/* ==========================================================================
   ENSEMBLE ALTAIS - ASSOCIATION LOI 1901
   FEUILLE DE STYLE OFFICIELLE (NEO-BRUTALIST EDITORIAL HYBRID)
   Exercice Statutaire 2026
   ========================================================================== */

:root {
  --color-cream: #F5F5F0;
  --color-white: #FFFFFF;
  --color-slate: #1E293B;
  --color-slate-light: #334155;
  --color-terracotta: #C2410C;
  --color-terracotta-light: #FFEDD5;
  --color-ochre: #4D7C0F;
  --color-ochre-light: #ECFCCB;
  --color-border: #1E293B;
  --color-gray-soft: #E2E8F0;
  --color-gray-subtle: #F1F5F9;
  
  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", Menlo, Monaco, "Courier New", monospace;

  --shadow-brutal: 4px 4px 0px var(--color-border);
  --shadow-brutal-sm: 2px 2px 0px var(--color-border);
  --shadow-brutal-lg: 8px 8px 0px var(--color-border);
  --transition-fast: 0.18s ease-in-out;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-cream);
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-cream);
  color: var(--color-slate);
  line-height: 1.65;
  padding-top: 130px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  color: var(--color-slate);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.6rem);
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: #334155;
  max-width: 75ch;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mono {
  font-family: var(--font-mono);
}

/* ==========================================================================
   CONTAINERS & STRUCTURAL GRID
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3vw, 2.5rem);
  padding-right: clamp(1rem, 3vw, 2.5rem);
}

.section {
  padding-top: clamp(3rem, 6vw, 6rem);
  padding-bottom: clamp(3rem, 6vw, 6rem);
  border-bottom: 1px solid var(--color-border);
}

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

.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;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  background: var(--color-white);
  border-bottom: 2px solid var(--color-border);
  box-shadow: 0 4px 0px rgba(30, 41, 59, 0.05);
}

.top-utility-strip {
  background-color: var(--color-slate);
  color: #CBD5E1;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.top-utility-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-utility-strip a {
  color: #F8FAFC;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.top-utility-strip a:hover {
  color: var(--color-terracotta-light);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.brand-logo .logo-main {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-slate);
  line-height: 1;
}

.brand-logo .logo-sub {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-terracotta);
  font-weight: 700;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-slate);
  padding: 0.5rem 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  position: relative;
  min-height: 44px;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-terracotta);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-terracotta);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

/* ==========================================================================
   MEGA MENU
   ========================================================================== */

.mega-menu-trigger {
  cursor: pointer;
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: -120px;
  width: 820px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal-lg);
  padding: 2rem;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  z-index: 10001;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-item:hover .mega-menu {
  display: grid;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mega-col-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-terracotta);
  font-weight: 700;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

.mega-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mega-links a {
  display: block;
  padding: 0.5rem 0.6rem;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 0;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-slate);
  transition: all var(--transition-fast);
}

.mega-links a:hover {
  background: var(--color-cream);
  border-color: var(--color-border);
  transform: translate(-2px, -2px);
  box-shadow: 2px 2px 0px var(--color-border);
  color: var(--color-terracotta);
}

.mega-links a span.desc {
  display: block;
  font-size: 0.74rem;
  color: #64748B;
  font-weight: 400;
  margin-top: 0.2rem;
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  min-height: 44px;
  min-width: 44px;
}

/* ==========================================================================
   BUTTONS & CTAS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  cursor: pointer;
  white-space: nowrap;
  min-height: 44px;
  background: var(--color-white);
  color: var(--color-slate);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 6px 6px 0px var(--color-border);
}

.btn:active {
  transform: translate(0, 0);
  box-shadow: var(--shadow-brutal-sm);
}

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

.btn-terracotta:hover {
  background-color: #9A3412;
  color: var(--color-white);
}

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

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

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  box-shadow: var(--shadow-brutal-sm);
}

/* ==========================================================================
   CARDS & STRUCTURAL BOXES (NEO-BRUTALIST)
   ========================================================================== */

.card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  padding: 1.75rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0px var(--color-border);
}

.card-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: 1.25rem;
  background: var(--color-slate);
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

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

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--color-border);
  margin-bottom: 0.75rem;
  background: var(--color-cream);
  color: var(--color-slate);
  white-space: nowrap;
}

.badge-terracotta {
  background: var(--color-terracotta-light);
  color: var(--color-terracotta);
  border-color: var(--color-terracotta);
}

.badge-ochre {
  background: var(--color-ochre-light);
  color: var(--color-ochre);
  border-color: var(--color-ochre);
}

/* ==========================================================================
   HERO BANNER & ASYMMETRIC LAYOUTS
   ========================================================================== */

.hero-section {
  background: var(--color-cream);
  padding-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: clamp(3rem, 6vw, 5.5rem);
  border-bottom: 2px solid var(--color-border);
}

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

.hero-summary-box {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  border-left: 6px solid var(--color-terracotta);
}

.hero-summary-box p {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-slate);
  line-height: 1.5;
  margin-bottom: 0;
}

.hero-media-frame {
  position: relative;
}

.hero-media-frame .img-container {
  border: 3px solid var(--color-border);
  box-shadow: var(--shadow-brutal-lg);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-slate);
}

.hero-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-tag-accent {
  position: absolute;
  bottom: -18px;
  right: -18px;
  background: var(--color-terracotta);
  color: var(--color-white);
  border: 2px solid var(--color-border);
  padding: 0.6rem 1.2rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: var(--shadow-brutal-sm);
}

/* ==========================================================================
   COMPLIANCE NOTICES & CALLOUTS
   ========================================================================== */

.compliance-banner {
  background: #FFFBEB;
  border: 2px solid #D97706;
  padding: 1.25rem 1.75rem;
  margin: 2rem 0;
  box-shadow: 4px 4px 0px #D97706;
}

.compliance-banner h4 {
  color: #B45309;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.95rem;
}

.compliance-banner p {
  color: #78350F;
  font-size: 0.98rem;
  margin-bottom: 0;
}

/* Reinvestment Clause Box */
.reinvestment-clause {
  background: var(--color-ochre-light);
  border: 2px solid var(--color-ochre);
  padding: 1.5rem;
  box-shadow: 4px 4px 0px var(--color-ochre);
  margin: 2rem 0;
}

.reinvestment-clause strong {
  display: block;
  color: var(--color-ochre);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.reinvestment-clause p {
  font-style: italic;
  font-weight: 600;
  color: #1E3A8A;
  margin-bottom: 0;
  font-size: 1.05rem;
}

/* ==========================================================================
   PAGE HEROES & BREADCRUMBS
   ========================================================================== */

.page-hero {
  background: var(--color-white);
  border-bottom: 2px solid var(--color-border);
  padding: 3.5rem 0 3rem;
  position: relative;
}

.page-hero-banner-img {
  width: 100%;
  aspect-ratio: 21 / 8;
  max-height: 420px;
  overflow: hidden;
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  margin-top: 2rem;
  background: var(--color-slate);
}

.page-hero-banner-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-pre-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-terracotta);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   DATA TABLES & STATISTICAL MATRICES
   ========================================================================== */

.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0 2rem;
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  background: var(--color-white);
}

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

.data-table th {
  background: var(--color-slate);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
}

.data-table td {
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-gray-soft);
  color: var(--color-slate);
}

.data-table tr:nth-child(even) td {
  background-color: var(--color-cream);
}

.data-table tr:hover td {
  background-color: var(--color-terracotta-light);
}

/* Stats counter blocks */
.stat-box {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-brutal);
  padding: 1.75rem;
  text-align: center;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  color: var(--color-terracotta);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-slate);
  font-weight: 700;
}

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */

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

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  color: var(--color-slate);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-slate);
  border-radius: 0;
  box-shadow: var(--shadow-brutal-sm);
  transition: all var(--transition-fast);
  min-height: 48px;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-terracotta);
  box-shadow: 4px 4px 0px var(--color-terracotta);
  background: #FFFDF9;
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

/* ==========================================================================
   FOOTER (MEGA FOOTER LOI 1901)
   ========================================================================== */

.site-footer {
  background: var(--color-slate);
  color: #E2E8F0;
  border-top: 3px solid var(--color-border);
  padding-top: clamp(3rem, 6vw, 5rem);
  margin-top: auto;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #F8FAFC;
  border-bottom: 2px solid var(--color-terracotta);
  padding-bottom: 0.6rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #CBD5E1;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-links a:hover {
  color: #FFFFFF;
  transform: translateX(3px);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-org-summary {
  font-size: 0.92rem;
  line-height: 1.6;
  color: #94A3B8;
  margin-bottom: 1.25rem;
}

.footer-contact-badge {
  background: #0F172A;
  border: 1px solid #334155;
  padding: 1rem;
  font-size: 0.85rem;
  color: #CBD5E1;
}

.footer-contact-badge strong {
  color: #F8FAFC;
  display: block;
  margin-bottom: 0.25rem;
}

.footer-legal-baseline {
  border-top: 1px solid #334155;
  background: #0F172A;
  padding: 2rem 0;
  font-size: 0.82rem;
  color: #94A3B8;
  line-height: 1.6;
}

.footer-legal-baseline .container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.legal-badges-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.legal-badge-item {
  font-family: var(--font-mono);
  background: #1E293B;
  color: #E2E8F0;
  border: 1px solid #475569;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

.legal-bottom-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.legal-bottom-links a {
  color: #CBD5E1;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-bottom-links a:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   TIMELINE (ABOUT / HISTORIQUE)
   ========================================================================== */

.timeline-vertical {
  position: relative;
  margin: 2.5rem 0;
  padding-left: 2.5rem;
  border-left: 3px solid var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2.9rem;
  top: 0.25rem;
  width: 20px;
  height: 20px;
  background: var(--color-terracotta);
  border: 3px solid var(--color-border);
  box-shadow: 2px 2px 0px var(--color-border);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-terracotta);
  margin-bottom: 0.35rem;
}

/* ==========================================================================
   MOBILE RESPONSIVENESS & BREAKPOINTS (STRICT PROTOCOL)
   ========================================================================== */

@media (max-width: 992px) {
  body {
    padding-top: 120px;
  }

  .nav-bar {
    height: 70px;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-white);
    border-bottom: 3px solid var(--color-border);
    box-shadow: var(--shadow-brutal-lg);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 0.75rem;
  }

  .main-nav.is-open {
    display: flex;
  }

  .mega-menu {
    position: static;
    width: 100%;
    display: none;
    grid-template-columns: 1fr;
    box-shadow: none;
    border: 1px solid var(--color-border);
    padding: 1rem;
    margin-top: 0.5rem;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .nav-item.mobile-open .mega-menu {
    display: grid;
  }

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

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

  .hero-split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 110px;
  }

  /* Mobile Reset Protocol */
  .card:hover, .btn:hover {
    transform: none !important;
    margin: 0 !important;
    box-shadow: 2px 2px 0px var(--color-border) !important;
  }

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

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .stat-box {
    padding: 1.25rem;
  }

  .hero-tag-accent {
    position: static;
    display: inline-block;
    margin-top: 0.75rem;
  }
}