/* ============================================
   FoodSelection Shared Component Styles
   Consistent patterns across all contexts
   ============================================ */

/* Note: design-tokens.css must be loaded before this file in App.razor */

/* ==========================================
   Search Input Component
   ========================================== */
.fs-search-container {
    position: relative;
    width: 100%;
}

.fs-search-wrapper {
    background: var(--fs-bg-primary);
    border: 1px solid var(--fs-border-default);
    border-radius: var(--fs-radius-md);
    padding: var(--fs-spacing-xs);
    transition: var(--fs-transition-all);
}

.fs-search-wrapper:focus-within {
    border-color: var(--fs-border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.fs-search-input {
    width: 100%;
    border: none;
    outline: none;
    padding: var(--fs-input-padding-y) var(--fs-input-padding-x);
    font-size: var(--fs-font-size-base);
    font-family: var(--fs-font-family);
    background: transparent;
    color: var(--fs-text-primary);
}

.fs-search-input::placeholder {
    color: var(--fs-text-secondary);
}

/* Select2 Override for Consistency */
.fs-search-container .select2-container {
    width: 100% !important;
}

.fs-search-container .select2-selection--multiple {
    min-height: var(--fs-input-height);
    border: 1px solid var(--fs-border-default) !important;
    border-radius: var(--fs-radius-md) !important;
    padding: var(--fs-spacing-xs) var(--fs-spacing-sm);
    background: var(--fs-bg-primary);
    transition: var(--fs-transition-colors);
}

.fs-search-container .select2-container--focus .select2-selection--multiple {
    border-color: var(--fs-border-focus) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ==========================================
   Food Tags (Selected Items)
   ========================================== */
.fs-food-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--fs-spacing-xs);
    background: var(--fs-primary-light);
    border: 1px solid var(--fs-primary-border);
    color: var(--fs-primary);
    font-weight: var(--fs-font-weight-semibold);
    padding: var(--fs-tag-padding-y) var(--fs-tag-padding-x);
    border-radius: var(--fs-radius-pill);
    margin: var(--fs-spacing-xs);
    font-size: var(--fs-tag-font-size);
    transition: var(--fs-transition-all);
    animation: fs-tag-appear 0.3s ease-out;
}

.fs-food-tag:hover {
    background: var(--fs-primary-bg);
    transform: translateY(-1px);
    box-shadow: var(--fs-shadow-sm);
}

.fs-food-tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--fs-primary);
    color: var(--fs-text-inverse);
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--fs-transition-transform);
}

.fs-food-tag-remove:hover {
    transform: scale(1.2);
    background: var(--fs-primary-hover);
}

/* Select2 Food Tag Override */
.select2-selection__choice {
    background-color: var(--fs-primary-light) !important;
    border: 1px solid var(--fs-primary-border) !important;
    color: var(--fs-primary) !important;
    font-weight: var(--fs-font-weight-semibold);
    padding: var(--fs-tag-padding-y) var(--fs-tag-padding-x) !important;
    border-radius: var(--fs-radius-pill) !important;
    margin: var(--fs-spacing-xs) !important;
    transition: var(--fs-transition-all);
}

.select2-selection__choice:hover {
    background-color: var(--fs-primary-bg) !important;
    transform: translateY(-1px);
    box-shadow: var(--fs-shadow-sm);
}

.select2-selection__choice__remove {
    color: var(--fs-primary) !important;
    font-weight: bold;
    margin-right: var(--fs-spacing-sm) !important;
    transition: var(--fs-transition-colors);
}

/* ==========================================
   Serving Selectors
   ========================================== */
.fs-serving-selector {
    border: 1px solid var(--fs-border-default);
    border-radius: var(--fs-radius-sm);
    padding: var(--fs-spacing-sm) var(--fs-spacing-md);
    font-size: var(--fs-font-size-sm);
    color: var(--fs-text-primary);
    background: var(--fs-bg-primary);
    transition: var(--fs-transition-colors);
    cursor: pointer;
}

.fs-serving-selector:hover {
    border-color: var(--fs-border-hover);
    background: var(--fs-bg-hover);
}

.fs-serving-selector:focus {
    outline: none;
    border-color: var(--fs-border-focus);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* ==========================================
   Action Buttons
   ========================================== */
.fs-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--fs-spacing-sm);
    padding: var(--fs-button-padding-y) var(--fs-button-padding-x);
    font-size: var(--fs-font-size-base);
    font-weight: var(--fs-font-weight-semibold);
    font-family: var(--fs-font-family);
    border-radius: var(--fs-radius-md);
    border: none;
    cursor: pointer;
    transition: var(--fs-transition-all);
    text-decoration: none;
}

/* Primary Button */
.fs-button-primary {
    background: var(--fs-primary);
    color: var(--fs-text-inverse);
}

.fs-button-primary:hover:not(:disabled) {
    background: var(--fs-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--fs-shadow-primary);
}

.fs-button-primary:active:not(:disabled) {
    transform: translateY(0);
}

/* Secondary Button */
.fs-button-secondary {
    background: var(--fs-bg-secondary);
    color: var(--fs-text-primary);
    border: 1px solid var(--fs-border-default);
}

.fs-button-secondary:hover:not(:disabled) {
    background: var(--fs-bg-hover);
    border-color: var(--fs-border-hover);
    transform: translateY(-1px);
    box-shadow: var(--fs-shadow-sm);
}

/* Accent Button */
.fs-button-accent {
    background: var(--fs-accent);
    color: var(--fs-text-inverse);
}

.fs-button-accent:hover:not(:disabled) {
    background: var(--fs-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--fs-shadow-accent);
}

/* Disabled State */
.fs-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Button Sizes */
.fs-button-sm {
    padding: var(--fs-button-padding-y-sm) var(--fs-button-padding-x-sm);
    font-size: var(--fs-font-size-sm);
}

.fs-button-lg {
    padding: var(--fs-button-padding-y-lg) var(--fs-button-padding-x-lg);
    font-size: var(--fs-font-size-lg);
}

/* ==========================================
   Food Item Display
   ========================================== */
.fs-food-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--fs-spacing-md);
    background: var(--fs-bg-primary);
    border: 1px solid var(--fs-border-default);
    border-radius: var(--fs-radius-md);
    transition: var(--fs-transition-all);
    cursor: pointer;
}

.fs-food-item:hover {
    background: var(--fs-bg-hover);
    border-color: var(--fs-border-hover);
    transform: translateX(2px);
}

.fs-food-item.selected {
    background: var(--fs-bg-selected);
    border-color: var(--fs-border-selected);
}

.fs-food-item-name {
    font-weight: var(--fs-font-weight-medium);
    color: var(--fs-text-primary);
    flex: 1;
}

.fs-food-item-controls {
    display: flex;
    gap: var(--fs-spacing-sm);
    align-items: center;
}

/* ==========================================
   Loading States
   ========================================== */
.fs-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--fs-loading-overlay-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--fs-z-modal);
}

.fs-loading-content {
    background: var(--fs-bg-primary);
    padding: var(--fs-spacing-2xl);
    border-radius: var(--fs-radius-lg);
    box-shadow: var(--fs-shadow-lg);
    text-align: center;
}

.fs-loading-spinner {
    width: var(--fs-loading-spinner-size);
    height: var(--fs-loading-spinner-size);
    border: 3px solid var(--fs-border-default);
    border-top-color: var(--fs-primary);
    border-radius: 50%;
    animation: fs-spin 1s linear infinite;
}

.fs-loading-text {
    margin-top: var(--fs-spacing-lg);
    color: var(--fs-text-secondary);
    font-size: var(--fs-font-size-sm);
}

/* ==========================================
   Empty States
   ========================================== */
.fs-empty-state {
    text-align: center;
    padding: var(--fs-spacing-4xl) var(--fs-spacing-xl);
    color: var(--fs-text-secondary);
}

.fs-empty-icon {
    font-size: 3rem;
    margin-bottom: var(--fs-spacing-lg);
    opacity: 0.3;
}

.fs-empty-title {
    font-size: var(--fs-font-size-xl);
    font-weight: var(--fs-font-weight-semibold);
    color: var(--fs-text-primary);
    margin-bottom: var(--fs-spacing-sm);
}

.fs-empty-description {
    font-size: var(--fs-font-size-base);
    color: var(--fs-text-secondary);
    margin-bottom: var(--fs-spacing-xl);
}

/* ==========================================
   Helper Text
   ========================================== */
.fs-helper-text {
    font-size: var(--fs-font-size-sm);
    color: var(--fs-text-secondary);
    font-style: italic;
    margin-top: var(--fs-spacing-sm);
}

/* ==========================================
   Context Indicators
   ========================================== */
.fs-context-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--fs-spacing-xs);
    padding: var(--fs-spacing-xs) var(--fs-spacing-md);
    background: var(--fs-accent-light);
    color: var(--fs-accent);
    border-radius: var(--fs-radius-pill);
    font-size: var(--fs-font-size-xs);
    font-weight: var(--fs-font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fs-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--fs-spacing-sm);
    margin-bottom: var(--fs-spacing-xl);
    font-size: var(--fs-font-size-sm);
    color: var(--fs-text-secondary);
}

.fs-breadcrumb-separator {
    color: var(--fs-text-muted);
}

.fs-breadcrumb-current {
    color: var(--fs-text-primary);
    font-weight: var(--fs-font-weight-semibold);
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fs-tag-appear {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fs-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes fs-slide-in {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   Mobile Responsive Overrides
   ========================================== */
@media (max-width: 768px) {
    .fs-search-input {
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    .fs-button {
        width: 100%;
        padding: var(--fs-spacing-lg) var(--fs-spacing-xl);
    }
    
    .fs-food-item {
        flex-direction: column;
        align-items: stretch;
        gap: var(--fs-spacing-md);
    }
    
    .fs-food-item-controls {
        width: 100%;
        justify-content: space-between;
    }
    
    .fs-serving-selector {
        flex: 1;
    }
    
    .fs-empty-state {
        padding: var(--fs-spacing-2xl) var(--fs-spacing-lg);
    }
}

/* ==========================================
   Accessibility Enhancements
   ========================================== */
.fs-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus Visible for Keyboard Navigation */
.fs-button:focus-visible,
.fs-food-item:focus-visible,
.fs-serving-selector:focus-visible {
    outline: 2px solid var(--fs-primary);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .fs-button-primary {
        border: 2px solid currentColor;
    }
    
    .fs-food-tag {
        border-width: 2px;
    }
}