/* ==========================================================================
   CASTELIER PHOTO — Kinetic Swiss Editorial Styling Architecture
   Association Loi 1901 | RNA: W021001074 | SIREN: 531350627 | Château-Thierry
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  --color-bg-light: #fbfbfa;
  --color-surface: #ffffff;
  --color-surface-subtle: #f4f4f1;
  --color-surface-hover: #ecece7;
  
  --color-ink-primary: #121417;
  --color-ink-secondary: #424750;
  --color-ink-muted: #6b7280;
  
  --color-accent-terracotta: #b44322;
  --color-accent-terracotta-hover: #963519;
  --color-accent-warm: #d97736;
  --color-accent-forest: #1e3a2f;
  --color-accent-ochre: #c28834;
  
  --color-border-subtle: #e4e4dd;
  --color-border-medium: #cbd0d8;
  --color-border-strong: #121417;
  
  --color-header-bg: #0f1318;
  --color-header-text: #f4f4f1;
  --color-header-muted: #9aa1ad;
  --color-header-border: #262c36;
  
  --color-footer-bg: #0d1014;
  --color-footer-text: #e5e7eb;
  --color-footer-muted: #8b929e;
  --color-footer-border: #1e242d;
  
  --font-display: "Clash Display", "Cinzel", "Playfair Display", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  
  --max-width-content: 1280px;
  --container-padding: 2rem;
  --radius-sm: 2px;
  --radius-md: 4px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg-light);
  color: var(--color-ink-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* --- Utility Strip (Top Legal Banner) --- */
.top-legal-strip {
  background-color: #080a0d;
  color: #a8b0bd;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid #1a202c;
  text-align: center;
  text-transform: uppercase;
}

.top-legal-strip .strip-inner {
  max-width: var(--max-width-content);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-legal-strip a {
  color: #d1d5db;
  text-decoration: underline;
}

.top-legal-strip a:hover {
  color: #ffffff;
}

/* --- Header & Navigation Architecture --- */
.site-header {
  background-color: var(--color-header-bg);
  color: var(--color-header-text);
  border-bottom: 2px solid var(--color-border-strong);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.header-inner {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

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

.brand-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-title .brand-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-terracotta);
  border-radius: 50%;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--color-header-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Desktop Navigation --- */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: #d1d5db;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover, .nav-item:hover > .nav-link {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: #ffffff;
  border-bottom: 2px solid var(--color-accent-terracotta);
}

/* --- Dropdown Menus --- */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background-color: #161b22;
  border: 1px solid #30363d;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  padding: 0.5rem 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all 0.2s ease;
  z-index: 1010;
  border-radius: var(--radius-sm);
}

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

.dropdown-link {
  display: block;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  color: #cbd5e1;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
}

.dropdown-link:hover {
  background-color: #21262d;
  color: #ffffff;
  border-left-color: var(--color-accent-terracotta);
}

/* --- Header Action Button --- */
.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-terracotta);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  border: 1px solid rgba(255,255,255,0.15);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.header-cta-btn:hover {
  background-color: var(--color-accent-terracotta-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(180, 67, 34, 0.35);
}

/* --- Mobile Menu Toggle --- */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid #30363d;
  color: #ffffff;
  padding: 0.5rem 0.75rem;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  min-height: 44px;
  min-width: 44px;
}

/* --- Main Layout Frame --- */
.main-wrapper {
  flex: 1;
  width: 100%;
}

.content-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 2.5rem 2rem;
}

/* --- Typography & Headers --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-ink-primary);
  line-height: 1.25;
  font-weight: 700;
}

h1 {
  font-size: 2.6rem;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: 1.95rem;
  letter-spacing: -0.01em;
  margin-top: 2rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--color-border-subtle);
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.35rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-ink-secondary);
  font-size: 1.05rem;
}

p.lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--color-ink-primary);
  font-weight: 400;
}

/* --- Kinetic Swiss Hero Section --- */
.hero-editorial {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 3.5rem 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-text-block {
  display: flex;
  flex-direction: column;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-terracotta);
  background-color: #faebe6;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  width: fit-content;
  margin-bottom: 1.25rem;
  font-weight: 600;
  border: 1px solid #f3cbbe;
}

.hero-summary-box {
  background-color: var(--color-surface-subtle);
  border-left: 4px solid var(--color-accent-terracotta);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0 2rem;
  font-size: 1.12rem;
  line-height: 1.65;
  color: var(--color-ink-primary);
  font-weight: 500;
}

.hero-img-container {
  border: 1px solid var(--color-border-subtle);
  box-shadow: 0 12px 32px rgba(18, 20, 23, 0.08);
  position: relative;
  background-color: #e5e7eb;
}

.hero-img-container img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* --- Prominent 'Notre Mission' Exact Block --- */
.mission-highlight-card {
  background-color: #12161c;
  color: #ffffff;
  padding: 2.75rem;
  margin: 2.5rem 0;
  border: 1px solid #232a35;
  position: relative;
}

.mission-highlight-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background-color: var(--color-accent-terracotta);
}

.mission-highlight-card h2 {
  color: #ffffff;
  border-bottom: 1px solid #2d3748;
  font-size: 1.75rem;
  margin-top: 0;
}

.mission-text-exact {
  font-size: 1.15rem;
  line-height: 1.75;
  color: #e2e8f0;
  font-style: italic;
  font-family: var(--font-display);
  margin-bottom: 1.5rem;
}

.mission-details-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #94a3b8;
  border-top: 1px dashed #334155;
  padding-top: 1rem;
}

.mission-details-meta strong {
  color: #f1f5f9;
}

/* --- Swiss Grid Structure & Section Frames --- */
.editorial-section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.section-title-wrap {
  max-width: 800px;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-accent-terracotta);
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

/* --- Activity Preview Cards (4 Cards Grid) --- */
.activity-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.activity-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.activity-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  border-color: var(--color-border-medium);
}

.card-image-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: #e2e8f0;
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  transition: transform 0.3s ease;
}

.activity-card:hover .card-image-wrap img {
  transform: scale(1.03);
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 19, 24, 0.88);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-body h3 {
  font-size: 1.3rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: var(--color-ink-primary);
}

.card-body p {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--color-ink-secondary);
  flex: 1;
  margin-bottom: 1.5rem;
}

.card-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent-terracotta);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  width: fit-content;
}

.card-cta-btn:hover {
  color: var(--color-accent-terracotta-hover);
  border-bottom-color: var(--color-accent-terracotta);
  padding-left: 0.25rem;
}

/* --- Transparency & Governance Block --- */
.transparency-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin: 2.5rem 0;
}

.transparency-item {
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 1.75rem;
  border-radius: var(--radius-sm);
}

.transparency-item h3 {
  font-size: 1.15rem;
  margin-top: 0;
  color: var(--color-accent-forest);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.transparency-item p {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

/* --- Data & Financial Tables --- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--color-border-subtle);
  background: #ffffff;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

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

.data-table th {
  background-color: #f1f3f5;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-ink-primary);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background-color: #fcfcfb;
}

.data-table .highlight-row td {
  background-color: #faf4ed;
  font-weight: 600;
  color: var(--color-accent-terracotta);
}

/* --- Content Longform Typography --- */
.longform-content {
  max-width: 860px;
  margin: 0 auto;
}

.longform-content p {
  font-size: 1.08rem;
  line-height: 1.75;
  margin-bottom: 1.5rem;
  color: #2d3748;
}

.longform-content ul, .longform-content ol {
  margin: 1.25rem 0 1.75rem 2rem;
  color: var(--color-ink-secondary);
}

.longform-content li {
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.content-callout {
  background-color: #f8fafc;
  border-left: 4px solid #3b82f6;
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: var(--radius-sm);
}

.content-callout.warning {
  border-left-color: #f59e0b;
  background-color: #fefce8;
}

.content-callout.compliance {
  border-left-color: var(--color-accent-terracotta);
  background-color: #fff7ed;
}

/* --- Contact & Forms --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}

.contact-info-panel {
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 2.25rem;
}

.info-badge-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.info-badge-item .info-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.info-badge-item .info-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-ink-primary);
}

.contact-form-card {
  background: #ffffff;
  border: 1px solid var(--color-border-subtle);
  padding: 2.25rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-ink-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.98rem;
  background-color: #ffffff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent-terracotta);
  box-shadow: 0 0 0 3px rgba(180, 67, 34, 0.15);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-accent-terracotta);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.85rem 1.75rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
}

.btn-primary:hover {
  background-color: var(--color-accent-terracotta-hover);
  box-shadow: 0 4px 14px rgba(180, 67, 34, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: #ffffff;
  color: var(--color-ink-primary);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.85rem 1.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
}

.btn-secondary:hover {
  background-color: var(--color-ink-primary);
  color: #ffffff;
}

/* --- Universal Footer Architecture --- */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  border-top: 3px solid var(--color-accent-terracotta);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: #ffffff;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-footer-border);
  padding-bottom: 0.5rem;
}

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

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

.footer-nav-list a {
  color: var(--color-footer-muted);
  font-size: 0.9rem;
  transition: color 0.15s ease, padding-left 0.15s ease;
  display: inline-block;
}

.footer-nav-list a:hover {
  color: #ffffff;
  padding-left: 0.35rem;
}

.footer-legal-panel {
  background-color: #12161d;
  border: 1px solid var(--color-footer-border);
  padding: 1.75rem;
  margin-bottom: 2rem;
  border-radius: var(--radius-sm);
}

.footer-legal-panel p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: 0.75rem;
}

.footer-legal-panel p:last-child {
  margin-bottom: 0;
}

.footer-bottom-bar {
  border-top: 1px solid var(--color-footer-border);
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--color-footer-muted);
  font-family: var(--font-mono);
}

.footer-bottom-bar a {
  color: #94a3b8;
  text-decoration: underline;
}

.footer-bottom-bar a:hover {
  color: #ffffff;
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .activity-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .transparency-matrix {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }
  
  .content-container {
    padding: 1.5rem 1rem;
  }
  
  .header-inner {
    padding: 0.75rem 1rem;
  }
  
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #0f1318;
    flex-direction: column;
    padding: 1rem 0;
    border-bottom: 2px solid var(--color-border-strong);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    align-items: stretch;
    gap: 0;
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
    border-radius: 0;
    border-bottom: 1px solid #1a202c;
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background-color: #161b22;
    box-shadow: none;
    border: none;
    padding: 0.25rem 0 0.5rem 1.5rem;
  }
  
  .dropdown-link {
    padding: 0.65rem 1rem;
  }
  
  .header-cta-btn {
    display: none;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.55rem;
  }
  
  .mission-highlight-card {
    padding: 1.5rem;
  }
}

/* --- Print Styles --- */
@media print {
  .top-legal-strip, .site-header, .site-footer, .header-cta-btn, .btn-primary, .btn-secondary {
    display: none !important;
  }
  body {
    background: #ffffff;
    color: #000000;
  }
}