/* ==========================================================================
   DESIGN SYSTEM: THE REVOLUTIONARY ARCHIVE
   ACT LES AMIS DU CHATEAU DE TROISSEREUX - ASSOCIATION LOI 1901
   ========================================================================== */

:root {
  --color-slate: #0F172A;
  --color-terracotta: #C2593F;
  --color-terracotta-hover: #A84730;
  --color-parchment: #F8F5EE;
  --color-card: #FFFFFF;
  --color-sandstone: #E2D9CC;
  --color-charcoal: #1E293B;
  --color-muted: #475569;
  --color-lead: #334155;
  --font-serif: "Iowan Old Style", "Apple Garamond", "Baskerville", "Times New Roman", "Droid Serif", "Times", "Source Serif Pro", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Consolas", "Liberation Mono", "Courier New", monospace;
  --header-offset: 125px;
  --transition-standard: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-serif);
  color: var(--color-charcoal);
  background-color: var(--color-parchment);
  line-height: 1.68;
  padding-top: var(--header-offset);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Dynamic Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  right: 0;
  width: 5px;
  height: 0%;
  background: var(--color-terracotta);
  z-index: 10001;
  transition: height 0.05s linear;
}

/* ==========================================================================
   DOUBLE-DECKER HEADER ARCHITECTURE
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  background: var(--color-card);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  border-bottom: 1px solid var(--color-sandstone);
}

/* Level 1: Civic Ledger Utility Strip */
.utility-strip {
  background-color: var(--color-slate);
  color: #CBD5E1;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  padding: 6px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.utility-strip a {
  color: #E2E8F0;
  text-decoration: none;
  transition: var(--transition-standard);
}

.utility-strip a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.utility-badge {
  background: rgba(255, 255, 255, 0.12);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  color: #F8FAFC;
}

/* Level 2: Split Navigation Bar */
.main-navigation-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 24px;
  background-color: var(--color-card);
  min-height: 65px;
}

.brand-badge {
  display: flex;
  flex-direction: column;
  background-color: var(--color-terracotta);
  color: #FFFFFF;
  padding: 8px 16px;
  border-radius: 4px;
  text-decoration: none;
  transition: var(--transition-standard);
  max-width: 380px;
}

.brand-badge:hover {
  background-color: var(--color-terracotta-hover);
}

.brand-badge-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  line-height: 1.2;
}

.brand-badge-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  opacity: 0.9;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Navigation Links */
.portal-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-item {
  position: relative;
  list-style: none;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-slate);
  text-decoration: none;
  border-radius: 4px;
  transition: var(--transition-standard);
  white-space: nowrap;
}

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

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-card);
  border: 1px solid var(--color-sandstone);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
  border-radius: 6px;
  padding: 8px 0;
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s ease;
  z-index: 10010;
  list-style: none;
}

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

.dropdown-menu li {
  margin: 0;
  padding: 0;
}

.dropdown-item {
  display: block;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  color: var(--color-charcoal);
  text-decoration: none;
  transition: var(--transition-standard);
}

.dropdown-item:hover {
  background-color: var(--color-parchment);
  color: var(--color-terracotta);
  padding-left: 22px;
}

/* Nav CTA */
.nav-cta-contact {
  background-color: var(--color-slate);
  color: #FFFFFF !important;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: 600;
}

.nav-cta-contact:hover {
  background-color: var(--color-terracotta) !important;
  color: #FFFFFF !important;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-sandstone);
  border-radius: 4px;
  padding: 10px 14px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-slate);
}

/* ==========================================================================
   PAGE CANVAS & ASYMMETRICAL STRUCTURAL LAYOUT
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-hero {
  background: var(--color-slate);
  color: #FFFFFF;
  padding: 48px 0 54px;
  margin-bottom: 40px;
  border-bottom: 4px solid var(--color-terracotta);
  position: relative;
}

.page-hero-inner {
  max-width: 1100px;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(194, 89, 63, 0.25);
  border: 1px solid var(--color-terracotta);
  color: #F8FAFC;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 18px;
  color: #FFFFFF;
}

.hero-summary {
  font-size: 1.15rem;
  line-height: 1.6;
  color: #E2E8F0;
  max-width: 850px;
  margin-bottom: 24px;
}

/* Asymmetrical Grid: 320px Side-Rail + 1fr Main Canvas */
.asymmetric-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 36px;
  margin-bottom: 60px;
  align-items: start;
}

/* Left Column: Monospace Side-Rail Logbook */
.side-rail-logbook {
  font-family: var(--font-mono);
  background-color: var(--color-card);
  border: 1px solid var(--color-sandstone);
  border-radius: 8px;
  padding: 24px;
  position: sticky;
  top: 140px;
  font-size: 0.82rem;
  line-height: 1.6;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.side-rail-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-slate);
  border-bottom: 2px solid var(--color-terracotta);
  padding-bottom: 8px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ledger-meta-item {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--color-sandstone);
}

.ledger-meta-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.ledger-label {
  display: block;
  font-size: 0.72rem;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.ledger-value {
  color: var(--color-charcoal);
  font-weight: 600;
}

.side-rail-quote {
  background: var(--color-parchment);
  border-left: 3px solid var(--color-terracotta);
  padding: 12px 14px;
  margin: 18px 0;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--color-slate);
}

.side-rail-nav {
  margin-top: 18px;
  list-style: none;
}

.side-rail-nav li {
  margin-bottom: 8px;
}

.side-rail-nav a {
  color: var(--color-terracotta);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-standard);
  display: block;
}

.side-rail-nav a:hover {
  text-decoration: underline;
  padding-left: 4px;
}

/* Right Column: Primary Analytical Canvas */
.primary-canvas {
  background-color: var(--color-card);
  border: 1px solid var(--color-sandstone);
  border-radius: 8px;
  padding: 40px;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
}

/* Typography Inside Primary Canvas */
.primary-canvas h1,
.primary-canvas h2,
.primary-canvas h3,
.primary-canvas h4 {
  color: var(--color-slate);
  margin-top: 2rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.primary-canvas h1:first-child,
.primary-canvas h2:first-child {
  margin-top: 0;
}

.primary-canvas h2 {
  font-size: 1.8rem;
  border-bottom: 1px solid var(--color-sandstone);
  padding-bottom: 8px;
}

.primary-canvas h3 {
  font-size: 1.35rem;
}

.primary-canvas p {
  margin-bottom: 1.4rem;
  color: var(--color-lead);
  font-size: 1.05rem;
  line-height: 1.72;
}

.primary-canvas ul,
.primary-canvas ol {
  margin-bottom: 1.5rem;
  padding-left: 1.6rem;
}

.primary-canvas li {
  margin-bottom: 0.6rem;
  color: var(--color-lead);
  line-height: 1.65;
}

/* Mandatory Notre Mission Callout Frame */
.mission-callout-frame {
  background: var(--color-parchment);
  border: 2px solid var(--color-terracotta);
  border-radius: 8px;
  padding: 30px;
  margin: 32px 0;
  position: relative;
}

.mission-callout-frame::before {
  content: "DÉCLARATION STATUTAIRE D'UTILITÉ PUBLIQUE";
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--color-terracotta);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.mission-statement-text {
  font-size: 1.12rem;
  line-height: 1.8;
  color: var(--color-slate);
  font-weight: 500;
  margin-bottom: 0 !important;
}

/* Reinvestment Statement Card */
.reinvestment-callout {
  background: #EFF6FF;
  border-left: 4px solid var(--color-slate);
  padding: 18px 24px;
  margin: 28px 0;
  border-radius: 0 6px 6px 0;
  font-family: var(--font-sans);
}

.reinvestment-callout strong {
  color: var(--color-slate);
  display: block;
  margin-bottom: 4px;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.reinvestment-callout p {
  font-size: 1rem;
  color: #1E3A8A;
  margin-bottom: 0;
}

/* Photorealistic Image Framing */
.content-image-box {
  margin: 32px 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-sandstone);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
  background: #E2E8F0;
}

.content-image-box img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

/* Non-commercial Action Buttons (CTAs) */
.cta-group {
  display: flex;
  gap: 16px;
  margin: 32px 0;
  flex-wrap: wrap;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  min-height: 48px;
  cursor: pointer;
  transition: var(--transition-standard);
  border: 1px solid transparent;
  text-align: center;
}

.btn-cta-primary {
  background-color: var(--color-terracotta);
  color: #FFFFFF;
}

.btn-cta-primary:hover {
  background-color: var(--color-terracotta-hover);
  color: #FFFFFF;
}

.btn-cta-secondary {
  background-color: transparent;
  border-color: var(--color-slate);
  color: var(--color-slate);
}

.btn-cta-secondary:hover {
  background-color: var(--color-slate);
  color: #FFFFFF;
}

/* Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.stat-card {
  background: var(--color-parchment);
  border: 1px solid var(--color-sandstone);
  border-radius: 6px;
  padding: 20px;
  text-align: center;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-terracotta);
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-label {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-slate);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Tables */
.data-table-container {
  overflow-x: auto;
  margin: 28px 0;
  border: 1px solid var(--color-sandstone);
  border-radius: 6px;
}

.civic-data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-align: left;
}

.civic-data-table th {
  background-color: var(--color-slate);
  color: #FFFFFF;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.civic-data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-sandstone);
  color: var(--color-charcoal);
}

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

/* Interactive Forms */
.civic-form-container {
  background: var(--color-parchment);
  border: 1px solid var(--color-sandstone);
  border-radius: 8px;
  padding: 30px;
  margin: 30px 0;
}

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

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-slate);
  font-weight: 600;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-sandstone);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background: #FFFFFF;
  color: var(--color-charcoal);
  transition: var(--transition-standard);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-terracotta);
  box-shadow: 0 0 0 3px rgba(194, 89, 63, 0.15);
}

.form-help {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: 4px;
}

/* Hero Slider */
.slider-container {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  margin: 30px 0;
  border: 1px solid var(--color-sandstone);
}

.slider-slide {
  display: none;
  padding: 36px;
  background: var(--color-slate);
  color: #FFFFFF;
  min-height: 200px;
}

.slider-slide.active {
  display: block;
  animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.slider-controls {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 14px;
}

.slider-btn {
  background: var(--color-terracotta);
  border: none;
  color: #FFFFFF;
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  min-height: 38px;
}

/* ==========================================================================
   FOOTER ARCHITECTURE
   ========================================================================== */
.site-footer {
  background-color: var(--color-slate);
  color: #CBD5E1;
  margin-top: auto;
  border-top: 4px solid var(--color-terracotta);
  padding: 50px 0 30px;
}

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

.footer-col h4 {
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--color-terracotta);
  padding-bottom: 8px;
  margin-bottom: 16px;
}

.footer-col p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: #94A3B8;
  margin-bottom: 12px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #CBD5E1;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  transition: var(--transition-standard);
  display: inline-block;
  min-height: 32px;
  line-height: 32px;
}

.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 4px;
}

/* Mandatory Disclosure Box */
.mandatory-footer-disclosure {
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 4px solid var(--color-terracotta);
  padding: 20px 24px;
  border-radius: 4px;
  margin-bottom: 30px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  line-height: 1.65;
  color: #E2E8F0;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: #94A3B8;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (MOBILE & TABLET)
   ========================================================================== */
@media (max-width: 992px) {
  #reading-progress-bar {
    display: none !important;
  }

  :root {
    --header-offset: 145px;
  }

  .asymmetric-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .side-rail-logbook {
    position: static;
  }

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

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

  .portal-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-card);
    border-bottom: 2px solid var(--color-slate);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    display: none;
    flex-direction: column;
    padding: 16px 20px;
    align-items: stretch;
  }

  .portal-nav.mobile-open {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 1px solid var(--color-sandstone);
    margin: 6px 0 10px 14px;
    background: var(--color-parchment);
  }

  .nav-link {
    min-height: 44px;
    padding: 12px 14px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-offset: 175px;
  }

  .utility-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 8px 16px;
  }

  .main-navigation-bar {
    padding: 10px 16px;
  }

  .brand-badge {
    max-width: 250px;
    padding: 6px 12px;
  }

  .primary-canvas {
    padding: 24px 18px;
  }

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

  .cta-group {
    flex-direction: column;
  }

  .btn-cta {
    width: 100%;
  }

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