.flash-notifications {
  position: fixed;
  bottom: var(--space-4);
  left: calc(var(--app-gutter) + var(--space-4));
  right: calc(var(--app-gutter) + var(--space-4));
  z-index: 9999;
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-3);
  pointer-events: none;
}

.flash-notification {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--gray-900);
  border: 1px solid var(--gray-800);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  font-size: var(--type-body);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(100%);
  transition: none;
}

.flash-notification-visible {
  animation: flashSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.flash-notification-fade-out {
  animation: flashSlideOut 0.2s ease-in forwards;
}

@keyframes flashSlideIn {
  0% {
    opacity: 0;
    transform: translateX(100%);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes flashSlideOut {
  0% {
    opacity: 1;
    transform: translateX(0);
  }
  100% {
    opacity: 0;
    transform: translateX(100%);
  }
}

.flash-notification-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

.flash-notification-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flash-notification-message {
  flex: 1;
  line-height: 1.4;
}

.flash-notification-close {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--gray-500);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.flash-notification-close:hover {
  background: var(--gray-800);
  color: var(--gray-200);
}

.flash-notification-notice {
  border-color: var(--flash-notice-border);
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--flash-notice-bg) 100%);
}

.flash-notification-notice .flash-notification-icon {
  color: var(--flash-notice-text);
}

.flash-notification-notice .flash-notification-message {
  color: var(--flash-notice-text);
}

.flash-notification-alert {
  border-color: var(--flash-alert-border);
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--flash-alert-bg) 100%);
}

.flash-notification-alert .flash-notification-icon {
  color: var(--danger);
}

.flash-notification-alert .flash-notification-message {
  color: var(--flash-alert-text);
}