/* ══════════════════════════════
        TOKENS
        ══════════════════════════════ */
    :root {
        --ink: #0e0e0e;
        --ink2: #1e1e1e;
        --mid: #555;
        --muted: #888;
        --border: #e4e4e4;
        --off: #f7f7f5;
        --white: #ffffff;
        --navy: #0f1a2e;
        --blue: #1a6fd4;
        --gold: #c8962a;
        --red: #c0392b;
        --ease: cubic-bezier(.22, 1, .36, 1);
    }

    @import url('https://fonts.googleapis.com/css2?family=Roboto+Flex:opsz,wght,XOPQ,XTRA,YOPQ,YTDE,YTFI,YTLC,YTUC@8..144,100..1000,96,468,79,-203,738,514,712&display=swap');

    /* ══════════════════════════════
   RESET
══════════════════════════════ */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0
    }

    html {
        scroll-behavior: smooth
    }

    body {
        font-family: "Roboto Flex", sans-serif;
        font-optical-sizing: auto;
        font-style: normal;
        font-variation-settings:
            "slnt"0,
            "wdth"100,
            "GRAD"0,
            "XOPQ"96,
            "XTRA"468,
            "YOPQ"79,
            "YTAS"750,
            "YTDE"-203,
            "YTFI"738,
            "YTLC"514,
            "YTUC"712;
        font-weight: 400;
        background: #fff;
        color: var(--ink);
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased
    }

    a {
        text-decoration: none;
        color: inherit
    }

    ul {
        list-style: none
    }

    img {
        display: block;
        max-width: 100%
    }

    @media(prefers-reduced-motion:reduce) {
        * {
            animation-duration: .01ms !important;
            transition-duration: .01ms !important
        }
    }

    /* ══════════════════════════════
   LAYOUT
══════════════════════════════ */
    .container {
        width: 100%;
        max-width: 1240px;
        margin: 0 auto;
        padding:0rem 1.3rem;
    }

    /* section label */
    .sec-label {
        display: flex;
        align-items: center;
        gap: .6rem;
        margin-bottom: 1rem
    }

    .sl-line {
        width: 32px;
        height: 1.5px;
        background: #000;
        border-radius: 2px
    }

    .sl-dots {
        display: flex;
        gap: 4px
    }

    .sl-dots span {
        border-radius: 50%;
        background: #000b1e;
        display: block
    }

    .sl-dots span:nth-child(1) {
        width: 7px;
        height: 7px
    }

    .sl-dots span:nth-child(2) {
        width: 7px;
        height: 7px;
        background: #0a4fc5
    }

    .sl-dots span:nth-child(3) {
        width: 7px;
        height: 7px
    }

    .sl-text {
        font-size: 1rem;
        font-weight: 600;
        color: #000;
        letter-spacing: .02em;
        margin-left: 2px
    }

    /* reveal */
    .r {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity .7s var(--ease), transform .7s var(--ease)
    }

    .r.up {
        opacity: 1;
        transform: translateY(0)
    }

    .r-left {
        opacity: 0;
        transform: translateX(-28px);
        transition: opacity .7s var(--ease), transform .7s var(--ease)
    }

    .r-left.up {
        opacity: 1;
        transform: translateX(0)
    }

    .r-right {
        opacity: 0;
        transform: translateX(28px);
        transition: opacity .7s var(--ease), transform .7s var(--ease)
    }

    .r-right.up {
        opacity: 1;
        transform: translateX(0)
    }


    /* ══════════════════════════════
   BREADCRUMB
══════════════════════════════ */
    .breadcrumb {
        background: var(--off);
        border-bottom: 1px solid var(--border);
    }

    .breadcrumb-inner {
        display: flex;
        align-items: center;
        gap: .5rem;
        padding: clamp(.65rem, 1.5vw, 1rem) 0;
        flex-wrap: wrap;
    }

    .breadcrumb a,
    .breadcrumb span {
        font-size: .78rem;
        font-weight: 500;
        color: var(--muted);
        transition: color .2s;
    }

    .breadcrumb a:hover {
        color: var(--ink)
    }

    .breadcrumb .sep {
        color: var(--ink2);
    }

    .breadcrumb .current {
        color: var(--ink);
        font-weight: 600
    }

    /* ══════════════════════════════
   PRODUCT HERO
══════════════════════════════ */
    .product-hero {
        padding: clamp(2.5rem, 5vw, 4rem) 0;
        background: #fff;
    }

    .product-hero-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: clamp(2.5rem, 5vw, 5rem);
        align-items: start;
    }

    /* Image panel */

    .ph-main-img {
        position: relative;
        background: var(--off);
        border: 1.5px solid var(--border);
        border-radius: 18px;
        overflow: hidden;
        aspect-ratio: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .ph-main-img img {
        max-width: 72%;
        max-height: 80%;
        object-fit: contain;
        transition: transform .4s var(--ease);
    }

    .ph-main-img:hover img {
        transform: scale(1.04)
    }

    /* ISO badge */
    .ph-badge {
        position: absolute;
        top: 14px;
        right: 14px;
        background: var(--navy);
        border-radius: 8px;
        padding: .45rem .7rem;
        display: flex;
        align-items: center;
        gap: .35rem;
    }

    .ph-badge svg {
        width: 13px;
        height: 13px;
        stroke: #fff;
        fill: none;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round
    }

    .ph-badge-text {
        font-size: .6rem;
        font-weight: 600;
        letter-spacing: .1em;
        text-transform: uppercase;
        color: rgba(255, 255, 255, .85)
    }

    /* Thumbnails */
    .ph-thumbs {
        display: flex;
        gap: .65rem;
        margin-top: .85rem;
        flex-wrap: wrap
    }

    .ph-thumb {
        width: 72px;
        height: 72px;
        background: var(--off);
        border: 1.5px solid var(--border);
        border-radius: 10px;
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: border-color .2s, box-shadow .2s;
        flex-shrink: 0;
    }

    .ph-thumb:hover {
        border-color: var(--navy);
        box-shadow: 0 2px 10px rgba(0, 0, 0, .08)
    }

    .ph-thumb.active {
        border-color: var(--navy);
        box-shadow: 0 0 0 2px rgba(15, 26, 46, .12)
    }

    .ph-thumb img {
        max-width: 80%;
        max-height: 80%;
        object-fit: contain
    }

    /* Info panel */
    /* Product category tag */
    .ph-cat-tag {
        display: inline-flex;
        align-items: center;
        gap: .4rem;
        background: rgba(26, 111, 212, .08);
        border: 1px solid rgba(26, 111, 212, .18);
        border-radius: 20px;
        padding: .28rem .8rem;
        font-size: .7rem;
        font-weight: 600;
        letter-spacing: .08em;
        text-transform: uppercase;
        color: var(--blue);
        margin-bottom: 1rem;
    }

    .ph-cat-tag svg {
        width: 11px;
        height: 11px;
        stroke: var(--blue);
        fill: none;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round
    }

    .ph-title {
        font-weight: 600;
        font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        color: var(--ink);
        line-height: 1.15;
        letter-spacing: -.01em;
        margin-bottom: .7rem;
    }

    .ph-subtitle {
        font-size: clamp(.85rem, 1.3vw, .97rem);
        font-weight: 400;
        color: var(--mid);
        line-height: 1.49;
        margin-bottom: 1.5rem;
        max-width: 480px;
    }

    /* Spec pills row */
    .ph-specs {
        display: flex;
        flex-wrap: wrap;
        gap: .72rem;
        margin-bottom: 1.7rem
    }

    .ph-spec {
        display: inline-flex;
        align-items: center;
        gap: .35rem;
        background: var(--off);
        border: 1.5px solid var(--border);
        border-radius: 8px;
        padding: .35rem .8rem;
        font-size: .78rem;
        font-weight: 500;
        color: var(--ink2);
    }

    .ph-spec svg {
        width: 16px;
        height: 16px;
        stroke: var(--navy);
        fill: none;
        stroke-width: 1.8;
        stroke-linecap: round;
        stroke-linejoin: round
    }

    .ph-spec strong {
        font-weight: 600
    }

    /* Scope list */
    .ph-scope-title {
        font-weight: 600;
        font-size: .8rem;
        letter-spacing: .06em;
        text-transform: uppercase;
        color: var(--muted);
        margin-bottom: .65rem;
        margin-top: 1.3rem;
    }

    .ph-scope-list {
        display: flex;
        flex-direction: column;
        gap: .35rem;
        margin-bottom: 1rem
    }

    .ph-scope-item {
        display: flex;
        align-items: flex-start;
        gap: .6rem;
        font-size: clamp(.8rem, 1.2vw, .88rem);
        font-weight: 400;
        color: var(--mid);
        line-height: 1.55;
    }

    .ph-scope-item::before {
        content: '';
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: var(--blue);
        flex-shrink: 0;
        margin-top: .45rem;
    }

    /* CTA buttons */
    .ph-actions {
        display: flex;
        flex-wrap: wrap;
        gap: .75rem;
        margin-top: 1.6rem
    }

    .btn-inquiry {
        display: inline-flex;
        align-items: center;
        gap: .55rem;
        background: black;
        color: #fff;
        font-weight: 500;
        font-size: .88rem;
        letter-spacing: .04em;
        padding: .42rem .39rem .42rem 1.5rem;
        border-radius: 50px;
        border: none;
        cursor: pointer;
        transition: background .22s, transform .2s, box-shadow .22s;
        box-shadow: 0 4px 20px rgba(15, 26, 46, .25);
    }

    .btn-inquiry:hover {
        background: #1a2e50;
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(15, 26, 46, .32)
    }

    .btn-inquiry .arr {
        width: 30px;
        height: 30px;
        border-radius: 50%;
        background: #fff;
        display: flex;
        align-items: center;
        justify-content: center
    }

    .btn-inquiry .arr svg {
        width: 12px;
        height: 12px;
        stroke: var(--navy);
        fill: none;
        stroke-width: 2.5;
        stroke-linecap: round;
        stroke-linejoin: round
    }

    .btn-whatsapp {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        background: #25D366;
        color: #fff;
        font-weight: 500;
        font-size: .88rem;
        letter-spacing: .03em;
        padding: .72rem 1.4rem;
        border-radius: 50px;
        border: none;
        cursor: pointer;
        transition: background .22s, transform .2s;
    }

    .btn-whatsapp:hover {
        background: #1fb959;
        transform: translateY(-2px)
    }

    .btn-whatsapp svg {
        width: 18px;
        height: 18px;
        stroke: #fff;
        fill: none;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round
    }

    .btn-download {
        display: inline-flex;
        align-items: center;
        gap: .45rem;
        background: transparent;
        color: var(--ink);
        font-weight: 500;
        font-size: .88rem;
        padding: .7rem 1.3rem;
        border-radius: 50px;
        border: 1.5px solid var(--border);
        cursor: pointer;
        transition: border-color .2s, color .2s;
    }

    .btn-download:hover {
        border-color: #999;
        color: var(--mid);
    }

    .btn-download svg {
        width: 18px;
        height: 18px;
        stroke: currentColor;
        fill: none;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round
    }

    /* ══════════════════════════════
   PRODUCT DETAILS TABS
══════════════════════════════ */
    .product-tabs {
        background: var(--off);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        padding: 0;
        position: sticky;
        top: 64px;
        z-index: 10;
    }

    .tabs-inner {
        display: flex;
        gap: 0;
        overflow-x: auto;
        scrollbar-width: none
    }

    .tabs-inner::-webkit-scrollbar {
        display: none
    }

    .tab-btn {
        flex-shrink: 0;
        padding: .85rem 1.4rem;
        font-size: .89rem;
        font-weight: 500;
        color: var(--muted);
        letter-spacing: .04em;
        background: transparent;
        border: none;
        cursor: pointer;
        border-bottom: 2px solid transparent;
        transition: color .2s, border-color .2s;
        white-space: nowrap;
    }

    .tab-btn:hover {
        color: var(--ink)
    }

    .tab-btn.active {
        color: var(--navy);
        font-weight: 600;
        border-bottom-color: var(--navy)
    }

    /* ══════════════════════════════
    TAB CONTENT PANELS
    ══════════════════════════════ */
    .tab-panels {
        padding: clamp(2rem, 4vw, 3.5rem) 0
    }

    .tab-panel {
        display: none
    }

    .tab-panel.active {
        display: block
    }

    /* How to use */
    .htu-steps {
        display: flex;
        flex-direction: column;
        gap: 1.1rem
    }

    .htu-step {
        display: flex;
        align-items: flex-start;
        gap: 1.1rem;
        padding: 1.2rem 1.4rem;
        background: var(--white);
        border: 1.5px solid var(--border);
        border-radius: 12px;
        transition: border-color .22s, box-shadow .22s;
    }

    .htu-step:hover {
        border-color: #c8c8c8;
        box-shadow: 0 4px 16px rgba(0, 0, 0, .06)
    }

    .htu-num {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--navy);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        font-family: 'Barlow Condensed', sans-serif;
        font-weight: 600;
        font-size: 1rem;
        color: #fff;
    }

    .htu-text {
        font-size: clamp(.83rem, 1.2vw, .92rem);
        font-weight: 400;
        color: var(--ink2);
        line-height: 1.65;
        padding-top: .22rem
    }

    /* Technical data table */
    .tech-table {
        width: 100%;
        border-collapse: collapse
    }

    .tech-table tr {
        border-bottom: 1px solid var(--border)
    }

    .tech-table tr:last-child {
        border-bottom: none
    }

    .tech-table td {
        padding: 1rem 1.1rem;
        font-size: clamp(.8rem, 1.2vw, .9rem);
        vertical-align: top
    }

    .tech-table td:first-child {
        font-weight: 600;
        color: var(--ink2);
        width: 38%;
        background: var(--off);
        border-right: 1px solid var(--border)
    }

    .tech-table td:last-child {
        font-weight: 400;
        color: var(--mid)
    }

    .tech-wrap {
        background: var(--white);
        border: 1.5px solid var(--border);
        border-radius: 14px;
        overflow: hidden
    }

    /* ══════════════════════════════
   WHY CHOOSE — 4 CARDS
══════════════════════════════ */
    .why-section {
        background: var(--navy);
        padding: clamp(3rem, 6vw, 5rem) 0;
        position: relative;
        overflow: hidden;
    }

    .why-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cg stroke='rgba(255,255,255,0.04)' stroke-width='1' fill='none'%3E%3Crect x='5' y='5' width='22' height='28' rx='2'/%3E%3Ccircle cx='60' cy='20' r='9'/%3E%3Cline x1='60' y1='4' x2='60' y2='9'/%3E%3Cline x1='60' y1='31' x2='60' y2='36'/%3E%3Cline x1='44' y1='20' x2='49' y2='20'/%3E%3Cline x1='71' y1='20' x2='76' y2='20'/%3E%3C/g%3E%3C/svg%3E") repeat;
        pointer-events: none;
    }

    .why-head {
        position: relative;
        z-index: 1;
        text-align: center;
        margin-bottom: clamp(2rem, 4vw, 3.2rem)
    }

    .why-label {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        font-size: .77rem;
        font-weight: 500;
        letter-spacing: .12em;
        text-transform: uppercase;
        color: rgba(255, 255, 255, 0.62);
        margin-bottom: .8rem;
    }

    .why-label::before {
        content: '';
        width: 52px;
        height: 0.8px;
        background: rgba(255, 255, 255, 0.7);
        display: block;
        border-radius: 1px
    }

    .why-title {
        font-weight: 600;
        font-size: clamp(1.4rem, 3vw, 2.1rem);
        color: #fff;
        letter-spacing: -.01em;
        line-height: 1.25;
    }

    .why-title span {
        color: rgba(255, 255, 255, .35)
    }

    .why-grid {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(.8rem, 1.5vw, 1.1rem);
    }

    .why-card {
        background: rgba(255, 255, 255, .06);
        border: 1px solid rgba(255, 255, 255, .10);
        border-radius: 14px;
        padding: clamp(1.4rem, 2.5vw, 2rem) clamp(1.1rem, 2vw, 1.5rem);
        display: flex;
        flex-direction: column;
        gap: .7rem;
        transition: background .28s, border-color .28s, transform .28s var(--ease);
    }

    .why-card:hover {
        background: rgba(255, 255, 255, .10);
        border-color: rgba(255, 255, 255, .18);
        transform: translateY(-4px);
    }

    .why-card-icon {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: rgba(255, 255, 255, .10);
        border: 1px solid rgba(255, 255, 255, .14);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background .28s;
    }

    .why-card:hover .why-card-icon {
        background: rgba(255, 255, 255, .16)
    }

    .why-card-icon svg {
        width: 20px;
        height: 20px;
        stroke: #fff;
        fill: none;
        stroke-width: 1.8;
        stroke-linecap: round;
        stroke-linejoin: round;
        opacity: .85
    }

    .why-card-title {
        font-weight: 600;
        font-size: clamp(.88rem, 1.4vw, 1rem);
        color: #fff;
        line-height: 1.3;
        letter-spacing: -.01em
    }

    .why-card-body {
        font-size: clamp(.75rem, 1.1vw, .82rem);
        font-weight: 400;
        color: rgba(255, 255, 255, .5);
        line-height: 1.7
    }

    /* ══════════════════════════════
   RELATED PRODUCTS
══════════════════════════════ */
    .related {
        padding: clamp(2.5rem, 5vw, 4rem) 0
    }

    .related-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 1rem;
        margin-bottom: clamp(1.5rem, 3vw, 2.2rem)
    }

    .related-title {
        font-weight: 600;
        font-size: clamp(1.3rem, 2.5vw, 1.8rem);
        color: var(--ink);
        letter-spacing: -.01em
    }


    .related-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(.7rem, 1.5vw, 1rem)
    }

    .rel-card {
        background: var(--off);
        border: 1.5px solid var(--border);
        border-radius: 12px;
        overflow: hidden;
        cursor: pointer;
        transition: border-color .22s, box-shadow .22s, transform .25s var(--ease);
        text-decoration: none;
        color: inherit;
        display: flex;
        flex-direction: column;
    }

    .rel-card:hover {
        border-color: #bbb;
        box-shadow: 0 6px 28px rgba(0, 0, 0, .09);
        transform: translateY(-3px)
    }

    .rel-img {
        aspect-ratio: 1;
        background: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        border-bottom: 1px solid var(--border);
        padding: 1.2rem;
    }

    .rel-img img {
        max-width: 70%;
        max-height: 70%;
        object-fit: contain;
        transition: transform .3s var(--ease)
    }

    .rel-card:hover .rel-img img {
        transform: scale(1.06)
    }

    .rel-body {
        padding: .9rem 1rem 1.1rem
    }

    .rel-name {
        font-weight: 600;
        font-size: clamp(.8rem, 1.2vw, .88rem);
        color: var(--ink);
        margin-bottom: .25rem;
        letter-spacing: .05em
    }

    .rel-tag {
        font-size: .65rem;
        font-weight: 500;
        letter-spacing: .08em;
        text-transform: uppercase;
        color: var(--muted)
    }

    /* ══════════════════════════════
   INQUIRY CTA STRIP
══════════════════════════════ */
    .inquiry-strip {
        background: var(--off);
        border-top: 1px solid var(--border);
        padding: clamp(2rem, 4vw, 3.2rem) 0;
    }

    .inquiry-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    .inquiry-text h2 {
        font-weight: 600;
        font-size: clamp(1.2rem, 2.5vw, 1.7rem);
        color: var(--ink);
        margin-bottom: .4rem;
        letter-spacing: -.01em
    }

    .inquiry-text p {
        font-size: clamp(.82rem, 1.2vw, .92rem);
        color: var(--mid);
        max-width: 460px;
        line-height: 1.7
    }

    .inquiry-actions {
        display: flex;
        flex-wrap: wrap;
        gap: .75rem;
        align-items: center
    }

    /* Inquiry card — no form, just contact methods */
    .inquiry-methods {
        display: flex;
        gap: .65rem;
        flex-wrap: wrap;
        margin-top: 0;
    }

    .inq-method {
        display: flex;
        align-items: center;
        gap: .6rem;
        background: #fff;
        border: 1.5px solid var(--border);
        border-radius: 12px;
        padding: .75rem 1.1rem;
        cursor: pointer;
        transition: border-color .22s, box-shadow .22s, transform .22s;
        text-decoration: none;
        color: inherit;
        flex-shrink: 0;
    }

    .inq-method:hover {
        border-color: #999;
        box-shadow: 0 4px 16px rgba(0, 0, 0, .08);
        transform: translateY(-2px)
    }

    .inq-method-icon {
        width: 36px;
        height: 36px;
        border-radius: 9px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .inq-method-icon.navy {
        background: var(--navy)
    }

    .inq-method-icon.green {
        background: #25D366
    }

    .inq-method-icon.mail {
        background: #ea4335
    }

    .inq-method-icon svg {
        width: 16px;
        height: 16px;
        stroke: #fff;
        fill: none;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round
    }


    .inq-method-label {
        font-size: .6rem;
        font-weight: 600;
        letter-spacing: .1em;
        text-transform: uppercase;
        color: var(--muted);
        display: block
    }

    .inq-method-val {
        font-size: .83rem;
        font-weight: 600;
        color: var(--ink2)
    }

    /* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
    @media(max-width:960px) {
        .nav-links {
            display: none
        }

        .nav-ham {
            display: flex
        }

        .nav-cta span {
            display: none
        }

        .nav-cta {
            padding: .42rem .5rem
        }

        .product-hero-grid {
            grid-template-columns: 1fr;
            gap: 2rem
        }

        .ph-main-img {
            max-width: 380px;
            margin: 0 auto
        }

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

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

        .inquiry-inner {
            flex-direction: column;
            align-items: flex-start
        }
    }

    @media(max-width:560px) {
        .why-grid {
            grid-template-columns: repeat(2, 1fr)
        }

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

        .ph-actions {
            flex-direction: column;
            align-items: stretch
        }

        .btn-inquiry,
        .btn-whatsapp,
        .btn-download {
            justify-content: center
        }
    }

    @media(max-width:420px) {
        .why-grid {
            grid-template-columns: 1fr
        }

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