body {
  background-color: #f8f9fa;
}

.sidebar {
  background: linear-gradient(180deg, #111, #333);
  min-height: 100vh;
}

.sidebar .nav-link {
  margin: 8px 0;
  font-weight: 500;
}

.sidebar .nav-link:hover {
  background-color: #ffc107;
  color: #000 !important;
  border-radius: 5px;
}

.skill-box {
  background-color: #212529;
  color: #fff;
  padding: 15px;
  text-align: center;
  border-radius: 8px;
  margin-bottom: 15px;
  font-weight: 600;
}