/* ==========================================================================
   STYLE SYSTEM - ASS SAUVEGARDE DU CHATEAU DE VENTADOUR
   Association Loi 1901 | Meyras, Ardèche (RNA W071002140 | SIREN 316487412)
   Charte Typographique & Curatologique Institutionnelle
   ========================================================================== */

:root {
  --color-charcoal: #1C1A17;
  --color-ocher: #C87D55;
  --color-ocher-hover: #AA5F39;
  --color-ocher-subtle: rgba(200, 125, 85, 0.12);
  --color-alabaster: #F9F6F0;
  --color-card-bg: #FFFFFF;
  --color-border: #D9D2C9;
  --color-border-dark: #B8ADA0;
  --color-muted-text: #5A564F;
  --color-dark-bg: #141311;
  --color-tag-bg: #EFE9DF;

  --font-serif: 'Cinzel', 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;

  --nav-height: 72px;
  --utility-height: 38px;
  --total-header-height: 110px;
}

*, *::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-charcoal);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-charcoal);
  background-color: var(--color-alabaster);
  padding-top: var(--total-header-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography Scale */
h1, h2, h3, h4, .serif-title {
  font-family: var(--font-serif);
  color: var(--color-charcoal);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.25rem);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-charcoal);
}

.lead-text {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  font-weight: 400;
}

.mono-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted-text);
  letter-spacing: 0.02em;
}

.mono-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  background-color: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  color: var(--color-charcoal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 3px;
}

.mono-badge.active {
  background-color: var(--color-ocher-subtle);
  border-color: var(--color-ocher);
  color: var(--color-ocher);
  font-weight: bold;
}

/* Links & Buttons */
a {
  color: var(--color-ocher);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-ocher-hover);
  border-color: var(--color-ocher-hover);
  text-decoration: none;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-charcoal) !important;
  border-color: var(--color-border-dark);
}

.btn-outline:hover {
  border-color: var(--color-ocher);
  color: var(--color-ocher) !important;
  background-color: var(--color-ocher-subtle);
  text-decoration: none;
}

.btn-dark {
  background-color: var(--color-charcoal);
  color: var(--color-alabaster) !important;
  border-color: var(--color-charcoal);
}

.btn-dark:hover {
  background-color: #000000;
  text-decoration: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 56px 0;
}

.section-alt {
  background-color: #F2ECE1;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Asymmetrical Grid (1fr : 3fr) */
.asym-grid {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 32px;
  align-items: start;
}

.asym-sidebar {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 24px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.asym-sidebar h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.asym-sidebar .log-entry {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
}

.asym-sidebar .log-entry:last-child {
  border-bottom: none;
}

.asym-sidebar .log-label {
  color: var(--color-muted-text);
  font-size: 0.75rem;
  text-transform: uppercase;
  margin-bottom: 3px;
}

.asym-content {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 36px;
  border-radius: 4px;
}

/* Standard Card */
.content-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 28px;
  border-radius: 4px;
  margin-bottom: 24px;
}

/* Reading Progress Strip */
#reading-progress {
  position: fixed;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
  background-color: rgba(200, 125, 85, 0.2);
  z-index: 10001;
}

#reading-progress-bar {
  width: 100%;
  height: 0%;
  background-color: var(--color-ocher);
}

/* ==========================================================================
   HEADER ARCHITECTURE (Row 1 Utility + Row 2 Main Nav)
   ========================================================================== */
.header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  background-color: #FFFFFF;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

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

.utility-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.utility-bar a {
  color: #F9F6F0;
  text-decoration: underline;
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.utility-info {
  display: flex;
  gap: 20px;
  align-items: center;
}

/* Main Navigation */
.main-nav {
  height: var(--nav-height);
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
}

.main-nav .container {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-logo:hover {
  text-decoration: none;
}

.brand-logo-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-charcoal);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-logo-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ocher);
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-charcoal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color 0.2s ease, background-color 0.2s ease;
  border-radius: 3px;
  min-height: 44px;
}

.nav-link:hover, .nav-item:hover > .nav-link {
  color: var(--color-ocher);
  background-color: var(--color-ocher-subtle);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-ocher);
  font-weight: 700;
}

/* Dropdown Menus */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  min-width: 220px;
  list-style: none;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all 0.2s ease;
  z-index: 10002;
}

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

.dropdown-item {
  display: block;
  padding: 9px 18px;
  font-size: 0.88rem;
  color: var(--color-charcoal);
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
}

.dropdown-item:hover {
  background-color: var(--color-ocher-subtle);
  color: var(--color-ocher);
  border-left-color: var(--color-ocher);
  text-decoration: none;
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  min-width: 44px;
  min-height: 44px;
  cursor: pointer;
  border-radius: 4px;
  color: var(--color-charcoal);
  font-size: 1.25rem;
}

/* ==========================================================================
   HERO BANNER & SLIDER
   ========================================================================== */
.hero-slider-wrap {
  position: relative;
  background-color: var(--color-charcoal);
  color: #FFFFFF;
  overflow: hidden;
  border-bottom: 3px solid var(--color-ocher);
}

.hero-slider-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  display: block;
  filter: brightness(0.65);
}

.hero-slider-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-text-box {
  max-width: 780px;
  background: rgba(28, 26, 23, 0.82);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(217, 210, 201, 0.3);
  padding: 36px;
  border-radius: 4px;
}

.hero-text-box h1 {
  color: #FFFFFF;
  margin-bottom: 14px;
}

.hero-declaration {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #EFEBE3;
  margin-bottom: 24px;
  border-left: 3px solid var(--color-ocher);
  padding-left: 16px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Grid of 4 Pillars */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.pillar-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pillar-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.pillar-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.pillar-body h3 {
  margin-bottom: 12px;
}

.pillar-body p {
  flex-grow: 1;
  font-size: 0.95rem;
}

/* Impact Numbers Grid */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.impact-stat {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 28px 20px;
  text-align: center;
  border-radius: 4px;
}

.impact-num {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--color-ocher);
  line-height: 1;
  margin-bottom: 8px;
}

.impact-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-muted-text);
  letter-spacing: 0.04em;
}

/* Tables & Accounting Ledgers */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-card-bg);
}

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

.ledger-table th {
  background-color: #F2ECE1;
  color: var(--color-charcoal);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 14px 18px;
  border-bottom: 2px solid var(--color-border);
}

.ledger-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

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

.ledger-table tr:hover {
  background-color: #FAF8F5;
}

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

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.92rem;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border-dark);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  background-color: #FFFFFF;
  color: var(--color-charcoal);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-ocher);
  box-shadow: 0 0 0 3px var(--color-ocher-subtle);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* Timeline */
.timeline {
  position: relative;
  margin: 32px 0;
  padding-left: 32px;
  border-left: 2px solid var(--color-ocher);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -39px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-ocher);
  border: 2px solid var(--color-alabaster);
}

.timeline-date {
  font-family: var(--font-mono);
  font-weight: bold;
  color: var(--color-ocher);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

/* Image Presentation */
.article-img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  margin: 20px 0;
  display: block;
}

/* Module Layout */
.module-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin: 36px 0;
  align-items: center;
}

.module-row.reverse {
  direction: rtl;
}

.module-row.reverse > * {
  direction: ltr;
}

.module-img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

/* FAQ Accordions / Details */
details.faq-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-bottom: 12px;
  padding: 16px 20px;
}

details.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 1.05rem;
  color: var(--color-charcoal);
  outline: none;
}

details.faq-item[open] summary {
  color: var(--color-ocher);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

/* ==========================================================================
   FOOTER ARCHITECTURE
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background-color: var(--color-dark-bg);
  color: #D9D2C9;
  border-top: 4px solid var(--color-ocher);
  padding-top: 50px;
  padding-bottom: 24px;
  font-size: 0.92rem;
}

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

.footer-col h4 {
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(217, 210, 201, 0.2);
  padding-bottom: 8px;
}

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

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

.footer-links a {
  color: #D9D2C9;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--color-ocher);
  text-decoration: underline;
}

.footer-meta-block {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: #AAA399;
}

.footer-compliance-bar {
  border-top: 1px solid rgba(217, 210, 201, 0.15);
  padding-top: 24px;
  margin-top: 24px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: #9E968C;
  text-align: justify;
}

.footer-compliance-bar a {
  color: #FFFFFF;
  text-decoration: underline;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 992px) {
  :root {
    --total-header-height: 100px;
  }

  body {
    padding-top: var(--total-header-height);
  }

  #reading-progress {
    display: none !important;
  }

  .utility-info {
    font-size: 11px;
    gap: 10px;
  }

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

  .module-row, .module-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

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

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

  .nav-menu {
    position: fixed;
    top: var(--total-header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--total-header-height));
    background-color: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    overflow-y: auto;
    display: none;
    border-top: 2px solid var(--color-ocher);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 20px;
    background-color: #F7F4EE;
    border-left: 3px solid var(--color-ocher);
    margin-top: 4px;
    margin-bottom: 10px;
  }

  .hero-slider-img {
    height: 420px;
  }

  .hero-text-box {
    padding: 24px;
    margin: 16px;
  }
}

@media (max-width: 768px) {
  .utility-bar .container {
    flex-direction: column;
    height: auto;
    padding: 6px 16px;
    text-align: center;
  }

  .utility-bar {
    height: auto;
    line-height: 1.4;
  }

  :root {
    --total-header-height: 130px;
  }

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

  .hero-slider-img {
    height: 480px;
  }

  .asym-content {
    padding: 20px;
  }

  .btn {
    width: 100%;
  }
}