.toast-stack {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  z-index: 100000;
  pointer-events: none;
}

.toast-notification {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(390px, calc(100vw - 32px));
  padding: 14px 12px 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--card-bg-color);
  color: var(--text-color);
  box-shadow: var(--shadow-md);
  font-size: var(--font-size-sm);
  transform: translateX(calc(100% + 32px));
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  overflow: hidden;
  pointer-events: none;
}

.toast-notification.show {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.toast-icon {
  flex-shrink: 0;
  font-size: var(--font-size-xl);
  line-height: 1;
}

.toast-message {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.toast-close {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  color: var(--muted-text-color);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.toast-close:hover,
.toast-close:focus-visible {
  color: var(--text-color);
  background: var(--bg-color);
  outline: 2px solid rgba(var(--primary-rgb), 0.35);
  outline-offset: 1px;
}

.toast-notification::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 4px;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.2);
  animation: progress-bar var(--toast-duration, 4000ms) linear forwards;
}

.toast-notification.is-persistent::after {
  display: none;
}

@keyframes progress-bar {
  from {
    width: 100%;
  }
  to {
    width: 0%;
  }
}

.toast-notification.success {
  border-left: 5px solid var(--success-color);
}
.toast-notification.success .toast-icon {
  color: var(--success-color);
}

.toast-notification.error {
  border-left: 5px solid var(--danger-color);
}
.toast-notification.error .toast-icon {
  color: var(--danger-color);
}

.toast-notification.info {
  border-left: 5px solid var(--info-color);
}
.toast-notification.info .toast-icon {
  color: var(--info-color);
}

.toast-notification.warning {
  border-left: 5px solid var(--warning-color);
}
.toast-notification.warning .toast-icon {
  color: var(--warning-color);
}

@media (max-width: 480px) {
  .toast-stack {
    top: 12px;
    right: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .toast-notification {
    transition: none;
  }
}