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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-bottom: 2px solid #eee;
  margin-bottom: 40px;
}

nav .nav-left .logo {
  font-weight: 700;
  font-size: 1.3em;
  color: #333;
  text-decoration: none;
}

nav .nav-right {
  display: flex;
  gap: 20px;
}

nav a {
  color: #333;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  color: #0066cc;
}

h1 {
  font-size: 2.5em;
  margin-bottom: 10px;
  font-weight: 700;
}

h2 {
  font-size: 1.8em;
  margin-top: 40px;
  margin-bottom: 15px;
  font-weight: 600;
}

h3 {
  font-size: 1.3em;
  margin-top: 30px;
  margin-bottom: 10px;
  font-weight: 600;
}

p {
  margin-bottom: 15px;
}

.subtitle {
  font-size: 1.2em;
  color: #666;
  margin-bottom: 30px;
}

code {
  background: #f5f5f5;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: "Menlo", "Monaco", "Courier New", monospace;
  font-size: 0.9em;
}

pre {
  background: #f5f5f5;
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
  margin: 20px 0;
}

pre code {
  background: none;
  padding: 0;
}

.cta {
  margin-top: 40px;
  display: flex;
  gap: 15px;
}

.button {
  display: inline-block;
  padding: 12px 24px;
  background: #0066cc;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 500;
  transition: background 0.2s;
}

.button:hover {
  background: #0052a3;
}

.button.secondary {
  background: #666;
}

.button.secondary:hover {
  background: #444;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

th, td {
  text-align: left;
  padding: 10px;
  border-bottom: 1px solid #eee;
}

th {
  font-weight: 600;
  background: #f5f5f5;
}

ul, ol {
  margin-left: 25px;
  margin-bottom: 15px;
}

li {
  margin-bottom: 8px;
}

strong {
  font-weight: 600;
}

footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 2px solid #eee;
  color: #666;
  font-size: 0.9em;
}

footer a {
  color: #666;
}

blockquote {
  border-left: 4px solid #0066cc;
  padding-left: 15px;
  margin: 20px 0;
  color: #666;
}

@media (max-width: 600px) {
  body {
    padding: 15px;
  }
  
  h1 {
    font-size: 2em;
  }
  
  nav {
    flex-direction: column;
    gap: 15px;
    align-items: flex-start;
  }
  
  nav .nav-right {
    flex-wrap: wrap;
  }
  
  .cta {
    flex-direction: column;
  }
  
  table {
    font-size: 0.9em;
  }
  
  th, td {
    padding: 8px;
  }
}