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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: #f5f5f5;
  color: #333;
}

.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background-color: #333;
  color: white;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
}

.logo a {
  color: white;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  padding: 0.5rem;
  border-radius: 4px;
}

.nav-links a:hover {
  background-color: #555;
}

/* Global link styles */
a {
  text-decoration: none;
  cursor: pointer;
}

/* Main content */
main {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #333;
}

.description {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #666;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card h2 {
  margin-bottom: 0.5rem;
  color: #333;
}

.card p {
  color: #666;
}

/* Footer */
.footer {
  background-color: #333;
  color: white;
  padding: 1rem;
  text-align: center;
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

/* Data page layout */
.data-layout {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.data-sidebar {
  width: 250px;
  flex-shrink: 0;
}

.data-content {
  flex: 1;
  min-width: 0;
}

.indicator-group {
  margin-bottom: 1.5rem;
}

.group-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #ddd;
}

.indicator-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.indicator-item {
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  background-color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.indicator-item:hover {
  background-color: #f0f0f0;
  transform: translateX(4px);
}

.indicator-item.active {
  background-color: #333;
  color: white;
}

.indicator-detail {
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.indicator-title {
  font-size: 1.8rem;
  color: #333;
  margin-bottom: 0.5rem;
}

.indicator-description {
  color: #666;
  margin-bottom: 2rem;
}

.chart-container {
  margin-bottom: 3rem;
  padding: 1rem;
  background-color: #fafafa;
  border-radius: 8px;
}

.data-table-container {
  margin-top: 2rem;
}

.table-title {
  font-size: 1.3rem;
  color: #333;
  margin-bottom: 1rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.data-table th {
  background-color: #f5f5f5;
  font-weight: 600;
  color: #333;
}

.data-table tbody tr:hover {
  background-color: #f9f9f9;
}

/* Articles section */
.articles-section {
  margin-top: 4rem;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 2rem;
  color: #333;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #ddd;
}

.articles-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.article-card {
  background-color: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  cursor: pointer;
}

.article-card:hover {
  background-color: #f9f9f9;
  transform: translateX(5px);
}

.article-date {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.75rem;
}

.article-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.article-excerpt {
  color: #666;
  line-height: 1.5;
  font-size: 0.95rem;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 2rem;
}

.page-link {
  padding: 0.5rem 1rem;
  background-color: white;
  border: 1px solid #ddd;
  border-radius: 4px;
  color: #333;
  text-decoration: none;
  transition: all 0.2s ease;
}

.page-link:hover {
  background-color: #f0f0f0;
}

.page-link.active {
  background-color: #333;
  color: white;
  border-color: #333;
}

/* Article detail page */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.article-detail-title {
  font-size: 2.5rem;
  color: #333;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.article-detail-date {
  font-size: 1rem;
  color: #666;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #eee;
}

.article-detail-content {
  color: #333;
  line-height: 1.6;
}

.article-detail-content h1,
.article-detail-content h2,
.article-detail-content h3,
.article-detail-content h4,
.article-detail-content h5,
.article-detail-content h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: #333;
}

.article-detail-content p {
  margin-bottom: 1.5rem;
}

.article-detail-content ul,
.article-detail-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.article-detail-content li {
  margin-bottom: 0.5rem;
}

.article-detail-content img {
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  border-radius: 8px;
}

@media (max-width: 900px) {
  .data-layout {
    flex-direction: column;
  }
  
  .data-sidebar {
    width: 100%;
  }
  
  .pagination {
    justify-content: center;
  }
  
  .article-detail {
    padding: 1.5rem;
  }
  
  .article-detail-title {
    font-size: 2rem;
  }
  
  .strategy-layout {
    flex-direction: column;
  }
  
  .strategy-sidebar {
    width: 100%;
  }
}

/* Strategy page layout */
.strategy-layout {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.strategy-sidebar {
  width: 250px;
  flex-shrink: 0;
}

.strategy-content {
  flex: 1;
  min-width: 0;
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #ddd;
}

.strategy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.strategy-item {
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  background-color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.strategy-item:hover {
  background-color: #f0f0f0;
  transform: translateX(4px);
}

.strategy-item.active {
  background-color: #333;
  color: white;
}

.strategy-detail {
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.strategy-title {
  font-size: 1.8rem;
  color: #333;
  margin-bottom: 0.5rem;
}

.strategy-description {
  color: #666;
  margin-bottom: 2rem;
}

.chart-section {
  margin-bottom: 3rem;
}

.chart-title {
  font-size: 1.3rem;
  color: #333;
  margin-bottom: 1rem;
}