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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background-color: #f8f9fa;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px;
  background-color: #ffffff;
  min-height: 100vh;
}

header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e5e7eb;
}

header h1 {
  font-size: 28px;
  font-weight: 700;
  color: #111827;
  margin-bottom: 8px;
}

header p {
  color: #6b7280;
  font-size: 14px;
}

main {
  padding-bottom: 48px;
}

section {
  margin-bottom: 32px;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 16px;
  padding-top: 8px;
}

h3 {
  font-size: 16px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 12px;
  margin-top: 20px;
}

p {
  margin-bottom: 12px;
  color: #374151;
}

ul, ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 8px;
  color: #374151;
}

strong {
  font-weight: 600;
  color: #111827;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #e5e7eb;
  text-align: center;
}

footer p {
  color: #6b7280;
  font-size: 14px;
}

footer a {
  color: #2563eb;
}

.highlight {
  background-color: #fef3c7;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.highlight p {
  margin-bottom: 0;
  color: #92400e;
}

@media (max-width: 640px) {
  .container {
    padding: 16px;
  }

  header h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 18px;
  }
}