body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  background-color: #f9f9f9;
  color: #333;
}

#navbar {
  position: fixed;
  width: 250px;
  height: 100%;
  background-color: #222;
  color: white;
  padding: 1rem;
}

#navbar header {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  text-align: center;
}

#navbar ul {
  list-style: none;
  padding: 0;
}

#navbar li {
  margin: 10px 0;
}

#navbar a {
  text-decoration: none;
  color: #ddd;
}

#navbar a:hover {
  color: #fff;
}

#main-doc {
  margin-left: 270px;
  padding: 2rem;
}

.main-section {
  margin-bottom: 2rem;
}

header {
  font-size: 1.6rem;
  color: #0059b3;
  margin-bottom: 0.5rem;
}

pre {
  background: #eee;
  padding: 10px;
  border-radius: 5px;
  text-align: left;
  overflow-x: auto;
}

code {
  color: #c7254e;
  background-color: #f9f2f4;
  padding: 2px 4px;
  border-radius: 3px;
}

.back-home {
  text-align: center;
  margin-top: 3rem;
}

.back-home a {
  text-decoration: none;
  color: white;
  background-color: #0059b3;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.back-home a:hover {
  background-color: #003d80;
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #222;
  color: white;
  font-size: 0.9rem;
  margin-top: 2rem;
}

/* Responsive */
@media (max-width: 800px) {
  #navbar {
    position: relative;
    width: 100%;
    height: auto;
  }
  #main-doc {
    margin-left: 0;
  }
}