.success-toast,
.fail-toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(10px) scale(0.98);
  padding: 12px 16px;
  border-radius: 999px;

  box-shadow:
    0 10px 28px rgba(0, 0, 0, 0.28),
    0 2px 10px rgba(0, 0, 0, 0.18);

  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);

  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.2px;
  line-height: 1;

  opacity: 0;
  pointer-events: none;

  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
  z-index: 99999;

  max-width: calc(100vw - 28px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.success-toast {
  background: rgba(70, 109, 193, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.fail-toast {
  background: rgba(220, 38, 38, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.success-toast.is-show,
.fail-toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(-12px) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .success-toast,
  .fail-toast {
    transition: opacity 0.01s linear;
    transform: translateX(-50%);
  }

  .success-toast.is-show,
  .fail-toast.is-show {
    transform: translateX(-50%);
  }
}

@media (max-width: 900px) {
  .success-toast,
  .fail-toast {
    max-width: calc(100vw - 24px);
    white-space: normal;

    line-height: 1.35;

    text-overflow: clip;

    display: -webkit-box;

    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5;
    overflow: hidden;
    padding: 12px 14px;
  }
}