/* Product detail — wide BIS layout */
body.bis-product-page {
    background: #f9f9f9;
    color: #000000;
    font-family: var(--bis-font);
}

body.bis-product-page .hero_area {
    min-height: 0 !important;
    background: #f9f9f9;
}

body.bis-product-page .hero_area > .bg-box {
    display: none !important;
}

.bis-product {
    width: 100%;
    background: #f9f9f9;
    padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.25rem, 4vw, 3.5rem) clamp(3rem, 5vw, 4.5rem);
}

.bis-product__crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
    margin: 0 0 clamp(1.75rem, 3vw, 2.5rem);
    padding: 0;
    font-size: 0.6875rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.bis-product__crumb a {
    color: #666666;
    text-decoration: none;
}

.bis-product__crumb a:hover {
    color: #000000;
}

.bis-product__crumb-sep {
    color: #cccccc;
}

.bis-product__crumb-current {
    color: #000000;
}

.bis-product__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 1fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
}

/* Gallery */
.bis-product__gallery {
    position: relative;
    min-height: clamp(360px, 50vh, 620px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f9f9f9;
}

.bis-product__gallery-viewport {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.bis-product__gallery-track {
    display: flex;
    height: 100%;
    min-height: clamp(360px, 50vh, 620px);
    transition: transform 0.6s var(--bis-ease);
}

.bis-product__gallery-slide {
    flex: 0 0 100%;
    min-width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 3rem;
}

.bis-product__gallery-slide img {
    width: 100%;
    max-width: min(100%, 560px);
    max-height: min(68vh, 620px);
    object-fit: contain;
    object-position: center;
}

.bis-product__gallery-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid #000000;
    background: #ffffff;
    color: #000000;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 0.2s ease, opacity 0.2s ease;
}

.bis-product__gallery-btn:hover:not(:disabled) {
    background: #000000;
    color: #ffffff;
}

.bis-product__gallery-btn:disabled {
    opacity: 0.25;
    cursor: default;
}

.bis-product__gallery-btn--prev {
    left: 0;
}

.bis-product__gallery-btn--next {
    right: 0;
}

/* Info column */
.bis-product__info {
    padding-top: clamp(0.5rem, 2vw, 1.5rem);
    max-width: 560px;
}

.bis-product__title {
    margin: 0 0 1rem;
    font-family: var(--bis-font);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 600;
    letter-spacing: 0.06em;
    line-height: 1.1;
    text-transform: uppercase;
    color: #000000;
}

.bis-product__tagline {
    margin: 0 0 1.75rem;
    font-size: clamp(0.6875rem, 1.1vw, 0.8125rem);
    font-weight: 400;
    letter-spacing: 0.1em;
    line-height: 1.65;
    text-transform: uppercase;
    color: #000000;
}

.bis-product__meta {
    margin: -1rem 0 1.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: #666666;
}

.bis-product__price-row {
    margin: 0 0 2rem;
}

.bis-product__price-old {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
    color: #666666;
    text-decoration: line-through;
}

.bis-product__price {
    margin: 0;
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #000000;
}

.bis-product__discount {
    display: inline-block;
    margin-top: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: #000000;
}

.bis-product__actions {
    margin-bottom: 2.25rem;
}

.bis-product__qty-label {
    display: block;
    margin-bottom: 0.65rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #000000;
}

.bis-product__buy-row {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 0.75rem;
}

.bis-product__stepper {
    display: inline-flex;
    align-items: stretch;
    border: 1px solid #000000;
}

.bis-product__stepper-btn {
    width: 2.5rem;
    border: none;
    background: #ffffff;
    color: #000000;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s ease;
}

.bis-product__stepper-btn:hover {
    background: #f0f0f0;
}

.bis-product__stepper-input {
    width: 3rem;
    border: none;
    border-left: 1px solid #000000;
    border-right: 1px solid #000000;
    text-align: center;
    font-family: var(--bis-font);
    font-size: 0.875rem;
    font-weight: 500;
    color: #000000;
    background: #ffffff;
    -moz-appearance: textfield;
}

.bis-product__stepper-input::-webkit-outer-spin-button,
.bis-product__stepper-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.bis-product__add-btn {
    flex: 1 1 auto;
    min-width: 160px;
    border: 1px solid #000000;
    background: #ffffff;
    color: #000000;
    font-family: var(--bis-font);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.85rem 1.5rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.bis-product__add-btn:hover {
    background: #000000;
    color: #ffffff;
}

.bis-product__out {
    font-size: 0.875rem;
    font-weight: 500;
    color: #666666;
}

.bis-product__desc {
    font-size: 0.8125rem;
    line-height: 1.85;
    color: #000000;
}

.bis-product__desc p {
    margin: 0 0 1rem;
}

.bis-product__wish {
    margin-left: auto;
    border: none;
    background: none;
    padding: 0.35rem;
    color: #999999;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
}

.bis-product__wish.is-active {
    color: #000000;
}

.bis-product__head-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

/* Reviews */
.bis-product__reviews {
    max-width: 1600px;
    margin: clamp(3rem, 6vw, 5rem) auto 0;
    padding-top: 2.5rem;
    border-top: 1px solid #dddddd;
}

.bis-product__reviews-title {
    margin: 0 0 1.5rem;
    font-family: var(--bis-serif);
    font-size: 1.5rem;
    font-weight: 500;
    text-transform: lowercase;
    color: #000000;
}

.bis-product__review {
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid #eeeeee;
}

.bis-product__review-stars {
    color: #000000;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
}

.bis-product__review-meta {
    font-size: 0.75rem;
    color: #666666;
    margin-left: 0.5rem;
}

.bis-product__review-form label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #000000;
}

.bis-product__review-form select,
.bis-product__review-form textarea {
    width: 100%;
    max-width: 480px;
    border: 1px solid #cccccc;
    background: #ffffff;
    padding: 0.5rem 0.65rem;
    font-family: var(--bis-font);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.bis-product__review-submit {
    border: 1px solid #000000;
    background: #000000;
    color: #ffffff;
    font-family: var(--bis-font);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.65rem 1.25rem;
    cursor: pointer;
}

@media (max-width: 991px) {
    .bis-product__inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .bis-product__info {
        max-width: none;
    }

    .bis-product__gallery-slide {
        padding: 0 2.75rem;
    }
}

@media (max-width: 575px) {
    .bis-product__buy-row {
        flex-direction: column;
    }

    .bis-product__add-btn {
        width: 100%;
    }
}