* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Inter', sans-serif;
  background-color: #f8fafc;
  color: #0f172a;
  line-height: 1.5;
  scroll-behavior: smooth;
}
.navbar {
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.9rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-weight: 700;
  font-size: 1.3rem;
  color: #1e3a5f;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo i { color: #2c7da0; }
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links li a {
  text-decoration: none;
  font-weight: 500;
  color: #1e293b;
  transition: 0.2s;
  font-size: 0.95rem;
}
.nav-links li a:hover, .nav-links li a.active {
  color: #2c7da0;
  border-bottom: 2px solid #2c7da0;
  padding-bottom: 0.25rem;
}
.burger {
  display: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: #1e3a5f;
}
.hero {
  background: linear-gradient(135deg, #0f2c3f 0%, #1b4a6e 100%);
  color: white;
  padding: 4rem 2rem;
  position: relative;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  top:0; left:0; width:100%; height:100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 800" opacity="0.05"><path fill="white" d="M0,0 L800,0 L800,800 L0,800 Z M300,200 L500,200 L400,350 Z"/></svg>');
  background-repeat: repeat;
  opacity: 0.1;
}
.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.hero-badge {
  background: rgba(255,255,255,0.2);
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 1.2rem;
}
.hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  max-width: 800px;
  margin-bottom: 1rem;
}
.hero-sub {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 650px;
  margin-bottom: 2rem;
}
.hero-stats {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.stat-item {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  border-radius: 20px;
  padding: 0.8rem 1.5rem;
  text-align: center;
}
.stat-number {
  font-weight: 800;
  font-size: 1.7rem;
  display: block;
}
.container {
  max-width: 1280px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}
.section-card {
  background: white;
  border-radius: 32px;
  box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05);
  padding: 2rem;
  margin-bottom: 2.5rem;
  transition: 0.2s;
}
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.8rem;
  flex-wrap: wrap;
}
.section-icon {
  font-size: 2rem;
  color: #2c7da0;
}
.section-header h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: #0f2c3f;
}
.header-line {
  height: 3px;
  background: #2c7da0;
  width: 60px;
  border-radius: 3px;
  margin-left: auto;
}
.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}
.reverse {
  direction: rtl;
}
.reverse .text-content, .reverse .chart-card {
  direction: ltr;
}
.text-content p {
  margin-bottom: 1rem;
  color: #2d3a4b;
}
.chart-card {
  background: #f9f9fc;
  border-radius: 28px;
  padding: 1rem;
}
.chart-caption {
  font-size: 0.8rem;
  text-align: center;
  color: #5b6e8c;
  margin-top: 0.5rem;
}
.lead-text {
  font-size: 1.05rem;
  background: #eef2ff;
  padding: 0.75rem 1.5rem;
  border-radius: 48px;
  color: #1e3a5f;
  margin-bottom: 1.8rem;
}
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 1.8rem;
  margin-top: 1rem;
}
.chart-box {
  background: #ffffff;
  border-radius: 24px;
  padding: 1rem;
  border: 1px solid #e9edf2;
}
.chart-box h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: #1f3b4c;
}
.stats-grid {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: space-around;
  background: #f1f5f9;
  border-radius: 2rem;
  padding: 1.2rem;
  margin: 1.8rem 0;
}
.stat-block {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: white;
  padding: 0.7rem 1.5rem;
  border-radius: 60px;
}
.stat-block i {
  font-size: 1.8rem;
  color: #2c7da0;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: white;
  border-radius: 20px;
  overflow: hidden;
}
.data-table th, .data-table td {
  border-bottom: 1px solid #e2e8f0;
  padding: 0.9rem 0.8rem;
  text-align: left;
}
.data-table th {
  background: #eef2ff;
}
.highlight-box {
  background: #e6f7ff;
  border-left: 5px solid #2c7da0;
  padding: 1rem;
  border-radius: 18px;
  margin-top: 1.2rem;
  display: flex;
  gap: 0.7rem;
  align-items: center;
}
.note-info {
  background: #fef9e3;
  padding: 0.8rem 1.2rem;
  border-radius: 24px;
  margin-top: 1rem;
  font-size: 0.85rem;
  display: flex;
  gap: 0.6rem;
}
.grid-reco {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
  margin-bottom: 1.6rem;
}
.reco-block {
  background: #f9fbfe;
  border-radius: 28px;
  padding: 1.3rem 1.8rem;
  border: 1px solid #e4e9f0;
}
.reco-block i {
  font-size: 1.8rem;
  color: #2c7da0;
  margin-bottom: 0.7rem;
}
.reco-block ul {
  list-style: none;
  padding-left: 0;
}
.reco-block li {
  margin-bottom: 0.5rem;
  padding-left: 1.2rem;
  position: relative;
}
.reco-block li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: #2c7da0;
}
.citation {
  background: #f1f4f9;
  padding: 1.2rem 2rem;
  border-radius: 50px;
  font-style: italic;
  font-weight: 500;
  margin-top: 1rem;
}
.footer {
  background: #0f2c3f;
  color: #cddfe7;
  text-align: center;
  padding: 2rem;
  margin-top: 2rem;
  font-size: 0.85rem;
}
.footer-small {
  margin-top: 0.5rem;
  opacity: 0.7;
}
@media (max-width: 820px) {
  .two-columns, .grid-reco { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; width: 100%; background: white; padding: 1rem; }
  .nav-links.active { display: flex; }
  .burger { display: block; }
  .section-card { padding: 1.5rem; }
}