/* Toast notifications — flash messages float in at the top centre. */

:root {
  --toast-width: 24rem;
}

.toast-region {
  position: fixed;
  top: max(1rem, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  z-index: 120;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: min(var(--toast-width), calc(100vw - 2rem));
  pointer-events: none;
}

.toast {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  width: 100%;
  box-sizing: border-box;
  padding: 0.6875rem 0.625rem 0.6875rem 0.75rem;
  border-radius: var(--ah-radius-md);
  background: var(--ah-ink);
  color: #fff;
  font-size: var(--ah-text-sm);
  font-weight: var(--ah-weight-medium);
  line-height: 1.45;
  box-shadow: var(--ah-shadow-pop);
  overflow: hidden;
  pointer-events: auto;
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
  transform-origin: top center;
  filter: blur(2px);
  transition:
    opacity var(--ah-dur-2) var(--ah-ease-out),
    transform var(--ah-dur-3) var(--ah-ease-out),
    filter var(--ah-dur-2) var(--ah-ease-out);
}

.toast--visible {
  opacity: 1;
  transform: none;
  filter: none;
}

.toast--leaving {
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transition-duration: 140ms;
}

.toast__icon {
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.0625rem;
  border-radius: 50%;
}

.toast__icon svg {
  width: 12px;
  height: 12px;
}

.toast__message {
  flex: 1;
  min-width: 0;
  margin: 0.0625rem 0;
  color: rgba(255, 255, 255, 0.92);
  word-break: break-word;
}

.toast__close {
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: 0;
  border-radius: var(--ah-radius-xs);
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: background var(--ah-dur-1), color var(--ah-dur-1);
}

.toast__close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.toast__close:focus-visible {
  outline-color: #fff;
}

.toast__timer {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 100%;
  transform-origin: left center;
  transform: scaleX(1);
  opacity: 0.7;
}

.toast--notice .toast__icon {
  background: var(--ah-accent);
  color: #fff;
}

.toast--notice .toast__timer {
  background: #5fc2b6;
}

.toast--alert .toast__icon {
  background: var(--ah-danger);
  color: #fff;
}

.toast--alert .toast__timer {
  background: #f08a80;
}

@media (max-width: 640px) {
  .toast-region {
    width: calc(100vw - 1.5rem);
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .toast,
  .toast--visible,
  .toast--leaving {
    transform: none;
    filter: none;
  }

  .toast__timer {
    transition: none !important;
  }
}