.app-toast-stack {
  position: fixed;
  top: var(--app-toast-top, 88px);
  right: var(--app-toast-right, 18px);
  z-index: 1400;
  display: grid;
  gap: 10px;
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.app-toast {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(15, 23, 42, 0.96);
  color: #fff;
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.22);
  font-size: 0.95rem;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: auto;
}

.app-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.app-toast.is-leaving {
  opacity: 0;
  transform: translateY(-10px);
}

.app-toast--success {
  background: rgba(4, 120, 87, 0.96);
}

.app-toast--warning {
  background: rgba(146, 64, 14, 0.97);
}

.app-toast--error {
  background: rgba(159, 18, 57, 0.97);
}

.app-toast__copy {
  min-width: 0;
  word-break: break-word;
}

.app-toast__title {
  display: block;
  margin-bottom: 0.2rem;
  font-weight: 700;
}

.app-toast__close {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 1.25rem;
  line-height: 1;
  opacity: 0.8;
  padding: 0 0 0 8px;
  cursor: pointer;
}

.app-toast__close:hover {
  opacity: 1;
}

.app-feedback {
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #fff;
  color: #0f172a;
  padding: 12px 14px;
  line-height: 1.55;
}

.app-feedback--info {
  border-color: rgba(59, 130, 246, 0.22);
  background: rgba(239, 246, 255, 0.92);
  color: #1d4ed8;
}

.app-feedback--success {
  border-color: rgba(4, 120, 87, 0.22);
  background: rgba(236, 253, 245, 0.94);
  color: #047857;
}

.app-feedback--warning {
  border-color: rgba(146, 64, 14, 0.24);
  background: rgba(255, 247, 237, 0.96);
  color: #9a3412;
}

.app-feedback--error {
  border-color: rgba(190, 24, 93, 0.24);
  background: rgba(255, 241, 242, 0.96);
  color: #9f1239;
}

.app-feedback.is-hidden,
.app-feedback.d-none {
  display: none !important;
}

@media (max-width: 575.98px) {
  .app-toast-stack {
    top: var(--app-toast-top-mobile, 76px);
    left: 12px;
    right: 12px;
    width: auto;
  }
}