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
}

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

.institutional-table tr:hover {
  background-color: #EDF3FB;
}

.institutional-table .total-row {
  font-weight: 700;
  background-color: #E2ECF9;
  border-top: 2px solid var(--color-primary);
}

/* Boutons d'action statutaire */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg-white);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-accent);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-standard);
  min-height: 44px;
}

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

.btn-secondary {
  background: var(--color-bg-white);
  color: var(--color-primary);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-primary);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-standard);
  min-height: 44px;
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-bg-light);
  color: var(--color-primary-dark);
}

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

.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 6px;
}

.form-label .required {
  color: #C5221F;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text-main);
  background: var(--color-bg-white);
  transition: var(--transition-standard);
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 35, 102, 0.12);
}

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

/* Cartes de Programmes et Articles */
.cards-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 28px 0;
}

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

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

.content-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

/* --------------------------------------------------------------------------
   FOOTER INSTITUTIONNEL LOI 1901
   -------------------------------------------------------------------------- */
.footer-institutional {
  background: var(--color-primary-dark);
  color: #D3DFEE;
  border-top: 4px solid var(--color-accent);
  padding: 56px 0 24px;
  font-size: 14px;
}

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

.footer-col h4 {
  color: var(--color-accent);
  font-size: 1.05rem;
  margin-bottom: 16px;
  font-family: var(--font-heading);
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(255, 215, 0, 0.3);
  padding-bottom: 6px;
}

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

.footer-links-list a {
  color: #D3DFEE;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
}

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

.footer-col p {
  color: #B2C4D8;
  font-size: 13.5px;
  margin-bottom: 10px;
  line-height: 1.55;
}

.legal-registry-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-top: 14px;
  font-size: 12.5px;
  font-family: var(--font-mono);
}

.footer-mandatory-notice {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  margin-top: 20px;
  font-size: 12px;
  line-height: 1.6;
  color: #93A8C0;
  text-align: center;
}

/* --------------------------------------------------------------------------
   RESPONSIVE MEDIA QUERIES (STRICT RULES)
   -------------------------------------------------------------------------- */

/* Breakpoint 1: Tablettes et écrans moyens (max-width: 992px) */
@media (max-width: 992px) {
  .institutional-grid {
    grid-template-columns: 1fr;
  }
  
  .side-rail {
    order: 2;
  }
  
  .main-column {
    order: 1;
    padding: 28px;
  }
  
  .transparency-roadmap {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
}

/* Breakpoint 2: Smartphones et petits écrans (max-width: 768px) */
@media (max-width: 768px) {
  .top-utility-strip {
    height: auto;
    padding: 8px 16px;
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
  }
  
  .top-utility-right {
    width: 100%;
    justify-content: space-between;
  }
  
  .search-simulation {
    display: none; /* Simplification mobile pour lisibilité */
  }
  
  .main-nav-bar {
    height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
    position: relative;
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav-menu-wrapper {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-bg-white);
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
    margin-top: 12px;
  }
  
  .nav-menu-wrapper.active {
    display: flex;
  }
  
  .nav-links-list {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    padding: 12px 16px;
    justify-content: space-between;
    border-bottom: 1px solid #F0F4F8;
    min-height: 48px; /* Touch target minimum */
  }
  
  .dropdown-menu {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 3px solid var(--color-accent);
    background: var(--color-bg-light);
    border-radius: 0;
    padding: 0;
    display: block;
  }
  
  .dropdown-link {
    padding: 12px 24px;
    min-height: 48px;
    font-size: 14px;
  }
  
  .btn-nav-action {
    width: 100%;
    margin-top: 14px;
    text-align: center;
    min-height: 48px;
  }
  
  .cards-grid-2 {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .hero-institutional {
    padding: 36px 0;
  }
  
  .hero-title {
    font-size: 1.85rem;
  }
  
  .hero-actions-group {
    flex-direction: column;
  }
  
  .hero-actions-group a {
    width: 100%;
    text-align: center;
  }
}