:root {
    --ink: #142425;
    --muted: #5d6f70;
    --paper: #f7faf8;
    --surface: #ffffff;
    --line: #d9e4e1;
    --teal: #0f766e;
    --teal-dark: #0b4f4a;
    --bluegray: #28445b;
    --aqua: #bfe8e1;
    --amber: #d89b42;
    --shadow: 0 18px 50px rgba(20, 36, 37, .12);
    --radius: 8px;
    --s1: .25rem;
    --s2: .5rem;
    --s3: .75rem;
    --s4: 1rem;
    --s5: 1.5rem;
    --s6: 2rem;
    --s7: 3rem;
    --s8: 4.5rem;
    --container: min(1180px, calc(100% - 40px));
    --font: Tahoma, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.75;
    font-size: 16px;
}
body::selection { background: var(--aqua); color: var(--ink); }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
.skip-link { position: fixed; inset-block-start: 8px; inset-inline-start: 8px; z-index: 30; transform: translateY(-140%); background: var(--ink); color: white; padding: var(--s3) var(--s4); border-radius: var(--radius); }
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--paper) 90%, white);
    border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
    backdrop-filter: blur(14px);
}
.nav-shell {
    width: var(--container);
    min-height: 76px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s5);
}
.brand { display: inline-flex; align-items: center; gap: var(--s3); min-width: 210px; }
.brand-mark { width: 44px; height: 44px; display: grid; place-items: center; color: var(--teal); border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.brand strong { display: block; font-size: 1.15rem; line-height: 1.2; }
.brand small { display: block; color: var(--muted); font-size: .78rem; margin-block-start: var(--s1); }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: var(--s5); }
.desktop-nav a { color: var(--muted); font-weight: 700; font-size: .94rem; padding: var(--s2) 0; border-bottom: 2px solid transparent; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--teal-dark); border-color: var(--teal); }
.nav-cta, .btn, .mini-btn {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s2);
    border-radius: var(--radius);
    border: 1px solid var(--teal);
    padding: .78rem 1.1rem;
    font-weight: 800;
    white-space: nowrap;
}
.nav-cta { color: white; background: var(--teal-dark); box-shadow: 0 10px 25px rgba(15, 118, 110, .18); }
.nav-cta svg { width: 19px; height: 19px; }
.menu-toggle { display: none; width: 48px; height: 48px; border-radius: var(--radius); border: 1px solid var(--line); background: white; color: var(--ink); place-items: center; }
.mobile-nav { width: var(--container); margin: 0 auto var(--s4); padding: var(--s4); background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.mobile-nav a { display: block; padding: var(--s3) var(--s2); color: var(--muted); font-weight: 800; border-bottom: 1px solid var(--line); }
.mobile-nav a:last-child { border-bottom: 0; }

.hero { min-height: calc(100vh - 76px); position: relative; isolation: isolate; display: grid; align-items: end; }
.editorial-hero { background: var(--ink); }
.editorial-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; opacity: .92; }
.editorial-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(90deg, rgba(20, 36, 37, .08), rgba(20, 36, 37, .58) 54%, rgba(20, 36, 37, .82)),
        linear-gradient(0deg, rgba(20, 36, 37, .64), transparent 44%);
}
.editorial-hero::before {
    content: "";
    position: absolute;
    inset: auto max(20px, calc((100% - 1180px) / 2)) var(--s7) auto;
    width: min(33vw, 360px);
    height: 1px;
    z-index: 0;
    background: rgba(191, 232, 225, .62);
    box-shadow: 0 -76px 0 rgba(191, 232, 225, .24), 0 -152px 0 rgba(191, 232, 225, .16);
}
.hero-overlay { position: relative; z-index: 1; width: var(--container); margin: 0 auto; padding: clamp(72px, 12vh, 130px) 0 var(--s7); color: white; }
.eyebrow, .kicker {
    margin: 0 0 var(--s3);
    color: var(--aqua);
    font-weight: 900;
    letter-spacing: 0;
    font-size: .92rem;
}
.kicker { color: var(--teal); }
h1, h2, h3, p { margin-block-start: 0; }
h1 { font-size: clamp(2.1rem, 6vw, 5.4rem); line-height: 1.08; margin-block-end: var(--s5); max-width: 920px; font-weight: 900; }
h2 { font-size: clamp(1.65rem, 3vw, 3rem); line-height: 1.2; margin-block-end: var(--s4); font-weight: 900; }
h3 { font-size: 1.18rem; line-height: 1.45; margin-block-end: var(--s3); }
.hero-lead { max-width: 720px; color: #e7f1ef; font-size: clamp(1rem, 2vw, 1.22rem); margin-block-end: var(--s5); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s3); margin-block-end: var(--s6); }
.btn.primary { color: white; background: var(--teal); border-color: var(--teal); }
.btn.ghost { color: white; background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.38); }
.hero-stats { display: flex; flex-wrap: wrap; gap: var(--s4); margin: 0; }
.hero-stats div { min-width: 160px; padding: var(--s4); background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.28); border-radius: var(--radius); backdrop-filter: blur(10px); }
.hero-stats dt { font-size: 1.75rem; font-weight: 900; color: white; }
.hero-stats dd { margin: var(--s1) 0 0; color: #dbe8e6; }

.section { width: var(--container); margin-inline: auto; padding-block: var(--s8); }
.section + .section { padding-block-start: 0; }
.intro-split { display: grid; grid-template-columns: minmax(260px, .9fr) minmax(320px, 1.1fr); gap: var(--s7); align-items: start; border-bottom: 1px solid var(--line); }
.prose-large { font-size: 1.22rem; color: var(--bluegray); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: var(--s5); margin-block-end: var(--s5); }
.text-link { color: var(--teal-dark); font-weight: 900; border-bottom: 2px solid var(--amber); padding-block-end: var(--s1); }
.product-rail, .case-rail {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(300px, 390px);
    gap: var(--s5);
    overflow-x: auto;
    padding-block-end: var(--s4);
    scroll-snap-type: inline mandatory;
    scrollbar-color: var(--teal) transparent;
}
.product-rail.wide { grid-auto-columns: minmax(320px, 420px); }
.rail-card, .case-card, .application-grid article, .spec-card, .article-list article, .admin-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 8px 28px rgba(20, 36, 37, .06);
}
.rail-card { min-height: 100%; overflow: hidden; scroll-snap-align: start; display: flex; flex-direction: column; }
.media-frame { aspect-ratio: 4 / 3; overflow: hidden; background: #d7e9e5; }
.media-frame img, .case-card img, .detail-hero img, .article-thumb img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: var(--s5); display: flex; flex-direction: column; gap: var(--s3); flex: 1; }
.chip { display: inline-flex; align-self: flex-start; padding: .35rem .65rem; border-radius: 999px; background: #e8f4f1; color: var(--teal-dark); font-size: .82rem; font-weight: 900; }
.card-body p, .case-card p, .article-list p, .application-grid p { color: var(--muted); }
.card-action { margin-block-start: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--s3); padding-block-start: var(--s3); border-top: 1px solid var(--line); }
.card-action strong { color: var(--bluegray); font-size: .92rem; }
.mini-btn { min-height: 40px; padding: .55rem .85rem; color: var(--teal-dark); background: white; }
.trust-band { display: grid; grid-template-columns: .85fr 1.15fr; gap: var(--s6); align-items: start; background: #eaf3f0; width: 100%; padding-inline: max(20px, calc((100% - 1180px) / 2)); }
.process-list { list-style: none; display: grid; gap: var(--s4); padding: 0; margin: 0; }
.process-list li { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s5); display: grid; gap: var(--s2); }
.process-list span { color: var(--amber); font-weight: 900; font-size: .9rem; }
.process-list strong { font-size: 1.15rem; }
.process-list p { margin: 0; color: var(--muted); }
.case-card { padding: var(--s3); display: grid; grid-template-rows: 210px 1fr; gap: var(--s4); scroll-snap-align: start; }
.case-card img { border-radius: 6px; background: #d7e9e5; }
.case-rail.wrap { grid-auto-flow: initial; grid-template-columns: repeat(3, 1fr); overflow: visible; }
.article-list { display: grid; gap: var(--s4); }
.article-list article { padding: var(--s4); display: grid; grid-template-columns: 160px 1fr; gap: var(--s4); align-items: stretch; }
.article-list.large article { grid-template-columns: 220px 1fr; align-items: stretch; column-gap: var(--s5); }
.article-thumb { display: block; min-height: 128px; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 6px; background: #d7e9e5; }
.article-list time, .article-detail time, .detail-hero time { color: var(--teal); font-weight: 900; display: inline-block; margin-block-end: var(--s3); }
.cta-panel { background: var(--bluegray); color: white; border-radius: var(--radius); padding: var(--s7); display: flex; align-items: center; justify-content: space-between; gap: var(--s6); margin-block-end: var(--s8); }
.cta-panel .kicker { color: var(--aqua); }
.cta-panel h2 { max-width: 780px; margin: 0; }

.page-hero, .detail-hero { width: var(--container); margin-inline: auto; padding-block: var(--s8) var(--s7); }
.compact-hero { padding-block-start: calc(var(--s8) + var(--s4)); }
.compact-hero p:not(.eyebrow), .detail-hero p { max-width: 780px; color: var(--muted); font-size: 1.12rem; }
.detail-hero { display: grid; grid-template-columns: 1fr minmax(300px, 480px); gap: var(--s7); align-items: center; }
.detail-hero img { aspect-ratio: 4 / 3; border-radius: var(--radius); box-shadow: var(--shadow); background: #d7e9e5; }
.detail-content { display: grid; grid-template-columns: 1fr 320px; gap: var(--s6); align-items: start; padding-block-start: 0; }
.prose { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s6); color: var(--bluegray); }
.spec-card { padding: var(--s5); }
.application-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s5); }
.application-grid article { padding: var(--s5); min-height: 220px; }
.application-grid svg { width: 42px; height: 42px; color: var(--teal); margin-block-end: var(--s4); }
.specs-table-wrap { overflow-x: auto; }
.specs-table, .admin-table { width: 100%; border-collapse: collapse; background: white; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
th, td { padding: var(--s4); text-align: right; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #eaf3f0; color: var(--teal-dark); }
.faq-list { display: grid; gap: var(--s3); max-width: 900px; }
details { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s4) var(--s5); }
summary { cursor: pointer; font-weight: 900; }
details p { color: var(--muted); margin: var(--s3) 0 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 340px; gap: var(--s6); align-items: start; padding-block-start: 0; }
.contact-form, .admin-form { display: grid; gap: var(--s4); background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s5); }
label { display: grid; gap: var(--s2); font-weight: 900; color: var(--bluegray); }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); padding: .85rem 1rem; background: #fbfdfc; color: var(--ink); }
input:focus, textarea:focus, a:focus-visible, button:focus-visible { outline: 3px solid color-mix(in srgb, var(--amber) 55%, transparent); outline-offset: 3px; }
.success { color: #12684d; background: #e8f6ee; border: 1px solid #b9dfca; padding: var(--s3); border-radius: var(--radius); }
.error { color: #8f1f1f; background: #faeaea; border: 1px solid #f0bbbb; padding: var(--s3); border-radius: var(--radius); }

.site-footer { background: #10292b; color: white; margin-block-start: var(--s7); }
.footer-shell { width: var(--container); margin-inline: auto; padding-block: var(--s7); display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: var(--s7); }
.footer-brand p, .footer-contact { color: #c9d8d6; }
.footer-links { display: grid; gap: var(--s3); }
.footer-links a { color: #e7f1ef; }
.footer-contact { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--s3); }
.footer-bottom { width: var(--container); margin-inline: auto; border-top: 1px solid rgba(255,255,255,.15); padding: var(--s4) 0; display: flex; justify-content: space-between; gap: var(--s4); color: #c9d8d6; }

.admin-body { background: #eef5f3; }
.admin-shell { width: min(1040px, calc(100% - 32px)); margin: var(--s6) auto; }
.admin-nav { display: flex; flex-wrap: wrap; gap: var(--s3); margin-block-end: var(--s5); }
.admin-nav a { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s3) var(--s4); font-weight: 900; }
.admin-card { padding: var(--s5); }
.admin-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4); margin-block: var(--s5); }
.admin-metrics div { border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s4); background: #f7faf8; }
.admin-metrics strong { display: block; font-size: 2rem; color: var(--teal); }
.admin-table-wrap { overflow-x: auto; margin-block-start: var(--s4); }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media (max-width: 900px) {
    .desktop-nav, .nav-cta { display: none; }
    .menu-toggle { display: grid; }
    .nav-shell { min-height: 68px; }
    .hero { min-height: auto; }
    .hero-overlay { padding-block: 92px var(--s6); }
    .intro-split, .trust-band, .detail-hero, .detail-content, .contact-grid, .footer-shell { grid-template-columns: 1fr; }
    .application-grid, .case-rail.wrap { grid-template-columns: repeat(2, 1fr); }
    .cta-panel { flex-direction: column; align-items: stretch; padding: var(--s5); }
    .cta-panel .btn { width: 100%; }
}

@media (max-width: 768px) {
    :root { --container: min(100% - 28px, 1180px); --s8: 3rem; --s7: 2.25rem; }
    body { font-size: 15.5px; overflow-x: hidden; }
    .brand { min-width: 0; }
    .brand small { display: none; }
    .brand-mark { width: 40px; height: 40px; }
    .editorial-hero::after { background: linear-gradient(0deg, rgba(20, 36, 37, .82), rgba(20, 36, 37, .22)); }
    .editorial-hero::before { width: 42vw; inset-inline-end: 14px; opacity: .75; }
    h1 { font-size: clamp(2rem, 11vw, 3.1rem); line-height: 1.14; }
    h2 { font-size: clamp(1.45rem, 7vw, 2.1rem); }
    .hero-stats { display: grid; grid-template-columns: 1fr; }
    .hero-stats div { min-width: 0; }
    .section-head { align-items: start; flex-direction: column; gap: var(--s3); }
    .product-rail, .case-rail, .product-rail.wide { grid-auto-columns: minmax(282px, 84vw); gap: var(--s4); }
    .card-action { flex-direction: column; align-items: stretch; }
    .mini-btn, .card-action .mini-btn { width: 100%; }
    .case-card { grid-template-rows: 180px 1fr; }
    .application-grid { grid-template-columns: 1fr; }
    .article-list.large article { grid-template-columns: 1fr; }
    .article-list article { grid-template-columns: 1fr; padding: var(--s4); }
    .article-thumb { min-height: 176px; }
    .footer-bottom { flex-direction: column; }
    .admin-metrics { grid-template-columns: repeat(2, 1fr); }
    .admin-table, .admin-table thead, .admin-table tbody, .admin-table tr, .admin-table th, .admin-table td { display: block; }
    .admin-table thead { display: none; }
    .admin-table tr { border-bottom: 1px solid var(--line); padding: var(--s3); }
    .admin-table td { border: 0; padding: var(--s2); display: grid; grid-template-columns: 92px 1fr; gap: var(--s3); text-align: start; }
    .admin-table td::before { content: attr(data-label); color: var(--teal-dark); font-weight: 900; }
}

@media (max-width: 430px) {
    .nav-shell { gap: var(--s2); }
    .brand strong { font-size: 1rem; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; }
    .prose, .contact-form, .admin-card { padding: var(--s4); }
    .admin-metrics { grid-template-columns: 1fr; }
}