* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  display: flex;
}

/* Navbar styles */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 250px;
  height: 100vh;
  background-color: #f0f0f0;
  border-right: 1px solid #ccc;
  padding: 20px;
  overflow-y: auto;
}

#navbar header {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 20px;
}

.nav-link {
  display: block;
  margin: 10px 0;
  color: #333;
  text-decoration: none;
  font-size: 16px;
}

.nav-link:hover {
  color: #007BFF;
}

/* Main doc content */
#main-doc {
  margin-left: 270px;
  padding: 20px;
  flex: 1;
}

.main-section {
  margin-bottom: 40px;
}

.main-section header {
  font-size: 24px;
  margin-bottom: 10px;
  color: #222;
}

p {
  line-height: 1.6;
  color: #555;
}

code {
  display: block;
  background-color: #eee;
  padding: 10px;
  margin: 10px 0;
  border-radius: 5px;
  font-family: monospace;
}

ul {
  margin: 10px 0;
  padding-left: 20px;
}

li {
  margin-bottom: 5px;
}

/* ✅ Responsive for mobile */
@media (max-width: 768px) {
  body {
    flex-direction: column;
  }

  #navbar {
    position: static;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid #ccc;
  }

  #main-doc {
    margin-left: 0;
  }
}