/* ==========================================================================
   Sameta Metal Pro - B2B Product Detail Page Stylesheet
   Modern, responsive, high-converting B2B industrial catalog design
   ========================================================================== */

/* Breadcrumbs Bar */
.product-breadcrumb-wrapper {
    background-color: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    padding: 0.85rem 0;
    font-size: 0.875rem;
}

.product-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    flex-wrap: wrap;
    max-width: 1496px;
    margin: 0 auto;
    padding: 0 2rem;
}

.product-breadcrumb a {
    color: #475569;
    font-weight: 500;
    transition: var(--transition, all 0.2s ease);
}

.product-breadcrumb a:hover {
    color: var(--primary-red, #ff0055);
}

.product-breadcrumb .separator {
    color: #94a3b8;
}

.product-breadcrumb .current {
    color: #0f172a;
    font-weight: 600;
}

/* Product Main Container */
.product-page-main {
    background-color: #ffffff;
    min-height: calc(100vh - var(--header-height, 80px));
}

.product-container {
    max-width: 1496px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Above-The-Fold Product Hero Stage */
.product-hero-section {
    padding: 2.5rem 0 3.5rem 0;
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
}

.product-stage-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3.5rem;
    align-items: start;
}

/* Gallery (Left Column) */
.product-gallery-sticky {
    position: sticky;
    top: calc(var(--header-height, 80px) + 20px);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-main-image-wrap {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    height: 500px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.product-main-image-wrap img.product-hero-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    background-color: #ffffff;
}

.product-main-image-wrap img.product-hero-img.active {
    opacity: 1;
    visibility: visible;
}

.gallery-watermark {
    position: absolute;
    bottom: 14px;
    right: 14px;
    height: 28px;
    opacity: 0.45;
    pointer-events: none;
    z-index: 5;
    transition: opacity 0.2s ease;
}

.product-main-image-wrap:hover .gallery-watermark {
    opacity: 0.75;
}

/* Thumbnails Track */
.product-thumbnails-track {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 4px 2px;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}

.product-thumbnails-track::-webkit-scrollbar {
    height: 6px;
}

.product-thumbnails-track::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.product-thumb-item {
    flex: 0 0 76px;
    height: 76px;
    background: #ffffff;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    transition: var(--transition, all 0.2s ease);
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.product-thumb-item:hover {
    border-color: #94a3b8;
    transform: translateY(-2px);
}

.product-thumb-item.active {
    border-color: var(--primary-red, #ff0055);
    box-shadow: 0 2px 8px rgba(255, 0, 85, 0.2);
}

.product-thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
}

/* Product Meta Info (Right Column) */
.product-info-wrap {
    display: flex;
    flex-direction: column;
}

.product-eyebrow-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.product-category-badge {
    background-color: #f1f5f9;
    color: #475569;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid #e2e8f0;
}

.product-iso-badge {
    background-color: #ecfdf5;
    color: #065f46;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid #a7f3d0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.product-title {
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 900;
    color: #0f172a;
    line-height: 1.2;
    margin: 0 0 1rem 0;
    font-family: 'Roboto', sans-serif;
}

.product-subtitle {
    font-size: 1.05rem;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 1.75rem;
}

/* Fast-Spec 2x2 Grid */
.fast-specs-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
    margin-bottom: 2rem;
}

.fast-spec-card {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.85rem 1.15rem;
    display: flex;
    flex-direction: column;
    gap: 3px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.fast-spec-card:hover {
    background-color: #ffffff;
    border-color: #cbd5e1;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
}

.fast-spec-card:hover .fast-spec-label {
    color: var(--primary-red, #ff0055);
}

.fast-spec-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
    transition: color 0.2s ease;
}

.fast-spec-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.35;
}

/* CTA Action Buttons Group */
.product-cta-group {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-bottom: 2rem;
}

.product-cta-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-product-rfp {
    flex: 1;
    min-width: 240px;
    background-color: var(--primary-red, #ff0055);
    color: #ffffff !important;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 8px;
    border: 2px solid var(--primary-red, #ff0055);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(255, 0, 85, 0.25);
    transition: var(--transition, all 0.2s ease);
}

.btn-product-rfp:hover {
    background-color: var(--primary-red-hover, #cc0044);
    border-color: var(--primary-red-hover, #cc0044);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 0, 85, 0.35);
}

.btn-product-pdf {
    background-color: #ffffff;
    color: #1e293b;
    border: 1px solid #cbd5e1;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: var(--transition, all 0.2s ease);
}

.btn-product-pdf:hover {
    background-color: #f1f5f9;
    color: #0f172a;
    border-color: #94a3b8;
}

.btn-product-call {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #475569;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    padding: 0.35rem 0;
    transition: var(--transition, all 0.2s ease);
}

.btn-product-call:hover {
    color: var(--primary-red, #ff0055);
}

/* Trust Signals Checklist */
.product-trust-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.product-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: #334155;
    font-weight: 500;
}

.product-trust-item svg {
    color: #10b981;
    flex-shrink: 0;
}

/* ==========================================================================
   Section: Problem Solved & Operational Application
   ========================================================================== */
.product-section {
    padding: 4rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.product-section.bg-light {
    background-color: #f8fafc;
}

.product-section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem auto;
}

.product-section-eyebrow {
    color: var(--primary-red, #ff0055);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
    display: block;
}

.product-section-title {
    font-size: clamp(1.8rem, 2.5vw, 2.25rem);
    font-weight: 800;
    color: #0f172a;
    line-height: 1.25;
    margin-bottom: 0.75rem;
}

.product-section-subtitle {
    font-size: 1.05rem;
    color: #64748b;
    line-height: 1.6;
}

/* Problem & Solution 2-Column Cards */
.problem-solution-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: stretch;
}

.problem-card,
.solution-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.22s ease;
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px -8px rgba(245, 158, 11, 0.18);
    border-color: #f59e0b;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px -8px rgba(255, 0, 85, 0.18);
    border-color: var(--primary-red, #ff0055);
}

.card-header-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.25rem;
}

.card-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.problem-card .card-icon-wrap {
    background-color: #fef3c7;
    color: #d97706;
}

.solution-card .card-icon-wrap {
    background-color: #ffe4e6;
    color: var(--primary-red, #ff0055);
}

.card-title-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}

.card-body-text {
    font-size: 0.98rem;
    color: #334155;
    line-height: 1.7;
    flex: 1;
}

.card-body-text p {
    margin-bottom: 1rem;
}

.card-body-text p:last-child {
    margin-bottom: 0;
}

/* Key Highlights Strip under Use Case */
.operational-highlights-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-top: 2rem;
}

.highlight-pill {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.highlight-pill:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
    border-color: #cbd5e1;
}

.highlight-pill svg {
    color: var(--primary-red, #ff0055);
    flex-shrink: 0;
}

.highlight-pill-content {
    display: flex;
    flex-direction: column;
}

.highlight-pill-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: #0f172a;
    transition: color 0.2s ease;
}

.highlight-pill:hover .highlight-pill-title {
    color: var(--primary-red, #ff0055);
}

.highlight-pill-desc {
    font-size: 0.8rem;
    color: #64748b;
}

/* ==========================================================================
   Section: Full Technical Specifications & Compliance
   ========================================================================== */
.specs-layout-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 2.5rem;
    align-items: start;
}

.specs-table-card,
.compliance-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.28s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.22s ease;
}

.specs-table-card:hover,
.compliance-card:hover {
    box-shadow: 0 14px 32px -6px rgba(15, 23, 42, 0.1);
    border-color: #cbd5e1;
}

.specs-card-header {
    background-color: #476274;
    color: #ffffff;
    padding: 1rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.full-specs-table {
    width: 100%;
    border-collapse: collapse;
}

.full-specs-table th,
.full-specs-table td {
    padding: 0.95rem 1.25rem;
    font-size: 0.92rem;
    border-bottom: 1px solid #f1f5f9;
    text-align: left;
    transition: background-color 0.18s ease, color 0.18s ease;
}

.full-specs-table th {
    background-color: #f8fafc;
    color: #475569;
    font-weight: 600;
    width: 35%;
}

.full-specs-table td {
    color: #0f172a;
    font-weight: 500;
}

.full-specs-table tr:last-child th,
.full-specs-table tr:last-child td {
    border-bottom: none;
}

.full-specs-table tbody tr {
    transition: background-color 0.18s ease;
    cursor: default;
}

.full-specs-table tbody tr:hover th,
.full-specs-table tbody tr:hover td {
    background-color: #f1f5f9;
}

.full-specs-table tbody tr:hover th {
    color: var(--primary-red, #ff0055);
    box-shadow: inset 4px 0 0 var(--primary-red, #ff0055);
}

.full-specs-table tbody tr:hover td {
    color: #0f172a;
}

/* Compliance Card (Right Side) */
.compliance-card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.compliance-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    margin: -0.25rem -0.5rem;
    transition: background-color 0.2s ease, transform 0.2s ease;
    cursor: default;
}

.compliance-item:hover {
    background-color: #f8fafc;
    transform: translateX(4px);
}

.compliance-icon {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background-color: #f1f5f9;
    color: #476274;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.compliance-item:hover .compliance-icon {
    background-color: #e2e8f0;
    color: var(--primary-red, #ff0055);
}

.compliance-content {
    display: flex;
    flex-direction: column;
}

.compliance-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 2px;
    transition: color 0.2s ease;
}

.compliance-item:hover .compliance-title {
    color: var(--primary-red, #ff0055);
}

.compliance-desc {
    font-size: 0.84rem;
    color: #64748b;
    line-height: 1.5;
}

/* ==========================================================================
   Section: Related Equipment & Similar Solutions Grid
   ========================================================================== */
.related-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.related-product-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease;
}

.related-product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.1);
    border-color: #cbd5e1;
}

.related-card-img-wrap {
    height: 190px;
    background-color: #ffffff;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    border-bottom: 1px solid #f1f5f9;
    overflow: hidden;
}

.related-card-img-wrap img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    transition: transform 0.35s ease;
}

.related-product-card:hover .related-card-img-wrap img {
    transform: scale(1.05);
}

.related-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    color: #ffffff;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.related-card-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.related-card-title {
    font-size: 1.02rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.5rem;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.7em;
    transition: color 0.2s ease;
}

.related-product-card:hover .related-card-title {
    color: var(--primary-red, #ff0055);
}

.related-card-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 0.75rem;
}

.related-spec-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.76rem;
    font-weight: 600;
    color: #475569;
    background: #f1f5f9;
    padding: 3px 8px;
    border-radius: 4px;
}

.related-card-desc {
    font-size: 0.84rem;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 1.15rem;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card-link {
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary-red, #ff0055);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    transition: gap 0.2s ease;
}

.related-product-card:hover .related-card-link {
    gap: 10px;
}

/* Solutions Link Banner */
.solution-anchor-banner {
    background: linear-gradient(135deg, #42525D 0%, #476274 100%);
    border-radius: 12px;
    padding: 2rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    color: #ffffff;
    margin-top: 3rem;
    box-shadow: 0 10px 24px -6px rgba(66, 82, 93, 0.28);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.solution-anchor-banner:hover {
    background: linear-gradient(135deg, #476274 0%, #42525D 100%);
    box-shadow: 0 16px 32px -6px rgba(71, 98, 116, 0.4);
    transform: translateY(-2px);
}

.solution-anchor-text h3 {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
    color: #ffffff;
}

.solution-anchor-text p {
    color: #e2e8f0;
    font-size: 0.95rem;
    margin: 0;
}

.btn-solution-anchor {
    background-color: #FF0155;
    color: #ffffff !important;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.85rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-solution-anchor:hover {
    background-color: #FF0155;
    filter: brightness(0.92);
    box-shadow: 0 4px 14px rgba(255, 1, 85, 0.4);
    transform: translateY(-2px);
}

/* ==========================================================================
   Section: High-Impact Bottom RFP Banner
   ========================================================================== */
.product-cta-banner-wrap {
    padding: 4.5rem 0;
    background-color: #f8fafc;
}

.product-cta-banner-box {
    background-color: #486274;
    border-radius: 20px;
    padding: 4rem 2.5rem;
    color: #ffffff;
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.35);
}

.product-cta-banner-box h2 {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.product-cta-banner-box p {
    font-size: 1.15rem;
    color: #d1d5db;
    max-width: 680px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.product-cta-banner-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.product-cta-banner-buttons .btn {
    padding: 1rem 1.75rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition, all 0.2s ease);
}

.product-cta-banner-buttons .btn-rfp {
    background-color: var(--primary-red, #ff0055);
    color: #ffffff !important;
    border: 2px solid var(--primary-red, #ff0055);
}

.product-cta-banner-buttons .btn-rfp:hover {
    background-color: var(--primary-red-hover, #cc0044);
    border-color: var(--primary-red-hover, #cc0044);
    transform: translateY(-2px);
}

.product-cta-banner-buttons .btn-call {
    background-color: transparent;
    color: #ffffff !important;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.product-cta-banner-buttons .btn-call:hover {
    border-color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* ==========================================================================
   Section: Engineering & Procurement Q&A Accordion
   ========================================================================== */
.product-faq-list {
    max-width: 920px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.product-faq-item {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.product-faq-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    border-color: #cbd5e1;
}

.product-faq-question {
    padding: 18px 22px;
    font-size: 1.02rem;
    font-weight: 700;
    color: #0f172a;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    user-select: none;
    transition: color 0.2s ease;
}

.product-faq-question::-webkit-details-marker {
    display: none;
}

.product-faq-question::after {
    content: '';
    width: 9px;
    height: 9px;
    border-right: 2px solid #64748b;
    border-bottom: 2px solid #64748b;
    transform: rotate(45deg);
    margin-bottom: 3px;
    transition: transform 0.2s ease, border-color 0.2s ease;
    flex-shrink: 0;
    margin-left: 1rem;
}

.product-faq-item[open] .product-faq-question::after {
    transform: rotate(-135deg);
    margin-bottom: -3px;
    border-color: var(--primary-red, #ff0055);
}

.product-faq-item[open] .product-faq-question {
    color: var(--primary-red, #ff0055);
}

.product-faq-answer {
    padding: 0 22px 20px;
    color: #475569;
    line-height: 1.65;
    font-size: 0.95rem;
}

.product-faq-answer p {
    margin: 0;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
    .product-stage-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .product-gallery-sticky {
        position: static;
    }

    .product-main-image-wrap {
        height: 420px;
    }

    .problem-solution-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .specs-layout-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .solution-anchor-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .btn-solution-anchor {
        width: 100%;
        justify-content: center;
    }

    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }
}

@media (max-width: 768px) {

    .product-container,
    .product-breadcrumb {
        padding: 0 1rem;
    }

    .product-hero-section {
        padding: 1.5rem 0 2.5rem 0;
    }

    .product-main-image-wrap {
        height: 340px;
    }

    .product-thumb-item {
        flex: 0 0 68px;
        height: 68px;
    }

    .fast-specs-grid {
        grid-template-columns: 1fr;
        gap: 0.65rem;
    }

    .product-cta-row {
        flex-direction: column;
    }

    .btn-product-rfp,
    .btn-product-pdf,
    .btn-product-call {
        width: 100%;
        touch-action: manipulation;
    }

    .product-trust-strip {
        grid-template-columns: 1fr;
    }

    .related-products-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .product-cta-banner-box {
        padding: 2.5rem 1.25rem;
    }

    .product-cta-banner-buttons {
        flex-direction: column;
        width: 100%;
    }

    .product-cta-banner-buttons .btn {
        width: 100%;
    }
}