:root {
    --compare-primary: #224173;
    --compare-primary-dark: #1b3560;
    --compare-primary-soft: #eef3fb;
    --compare-danger: #c62828;
    --compare-text: #1f2937;
    --compare-muted: #64748b;
    --compare-border: #e2e8f0;
    --compare-card: #ffffff;
    --compare-bg: #f6f8fb;
}

/* =========================================
   دکمه مقایسه صفحه جزئیات
   ========================================= */

/* =========================================
   دکمه مقایسه صفحه جزئیات
   زیر دکمه علاقه‌مندی
   ========================================= */

.product-compare-button,
.product-compare-button:visited {
    position: absolute;
    top: 70px;
    left: 14px;
    z-index: 8;
    width: 46px;
    height: 46px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #dfe5ec;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.96);
    color: #475569 !important;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.12);
    text-decoration: none !important;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

    .product-compare-button:hover,
    .product-compare-button:focus-visible {
        border-color: var(--compare-primary);
        background: var(--compare-primary-soft);
        color: var(--compare-primary-dark) !important;
        text-decoration: none !important;
        transform: translateY(-2px);
    }

    .product-compare-button:focus-visible {
        outline: 3px solid rgba(37, 99, 235, 0.18);
        outline-offset: 2px;
    }

    .product-compare-button i {
        font-size: 16px;
    }

    .product-compare-button .compare-button-text {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

/* =========================================
   صفحه مقایسه
   ========================================= */

body.product-compare-page {
    background: var(--compare-bg) !important;
}

.compare-page-shell {
    min-height: 650px;
    padding: 34px 0 70px;
    color: var(--compare-text);
    direction: rtl;
}

.compare-page-container {
    width: min(100%, 1440px);
    margin: 0 auto;
    padding: 0 26px;
}

/* سربرگ صفحه */

.compare-page-header {
    margin-bottom: 18px;
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border: 1px solid var(--compare-border);
    border-radius: 16px;
    background: var(--compare-card);
    box-shadow: 0 12px 34px rgba(30, 41, 59, 0.055);
}

    .compare-page-header h1 {
        margin: 8px 0 4px;
        color: var(--compare-text);
        font-size: 1.15rem;
        font-weight: 900;
    }

    .compare-page-header p {
        margin: 0;
        color: var(--compare-muted);
        font-size: 0.78rem;
        line-height: 1.9;
    }

.compare-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #94a3b8;
    font-size: 0.7rem;
}

    .compare-breadcrumb a {
        max-width: 360px;
        overflow: hidden;
        color: var(--compare-muted);
        text-decoration: none;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

.compare-back-link,
.compare-back-link:visited {
    min-height: 42px;
    padding: 9px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1px solid #cfdae7;
    border-radius: 10px;
    background: #ffffff;
    color: var(--compare-primary) !important;
    font-size: 0.75rem;
    font-weight: 800;
    text-decoration: none !important;
    white-space: nowrap;
}

    .compare-back-link:hover {
        border-color: var(--compare-primary);
        background: var(--compare-primary-soft);
    }

/* نوار ابزار */

.compare-toolbar {
    margin-bottom: 12px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border: 1px solid var(--compare-border);
    border-radius: 13px;
    background: var(--compare-card);
}

.compare-differences-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #334155;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
}

    .compare-differences-toggle input {
        position: absolute;
        opacity: 0;
        pointer-events: none;
    }

.compare-toggle-track {
    position: relative;
    width: 39px;
    height: 22px;
    flex: 0 0 39px;
    border-radius: 20px;
    background: #cbd5e1;
    transition: background-color 0.2s ease;
}

    .compare-toggle-track::after {
        position: absolute;
        top: 3px;
        right: 3px;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: #ffffff;
        box-shadow: 0 1px 4px rgba(15, 23, 42, 0.25);
        content: "";
        transition: transform 0.2s ease;
    }

.compare-differences-toggle
input:checked +
.compare-toggle-track {
    background: var(--compare-primary);
}

    .compare-differences-toggle
    input:checked +
    .compare-toggle-track::after {
        transform: translateX(-17px);
    }

.compare-differences-toggle
input:disabled +
.compare-toggle-track {
    opacity: 0.45;
}

.compare-clear-button {
    padding: 7px 10px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--compare-danger);
    font: inherit;
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
}

    .compare-clear-button:hover {
        background: #fff1f0;
    }

.compare-scroll-hint {
    display: none;
    margin-bottom: 9px;
    color: var(--compare-muted);
    font-size: 0.66rem;
}

/* =========================================
   جدول مقایسه
   ========================================= */

.compare-table-scroll {
    overflow: auto;
    border: 1px solid var(--compare-border);
    border-radius: 15px;
    background: var(--compare-card);
    box-shadow: 0 12px 32px rgba(30, 41, 59, 0.05);
    scrollbar-color: #b8c5d5 #eef2f7;
    scrollbar-width: thin;
}

.compare-table {
    min-width: 1160px;
}

.compare-products-row,
.compare-spec-row {
    display: grid;
    grid-template-columns: 180px repeat(4, minmax(230px, 1fr));
}

.compare-products-row {
    min-height: 340px;
    border-bottom: 1px solid var(--compare-border);
}

/* عنوان هر ردیف */

.compare-row-heading {
    position: sticky;
    right: 0;
    z-index: 4;
    padding: 16px;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--compare-border);
    background: #f8fafc;
    color: #475569;
    font-size: 0.74rem;
    font-weight: 800;
}

.compare-products-heading {
    align-items: flex-start;
    padding-top: 24px;
}

/* کارت محصول */

.compare-product-card,
.compare-empty-product {
    position: relative;
    min-width: 0;
    padding: 20px 17px;
    border: 0;
    border-left: 1px solid var(--compare-border);
    background: #ffffff;
}

.compare-product-card {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.compare-remove-product {
    position: absolute;
    top: 11px;
    left: 11px;
    z-index: 2;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 50%;
    background: #f1f5f9;
    color: #64748b;
    cursor: pointer;
}

    .compare-remove-product:hover {
        background: #fff0ef;
        color: var(--compare-danger);
    }

.compare-product-image {
    width: 100%;
    height: 155px;
    margin-bottom: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .compare-product-image img {
        max-width: 100%;
        width: 150px;
        height: 150px;
        object-fit: contain;
    }

.compare-product-title,
.compare-product-title:visited {
    min-height: 45px;
    display: -webkit-box;
    overflow: hidden;
    color: var(--compare-text) !important;
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1.9;
    text-decoration: none !important;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

    .compare-product-title:hover {
        color: var(--compare-primary) !important;
    }

.compare-product-brand {
    min-height: 22px;
    margin-top: 4px;
    color: var(--compare-muted);
    font-size: 0.65rem;
}

.compare-product-price {
    min-height: 48px;
    margin-top: auto;
    padding-top: 8px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

    .compare-product-price del {
        color: #94a3b8;
        font-size: 0.62rem;
    }

    .compare-product-price strong {
        color: var(--compare-text);
        font-size: 0.82rem;
        font-weight: 900;
    }

.compare-stock-status {
    margin-top: 7px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.64rem;
    font-weight: 700;
}

    .compare-stock-status.is-available {
        color: #168653;
    }

    .compare-stock-status.is-unavailable {
        color: #b42318;
    }

/* ستون خالی افزودن محصول */

.compare-empty-product {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--compare-primary);
    font: inherit;
    cursor: pointer;
}

    .compare-empty-product:hover,
    .compare-empty-product:focus-visible {
        background: #f8fbff;
        outline: 0;
    }

.compare-empty-icon {
    width: 62px;
    height: 62px;
    margin-bottom: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed #91a8c8;
    border-radius: 50%;
    background: var(--compare-primary-soft);
    font-size: 1.2rem;
}

.compare-empty-product strong {
    font-size: 0.8rem;
}

.compare-empty-product small {
    margin-top: 5px;
    color: var(--compare-muted);
    font-size: 0.63rem;
}

/* مشخصات فنی */

.compare-section-title {
    padding: 14px 18px;
    border-bottom: 1px solid var(--compare-border);
    background: var(--compare-primary-soft);
    color: var(--compare-primary);
    font-size: 0.8rem;
    font-weight: 900;
}

.compare-spec-row {
    min-height: 62px;
    border-bottom: 1px solid var(--compare-border);
}

    .compare-spec-row:last-child {
        border-bottom: 0;
    }

.compare-value-cell {
    min-width: 0;
    padding: 15px 17px;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--compare-border);
    color: #334155;
    font-size: 0.72rem;
    line-height: 1.9;
    overflow-wrap: anywhere;
}

.compare-no-difference {
    margin-top: 12px;
    padding: 14px;
    border: 1px solid #cbd9ea;
    border-radius: 11px;
    background: var(--compare-primary-soft);
    color: var(--compare-primary);
    font-size: 0.75rem;
    text-align: center;
}

    /* عناصر مخفی */

    .compare-no-difference[hidden],
    .compare-picker[hidden],
    .compare-picker-backdrop[hidden],
    .compare-candidate[hidden],
    .compare-candidate-empty[hidden],
    .compare-spec-row[hidden] {
        display: none !important;
    }

/* =========================================
   پنجره انتخاب محصول
   ========================================= */

body.compare-picker-open {
    overflow: hidden;
}

.compare-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 50000;
    background: rgba(15, 23, 42, 0.5);
    opacity: 0;
    backdrop-filter: blur(2px);
    transition: opacity 0.18s ease;
}

    .compare-picker-backdrop.is-open {
        opacity: 1;
    }

.compare-picker {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 50010;
    width: min(900px, calc(100vw - 30px));
    max-height: min(720px, calc(100vh - 40px));
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--compare-border);
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 28px 80px rgba(15, 23, 42, 0.28);
    direction: rtl;
    opacity: 0;
    transform: translate(-50%, -47%) scale(0.98);
    transition: opacity 0.18s ease, transform 0.18s ease;
}

    .compare-picker.is-open {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }

.compare-picker-header {
    padding: 17px 19px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    border-bottom: 1px solid var(--compare-border);
}

    .compare-picker-header h2 {
        margin: 0;
        color: var(--compare-text);
        font-size: 0.95rem;
        font-weight: 900;
    }

    .compare-picker-header p {
        margin: 4px 0 0;
        color: var(--compare-muted);
        font-size: 0.68rem;
    }

.compare-picker-close {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 50%;
    background: #f1f5f9;
    color: #475569;
    cursor: pointer;
}

    .compare-picker-close:hover {
        background: #e8edf3;
        color: var(--compare-danger);
    }

/* جست‌وجوی محصول */

.compare-picker-search {
    position: relative;
    margin: 15px 18px;
}

    .compare-picker-search i {
        position: absolute;
        top: 50%;
        right: 14px;
        color: #94a3b8;
        transform: translateY(-50%);
    }

    .compare-picker-search input {
        width: 100%;
        height: 48px;
        padding: 0 43px 0 14px;
        border: 1px solid #d8e1ec;
        border-radius: 11px;
        outline: 0;
        background: #f8fafc;
        color: var(--compare-text);
        font: inherit;
        font-size: 0.76rem;
    }

        .compare-picker-search input:focus {
            border-color: var(--compare-primary);
            background: #ffffff;
            box-shadow: 0 0 0 4px rgba(34, 65, 115, 0.09);
        }

/* محصولات قابل انتخاب */

.compare-candidate-list {
    padding: 0 18px 20px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.compare-candidate {
    min-width: 0;
    min-height: 112px;
    padding: 11px;
    display: grid;
    grid-template-columns: 82px minmax(0, 1fr) 32px;
    align-items: center;
    gap: 11px;
    border: 1px solid var(--compare-border);
    border-radius: 12px;
    background: #ffffff;
    color: var(--compare-text);
    font: inherit;
    text-align: right;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

    .compare-candidate:hover,
    .compare-candidate:focus-visible {
        border-color: #9eb2ce;
        background: #f8fbff;
        outline: 0;
    }

    .compare-candidate > img {
        width: 82px;
        height: 82px;
        object-fit: contain;
    }

.compare-candidate-info {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

    .compare-candidate-info strong {
        overflow: hidden;
        color: var(--compare-text);
        font-size: 0.72rem;
        line-height: 1.8;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .compare-candidate-info small {
        color: var(--compare-muted);
        font-size: 0.62rem;
    }

    .compare-candidate-info b {
        margin-top: 7px;
        color: var(--compare-primary);
        font-size: 0.7rem;
    }

.compare-candidate-add {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--compare-primary-soft);
    color: var(--compare-primary);
}

.compare-candidate-empty {
    margin: 0 18px 20px;
    padding: 30px 16px;
    border: 1px dashed #cbd5e1;
    border-radius: 12px;
    color: var(--compare-muted);
    font-size: 0.75rem;
    text-align: center;
}

/* =========================================
   دارک‌مود
   ========================================= */

body.dark-mode.product-compare-page {
    background: #0f172a !important;
}

body.dark-mode .product-compare-button,
body.dark-mode .product-compare-button:visited {
    border-color: #475569;
    background: rgba(30, 41, 59, 0.96);
    color: #cbd5e1 !important;
}

    body.dark-mode .product-compare-button:hover,
    body.dark-mode .product-compare-button:focus-visible {
        border-color: #60a5fa;
        background: #1e3a5f;
        color: #bfdbfe !important;
    }

body.dark-mode .compare-page-header,
body.dark-mode .compare-toolbar,
body.dark-mode .compare-table-scroll,
body.dark-mode .compare-product-card,
body.dark-mode .compare-empty-product,
body.dark-mode .compare-picker,
body.dark-mode .compare-candidate {
    border-color: #334155;
    background: #1e293b;
}

    body.dark-mode .compare-page-header h1,
    body.dark-mode .compare-product-title,
    body.dark-mode .compare-product-price strong,
    body.dark-mode .compare-picker-header h2,
    body.dark-mode .compare-candidate-info strong,
    body.dark-mode .compare-value-cell {
        color: #e2e8f0 !important;
    }

body.dark-mode .compare-row-heading {
    border-color: #334155;
    background: #172033;
    color: #cbd5e1;
}

body.dark-mode .compare-products-row,
body.dark-mode .compare-spec-row,
body.dark-mode .compare-value-cell,
body.dark-mode .compare-picker-header {
    border-color: #334155;
}

body.dark-mode .compare-picker-search input {
    border-color: #3b4b61;
    background: #26364b;
    color: #e2e8f0;
}

body.dark-mode .compare-remove-product,
body.dark-mode .compare-picker-close {
    background: #26364b;
    color: #cbd5e1;
}

/* =========================================
   تبلت و موبایل
   ========================================= */

@media (max-width: 991.98px) {
    .product-compare-button,
    .product-compare-button:visited {
        top: 62px;
        left: 10px;
        width: 42px;
        height: 42px;
    }

        .product-compare-button i {
            font-size: 15px;
        }

    body.product-detail-page
    .sidebar-card {
        gap: 8px;
    }

        body.product-detail-page
        .sidebar-card
        .price-tag {
            min-width: 0;
            flex: 1 1 auto;
        }

    .compare-scroll-hint {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .compare-page-shell {
        padding-top: 20px;
    }

    .compare-page-container {
        padding: 0 13px;
    }

    .compare-page-header {
        padding: 17px;
    }

    .compare-back-link span {
        display: none;
    }

    .compare-back-link {
        width: 40px;
        min-width: 40px;
        padding: 0;
    }
}

@media (max-width: 600px) {
    .compare-page-header {
        align-items: flex-start;
    }

        .compare-page-header h1 {
            font-size: 1rem;
        }

    .compare-breadcrumb a {
        max-width: 190px;
    }

    .compare-toolbar {
        padding: 11px 12px;
    }

    .compare-clear-button span {
        display: none;
    }

    .compare-picker {
        top: auto;
        right: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        max-height: 86vh;
        border-radius: 18px 18px 0 0;
        transform: translateY(18px);
    }

        .compare-picker.is-open {
            transform: translateY(0);
        }

    .compare-candidate-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 390px) {
    body.product-detail-page
    .sidebar-card
    .btn-buy {
        min-width: 105px;
    }

    body.product-detail-page
    .sidebar-card
    .price-tag {
        font-size: 0.82rem !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .product-compare-button,
    .compare-toggle-track,
    .compare-toggle-track::after,
    .compare-picker,
    .compare-picker-backdrop,
    .compare-candidate {
        transition: none !important;
    }
}