.sidenav {
  position: sticky;
  top: 120px;
  left: 0;
  padding: 1rem;
  border-radius: 1rem;
  text-align: left;
  color: white;
  font-weight: 500;
  transition: all 0.3s ease;
  max-height: 70vh;
  overflow-y: auto;
}

.sidenav ul {
  list-style: none;
  padding-left: 0;
}

.sidenav li {
  margin: 0.8rem 0;
}

.sidenav a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all 0.3s ease;
}

.sidenav a:hover {
  color: white;
  font-weight: 600;
}

.sidenav a.active {
  background: linear-gradient(135deg, #4fa3ff, #62ff8c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

@media (max-width: 992px) {
  .sidenav {
    display: none;
  }
}