.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.navigation {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 30px;
}

.nav-link {
  text-decoration: none;
  color: #2196F3;
  font-weight: bold;
  padding: 10px 20px;
  border-radius: 5px;
  transition: background-color 0.2s;
}

.nav-link:hover {
  background-color: #e3f2fd;
}

section {
  margin-bottom: 50px;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 30px;
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
  padding: 20px;
}

.link-item {
  background-color: #f5f5f5;
  padding: 15px;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.link-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
  background-color: #e8e8e8;
}

.link-number {
  font-weight: bold;
  color: #2196F3;
  margin-right: 8px;
}

.link-title {
  color: #333;
}