/**
 * Toast/Notification Components
 *
 * Non-blocking notifications that appear temporarily.
 * Supports success, warning, error, and info variants.
 */

/* ==========================================================================
   Toast Container
   ========================================================================== */

.toast-container {
  position: fixed;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  pointer-events: none;
  max-width: 100%;
}

/* Position variants */
.toast-container-top-right {
  top: 0;
  right: 0;
}

.toast-container-top-left {
  top: 0;
  left: 0;
}

.toast-container-top-center {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.toast-container-bottom-right {
  bottom: 0;
  right: 0;
}

.toast-container-bottom-left {
  bottom: 0;
  left: 0;
}

.toast-container-bottom-center {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

/* ==========================================================================
   Toast
   ========================================================================== */

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 300px;
  max-width: 420px;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-slide-in 0.3s ease-out;
}

.toast.toast-exiting {
  animation: toast-slide-out 0.2s ease-in forwards;
}

/* Animation keyframes */
@keyframes toast-slide-in {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toast-slide-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* Left-side toasts slide from left */
.toast-container-top-left .toast,
.toast-container-bottom-left .toast {
  animation-name: toast-slide-in-left;
}

.toast-container-top-left .toast.toast-exiting,
.toast-container-bottom-left .toast.toast-exiting {
  animation-name: toast-slide-out-left;
}

@keyframes toast-slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toast-slide-out-left {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-100%);
  }
}

/* Center toasts slide down/up */
.toast-container-top-center .toast {
  animation-name: toast-slide-in-top;
}

.toast-container-top-center .toast.toast-exiting {
  animation-name: toast-slide-out-top;
}

.toast-container-bottom-center .toast {
  animation-name: toast-slide-in-bottom;
}

.toast-container-bottom-center .toast.toast-exiting {
  animation-name: toast-slide-out-bottom;
}

@keyframes toast-slide-in-top {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes toast-slide-out-top {
  from {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  to {
    opacity: 0;
    transform: translateX(-50%) translateY(-100%);
  }
}

@keyframes toast-slide-in-bottom {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(100%);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes toast-slide-out-bottom {
  from {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  to {
    opacity: 0;
    transform: translateX(-50%) translateY(100%);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .toast,
  .toast.toast-exiting {
    animation: none;
  }
}

/* ==========================================================================
   Toast Icon
   ========================================================================== */

.toast-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
}

/* ==========================================================================
   Toast Content
   ========================================================================== */

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  margin-top: var(--space-1);
}

/* ==========================================================================
   Toast Close Button
   ========================================================================== */

.toast-close {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  margin: -0.25rem -0.5rem -0.25rem 0;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.toast-close:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg-hover);
}

.toast-close:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ==========================================================================
   Toast Variants
   ========================================================================== */

.toast-success {
  border-left: 3px solid var(--color-success);
}

.toast-success .toast-icon {
  color: var(--color-success);
}

.toast-warning {
  border-left: 3px solid var(--color-warning);
}

.toast-warning .toast-icon {
  color: var(--color-warning);
}

.toast-error {
  border-left: 3px solid var(--color-error);
}

.toast-error .toast-icon {
  color: var(--color-error);
}

.toast-info {
  border-left: 3px solid var(--color-info);
}

.toast-info .toast-icon {
  color: var(--color-info);
}

/* ==========================================================================
   Toast with Action
   ========================================================================== */

.toast-action {
  margin-top: var(--space-2);
}

.toast-action .btn {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
}

/* ==========================================================================
   Toast Progress Bar (optional auto-dismiss indicator)
   ========================================================================== */

.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-border);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  overflow: hidden;
}

.toast-progress-bar {
  height: 100%;
  background-color: var(--color-accent);
  animation: toast-progress 5s linear forwards;
}

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

.toast-success .toast-progress-bar {
  background-color: var(--color-success);
}

.toast-warning .toast-progress-bar {
  background-color: var(--color-warning);
}

.toast-error .toast-progress-bar {
  background-color: var(--color-error);
}

.toast-info .toast-progress-bar {
  background-color: var(--color-info);
}

/* Toast needs relative positioning for progress bar */
.toast {
  position: relative;
}