.app-toast-stack {
  --app-toast-success-border: rgba(16, 185, 129, 0.24);
  --app-toast-success-bg: rgba(255, 255, 255, 0.96);
  --app-toast-success-accent: rgb(5 150 105);
  --app-toast-success-text: var(--color-base-900);
  --app-toast-error-border: rgba(239, 68, 68, 0.24);
  --app-toast-error-bg: rgba(255, 255, 255, 0.96);
  --app-toast-error-accent: rgb(220 38 38);
  --app-toast-error-text: var(--color-base-900);
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2200;
  display: grid;
  gap: 12px;
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.dark .app-toast-stack {
  --app-toast-success-border: rgba(16, 185, 129, 0.24);
  --app-toast-success-bg: rgba(2, 6, 23, 0.94);
  --app-toast-success-accent: rgb(110 231 183);
  --app-toast-success-text: var(--color-base-50);
  --app-toast-error-border: rgba(239, 68, 68, 0.26);
  --app-toast-error-bg: rgba(2, 6, 23, 0.94);
  --app-toast-error-accent: rgb(252 165 165);
  --app-toast-error-text: var(--color-base-50);
}

.app-toast {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 14px 16px 16px;
  border: 1px solid transparent;
  border-radius: 18px;
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.18);
  opacity: 0;
  transform: translate3d(0, -12px, 0) scale(0.98);
  transition: opacity 0.24s ease, transform 0.24s ease;
  pointer-events: auto;
  overflow: hidden;
}

.app-toast::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 18px 0 0 18px;
}

.app-toast[data-state="visible"] {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

.app-toast[data-tone="success"] {
  border-color: var(--app-toast-success-border);
  background: var(--app-toast-success-bg);
  color: var(--app-toast-success-text);
}

.app-toast[data-tone="success"]::before {
  background: var(--app-toast-success-accent);
}

.app-toast[data-tone="error"] {
  border-color: var(--app-toast-error-border);
  background: var(--app-toast-error-bg);
  color: var(--app-toast-error-text);
}

.app-toast[data-tone="error"]::before {
  background: var(--app-toast-error-accent);
}

.app-toast__message {
  font-size: 0.9375rem;
  line-height: 1.5;
}

@media (max-width: 767px) {
  .app-toast-stack {
    top: 12px;
    right: 12px;
    width: min(360px, calc(100vw - 24px));
  }
}