/* =========================================================
   GLUCL PRODUCT PAGE
   Dedicated stylesheet — GLUCL ONLY
   ========================================================= */

.glucl-page {
    color: #222;
}

.glucl-page img {
    max-width: 100%;
    height: auto;
}


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

.glucl-hero {
    padding: 22px 0 0;
    background: linear-gradient(180deg, #fff 0%, #f6f8f6 100%);
}

.glucl-product-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr);
    gap: 20px;
    align-items: center;
}

.glucl-gallery {
    min-width: 0;
}

.glucl-main-image {
    width: 100%;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid #e2e7e3;
    border-radius: 8px;
    overflow: hidden;
}

.glucl-main-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}


/* =========================================================
   THUMBNAILS
   ========================================================= */

.glucl-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 7px;
    margin-top: 7px;
}

.glucl-thumbnail {
    display: block;
    width: 100%;
    height: 46px;
    padding: 3px;
    margin: 0;
    background: #fff;
    border: 1px solid #e1e5e2;
    border-radius: 4px;
    cursor: pointer;
}

.glucl-thumbnail img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.glucl-thumbnail:first-child {
    border: 2px solid #1f5d3a;
}

.glucl-thumbnail:hover,
.glucl-thumbnail:focus {
    border-color: #1f5d3a;
}


/* =========================================================
   PRODUCT INFORMATION
   ========================================================= */

.glucl-product-info {
    min-width: 0;
}

.glucl-product-info .hero-subtitle {
    display: block;
    margin-bottom: 4px;
    font-size: 10px;
    line-height: 1.3;
    letter-spacing: .12em;
    font-weight: 700;
    color: #222;
}

.glucl-product-info h1 {
    margin: 0 0 5px;
    font-size: clamp(34px, 3.7vw, 48px);
    line-height: .95;
    color: #1f5b3a;
}

.glucl-product-info h2 {
    margin: 0 0 10px;
    font-size: 17px !important;
    line-height: 1.2;
    white-space: nowrap;
    color: #1d1d1d;
}

.glucl-product-info .product-lead {
    max-width: 500px;
    margin: 0 0 11px;
    font-size: 15px;
    line-height: 1.55;
    color: #555;
}


/* =========================================================
   KEY SPECS
   ========================================================= */

.glucl-key-specs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 9px;
    max-width: 500px;
    margin: 0 0 11px;
}

.glucl-key-spec {
    padding: 10px 7px;
    background: #f6f8f6;
    border: 1px solid #dfe6e2;
    border-radius: 6px;
    text-align: center;
}

.glucl-key-spec strong {
    display: block;
    color: #1f5b3a;
    font-size: 18px;
    line-height: 1.1;
}

.glucl-key-spec span {
    display: block;
    margin-top: 3px;
    color: #666;
    font-size: 11px;
    line-height: 1.2;
}


/* =========================================================
   KEY FEATURES
   ========================================================= */

.glucl-key-features-title {
    margin: 0 0 5px;
    color: #1f5b3a;
    font-size: 18px;
}

.glucl-key-features {
    margin: 0 0 11px;
    padding-left: 21px;
    color: #555;
}

.glucl-key-features li {
    margin-bottom: 4px;
    font-size: 15px;
    line-height: 1.4;
}


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

.glucl-page .hero-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.glucl-page .hero-buttons .btn-primary {
    display: inline-block;
    padding: 10px 18px;
    background: #1f5b3a;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 600;
}

.glucl-page .hero-buttons .btn-primary:hover {
    background: #17452d;
}


/* =========================================================
   NAVIGATION
   ========================================================= */

.glucl-product-nav {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 0 0;
    border-bottom: 1px solid #d9d9d9;
}

.glucl-product-nav a {
    display: block;
    padding: 0 3px 8px;
    color: #173f2b;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.glucl-product-nav a:hover {
    color: #3ca51f;
    border-bottom: 3px solid #3ca51f;
}


/* =========================================================
   GENERAL SECTIONS
   ========================================================= */

.glucl-overview,
.glucl-design,
.glucl-lens,
.glucl-controls,
.glucl-spectrum,
.glucl-dimensions,
.glucl-specifications,
.glucl-product-details {
    padding: 40px 0;
}

.glucl-overview,
.glucl-lens,
.glucl-spectrum,
.glucl-specifications,
.glucl-product-details {
    background: #fff;
}

.glucl-design,
.glucl-controls,
.glucl-dimensions {
    background: #f6f8f6;
}

.glucl-page h2 {
    margin: 0 0 10px;
    font-size: clamp(25px, 2.7vw, 35px);
    line-height: 1.1;
    color: #173d2a;
}

.glucl-page .section-intro {
    max-width: 780px;
    margin: 0 auto 16px;
    text-align: center;
    font-size: 15px;
    line-height: 1.55;
    color: #666;
}

.glucl-overview h2,
.glucl-design h2,
.glucl-lens h2,
.glucl-controls h2,
.glucl-spectrum h2,
.glucl-dimensions h2,
.glucl-specifications h2,
.glucl-product-details h2 {
    text-align: center;
}


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

.glucl-overview .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.glucl-overview .feature-card {
    padding: 16px;
    background: #fff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}

.glucl-overview .feature-card h3 {
    margin: 0 0 5px;
    color: #1f5b3a;
    font-size: 18px;
}

.glucl-overview .feature-card p {
    margin: 0;
    font-size: 14px;
    color: #666;
    line-height: 1.45;
}


/* =========================================================
   GENERAL PRODUCT IMAGES
   ========================================================= */

.glucl-image {
    width: 100%;
    margin: 14px auto 0;
    text-align: center;
}

.glucl-image img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 430px;
    margin: 0 auto;
    object-fit: contain;
}


/* =========================================================
   DETAIL GRID
   ========================================================= */

.glucl-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 16px;
}

.glucl-detail-item {
    text-align: center;
}

.glucl-detail-item img {
    display: block;
    width: 100%;
    max-width: 440px;
    height: 165px;
    margin: 0 auto 8px;
    object-fit: contain;
    background: #fff;
    border: 1px solid #dfe6e2;
    border-radius: 8px;
}

.glucl-detail-item h3 {
    margin: 0 0 5px;
    color: #1f5b3a;
    font-size: 18px;
}

.glucl-detail-item p {
    max-width: 440px;
    margin: 0 auto;
    font-size: 14px;
    color: #666;
    line-height: 1.45;
}


/* =========================================================
   AIRFLOW & LIGHT DISTRIBUTION
   ========================================================= */

.glucl-lens .glucl-detail-grid {
    margin-top: 16px;
}

.glucl-lens .glucl-detail-item {
    padding: 15px;
    background: #f6f8f6;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}

.glucl-lens .glucl-detail-item img {
    height: 140px;
    margin-bottom: 8px;
}


/* =========================================================
   CONTROLS
   ========================================================= */

.glucl-control-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.glucl-control-item {
    padding: 15px;
    background: #fff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    text-align: center;
}

.glucl-control-item .glucl-image {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 130px;
    margin: 0 0 10px;
}

.glucl-control-item .glucl-image img {
    max-width: 90%;
    max-height: 120px;
    width: auto;
    height: auto;
}

.glucl-control-item h3 {
    margin: 0 0 5px;
    color: #1f5b3a;
    font-size: 18px;
}

.glucl-control-item p {
    margin: 0;
    font-size: 14px;
    color: #666;
    line-height: 1.45;
}


/* =========================================================
   SPECTRUM
   ========================================================= */

.glucl-spectrum {
    padding: 34px 0;
}

.glucl-spectrum-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 42px;
    align-items: start;
}

.glucl-standard-spectrum,
.glucl-custom-spectrums {
    min-width: 0;
}

.glucl-standard-spectrum h2,
.glucl-custom-spectrums h2 {
    margin: 0 0 9px;
    text-align: center;
}

.glucl-standard-spectrum .section-intro,
.glucl-custom-spectrums > p {
    margin-bottom: 16px;
}

.glucl-standard-spectrum .glucl-spectrum-placeholder {
    width: 100%;
    max-width: 620px;
    margin: 12px auto 0;
    text-align: center;
}

.glucl-standard-spectrum .glucl-spectrum-placeholder img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 280px;
    height: auto;
    margin: 0 auto;
    object-fit: contain;
}


/* =========================================================
   CUSTOM SPECTRUMS
   ========================================================= */

.glucl-custom-spectrums .hero-spectrum-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 15px;
}

.glucl-custom-spectrums .hero-spectrum-card {
    text-align: center;
}

.glucl-custom-spectrums .hero-spectrum-image img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0 auto;
}

.glucl-custom-spectrums .hero-spectrum-card h3 {
    margin: 7px 0 0;
    font-size: 14px;
    line-height: 1.2;
}


/* =========================================================
   DIMENSIONS
   ========================================================= */

.glucl-dimension-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 760px;
    margin: 0 auto;
}

.glucl-dimension-card {
    padding: 15px;
    background: #fff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    text-align: center;
}

.glucl-dimension-card h3 {
    margin: 0 0 5px;
    color: #1f5b3a;
    font-size: 18px;
}

.glucl-dimension-card p {
    margin: 3px 0;
    font-size: 14px;
    color: #666;
}

.glucl-dimensions .glucl-image img {
    max-width: 760px;
    background: #fff;
    border: 1px solid #dfe6e2;
    border-radius: 8px;
}


/* =========================================================
   ADJUSTABLE STANDS
   ========================================================= */

.glucl-stand-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 760px;
    margin: 16px auto 0;
}

.glucl-stand-item {
    text-align: center;
}

.glucl-stand-item img {
    display: block;
    width: 100%;
    max-width: 230px;
    height: 140px;
    margin: 0 auto 7px;
    object-fit: contain;
}

.glucl-stand-item h3 {
    margin: 0;
    color: #1f5b3a;
    font-size: 14px;
}


/* =========================================================
   SPECIFICATIONS
   ========================================================= */

.glucl-spec-table {
    max-width: 760px;
    margin: 0 auto;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.glucl-spec-row {
    display: grid;
    grid-template-columns: 34% 66%;
    border-bottom: 1px solid #dfe6e2;
}

.glucl-spec-row:last-child {
    border-bottom: 0;
}

.glucl-spec-row strong,
.glucl-spec-row span {
    padding: 10px 12px;
    font-size: 14px;
}

.glucl-spec-row strong {
    background: #f1f5f2;
    color: #173d2a;
}

.glucl-spec-row span {
    color: #444;
}


/* =========================================================
   PRODUCT DETAILS
   ========================================================= */

.glucl-detail-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    max-width: 760px;
    margin: 0 auto;
}

.glucl-detail-gallery .glucl-detail-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 165px;
    padding: 9px;
    background: #fff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}

.glucl-detail-gallery img {
    display: block;
    max-width: 100%;
    max-height: 165px;
    width: auto;
    object-fit: contain;
}


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

.glucl-page .product-cta {
    padding: 36px 0;
    background: #173d2a;
    color: #fff;
    text-align: center;
}

.glucl-page .product-cta h2 {
    color: #fff;
}

.glucl-page .product-cta p {
    margin: 0 0 11px;
    color: #d7ddd9;
    font-size: 14px;
}

.glucl-page .product-cta .btn-primary {
    display: inline-block;
    padding: 10px 18px;
    background: #fff;
    color: #173d2a;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
}


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

@media (max-width: 900px) {

    .glucl-product-layout {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .glucl-main-image {
        height: 235px;
    }

    .glucl-overview .feature-grid,
    .glucl-control-grid {
        grid-template-columns: 1fr;
    }

    .glucl-detail-grid,
    .glucl-detail-gallery,
    .glucl-dimension-grid {
        grid-template-columns: 1fr;
    }

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

    .glucl-product-nav {
        overflow-x: auto;
        justify-content: flex-start;
    }

    .glucl-spectrum-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }

}


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

@media (max-width: 600px) {

    .glucl-overview,
    .glucl-design,
    .glucl-lens,
    .glucl-controls,
    .glucl-spectrum,
    .glucl-dimensions,
    .glucl-specifications,
    .glucl-product-details {
        padding: 32px 0;
    }

    .glucl-hero {
        padding-top: 17px;
    }

    .glucl-main-image {
        height: 225px;
    }

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

    .glucl-product-info h1 {
        font-size: 35px;
    }

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

    .glucl-spec-row {
        grid-template-columns: 1fr;
    }

    .glucl-spec-row strong {
        padding-bottom: 4px;
    }

    .glucl-spec-row span {
        padding-top: 4px;
    }

    .glucl-stand-grid {
        grid-template-columns: 1fr;
    }

    .glucl-spectrum {
        padding: 27px 0;
    }

    .glucl-spectrum-placeholder {
        max-width: 100%;
    }

    .glucl-spectrum-placeholder img {
        max-height: 220px;
    }

    .glucl-custom-spectrums .hero-spectrum-grid {
        grid-template-columns: 1fr;
    }

}


/* =========================================================
   VENTILATION / DESIGN — FINAL IMAGE SIZE
   ========================================================= */

.glucl-design .glucl-image {
    margin: 11px auto 0;
}

.glucl-design .glucl-image img {
    max-width: 100%;
    max-height: 205px;
    width: auto;
    height: auto;
}

.glucl-design .glucl-detail-grid {
    margin-top: 11px;
    gap: 11px;
}

.glucl-design .glucl-detail-grid .glucl-detail-item:first-child img {
    display: block;
    width: auto;
    max-width: 100%;
    height: 180;
    max-height: 180;
    margin: 0 auto;
    object-fit: contain;
}

.glucl-design .glucl-detail-item {
    padding: 10px;
}


/* =========================================================
   AIRFLOW & LIGHT PATH — FINAL IMAGE SIZE
   ========================================================= */

.glucl-lens .glucl-image {
    margin: 9px auto 0;
}

.glucl-lens .glucl-image img {
    max-height: 165px;
    width: auto;
    height: auto;
}

.glucl-lens .glucl-detail-grid {
    margin-top: 9px;
    gap: 9px;
}

.glucl-lens .glucl-detail-item {
    padding: 10px;
}

.glucl-lens .glucl-detail-item img {
    height: 105px;
    max-height: 105px;
    margin-bottom: 6px;
}


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

.glucl-design h2,
.glucl-lens h2 {
    margin-bottom: 7px;
}

.glucl-design .section-intro,
.glucl-lens .section-intro {
    margin-bottom: 9px;
}


/* =========================================================
   POWER & CONTROLS
   ========================================================= */

.glucl-control-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 13px;
}

.glucl-control-item {
    padding: 12px;
    text-align: center;
}

.glucl-control-item .glucl-image {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    margin: 0 0 9px;
}

.glucl-control-item .glucl-image img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 105px;
    object-fit: contain;
}

.glucl-control-item h3 {
    margin: 0 0 5px;
    color: #1f5b3a;
    font-size: 17px;
    line-height: 1.15;
}

.glucl-control-item p {
    margin: 0;
    font-size: 13px;
    line-height: 1.4;
    color: #666;
}

.glucl-controls {
    padding: 38px 0;
}

.glucl-controls h2 {
    margin-bottom: 8px;
}

.glucl-controls .section-intro {
    margin-bottom: 13px;
}


/* =========================================================
   SPECTRUM
   ========================================================= */

.glucl-spectrum {
    padding: 32px 0;
}

.glucl-spectrum-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
}

.glucl-standard-spectrum,
.glucl-custom-spectrums {
    min-width: 0;
}

.glucl-standard-spectrum h2,
.glucl-custom-spectrums h2 {
    margin: 0 0 9px;
    text-align: center;
}

.glucl-standard-spectrum .section-intro,
.glucl-custom-spectrums > p {
    margin-bottom: 15px;
}

.glucl-standard-spectrum .glucl-spectrum-placeholder {
    width: 100%;
    max-width: 620px;
    margin: 11px auto 0;
    text-align: center;
}

.glucl-standard-spectrum .glucl-spectrum-placeholder img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 250px;
    height: auto;
    margin: 0 auto;
    object-fit: contain;
}

.glucl-custom-spectrums .hero-spectrum-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
}

.glucl-custom-spectrums .hero-spectrum-card {
    text-align: center;
}

.glucl-custom-spectrums .hero-spectrum-image img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0 auto;
}

.glucl-custom-spectrums .hero-spectrum-card h3 {
    margin: 6px 0 0;
    font-size: 14px;
    line-height: 1.2;
}


/* =========================================================
   MOBILE IMAGE SIZING
   ========================================================= */

@media (max-width: 900px) {

    .glucl-design .glucl-image img {
        max-height: 185px;
    }

    .glucl-lens .glucl-image img {
        max-height: 145px;
    }

}


@media (max-width: 600px) {

    .glucl-design .glucl-image img {
        max-height: 155px;
    }

    .glucl-design .glucl-detail-item img {
        height: 95px;
        max-height: 95px;
    }

    .glucl-lens .glucl-image img {
        max-height: 120px;
    }

    .glucl-lens .glucl-detail-item img {
        height: 85px;
        max-height: 85px;
    }

    .glucl-custom-spectrums .hero-spectrum-grid {
        grid-template-columns: 1fr;
    }

}