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

:root {
  --primary-blue: #e6f3ff;
  --secondary-blue: #cce7ff;
  --text-color: #333;
  --border-color: #b3d9ff;
}

html {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  background-attachment: fixed;
  min-height: 100%;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: var(--text-color);
  line-height: 1.6;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body::before {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  width: 100%;
  height: 100%;
  content: '';
}

.container {
  margin: 2rem auto 4rem auto;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  background: white;
  padding: 2rem;
  max-width: 800px;
}

h1 {
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
  color: #2c5282;
}

h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: #3182ce;
}

p {
  margin-bottom: 1rem;
}

ul,
ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

.last-updated {
  margin-top: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  color: #666;
  font-style: italic;
}

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

.main-link {
  display: inline-block;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.5rem 1rem;
  color: #3182ce;
  font-weight: 500;
  text-decoration: none;
}

.main-link:hover {
  background-color: var(--primary-blue);
  color: #2c5282;
  text-decoration: none;
}

@media (max-width: 768px) {
  .container {
    margin: 1rem 1rem 4rem 1rem;
    padding: 1.5rem;
  }
}

@media print {
  .header {
    display: none;
  }

  .container {
    margin: 0;
    box-shadow: none;
    padding: 0;
  }

  a {
    text-decoration: none;
  }
}