body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #263238;
  background: #f4f7fb;
  font-size: 18px;
  line-height: 1.75;
}

.site-header {
  background: linear-gradient(135deg, #1b5e20, #2e7d68);
  color: #fff;
  padding: 34px 18px;
  text-align: center;
}

.site-header h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.35;
}

.site-header p {
  max-width: 760px;
  margin: 10px auto 0;
  opacity: .94;
}

.wrap {
  max-width: 900px;
  margin: 28px auto;
  padding: 0 16px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.article-card,
.panel {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
}

.article-card {
  display: block;
  padding: 18px;
  color: #263238;
  text-decoration: none;
  min-height: 168px;
}

.article-card:hover {
  transform: translateY(-2px);
}

.article-card strong {
  display: block;
  color: #1b5e20;
  font-size: 19px;
  line-height: 1.45;
  margin-bottom: 8px;
}

.article-card span,
.lead,
.note {
  color: #546e7a;
}

.panel {
  padding: 22px;
  margin-bottom: 18px;
}

.hero-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

.eyebrow {
  color: #2e7d68;
  font-weight: bold;
  margin-bottom: 8px;
}

h2 {
  font-size: 24px;
  line-height: 1.45;
  margin: 30px 0 12px;
}

.points {
  padding-left: 22px;
}

.chart-box {
  height: 340px;
}

.nav-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 22px;
}

.nav-links a {
  display: block;
  padding: 16px;
  border-radius: 8px;
  text-align: center;
  text-decoration: none;
  color: #000;
  font-weight: bold;
}

.home-link {
  background: #b9f6ca;
}

.articles-link {
  background: #bbdefb;
}

@media (max-width: 760px) {
  body {
    font-size: 16px;
    line-height: 1.7;
  }

  .site-header {
    padding: 30px 16px;
  }

  .site-header h1 {
    font-size: 25px;
  }

  .article-grid,
  .nav-links {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 16px;
  }

  .chart-box {
    height: 300px;
  }
}