.flash-area {
  position: fixed;
  top: 78px;
  right: 24px;
  z-index: 1200;
  display: grid;
  width: min(400px, calc(100vw - 32px));
  margin: 0;
  gap: 8px;
  pointer-events: none;
}

.flash-area .alert.ui-toast {
  --ui-toast-accent: var(--ui-color-info-600, #2563eb);
  position: relative;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto 32px;
  align-items: center;
  gap: 10px;
  min-height: 58px;
  margin: 0;
  padding: 11px 10px 13px 14px;
  overflow: hidden;
  border: 1px solid var(--ui-color-border, #e5e7eb);
  border-left: 3px solid var(--ui-toast-accent);
  border-radius: 10px;
  background: var(--ui-color-surface, #fff);
  color: var(--ui-color-text, #111827);
  box-shadow: 0 14px 34px rgba(15, 23, 42, .16);
  pointer-events: auto;
  animation: ui-toast-in .2s ease-out both;
}

.flash-area .alert-success.ui-toast { --ui-toast-accent: var(--ui-color-success-600, #15803d); }
.flash-area .alert-error.ui-toast,
.flash-area .alert-danger.ui-toast { --ui-toast-accent: var(--ui-color-danger-600, #b91c1c); }
.flash-area .alert-warning.ui-toast { --ui-toast-accent: var(--ui-color-warning-600, #b45309); }

.ui-toast-icon {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 999px;
  background: color-mix(in srgb, var(--ui-toast-accent) 12%, white);
  color: var(--ui-toast-accent);
}

.ui-toast-icon svg { width: 15px; height: 15px; stroke: currentColor; }
.ui-toast-message { min-width: 0; color: inherit; font-size: 13px; line-height: 1.5; overflow-wrap: anywhere; }
.ui-toast-countdown { min-width: 24px; color: var(--ui-color-text-muted, #667085); font-size: 11px; font-variant-numeric: tabular-nums; text-align: right; }
.ui-toast-close {
  display: grid;
  width: 32px;
  height: 32px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ui-color-text-muted, #667085);
  cursor: pointer;
}
.ui-toast-close:hover { background: var(--ui-color-canvas, #f5f7fa); color: var(--ui-color-text, #111827); }
.ui-toast-close:focus-visible { outline: 3px solid rgba(37, 99, 235, .22); outline-offset: 1px; }
.ui-toast-close svg { width: 16px; height: 16px; stroke: currentColor; }
.ui-toast-progress { position: absolute; right: 0; bottom: 0; left: 0; height: 3px; background: color-mix(in srgb, var(--ui-toast-accent) 12%, white); }
.ui-toast-progress > span { display: block; width: 100%; height: 100%; background: var(--ui-toast-accent); transform-origin: left center; animation: ui-toast-countdown 4500ms linear forwards; }
.ui-toast.is-countdown-paused .ui-toast-progress > span { animation-play-state: paused; }
.ui-toast.is-toast-leaving { animation: ui-toast-out .18s ease-in both; }

@keyframes ui-toast-countdown { to { transform: scaleX(0); } }
@keyframes ui-toast-in { from { opacity: 0; transform: translateY(-8px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes ui-toast-out { to { opacity: 0; transform: translateY(-6px) scale(.98); } }

@media (max-width: 560px) {
  .flash-area { top: 68px; right: 12px; left: 12px; width: auto; }
  .flash-area .alert.ui-toast { grid-template-columns: 24px minmax(0, 1fr) auto 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .flash-area .alert.ui-toast,
  .flash-area .alert.ui-toast.is-toast-leaving { animation: none; }
  .ui-toast-progress > span { animation-timing-function: steps(1, end); }
}