/* ============================================================
   FILTERS.CSS — فیلترها + نوار مرتب‌سازی + چیدمان محصولات
   ============================================================ */

/* ============================================================
   FILTERS PANEL — سایدبار فیلتر
   ============================================================ */
.filters-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    padding: 26px 22px;
    position: sticky;
    top: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
}

.filters-panel::-webkit-scrollbar {
    width: 6px;
}

.filters-panel::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 10px;
}

.filters-panel::-webkit-scrollbar-thumb:hover {
    background: var(--gold);
}

/* ===== HEADER ===== */
.filters-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 18px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--line);
}

.filters-header h2 {
    font-size: 1.1rem;
    color: var(--gold);
    margin: 0;
}

.filters-clear {
    background: none;
    border: 0;
    color: var(--muted);
    font-size: 11px;
    cursor: pointer;
    padding: 4px 8px;
    transition: color var(--transition-fast);
    display: none;
}

.filters-clear:hover {
    color: var(--gold);
}

.filters-panel.has-active-filters .filters-clear {
    display: inline-block;
}

/* ===== GROUPS ===== */
.filter-group {
    border: 0;
    padding: 0;
    margin: 0 0 22px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--line);
}

.filter-group:last-of-type {
    border-bottom: 0;
    padding-bottom: 0;
}

.filter-legend {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--cream);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 14px;
    padding: 0;
    letter-spacing: .3px;
}

.filter-count {
    display: none;
    font-size: 10px;
    background: #c3a36a22;
    color: var(--gold);
    padding: 1px 7px;
    border-radius: var(--radius-pill);
    font-family: Georgia, serif;
}

.filter-group.has-selection .filter-count {
    display: inline-block;
}

.filter-group.has-selection .filter-legend {
    color: var(--gold);
}

/* ===== OPTIONS ===== */
.filter-options {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), color var(--transition-fast);
    position: relative;
    font-size: 13px;
    color: var(--muted);
}

.filter-option:hover {
    background: #c3a36a0e;
    color: var(--cream);
}

.filter-option input[type="radio"],
.filter-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.filter-radio {
    width: 16px;
    height: 16px;
    aspect-ratio: 1 / 1;
    border: 1px solid #9f824680;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-radio::after {
    content: "";
    width: 7px;
    height: 7px;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    background: var(--gold);
    transform: scale(0);
    transition: transform var(--transition-fast);
}

.filter-option input:checked + .filter-radio {
    border-color: var(--gold);
    background: #c3a36a14;
}

.filter-option input:checked + .filter-radio::after {
    transform: scale(1);
}

.filter-option input:checked ~ .filter-label {
    color: var(--gold);
    font-weight: 500;
}

.filter-option input:focus-visible + .filter-radio {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
}

.filter-label {
    flex: 1;
    line-height: 1.6;
    transition: color var(--transition-fast);
}

.filter-empty {
    font-size: 12px;
    color: var(--muted);
    opacity: .7;
    margin: 0;
    padding: 6px 0;
}

/* ===== ORDER SELECT ===== */
.filter-group--order {
    border-bottom: 0;
}

.filter-select-wrap {
    position: relative;
}

.filter-select-wrap::after {
    content: "▾";
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
    pointer-events: none;
    font-size: 12px;
}

.filter-select-wrap select {
    width: 100%;
    padding: 11px 14px;
    padding-left: 36px;
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--cream);
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    appearance: none;
    transition: border-color var(--transition-fast);
    border-radius: var(--radius-sm);
}

.filter-select-wrap select:hover,
.filter-select-wrap select:focus {
    border-color: var(--gold);
    outline: none;
}

.filter-select-wrap select option {
    background: var(--surface);
    color: var(--cream);
    padding: 8px;
}

/* ===== ACTIONS ===== */
.filter-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 24px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.filter-submit {
    width: 100%;
    justify-content: center;
}

.filter-reset-link {
    display: block;
    text-align: center;
    font-size: 12px;
    border-bottom: 0;
    color: var(--muted);
    padding-block: 6px;
}

.filter-reset-link:hover {
    color: var(--gold);
}

/* ============================================================
   SORT BAR — نوار مرتب‌سازی
   ============================================================ */
.sort-bar {
    background: var(--surface);
    border: 1px solid var(--line);
    padding: 16px 20px;
    margin-bottom: 26px;
    transition: border-color var(--transition-base);
}

.sort-bar:hover {
    border-color: #c3a36a80;
}

.sort-bar-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.sort-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    min-width: 0;
}

.sort-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--cream);
    white-space: nowrap;
}

.sort-label svg {
    color: var(--gold);
}

.sort-form {
    min-width: 180px;
}

#sortForm select {
    width: 100%;
    padding: 9px 14px;
    padding-left: 34px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background-color: var(--bg);
    color: var(--cream);
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    appearance: none;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    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='%23c3a36a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 12px center;
}

#sortForm select:hover,
#sortForm select:focus {
    border-color: var(--gold);
    background-color: #0f2a24;
}

#sortForm select option {
    background: var(--surface);
    color: var(--cream);
    padding: 8px;
}

.sort-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #c3a36a1a;
    color: var(--gold);
    font-size: 11px;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
}

.sort-badge-dot {
    width: 6px;
    height: 6px;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    background: var(--gold);
    animation: sortPulse 1.8s ease-in-out infinite;
}

@keyframes sortPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .35; }
}

.sort-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--muted);
    background: #c3a36a0e;
    padding: 7px 14px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
}

.sort-count svg {
    color: var(--gold);
    opacity: .7;
}

.sort-count-num {
    font-weight: 600;
    color: var(--cream);
    font-family: Georgia, serif;
}

.sort-count-label {
    color: var(--muted);
    font-size: 12px;
}

/* ============================================================
   PRODUCTS LAYOUT — چیدمان دو ستونی
   ============================================================ */
.products-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: start;
}

.products-content {
    min-width: 0;
}

/* ============================================================
   CATEGORY NAV — نوار دسته‌بندی افقی
   ============================================================ */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 35px;
}

.filters a {
    border: 1px solid var(--line);
    padding: 8px 17px;
    font-size: 13px;
}

.filters a[aria-current] {
    background: var(--gold);
    color: var(--bg);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 767px) {
    .filters-panel {
        position: static;
        margin-bottom: 30px;
    }

    .filter-options {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }

    .filter-option {
        padding: 10px 8px;
        font-size: 12px;
    }

    .sort-bar {
        padding: 14px 16px;
    }

    .sort-bar-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .sort-group {
        justify-content: space-between;
    }

    .sort-form {
        min-width: 0;
        flex: 1;
    }

    #sortForm select {
        font-size: 12px;
        padding: 8px 12px 8px 30px;
    }

    .sort-count {
        justify-content: center;
    }
}

@media (min-width: 960px) {
    .filters-panel {
        padding: 30px 26px;
    }

    .filters-header h2 {
        font-size: 1.2rem;
    }

    .products-layout {
        grid-template-columns: 280px 1fr;
        gap: 40px;
    }

    .filters-panel {
        grid-column: 1;
        grid-row: 1;
        position: sticky;
        top: 100px;
    }

    .products-content {
        grid-column: 2;
        grid-row: 1;
    }
}

/* ۴ ستون در دسکتاپ (فقط در صفحه محصولات) */
@media (min-width: 1200px) {
    .products-layout .product-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
}

/* ۳ ستون در تبلت افقی */
@media (min-width: 960px) and (max-width: 1199px) {
    .products-layout .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .filter-option,
    .filter-radio,
    .filter-radio::after,
    .filter-select-wrap select,
    .sort-badge-dot {
        transition: none;
        animation: none;
    }
}