/* NutriUI - CSS Unificado para Feedback Visual v1.1 */
/* Requiere: nutri-variables.css */

/* Toast Notifications Container */
.nutri-toast-container {
    position: fixed;
    top: var(--nutri-spacing-lg);
    right: var(--nutri-spacing-lg);
    z-index: var(--nutri-z-toast);
    max-width: 400px;
    pointer-events: none;
}

.nutri-toast {
    background: white;
    border-left: 4px solid;
    padding: var(--nutri-spacing-md) var(--nutri-spacing-lg);
    margin-bottom: var(--nutri-spacing-sm);
    border-radius: var(--nutri-radius-md);
    box-shadow: var(--nutri-shadow-xl);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideInRight 0.3s var(--nutri-ease-out);
    pointer-events: all;
    max-width: 100%;
    backdrop-filter: blur(10px);
}

.nutri-toast-success { 
    border-color: var(--nutri-success);
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.05), white);
}

.nutri-toast-error { 
    border-color: var(--nutri-error);
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.05), white);
}

.nutri-toast-warning { 
    border-color: var(--nutri-warning);
    background: linear-gradient(90deg, rgba(245, 158, 11, 0.05), white);
}

.nutri-toast-info { 
    border-color: var(--nutri-info);
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.05), white);
}

/* Fallback para navegadores sin backdrop-filter */
@supports not (backdrop-filter: blur(10px)) {
    .nutri-toast {
        background: white;
    }
}

.nutri-toast-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--nutri-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    font-weight: var(--nutri-font-bold);
}

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

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

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

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

.nutri-toast-message {
    flex: 1;
    font-size: var(--nutri-text-sm);
    line-height: 1.5;
    color: var(--nutri-gray-900);
    font-weight: var(--nutri-font-medium);
}

.nutri-toast-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    color: var(--nutri-gray-500);
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--nutri-radius-sm);
    transition: all var(--nutri-transition-fast) ease;
}

.nutri-toast-close:hover {
    background: var(--nutri-gray-100);
    color: var(--nutri-gray-900);
}

@keyframes slideInRight {
    from { 
        transform: translateX(100%); 
        opacity: 0; 
    }
    to { 
        transform: translateX(0); 
        opacity: 1; 
    }
}

/* Loading States Modernizados */
.nutri-loading-inline {
    display: flex;
    align-items: center;
    gap: var(--nutri-spacing-sm);
    font-size: var(--nutri-text-sm);
    color: var(--nutri-gray-600);
    margin-top: var(--nutri-spacing-sm);
}

.nutri-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--nutri-gray-100);
    border-top-color: var(--nutri-primary);
    border-radius: var(--nutri-radius-full);
    animation: spin 0.8s linear infinite;
}

.nutri-loading-text {
    font-weight: var(--nutri-font-medium);
    color: var(--nutri-gray-700);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Field Errors Mejorados */
.nutri-field-error {
    color: var(--nutri-error);
    font-size: var(--nutri-text-xs);
    margin-top: var(--nutri-spacing-xs);
    display: block;
    line-height: 1.4;
    font-weight: var(--nutri-font-medium);
}

.nutri-field-error input,
.nutri-field-error select,
.nutri-field-error textarea {
    border-color: var(--nutri-error) !important;
    box-shadow: var(--nutri-shadow-error) !important;
}

/* Global Errors Premium */
.nutri-global-error {
    padding: var(--nutri-spacing-lg);
    border: 1.5px solid var(--nutri-error);
    border-radius: var(--nutri-radius-md);
    background: var(--nutri-error-light);
    margin-bottom: var(--nutri-spacing-lg);
    text-align: center;
    animation: slideDown 0.3s var(--nutri-ease-out);
}

.nutri-error-icon {
    font-size: 48px;
    margin-bottom: 10px;
    display: block;
}

.nutri-error-content h3 {
    color: var(--nutri-error-dark);
    margin: 0 0 var(--nutri-spacing-sm) 0;
    font-size: var(--nutri-text-lg);
    font-weight: var(--nutri-font-bold);
}

.nutri-error-content p {
    color: var(--nutri-error-dark);
    margin: 0 0 var(--nutri-spacing-md) 0;
    font-size: var(--nutri-text-sm);
    line-height: 1.5;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Save Indicator */
.nutri-save-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 15px;
}

.nutri-save-indicator.nutri-dirty {
    background: #fff3cd;
    border-color: #ffeaa7;
}

.nutri-save-indicator.nutri-saving {
    background: #d1ecf1;
    border-color: #bee5eb;
}

.nutri-save-status {
    font-weight: 600;
    color: #333;
}

.nutri-save-time {
    color: #666;
    font-size: 11px;
}

.nutri-save-manual {
    background: none;
    border: none;
    font-size: 14px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 2px;
    transition: background 0.2s;
}

.nutri-save-manual:hover:not(:disabled) {
    background: rgba(0,124,186,0.1);
}

.nutri-save-manual:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Search Loading */
.nutri-search-loading {
    padding: 20px;
    text-align: center;
    color: #666;
    background: #f8f9fa;
    border-radius: 4px;
}

.nutri-search-loading .nutri-spinner {
    width: 20px;
    height: 20px;
    margin-right: 10px;
}

/* Search Error */
.nutri-search-error {
    padding: 20px;
    border: 1px solid #dc3545;
    border-radius: 8px;
    background: #f8d7da;
    text-align: center;
}

.nutri-search-error .nutri-error-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.nutri-search-error h3 {
    color: #dc3545;
    margin: 0 0 10px 0;
    font-size: 16px;
}

.nutri-search-error p {
    color: #721c24;
    margin: 0 0 15px 0;
    font-size: 14px;
}

.nutri-error-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Search Empty */
.nutri-search-empty {
    padding: 20px;
    text-align: center;
    background: #f8f9fa;
    border-radius: 8px;
}

.nutri-empty-icon {
    font-size: 36px;
    margin-bottom: 10px;
    display: block;
}

.nutri-empty-content h3 {
    color: #333;
    margin: 0 0 10px 0;
    font-size: 16px;
}

.nutri-empty-content p {
    color: #666;
    margin: 0 0 15px 0;
    font-size: 14px;
}

.nutri-empty-content ul {
    text-align: left;
    margin: 0 0 15px 0;
    padding-left: 20px;
    color: #666;
    font-size: 13px;
}

.nutri-empty-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Recent Searches */
.nutri-recent-searches {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 4px;
}

.nutri-recent-searches h4 {
    margin: 0 0 10px 0;
    font-size: 14px;
    color: #666;
}

.nutri-recent-searches ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nutri-recent-searches li {
    margin-bottom: 5px;
}

.nutri-recent-search-btn {
    background: none;
    border: none;
    color: #007cba;
    text-align: left;
    width: 100%;
    padding: 5px 10px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.2s;
}

.nutri-recent-search-btn:hover {
    background: rgba(0,124,186,0.1);
}

/* Botones Modernizados */
.nutri-button {
    padding: 10px 20px;
    border: 1.5px solid;
    border-radius: var(--nutri-radius-md);
    font-size: var(--nutri-text-sm);
    font-weight: var(--nutri-font-semibold);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--nutri-spacing-sm);
    transition: all var(--nutri-transition-base) var(--nutri-ease-in-out);
    font-family: var(--nutri-font-sans);
    line-height: 1.2;
    min-height: 40px;
}

.nutri-button-primary {
    background: linear-gradient(135deg, var(--nutri-primary), var(--nutri-primary-hover));
    color: white;
    border: none;
    box-shadow: var(--nutri-shadow-sm);
}

.nutri-button-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--nutri-shadow-md);
}

.nutri-button-primary:active {
    transform: translateY(0);
}

.nutri-button-secondary {
    background: white;
    color: var(--nutri-gray-700);
    border-color: var(--nutri-gray-300);
}

.nutri-button-secondary:hover {
    background: var(--nutri-gray-50);
    border-color: var(--nutri-gray-400);
    color: var(--nutri-gray-900);
}

.nutri-button-danger {
    background: var(--nutri-error);
    color: white;
    border: none;
    box-shadow: var(--nutri-shadow-sm);
}

.nutri-button-danger:hover {
    background: var(--nutri-error-dark);
    transform: translateY(-1px);
    box-shadow: var(--nutri-shadow-md);
}

.nutri-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .nutri-toast-container {
        top: var(--nutri-spacing-sm);
        right: var(--nutri-spacing-sm);
        left: var(--nutri-spacing-sm);
        max-width: none;
    }
    
    .nutri-toast {
        margin-bottom: var(--nutri-spacing-sm);
        padding: 12px 16px;
    }
    
    .nutri-toast-message {
        font-size: var(--nutri-text-xs);
    }
    
    .nutri-error-actions,
    .nutri-empty-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nutri-button {
        width: 100%;
        justify-content: center;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .nutri-toast,
    .nutri-global-error,
    .nutri-spinner,
    .nutri-button {
        animation: none;
        transition: none;
    }
    
    .nutri-toast {
        transform: none;
        opacity: 1;
    }
    
    .nutri-button:hover {
        transform: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .nutri-toast {
        border-width: 3px;
    }
    
    .nutri-field-error input,
    .nutri-field-error select,
    .nutri-field-error textarea {
        border-width: 2px;
    }
    
    .nutri-button {
        border-width: 2px;
    }
}

/* Focus visible para accesibilidad teclado */
.nutri-button:focus-visible,
.nutri-toast-close:focus-visible {
    outline: 2px solid var(--nutri-primary);
    outline-offset: 2px;
}