.side-nav {
  position: fixed;
  right: 80px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
}

.nav-item {
  display: flex;
  align-items: center;
  margin: 15px 0;
  text-decoration: none;
  color: #666;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 1px;
  transition: color 0.3s ease;
  width: 140px;
}

.nav-item::before {
  content: '';
  width: 20px;
  height: 1px;
  background-color: #666;
  margin-right: 10px;
  transition: background-color 0.3s ease, width 0.3s ease;
  flex-shrink: 0;
}

.nav-item.active {
  color: #000;
}

.nav-item.active::before {
  background-color: #000;
  width: 40px;
}