/* Greatsea site — zero external dependencies */
:root{
  --bg:#f5f6f4; --surface:#ffffff; --surface-2:#eef1ee; --ink:#11161a; --ink-2:#414b54;
  --muted:#6f7a84; --line:#dfe4e2; --line-2:#cbd3d0; --accent:#0b4f8a; --accent-2:#c46a12;
  --accent-soft:#e7eff7; --radius:14px; --max:1180px;
  --shadow:0 1px 0 rgba(17,22,26,.04), 0 12px 30px rgba(17,22,26,.06);
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0d1114; --surface:#141a1e; --surface-2:#1a2126; --ink:#eef2f4; --ink-2:#b7c1c8;
  --muted:#8b969e; --line:#252e34; --line-2:#334048; --accent:#6db3f2; --accent-2:#f0a35e;
  --accent-soft:#12283a; --shadow:0 1px 0 rgba(0,0,0,.4), 0 18px 40px rgba(0,0,0,.3);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,
  "Helvetica Neue",Arial,sans-serif;-webkit-text-size-adjust:100%;line-height:1.6}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;line-height:1.12;letter-spacing:-.022em;text-wrap:balance;font-weight:700}
h1{font-size:clamp(34px,5.4vw,62px)}
h2{font-size:clamp(24px,3.2vw,36px)}
h3{font-size:18px}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:24px}
@media (max-width:560px){.wrap{padding-inline:16px}}
.narrow{max-width:760px;margin-inline:auto}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--bg);padding:10px 14px;z-index:99}
.skip:focus{left:12px;top:12px}
:focus-visible{outline:3px solid var(--accent-2);outline-offset:3px;border-radius:4px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;min-height:68px}
.brand{display:inline-flex;align-items:center;font-weight:800;letter-spacing:-.02em;font-size:18px;
  white-space:nowrap}
.brand img{height:24px;width:auto;display:block}
.site-footer .brand img{height:26px}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14px;color:var(--ink-2)}
.nav-links>a:hover,.menu summary:hover{color:var(--accent)}
.nav-links>a.on{color:var(--accent);font-weight:650}
.nav-cta{margin-left:auto}
.lang-menu .menu-panel{left:auto;right:0;min-width:170px}
@media (max-width:900px){.lang-menu{margin-left:auto}}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px}
.menu summary::-webkit-details-marker{display:none}
.menu summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-1px);opacity:.7}
.menu[open] summary{color:var(--accent)}
.menu-panel{position:absolute;top:calc(100% + 14px);left:-18px;background:var(--surface);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:8px;min-width:300px;
  display:grid;gap:2px}
.menu-panel a{padding:9px 12px;border-radius:8px;font-size:13.5px;white-space:nowrap}
.menu-panel a:hover{background:var(--accent-soft);color:var(--accent)}
@media (max-width:900px){
  .nav-links{gap:16px;font-size:13px}
  .nav .nav-cta{display:none}
}
@media (max-width:680px){
  .nav{flex-wrap:wrap;gap:10px 16px;padding-block:10px}
  .nav-links{width:100%;justify-content:space-between;gap:10px;order:3}
  .menu-panel{left:0;min-width:260px}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;
  border-radius:9px;font-size:14px;font-weight:650;border:1px solid var(--line-2);
  background:var(--surface);color:var(--ink);white-space:nowrap;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn.full{width:100%;margin-top:16px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}

/* hero */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 500px at 78% 20%,var(--accent-soft),transparent 60%),var(--bg);
  border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  padding-block:clamp(56px,8vw,104px)}
.hero h1{margin-top:18px;max-width:16ch}
.lede{font-size:clamp(16px,1.6vw,19px);color:var(--ink-2);max-width:60ch;margin-top:22px}
.hero p{max-width:58ch}
.eyebrow{font-size:11.5px;font-weight:750;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin:44px 0 0;
  padding-top:22px;border-top:1px solid var(--line)}
.facts div{min-width:0}
.facts dt{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.facts dd{margin:6px 0 0;font-size:clamp(16px,1.6vw,20px);font-weight:700}
.hero-visual{margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow)}
.hero-img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.hero-visual figcaption,.factory-visual figcaption,.product-visual figcaption{
  font-size:12px;color:var(--muted);padding:8px 14px;border-top:1px solid var(--line)}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:28px}.hero-visual{max-width:420px}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* sections */
.section{padding-block:clamp(52px,7vw,88px);border-bottom:1px solid var(--line)}
.section.alt{background:var(--surface-2)}
.section:last-of-type{border-bottom:0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{margin-top:12px}
.sub{color:var(--ink-2);font-size:16px;margin-top:14px}
.page-hero{padding-block:clamp(56px,8vw,96px);border-bottom:1px solid var(--line);background:
  radial-gradient(800px 400px at 85% 10%,var(--accent-soft),transparent 60%),var(--bg)}
.page-hero h1{margin-top:16px;max-width:18ch}
.article-hero{padding-block:clamp(52px,7vw,84px);border-bottom:1px solid var(--line)}
.article-media{padding-top:34px}
.article-figure{margin:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface)}
.article-img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.article-figure figcaption{font-size:12px;color:var(--muted);padding:8px 14px;border-top:1px solid var(--line)}
.article-hero h1{margin-top:14px;max-width:22ch}

/* spec table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table.spec{border-collapse:collapse;width:100%;font-size:14px}
table.spec th,table.spec td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);
  vertical-align:top}
table.spec th{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  font-weight:750;background:var(--surface-2)}
table.spec tbody tr:last-child th,table.spec tbody tr:last-child td{border-bottom:0}
table.spec td{color:var(--ink-2)}
table.spec td.n{font-variant-numeric:tabular-nums;color:var(--ink)}
table.spec td.req{color:var(--muted);font-style:italic}
table.spec.spec-wide{min-width:820px}
table.spec.spec-wide th,table.spec.spec-wide td{white-space:normal}
table.spec.spec-wide td.prod{font-weight:700;color:var(--ink);white-space:normal;min-width:220px}
.callout{margin-top:18px;background:var(--accent-soft);color:var(--ink);border-radius:12px;
  padding:15px 18px;font-size:14.5px}
.callout b{color:var(--accent)}
.fine{color:var(--muted);font-size:13px;margin-top:14px}
.muted{color:var(--muted)}
.scroll-hint{display:none;color:var(--muted);font-size:12.5px;margin-top:8px}
@media (max-width:820px){.scroll-hint{display:block}}

/* cards */
.grid{display:grid;gap:18px}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:980px){.grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.grid.three{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.card-visual{height:180px;overflow:hidden;background:var(--surface-2);
  border-bottom:1px solid var(--line)}
.card-img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1}
.tag{font-size:11px;font-weight:750;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.card h3{font-size:17px}
.card p{color:var(--ink-2);font-size:13.5px;line-height:1.6}
.more{margin-top:auto;color:var(--accent);font-size:13px;font-weight:700}

/* breadth */
.breadth{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 30px;font-size:14.5px}
.breadth a{display:block;padding:14px 0;border-bottom:1px solid var(--line);color:var(--ink-2)}
.breadth a:hover{color:var(--accent)}
.breadth span{display:block;color:var(--ink);font-weight:650}
.breadth i{display:block;font-style:normal;color:var(--muted);font-size:12.5px;margin-top:3px}
@media (max-width:820px){.breadth{grid-template-columns:1fr}}

/* factory */
.factory{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.factory-visual{margin:0;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--surface)}
.factory-img{width:100%;height:auto;aspect-ratio:2/1;object-fit:cover}
.cap-list{list-style:none;margin:20px 0 0;padding:0;font-size:14.5px}
.cap-list li{display:flex;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);color:var(--ink-2)}
.cap-list b{min-width:110px;color:var(--ink);font-weight:700}
@media (max-width:860px){.factory{grid-template-columns:1fr}}

/* cta band */
.cta-band{display:grid;grid-template-columns:1.5fr auto;gap:28px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:clamp(26px,4vw,44px)}
.cta-band h2{margin-top:12px}
.cta-band p{color:var(--ink-2);margin-top:12px;max-width:62ch}
@media (max-width:760px){.cta-band{grid-template-columns:1fr}}

/* product page */
.product-hero{padding-block:clamp(52px,7vw,88px);border-bottom:1px solid var(--line);background:
  radial-gradient(800px 420px at 82% 15%,var(--accent-soft),transparent 62%),var(--bg)}
.product-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center}
.product-hero h1{margin-top:14px;max-width:18ch}
.product-hero p{color:var(--ink-2);max-width:62ch;margin-top:18px}
.product-visual{margin:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:var(--surface)}
.product-img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
@media (max-width:860px){.product-grid{grid-template-columns:1fr}}
.two-col{display:grid;grid-template-columns:1.35fr .65fr;gap:clamp(28px,5vw,64px);align-items:start}
.prose h2{margin-top:38px}
.prose h2:first-child{margin-top:0}
.prose p{color:var(--ink-2);margin-top:14px;max-width:68ch}
.prose .apps{margin-top:16px}
.about-figure{margin:26px 0 0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.about-img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.about-figure figcaption{font-size:12px;color:var(--muted);padding:8px 12px;border-top:1px solid var(--line)}
.apps{margin:0;padding:0;list-style:none}
.apps li{padding:10px 0 10px 22px;border-bottom:1px solid var(--line);color:var(--ink-2);
  position:relative;font-size:14.5px}
.apps li::before{content:"";position:absolute;left:0;top:18px;width:7px;height:7px;border-radius:50%;
  background:var(--accent-2)}
.side{position:sticky;top:92px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.side-card table.spec{font-size:13.5px}
.side-card table.spec th{width:42%;background:transparent;vertical-align:top}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{display:inline-block;padding:8px 12px;border:1px solid var(--line-2);border-radius:999px;
  font-size:12.5px;color:var(--ink-2);background:var(--surface)}
.pill:hover{border-color:var(--accent);color:var(--accent)}
@media (max-width:900px){.two-col{grid-template-columns:1fr}.side{position:static;order:-1}}

/* applications */
.app-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.app-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden}
.app-card .thumb{height:170px;overflow:hidden;border-bottom:1px solid var(--line)}
.app-card .thumb img{width:100%;height:100%;object-fit:cover}
.app-card h3{margin:20px 24px 10px}
.app-card p{color:var(--ink-2);font-size:14px;padding-inline:24px}
.app-card .pills{margin-top:18px;padding:0 24px 24px}

/* news */
.news-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.news-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;gap:10px;transition:transform .18s ease}
.news-card:hover{transform:translateY(-2px)}
.news-card .thumb{height:160px;overflow:hidden;border-bottom:1px solid var(--line)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .tag{padding:18px 24px 0}
.news-card h3,.news-card p,.news-card .more{padding-inline:24px}
.news-card .more{padding-bottom:24px}
.news-card p{color:var(--ink-2);font-size:14px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.contact-card h2{font-size:22px;margin-bottom:14px}
.contact-card p{color:var(--ink-2);margin-top:12px}
.contact-lines{display:flex;flex-direction:column;gap:6px;margin-top:16px}
.contact-lines a{color:var(--accent);font-weight:650}
@media (max-width:760px){.contact-grid{grid-template-columns:1fr}}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--surface-2);padding-block:52px 28px;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.foot-grid b{display:block;color:var(--ink);font-size:13px;margin-bottom:12px}
.foot-grid a{display:block;color:var(--ink-2);padding:4px 0}
.foot-grid a:hover{color:var(--accent)}
.foot-note{color:var(--muted);margin-top:10px;line-height:1.55}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);
  margin-top:40px;padding-top:20px;color:var(--muted);font-size:12.5px;flex-wrap:wrap}
.foot-end{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.theme-toggle{font:inherit;font-size:12.5px;color:var(--muted);background:transparent;
  border:1px solid var(--line-2);border-radius:999px;padding:5px 12px;cursor:pointer}
.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}