/* ==========================================================================
   Toast Notification System
   Uses design tokens from main.css. Shell-level — persists across SPA swaps.
   ========================================================================== */

/* Container — fixed bottom-right, stacks toasts vertically */
.toast-container {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    z-index: var(--z-popover);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    pointer-events: none;
}

/* Individual toast */
.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    width: 320px;
    max-width: calc(100vw - var(--spacing-8));
    padding: var(--spacing-4);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    pointer-events: auto;
    animation: toastSlideIn var(--transition-base) ease-out;
}

/* Type variants — border-left accent + icon color */
.toast-success {
    border-left-color: var(--color-success-text);
}
.toast-success .toast-icon {
    color: var(--color-success-text);
}

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

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

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

/* Icon */
.toast-icon {
    flex-shrink: 0;
    line-height: 0;
    margin-top: 1px;
}

/* Message */
.toast-message {
    flex: 1;
    line-height: 1.4;
    word-break: break-word;
}

/* Close button */
.toast-close {
    flex-shrink: 0;
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    line-height: 1;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 0;
    margin: -2px -4px 0 0;
}
.toast-close:hover {
    color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */

@keyframes toastSlideIn {
    from {
        transform: translateX(calc(100% + var(--spacing-6)));
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes toastSlideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(calc(100% + var(--spacing-6)));
        opacity: 0;
    }
}

.toast.dismissing {
    animation: toastSlideOut var(--transition-base) ease-in forwards;
}

/* --------------------------------------------------------------------------
   Mobile — full-width toasts
   -------------------------------------------------------------------------- */

@media (max-width: 480px) {
    .toast-container {
        left: var(--spacing-3);
        right: var(--spacing-3);
        bottom: var(--spacing-4);
    }
    .toast {
        width: auto;
        max-width: none;
    }
}

/* Clear bottom nav on mobile */
@media (max-width: 768px) {
    .toast-container {
        bottom: calc(56px + var(--spacing-4) + env(safe-area-inset-bottom, 0));
    }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .toast {
        animation-duration: 0.01ms !important;
    }
    .toast.dismissing {
        animation-duration: 0.01ms !important;
    }
}