/* ==========================================================================
   CLUB ARCHÉOLOGIQUE DU LANGUEDOC - STYLESHEET (NEO-BRUTALIST EDITORIAL HYBRID)
   Compliant with Loi 1901 Institutional Standards & Web Accessibility 2026
   ========================================================================== */

:root {
  --color-cream: #F5F5F0;
  --color-white: #FFFFFF;
  --color-slate: #1E293B;
  --color-slate-light: #334155;
  --color-terracotta: #C2410C;
  --color-terracotta-hover: #9A3412;
  --color-ochre: #4D7C0F;
  --color-ochre-light: #65A30D;
  --color-muted: #64748B;
  --color-border: #1E293B;
  
  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  
  --shadow-brutal: 4px 4px 0px var(--color-border);
  --shadow-brutal-sm: 2px 2px 0px var(--color-border);
  --shadow-brutal-lg: 6px 6px 0px var(--color-border);
}

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

html {
  scroll-behavior: smooth;
  font-size: 100%;
}

body {
  background-color: var(--color-cream);
  color: var(--color-slate);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  padding-top: 130px;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-slate);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: clamp(2rem, 4vw + 1rem, 3.25rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 2.5vw + 0.75rem, 2.35rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 1.5vw + 0.5rem, 1.65rem);
}

h4 {
  font-size: 1.2rem;
}

p {
  margin-bottom: 1.2rem;
  max-width: 75ch;
}

a {
  color: var(--color-terracotta);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-terracotta-hover);
  text-decoration: underline;
}

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

/* Structural Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  max-width: 880px;
}

/* Utility Header Strip */
.top-utility-strip {
  background-color: var(--color-slate);
  color: #E2E8F0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.45rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.top-utility-strip a {
  color: #CBD5E1;
  text-decoration: underline;
}

.top-utility-strip a:hover {
  color: #FFFFFF;
}

.utility-meta-left {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.utility-badge {
  display: inline-block;
  background-color: var(--color-terracotta);
  color: var(--color-white);
  padding: 0.1rem 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Sticky Main Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  background-color: var(--color-white);
  box-shadow: 0 2px 0px var(--color-border);
}

.main-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  max-width: 1240px;
  margin: 0 auto;
}

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

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--color-slate);
  letter-spacing: -0.01em;
  line-height: 1.1;
  text-decoration: none;
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-terracotta);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.5rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-block;
  padding: 0.5rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-slate);
  text-decoration: none;
  border: 1px solid transparent;
  min-height: 44px;
  line-height: 26px;
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-link:focus, .nav-link.active {
  color: var(--color-slate);
  background-color: var(--color-cream);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  text-decoration: none;
}

/* Mega Menu */
.mega-menu-parent {
  position: static;
}

.mega-menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.mega-menu-toggle::after {
  content: "▾";
  font-size: 0.8rem;
}

.mega-menu-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 95%;
  max-width: 1140px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-lg);
  padding: 1.75rem 2rem;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  z-index: 10001;
}

.mega-menu-parent:hover .mega-menu-panel,
.mega-menu-parent:focus-within .mega-menu-panel {
  display: grid;
}

.mega-col-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-terracotta);
  border-bottom: 2px solid var(--color-slate);
  padding-bottom: 0.45rem;
  margin-bottom: 0.85rem;
  font-weight: 700;
}

.mega-list {
  list-style: none;
}

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

.mega-list a {
  color: var(--color-slate);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  padding: 0.4rem 0.5rem;
  border-left: 2px solid transparent;
  transition: all 0.15s ease;
}

.mega-list a:hover {
  text-decoration: none;
  background-color: var(--color-cream);
  border-left: 2px solid var(--color-terracotta);
  padding-left: 0.75rem;
}

.mega-link-desc {
  font-size: 0.78rem;
  font-weight: normal;
  color: var(--color-muted);
  margin-top: 0.15rem;
}

/* CTA Header Button */
.btn-nav-cta {
  display: inline-block;
  background-color: var(--color-terracotta);
  color: var(--color-white) !important;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.5rem 1.15rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  text-decoration: none !important;
  min-height: 44px;
  line-height: 26px;
  white-space: nowrap;
}

.btn-nav-cta:hover {
  background-color: var(--color-terracotta-hover);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-brutal);
}

/* Mobile Nav Toggle */
.mobile-toggle-btn {
  display: none;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-border);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  min-height: 44px;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-terracotta);
  color: var(--color-white);
  box-shadow: var(--shadow-brutal);
}

.btn-primary:hover {
  background-color: var(--color-terracotta-hover);
  color: var(--color-white);
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-brutal-lg);
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-slate);
  box-shadow: var(--shadow-brutal);
}

.btn-secondary:hover {
  background-color: var(--color-cream);
  color: var(--color-slate);
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-brutal-lg);
  text-decoration: none;
}

.btn-ochre {
  background-color: var(--color-ochre);
  color: var(--color-white);
  box-shadow: var(--shadow-brutal);
}

.btn-ochre:hover {
  background-color: var(--color-ochre-light);
  color: var(--color-white);
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-brutal-lg);
  text-decoration: none;
}

/* Hero Section */
.hero-section {
  padding: 2.5rem 0 3.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-cream);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  padding: 0.35rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-terracotta);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-summary-2-sentences {
  font-size: 1.15rem;
  line-height: 1.6;
  font-weight: 500;
  color: var(--color-slate-light);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0 1.75rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.hero-image-frame {
  position: relative;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-lg);
  background-color: var(--color-white);
  padding: 0.65rem;
  transform: rotate(0.5deg);
}

.hero-image-frame img {
  aspect-ratio: 16 / 9;
  width: 100%;
  border: 1px solid var(--color-border);
}

/* Non-profit banner notice */
.institutional-banner {
  background-color: #FEF3C7;
  border: 1px solid #D97706;
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  box-shadow: var(--shadow-brutal-sm);
  font-size: 0.95rem;
  line-height: 1.5;
}

.institutional-banner strong {
  color: #92400E;
}

/* Cards & Sections */
.section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--color-border);
}

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

.section-header {
  margin-bottom: 2.75rem;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-ochre);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  padding: 1.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-brutal-lg);
}

.card-img-top {
  margin: -1.75rem -1.75rem 1.25rem -1.75rem;
  border-bottom: 1px solid var(--color-border);
  aspect-ratio: 16 / 9;
  width: calc(100% + 3.5rem);
  object-fit: cover;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Statistical Impact Matrix */
.stat-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  padding: 1.75rem 1.25rem;
  text-align: center;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--color-terracotta);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-slate-light);
}

/* Page Header Banners */
.page-banner {
  background-color: var(--color-slate);
  color: var(--color-white);
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.page-banner h1 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.page-banner p {
  color: #E2E8F0;
  font-size: 1.15rem;
  max-width: 80ch;
}

.page-banner-img {
  margin-top: 2rem;
  border: 1px solid var(--color-white);
  box-shadow: var(--shadow-brutal-lg);
  aspect-ratio: 16 / 9;
  width: 100%;
  max-height: 440px;
  object-fit: cover;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 3px solid var(--color-slate);
  margin: 2rem 0;
}

.timeline-item {
  position: relative;
  margin-bottom: 2.25rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.7rem;
  top: 0.25rem;
  width: 16px;
  height: 16px;
  background-color: var(--color-terracotta);
  border: 2px solid var(--color-slate);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-terracotta);
  margin-bottom: 0.25rem;
}

/* Tables */
.table-responsive {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
}

.table-custom {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
  text-align: left;
}

.table-custom th, .table-custom td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid #E2E8F0;
}

.table-custom th {
  background-color: var(--color-cream);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate);
}

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

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

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
  color: var(--color-slate);
}

.form-control, .form-select, .form-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-slate);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  outline: none;
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-terracotta);
  box-shadow: var(--shadow-brutal);
}

/* Footer Mega Section */
.site-footer {
  background-color: var(--color-white);
  border-top: 2px solid var(--color-border);
  padding: 4rem 0 1.5rem;
  color: var(--color-slate);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr 1.15fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-terracotta);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

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

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

.footer-nav a {
  color: var(--color-slate);
  font-size: 0.92rem;
  text-decoration: none;
  display: inline-block;
  transition: transform 0.15s ease;
}

.footer-nav a:hover {
  color: var(--color-terracotta);
  text-decoration: underline;
  transform: translateX(4px);
}

/* Legal Trust Baseline */
.legal-trust-baseline {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  margin-top: 2rem;
  font-size: 0.82rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.legal-grid-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.legal-notice-box {
  max-width: 820px;
}

.legal-links-list {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  flex-wrap: wrap;
}

.legal-links-list a {
  color: var(--color-slate);
  font-weight: 700;
  text-decoration: underline;
}

/* Mobile Responsiveness */
@media (max-width: 992px) {
  body {
    padding-top: 140px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  
  .mega-menu-panel {
    grid-template-columns: 1fr;
    position: static;
    transform: none;
    width: 100%;
    margin-top: 0.5rem;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 155px;
  }
  
  /* Mobile Reset Rule */
  .card, .btn, .stat-box, .hero-summary-2-sentences, .hero-image-frame {
    transform: none !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    box-shadow: 2px 2px 0px #1E293B !important;
  }
  
  .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .top-utility-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    font-size: 0.72rem;
  }
  
  .mobile-toggle-btn {
    display: inline-block;
  }
  
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    border-bottom: 2px solid var(--color-border);
    padding: 1rem;
    box-shadow: var(--shadow-brutal);
  }
  
  .nav-links.is-open {
    display: flex;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    border-bottom: 1px solid #E2E8F0;
  }
  
  .mega-menu-panel {
    display: none;
  }
  
  .mega-menu-parent.is-open .mega-menu-panel {
    display: block;
  }
  
  .legal-grid-bottom {
    flex-direction: column;
  }
}