/* ==========================================================================
   ASSOCIATION DES AMIS DE LA CONSERVATION ET DE LA RESTAURATION 
   DE LA CHAPELLE NOTRE DAME DE MONTGAUZY (FOIX, ARIÈGE)
   Master Stylesheet - Pure CSS Grid & Flexbox Architecture
   Zero External Frameworks • Fully Responsive • Google Ad Grants Compliant
   ========================================================================== */

:root {
  --color-charcoal: #1C1A17;
  --color-charcoal-soft: #2A2622;
  --color-earth-ocher: #C87D55;
  --color-earth-ocher-hover: #B56B45;
  --color-alabaster: #F9F6F0;
  --color-alabaster-card: #FFFFFF;
  --color-border: #D9D2C9;
  --color-border-light: #EBE6DF;
  --color-text-main: #24211E;
  --color-text-muted: #64748B;
  --color-text-soft: #4B463F;
  --color-slate-caption: #64748B;
  --color-accent-gold: #9E6B38;
  --color-surface-tint: #F3EFEA;
  
  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", Courier, monospace;

  --max-content-width: 1200px;
  --max-prose-width: 820px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --shadow-subtle: 0 4px 15px rgba(28, 26, 23, 0.05);
  --shadow-hover: 0 8px 24px rgba(28, 26, 23, 0.09);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-alabaster);
  color: var(--color-text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  background-color: var(--color-alabaster);
  color: var(--color-text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Reading Progress Bar (Fixed Right-Side Indicator) */
#reading-progress-track {
  position: fixed;
  top: 0;
  right: 0;
  width: 4px;
  height: 100vh;
  background: rgba(200, 125, 85, 0.2);
  z-index: 9999;
  pointer-events: none;
}

#reading-progress-bar {
  width: 100%;
  height: 0%;
  background: var(--color-earth-ocher);
  transition: height 0.05s ease-out;
}

@media (max-width: 992px) {
  #reading-progress-track {
    display: none !important;
  }
}

/* Administrative Top Utility Bar */
.admin-utility-bar {
  background: #1C1A17;
  color: #F9F6F0;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.utility-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.utility-left, .utility-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.utility-bar a {
  color: #F9F6F0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

.utility-bar a:hover {
  color: var(--color-earth-ocher);
}

.utility-sep {
  color: rgba(249, 246, 240, 0.4);
}

/* Reinvestment Notice Banner */
.reinvestment-banner {
  background: var(--color-surface-tint);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 20px;
  font-size: 0.85rem;
  color: var(--color-text-soft);
  text-align: center;
  font-family: var(--font-mono);
}

/* Primary Sticky Header Navbar */
.site-header {
  position: sticky;
  top: 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.header-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Brand Wordmark */
.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-charcoal);
  flex-shrink: 0;
}

.brand-symbol {
  width: 40px;
  height: 40px;
  background: var(--color-charcoal);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-earth-ocher);
}

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

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-charcoal);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* Primary Navigation Menu */
.primary-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  text-decoration: none;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--color-text-main);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease-in-out;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-earth-ocher);
  background: rgba(200, 125, 85, 0.08);
}

.nav-link.active {
  color: var(--color-charcoal);
  font-weight: 600;
  border-bottom: 2px solid var(--color-earth-ocher);
  border-radius: 0;
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  background: var(--color-earth-ocher);
  color: #FFFFFF !important;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease, transform 0.1s ease;
  white-space: nowrap;
}

.nav-cta-btn:hover {
  background: var(--color-earth-ocher-hover);
  transform: translateY(-1px);
}

/* Mobile Hamburger Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-charcoal);
  font-size: 1.25rem;
}

/* Mobile Navigation Drawer / Menu */
@media (max-width: 992px) {
  .mobile-nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    border-bottom: 2px solid var(--color-border);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
    gap: 4px;
  }

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

  .nav-link {
    width: 100%;
    min-height: 48px;
    padding: 0 16px;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav-cta-btn {
    width: 100%;
    margin-top: 10px;
    min-height: 48px;
  }
}

/* Main Content Container & Layout */
main {
  flex: 1 0 auto;
}

.content-wrapper {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.editorial-container {
  max-width: var(--max-prose-width);
  margin: 0 auto;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-charcoal);
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text-main);
}

p.lead {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--color-text-soft);
  font-weight: 400;
  margin-bottom: 1.75rem;
}

/* Two-sentence Non-profit Summary Box (Homepage Mandate) */
.hero-mandate-summary {
  background: var(--color-surface-tint);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin: 20px 0 30px;
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-charcoal);
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

/* Explicit 120+ Word 'Our Mission' Card */
.mission-callout-card {
  background: #FFFFFF;
  border: 2px solid var(--color-earth-ocher);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 36px 0;
  box-shadow: var(--shadow-subtle);
  position: relative;
}

.mission-callout-card .mission-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-earth-ocher);
  font-weight: 600;
  display: block;
  margin-bottom: 10px;
}

.mission-callout-card h3 {
  margin-top: 0;
  font-size: 1.6rem;
  color: var(--color-charcoal);
  margin-bottom: 16px;
}

.mission-callout-card p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-charcoal-soft);
  margin-bottom: 0;
}

/* Strict Real Documentary Photography Rules & Figcaption */
.documentary-figure {
  margin: 24px 0 28px;
  display: block;
}

.documentary-photo {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid #E5E7EB;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  margin: 20px 0 8px 0;
  object-fit: cover;
  display: block;
}

.documentary-photo.hero-img {
  max-height: 520px;
  object-position: center;
}

.documentary-caption {
  font-size: 0.875rem;
  color: #64748B;
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.5;
  padding: 0 4px;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin: 32px 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 28px 0;
}

@media (max-width: 992px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Clean White Content Cards with Subtle Border Lines */
.info-card {
  background: var(--color-alabaster-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.info-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.info-card p {
  font-size: 0.975rem;
  line-height: 1.65;
  color: var(--color-text-soft);
  margin-bottom: 12px;
}

.info-card p:last-child {
  margin-bottom: 0;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-earth-ocher);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  font-weight: 600;
}

/* Stat & Impact Metric Boxes */
.stat-box {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-earth-ocher);
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--color-charcoal);
  font-weight: 600;
  margin-bottom: 4px;
}

.stat-desc {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* Timeline & Milestone Components */
.timeline-block {
  border-left: 2px solid var(--color-earth-ocher);
  padding-left: 24px;
  margin: 28px 0 28px 12px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--color-earth-ocher);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-earth-ocher);
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin-bottom: 8px;
}

/* Data Tables for Audit & Financial Transparency */
.table-container {
  overflow-x: auto;
  margin: 24px 0 32px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.data-table th, .data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border-light);
}

.data-table th {
  background: var(--color-surface-tint);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-charcoal);
  font-weight: 600;
}

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

.data-table td.numeric {
  font-family: var(--font-mono);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Buttons & Non-Commercial CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-earth-ocher);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: var(--color-earth-ocher-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-charcoal);
  border: 1px solid var(--color-charcoal);
}

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

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 24px 0;
}

/* Forms & Inputs */
.form-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-subtle);
  margin: 32px 0;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #FAFAFA;
  color: var(--color-text-main);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-earth-ocher);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(200, 125, 85, 0.15);
}

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

.form-help-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* AJAX Modal Confirmation Dialog */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(28, 26, 23, 0.65);
  backdrop-filter: blur(4px);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.is-visible {
  display: flex;
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-window {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 36px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  text-align: center;
  animation: modalScaleUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalScaleUp {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(200, 125, 85, 0.15);
  color: var(--color-earth-ocher);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 16px;
}

.modal-window h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.modal-window p {
  font-size: 0.975rem;
  color: var(--color-text-soft);
  margin-bottom: 24px;
}

/* Global Footer Architecture */
.site-footer {
  background: #1C1A17;
  color: #D9D2C9;
  border-top: 1px solid #2A2622;
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 60px 20px 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.footer-col h4 {
  font-family: var(--font-serif);
  color: #F9F6F0;
  font-size: 1.15rem;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 8px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

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

.footer-col a {
  color: #C0B9AD;
  text-decoration: none;
  font-size: 0.925rem;
  transition: color 0.15s ease;
  display: inline-flex;
  min-height: 32px;
  align-items: center;
}

.footer-col a:hover {
  color: var(--color-earth-ocher);
}

/* Mandatory Global Non-Profit Disclosure Block */
.footer-disclosure-block {
  background: #24211E;
  border: 1px solid #332E29;
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-bottom: 30px;
}

.footer-disclosure-block p {
  color: #E2DDD5;
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 0;
  font-family: var(--font-sans);
}

/* Bottom Copyright & Prefecture Line */
.footer-bottom-line {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #8C8478;
  line-height: 1.6;
}

.footer-bottom-line a {
  color: #C0B9AD;
  text-decoration: underline;
}

.footer-bottom-line a:hover {
  color: var(--color-earth-ocher);
}

/* Accessibility & Print Support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}