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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  text-align: center;
  margin-bottom: 3rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: #666;
  font-size: 1rem;
}

main {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

footer {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #ddd;
  color: #666;
  font-size: 0.875rem;
}

footer a {
  color: #0066cc;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}