:root {
    --ink: #071329;
    --muted: #4b5f7b;
    --line: #cfe0f5;
    --soft: #f2f7fd;
    --blue: #1d4ed8;
    --blue-dark: #173eaa;
    --navy: #111f49;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: #fff;
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(100% - 32px, 1220px); margin-inline: auto; }
.skip-link {
    position: fixed;
    left: 16px;
    top: -80px;
    z-index: 100;
    background: #fff;
    padding: 12px 16px;
    color: var(--blue);
    font-weight: 900;
}
.skip-link:focus { top: 12px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid #dbe7f5;
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(12px);
}
.header-row {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.brand {
    width: min(240px, 58vw);
    height: 62px;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.brand img { width: 100%; height: auto; }
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    color: #334155;
    font-size: 14px;
    font-weight: 850;
    white-space: nowrap;
}
.desktop-nav a:hover { color: var(--blue); }
.header-cta,
.button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 12px 20px;
    text-align: center;
    font-weight: 900;
    line-height: 1.2;
}
.header-cta,
.button-primary {
    color: #fff;
    background: var(--blue);
    box-shadow: 0 14px 28px rgba(29,78,216,.2);
}
.header-cta:hover,
.button-primary:hover { background: var(--blue-dark); }
.button-secondary {
    color: var(--blue-dark);
    border-color: #a9c8f5;
    background: #fff;
}
.button-secondary:hover { background: #edf5ff; }
.menu-button {
    width: 46px;
    height: 46px;
    display: none;
    align-items: center;
    justify-content: center;
    border: 1px solid #d5e1ef;
    border-radius: 8px;
    color: #263b55;
    background: #fff;
}
.menu-button svg { width: 24px; height: 24px; }
.mobile-nav { display: none; border-top: 1px solid #e2e8f0; background: #fff; }
.mobile-nav.is-open { display: block; }
.mobile-nav .wrap { display: grid; gap: 4px; padding-block: 12px; }
.mobile-nav a { border-radius: 6px; padding: 12px; font-weight: 850; }
.mobile-nav a:hover { background: #eff6ff; color: var(--blue); }

.product-hero {
    position: relative;
    min-height: 660px;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: var(--soft);
}
.product-hero::before {
    content: "";
    position: absolute;
    inset: 0 48% 0 0;
    background: var(--navy);
}
.hero-grid {
    position: relative;
    min-height: 660px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(410px, .88fr);
    align-items: center;
    gap: 50px;
    padding-block: 62px;
}
.hero-copy { color: #fff; }
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 22px;
    color: #b8cff5;
    font-size: 13px;
    font-weight: 800;
}
.breadcrumbs a:hover { color: #fff; }
.eyebrow,
.kicker {
    margin: 0;
    color: #82b7ff;
    font-size: 13px;
    font-weight: 950;
    letter-spacing: .18em;
    text-transform: uppercase;
}
.product-hero h1 {
    max-width: 760px;
    margin: 16px 0 0;
    color: #fff;
    font-size: clamp(42px, 5.5vw, 72px);
    line-height: 1;
    font-weight: 1000;
    letter-spacing: 0;
}
.hero-lead {
    max-width: 690px;
    margin: 24px 0 0;
    color: #d9e7fb;
    font-size: 19px;
    line-height: 1.7;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-image {
    position: relative;
    min-height: 540px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 22px;
}
.hero-image::after {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    bottom: 24px;
    height: 28px;
    border-radius: 50%;
    background: rgba(15,23,42,.16);
    filter: blur(18px);
}
.hero-image img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 520px;
    object-fit: contain;
    filter: drop-shadow(0 24px 24px rgba(15,23,42,.2));
}

.metrics {
    border-bottom: 1px solid var(--line);
    background: #fff;
}
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
}
.metric {
    min-height: 138px;
    padding: 28px 24px;
    border-right: 1px solid var(--line);
}
.metric:last-child { border-right: 0; }
.metric small {
    display: block;
    color: var(--blue);
    font-size: 12px;
    font-weight: 950;
    letter-spacing: .15em;
    text-transform: uppercase;
}
.metric strong {
    display: block;
    margin-top: 8px;
    color: var(--ink);
    font-size: clamp(24px, 2.4vw, 34px);
    line-height: 1.1;
    font-weight: 1000;
}

.section { padding: 82px 0; }
.section-soft { background: var(--soft); }
.section-dark { color: #fff; background: #071329; }
.section h2 {
    max-width: 880px;
    margin: 12px 0 0;
    color: var(--ink);
    font-size: clamp(34px, 4vw, 54px);
    line-height: 1.06;
    font-weight: 1000;
    letter-spacing: 0;
}
.section-dark h2 { color: #fff; }
.lead {
    max-width: 850px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.75;
}
.section-dark .lead { color: #c8d8ed; }
.two-column {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 54px;
    align-items: start;
}
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 16px;
}
.feature {
    min-height: 170px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    padding: 24px;
    box-shadow: 0 14px 34px rgba(15,23,42,.06);
}
.feature strong { display: block; font-size: 21px; line-height: 1.2; }
.feature p { margin: 10px 0 0; color: var(--muted); line-height: 1.65; }
.spec-layout {
    display: grid;
    grid-template-columns: minmax(0,.86fr) minmax(0,1.14fr);
    gap: 44px;
    align-items: start;
}
.spec-table {
    width: 100%;
    overflow: hidden;
    border: 1px solid #28406a;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 8px;
    background: #0e1d39;
}
.spec-table th,
.spec-table td {
    border-bottom: 1px solid #28406a;
    padding: 17px 18px;
    text-align: left;
    vertical-align: top;
}
.spec-table tr:last-child th,
.spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 48%; color: #a9c8f5; font-size: 14px; }
.spec-table td { color: #fff; font-weight: 900; }
.checklist {
    display: grid;
    gap: 12px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}
.checklist li {
    position: relative;
    padding-left: 34px;
    color: #d7e4f5;
    line-height: 1.6;
}
.checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    border-radius: 6px;
    color: #fff;
    background: var(--blue);
    font-size: 14px;
    font-weight: 1000;
}
.applications {
    display: grid;
    grid-template-columns: repeat(3,minmax(0,1fr));
    gap: 18px;
    margin-top: 30px;
}
.application {
    border-top: 4px solid var(--blue);
    border-radius: 0 0 8px 8px;
    background: #fff;
    padding: 25px;
    box-shadow: 0 16px 36px rgba(15,23,42,.07);
}
.application h3 { margin: 0; font-size: 23px; line-height: 1.2; }
.application p { margin: 12px 0 0; color: var(--muted); line-height: 1.65; }
.faq { display: grid; gap: 12px; margin-top: 28px; }
.faq details { border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.faq summary { cursor: pointer; padding: 20px 22px; color: var(--ink); font-weight: 950; }
.faq div { border-top: 1px solid var(--line); padding: 18px 22px; color: var(--muted); line-height: 1.7; }

.cta-section { padding: 72px 0; color: #fff; background: var(--blue); }
.cta-row { display: flex; align-items: center; justify-content: space-between; gap: 34px; }
.cta-section h2 { margin: 0; max-width: 760px; font-size: clamp(34px,4vw,54px); line-height: 1.06; }
.cta-section p { max-width: 740px; margin: 16px 0 0; color: #dbeafe; font-size: 18px; line-height: 1.7; }
.cta-actions { min-width: 250px; display: grid; gap: 10px; }
.cta-section .button-secondary { border-color: #fff; }
.cta-section .button-primary { background: #0b1b42; box-shadow: none; }
.cta-section .button-primary:hover { background: #071329; }
.footer { padding: 34px 0; color: #94a3b8; background: #020617; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer img { width: 210px; height: auto; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer a:hover { color: #fff; }
.mobile-sticky { display: none; }

@media (max-width: 1020px) {
    .desktop-nav { display: none; }
    .menu-button { display: inline-flex; }
    .product-hero::before { inset: 0; }
    .hero-grid { grid-template-columns: 1fr; padding-bottom: 0; }
    .hero-image { min-height: 480px; margin-inline: -16px; background: #fff; }
    .hero-image img { height: 440px; }
    .metrics-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .metric:nth-child(2) { border-right: 0; }
    .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    .two-column,
    .spec-layout { grid-template-columns: 1fr; }
    .applications { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 680px) {
    body { padding-bottom: 72px; }
    .wrap { width: min(100% - 28px,1220px); }
    .header-row { min-height: 76px; }
    .brand { height: 56px; width: 220px; }
    .header-cta { display: none; }
    .product-hero,
    .hero-grid { min-height: auto; }
    .hero-grid { gap: 28px; padding-top: 44px; }
    .product-hero h1 { font-size: 40px; }
    .hero-lead { font-size: 17px; }
    .hero-actions { display: grid; }
    .hero-image { min-height: 390px; }
    .hero-image img { height: 360px; }
    .metrics-grid,
    .feature-list,
    .applications { grid-template-columns: 1fr; }
    .metric {
        min-height: 112px;
        border-right: 0;
        border-bottom: 1px solid var(--line);
        padding: 22px 18px;
    }
    .metric:last-child { border-bottom: 0; }
    .section { padding: 58px 0; }
    .feature { min-height: 0; }
    .cta-row,
    .footer-row { align-items: flex-start; flex-direction: column; }
    .cta-actions { width: 100%; min-width: 0; }
    .footer-links { display: grid; gap: 10px; }
    .mobile-sticky {
        position: fixed;
        z-index: 70;
        left: 0;
        right: 0;
        bottom: 0;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        border-top: 1px solid var(--line);
        background: rgba(255,255,255,.97);
        padding: 9px 12px;
        box-shadow: 0 -12px 26px rgba(15,23,42,.12);
        backdrop-filter: blur(10px);
    }
    .mobile-sticky .button { min-height: 44px; padding: 9px; font-size: 14px; }
}

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