/**
 * Unified Filter Bar Styles
 * Dark theme optimized filter system
 */

.unified-filter-bar {
    background: var(--bg-card, #1a1f2e);
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-md, 1rem);
    margin-bottom: var(--spacing-xl, 2rem);
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    min-height: 80px;
    z-index: 10;
}

.filter-bar-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md, 1rem);
}

/* Main Filter Row */
.filter-row {
    display: flex;
    gap: var(--spacing-md, 1rem);
    align-items: center;
    flex-wrap: wrap;
}

/* Filter Dropdowns Container */
.filter-dropdowns {
    display: flex;
    gap: var(--spacing-sm, 0.5rem);
    align-items: center;
}

/* Filter Dropdown */
.filter-dropdown {
    position: relative;
}

.filter-button {
    padding: 0.75rem 1rem;
    background: var(--bg-main, #0f1419);
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-md, 8px);
    color: var(--text-primary, #e7e9ea);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 0.5rem);
    font-size: 0.9rem;
    transition: all var(--transition-fast, 150ms ease);
    white-space: nowrap;
}

.filter-button:hover {
    border-color: var(--text-muted, #536471);
    background: rgba(255, 255, 255, 0.05);
}

.filter-button.active,
.filter-button.has-filters {
    border-color: var(--primary, #1d9bf0);
    background: rgba(29, 155, 240, 0.1);
}

.filter-count {
    background: var(--primary, #1d9bf0);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full, 12px);
    font-size: 0.75rem;
    font-weight: 500;
    display: none;
}

.filter-button i {
    font-size: 0.75rem;
    transition: transform var(--transition-fast, 150ms ease);
}

.filter-button.active i {
    transform: rotate(180deg);
}

/* Dropdown Panel */
.dropdown-panel {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    background: var(--bg-card, #1a1f2e);
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-lg, 0 10px 15px rgba(0, 0, 0, 0.3));
    min-width: 280px;
    max-width: 360px;
    max-height: 400px;
    display: none;
    flex-direction: column;
    z-index: 1000;
}

.dropdown-panel.active {
    display: flex;
}

.dropdown-header {
    padding: var(--spacing-md, 1rem);
    border-bottom: 1px solid var(--border, #2f3336);
}

.dropdown-search {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--bg-main, #0f1419);
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-primary, #e7e9ea);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm, 0.5rem);
}

.dropdown-actions {
    display: flex;
    gap: var(--spacing-sm, 0.5rem);
}

.dropdown-actions button {
    flex: 1;
    padding: 0.375rem 0.75rem;
    background: transparent;
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-sm, 6px);
    color: var(--text-secondary, #8b98a5);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast, 150ms ease);
}

.dropdown-actions button:hover {
    border-color: var(--primary, #1d9bf0);
    color: var(--primary, #1d9bf0);
}

.dropdown-options {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm, 0.5rem);
}

.dropdown-option {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm, 6px);
    cursor: pointer;
    transition: background var(--transition-fast, 150ms ease);
}

.dropdown-option:hover {
    background: rgba(255, 255, 255, 0.05);
}

.dropdown-option input[type="checkbox"] {
    margin-right: var(--spacing-sm, 0.5rem);
}

.option-label {
    flex: 1;
    color: var(--text-primary, #e7e9ea);
    font-size: 0.875rem;
}

.option-count {
    color: var(--text-muted, #536471);
    font-size: 0.75rem;
}

/* Quick Filter Chips */
.quick-filters {
    display: flex;
    gap: var(--spacing-sm, 0.5rem);
    align-items: center;
    border-left: 1px solid var(--border, #2f3336);
    padding-left: var(--spacing-md, 1rem);
    margin-left: auto;
}

.quick-filter-chip {
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-full, 20px);
    color: var(--text-primary, #e7e9ea);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all var(--transition-fast, 150ms ease);
    white-space: nowrap;
}

.quick-filter-chip:hover {
    border-color: var(--primary, #1d9bf0);
    background: rgba(29, 155, 240, 0.1);
}

.quick-filter-chip.active {
    background: var(--primary, #1d9bf0);
    border-color: var(--primary, #1d9bf0);
    color: white;
}

/* More Filters Button */
.more-filters-btn {
    padding: 0.75rem 1rem;
    background: transparent;
    border: 1px solid var(--border, #2f3336);
    border-radius: var(--radius-md, 8px);
    color: var(--primary, #1d9bf0);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 0.5rem);
    font-size: 0.9rem;
    transition: all var(--transition-fast, 150ms ease);
    white-space: nowrap;
}

.more-filters-btn:hover {
    background: rgba(29, 155, 240, 0.1);
}

.more-filters-btn.active {
    background: var(--primary, #1d9bf0);
    color: white;
}

.more-filters-count {
    background: white;
    color: var(--primary, #1d9bf0);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full, 12px);
    font-size: 0.75rem;
    font-weight: 500;
}

/* Active Filters Bar */
.active-filters-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 0.5rem);
    padding-top: var(--spacing-md, 1rem);
    border-top: 1px solid var(--border, #2f3336);
}

.active-filter-tags {
    display: flex;
    gap: var(--spacing-sm, 0.5rem);
    flex-wrap: wrap;
    flex: 1;
}

.active-filter-tag {
    padding: 0.375rem 0.75rem;
    background: rgba(29, 155, 240, 0.1);
    border: 1px solid var(--primary, #1d9bf0);
    border-radius: var(--radius-full, 16px);
    color: var(--primary, #1d9bf0);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 0.5rem);
    cursor: default;
}

.remove-filter {
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast, 150ms ease);
    font-size: 1.2rem;
    line-height: 1;
}

.remove-filter:hover {
    opacity: 1;
}

.clear-all-link {
    background: none;
    border: none;
    color: var(--text-muted, #536471);
    cursor: pointer;
    font-size: 0.875rem;
    transition: color var(--transition-fast, 150ms ease);
    white-space: nowrap;
}

.clear-all-link:hover {
    color: var(--primary, #1d9bf0);
}

/* More Filters Expanded Section */
.more-filters-expanded {
    margin-top: var(--spacing-md, 1rem);
    padding-top: var(--spacing-md, 1rem);
    border-top: 1px solid var(--border, #2f3336);
    animation: slideDown var(--transition-base, 300ms ease);
}

.advanced-filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg, 1.5rem);
}

.filter-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary, #e7e9ea);
    margin-bottom: var(--spacing-sm, 0.5rem);
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs, 0.25rem);
}

.filter-checkbox {
    display: flex;
    align-items: center;
    padding: 0.375rem 0;
    cursor: pointer;
    transition: color var(--transition-fast, 150ms ease);
}

.filter-checkbox:hover {
    color: var(--primary, #1d9bf0);
}

.filter-checkbox input[type="checkbox"] {
    margin-right: var(--spacing-sm, 0.5rem);
    cursor: pointer;
}

.filter-checkbox span {
    font-size: 0.875rem;
    color: var(--text-secondary, #8b98a5);
}

.filter-checkbox:hover span {
    color: var(--text-primary, #e7e9ea);
}

/* Animations */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .filter-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm, 0.5rem);
    }
    
    .filter-dropdowns {
        flex-wrap: wrap;
        justify-content: flex-start;
        width: 100%;
    }
    
    .quick-filters {
        border-left: none;
        padding-left: 0;
        padding-top: var(--spacing-sm, 0.5rem);
        border-top: 1px solid var(--border, #2f3336);
        justify-content: flex-start;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .filter-dropdowns {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--spacing-xs, 0.25rem);
    }
    
    .quick-filters {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .dropdown-panel {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 400px;
    }
    
    .more-filters-expanded {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-card, #1a1f2e);
        z-index: 2000;
        padding: var(--spacing-lg, 1.5rem);
        overflow-y: auto;
        margin: 0;
        border: none;
        border-radius: 0;
    }
}

/* Mobile-specific enhancements */
@media (max-width: 480px) {
    .unified-filter-bar {
        margin: var(--spacing-sm, 0.5rem);
        padding: var(--spacing-sm, 0.5rem);
        border-radius: var(--radius-md, 8px);
    }
    
    .filter-button {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .quick-filter-chip {
        padding: 0.375rem 0.5rem;
        font-size: 0.8rem;
    }
    
    .more-filters-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .dropdown-panel {
        min-width: 240px;
    }
}

/* Touch-friendly enhancements */
@media (hover: none) and (pointer: coarse) {
    .filter-button,
    .quick-filter-chip,
    .more-filters-btn {
        min-height: 44px; /* Apple's recommended touch target size */
    }
    
    .dropdown-option {
        min-height: 44px;
        padding: 0.75rem;
    }
    
    .filter-checkbox {
        min-height: 44px;
    }
}

/* Custom Scrollbar */
.dropdown-options::-webkit-scrollbar,
.filter-dropdowns::-webkit-scrollbar,
.quick-filters::-webkit-scrollbar {
    height: 6px;
    width: 6px;
}

.dropdown-options::-webkit-scrollbar-track,
.filter-dropdowns::-webkit-scrollbar-track,
.quick-filters::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.dropdown-options::-webkit-scrollbar-thumb,
.filter-dropdowns::-webkit-scrollbar-thumb,
.quick-filters::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.dropdown-options::-webkit-scrollbar-thumb:hover,
.filter-dropdowns::-webkit-scrollbar-thumb:hover,
.quick-filters::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}