/* =========================================================
   GL82 PRODUCT PAGE
   ========================================================= */

.gl82-page {
    color: #222;
}

.gl82-page img {
    max-width: 100%;
    height: auto;
}


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

.gl82-hero {
    padding: 32px 0 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f6f8f6 100%);
}

.gl82-product-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr);
    gap: 28px;
    align-items: start;
}

.gl82-gallery {
    min-width: 0;
}

.gl82-main-image {
    width: 100%;
    height: 315px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid #e2e2e2;
    border-radius: 8px;
    overflow: hidden;
}

.gl82-main-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gl82-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.gl82-thumbnail {
    width: 100%;
    height: 78px;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid #dddddd;
    border-radius: 6px;
    cursor: pointer;
}

.gl82-thumbnail img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gl82-thumbnail:hover {
    border-color: #1f6842;
}

.gl82-product-info {
    padding-top: 8px;
}

.gl82-product-info .hero-subtitle {
    display: block;
    margin-bottom: 10px;
    color: #4b8e39;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .14em;
}

.gl82-product-info h1 {
    margin: 0 0 12px;
    color: #1f6842;
    font-size: clamp(42px, 5vw, 64px);
    line-height: 1;
}

.gl82-product-info h2 {
    margin: 0 0 18px;
    color: #1d1d1d;
    font-size: 18px !important;
    line-height: 1.2;
    white-space: nowrap;
}

.gl82-product-info .product-lead {
    max-width: 620px;
    margin: 0 0 22px;
    color: #555;
    font-size: 16px;
    line-height: 1.65;
}

.gl82-key-features-title {
    margin: 0 0 12px;
    color: #1f6842;
    font-size: 22px;
}

.gl82-key-features {
    margin: 0 0 24px;
    padding-left: 20px;
    color: #555;
}

.gl82-key-features li {
    margin-bottom: 7px;
    line-height: 1.45;
}

.gl82-page .hero-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.gl82-page .hero-buttons .btn-primary {
    display: inline-block;
    padding: 13px 24px;
    background: #1f6842;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
}

.gl82-page .hero-buttons .btn-primary:hover {
    background: #174d30;
}


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

.gl82-product-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 24px;
    padding: 18px 0;
    border-bottom: 1px solid #d9d9d9;
    overflow-x: auto;
}

.gl82-product-nav a {
    flex: 0 0 auto;
    color: #173f2b;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.gl82-product-nav a:hover {
    color: #3ca51f;
}


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

.gl82-overview,
.gl82-design,
.gl82-coverage,
.gl82-controls,
.gl82-spectrum,
.gl82-dimensions,
.gl82-specifications,
.gl82-product-details,
.gl82-ppfd {
    padding: 40px 0;
}

.gl82-overview,
.gl82-coverage,
.gl82-spectrum,
.gl82-specifications,
.gl82-product-details {
    background: #ffffff;
}

.gl82-design,
.gl82-controls,
.gl82-dimensions,
.gl82-ppfd {
    background: #f6f8f6;
}

.gl82-page h2 {
    margin: 0 0 18px;
    color: #173d2a;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.1;
}

.gl82-page .section-intro {
    max-width: 760px;
    margin: 0 auto 30px;
    color: #666;
    font-size: 15px;
    line-height: 1.65;
    text-align: center;
}

.gl82-overview h2,
.gl82-design h2,
.gl82-coverage h2,
.gl82-controls h2,
.gl82-spectrum h2,
.gl82-dimensions h2,
.gl82-specifications h2,
.gl82-product-details h2,
.gl82-ppfd h2 {
    text-align: center;
}


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

.gl82-overview .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.gl82-overview .feature-card {
    padding: 22px;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}

.gl82-overview .feature-card h3 {
    margin: 0 0 10px;
    color: #1f5b3a;
    font-size: 19px;
}

.gl82-overview .feature-card p {
    margin: 0;
    color: #666;
    line-height: 1.6;
}


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

.gl82-image {
    margin-top: 28px;
    text-align: center;
}

.gl82-image img {
    display: block;
    width: 100%;
    max-width: 900px;
    height: auto;
    margin: 0 auto;
    object-fit: contain;
}


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

.gl82-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.gl82-detail-item {
    text-align: center;
}

.gl82-detail-item img {
    display: block;
    width: 100%;
    max-width: 450px;
    height: 210px;
    margin: 0 auto 16px;
    object-fit: contain;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}

.gl82-detail-item h3 {
    margin: 0 0 8px;
    color: #1f5b3a;
    font-size: 20px;
}

.gl82-detail-item p {
    max-width: 500px;
    margin: 0 auto;
    color: #666;
    line-height: 1.6;
}


/* =========================================================
   COVERAGE
   ========================================================= */

.gl82-coverage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 850px;
    margin: 0 auto;
}

.gl82-coverage-card {
    padding: 24px;
    background: #f6f8f6;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    text-align: center;
}

.gl82-coverage-card h3 {
    margin: 0 0 8px;
    color: #1f5b3a;
    font-size: 22px;
}

.gl82-coverage-card strong {
    display: block;
    margin-bottom: 10px;
    color: #222;
    font-size: 18px;
}

.gl82-coverage-card p {
    margin: 0;
    color: #666;
    line-height: 1.6;
}


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

.gl82-control-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gl82-control-item {
    padding: 22px;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    text-align: center;
}

.gl82-control-item .gl82-image {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 180px;
    margin: 0 0 18px;
}

.gl82-control-item .gl82-image img {
    max-width: 100%;
    max-height: 170px;
    width: auto;
    object-fit: contain;
}

.gl82-control-item h3 {
    margin: 0 0 8px;
    color: #1f5b3a;
    font-size: 20px;
}

.gl82-control-item p {
    margin: 0;
    color: #666;
    line-height: 1.6;
}


/* =====================================================
   SPECTRUM — STANDARD + CUSTOM
   ===================================================== */

.gl82-spectrum-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 50px;
    align-items: start;
}

.gl82-standard-spectrum,
.gl82-custom-spectrums {
    min-width: 0;
}

.gl82-standard-spectrum h2,
.gl82-custom-spectrums h2 {
    margin-bottom: 12px;
}

.gl82-standard-spectrum .section-intro,
.gl82-custom-spectrums > p {
    margin-bottom: 25px;
}

.gl82-standard-spectrum .gl82-spectrum-placeholder {
    width: 100%;
    text-align: center;
}

.gl82-standard-spectrum .gl82-spectrum-placeholder img {
    display: block;
    width: 100%;
    max-width: 650px;
    height: auto;
    margin: 0 auto;
}

.gl82-custom-spectrums .hero-spectrum-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.gl82-custom-spectrums .hero-spectrum-card {
    text-align: center;
}

.gl82-custom-spectrums .hero-spectrum-image img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0 auto;
}

.gl82-custom-spectrums .hero-spectrum-card h3 {
    margin: 8px 0 0;
    font-size: 15px;
}


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

.gl82-dimension-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 850px;
    margin: 0 auto;
}

.gl82-dimension-card {
    padding: 24px;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    text-align: center;
}

.gl82-dimension-card h3 {
    margin: 0 0 8px;
    color: #1f5b3a;
    font-size: 20px;
}

.gl82-dimension-card strong {
    display: block;
    margin-bottom: 6px;
    color: #222;
    font-size: 18px;
}

.gl82-dimension-card p {
    margin: 0;
    color: #666;
}

.gl82-dimensions .gl82-image img {
    max-width: 1000px;
    padding: 8px;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}


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

.gl82-spec-table {
    max-width: 900px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    overflow: hidden;
}

.gl82-spec-row {
    display: grid;
    grid-template-columns: 34% 66%;
    border-bottom: 1px solid #dfe6e2;
}

.gl82-spec-row:last-child {
    border-bottom: 0;
}

.gl82-spec-row strong,
.gl82-spec-row span {
    padding: 13px 18px;
}

.gl82-spec-row strong {
    background: #f1f5f2;
    color: #173d2a;
}

.gl82-spec-row span {
    color: #444;
}


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

.gl82-detail-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 950px;
    margin: 0 auto;
}

.gl82-detail-gallery .gl82-detail-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 240px;
    padding: 18px;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
}

.gl82-detail-gallery img {
    display: block;
    max-width: 100%;
    max-height: 240px;
    width: auto;
    object-fit: contain;
}


/* =========================================================
   PPFD
   ========================================================= */

.gl82-ppfd-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.gl82-ppfd-item {
    padding: 20px;
    background: #ffffff;
    border: 1px solid #dfe6e2;
    border-radius: 10px;
    text-align: center;
}

.gl82-ppfd-item h3 {
    margin: 0 0 6px;
    color: #1f5b3a;
    font-size: 20px;
}

.gl82-ppfd-item > span {
    display: block;
    margin-bottom: 15px;
    color: #777;
    font-size: 14px;
}

.gl82-ppfd-item img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0 auto;
    object-fit: contain;
}

.gl82-ppfd-method {
    max-width: 760px;
    margin: 24px auto 0;
    color: #777;
    font-size: 14px;
    line-height: 1.6;
    text-align: center;
}


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

.gl82-page .product-cta {
    padding: 60px 0;
    background: #173d2a;
    color: #ffffff;
    text-align: center;
}

.gl82-page .product-cta h2 {
    color: #ffffff;
}

.gl82-page .product-cta p {
    margin: 0 0 22px;
    color: #d7ddd9;
    font-size: 17px;
}

.gl82-page .product-cta .btn-primary {
    display: inline-block;
    padding: 13px 24px;
    background: #ffffff;
    color: #173d2a;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
}


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

@media (max-width: 900px) {

    .gl82-product-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .gl82-main-image {
        height: 340px;
    }

    .gl82-overview .feature-grid,
    .gl82-control-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gl82-detail-grid,
    .gl82-detail-gallery,
    .gl82-coverage-grid,
    .gl82-dimension-grid,
    .gl82-ppfd-grid {
        grid-template-columns: 1fr;
    }

    .gl82-product-nav {
        justify-content: flex-start;
        overflow-x: auto;
    }
        .gl82-spectrum-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

}


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

@media (max-width: 600px) {

    .gl82-overview,
    .gl82-design,
    .gl82-coverage,
    .gl82-controls,
    .gl82-spectrum,
    .gl82-dimensions,
    .gl82-specifications,
    .gl82-product-details,
    .gl82-ppfd {
        padding: 45px 0;
    }

    .gl82-hero {
        padding-top: 32px;
    }

    .gl82-main-image {
        height: 300px;
    }

    .gl82-thumbnails {
        grid-template-columns: repeat(2, 1fr);
    }

    .gl82-product-info h1 {
        font-size: 52px;
    }

    .gl82-product-info h2 {
        white-space: normal;
    }

    .gl82-overview .feature-grid,
    .gl82-control-grid {
        grid-template-columns: 1fr;
    }

    .gl82-spec-row {
        grid-template-columns: 1fr;
    }

    .gl82-spec-row strong {
        padding-bottom: 7px;
    }

    .gl82-spec-row span {
        padding-top: 7px;
    }
        .gl82-custom-spectrums .hero-spectrum-grid {
        grid-template-columns: 1fr;
    }

}