/* ==========================================================================
   STYLE.CSS - NEV NORDIC EN VALLOUISE (ASSOCIATION LOI 1901)
   Architecture institutionnelle, accessible, fluide et performante.
   Charte graphique : Bleu Royal (#002366), Or Profond (#FFD700), Gris Utilité (#F4F6F9), Blanc (#FFFFFF).
   ========================================================================== */

:root {
  --color-primary: #002366;
  --color-primary-dark: #001844;
  --color-primary-light: #0d388e;
  --color-accent: #FFD700;
  --color-accent-hover: #e6c200;
  --color-bg-light: #F4F6F9;
  --color-bg-white: #FFFFFF;
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #E2E8F0;
  --color-border-dark: #cbd5e1;
  --color-success: #15803d;
  --color-success-bg: #dcfce7;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-dropdown: 0 10px 25px -5px rgba(0, 35, 102, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --max-width: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

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;
}

/* ==========================================================================
   HEADER SYSTEM - DOUBLE-DECKER TRUST GRID
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 9990;
  background-color: var(--color-bg-white);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border);
}

/* Row 1 : Top Utility Strip */
.top-utility-strip {
  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);
}

.utility-left {
  display: flex;
  align-items: center;
  gap: 16px;
  font-weight: 500;
}

.utility-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #e2e8f0;
  color: #0f172a;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
}

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

.utility-search-box {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
}

.utility-search-box input {
  border: none;
  background: transparent;
  font-size: 12px;
  padding: 4px 6px;
  width: 160px;
  outline: none;
  color: var(--color-text-main);
}

.utility-lang {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #475569;
}

.utility-lang span.active {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Row 2 : Main Navigation Bar */
.main-nav-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

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

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
  height: 100%;
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  height: 100%;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  white-space: nowrap;
  transition: all 0.2s ease;
  border-bottom: 3px solid transparent;
}

.nav-link:hover,
.nav-item:hover .nav-link,
.nav-item:focus-within .nav-link {
  color: var(--color-primary-light);
  border-bottom-color: var(--color-accent);
}

.nav-arrow {
  font-size: 0.65rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.nav-item:hover .nav-arrow {
  transform: translateY(1px);
}

/* Dropdown Menu */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 9999;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-dropdown);
  border-radius: var(--radius-sm);
  min-width: 280px;
  padding: 8px 0;
  list-style: none;
  display: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

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

.dropdown-link {
  display: block;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #334155;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
}

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

.header-action {
  display: flex;
  align-items: center;
}

.btn-header-contact {
  background: var(--color-primary);
  color: #ffffff;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 2px solid var(--color-primary);
  transition: all 0.2s ease;
  white-space: nowrap;
}

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

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  font-size: 1.2rem;
  color: var(--color-primary);
}

/* ==========================================================================
   PAGE LAYOUT & CONTAINER SYSTEM
   ========================================================================== */

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

.section-py {
  padding-top: 48px;
  padding-bottom: 48px;
}

.section-py-lg {
  padding-top: 64px;
  padding-bottom: 64px;
}

.bg-light {
  background-color: var(--color-bg-light);
}

.bg-white {
  background-color: var(--color-bg-white);
}

/* Hero Banners */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #ffffff;
  padding: 48px 0;
  border-bottom: 4px solid var(--color-accent);
}

.page-hero-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 12px;
  color: #ffffff;
}

.page-hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #e2e8f0;
  max-width: 800px;
}

.hero-meta-strip {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

.hero-meta-item {
  background: rgba(255, 255, 255, 0.12);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Image Visual Wrap */
.img-visual-wrap {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  background-color: #000;
  margin-bottom: 28px;
}

.img-visual-wrap img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

/* Two-column layout for Index (3fr main content / 1fr side-rail) */
.layout-two-col {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 36px;
  align-items: start;
}

.side-rail {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.side-rail-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

/* Stat Box / Chiffres Clés */
.stat-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 14px;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Typography & Headings */
h1, h2, h3, h4 {
  color: var(--color-primary);
  font-weight: 700;
}

h2 {
  font-size: 1.65rem;
  margin-bottom: 16px;
  position: relative;
}

h3 {
  font-size: 1.25rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 18px;
  color: #334155;
}

.lead-p {
  font-size: 1.12rem;
  line-height: 1.7;
  color: #1e293b;
  font-weight: 500;
}

/* Non-profit Summary Box */
.non-profit-summary-banner {
  background-color: #f0f7ff;
  border-left: 4px solid var(--color-primary);
  border-right: 1px solid #bfdbfe;
  border-top: 1px solid #bfdbfe;
  border-bottom: 1px solid #bfdbfe;
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 32px;
}

.non-profit-summary-banner p {
  margin-bottom: 0;
  font-size: 1.05rem;
  color: #0f172a;
  font-weight: 500;
}

/* Funding & Reinvestment Disclosure Callout */
.reinvestment-callout {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 4px solid var(--color-accent);
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  margin: 28px 0;
  font-size: 0.95rem;
  color: #92400e;
  font-weight: 600;
}

/* Cards & Grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.inst-card {
  background: var(--color-bg-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);
  border-color: var(--color-border-dark);
}

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-light);
  color: var(--color-primary);
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

/* Status Tag for Activities */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 9999px;
  background: var(--color-success-bg);
  color: var(--color-success);
}

.status-badge::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-success);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  min-height: 44px;
}

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

.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: 0.95rem;
  font-weight: 800;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-accent);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  min-height: 44px;
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #ffffff;
  color: var(--color-primary);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  min-height: 44px;
}

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

/* Institutional Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.inst-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.inst-table th {
  background: var(--color-primary);
  color: #ffffff;
  padding: 14px 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.inst-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--color-border);
  color: #334155;
}

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

.inst-table tr:hover td {
  background: #eef2f6;
}

.inst-table tfoot td {
  background: #f8fafc;
  font-weight: 700;
  color: var(--color-primary);
  border-top: 2px solid var(--color-primary);
}

/* Forms */
.form-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

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

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--color-text-main);
  background-color: #ffffff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
}

.form-control:focus {
  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;
}

/* Timeline */
.timeline {
  position: relative;
  margin: 32px 0;
  padding-left: 24px;
  border-left: 3px solid var(--color-accent);
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-accent);
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

/* 3-Step Roadmap */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 28px 0;
}

.roadmap-step {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
}

.roadmap-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-accent);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

/* ==========================================================================
   FOOTER SYSTEM
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary-dark);
  color: #e2e8f0;
  padding-top: 48px;
  border-top: 4px solid var(--color-accent);
  margin-top: 60px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #ffffff;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.footer-brand {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-text {
  font-size: 0.88rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: 14px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #cbd5e1;
  font-size: 0.88rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
  display: inline-block;
}

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

.footer-badge-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.82rem;
  color: #94a3b8;
}

.footer-badge-item {
  display: inline-block;
  background: rgba(255, 255, 255, 0.08);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--color-accent);
  color: #f1f5f9;
}

/* Footer Bottom Strip */
.footer-bottom-notice {
  padding: 24px 0;
  background: #00102e;
}

.footer-notice-text {
  font-size: 0.82rem;
  line-height: 1.6;
  color: #94a3b8;
  text-align: center;
  margin-bottom: 0;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */

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

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .utility-left, .utility-right {
    width: 100%;
    justify-content: space-between;
  }

  .utility-search-box input {
    width: 110px;
  }

  .main-nav-bar {
    height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
  }

  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    height: auto;
    margin-top: 12px;
    border-top: 1px solid var(--color-border);
    padding-top: 8px;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-item {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    height: auto;
  }

  .nav-link {
    width: 100%;
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-border);
    min-height: 44px;
  }

  .nav-dropdown {
    position: static;
    display: none;
    width: 100%;
    box-shadow: none;
    border: none;
    background: var(--color-bg-light);
    padding: 4px 0 8px 12px;
    opacity: 1;
    transform: none;
  }

  .nav-item.mobile-open .nav-dropdown {
    display: block;
  }

  .header-action {
    display: none;
  }

  .page-hero-title {
    font-size: 1.7rem;
  }

  .grid-3, .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }

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