/* Pacific Ocean & Climate Nexus - Photorealistic Luminous Ocean Design System */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  /* Luminous Pacific Tropical Palette (Ultra-Clear & High-Contrast) */
  --bg-dark: #F0F9FF;
  --bg-card: rgba(255, 255, 255, 0.94);
  --bg-card-hover: rgba(255, 255, 255, 0.99);
  --border-glass: rgba(0, 180, 216, 0.22);
  
  /* Dataviz Accents */
  --color-cyan: #00B4D8;
  --color-cyan-glow: rgba(0, 180, 216, 0.35);
  --color-coral: #E63946;
  --color-coral-glow: rgba(230, 57, 70, 0.35);
  
  /* High Contrast Typography */
  --text-main: #0A192F;
  --text-muted: #334155;
  --text-dim: #64748B;
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --shadow-card: 0 12px 35px -5px rgba(0, 119, 182, 0.12);
  --shadow-glow: 0 10px 30px rgba(0, 180, 216, 0.25);
  --shadow-coral: 0 10px 30px rgba(230, 57, 70, 0.25);
  
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
}

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

/* Background Interactive Wave & Constellation Canvas */
#wave-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  opacity: 0.85;
}

body {
  margin: 0;
  padding: 0;
  background: linear-gradient(180deg, #E0F7FC 0%, #F0F9FF 50%, #E8F5E9 100%);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

.header, .hero, .tabs-nav, .main-container, .footer {
  position: relative;
  z-index: 2;
}

/* Hero Header Section WITH REAL PACIFIC OCEAN SUNSET BACKGROUND IMAGE */
.hero-header {
  position: relative;
  z-index: 10;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.5rem 4rem;
  background: 
    linear-gradient(180deg, rgba(240, 249, 255, 0.78) 0%, rgba(224, 247, 252, 0.90) 80%, var(--bg-dark) 100%),
    url('public/images/pacific_hero_bg.jpg') no-repeat center center / cover;
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 15px 40px rgba(0, 119, 182, 0.15);
  overflow: hidden;
}

/* Glass Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-logo-glow {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0077B6 0%, var(--color-cyan) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  color: #FFF;
  box-shadow: 0 0 25px var(--color-cyan-glow);
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: #0077B6;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* Controls Header */
.header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(12px);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  box-shadow: 0 4px 15px rgba(0, 119, 182, 0.08);
}

.control-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 700;
}

.select-input, .btn-action {
  background: #FFFFFF;
  color: var(--text-main);
  border: 1px solid var(--border-glass);
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  outline: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.select-input:hover, .btn-action:hover {
  border-color: #0077B6;
  box-shadow: 0 0 15px var(--color-cyan-glow);
}

.btn-action {
  background: linear-gradient(135deg, #0077B6 0%, var(--color-cyan) 100%);
  color: #FFFFFF;
  font-weight: 800;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-glow);
}

/* Hero Content Grid (2 Columns: Left = Headline/Stats, Right = Human Grid & Chapter Nav) */
.hero-body-grid {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 3.5rem;
  align-items: center;
  margin: 2.5rem 0;
  width: 100%;
}

.hero-left-col {
  display: flex;
  flex-direction: column;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(230, 57, 70, 0.12);
  border: 1px solid var(--color-coral);
  color: var(--color-coral);
  padding: 0.45rem 1.1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.25rem;
  width: fit-content;
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: 3.3rem;
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

.hero-headline span {
  background: linear-gradient(135deg, #0077B6 0%, var(--color-coral) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 800px;
  font-weight: 500;
}

.hero-stats-row {
  display: flex;
  gap: 3rem;
  align-items: center;
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 900;
  color: #0077B6;
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 0.3rem;
}

/* Right Column: Prominent Enlarged Chapter Navigation Buttons */
.hero-right-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Human Dot Grid Visualizer */
.human-grid-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 119, 182, 0.08);
}

.human-grid-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  color: #0077B6;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.human-dots {
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  gap: 6px;
  margin-bottom: 0.5rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0, 119, 182, 0.15);
  transition: all 0.3s ease;
}

.dot.threatened {
  background: var(--color-coral);
  box-shadow: 0 0 8px var(--color-coral-glow);
  animation: pulseDot 2s infinite alternate;
}

@keyframes pulseDot {
  from { opacity: 0.6; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1.1); }
}

.hero-nav-hint {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 0.6rem;
}

.hero-nav-buttons-right {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  width: 100%;
}

.hero-nav-btn-large {
  background: #FFFFFF;
  backdrop-filter: blur(12px);
  color: var(--text-main);
  border: 1px solid var(--border-glass);
  padding: 0.9rem 1.4rem;
  border-radius: 14px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 6px 20px rgba(0, 119, 182, 0.08);
  width: 100%;
  text-align: left;
}

.hero-nav-btn-large i {
  font-size: 1.2rem;
  color: #0077B6;
  width: 26px;
  text-align: center;
  transition: transform 0.3s ease;
}

.hero-nav-btn-large:hover {
  background: #0077B6;
  color: #FFFFFF;
  border-color: #0077B6;
  transform: translateX(8px);
  box-shadow: var(--shadow-glow);
}

.hero-nav-btn-large:hover i {
  color: #FFFFFF;
  transform: scale(1.2);
}

/* Special Highlighted Simulator Button */
.hero-nav-btn-large.btn-sim-large {
  background: linear-gradient(135deg, var(--color-coral) 0%, #FF8E53 100%);
  color: #FFFFFF;
  border: none;
  box-shadow: var(--shadow-coral);
}

.hero-nav-btn-large.btn-sim-large i {
  color: #FFFFFF;
}

.hero-nav-btn-large.btn-sim-large:hover {
  background: linear-gradient(135deg, #D62828 0%, #F4A261 100%);
  transform: translateX(8px);
  box-shadow: 0 12px 30px rgba(230, 57, 70, 0.45);
}

.preset-period-btn {
  background: rgba(0, 119, 182, 0.12);
  color: var(--color-ocean-blue);
  border: 1px solid rgba(0, 119, 182, 0.25);
  border-radius: 14px;
  padding: 0.25rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.preset-period-btn:hover {
  background: var(--color-ocean-blue);
  color: #FFFFFF;
  border-color: var(--color-ocean-blue);
}

.btn-expand-chart {
  background: rgba(0, 119, 182, 0.1);
  color: var(--color-ocean-blue);
  border: 1px solid rgba(0, 119, 182, 0.2);
  border-radius: 6px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.btn-expand-chart:hover {
  background: var(--color-ocean-blue);
  color: #FFFFFF;
  transform: scale(1.08);
}

/* ==========================================================================
   PROFESSIONAL PRINT STYLESHEET (@media print)
   ========================================================================== */
@media print {
  @page {
    size: A4 portrait;
    margin: 1.5cm;
  }

  body {
    background: #FFFFFF !important;
    color: #0A192F !important;
    font-size: 10pt !important;
  }

  /* Hide Interactive Backgrounds, Controls, Navigation and Modals */
  #wave-canvas,
  .hero-nav-btn-large,
  .tabs-nav,
  .btn-export,
  .btn-expand-chart,
  .preset-period-btn,
  .modal-overlay,
  #country-filter,
  #subregion-filter,
  #start-year-slider,
  #end-year-slider {
    display: none !important;
  }

  /* Display ALL Tabs Sequentially on Print / PDF Export */
  .tab-content {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    page-break-after: always;
    margin-bottom: 2rem;
  }

  .main-container {
    padding: 0 !important;
  }

  .glass-card {
    background: #FFFFFF !important;
    border: 1px solid #CBD5E1 !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    page-break-inside: avoid;
    margin-bottom: 1.5rem !important;
    padding: 1.2rem !important;
  }

  .chart-container {
    height: 320px !important;
  }

  .header {
    background: #FFFFFF !important;
    color: #0A192F !important;
    border-bottom: 2px solid #0077B6 !important;
    box-shadow: none !important;
  }

  .kpi-card {
    background: #F8FAFC !important;
    border: 1px solid #E2E8F0 !important;
  }

  .human-grid-card {
    background: #F8FAFC !important;
    border: 1px solid #E2E8F0 !important;
  }
}

/* Sticky Navigation Bar (Luminous Theme) */
.tabs-nav {
  display: flex;
  gap: 0.6rem;
  padding: 0.85rem 4rem;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  overflow-x: auto;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 119, 182, 0.08);
}

.tab-btn {
  background: #FFFFFF;
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  white-space: nowrap;
  transition: all 0.3s ease;
}

.tab-btn:hover {
  color: #0077B6;
  background: #F0F9FF;
  border-color: #0077B6;
  transform: translateY(-2px);
}

.tab-btn.active {
  background: linear-gradient(135deg, #0077B6 0%, var(--color-cyan) 100%);
  color: #FFFFFF;
  border-color: #0077B6;
  font-weight: 800;
  box-shadow: var(--shadow-glow);
}

/* Main Container ABOVE CANVAS (z-index 20) */
.main-container {
  position: relative;
  z-index: 20;
  padding: 2rem 4rem;
  max-width: 1700px;
  margin: 0 auto;
}

.tab-content {
  display: none;
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.tab-content.active {
  display: block;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* KPI Cards (High Contrast Luminous Glass) */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
}

.kpi-card:hover {
  transform: translateY(-5px);
  border-color: #0077B6;
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
}

.kpi-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
}

.kpi-coral { color: var(--color-coral); background: rgba(230, 57, 70, 0.12); }
.kpi-cyan { color: #0077B6; background: rgba(0, 180, 216, 0.12); }

.kpi-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--text-main);
  line-height: 1.2;
}

.kpi-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 700;
}

.kpi-trend {
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.trend-up { color: var(--color-coral); }
.trend-down { color: #0077B6; }

/* Dashboard Grids */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
  margin-bottom: 2rem;
}

.grid-3col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.75rem;
  margin-bottom: 2rem;
}

@media (max-width: 1200px) {
  .grid-2col, .grid-3col { grid-template-columns: 1fr; }
  .hero-header { padding: 2rem; min-height: auto; }
  .hero-body-grid { grid-template-columns: 1fr; }
  .main-container, .tabs-nav { padding: 1.5rem 2rem; }
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.glass-card:hover {
  border-color: #0077B6;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(0, 119, 182, 0.12);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-title i {
  color: #0077B6;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 360px;
}

/* Leaflet GIS Map Styling */
#map {
  width: 100%;
  height: 520px;
  border-radius: var(--radius-md);
  z-index: 1;
}

/* Time Scrubber Card */
.time-scrubber-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  padding: 1.4rem 2.5rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  box-shadow: var(--shadow-card);
}

.scrubber-label {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: #0077B6;
  white-space: nowrap;
}

.scrubber-slider {
  flex-grow: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 10px;
  border-radius: 5px;
  background: rgba(0, 119, 182, 0.15);
  outline: none;
}

.scrubber-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0077B6 0%, var(--color-cyan) 100%);
  cursor: pointer;
  box-shadow: 0 0 15px var(--color-cyan-glow);
  transition: transform 0.2s ease;
}

.scrubber-slider::-webkit-slider-thumb:hover {
  transform: scale(1.3);
}

.scrubber-val {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: #0077B6;
  min-width: 70px;
  text-align: right;
}

/* Simulator Box */
.sim-box {
  background: rgba(0, 180, 216, 0.08);
  border: 1px solid #0077B6;
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

/* Quotes Card */
.quote-card {
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.08) 0%, rgba(230, 57, 70, 0.08) 100%);
  border-left: 4px solid #0077B6;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
}

.quote-text {
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-main);
  font-weight: 500;
  margin-bottom: 0.6rem;
}

.quote-author {
  font-weight: 800;
  font-size: 0.88rem;
  color: #0077B6;
}

/* Quiz Glassmorphism Translucency (Permet de voir l'animation des vagues en arrière-plan) */
.quiz-glass-card {
  background: rgba(255, 255, 255, 0.48) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid rgba(0, 180, 216, 0.35) !important;
  box-shadow: 0 15px 40px rgba(0, 119, 182, 0.14) !important;
}

.quiz-opt-btn {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  color: #0A192F !important;
  border: 1px solid var(--border-glass);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(0, 119, 182, 0.05);
}

.quiz-opt-btn:hover {
  background: rgba(0, 180, 216, 0.1);
  border-color: #0077B6;
  transform: translateX(5px);
}

.quiz-opt-btn.correct {
  background: rgba(42, 157, 143, 0.25) !important;
  color: #0A192F !important;
  font-weight: 800;
}

.quiz-opt-btn.incorrect {
  background: rgba(230, 57, 70, 0.2) !important;
  color: #0A192F !important;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(10, 25, 47, 0.65);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal-content {
  max-width: 750px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

/* Footer */
footer {
  position: relative;
  z-index: 20;
  text-align: center;
  padding: 2.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-glass);
  margin-top: 4rem;
  background: rgba(255, 255, 255, 0.95);
}

footer a {
  color: #0077B6;
  font-weight: 700;
  text-decoration: none;
}