/* =========================================================
   ZENTRUM TECHNO SOLUTIONS
   Product Detail Pages
   ========================================================= */


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

.product-detail-hero {
    padding: 105px 0;
    background: var(--zentrum-white);
}

.product-detail-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(500px, 1.1fr);
    gap: 85px;
    align-items: center;
}

.product-detail-hero-content h1 {
    margin: 0 0 26px;
    color: var(--zentrum-blue-dark);
    font-size: clamp(44px, 4.4vw, 64px);
    font-weight: 700;
    line-height: 1.06;
    letter-spacing: -0.035em;
}

.product-detail-hero-content h1 span {
    display: block;
    color: var(--zentrum-blue);
}

.product-detail-hero-lead {
    max-width: 650px;
    margin: 0;
    color: var(--zentrum-steel);
    font-size: 18px;
    line-height: 1.75;
}

.product-detail-actions {
    margin-top: 34px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 26px;
}

.product-detail-text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--zentrum-blue);
    font-size: 13px;
    font-weight: 700;
}

.product-detail-text-link span {
    color: var(--zentrum-red);
    transition: transform var(--transition-fast);
}

.product-detail-text-link:hover span {
    transform: translateX(4px);
}


/* HERO VISUAL */

.product-detail-hero-visual,
.product-detail-automation-visual {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #e8edf0, #dce3e7);
}

.product-detail-hero-visual {
    min-height: 420px;
}

.product-detail-hero-visual::before,
.product-detail-automation-visual::before {
    content: "";
    position: absolute;
    inset: 0;

    background-image:
        linear-gradient(
            rgba(0, 85, 140, 0.07) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(0, 85, 140, 0.07) 1px,
            transparent 1px
        );

    background-size: 48px 48px;
}

.product-detail-hero-visual::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 95px;
    height: 5px;
    background: var(--zentrum-red);
}

.product-detail-placeholder {
    position: absolute;
    inset: 0;
    z-index: 1;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    gap: 10px;
    padding: 30px;
    text-align: center;
}

.product-detail-placeholder span {
    color: var(--zentrum-blue);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.product-detail-placeholder p {
    margin: 0;
    color: var(--zentrum-steel);
    font-size: 13px;
}


/* =========================================================
   PRODUCT OVERVIEW
   ========================================================= */

.product-overview {
    padding: 105px 0;
    background: var(--zentrum-light);
}

.product-overview-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    gap: 110px;
    align-items: start;
}

.product-overview h2,
.product-section-heading h2,
.product-engineering-heading h2,
.product-detail-automation-content h2,
.product-detail-cta h2 {
    margin: 0;
    color: var(--zentrum-blue-dark);
    font-size: clamp(36px, 3.5vw, 50px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.product-overview h2 span,
.product-section-heading h2 span,
.product-engineering-heading h2 span,
.product-detail-automation-content h2 span,
.product-detail-cta h2 span {
    display: block;
    color: var(--zentrum-blue);
}

.product-overview-copy {
    max-width: 700px;
}

.product-overview-copy p {
    margin: 0 0 20px;
    color: var(--zentrum-steel);
    font-size: 16px;
    line-height: 1.8;
}

.product-overview-copy p:last-child {
    margin-bottom: 0;
}


/* =========================================================
   SECTION HEADINGS
   ========================================================= */

.product-section-heading {
    max-width: 800px;
}

.product-section-heading > p:last-child {
    max-width: 720px;
    margin: 22px 0 0;
    color: var(--zentrum-steel);
    font-size: 16px;
    line-height: 1.75;
}


/* =========================================================
   APPLICATIONS
   ========================================================= */

.product-applications {
    padding: 110px 0;
    background: var(--zentrum-white);
}

.application-grid {
    margin-top: 58px;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.application-card {
    position: relative;
    min-height: 255px;

    padding: 32px;

    background: var(--zentrum-light);
    border-top: 3px solid var(--zentrum-blue);
}

.application-card::before {
    content: "";
    display: block;
    width: 34px;
    height: 3px;
    margin-bottom: 34px;
    background: var(--zentrum-red);
}

.application-card h3 {
    margin: 0 0 14px;

    color: var(--zentrum-blue-dark);
    font-size: 21px;
    font-weight: 700;
    line-height: 1.3;
}

.application-card p {
    margin: 0;

    color: var(--zentrum-steel);
    font-size: 14px;
    line-height: 1.7;
}


/* =========================================================
   CUSTOM ENGINEERING
   ========================================================= */

.product-engineering {
    padding: 110px 0;
    background: var(--zentrum-blue-dark);
}

.product-engineering-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    gap: 105px;
    align-items: start;
}

.product-engineering .inner-eyebrow {
    color: #9bc4dc;
}

.product-engineering-heading h2 {
    color: var(--zentrum-white);
}

.product-engineering-heading h2 span {
    color: #9bc4dc;
}

.product-engineering-heading > p:last-child {
    max-width: 620px;
    margin: 28px 0 0;

    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    line-height: 1.8;
}

.engineering-considerations {
    border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.engineering-item {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 22px;

    padding: 25px 0;

    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.engineering-item > span {
    padding-top: 3px;

    color: #9bc4dc;
    font-size: 12px;
    font-weight: 700;
}

.engineering-item h3 {
    margin: 0 0 7px;

    color: var(--zentrum-white);
    font-size: 18px;
    font-weight: 700;
}

.engineering-item p {
    margin: 0;

    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    line-height: 1.65;
}


/* =========================================================
   AUTOMATION INTEGRATION
   ========================================================= */

.product-detail-automation {
    padding: 110px 0;
    background: var(--zentrum-white);
}

.product-detail-automation-grid {
    display: grid;
    grid-template-columns: minmax(460px, 1fr) minmax(0, 0.9fr);
    gap: 90px;
    align-items: center;
}

.product-detail-automation-visual {
    min-height: 410px;
}

.product-detail-automation-content > p:not(.inner-eyebrow) {
    margin: 0 0 20px;

    color: var(--zentrum-steel);
    font-size: 16px;
    line-height: 1.8;
}

.product-detail-automation-content h2 {
    margin-bottom: 25px;
}

.product-detail-automation-content .product-detail-text-link {
    margin-top: 10px;
}


/* =========================================================
   ENGINEERING APPROACH
   ========================================================= */

.product-detail-approach {
    padding: 110px 0;
    background: var(--zentrum-light);
}

.product-approach-flow {
    margin-top: 60px;

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

    border-top: 1px solid rgba(105, 115, 125, 0.3);
    border-bottom: 1px solid rgba(105, 115, 125, 0.3);
}

.approach-step {
    position: relative;

    min-height: 225px;
    padding: 30px;

    border-right: 1px solid rgba(105, 115, 125, 0.3);
}

.approach-step:last-child {
    border-right: none;
}

.approach-step > span {
    display: block;
    margin-bottom: 45px;

    color: var(--zentrum-red);
    font-size: 12px;
    font-weight: 700;
}

.approach-step h3 {
    margin: 0 0 10px;

    color: var(--zentrum-blue-dark);
    font-size: 21px;
    font-weight: 700;
}

.approach-step p {
    margin: 0;

    color: var(--zentrum-steel);
    font-size: 14px;
    line-height: 1.65;
}


/* =========================================================
   RELATED PRODUCTS
   ========================================================= */

.related-products {
    padding: 110px 0;
    background: var(--zentrum-white);
}

.related-product-grid {
    margin-top: 58px;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.related-product-card {
    min-height: 210px;

    display: flex;
    flex-direction: column;

    padding: 30px;

    background: var(--zentrum-light);
    border: 1px solid rgba(105, 115, 125, 0.2);

    transition:
        transform var(--transition-standard),
        box-shadow var(--transition-standard),
        border-color var(--transition-standard);
}

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

    border-color: rgba(0, 85, 140, 0.35);

    box-shadow:
        0 18px 40px rgba(37, 42, 48, 0.08);
}

.related-product-card > span {
    margin-bottom: 36px;

    color: var(--zentrum-blue);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.15em;
}

.related-product-card h3 {
    margin: 0 0 25px;

    color: var(--zentrum-blue-dark);
    font-size: 23px;
    font-weight: 700;
}

.related-product-card p {
    margin: auto 0 0;

    color: var(--zentrum-blue);
    font-size: 13px;
    font-weight: 700;
}

.related-product-card strong {
    margin-left: 6px;
    color: var(--zentrum-red);
}


/* =========================================================
   FINAL CTA
   ========================================================= */

.product-detail-cta {
    padding: 90px 0;
    background: var(--zentrum-charcoal);
}

.product-detail-cta-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.65fr);
    gap: 100px;
    align-items: center;
}

.product-detail-cta .inner-eyebrow {
    color: #9bc4dc;
}

.product-detail-cta h2 {
    color: var(--zentrum-white);
}

.product-detail-cta h2 span {
    color: #9bc4dc;
}

.product-detail-cta-action p {
    margin: 0 0 25px;

    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.75;
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 1000px) {

    .product-detail-hero,
    .product-overview,
    .product-applications,
    .product-engineering,
    .product-detail-automation,
    .product-detail-approach,
    .related-products {
        padding: 90px 0;
    }

    .product-detail-hero-grid,
    .product-overview-grid,
    .product-engineering-grid,
    .product-detail-automation-grid,
    .product-detail-cta-grid {
        grid-template-columns: 1fr;
        gap: 45px;
    }

    .product-detail-hero-visual {
        min-height: 380px;
    }

    .product-overview-grid,
    .product-engineering-grid {
        gap: 40px;
    }

    .application-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .application-card:last-child {
        grid-column: span 2;
    }

    .product-detail-automation-visual {
        min-height: 350px;
    }

    .product-approach-flow {
        grid-template-columns: repeat(2, 1fr);
    }

    .approach-step:nth-child(2) {
        border-right: none;
    }

    .approach-step:nth-child(-n + 2) {
        border-bottom: 1px solid rgba(105, 115, 125, 0.3);
    }

    .related-product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-detail-cta {
        padding: 80px 0;
    }

}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 650px) {

    .product-detail-hero,
    .product-overview,
    .product-applications,
    .product-engineering,
    .product-detail-automation,
    .product-detail-approach,
    .related-products {
        padding: 70px 0;
    }

    .product-detail-hero-content h1 {
        font-size: 40px;
    }

    .product-detail-hero-lead {
        font-size: 16px;
    }

    .product-detail-actions {
        align-items: flex-start;
        flex-direction: column;
        gap: 20px;
    }

    .product-detail-hero-visual {
        min-height: 285px;
    }

    .application-grid,
    .related-product-grid {
        grid-template-columns: 1fr;
    }

    .application-card:last-child {
        grid-column: auto;
    }

    .application-card {
        min-height: auto;
        padding: 27px 24px;
    }

    .product-engineering-grid {
        gap: 35px;
    }

    .engineering-item {
        grid-template-columns: 38px 1fr;
        gap: 14px;
    }

    .product-detail-automation-visual {
        min-height: 275px;
    }

    .product-approach-flow {
        grid-template-columns: 1fr;
    }

    .approach-step {
        min-height: auto;
        padding: 27px 24px;

        border-right: none;
        border-bottom: 1px solid rgba(105, 115, 125, 0.3);
    }

    .approach-step:nth-child(-n + 2) {
        border-bottom: 1px solid rgba(105, 115, 125, 0.3);
    }

    .approach-step:last-child {
        border-bottom: none;
    }

    .approach-step > span {
        margin-bottom: 28px;
    }

    .related-product-card {
        min-height: 180px;
        padding: 26px 24px;
    }

    .product-detail-cta {
        padding: 70px 0;
    }

    .product-detail-cta-grid {
        gap: 30px;
    }

}