/* Toast Notification System - CSS */

/* Toast Container */
.toast-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-toast, 2100);
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 500px;
    width: 100%;
}

/* Alternative positioning options */
.toast-container.bottom-right {
    top: auto;
    bottom: var(--spacing-xl);
}

.toast-container.top-left {
    right: auto;
    left: var(--spacing-xl);
}

.toast-container.bottom-left {
    top: auto;
    bottom: var(--spacing-xl);
    right: auto;
    left: var(--spacing-xl);
}

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

.toast-container.center-bottom {
    top: auto;
    bottom: var(--spacing-xl);
    right: 50%;
    transform: translateX(50%);
}

/* Toast Base */
.toast {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--backdrop-blur, blur(8px));
    border-radius: var(--radius-xl, 1rem);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    min-width: 350px;
    max-width: 500px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
    pointer-events: auto;
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-base, 200ms cubic-bezier(0.4, 0, 0.2, 1));
}

/* Toast Visibility States */
.toast.visible {
    transform: translateX(0);
    opacity: 1;
}

.toast.hiding {
    transform: translateX(100%);
    opacity: 0;
}

/* Toast Type Styling */
.toast::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    border-radius: var(--radius-sm, 0.25rem) 0 0 var(--radius-sm, 0.25rem);
}

.toast.success::before {
    background: linear-gradient(135deg, var(--success-color, #10b981) 0%, #059669 100%);
}

.toast.error::before {
    background: linear-gradient(135deg, var(--danger-color, #ef4444) 0%, #dc2626 100%);
}

.toast.warning::before {
    background: linear-gradient(135deg, var(--warning-color, #f59e0b) 0%, #d97706 100%);
}

.toast.info::before {
    background: linear-gradient(135deg, var(--info-color, #0ea5e9) 0%, #0284c7 100%);
}

/* Toast Icon */
.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full, 9999px);
    font-weight: 700;
    font-size: 14px;
}

.toast.success .toast-icon {
    background: var(--success-light, #d1fae5);
    color: var(--success-color, #10b981);
}

.toast.error .toast-icon {
    background: var(--danger-light, #fee2e2);
    color: var(--danger-color, #ef4444);
}

.toast.warning .toast-icon {
    background: var(--warning-light, #fef3c7);
    color: var(--warning-color, #f59e0b);
}

.toast.info .toast-icon {
    background: var(--info-light, #e0f2fe);
    color: var(--info-color, #0ea5e9);
}

/* Toast Content */
.toast-content {
    flex: 1;
    margin-left: var(--spacing-sm);
}

.toast-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
    font-size: var(--font-size-base, 1rem);
    line-height: 1.4;
}

.toast-message {
    color: var(--gray-600);
    font-size: var(--font-size-sm, 0.875rem);
    line-height: 1.5;
    margin: 0;
}

/* Toast Actions */
.toast-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    align-items: center;
}

.toast-action {
    background: none;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md, 0.5rem);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast, 150ms);
    color: var(--gray-700);
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-action:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-1px);
}

.toast-action:focus {
    outline: 2px solid var(--primary-color, #3b82f6);
    outline-offset: 2px;
}

.toast-action.primary {
    background: var(--primary-color, #3b82f6);
    color: white;
    border-color: var(--primary-color, #3b82f6);
}

.toast-action.primary:hover {
    background: var(--primary-hover, #2563eb);
    border-color: var(--primary-hover, #2563eb);
}

.toast-action.danger {
    background: var(--danger-color, #ef4444);
    color: white;
    border-color: var(--danger-color, #ef4444);
}

.toast-action.danger:hover {
    background: var(--danger-hover, #dc2626);
    border-color: var(--danger-hover, #dc2626);
}

/* Close Button */
.toast-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--gray-400);
    border-radius: var(--radius-md, 0.5rem);
    transition: all var(--transition-fast, 150ms);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 300;
    flex-shrink: 0;
    margin-top: -2px;
    margin-right: -var(--spacing-sm);
}

.toast-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
    transform: scale(1.1);
}

.toast-close:focus {
    outline: 2px solid var(--primary-color, #3b82f6);
    outline-offset: 1px;
}

/* Progress Bar for Auto-dismiss */
.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--primary-color, #3b82f6);
    border-radius: 0 0 var(--radius-xl, 1rem) var(--radius-xl, 1rem);
    transform-origin: left center;
    transition: transform linear;
}

.toast.success .toast-progress {
    background: var(--success-color, #10b981);
}

.toast.error .toast-progress {
    background: var(--danger-color, #ef4444);
}

.toast.warning .toast-progress {
    background: var(--warning-color, #f59e0b);
}

.toast.info .toast-progress {
    background: var(--info-color, #0ea5e9);
}

/* Animation Variants */
.toast.slide-left {
    transform: translateX(-100%);
}

.toast.slide-left.visible {
    transform: translateX(0);
}

.toast.slide-left.hiding {
    transform: translateX(-100%);
}

.toast.slide-up {
    transform: translateY(-100%);
}

.toast.slide-up.visible {
    transform: translateY(0);
}

.toast.slide-up.hiding {
    transform: translateY(-100%);
}

.toast.slide-down {
    transform: translateY(100%);
}

.toast.slide-down.visible {
    transform: translateY(0);
}

.toast.slide-down.hiding {
    transform: translateY(100%);
}

.toast.fade {
    transform: scale(0.9);
}

.toast.fade.visible {
    transform: scale(1);
}

.toast.fade.hiding {
    transform: scale(0.9);
}

.toast.bounce {
    animation: toast-bounce-in 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes toast-bounce-in {
    0% {
        opacity: 0;
        transform: translateX(100%) scale(0.9);
    }
    50% {
        opacity: 1;
        transform: translateX(-5%) scale(1.02);
    }
    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

/* Loading State */
.toast.loading .toast-icon {
    background: var(--info-light, #e0f2fe);
    color: var(--info-color, #0ea5e9);
}

.toast.loading .toast-icon::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--info-color, #0ea5e9);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .toast-container {
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        left: var(--spacing-lg);
        max-width: none;
    }
    
    .toast-container.bottom-right,
    .toast-container.bottom-left {
        bottom: var(--spacing-lg);
    }
    
    .toast {
        min-width: auto;
        margin: 0;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .toast-title {
        font-size: var(--font-size-sm, 0.875rem);
    }
    
    .toast-message {
        font-size: var(--font-size-xs, 0.75rem);
    }
    
    .toast-actions {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .toast-action {
        flex: 1;
        min-width: 80px;
    }
}

/* High Contrast Mode */
.high-contrast .toast {
    background: var(--surface-primary, #ffffff);
    border: 2px solid var(--gray-900, #000000);
}

.high-contrast .toast::before {
    width: 6px;
}

.high-contrast .toast-close {
    border: 1px solid var(--gray-700, #374151);
}

.high-contrast .toast-action {
    border-width: 2px;
}

/* Reduced Motion */
.reduced-motion .toast,
.reduced-motion .toast-close,
.reduced-motion .toast-action,
.reduced-motion .toast-progress {
    transition: none;
    animation: none;
}

.reduced-motion .toast.loading .toast-icon::before {
    animation: none;
    border-top-color: var(--info-color, #0ea5e9);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .toast {
        background: rgba(30, 41, 59, 0.95);
        border-color: rgba(71, 85, 105, 0.3);
    }
    
    .toast-title {
        color: var(--gray-100, #f1f5f9);
    }
    
    .toast-message {
        color: var(--gray-300, #cbd5e1);
    }
    
    .toast-close {
        color: var(--gray-400, #94a3b8);
    }
    
    .toast-close:hover {
        background: var(--gray-700, #374151);
        color: var(--gray-200, #e2e8f0);
    }
    
    .toast-action {
        background: var(--gray-700, #374151);
        border-color: var(--gray-600, #475569);
        color: var(--gray-200, #e2e8f0);
    }
    
    .toast-action:hover {
        background: var(--gray-600, #475569);
    }
}

/* Print Styles */
@media print {
    .toast-container {
        display: none !important;
    }
}

/* Focus Management for Accessibility */
.toast:focus-within {
    outline: 2px solid var(--primary-color, #3b82f6);
    outline-offset: 2px;
}

/* Stack Animation for Multiple Toasts */
.toast-container .toast + .toast {
    margin-top: calc(-1 * var(--spacing-md));
    transform: translateX(100%) scale(0.95);
    z-index: -1;
}

.toast-container .toast.visible + .toast {
    transform: translateX(8px) scale(0.95);
}

.toast-container .toast.visible + .toast.visible {
    transform: translateX(0) scale(1);
    margin-top: 0;
    z-index: auto;
}

/* Maximum toast limit styling */
.toast-container[data-count="5"] .toast:nth-child(n+6) {
    display: none;
}

.toast-container[data-count="4"] .toast:nth-child(5) {
    transform: scale(0.9);
    opacity: 0.7;
}

.toast-container[data-count="3"] .toast:nth-child(4) {
    transform: scale(0.95);
    opacity: 0.8;
}