/* ═══════════════════════════════════════════════════════════════════════
   SHOP FILTERS & SORT — Enterprise-grade filter system
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Layout ──────────────────────────────────────────────────────────── */
.shop-layout {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.filter-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: sticky;
    top: 90px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--primary) 25%, transparent) transparent;
}

.filter-sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 16px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.products-main {
    flex: 1;
    min-width: 0;
}

/* ── Filter Sections ─────────────────────────────────────────────────── */
.filter-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-section-title {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    margin: 0;
}

.filter-section-title i {
    color: var(--accent);
    font-size: 12px;
}

/* ── Toolbar ─────────────────────────────────────────────────────────── */
.shop-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
    padding: 12px 16px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.shop-result-count {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

.shop-result-count span {
    font-weight: 800;
    color: var(--accent);
}

.shop-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ── Filter Toggle Button (Mobile) ───────────────────────────────────── */
.shop-filter-toggle {
    display: none;
    position: relative;
    align-items: center;
    gap: 6px;
}

.filter-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--accent);
    color: #1a1a2e;
    font-size: 10px;
    font-weight: 800;
    line-height: 1;
}

/* ── Custom Sort Dropdown ────────────────────────────────────────────── */
.shop-sort-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.shop-sort-label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
}

.shop-sort-label i {
    color: var(--accent);
    font-size: 11px;
}

.custom-sort-dropdown {
    position: relative;
}

.sort-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    font-family: inherit;
    line-height: 1.4;
    white-space: nowrap;
}

.sort-dropdown-trigger:hover,
.custom-sort-dropdown.open .sort-dropdown-trigger {
    border-color: var(--accent);
    background: var(--surface-hover);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 10%, transparent);
}

.sort-chevron {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform .25s cubic-bezier(.4,0,.2,1);
}

.custom-sort-dropdown.open .sort-chevron {
    transform: rotate(180deg);
}

.sort-dropdown-panel {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 220px;
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0,0,0,.35);
    z-index: 50;
    opacity: 0;
    transform: translateY(-8px) scale(.97);
    pointer-events: none;
    transition: all .2s cubic-bezier(.4,0,.2,1);
    overflow: hidden;
    padding: 6px;
}

.custom-sort-dropdown.open .sort-dropdown-panel {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

.sort-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 9px 12px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all .15s;
    text-align: right;
    font-family: inherit;
    line-height: 1.4;
}

.sort-option:hover {
    background: var(--surface-hover);
    color: var(--accent);
}

.sort-option.selected {
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    color: var(--accent);
    font-weight: 700;
}

.sort-option.selected::before {
    content: "\2713";
    margin-right: auto;
    font-size: 12px;
    font-weight: 800;
    color: var(--accent);
}

.sort-option i {
    font-size: 12px;
    width: 16px;
    text-align: center;
    opacity: .6;
}

.sort-option:hover i,
.sort-option.selected i {
    opacity: 1;
}

/* ── Active Filter Chips ─────────────────────────────────────────────── */
.active-filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
    padding: 10px 14px;
    background: color-mix(in srgb, var(--primary) 6%, transparent);
    border: 1px solid color-mix(in srgb, var(--primary) 15%, transparent);
    border-radius: var(--radius);
}

.filter-chip-sm {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 11.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    user-select: none;
}

.filter-chip-sm:hover {
    border-color: rgba(239,68,68,.5);
    background: rgba(239,68,68,.1);
    color: #ef4444;
}

.filter-chip-sm i {
    font-size: 9px;
    opacity: .7;
}

.filter-chip-sm.clear-all {
    background: transparent;
    border-style: dashed;
    color: var(--text-muted);
}

.filter-chip-sm.clear-all:hover {
    color: #ef4444;
    border-color: rgba(239,68,68,.4);
    background: rgba(239,68,68,.05);
}

/* ── Price Range Slider ──────────────────────────────────────────────── */
.price-range-slider {
    position: relative;
    height: 36px;
    margin: 8px 0 4px;
}

.price-range-track {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    transform: translateY(-50%);
}

.price-range-fill {
    position: absolute;
    height: 100%;
    background: var(--grad);
    border-radius: 2px;
}

.price-range-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    pointer-events: none;
    z-index: 2;
}

.price-range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--surface-2);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 35%, transparent);
    cursor: pointer;
    pointer-events: all;
    transition: transform .15s, box-shadow .15s;
}

.price-range-input::-webkit-slider-thumb:hover {
    transform: scale(1.25);
    box-shadow: 0 2px 14px color-mix(in srgb, var(--primary) 55%, transparent);
}

.price-range-input::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--surface-2);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 35%, transparent);
    cursor: pointer;
    pointer-events: all;
}

.price-range-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    font-weight: 700;
}

.price-label-val {
    color: var(--accent);
    background: color-mix(in srgb, var(--primary) 8%, transparent);
    padding: 2px 8px;
    border-radius: 6px;
    min-width: 80px;
    text-align: center;
    font-size: 11px;
}

.price-range-sep {
    color: var(--text-muted);
    font-size: 11px;
    flex-shrink: 0;
}

/* ── Brand List ──────────────────────────────────────────────────────── */
.brand-search-input {
    font-size: 12px;
    padding: 6px 10px;
}

.brand-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--primary) 20%, transparent) transparent;
}

.brand-check-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: background .15s;
    font-size: 12.5px;
}

.brand-check-item:hover {
    background: color-mix(in srgb, var(--primary) 6%, transparent);
}

.brand-check-item input {
    display: none;
}

.brand-check-mark {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-radius: 4px;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    transition: all .2s;
}

.brand-check-item input:checked + .brand-check-mark {
    background: var(--accent);
    border-color: var(--accent);
}

.brand-check-item input:checked + .brand-check-mark::after {
    content: "\2713";
    color: #fff;
    font-size: 10px;
    font-weight: 800;
}

.brand-check-name {
    flex: 1;
    color: var(--text);
    font-weight: 500;
}

.brand-check-count {
    font-size: 10.5px;
    color: var(--text-muted);
    background: rgba(255,255,255,.06);
    padding: 1px 6px;
    border-radius: 999px;
    font-weight: 600;
}

.brand-check-item.hidden {
    display: none;
}

/* ── Rating Filter ───────────────────────────────────────────────────── */
.rating-filter-list {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.rating-filter-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all .15s;
    font-size: 12.5px;
}

.rating-filter-item:hover {
    background: color-mix(in srgb, var(--primary) 6%, transparent);
}

.rating-filter-item.active {
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent);
}

.rating-stars {
    display: flex;
    gap: 1px;
    font-size: 11px;
    color: var(--text-muted);
}

.rating-stars .filled {
    color: #fbbf24;
}

.rating-label {
    flex: 1;
    color: var(--text);
    font-weight: 500;
}

.rating-check {
    color: var(--accent);
    font-size: 10px;
}

/* ── Mobile Filter Drawer ────────────────────────────────────────────── */
.filter-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
}

.filter-drawer-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.filter-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: var(--surface);
    border-left: 1px solid var(--border);
    z-index: 999;
    display: flex;
    flex-direction: column;
    transition: right .3s cubic-bezier(.4,0,.2,1);
    box-shadow: -8px 0 32px rgba(0,0,0,.3);
}

.filter-drawer.open {
    right: 0;
}

.filter-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.filter-drawer-head h3 {
    font-size: 15px;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
}

.filter-drawer-head h3 i {
    color: var(--accent);
}

.filter-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.filter-drawer-foot {
    display: flex;
    gap: 8px;
    padding: 14px 16px;
    border-top: 1px solid var(--border);
}

.filter-drawer-foot .btn {
    flex: 1;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 992px) {
    .filter-sidebar {
        display: none;
    }

    .shop-filter-toggle {
        display: inline-flex;
    }

    .shop-layout {
        flex-direction: column;
    }

    .shop-toolbar {
        flex-wrap: wrap;
    }

    .shop-sort-wrap {
        flex: 1;
    }

    .custom-sort-dropdown {
        width: 100%;
    }

    .sort-dropdown-trigger {
        width: 100%;
        justify-content: space-between;
    }

    .sort-dropdown-panel {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .shop-toolbar {
        padding: 10px 12px;
        gap: 8px;
    }

    .shop-sort-label {
        display: none;
    }

    .sort-dropdown-trigger {
        min-width: 120px;
    }

    .active-filters-bar {
        padding: 8px 10px;
    }

    .filter-drawer {
        width: 280px;
    }
}

/* ── Light mode tweaks ───────────────────────────────────────────────── */
body:not(.dark) .filter-sidebar-inner {
    background: rgba(255,255,255,.95);
    border-color: color-mix(in srgb, var(--primary-2, #7c3aed) 15%, transparent);
}

body:not(.dark) .filter-chip-sm {
    background: rgba(255,255,255,.9);
}

body:not(.dark) .brand-check-mark {
    border-color: color-mix(in srgb, var(--primary-2, #7c3aed) 30%, transparent);
}

body:not(.dark) .shop-toolbar {
    background: rgba(255,255,255,.95);
}

body:not(.dark) .filter-drawer {
    background: #fff;
}

body:not(.dark) .sort-dropdown-panel {
    background: #fff;
    border-color: color-mix(in srgb, var(--primary-2, #7c3aed) 20%, transparent);
    box-shadow: 0 12px 40px rgba(0,0,0,.12);
}

body:not(.dark) .sort-option:hover {
    background: color-mix(in srgb, var(--primary-2, #7c3aed) 6%, transparent);
}

body:not(.dark) .sort-option.selected {
    background: color-mix(in srgb, var(--primary-2, #7c3aed) 8%, transparent);
}

body:not(.dark) .price-label-val {
    background: color-mix(in srgb, var(--primary-2, #7c3aed) 6%, transparent);
}