.theme-toggle-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-right: -8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--y-color-muted);
  font-size: 20px;
  transition: color 0.3s ease;
}
.theme-toggle-btn i {
  color: var(--y-color-primary);
  font-size: 30px;
}

.theme-toggle-btn:hover {
  color: var(--y-color-primary);
}

.theme-toggle-btn .theme-icon-sun {
  display: none;
}

body.dark-theme .theme-icon-sun {
  display: block;
}

body.dark-theme .theme-icon-moon {
  display: none;
}

.theme-toggle-mobile-li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--y-color-muted);
  font-size: 16px;
  font-weight: 600;
  padding: 12px 0;
}

body.dark-theme header {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

body.dark-theme .mobile-menu {
  border-right: 1px solid #444;
}