header {
  height: 60px;
  background-color: #fff;
  border-bottom: 1px solid #dee2e6;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  padding: 0 1rem;
}

.navbar-section {
  height: 60px;
  display: flex;
  align-items: center;
}

.navbar-brand img {
  width: auto;
  height: 40px;
}

.sidebar {
  position: fixed;
  top: 60px;
  bottom: 0;
  left: 0;
  padding: 60px 0 0;
  width: 240px;
  z-index: 100;
  border-right: 1px solid #dee2e6;
}

.sidebar .nav-link {
  color: #333;
}

.sidebar .nav-link.active {
  font-weight: bold;
  color: #0d6efd;
}

main {
  min-height: 100vh;
  margin-left: 240px;
  padding: 60px 30px 30px;
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    padding-top: 70px;
  }
}

footer {
  margin-left: 240px;
  padding: 1rem;
  border-top: 1px solid #dee2e6;
}

@media (max-width: 768px) {
  footer {
    margin-left: 0;
  }
}

#doc-nav .nav-link {
  color: inherit;
  border-left: 2px solid transparent;
  transition: border-color 0.3s ease;
}

#doc-nav .nav-link.active {
  color: var(--bs-primary);
  font-weight: 500;
  border-left-color: var(--bs-primary);
  background-color: transparent;
}

.sidebar .nav-link {
  color: inherit;
}

.sidebar .nav-link.active {
  color: var(--bs-primary);
  font-weight: 400;
  border-left-color: var(--bs-primary);
  background-color: #f1f7ff;
}