/* Reset and base styles */
* {
  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;
  background-color: #fff;
}

/* Site container */
.site-container {
  display: flex;
  min-height: 100vh;
}

/* Navigation */
.site-nav {
  width: 280px;
  background-color: #f8f9fa;
  border-right: 1px solid #e1e4e8;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.nav-header {
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid #e1e4e8;
  margin-bottom: 1rem;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: #24292e;
  text-decoration: none;
}

.nav-logo:hover {
  color: #0366d6;
}

.nav-menu {
  list-style: none;
  padding: 0;
}

.nav-item {
  margin-bottom: 0.5rem;
}

.nav-section-title {
  display: block;
  padding: 0.5rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #586069;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-submenu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-subitem {
  margin: 0;
}

.nav-link {
  display: block;
  padding: 0.5rem 1.5rem 0.5rem 2.5rem;
  color: #586069;
  text-decoration: none;
  font-size: 0.9375rem;
  transition: background-color 0.2s, color 0.2s;
}

.nav-link:hover {
  background-color: #f1f3f5;
  color: #24292e;
}

.nav-link.active {
  background-color: #e7f3ff;
  color: #0366d6;
  font-weight: 500;
  border-right: 3px solid #0366d6;
}

/* Main content */
.site-main {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.content-wrapper {
  max-width: 900px;
}

/* Typography */
h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #24292e;
  border-bottom: 1px solid #e1e4e8;
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: #24292e;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: #24292e;
}

h4 {
  font-size: 1.125rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  color: #24292e;
}

p {
  margin-bottom: 1rem;
}

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

li {
  margin-bottom: 0.5rem;
}

/* Code blocks */
code {
  background-color: #f6f8fa;
  border: 1px solid #e1e4e8;
  border-radius: 3px;
  padding: 0.125rem 0.375rem;
  font-size: 0.875em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

pre {
  background-color: #f6f8fa;
  border: 1px solid #e1e4e8;
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

pre code {
  background-color: transparent;
  border: none;
  padding: 0;
  font-size: 0.875rem;
}

/* Blockquotes */
blockquote {
  background-color: #f6f8fa;
  border-left: 4px solid #0366d6;
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 6px 6px 0;
  color: #24292e;
}

blockquote p {
  margin-bottom: 0.5rem;
}

blockquote p:last-child {
  margin-bottom: 0;
}

/* Links */
a {
  color: #0366d6;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Tables */
table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 1rem;
}

th, td {
  border: 1px solid #e1e4e8;
  padding: 0.75rem;
  text-align: left;
}

th {
  background-color: #f6f8fa;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .site-container {
    flex-direction: column;
  }
  
  .site-nav {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid #e1e4e8;
  }
  
  .site-main {
    padding: 1rem;
  }
}