/* ==========================================================================
   CLUB DE PLONGEE LES AIGLES DES MERS - ASSOCIATION LOI 1901
   DESIGN SYSTEM & INSTITUTIONAL CURATOR STYLESHEET
   Palette: Raw Charcoal (#1C1A17), Earth Ocher (#C87D55), Alabaster Paper (#F9F6F0),
            White (#FFFFFF), Border lines (#D9D2C9)
   ========================================================================== */

:root {
  --color-charcoal: #1C1A17;
  --color-charcoal-light: #2E2B26;
  --color-ocher: #C87D55;
  --color-ocher-hover: #b26841;
  --color-ocher-soft: rgba(200, 125, 85, 0.12);
  --color-alabaster: #F9F6F0;
  --color-alabaster-card: #FFFFFF;
  --color-border: #D9D2C9;
  --color-border-dark: #8F877D;
  --color-text-muted: #5C574F;
  --font-display: 'Cinzel', serif;
  --font-body: 'Lora', Georgia, serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --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);
  line-height: 1.65;
  background-color: var(--color-alabaster);
  color: var(--color-charcoal);
  padding-top: var(--header-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   READING PROGRESS STRIP
   ========================================================================== */
.reading-progress-track {
  position: fixed;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
  background: rgba(200, 125, 85, 0.2);
  z-index: 10001;
  pointer-events: none;
}

.reading-progress-bar {
  width: 100%;
  height: 0%;
  background: var(--color-ocher);
  transition: height 0.05s linear;
}

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

/* ==========================================================================
   STICKY HEADER ARCHITECTURE
   ========================================================================== */
.header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  box-shadow: 0 2px 10px rgba(28, 26, 23, 0.08);
}

/* Row 1: Utility Bar */
.utility-bar {
  background: #1C1A17;
  color: #F9F6F0;
  height: 38px;
  font-family: var(--font-mono);
  font-size: 13px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(217, 210, 201, 0.2);
}

.utility-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.utility-badge {
  color: var(--color-ocher);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.utility-sep {
  opacity: 0.35;
}

.utility-right a {
  color: #F9F6F0;
  text-decoration: none;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.2s ease;
}

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

/* Row 2: Main Navigation Bar */
.main-nav-bar {
  background: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
  height: 72px;
  display: flex;
  align-items: center;
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo-area {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--color-charcoal);
}

.brand-symbol {
  width: 44px;
  height: 44px;
  background: var(--color-charcoal);
  color: #F9F6F0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  border: 1px solid var(--color-ocher);
}

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

.brand-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ocher);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Navigation Links */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-charcoal);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-item:hover > .nav-link, .nav-link.active {
  color: var(--color-ocher);
  background-color: var(--color-ocher-soft);
}

/* Dropdowns */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 24px rgba(28, 26, 23, 0.1);
  min-width: 220px;
  list-style: none;
  padding: 8px 0;
  border-radius: 6px;
  display: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-item:hover .nav-dropdown {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-charcoal);
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.dropdown-link:hover {
  background-color: var(--color-alabaster);
  color: var(--color-ocher);
  padding-left: 22px;
}

/* Nav Action Button */
.nav-btn-action {
  background: var(--color-ocher);
  color: #FFFFFF !important;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  transition: background 0.2s ease;
  white-space: nowrap;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav-btn-action:hover {
  background: var(--color-ocher-hover);
  color: #FFFFFF !important;
}

/* Mobile Toggle */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.toggle-icon-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-charcoal);
  margin: 5px auto;
  transition: all 0.3s ease;
}

/* Mobile Nav Drawer */
.mobile-nav-panel {
  display: none;
  background: #FFFFFF;
  border-bottom: 2px solid var(--color-ocher);
  padding: 20px 24px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}

.mobile-nav-panel.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-nav-group-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--color-ocher);
  letter-spacing: 1px;
  margin-top: 8px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 4px;
}

.mobile-nav-item a {
  display: block;
  min-height: 44px;
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-charcoal);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 210, 201, 0.4);
}

.mobile-nav-item a:hover {
  color: var(--color-ocher);
}

/* ==========================================================================
   PAGE LAYOUT & ASYMMETRICAL GRID (1fr 3fr)
   ========================================================================== */
.main-content {
  flex: 1;
}

.site-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px;
}

.asym-layout {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 36px;
  margin-top: 32px;
}

.sidebar-curator-log {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  align-self: start;
  position: sticky;
  top: 130px;
}

.log-heading {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-ocher);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.log-meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
}

.log-meta-list li strong {
  color: var(--color-charcoal);
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.log-divider {
  height: 1px;
  background: var(--color-border);
  margin: 20px 0;
}

.main-column {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 40px;
}

/* Typography Standards */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-charcoal);
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

h2 {
  font-size: 1.6rem;
  margin-top: 32px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 8px;
}

h3 {
  font-size: 1.25rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-charcoal);
}

.lead-declaration {
  font-size: 1.2rem;
  line-height: 1.75;
  color: var(--color-charcoal);
  background: var(--color-alabaster);
  border-left: 4px solid var(--color-ocher);
  padding: 20px 24px;
  margin-bottom: 30px;
  font-style: italic;
}

/* Buttons and Action Links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.2s ease;
  min-height: 44px;
  cursor: pointer;
  border: none;
}

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

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

.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;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0;
}

/* Images & Visual Frames */
.article-image-frame {
  margin: 28px 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  background: #000;
}

.article-image-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 480px;
}

/* Data Grids & Metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.metric-card {
  background: var(--color-alabaster);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 22px;
  text-align: center;
}

.metric-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-ocher);
  display: block;
  margin-bottom: 6px;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-charcoal);
}

/* Monospace Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.curator-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13px;
  background: #FFFFFF;
}

.curator-table th {
  background: var(--color-charcoal);
  color: #FFFFFF;
  text-align: left;
  padding: 14px 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.curator-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-charcoal);
}

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

.curator-table tr:hover td {
  background: var(--color-ocher-soft);
}

/* Institutional Form */
.institutional-form {
  background: var(--color-alabaster);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 32px;
  margin: 28px 0;
}

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

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-charcoal);
  margin-bottom: 8px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-charcoal);
  min-height: 44px;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-ocher);
  box-shadow: 0 0 0 3px var(--color-ocher-soft);
}

.form-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* Feature Pillars Grid */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.pillar-card {
  background: var(--color-alabaster);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.pillar-card-body {
  padding: 24px;
  flex: 1;
}

.pillar-card-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

/* Timeline & Historical logs */
.timeline-list {
  list-style: none;
  position: relative;
  margin: 28px 0;
  padding-left: 28px;
  border-left: 2px solid var(--color-border);
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -35px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-ocher);
  border: 2px solid #FFFFFF;
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-ocher);
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

/* ==========================================================================
   FOOTER ARCHITECTURE
   ========================================================================== */
.site-footer {
  background: #1C1A17;
  color: #F9F6F0;
  border-top: 3px solid var(--color-ocher);
  margin-top: 60px;
  font-size: 14px;
}

.footer-top-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-ocher);
  margin-bottom: 16px;
}

.footer-desc {
  color: #D9D2C9;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #F9F6F0;
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
  display: inline-block;
  min-height: 28px;
}

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

.footer-meta-block {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #D9D2C9;
  line-height: 1.8;
}

/* Mandatory String Container */
.footer-mandatory-bar {
  background: #13110F;
  border-top: 1px solid rgba(217, 210, 201, 0.15);
  padding: 24px;
}

.footer-mandatory-inner {
  max-width: 1280px;
  margin: 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: #B5AEA4;
  text-align: center;
}

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

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 992px) {
  :root {
    --header-height: 100px;
  }
  
  .utility-left .utility-extra {
    display: none;
  }
  
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .asym-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .sidebar-curator-log {
    position: static;
  }
  
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 96px;
  }
  
  .utility-bar {
    font-size: 11px;
  }
  
  .brand-name {
    font-size: 14px;
  }
  
  .main-column {
    padding: 24px 18px;
  }
  
  .site-container {
    padding: 24px 16px;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.4rem;
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}