body {
  scroll-behavior: smooth;
}
.section-title {
  border-bottom: 3px solid #0d6efd;
  display: inline-block;
  padding-bottom: 5px;
  margin-bottom: 15px;
}
#themeToggle {
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
[data-theme="dark"] {
  background-color: #121212 !important;
  color: #f4f4f4;
}
[data-theme="dark"] .bg-dark {
  background-color: #1f1f1f !important;
}