/* g2u-premium-header-v1: header actions only; no changes to dropdown panels. */
.topbar .top-right { gap: 8px; }
.topbar .top-right > .icon-btn,
.topbar .site-controls .notification-toggle {
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  box-shadow: none;
  color: #e4ecfc;
  transition: background-color .18s ease, border-color .18s ease, box-shadow .18s ease, color .18s ease;
}
.topbar .top-right > .icon-btn:hover,
.topbar .site-controls .notification-toggle:hover,
.topbar .top-right > .icon-btn:focus-visible,
.topbar .site-controls .notification-toggle:focus-visible {
  background: rgba(66, 112, 181, .19);
  border-color: rgba(118, 168, 238, .24);
  box-shadow: 0 0 16px rgba(37, 99, 235, .09);
  color: #fff;
}
.topbar .site-controls .preferences-toggle {
  min-height: 40px;
  border: 1px solid rgba(150, 182, 231, .09);
  border-radius: 999px;
  background: linear-gradient(135deg,rgba(64, 86, 124, .25),rgba(33, 46, 70, .22));
  box-shadow: inset 0 1px rgba(255,255,255,.045);
  color: #f1f5ff;
  transition: background-color .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.topbar .site-controls .preferences-toggle:hover,
.topbar .site-controls .preferences-toggle:focus-visible {
  background: rgba(68, 101, 151, .32);
  border-color: rgba(123, 171, 240, .3);
  box-shadow: inset 0 1px rgba(255,255,255,.07), 0 3px 15px rgba(0,0,0,.1);
}
.topbar .top-right .g2u-account-trigger {
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  box-shadow: none;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.topbar .top-right .g2u-account-trigger:hover,
.topbar .top-right .g2u-account-trigger:focus-visible {
  border-color: rgba(140, 191, 255, .5);
  box-shadow: 0 0 0 3px rgba(58, 116, 204, .14);
}
/* Keep button hit areas and notification badges unchanged. */
@media (max-width: 540px) {
  .topbar .top-right { gap: 5px; }
  .topbar .site-controls .preferences-toggle { min-height: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  .topbar .top-right > .icon-btn,
  .topbar .site-controls .notification-toggle,
  .topbar .site-controls .preferences-toggle,
  .topbar .top-right .g2u-account-trigger { transition: none; }
}