/* Common styles for all pages */
:root {
  --primary-color: #0xDD000000;
  --secondary-color: #666;
  --background-color: #0xFFF2F2F2;
  --link-color: #0066cc;
  --border-color: #ddd;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--primary-color);
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

header {
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
  padding: 1rem 0;
}

h1 {
  font-size: 2rem;
  margin: 0 0 1rem;
  color: var(--primary-color);
}

h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--primary-color);
}

p {
  margin: 1rem 0;
  color: var(--secondary-color);
}

ul, ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

li {
  margin: 0.5rem 0;
  color: var(--secondary-color);
}

a {
  color: var(--link-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.nav {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.nav a {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.nav a:hover {
  background-color: var(--border-color);
  text-decoration: none;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  color: var(--secondary-color);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .container {
    padding: 10px;
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.25rem;
  }
}