/* pages.css — About, Products listing, Product detail, Certificates, Contact */

/* ─────────────────────────────────────────────────────────
   PAGE HERO BANNER (about / products / certs / contact)
───────────────────────────────────────────────────────── */
.page-hero {
    background: linear-gradient(120deg, var(--utl-navy) 0%, var(--utl-primary) 100%);
    color: #fff;
    padding: 56px 0 52px;
}

.page-hero h1 {
    margin: 0 0 10px;
    font-size: clamp(1.7rem, 3.5vw, 2.6rem);
    line-height: 1.15;
}

.page-hero .sub {
    margin: 0;
    color: #b8ccde;
    font-size: 1.05rem;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .8rem;
    color: #8aa0b8;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.breadcrumb a { color: #a8c0d8; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: .65rem; }

/* ─────────────────────────────────────────────────────────
   ABOUT PAGE
───────────────────────────────────────────────────────── */
.about-body {
    max-width: 820px;
}

.about-body h2,
.about-body h3 {
    color: var(--utl-navy);
}

.about-body p,
.about-body ul,
.about-body ol {
    color: #4a5568;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-body ul,
.about-body ol {
    padding-left: 1.4rem;
}

.about-body img {
    border-radius: 12px;
    margin: 1.5rem 0;
}

.about-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 40px 0;
}

.about-stat {
    background: var(--utl-bg);
    border-radius: 14px;
    padding: 24px 20px;
    text-align: center;
}

.about-stat .num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--utl-navy);
    line-height: 1;
}

.about-stat .label {
    font-size: .82rem;
    color: var(--utl-muted);
    margin-top: 6px;
}

/* ─────────────────────────────────────────────────────────
   PRODUCTS LISTING PAGE
───────────────────────────────────────────────────────── */
.products-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 32px;
    align-items: start;
}

/* Sidebar */
.products-sidebar {
    background: #fff;
    border: 1px solid var(--utl-line);
    border-radius: 14px;
    padding: 20px;
    position: sticky;
    top: 96px;
}

.products-sidebar h3 {
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--utl-blue);
    margin: 0 0 12px;
}

.cat-filter-group {
    margin-bottom: 16px;
}

.cat-filter-parent {
    font-weight: 700;
    font-size: .9rem;
    color: var(--utl-navy);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    cursor: pointer;
    text-decoration: none;
}

.cat-filter-parent:hover,
.cat-filter-parent.active { color: var(--utl-red); }

.cat-filter-children {
    padding-left: 16px;
    border-left: 2px solid var(--utl-line);
    margin-left: 6px;
}

.cat-filter-child {
    display: block;
    padding: 4px 0 4px 8px;
    font-size: .86rem;
    color: var(--utl-muted);
    text-decoration: none;
}

.cat-filter-child:hover,
.cat-filter-child.active {
    color: var(--utl-red);
}

.prod-count-badge {
    margin-left: auto;
    font-size: .68rem;
    background: var(--utl-bg);
    color: var(--utl-muted);
    border-radius: 20px;
    padding: 2px 7px;
    font-weight: 600;
}

/* Product grid (reused from home.css but 3-col here) */
.prod-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* ─────────────────────────────────────────────────────────
   PRODUCT DETAIL PAGE
───────────────────────────────────────────────────────── */
.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

/* Gallery */
.pd-gallery {
    position: sticky;
    top: 96px;
}

.pd-main-img {
    border-radius: 18px;
    overflow: hidden;
    background: #f8fafc;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
    margin-bottom: 14px;
    border: 1px solid var(--utl-line);
    box-shadow: 0 8px 24px rgba(15, 37, 64, .06);
}

.pd-main-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 18px;
    cursor: zoom-in;
    transition: transform 0.35s ease;
}

.pd-main-img img:hover {
    transform: scale(1.03);
}

.pd-thumbs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.pd-thumb-item {
    width: 76px;
    height: 76px;
    border-radius: 14px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color .2s, transform .2s, box-shadow .2s;
    box-shadow: 0 2px 8px rgba(15, 37, 64, .06);
}

.pd-thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.pd-thumb-item:hover {
    transform: translateY(-2px);
    border-color: rgba(192, 57, 43, .4);
}

.pd-thumb-item.active {
    border-color: var(--utl-red);
    box-shadow: 0 4px 14px rgba(192, 57, 43, .3);
}

/* Right col */
.pd-info {}

.pd-category-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--utl-blue);
    background: #e8f4fc;
    border-radius: 20px;
    padding: 4px 12px;
    margin-bottom: 14px;
}

.pd-info h1 {
    margin: 0 0 14px;
    font-size: clamp(1.5rem, 2.5vw, 2.1rem);
    color: var(--utl-navy);
    line-height: 1.2;
}

.pd-short-desc {
    font-size: 1.05rem;
    color: #4a5568;
    line-height: 1.75;
    margin-bottom: 24px;
}

.pd-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

/* Cert badges */
.pd-certs {
    margin-top: 20px;
}

.pd-certs-title {
    font-size: .78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--utl-muted);
    margin-bottom: 10px;
}

.pd-cert-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pd-cert-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .78rem;
    font-weight: 600;
    color: #276B3E;
    background: #e6f4ec;
    border: 1px solid #b2d8be;
    border-radius: 20px;
    padding: 4px 12px;
}

.pd-cert-badge i { color: #34a853; }

/* Tabs */
.pd-tabs {
    margin-top: 48px;
}

.pd-tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--utl-line);
    margin-bottom: 28px;
}

.pd-tab-btn {
    padding: 10px 20px;
    font-size: .9rem;
    font-weight: 600;
    color: var(--utl-muted);
    border: none;
    background: transparent;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color .15s, border-color .15s;
}

.pd-tab-btn.active {
    color: var(--utl-navy);
    border-bottom-color: var(--utl-red);
}

.pd-tab-btn:hover { color: var(--utl-red); }

.pd-tab-panel { display: none; }
.pd-tab-panel.active { display: block; }

.pd-tab-panel .rich-content {
    color: #4a5568;
    line-height: 1.8;
}

.pd-tab-panel .rich-content h2,
.pd-tab-panel .rich-content h3 {
    color: var(--utl-navy);
    margin-top: 1.4rem;
}

.pd-tab-panel .rich-content p,
.pd-tab-panel .rich-content ul,
.pd-tab-panel .rich-content ol {
    margin-bottom: 1rem;
}

.pd-tab-panel .rich-content ul,
.pd-tab-panel .rich-content ol {
    padding-left: 1.4rem;
}

/* Video embed */
.video-wrap {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: 12px;
    overflow: hidden;
}

.video-wrap iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Related products */
.related-section {
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid var(--utl-line);
}

.slider-nav-btns {
    display: flex;
    gap: 8px;
    align-items: center;
}

.slider-nav-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--utl-line);
    background: #fff;
    color: var(--utl-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: .85rem;
    transition: background .2s, border-color .2s, color .2s, transform .15s;
    box-shadow: 0 2px 8px rgba(15, 37, 64, .06);
}

.slider-nav-btn:hover {
    background: var(--utl-navy);
    border-color: var(--utl-navy);
    color: #fff;
    transform: scale(1.05);
}

.slider-nav-btn:active {
    transform: scale(0.95);
}

.related-slider-wrap {
    position: relative;
    overflow: hidden;
    padding: 10px 4px 16px;
    margin: 0 -4px;
}

.related-slider {
    display: flex;
    gap: 20px;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.rel-card {
    flex: 0 0 calc((100% - 40px) / 3);
    min-width: 0;
    background: #ffffff;
    border: 1px solid var(--utl-line);
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 6px 20px rgba(15, 37, 64, .06);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.rel-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(15, 37, 64, .12);
    border-color: rgba(192, 57, 43, .25);
}

.rel-card .prod-thumb {
    height: 220px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4f8, #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
}

.rel-card .prod-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s cubic-bezier(.25,.46,.45,.94);
}

.rel-card:hover .prod-thumb img {
    transform: scale(1.08);
}

.rel-cat-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(10, 25, 47, .75);
    color: #fff;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: 4px 12px;
    border-radius: 20px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

.rel-card .prod-body {
    padding: 18px 20px 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.rel-card .prod-body h3 {
    margin: 0 0 16px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--utl-navy);
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rel-card .prod-actions {
    margin-top: auto;
    display: flex;
    gap: 10px;
}

.rel-card .prod-actions .btn {
    flex: 1;
    padding: 10px 12px;
    font-size: .82rem;
    font-weight: 600;
    border-radius: 10px;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all .2s ease;
}

.rel-card .prod-actions .btn-ghost {
    background: #f8fafc;
    color: var(--utl-navy);
    border: 1px solid var(--utl-line);
}

.rel-card .prod-actions .btn-ghost:hover {
    background: var(--utl-navy);
    color: #fff;
    border-color: var(--utl-navy);
}

.rel-card .prod-actions .btn-red {
    background: var(--utl-red);
    color: #fff;
    border: none;
    box-shadow: 0 4px 12px rgba(192, 57, 43, .25);
}

.rel-card .prod-actions .btn-red:hover {
    background: #a93226;
    box-shadow: 0 6px 16px rgba(192, 57, 43, .35);
    transform: translateY(-1px);
}

.related-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.rel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #d0dbe8;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background .2s, width .2s;
}

.rel-dot.active {
    background: var(--utl-red);
    width: 24px;
    border-radius: 4px;
}

/* Lightbox */
.lightbox-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.88);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.lightbox-overlay.open {
    display: flex;
}

.lightbox-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 8px;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 1.6rem;
    color: #fff;
    cursor: pointer;
    background: none;
    border: none;
    line-height: 1;
}

/* ─────────────────────────────────────────────────────────
   CERTIFICATES PAGE
───────────────────────────────────────────────────────── */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cert-card {
    background: #fff;
    border: 1px solid var(--utl-line);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow .2s, transform .2s;
}

.cert-card:hover {
    box-shadow: 0 12px 32px rgba(15, 37, 64, .1);
    transform: translateY(-3px);
}

.cert-preview {
    height: 200px;
    background: var(--utl-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
    font-size: 3rem;
    overflow: hidden;
}

.cert-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 16px;
}

.cert-body {
    padding: 18px 20px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.cert-body h3 {
    margin: 0 0 10px;
    font-size: 1.05rem;
    color: var(--utl-navy);
    line-height: 1.3;
}

.cert-meta {
    font-size: .78rem;
    color: var(--utl-muted);
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cert-meta span { display: flex; align-items: center; gap: 6px; }
.cert-meta i { color: var(--utl-blue); width: 14px; }

.cert-actions {
    margin-top: auto;
    display: flex;
    gap: 10px;
}

.cert-validity-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: .7rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.cert-validity-badge.valid {
    background: #e6f4ec;
    color: #276b3e;
}

.cert-validity-badge.expired {
    background: #fce8e6;
    color: #c0392b;
}

/* ─────────────────────────────────────────────────────────
   CONTACT PAGE
───────────────────────────────────────────────────────── */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: start;
}

.contact-info-card {
    background: var(--utl-navy);
    color: #d5deea;
    border-radius: 18px;
    padding: 36px 32px;
}

.contact-info-card h2 {
    color: #fff;
    margin: 0 0 8px;
    font-size: 1.4rem;
}

.contact-info-card .sub {
    color: #8aa0b8;
    font-size: .9rem;
    margin-bottom: 32px;
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 22px;
}

.contact-detail-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--utl-red);
    flex-shrink: 0;
}

.contact-detail-item strong {
    display: block;
    color: #fff;
    font-size: .9rem;
    margin-bottom: 2px;
}

.contact-detail-item a {
    color: #a8c0d8;
    font-size: .88rem;
}

.contact-detail-item a:hover { color: #fff; }

/* Enquiry form */
.enquiry-form-card {
    background: #fff;
    border: 1px solid var(--utl-line);
    border-radius: 18px;
    padding: 36px;
}

.enquiry-form-card h2 {
    margin: 0 0 24px;
    color: var(--utl-navy);
    font-size: 1.4rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: .82rem;
    font-weight: 600;
    color: var(--utl-text);
    margin-bottom: 6px;
}

.form-group label .req { color: var(--utl-red); margin-left: 2px; }

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #d0dbe8;
    border-radius: 8px;
    font-family: inherit;
    font-size: .9rem;
    color: var(--utl-text);
    background: #fff;
    outline: none;
    transition: border-color .15s;
}

.form-control:focus {
    border-color: var(--utl-primary);
    box-shadow: 0 0 0 3px rgba(26, 58, 92, .08);
}

textarea.form-control { resize: vertical; min-height: 120px; }

select.form-control { appearance: none; }

.form-alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: .88rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-alert.success {
    background: #e6f4ec;
    color: #276b3e;
    border: 1px solid #b2d8be;
}

.form-alert.error {
    background: #fce8e6;
    color: #c0392b;
    border: 1px solid #f0bab6;
}

/* ─────────────────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────────────────── */
@media (max-width: 991px) {
    .products-layout {
        grid-template-columns: 1fr;
    }

    .products-sidebar {
        position: static;
    }

    .prod-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .rel-card {
        flex: 0 0 calc((100% - 20px) / 2);
    }

    .product-detail-layout {
        grid-template-columns: 1fr;
    }

    .pd-gallery { position: static; }

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

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .about-highlight {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 575px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .prod-grid-3 {
        grid-template-columns: 1fr;
    }

    .rel-card {
        flex: 0 0 100%;
    }

    .cert-grid {
        grid-template-columns: 1fr;
    }

    .about-highlight {
        grid-template-columns: 1fr;
    }

    .pd-actions {
        flex-direction: column;
    }
}