/* Common base styles for all test pages */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 40px;
  text-align: center;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  font-weight: 300;
}

.header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

.content {
  padding: 40px;
}

.back-link {
  display: inline-block;
  color: #667eea;
  text-decoration: none;
  margin-bottom: 20px;
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 2rem;
  }

  .content {
    padding: 20px;
  }
}