/* ==============================================
   filter-bar.css - Category Tabs, Sort Dropdown
   ============================================== */

.filter-bar {
    margin-bottom: var(--space-6);
}

/* Category Tabs (shadcn Tabs style) */
.filter-tabs {
    display: flex;
    gap: var(--space-1);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.filter-tabs::-webkit-scrollbar {
    display: none;
}

.filter-tab {
    display: inline-flex;
    align-items: center;
    gap: var(--space-15);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-md);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: transparent;
    border-radius: var(--radius-btn);
    white-space: nowrap;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.filter-tab:hover {
    color: var(--color-text);
    background-color: var(--color-secondary-bg);
}

.filter-tab.active {
    color: hsl(var(--primary-foreground));
    background-color: var(--color-primary);
    font-weight: var(--font-semibold);
}

.tab-count {
    font-size: var(--text-2xs);
    opacity: 0.7;
}

/* Sub-category tabs */
.filter-sub-tabs {
    display: flex;
    gap: var(--space-1);
    padding: var(--space-3) 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.filter-sub-tabs::-webkit-scrollbar {
    display: none;
}

.filter-sub-tab {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.filter-sub-tab:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-sub-tab.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: hsl(var(--primary-foreground));
}

/* Sort Row */
.filter-sort-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) 0;
}

.result-count {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: var(--font-medium);
}

/* shadcn Select style */
.sort-select {
    appearance: none;
    -webkit-appearance: none;
    padding: var(--space-15) var(--space-8) var(--space-15) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-2) center;
    transition: border-color var(--transition-fast);
}

.sort-select:hover {
    border-color: var(--color-primary);
}

.sort-select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* --- Filter Label --- */
.filter-label {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    white-space: nowrap;
    flex-shrink: 0;
}

/* --- Price Range Filter (#23) --- */
.filter-price-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.price-presets {
    display: flex;
    gap: var(--space-1);
    flex-wrap: wrap;
}

.price-preset-btn {
    padding: var(--space-1) var(--space-25);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.price-preset-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.price-preset-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: hsl(var(--primary-foreground));
}

.price-reset-btn {
    color: hsl(var(--destructive));
    border-color: hsl(var(--destructive));
}

.price-reset-btn:hover {
    background-color: hsl(var(--destructive));
    border-color: hsl(var(--destructive));
    color: hsl(var(--destructive-foreground));
}

.price-custom {
    display: flex;
    align-items: center;
    gap: var(--space-15);
    margin-left: auto;
}

.price-input {
    width: 100px;
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    outline: none;
    transition: border-color var(--transition-fast);
}

.price-input:focus {
    border-color: var(--color-primary);
}

.price-input::placeholder {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}

.price-separator {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.price-apply-btn {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
}

/* --- Brand Filter (#24) --- */
.filter-brand-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.brand-select-wrap {
    flex: 1;
    max-width: 240px;
}

.brand-select {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    padding: var(--space-15) var(--space-8) var(--space-15) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-2) center;
    transition: border-color var(--transition-fast);
}

.brand-select:hover {
    border-color: var(--color-primary);
}

.brand-select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* --- Advanced Filters (on_sale, free_shipping, in_stock, rating) --- */
.filter-advanced-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    flex-wrap: wrap;
    border-top: 1px solid var(--color-border);
}

.filter-checkbox {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    cursor: pointer;
    white-space: nowrap;
}

.filter-checkbox input[type="checkbox"] {
    accent-color: var(--color-primary);
    width: 1rem;
    height: 1rem;
}

.filter-rating-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.rating-select {
    appearance: none;
    -webkit-appearance: none;
    padding: 0.375rem 2rem 0.375rem 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    font-size: 0.875rem;
    font-weight: var(--font-medium);
    color: var(--color-text);
    background-color: var(--color-card-bg);
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    transition: border-color var(--transition-fast);
}

.rating-select:hover {
    border-color: var(--color-primary);
}

.rating-select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* --- Nested Sub-tabs (3rd level) --- */
.filter-sub-tabs--nested {
    padding-left: var(--space-4);
    border-left: 2px solid var(--color-primary);
}

/* --- Category Breadcrumb --- */
.category-breadcrumb {
    max-width: 1200px;
    margin: 0 auto var(--space-2);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.category-breadcrumb-link {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.category-breadcrumb-link:hover {
    color: var(--color-primary);
}

.category-breadcrumb-sep {
    margin: 0 var(--space-1);
}

.category-breadcrumb-current {
    color: var(--color-text);
    font-weight: var(--font-medium);
}

/* === Category Keyword Chips (COMP-05) === */
.category-chips {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--space-3) 0;
    scroll-snap-type: x proximity;
}

.category-chips::-webkit-scrollbar {
    display: none;
}

.category-chip {
    display: inline-flex;
    align-items: center;
    padding: var(--space-15) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    white-space: nowrap;
    transition: all var(--transition-fast);
    scroll-snap-align: start;
    flex-shrink: 0;
    cursor: pointer;
    text-decoration: none;
}

.category-chip:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

.category-chip.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: hsl(var(--primary-foreground));
    font-weight: var(--font-semibold);
}

/* --- Responsive for price/brand filters --- */
@media (max-width: 640px) {
    .filter-price-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .price-custom {
        margin-left: 0;
        width: 100%;
    }

    .price-input {
        flex: 1;
        width: auto;
        min-width: 0;
    }

    .filter-brand-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .brand-select-wrap {
        max-width: 100%;
        width: 100%;
    }

    .filter-advanced-row {
        gap: 0.75rem;
    }

    .filter-rating-wrap {
        margin-left: 0;
        width: 100%;
    }
}