/* ==========================================================================
   Local Web Fonts — Inter (variable font, weight axis 400-800)
   Self-hosted woff2 subsets; no external font service is contacted.
   ========================================================================== */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../fonts/inter-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../fonts/inter-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
        /* ============ Design Tokens ============ */
        :root {
            --navy-900: #081828;
            --navy-800: #0d2438;
            --navy-700: #12314c;
            --steel-600: #1f4e6e;
            --steel-500: #2f6f96;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --text-dark: #16242f;
            --text-body: #4a5b68;
            --text-muted: #71808d;
            --bg-light: #f4f7f9;
            --white: #ffffff;
            --border: #e2e8ee;
            --header-h: 76px;
            --shadow-sm: 0 2px 10px rgba(8, 24, 40, .06);
            --shadow-md: 0 12px 32px rgba(8, 24, 40, .10);
            --shadow-lg: 0 24px 60px rgba(8, 24, 40, .18);
            --radius: 10px;
            --max-w: 1180px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-h);
        }

        body {
            font-family: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-body);
            line-height: 1.7;
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4 { color: var(--text-dark); line-height: 1.25; font-weight: 700; }

        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }

        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        section { scroll-margin-top: var(--header-h); }

        .section-tag {
            display: inline-block;
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .18em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(1.7rem, 3.4vw, 2.4rem);
            margin-bottom: 16px;
        }

        .section-lead {
            max-width: 720px;
            font-size: 1.05rem;
        }

        .section-head { margin-bottom: 52px; }
        .section-head.text-center { text-align: center; }
        .section-head.text-center .section-lead { margin: 0 auto; }

        /* ============ Buttons ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 6px;
            font-weight: 600;
            font-size: .95rem;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
            cursor: pointer;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--navy-900);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, .65);
            color: var(--white);
        }
        .btn-outline-light:hover {
            background: var(--white);
            color: var(--navy-900);
            transform: translateY(-2px);
        }

        /* ============ Header ============ */
        .site-header {
            position: fixed;
            inset: 0 0 auto 0;
            height: var(--header-h);
            z-index: 1000;
            background: rgba(8, 24, 40, .92);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: background .3s ease, box-shadow .3s ease;
        }
        .site-header.scrolled {
            background: rgba(8, 24, 40, .97);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand { display: flex; align-items: center; gap: 12px; color: var(--white); }
        .brand-mark {
            width: 42px; height: 42px;
            flex: 0 0 42px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            display: grid;
            place-items: center;
            color: var(--navy-900);
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: .02em;
        }
        .brand-text { display: flex; flex-direction: column; line-height: 1.25; }
        .brand-name { font-weight: 700; font-size: 1rem; }
        .brand-sub { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.6); }

        .main-nav ul { display: flex; align-items: center; gap: 34px; }
        .main-nav a {
            color: rgba(255, 255, 255, .85);
            font-size: .93rem;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color .2s ease;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0; bottom: 0;
            width: 0; height: 2px;
            background: var(--accent);
            transition: width .25s ease;
        }
        .main-nav a:hover { color: var(--white); }
        .main-nav a:hover::after { width: 100%; }

        .nav-cta { display: flex; align-items: center; gap: 18px; }
        .nav-email,
        .nav-phone {
            color: var(--white);
            font-weight: 600;
            font-size: .92rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .nav-email {
            padding: 8px 16px;
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: 999px;
            transition: color .2s ease, border-color .2s ease, background .2s ease;
        }
        .nav-email:hover {
            color: var(--navy-900);
            background: var(--accent);
            border-color: var(--accent);
        }
        .nav-phone:hover { color: var(--accent); }

        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            cursor: pointer;
            width: 42px; height: 42px;
            position: relative;
        }
        .nav-toggle span {
            display: block;
            width: 24px; height: 2px;
            background: var(--white);
            margin: 5px auto;
            transition: transform .3s ease, opacity .3s ease;
        }
        .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.open span:nth-child(2) { opacity: 0; }
        .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: calc(var(--header-h) + 60px) 0 80px;
            color: var(--white);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute; inset: 0;
            background-image: url("../image/hero-prds.jpg");
            background-size: cover;
            background-position: center;
        }
        .hero-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(105deg, rgba(8,24,40,.95) 0%, rgba(13,36,56,.88) 42%, rgba(18,49,76,.55) 100%);
        }
        .hero-inner { position: relative; max-width: 760px; }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: .8rem;
            font-weight: 700;
            letter-spacing: .2em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 22px;
        }
        .hero-eyebrow::before {
            content: "";
            width: 36px; height: 2px;
            background: var(--accent);
        }
        .hero h1 {
            color: var(--white);
            font-size: clamp(2rem, 5vw, 3.3rem);
            margin-bottom: 22px;
        }
        .hero h1 .accent { color: var(--accent); }
        .hero p.lead {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 36px;
            max-width: 640px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 56px; }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 28px;
            max-width: 640px;
            border-top: 1px solid rgba(255, 255, 255, .15);
            padding-top: 30px;
        }
        .hero-stat strong {
            display: block;
            font-size: 1.05rem;
            color: var(--white);
            font-weight: 700;
            margin-bottom: 4px;
        }
        .hero-stat span { font-size: .85rem; color: rgba(255, 255, 255, .6); }

        /* ============ About ============ */
        .about { padding: 100px 0; background: var(--white); }
        .about-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 64px;
            align-items: center;
        }
        .about-media { position: relative; }
        .about-media img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            width: 100%;
            aspect-ratio: 4 / 3.4;
            object-fit: cover;
        }
        .about-media .badge {
            position: absolute;
            left: -18px; bottom: 34px;
            background: var(--navy-800);
            color: var(--white);
            padding: 20px 26px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            border-left: 4px solid var(--accent);
        }
        .about-media .badge strong { display: block; font-size: 1.15rem; color: var(--white); }
        .about-media .badge span { font-size: .82rem; color: rgba(255,255,255,.7); }
        .about-body p { margin-bottom: 18px; }
        .about-features {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 16px 24px;
            margin: 28px 0 32px;
        }
        .about-feature {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: .94rem;
            color: var(--text-dark);
            font-weight: 600;
        }
        .about-feature .tick {
            flex: 0 0 22px;
            width: 22px; height: 22px;
            border-radius: 50%;
            background: rgba(245, 158, 11, .14);
            color: var(--accent-dark);
            display: grid;
            place-items: center;
            font-size: .72rem;
            font-weight: 800;
            margin-top: 3px;
        }
        .about-feature small { display: block; font-weight: 400; color: var(--text-muted); font-size: .82rem; }

        /* ============ Industries strip ============ */
        .industries {
            padding: 26px 0;
            background: var(--navy-800);
            color: rgba(255, 255, 255, .75);
        }
        .industries-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px 30px;
            justify-content: center;
            font-size: .9rem;
        }
        .industries-inner .label {
            font-weight: 700;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--accent);
            font-size: .75rem;
        }
        .industries-inner span + span::before {
            content: "•";
            color: var(--accent);
            margin-right: 30px;
        }

        /* ============ Products ============ */
        .products { padding: 100px 0; background: var(--bg-light); }
        .product-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 28px;
        }
        .product-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .product-card.featured {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
        }
        .product-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--navy-800);
        }
        .product-card.featured .product-media { aspect-ratio: auto; min-height: 100%; }
        .product-media img {
            width: 100%; height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .product-card:hover .product-media img { transform: scale(1.05); }
        .product-index {
            position: absolute;
            top: 16px; left: 16px;
            background: rgba(8, 24, 40, .82);
            color: var(--white);
            font-size: .72rem;
            font-weight: 700;
            letter-spacing: .12em;
            padding: 6px 12px;
            border-radius: 4px;
            text-transform: uppercase;
        }
        .product-body {
            padding: 26px 26px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .product-card.featured .product-body { padding: 40px 42px; justify-content: center; }
        .product-body h3 {
            font-size: 1.18rem;
            margin-bottom: 12px;
        }
        .product-card.featured .product-body h3 { font-size: 1.55rem; }
        .product-body p { font-size: .93rem; margin-bottom: 18px; }
        .product-apps {
            margin-top: auto;
            border-top: 1px dashed var(--border);
            padding-top: 16px;
        }
        .product-apps .apps-label {
            font-size: .72rem;
            font-weight: 700;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 8px;
        }
        .product-apps p { font-size: .86rem; color: var(--text-muted); margin: 0; }

        /* ============ Contact ============ */
        .contact {
            padding: 100px 0;
            background:
                linear-gradient(135deg, rgba(8,24,40,.96), rgba(18,49,76,.93)),
                url("../image/contact-plant.jpg") center/cover;
            color: var(--white);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 64px;
            align-items: center;
        }
        .contact .section-tag { color: var(--accent); }
        .contact h2 { color: var(--white); }
        .contact .section-lead { color: rgba(255,255,255,.78); margin-bottom: 30px; }
        .contact-person {
            display: flex;
            align-items: center;
            gap: 18px;
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: var(--radius);
            padding: 20px 24px;
            margin-bottom: 28px;
            max-width: 420px;
        }
        .contact-avatar {
            width: 54px; height: 54px;
            flex: 0 0 54px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--navy-900);
            display: grid;
            place-items: center;
            font-size: 1.3rem;
            font-weight: 800;
        }
        .contact-person strong { display: block; color: var(--white); font-size: 1.08rem; }
        .contact-person span { font-size: .85rem; color: rgba(255,255,255,.65); }

        .contact-cards { display: grid; gap: 18px; }
        .contact-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: background .2s ease, border-color .2s ease, transform .2s ease;
        }
        .contact-card:hover {
            background: rgba(255,255,255,.1);
            border-color: rgba(245,158,11,.6);
            transform: translateX(6px);
        }
        .contact-icon {
            width: 52px; height: 52px;
            flex: 0 0 52px;
            border-radius: 10px;
            background: rgba(245,158,11,.16);
            color: var(--accent);
            display: grid;
            place-items: center;
        }
        .contact-icon svg { width: 24px; height: 24px; }
        .contact-card .c-label {
            font-size: .74rem;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: rgba(255,255,255,.55);
            font-weight: 700;
            margin-bottom: 2px;
        }
        .contact-card .c-value { font-size: 1.12rem; font-weight: 700; color: var(--white); }
        .contact-card .c-note { font-size: .82rem; color: rgba(255,255,255,.55); }

        .contact-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 30px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--navy-900);
            color: rgba(255,255,255,.6);
            padding: 56px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .footer-brand .brand { margin-bottom: 16px; }
        .footer-brand p { font-size: .88rem; max-width: 380px; }
        .footer-col h4 {
            color: var(--white);
            font-size: .85rem;
            letter-spacing: .12em;
            text-transform: uppercase;
            margin-bottom: 18px;
        }
        .footer-col li { margin-bottom: 10px; }
        .footer-col a { font-size: .9rem; transition: color .2s ease; }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom {
            padding-top: 26px;
            text-align: center;
            font-size: .84rem;
            color: rgba(255,255,255,.5);
        }

        /* ============ Reveal animation ============ */
        .reveal {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity .7s ease, transform .7s ease;
        }
        .reveal.visible { opacity: 1; transform: none; }

        /* ============ Responsive ============ */
        @media (max-width: 960px) {
            .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
            .about-media .badge { left: 16px; }
            .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
            .product-card.featured { grid-column: span 2; grid-template-columns: 1fr; }
            .footer-top { grid-template-columns: 1fr 1fr; }
            .footer-brand { grid-column: span 2; }
            /* Compact header contacts: icon-only pills on narrow desktops/tablets */
            .nav-cta { gap: 10px; }
            .nav-email, .nav-phone { padding: 8px; }
            .nav-phone { border-radius: 50%; }
            .nav-email span, .nav-phone span { display: none; }
            .nav-email { border-radius: 50%; }
            .nav-email svg, .nav-phone svg { width: 18px; height: 18px; }
        }

        @media (max-width: 720px) {
            .nav-toggle { display: block; }
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0; right: 0;
                background: var(--navy-900);
                border-bottom: 1px solid rgba(255,255,255,.08);
                max-height: 0;
                overflow: hidden;
                transition: max-height .35s ease;
            }
            .main-nav.open { max-height: 320px; }
            .main-nav ul { flex-direction: column; gap: 0; padding: 8px 0; }
            .main-nav li { width: 100%; }
            .main-nav a {
                display: block;
                padding: 14px 24px;
            }
            .nav-phone { display: none; }
            .hero-stats { gap: 16px; }
            .product-grid { grid-template-columns: 1fr; }
            .product-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
            .product-card.featured .product-media { aspect-ratio: 4/3; min-height: 0; }
            .footer-top { grid-template-columns: 1fr; }
            .footer-brand { grid-column: span 1; }
            .industries-inner span + span::before { margin-right: 14px; }
        }