/* =============================================================
   YVES SOFER — PRODUCT DETAIL PAGE
   Scope: .product-page (prevents bleed onto other views)
   ============================================================= */

/* ---- Breadcrumb ---- */
.product-page .product-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 16px 0 24px;
    font-size: .78rem;
    color: var(--color-muted);
}

.product-page .product-breadcrumbs a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.product-page .product-breadcrumbs strong {
    color: var(--color-ink);
    font-weight: 700;
}

/* ---- Product detail grid ---- */
.product-page .product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
    padding-bottom: 48px;
}

/* ---- Gallery ---- */
.product-page .product-gallery {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: sticky;
    top: calc(var(--header-height) + 16px);
}

.product-page .product-gallery__main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    aspect-ratio: 4/3;
}

.product-page .product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity .25s;
}

.product-page .product-gallery__placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 3rem;
    font-style: italic;
    color: rgba(0, 102, 204, .18);
}

.product-page .product-gallery__thumbs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.product-page .product-gallery__thumb {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--color-border);
    background: var(--color-bg-soft);
    padding: 0;
    cursor: pointer;
    transition: border-color .2s;
    flex-shrink: 0;
}

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

.product-page .product-gallery__thumb:hover {
    border-color: var(--color-secondary);
}

/* Active thumbnail: cobalt filled */
.product-page .product-gallery__thumb.is-active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary);
}

/* ---- Product info panel ---- */
.product-page .product-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-top: 8px;
}

.product-page .product-info__title {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2.5vw + .5rem, 2.2rem);
    font-style: italic;
    font-weight: 700;
    line-height: 1.1;
    margin: 0;
    color: var(--color-ink);
}

.product-page .product-info__ref {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0;
}

/* Price + stock row */
.product-page .product-info__pricing {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.product-page .product-info__price {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-primary);
}

.product-page .product-info__stock {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(6, 214, 160, .12);
    color: #087a5d;
    border: 1px solid rgba(6, 214, 160, .3);
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .04em;
}

.product-page .product-info__intro {
    font-size: .92rem;
    line-height: 1.65;
    color: var(--color-muted);
    margin: 0;
}

/* ---- Variation selector ---- */
.product-page .product-info__variations {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-page .product-info__variations-label {
    font-size: .74rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.product-page .product-variation-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.product-page .product-variation-btn {
    padding: 8px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--color-ink);
    font-size: .82rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color .18s, background .18s, color .18s;
}

.product-page .product-variation-btn:hover {
    border-color: var(--color-primary);
    background: rgba(0, 102, 204, .06);
}

/* Active: cobalt filled */
.product-page .product-variation-btn.is-active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

/* ---- Purchase form ---- */
.product-page .product-purchase {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 20px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-bg-soft);
}

.product-page .product-purchase__row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.product-page .product-purchase__row .field--quantity {
    width: 100px;
    flex-shrink: 0;
}

.product-page .product-purchase__btn {
    flex: 1;
    justify-content: center;
    min-height: 52px;
    font-size: .84rem;
}

.product-page .product-purchase__note {
    font-size: .76rem;
    color: var(--color-muted);
    margin: 0;
    line-height: 1.5;
}

/* ---- Trust chips ---- */
.product-page .product-trust {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.product-page .product-trust__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: #fff;
    font-size: .74rem;
    font-weight: 700;
    color: var(--color-ink);
}

.product-page .product-trust__chip i {
    color: var(--color-primary);
    font-size: .8rem;
}

/* ---- Tabs ---- */
.product-page .product-tabs {
    border-top: 1px solid var(--color-border);
    padding-top: 40px;
    padding-bottom: 48px;
}

.product-page .product-tabs__nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 28px;
}

.product-page .product-tabs__tab {
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: var(--color-muted);
    font-size: .84rem;
    font-weight: 700;
    letter-spacing: .04em;
    cursor: pointer;
    position: relative;
    transition: color .18s;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.product-page .product-tabs__tab:hover {
    color: var(--color-ink);
}

.product-page .product-tabs__tab.is-active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.product-page .product-tabs__panel {
    animation: tabFadeIn .2s ease;
}

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: none; }
}

/* Rich text in description tab */
.product-page .rich-text {
    font-size: .92rem;
    line-height: 1.75;
    color: var(--color-ink);
    max-width: 68ch;
}

.product-page .rich-text h2,
.product-page .rich-text h3 {
    font-family: var(--font-serif);
    margin-top: 1.4em;
}

.product-page .rich-text p { margin: 0 0 .9em; }

/* Spec list in characteristics tab */
.product-page .spec-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-page .spec-list li {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
}

.product-page .spec-list li strong {
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.product-page .spec-list li span {
    font-size: .88rem;
    font-weight: 600;
    color: var(--color-ink);
}

.product-page .attribute-stack {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-page .attribute-card {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: .85rem;
}

.product-page .attribute-card strong {
    font-weight: 700;
    color: var(--color-ink);
}

.product-page .attribute-card span {
    color: var(--color-muted);
}

/* Shipping info */
.product-page .shipping-info {
    max-width: 60ch;
    font-size: .9rem;
    line-height: 1.7;
    color: var(--color-ink);
}

.product-page .shipping-info p { margin: 0 0 .8em; }
.product-page .shipping-info ul { padding-left: 1.4em; margin: 0 0 .8em; }
.product-page .shipping-info li { margin-bottom: .4em; }
.product-page .shipping-info a { color: var(--color-primary); text-decoration: underline; }

/* ---- Related products ---- */
.product-page .related-products {
    padding: 48px 0 64px;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-soft);
    margin: 0 calc((100vw - 100%) / -2);
    padding-left: max(24px, calc((100vw - 1240px) / 2 + 16px));
    padding-right: max(24px, calc((100vw - 1240px) / 2 + 16px));
}

.product-page .related-products__header {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 28px;
}

.product-page .related-products__header h2 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    margin: 0;
}

.product-page .related-products .product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* =============================================================
   RESPONSIVE
   ============================================================= */

@media (max-width: 1023px) {
    .product-page .product-detail {
        gap: 32px;
    }

    .product-page .related-products .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .product-page .product-detail {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .product-page .product-gallery {
        position: static;
    }

    .product-page .product-gallery__thumbs {
        gap: 8px;
    }

    .product-page .product-gallery__thumb {
        width: 60px;
        height: 60px;
    }

    .product-page .product-tabs__tab {
        padding: 10px 14px;
        font-size: .78rem;
    }

    .product-page .spec-list {
        grid-template-columns: 1fr;
    }

    .product-page .related-products .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .product-page .product-purchase__row {
        flex-direction: column;
        align-items: stretch;
    }

    .product-page .product-purchase__row .field--quantity {
        width: 100%;
    }
}

@media (max-width: 359px) {
    .product-page .related-products .product-grid {
        grid-template-columns: 1fr;
    }
}