body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f8f9fa;
  margin: 0;
  padding: 0;
}
.sidebar {
  width: 230px;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  background-color: #0d6efd;
  color: white;
  padding-top: 20px;
}
.sidebar a {
  display: block;
  padding: 12px 20px;
  color: white;
  text-decoration: none;
  margin-bottom: 5px;
}
.sidebar a:hover {
  background-color: #0b5ed7;
}
.main {
  margin-left: 230px;
  padding: 30px;
}