.site-toast-stack {
  position: fixed;
  z-index: 1100;
  top: 88px;
  right: 16px;
  display: grid;
  gap: 12px;
  width: min(420px, calc(100% - 32px));
  max-height: calc(100dvh - 112px);
  overflow-y: auto;
}
.site-toast-stack .site-toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 16px;
  border: 1px solid var(--line, #536176);
  border-left: 3px solid #16a34a;
  border-radius: 8px;
  background: var(--surface, #111827);
  color: var(--text, #f8fafc);
  box-shadow: 0 8px 30px #0003;
  font: inherit;
  font-size: 14px;
  line-height: 1.6;
  animation: siteToastAppear 150ms ease-out;
}
.site-toast-message { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.site-toast-dismiss {
  flex: 0 0 44px;
  width: 44px;
  min-height: 44px;
  margin: -8px -8px -8px 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: inherit;
  font-size: 24px;
  cursor: pointer;
}
.site-toast-dismiss:hover { background: var(--panel-soft, #374151); }
.site-toast-dismiss:focus-visible { outline: 2px solid var(--accent-text, #818cf8); outline-offset: 2px; }
.site-submit-skeleton {
  display: inline-block;
  width: 1.25em;
  height: .65em;
  margin-left: .6em;
  border-radius: 3px;
  background: currentColor;
  opacity: .4;
  animation: siteSubmitPulse 1s ease-in-out infinite alternate;
}
@keyframes siteToastAppear { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
@keyframes siteSubmitPulse { to { opacity: .15; } }
@media (max-width: 1023px) {
  /* Keep persistent feedback above the workspace without covering its controls. */
  .site-toast-stack { position: static; z-index: auto; margin: 16px auto; max-height: none; overflow: visible; }
}
@media (prefers-reduced-motion: reduce) {
  .site-toast-stack .site-toast, .site-submit-skeleton { animation: none; }
}