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

:root {
  --font-family-sans: 'Inter', sans-serif;
  --custom-blue: #2c3e50;
  --gradient-start: #374151;
  --gradient-end: #1f2937;
}

body {
  font-family: var(--font-family-sans);
  line-height: 1.6;
  color: #333;
  background-color: #f8fafc;
}

.text-custom-blue {
  color: var(--custom-blue);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
}

.card {
  background: #ffffff;
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  border: 1px solid #e5e7eb;
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.source-link {
  font-size: 0.75rem;
  color: #3b82f6;
  font-weight: 500;
  vertical-align: super;
  transition: color 0.3s ease;
}

.source-link:hover {
  color: #2563eb;
}

.data-table {
  width: 100%;
  text-align: left;
  font-size: 0.875rem;
}

.data-table th {
  background-color: #f1f5f9;
  padding: 0.75rem;
  font-weight: 600;
  color: #4b5563;
  border-bottom: 2px solid #d1d5db;
}

.data-table td {
  padding: 0.75rem;
  border-bottom: 1px solid #e5e7eb;
  color: #374151;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background-color: #f8fafc;
}

.data-table strong {
  font-weight: 600;
  color: #111827;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--custom-blue);
  color: white;
  border: 1px solid var(--custom-blue);
}

.btn-primary:hover {
  background-color: #1a2530;
  border-color: #1a2530;
}

/* Navigation Styles */
.nav-link {
  color: #4b5563;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--custom-blue);
}

.nav-link.active {
  color: #111827;
  font-weight: 600;
  border-bottom: 2px solid var(--custom-blue);
}

/* Footer Styles */
.site-footer {
  background-color: #1f2937;
  color: #f9fafb;
}

/* Responsive Design */
@media (max-width: 768px) {
  .section-title {
    font-size: 1.25rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .data-table {
    font-size: 0.75rem;
  }
  
  .data-table th,
  .data-table td {
    padding: 0.5rem;
  }
}