/* =========================================================
   CANEPULP — PREMIUM PRODUCT DETAIL
   B2B / EXPORT MANUFACTURING DESIGN SYSTEM
   ========================================================= */

:root {
    --pd-ink: #07382c;
    --pd-green: #07865a;
    --pd-green-dark: #056b49;

    --pd-text: #405d68;
    --pd-muted: #71827f;

    --pd-bg: #ffffff;
    --pd-line: rgba(7, 56, 44, 0.10);

    --pd-shadow-md: 0 20px 55px rgba(7, 56, 44, 0.085);

    --pd-radius-sm: 10px;
    --pd-radius-md: 18px;

    --pd-ease: cubic-bezier(.16, .84, .32, 1);
    --pd-section-space: var(--space-16);
}

/* =========================================================
   BASE
   ========================================================= */

.product-details-page {
    position: relative;
    overflow: hidden;
    padding: 0 0 2.5rem;
    color: var(--pd-ink);
    background:
        radial-gradient(
            circle at 8% 2%,
            rgba(15, 170, 104, .055),
            transparent 25rem
        ),
        var(--pd-bg);
    font-feature-settings: "liga" 1;
}

.product-details-page *,
.product-details-page *::before,
.product-details-page *::after {
    box-sizing: border-box;
}

.product-details-page img {
    display: block;
    max-width: 100%;
}

.product-details-page a {
    color: inherit;
}

.product-details-page a:focus-visible,
.product-details-page button:focus-visible {
    outline: 2px solid rgba(7, 134, 90, .45);
    outline-offset: 4px;
}

/* =========================================================
   BUTTONS
   ========================================================= */

.product-details-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;

    min-height: 48px;
    padding: .78rem 1.2rem;

    border: 1px solid transparent;
    border-radius: var(--pd-radius-sm);

    font-size: .88rem;
    font-weight: 750;
    line-height: 1;
    text-decoration: none;

    cursor: pointer;

    transition:
        transform .2s var(--pd-ease),
        box-shadow .2s var(--pd-ease),
        border-color .2s ease,
        background-color .2s ease;
}

.product-details-page .btn:hover {
    transform: translateY(-2px);
}

.product-details-page .btn--primary {
    color: #fff;
    background: linear-gradient(
        135deg,
        #0a9b68 0%,
        #06794f 100%
    );
    box-shadow: 0 10px 24px rgba(7, 134, 90, .17);
}

.product-details-page .btn--primary:hover {
    box-shadow: 0 14px 30px rgba(7, 134, 90, .23);
}

/* =========================================================
   HERO
   ========================================================= */

.product-details-page .page-hero {
    margin-bottom: 0;
    padding-bottom: 0;
}

.product-details-page .page-hero__content {
    max-width: 82rem;
    text-align: center;
}

.product-details-page .page-hero__title {
    max-width: 58rem;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* =========================================================
   VARIANTS SECTION — COMPACT, DYNAMIC LAYOUT
   ========================================================= */

.product-details-page .variants-section {
    margin: 0;
    padding: clamp(2.25rem, 4vw, 3.5rem) 0 0;
    background: transparent;
}

.product-details-page .variants-header {
    max-width: 50rem;
    margin: 0 auto 1.5rem;
    border: 0;
    background: transparent;
    box-shadow: none;
    text-align: center;
}

.product-details-page .variants-description {
    margin: 0;
    max-width: 52rem;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--pd-text);
}

/* Variant Selector Grid — Responsive Wrapping */
.product-details-page .variants-selector-wrapper {
    margin-bottom: 1.5rem;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.product-details-page .variants-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(8.75rem, 1fr));
    gap: 0.4rem;
    margin: 0 auto;
    width: min(100%, 42rem);
    padding: 0.4rem;
    border: 1px solid #e5e7eb;
    border-radius: 1rem;
    background: #f3f4f6;
}

.product-details-page .variant-btn {
    min-height: 2.45rem;
    padding: 0.45rem 0.7rem;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    background: transparent;
    color: var(--pd-text);
    font-size: 0.875rem;
    font-weight: 650;
    line-height: 1.2;
    cursor: pointer;
    transition:
        color 0.2s ease,
        background-color 0.2s ease,
        border-color 0.2s ease;
    white-space: normal;
    text-align: center;
}

.product-details-page .variant-btn:hover {
    border-color: #e5e7eb;
    background: #ffffff;
    color: #064e3b;
}

.product-details-page .variant-btn.is-active {
    border-color: #ffffff;
    background: #ffffff;
    color: #064e3b;
    font-weight: 600;
    box-shadow: 0 3px 10px rgba(15, 23, 42, 0.08);
}

.product-details-page .variant-btn:focus-visible {
    outline: 2px solid var(--pd-green);
    outline-offset: 2px;
}

.product-details-page .selected-variant-image {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
    min-height: 0;
    height: auto;
    padding: 20px;
    border: 0;
    border-radius: 18px;
    background: #f8f8f6;
    box-shadow: 0 12px 28px rgba(7, 56, 44, 0.06);
    overflow: hidden;
}

.product-details-page .variant-image {
    display: block;
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    height: auto;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(7, 56, 44, 0.04);
    transition:
        opacity 0.3s ease,
        transform 0.3s ease;
}

.product-details-page .variant-image.is-changing {
    opacity: 0.1;
    transform: scale(0.95);
}

.product-details-page .selected-variant {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(1.5rem, 3vw, 2.25rem);
    align-items: start;
}

.product-details-page .selected-variant-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.product-details-page .variant-name {
    margin: 0;
    font-size: clamp(1.5rem, 2.2vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.015em;
    color: #0f5132;
    transition: opacity 0.3s ease;
}

.product-details-page .variant-name.is-changing {
    opacity: 0.1;
}

.product-details-page .variant-desc {
    margin: 0;
    max-width: 38rem;
    margin-top: 0.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--pd-text);
    transition: opacity 0.3s ease;
}

.product-details-page .variant-desc.is-changing {
    opacity: 0.1;
}

/* Specifications Grid — 2-Column Key-Value Table */
.product-details-page .variant-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1.25rem;
    margin-top: 1.25rem;
    padding: 0.25rem 0 0;
    border-top: 1px solid #e5e7eb;
}

.product-details-page .spec-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-height: 0;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(229, 231, 235, 0.85);
}

.product-details-page .spec-label {
    font-size: 0.68rem;
    font-weight: 750;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #4b5563;
}

.product-details-page .spec-value {
    font-size: 0.95rem;
    font-weight: 650;
    color: #064e3b;
}

.product-details-page .spec-row:nth-last-child(-n + 2) {
    border-bottom: 0;
}

.product-details-page .variant-oem-cta {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    max-width: none;
    margin-top: 1.5rem;
    padding: 0.65rem 1rem;
    border: 1px solid rgba(0, 120, 80, 0.15);
    border-radius: 0.75rem;
    background: #ffffff;
    box-shadow: 0 10px 35px rgba(15, 23, 42, 0.06);
    text-align: left;
}

.product-details-page .variant-oem-cta__icon {
    position: relative;
    flex: 0 0 2rem;
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(15, 81, 50, 0.22);
    border-radius: 50%;
    background: #f8faf9;
}

.product-details-page .variant-oem-cta__icon::before,
.product-details-page .variant-oem-cta__icon::after {
    position: absolute;
    border: 1px solid #0f5132;
    content: '';
}

.product-details-page .variant-oem-cta__icon::before {
    inset: 0.55rem 0.48rem 0.45rem;
    border-radius: 0.15rem;
}

.product-details-page .variant-oem-cta__icon::after {
    top: 0.42rem;
    right: 0.7rem;
    left: 0.7rem;
    height: 0.35rem;
    border-bottom: 0;
    border-radius: 50% 50% 0 0;
}

.product-details-page .variant-oem-cta__button {
    flex: 0 0 auto;
    min-height: 2.5rem;
    padding: 0.65rem 1rem;
    border: 1px solid transparent;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, #079b68, #06794f);
    box-shadow: 0 8px 18px rgba(7, 134, 90, 0.18);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.product-details-page .variant-oem-cta__button:hover,
.product-details-page .variant-oem-cta__button:focus-visible {
    color: #ffffff;
    background: #056b49;
    box-shadow: 0 10px 22px rgba(7, 134, 90, 0.24);
    transform: translateY(-1px);
}

.product-details-page .variant-oem-message {
    display: flex;
    flex: 1 1 auto;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.5rem;
    min-width: 0;
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.5;
    color: #64748b;
}

.product-details-page .variant-oem-message strong {
    color: #0f172a;
    font-weight: 700;
}

.product-details-page .variant-oem-message span {
    display: inline;
    color: #64748b;
}

/* Responsive — Tablet (max-width: 1100px) */
@media (max-width: 1100px) {
    .product-details-page .variants-selector {
        grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
        gap: 0.6rem;
    }

    .product-details-page .selected-variant {
        gap: 1.5rem;
    }

    .product-details-page .selected-variant-image {
        width: 100%;
        min-height: 0;
    }
}

/* Responsive — Mobile (max-width: 768px) */
@media (max-width: 768px) {
    .product-details-page .variants-selector {
        grid-template-columns: repeat(4, minmax(7rem, 1fr));
        gap: 0.35rem;
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .product-details-page .variants-selector::-webkit-scrollbar {
        display: none;
    }

    .product-details-page .variant-btn {
        min-height: 2.4rem;
        padding: 0.4rem 0.65rem;
        font-size: 0.8rem;
    }

    .product-details-page .selected-variant {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .product-details-page .selected-variant-image {
        width: 100%;
        height: auto;
    }

    .product-details-page .variant-specs {
        grid-template-columns: 1fr;
        gap: 0;
        padding-top: 0;
    }

    .product-details-page .spec-row,
    .product-details-page .spec-row:nth-child(even) {
        min-height: 0;
        padding: 0.75rem 0;
        border: 0;
        border-bottom: 1px solid rgba(229, 231, 235, 0.85);
    }

    .product-details-page .spec-icon {
        position: static;
    }

    .product-details-page .spec-row:last-child {
        border-bottom: 0;
    }

    .product-details-page .variant-oem-cta {
        flex-direction: column;
        align-items: center;
        margin-top: 1.5rem;
        gap: 0.6rem;
        padding: 0.75rem 0.75rem 0.85rem;
        text-align: center;
    }

    .product-details-page .variant-oem-cta__button {
        width: auto;
    }

    .product-details-page .variant-oem-message {
        flex-direction: column;
        gap: 0.2rem;
        text-align: center;
        align-items: center;
    }

    .product-details-page .variant-oem-message span {
        display: block;
    }
}

/* =========================================================
   FAQ
   ========================================================= */

.product-details-page .faq-section {
    margin: 1rem 0 0;
    padding: 2.75rem 0 2rem;
}

.product-details-page .faq-section__intro {
    margin-bottom: 2.5rem;
}

.product-details-page .faq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: flex-start;
    gap: 1.25rem;
    max-width: 1160px;
    margin: 0 auto;
    padding-bottom: 0;
}

.product-details-page .faq-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0;
}

.product-details-page .faq-card {
    min-width: 0;
}

@media (max-width: 767px) {
    .product-details-page .faq-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }

    .product-details-page .faq-column {
        display: block;
    }
}

/* =========================================================
   RELATED PRODUCTS
   ========================================================= */
.product-details-page .related-section {
    margin: 0;
    padding: 1.75rem 0 var(--pd-section-space);
}

.product-details-page .related-section .section-heading {
    margin: 0 auto 2rem;
    max-width: 62rem;
    text-align: center;
}

.product-details-page .related-section .section-heading__title {
    margin-bottom: 0.75rem;
    letter-spacing: -0.04em;
}

.product-details-page .related-section .section-heading__subtitle {
    margin: 0 auto;
    max-width: 52rem;
    text-align: center;
}

.product-details-page .related-grid {
    display: grid;

    grid-template-columns: repeat(4, minmax(0, 1fr));

    gap: 1rem;
}

.product-details-page .related-card {
    overflow: hidden;

    border: 1px solid var(--pd-line);
    border-radius: var(--pd-radius-md);

    background: #fff;
    transition:
        transform .22s var(--pd-ease),
        box-shadow .22s var(--pd-ease),
        border-color .22s ease;
}

.product-details-page .related-card:hover {
    transform: translateY(-4px);

    border-color: rgba(7,134,90,.16);

    box-shadow: var(--pd-shadow-md);
}

.product-details-page .related-card__link {
    display: flex;
    flex-direction: column;

    height: 100%;

    color: inherit;
    text-decoration: none;
}

.product-details-page .related-media {
    display: flex;
    align-items: center;
    justify-content: center;

    min-height: 190px;

    padding: 1rem;

    background:
        linear-gradient(
            145deg,
            #fff,
            #f0f8f3
        );
}

.product-details-page .related-image {
    width: 100%;
    max-height: 165px;

    object-fit: contain;

    transition: transform .25s var(--pd-ease);
}

.product-details-page .related-card:hover .related-image {
    transform: scale(1.035);
}

.product-details-page .related-body {
    display: flex;
    flex: 1;
    flex-direction: column;

    padding: 1rem;
}

.product-details-page .related-title {
    margin: 0;

    color: var(--pd-ink);

    font-size: .96rem;
    font-weight: 740;
    line-height: 1.35;
}

.product-details-page .related-excerpt {
    margin: .45rem 0 0;

    color: var(--pd-text);

    font-size: .79rem;
    line-height: 1.6;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-details-page .related-cta {
    display: inline-flex;
    align-items: center;
    gap: .4rem;

    margin-top: auto;
    padding-top: .9rem;

    color: var(--pd-green-dark);

    font-size: .78rem;
    font-weight: 750;
}

.product-details-page .related-arrow {
    transition: transform .2s var(--pd-ease);
}

.product-details-page .related-card:hover .related-arrow {
    transform: translateX(4px);
}

@media (max-width: 620px) {
    .product-details-page .section-heading {
        margin-bottom: 1.4rem;
    }

    .product-details-page .section-heading__title {
        font-size: 2rem;
    }

    .product-details-page .section-heading__subtitle {
        font-size: .9rem;
        line-height: 1.7;
    }

    .product-details-page .related-grid {
        grid-template-columns: 1fr;
    }

    .product-details-page .related-media {
        min-height: 220px;
    }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    .product-details-page *,
    .product-details-page *::before,
    .product-details-page *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}