/* ==========================================================================
   BIBLIOTHÈQUE D'OUPIA - FEUILLE DE STYLE MAÎTRESSE
   Design: Neo-Brutalist Editorial Hybrid (Loi 1901 - Utilité Publique)
   Millésime : 2026
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@600;700;800&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400;1,6..72,600&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --canvas-bg: #F5F5F0;
  --surface-white: #FFFFFF;
  --structural-ink: #1E293B;
  --ink-muted: #475569;
  --ink-light: #64748B;
  --accent-terracotta: #C2410C;
  --accent-ochre: #4D7C0F;
  --border-line: #1E293B;
  --shadow-block: 4px 4px 0px #1E293B;
  --shadow-block-lg: 6px 6px 0px #1E293B;
  --shadow-block-sm: 2px 2px 0px #1E293B;
  --font-display: 'Cinzel', serif;
  --font-editorial: 'Newsreader', Georgia, serif;
  --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --sidebar-width: 280px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--canvas-bg);
  color: var(--structural-ink);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--canvas-bg);
  color: var(--structural-ink);
  line-height: 1.65;
  overflow-x: hidden;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Master Layout Framework */
.master-layout-grid {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Sidebar Styling */
.site-sidebar {
  width: var(--sidebar-width);
  background: var(--surface-white);
  border-right: 2px solid var(--border-line);
  padding: 30px 20px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-branding {
  border-bottom: 2px solid var(--border-line);
  padding-bottom: 20px;
}

.brand-badge {
  display: inline-block;
  background: var(--structural-ink);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  margin-bottom: 8px;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--structural-ink);
  letter-spacing: 0.02em;
  text-decoration: none;
  display: block;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-top: 6px;
  font-weight: 500;
}

/* Metadata Registry Sub-Card */
.metadata-registry-card {
  background: #FFFBEB;
  border: 1px solid var(--border-line);
  padding: 12px 14px;
  box-shadow: var(--shadow-block-sm);
  font-size: 0.75rem;
  line-height: 1.5;
}

.registry-item {
  margin-bottom: 4px;
}

.registry-item strong {
  color: var(--structural-ink);
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.registry-link {
  color: var(--accent-terracotta);
  text-decoration: underline;
  font-weight: 600;
}

/* Directory Tree Navigation */
.nav-directory-tree {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-category {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-category-header {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-light);
  border-bottom: 1px dashed var(--border-line);
  padding-bottom: 4px;
  margin-bottom: 4px;
}

.nav-link {
  display: block;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--structural-ink);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.15s ease, border-left-color 0.15s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-link:hover {
  background: #F1F5F9;
  border-left-color: var(--accent-terracotta);
}

.nav-link.active {
  background: var(--structural-ink);
  color: #FFFFFF;
  border-left-color: var(--accent-terracotta);
  box-shadow: var(--shadow-block-sm);
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: var(--structural-ink);
  color: #FFFFFF;
  border: 1px solid var(--border-line);
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-block-sm);
}

/* Main Content Wrapper */
.main-content-canvas {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  justify-content: space-between;
  background: var(--canvas-bg);
  width: 100%;
}

.content-body {
  padding: 48px 48px 64px 48px;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
}

/* Typography & Neo-Brutalist Components */
h1, h2, h3, h4, h5, h6 {
  color: var(--structural-ink);
  font-weight: 700;
  line-height: 1.2;
}

.display-title-1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.8vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.display-title-2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.display-title-3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.editorial-lead {
  font-family: var(--font-editorial);
  font-size: 1.28rem;
  line-height: 1.6;
  color: var(--structural-ink);
  margin-bottom: 24px;
}

.editorial-paragraph {
  font-family: var(--font-editorial);
  font-size: 1.08rem;
  line-height: 1.75;
  color: #1F2937;
  margin-bottom: 20px;
}

.editorial-paragraph p {
  margin-bottom: 16px;
}

/* Section Containers & Cards */
.neo-card {
  background: var(--surface-white);
  border: 1px solid var(--border-line);
  padding: 28px;
  box-shadow: var(--shadow-block);
  margin-bottom: 32px;
}

.neo-card-accent {
  background: #FFF7ED;
  border: 1px solid var(--border-line);
  padding: 28px;
  box-shadow: var(--shadow-block);
  margin-bottom: 32px;
}

.neo-card-dark {
  background: var(--structural-ink);
  color: #FFFFFF;
  border: 1px solid var(--border-line);
  padding: 32px;
  box-shadow: 4px 4px 0px #C2410C;
  margin-bottom: 32px;
}

.neo-card-dark h2, .neo-card-dark h3 {
  color: #FFFFFF;
}

.neo-card-dark p {
  color: #E2E8F0;
}

/* Dedicated Mission Block */
.dedicated-mission-block {
  background: #FEF3C7;
  border: 2px solid var(--border-line);
  padding: 32px;
  box-shadow: var(--shadow-block-lg);
  margin-bottom: 40px;
  position: relative;
}

.dedicated-mission-badge {
  position: absolute;
  top: -14px;
  left: 28px;
  background: var(--accent-terracotta);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border: 1px solid var(--border-line);
}

.dedicated-mission-text {
  font-family: var(--font-editorial);
  font-size: 1.15rem;
  font-style: italic;
  line-height: 1.8;
  color: #1E293B;
  font-weight: 500;
}

/* Buttons */
.btn-neo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid var(--border-line);
  background: var(--structural-ink);
  color: #FFFFFF;
  box-shadow: var(--shadow-block);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  min-height: 44px;
  min-width: 140px;
}

.btn-neo:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-block-lg);
  color: #FFFFFF;
}

.btn-neo-accent {
  background: var(--accent-terracotta);
  color: #FFFFFF;
}

.btn-neo-outline {
  background: var(--surface-white);
  color: var(--structural-ink);
}

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

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

.grid-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

/* Image Presentation in Neo-Brutalist Layout */
.neo-img-frame {
  border: 1px solid var(--border-line);
  box-shadow: var(--shadow-block);
  background: #FFFFFF;
  margin-bottom: 24px;
  overflow: hidden;
}

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

/* Tables */
.neo-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
  background: #FFFFFF;
  border: 1px solid var(--border-line);
  box-shadow: var(--shadow-block);
}

.neo-table th {
  background: var(--structural-ink);
  color: #FFFFFF;
  text-align: left;
  padding: 12px 16px;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--border-line);
}

.neo-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #E2E8F0;
  color: var(--structural-ink);
}

.neo-table tr:nth-child(even) td {
  background: #F8FAFC;
}

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

.neo-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  color: var(--structural-ink);
}

.neo-input, .neo-textarea, .neo-select {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  border: 1px solid var(--border-line);
  background: #FFFFFF;
  box-shadow: var(--shadow-block-sm);
  outline: none;
  min-height: 44px;
}

.neo-input:focus, .neo-textarea:focus, .neo-select:focus {
  border-color: var(--accent-terracotta);
  box-shadow: var(--shadow-block);
}

/* Mega Footer */
.architectural-mega-footer {
  background: #FFFFFF;
  border-top: 2px solid var(--border-line);
  padding: 60px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  box-sizing: border-box;
  width: 100%;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent-terracotta);
}

.footer-col p {
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--structural-ink);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
  min-height: 24px;
  display: inline-block;
}

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

.footer-trust-baseline {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border-line);
  padding-top: 24px;
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

.footer-trust-baseline a {
  color: var(--accent-terracotta);
  font-weight: 600;
  text-decoration: underline;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .master-layout-grid {
    grid-template-columns: 240px 1fr;
  }
  :root {
    --sidebar-width: 240px;
  }
  .content-body {
    padding: 32px 24px;
  }
  .grid-4col {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3col {
    grid-template-columns: repeat(2, 1fr);
  }
  .architectural-mega-footer {
    grid-template-columns: repeat(2, 1fr);
    padding: 40px 24px;
  }
}

@media (max-width: 768px) {
  .master-layout-grid {
    display: block;
  }
  .site-sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 2px solid var(--border-line);
    padding: 20px;
  }
  .mobile-nav-toggle {
    display: block;
    margin-top: 12px;
  }
  .nav-directory-tree {
    display: none;
    margin-top: 16px;
  }
  .nav-directory-tree.open {
    display: flex;
  }
  .content-body {
    padding: 24px 16px;
  }
  .grid-2col, .grid-3col, .grid-4col {
    grid-template-columns: 1fr;
  }
  .architectural-mega-footer {
    grid-template-columns: 1fr;
    padding: 30px 16px;
  }
}

@media (max-width: 480px) {
  .content-body {
    padding: 20px 12px;
  }
  .display-title-1 {
    font-size: 1.8rem;
  }
  .neo-card, .neo-card-accent, .neo-card-dark, .dedicated-mission-block {
    padding: 20px 16px;
  }
  .btn-neo {
    width: 100%;
  }
}