body {
  font-family: Arial, sans-serif;
  max-width: 1400px;
  margin: 40px auto;
  padding: 20px;
  color: #333;
  background-color: #f8f9fa;
}

h1 {
  color: #2c3e50;
  margin-bottom: 30px;
  border-bottom: 3px solid #3498db;
  padding-bottom: 10px;
  text-align: center;
}

.main-menu {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.section {
  display: none;
  background-color: white;
  padding: 30px;
  border-radius: 8px;
  margin-bottom: 30px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  border-top: 5px solid;
}

.section.active {
  display: block;
}

.section-title {
  font-size: 24px;
  margin-top: 0;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid;
  color: #2c3e50;
}

.warning-message {
  color: #e74c3c;
  font-weight: bold;
  background-color: #fdeaea;
  padding: 12px;
  border-radius: 4px;
  border: 2px solid #e74c3c;
  margin-bottom: 20px;
}

.backtrace-pre {
  max-height: 200px;
  overflow: auto;
}