:root {
  /* UNDP Color Palette */
  --undp-blue: #006eb5;
  --undp-blue-dark: #005687;
  --undp-blue-light: #4f95dd;
  --undp-red: #ee402d;
  --undp-yellow: #ffd100;
  --undp-green: #00ac4f;
  --undp-purple: #a21942;
  --undp-orange: #ff7e00;

  /* Neutral Colors */
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #eeeeee;
  --gray-300: #e0e0e0;
  --gray-400: #bdbdbd;
  --gray-500: #9e9e9e;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;

  /* Typography */
  --font-family: "Proxima Nova", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
  --spacing-3xl: 96px;

  /* Container */
  --container-max-width: 1200px;
  --container-padding: 20px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.18);
}

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

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Hero Section - UNDP Style */
.hero {
  background: linear-gradient(
    135deg,
    var(--undp-blue) 0%,
    var(--undp-blue-dark) 100%
  );
  color: var(--white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-logo {
  width: 60px;
  height: 60px;
  background: var(--white);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

.hero-logo svg {
  width: 40px;
  height: 26px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 300;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

/* Navigation */
.nav {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  justify-content: center;
  padding: var(--spacing-sm) 0;
}

.nav a {
  color: var(--gray-700);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  margin: 0 var(--spacing-xs);
  font-weight: 500;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
}

.nav a:hover {
  color: var(--undp-blue);
  border-bottom-color: var(--undp-blue);
}

/* Section */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-alt {
  background: var(--gray-50);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--undp-blue);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
  line-height: 1.6;
}

/* Introduction Section */
.introduction-section {
  background: var(--white);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--gray-200);
}

.introduction-content {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--gray-700);
  text-align: justify;
}

.introduction-content p {
  margin-bottom: var(--spacing-lg);
}

.introduction-highlight {
  background: linear-gradient(
    120deg,
    rgba(0, 110, 181, 0.1) 0%,
    rgba(0, 110, 181, 0.05) 100%
  );
  padding: var(--spacing-md);
  border-left: 4px solid var(--undp-blue);
  border-radius: 0 8px 8px 0;
  margin: var(--spacing-lg) 0;
  font-style: italic;
}

/* Executive Summary Card */
.executive-summary {
  background: var(--undp-blue);
  color: var(--white);
  border-radius: 12px;
  padding: var(--spacing-2xl);
  margin: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.executive-summary::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  animation: pulse 6s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.1) rotate(180deg);
    opacity: 0.6;
  }
}

.executive-summary-content {
  position: relative;
  z-index: 2;
}

.executive-summary h2 {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: var(--spacing-lg);
  color: var(--white);
}

.executive-summary p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

/* Key Findings Grid - 2x2 Layout */
.key-findings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.finding-card {
  background: rgba(255, 255, 255, 0.15);
  padding: var(--spacing-lg);
  border-radius: 8px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.finding-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.25);
}

.finding-card h4 {
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.finding-card p {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Stats Grid - Proper 4-column layout */
.stats-section {
  background: var(--white);
  padding: var(--spacing-2xl) 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border-top: 3px solid var(--undp-blue);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--undp-blue);
  display: block;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Foundation Stats - 2x2 Grid */
.foundation-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  max-width: 600px;
  margin: var(--spacing-2xl) auto;
}

.foundation-stat-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border-left: 4px solid var(--undp-blue);
}

.foundation-stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.foundation-stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--undp-blue);
  display: block;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.foundation-stat-label {
  font-size: 1rem;
  color: var(--gray-700);
  font-weight: 500;
}

/* Sector Distribution - Better 2x2 Grid */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: var(--spacing-2xl) auto;
}

.sector-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.sector-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--undp-blue), var(--undp-green));
}

.sector-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.sector-number {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--undp-blue);
  display: block;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.sector-label {
  font-size: 1.125rem;
  color: var(--gray-700);
  font-weight: 600;
}

/* Sankey Section */
.sankey-section {
  background: var(--undp-blue);
  color: var(--white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.sankey-container {
  background: var(--white);
  border-radius: 12px;
  padding: var(--spacing-xl);
  margin: var(--spacing-2xl) auto;
  max-width: 1150px;
  box-shadow: var(--shadow-xl);
}

.sankey-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.sankey-stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: 8px;
  border-left: 3px solid var(--undp-blue);
}

.sankey-stat-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--undp-blue);
  display: block;
  line-height: 1;
}

.sankey-stat-label {
  font-size: 0.75rem;
  color: var(--gray-600);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: var(--spacing-xs);
}

/* Career Outcomes - 2x2 Grid */
.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  max-width: 700px;
  margin: var(--spacing-2xl) auto;
}

.outcome-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border-top: 4px solid var(--undp-green);
}

.outcome-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.outcome-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--undp-green);
  display: block;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.outcome-label {
  font-size: 1rem;
  color: var(--gray-700);
  font-weight: 500;
}

/* Profile Cards */
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.profile-card {
  background: var(--white);
  border-radius: 12px;
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border-top: 4px solid var(--undp-blue);
}

.profile-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.profile-name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--undp-blue);
  margin-bottom: var(--spacing-sm);
}

.profile-journey {
  color: var(--gray-600);
  font-style: italic;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--gray-50);
  border-radius: 6px;
  border-left: 3px solid var(--undp-green);
}

.profile-impact {
  background: var(--gray-50);
  padding: var(--spacing-md);
  border-radius: 6px;
  border-left: 3px solid var(--undp-yellow);
  margin-top: var(--spacing-md);
}

/* Competency Cards - 2x2 Grid */
.competency-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.competency-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--undp-blue);
  transition: all 0.3s ease;
}

.competency-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.competency-percentage {
  font-size: 3rem;
  font-weight: 700;
  color: var(--undp-blue);
  margin-bottom: var(--spacing-md);
}

.competency-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--spacing-md);
}

.competency-card ul {
  list-style: none;
  padding: 0;
}

.competency-card li {
  padding: var(--spacing-xs) 0;
  color: var(--gray-600);
  position: relative;
  padding-left: var(--spacing-md);
}

.competency-card li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--undp-green);
  font-weight: bold;
}

/* Quote Section */
.quote-section {
  background: var(--gray-50);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.quote {
  font-size: 1.25rem;
  font-style: italic;
  color: var(--gray-700);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
  padding: var(--spacing-xl);
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--undp-blue);
  position: relative;
}

.quote::before {
  content: '"';
  font-size: 3rem;
  color: var(--undp-blue);
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-md);
  font-family: serif;
  line-height: 1;
}

/* Conclusion Section */
.conclusion-section {
  background: var(--undp-blue);
  color: var(--white);
  padding: var(--spacing-3xl) 0;
}

.success-indicators {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.indicator-card {
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-lg);
  border-radius: 8px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.indicator-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.15);
}

.indicator-card h4 {
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.footer::before {
  content: "";
  display: block;
  height: 4px;
}

/* Visualization Styles */
.node rect {
  cursor: pointer;
  stroke: #fff;
  stroke-width: 2px;
  transition: all 0.3s ease;
}

.node rect:hover {
  stroke-width: 3px;
  opacity: 0.9;
}

.node text {
  pointer-events: none;
  text-shadow: 0 1px 0 #fff;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-family);
}

.link {
  fill: none;
  stroke-opacity: 0.5;
  transition: stroke-opacity 0.3s ease;
}

.link:hover {
  stroke-opacity: 0.8;
}

.tooltip {
  position: absolute;
  background: rgba(33, 33, 33, 0.95);
  color: white;
  padding: var(--spacing-sm);
  border-radius: 6px;
  font-size: 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  border: 1px solid var(--undp-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
  .key-findings {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sector-grid,
  .foundation-stats,
  .outcomes-grid,
  .competency-grid {
    grid-template-columns: 1fr;
  }

  .sankey-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .success-indicators {
    grid-template-columns: 1fr;
  }

  .nav-container {
    flex-wrap: wrap;
  }

  .hero {
    padding: var(--spacing-2xl) 0;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .introduction-content {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .sankey-stats {
    grid-template-columns: 1fr;
  }
}