/* ============================================================
   Product Page — KidsTools
   Figma: node 48:3590 — 1360w, 2 колонки (882 gallery+tabs + 438 buy-panel)
   ============================================================ */

.kt-product {
    padding: 40px 0 80px;
}

/* ── Breadcrumb + title ── */
.kt-product__head {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-bottom: var(--space-5);
    max-width: 882px;
}

.kt-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-wide);
}

.kt-breadcrumb__link {
    color: var(--color-text);
    opacity: 0.5;
    text-decoration: none;
}
.kt-breadcrumb__link:hover { opacity: 1; color: var(--color-primary); }

.kt-breadcrumb__sep {
    color: var(--color-text);
    opacity: 0.3;
}

.kt-breadcrumb__current {
    color: var(--color-text);
}

.kt-product__title {
    font-family: var(--font-sans);
    font-size: 32px;
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text);
    margin: 0;
}

/* ── Layout: grid-template-areas (desktop: gallery+buy row, tabs+buy row) ── */
.kt-product__layout {
    display: grid;
    grid-template-columns: 1fr 438px;
    grid-template-areas:
        "gallery buy"
        "tabs    buy";
    grid-template-rows: auto 1fr;
    gap: var(--space-8);
    align-items: flex-start;
}

.kt-product-gallery  { grid-area: gallery; min-width: 0; }
.kt-buy-panel        { grid-area: buy; }
.kt-tabs             { grid-area: tabs; min-width: 0; }

/* Gallery */
.kt-product-gallery {
    display: grid;
    grid-template-columns: 91px 1fr;
    gap: var(--space-6);
    height: 740px;
}

.kt-product-gallery__thumbs {
    display: flex;
    flex-direction: column;
    gap: 18px;
    overflow-y: auto;
}

.kt-product-gallery__thumb {
    width: 91px;
    height: 92px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-neutral-100);
    cursor: pointer;
    border: 2px solid transparent;
    padding: 0;
    flex-shrink: 0;
    transition: border-color var(--duration-base) var(--ease-standard);
}

.kt-product-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.kt-product-gallery__thumb.is-active {
    border-color: var(--color-primary);
}

.kt-product-gallery__main {
    position: relative;
    width: 100%;
    height: 740px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-neutral-100);
}

.kt-product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    cursor: pointer;
}

/* Стрелки prev/next поверх главного фото — появляются при hover на десктопе,
   на мобиле всегда видны (touch). Скрываются если фото одно (через [hidden]). */
.kt-product-gallery__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    opacity: 0;
    transition: opacity 0.18s, background 0.18s;
}
.kt-product-gallery__arrow svg { width: 22px; height: 22px; }
.kt-product-gallery__arrow:hover { background: #fff; }
.kt-product-gallery__arrow--prev { left: 12px; }
.kt-product-gallery__arrow--next { right: 12px; }
.kt-product-gallery__main:hover .kt-product-gallery__arrow { opacity: 1; }
@media (hover: none) {
    .kt-product-gallery__arrow { opacity: 1; }
}
.kt-product-gallery__arrow[hidden] { display: none; }

.kt-product-gallery__badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-3) var(--space-4) var(--space-2);
    border-radius: var(--radius-md);
    background: var(--color-secondary);
    color: var(--color-on-secondary);
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

/* ── Tabs ── */
.kt-tabs {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.kt-tabs__list {
    display: flex;
    border-bottom: 1px solid var(--color-neutral-100);
    list-style: none;
    padding: 0;
    margin: 0;
}

.kt-tabs__tab {
    flex: 1;
    padding: var(--space-4) var(--space-5);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    opacity: 0.5;
    cursor: pointer;
    text-align: center;
    transition:
        opacity var(--duration-base) var(--ease-standard),
        border-color var(--duration-base) var(--ease-standard),
        color var(--duration-base) var(--ease-standard);
}

.kt-tabs__tab:hover { opacity: 1; }

.kt-tabs__tab.is-active {
    opacity: 1;
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.kt-tabs__panels {
    padding: var(--space-7);
}

.kt-tabs__panel { display: none; }
.kt-tabs__panel.is-active { display: block; }

.kt-tabs__desc {
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    line-height: 1.6;
    color: var(--color-text);
    opacity: 0.75;
    margin: 0 0 var(--space-6);
}

/* Specs table */
.kt-specs {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
}

.kt-specs th,
.kt-specs td {
    text-align: left;
    padding: var(--space-3) var(--space-6);
    border-bottom: 1px solid var(--color-neutral-100);
    font-weight: var(--font-weight-semibold);
    vertical-align: top;
    width: 50%;
}

.kt-specs thead th {
    font-weight: var(--font-weight-bold);
    background: var(--color-neutral-50);
    color: var(--color-text);
}

.kt-specs tbody th { color: var(--color-text); opacity: 0.5; }
.kt-specs tbody td { color: var(--color-text); }

/* ═════════════ RIGHT: Buy Panel (sticky) ═════════════ */
.kt-buy-panel {
    position: sticky;
    top: 160px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-neutral-100);
    padding: var(--space-7);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.kt-buy-panel__sku {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-text);
    opacity: 0.5;
    margin: 0;
}

.kt-buy-panel__title {
    font-family: var(--font-sans);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.15;
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text);
    margin: 0;
}

.kt-buy-panel__rating {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    opacity: 0.6;
}

.kt-stars {
    display: inline-flex;
    gap: 2px;
    color: var(--color-neutral-300);
}

.kt-stars__star { width: 18px; height: 18px; }
.kt-stars__star.is-filled { color: var(--color-primary); }

.kt-buy-panel__price {
    display: inline-flex;
    align-items: flex-end;
    gap: var(--space-1);
    color: var(--color-primary);
    line-height: 1;
}

.kt-buy-panel__price-val {
    font-family: var(--font-sans);
    font-size: 32px;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: var(--letter-spacing-tight);
}

.kt-buy-panel__price-cur {
    font-family: var(--font-num);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
}

.kt-buy-panel__divider {
    height: 1px;
    background: var(--color-neutral-100);
    border: none;
    margin: 0;
}

/* Color swatches — reuse cart-modal style */
.kt-buy-panel__section-label {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin: 0 0 var(--space-4);
    line-height: 1;
}

.kt-buy-panel__colors {
    display: flex;
    gap: var(--space-4);
}

.kt-buy-panel__color-swatch {
    position: relative;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 0;
    transition: transform var(--duration-base) var(--ease-standard);
}

.kt-buy-panel__color-swatch:hover { transform: translateY(-2px); }

.kt-buy-panel__color-swatch::after {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M5 13l4 4L19 7'/></svg>") center/12px no-repeat;
    transform: scale(0);
    transition: transform var(--duration-base) var(--ease-standard);
}
.kt-buy-panel__color-swatch.is-selected::after { transform: scale(1); }

/* Variant rows with dotted separator */
.kt-buy-panel__variants {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.kt-buy-panel__variant {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: var(--space-2);
}

.kt-buy-panel__variant-dots {
    border-bottom: 2px dotted var(--color-neutral-300);
    min-height: 1em;
    margin: 0 var(--space-2);
}

.kt-buy-panel__variant-price {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-right: var(--space-3);
}

/* Buttons */
.kt-buy-panel__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

/* ═════════════ Related sections (carousels) ═════════════ */
.kt-related {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-neutral-100);
}

.kt-related__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-9);
    gap: var(--space-4);
}

.kt-related__title {
    font-family: var(--font-sans);
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    line-height: 1;
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text);
    margin: 0;
}

.kt-related__nav {
    display: flex;
    gap: var(--space-2);
}

.kt-related__nav-btn {
    width: 56px;
    height: 56px;
    border: 1px solid var(--color-neutral-100);
    border-radius: 50%;
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition:
        background-color var(--duration-base) var(--ease-standard),
        border-color var(--duration-base) var(--ease-standard);
}

.kt-related__nav-btn:hover { background: var(--color-neutral-50); }
.kt-related__nav-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.kt-related__nav-btn svg { width: 22px; height: 22px; }

/* Carousel viewport */
.kt-related__viewport {
    overflow-x: auto;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
}
.kt-related__viewport::-webkit-scrollbar { display: none; }

.kt-related__track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, calc((100% - var(--space-6) * 4) / 5));
    gap: var(--space-6);
}

.kt-related__track > * {
    scroll-snap-align: start;
}

/* ═════════════ Mobile (Figma 49:5294) ═════════════ */
@media (max-width: 900px) {
    .kt-product { padding: var(--space-5) 0; }

    /* Стакаем колонки, порядок: gallery → buy → tabs */
    .kt-product__layout {
        grid-template-columns: 1fr;
        grid-template-areas:
            "gallery"
            "buy"
            "tabs";
        gap: var(--space-6);
    }

    /* На мобиле H1 над галереей скрыт — заголовок уже есть в buy-panel (Figma) */
    .kt-product__head { gap: var(--space-4); margin-bottom: var(--space-4); }
    .kt-product__title { display: none; }

    /* Gallery: main (square) сверху, миниатюры горизонтально под ним */
    .kt-product-gallery {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
        height: auto;
        gap: var(--space-3);
    }
    .kt-product-gallery__thumbs {
        flex-direction: row;
        order: 2;
        overflow-x: auto;
        overflow-y: visible;
        padding: var(--space-1) 0;
        gap: var(--space-2);
    }
    .kt-product-gallery__thumb { width: 64px; height: 64px; }
    .kt-product-gallery__main {
        height: auto;
        aspect-ratio: 1 / 1;
        order: 1;
    }
    .kt-product-gallery__badge {
        padding: var(--space-2) var(--space-3) 6px;
        font-size: var(--font-size-sm);
    }

    /* Buy panel без бордера/паддинга на мобиле — как "продолжение" галереи */
    .kt-buy-panel {
        position: static;
        padding: 0;
        border: none;
        gap: var(--space-4);
    }
    .kt-buy-panel__title { font-size: var(--font-size-xl); }
    .kt-buy-panel__price-val { font-size: 28px; }

    /* Tabs: горизонтальный скролл */
    .kt-tabs__list {
        overflow-x: auto;
        scrollbar-width: none;
    }
    .kt-tabs__list::-webkit-scrollbar { display: none; }
    .kt-tabs__tab {
        flex: 0 0 auto;
        min-width: 140px;
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-sm);
    }
    .kt-tabs__panels { padding: var(--space-5) 0; }
    .kt-tabs__desc { font-size: var(--font-size-sm); }

    /* Specs — сжать колонки и паддинги */
    .kt-specs th,
    .kt-specs td {
        padding: var(--space-3);
        font-size: var(--font-size-sm);
    }

    /* Related секции */
    .kt-related { margin-top: var(--space-7); padding-top: var(--space-7); }
    .kt-related__head { margin-bottom: var(--space-5); }
    .kt-related__title { font-size: var(--font-size-2xl); }
    .kt-related__nav { display: none; }
    .kt-related__track {
        grid-auto-columns: calc((100vw - var(--space-4) * 2 - var(--space-3)) / 2);
        gap: var(--space-4);
    }
}

@media (max-width: 420px) {
    .kt-product-gallery__thumb { width: 56px; height: 56px; }
}

/* WYSIWYG description output (план #3) */
.kt-desc-html { line-height: 1.7; color: var(--baseblack-400); }
.kt-desc-html h2 { font-size: 1.15em; font-weight: 700; margin: 1em 0 .4em; }
.kt-desc-html h3 { font-size: 1em; font-weight: 600; margin: .8em 0 .3em; }
.kt-desc-html ul, .kt-desc-html ol { padding-left: 1.4em; margin: .5em 0; }
.kt-desc-html li { margin: .2em 0; }
.kt-desc-html a { color: var(--yellow-600, #ca8a04); text-decoration: underline; }

/* Video embed responsive container */
.kt-video-wrap { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px; }
.kt-video-wrap iframe,
.kt-video-wrap video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; border-radius: 8px; }

/* Старая цена на панели покупки (план #3) */
.kt-buy-panel__old-price {
    font-size: 0.85em;
    color: var(--grey-400);
    text-decoration: line-through;
    margin-left: 8px;
    font-weight: 400;
}

/* «Микс» цветовой чип */
.kt-color-mix {
    background: conic-gradient(
        #ff6b6b 0deg 60deg, #ffd93d 60deg 120deg, #6bcb77 120deg 180deg,
        #4d96ff 180deg 240deg, #c77dff 240deg 300deg, #ff6b6b 300deg 360deg
    ) !important;
}