:root{
  --ink:#23303c; --ink2:#3a4a58; --primary:#185b80; --primary-d:#0f4461;
  --paper:#ffffff; --bg:#f4f6f8; --line:#d8dee4; --muted:#66727e;
  --ok:#2e7d32; --err:#b3362b; --gold:#b58a2c;
  --font-mono:ui-monospace,"Cascadia Mono",Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;font-weight:700}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:8px 14px;z-index:100}
.mono{font-family:var(--font-mono)}

/* ---------- topbar ---------- */
.topbar{background:var(--ink);color:#cfd8e0;font-size:12.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:16px;flex-wrap:wrap;padding-top:4px;padding-bottom:4px}
.topbar__facts{display:flex;gap:18px;flex-wrap:wrap;letter-spacing:.03em}
.topbar__facts span{position:relative;padding-left:12px}
.topbar__facts span::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:5px;background:var(--primary)}
.topbar__contact{display:flex;gap:16px}
.topbar__contact a{color:#e8edf2;font-family:var(--font-mono);font-size:12px}

/* ---------- masthead ---------- */
.masthead{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.masthead__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none!important}
.brand__mark{width:40px;height:40px;flex:none}
.brand__name{display:block;font-weight:800;letter-spacing:.16em;font-size:1.18rem;color:var(--ink)}
.brand__sub{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.nav{display:flex;gap:26px;font-size:.95rem;font-weight:500}
.nav a{color:var(--ink2);text-decoration:none;padding:6px 2px;border-bottom:2px solid transparent}
.nav a:hover{color:var(--primary)}
.nav a[aria-current="page"]{color:var(--primary);border-bottom-color:var(--primary)}
.masthead__cta{display:flex;align-items:center;gap:12px}
.navtoggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;width:42px;height:38px;cursor:pointer;position:relative}
.navtoggle span,.navtoggle span::before,.navtoggle span::after{content:"";position:absolute;left:10px;right:10px;height:2px;background:var(--ink)}
.navtoggle span{top:18px}
.navtoggle span::before{top:-7px}.navtoggle span::after{top:7px}

/* ---------- buttons ---------- */
.btn{display:inline-block;border:1.5px solid var(--primary);background:var(--primary);color:#fff;padding:11px 22px;font-weight:600;font-size:.93rem;border-radius:4px;cursor:pointer;text-decoration:none!important;position:relative}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d)}
.btn--ghost{background:transparent;color:var(--primary)}
.btn--ghost:hover{background:#eaf2f7}
.btn--quiet{background:transparent;color:var(--ink2);border-color:var(--line)}
.btn--quiet:hover{background:#eef1f4;border-color:var(--muted)}
.btn--sm{padding:8px 16px;font-size:.86rem}
.btn--block{display:block;width:100%;text-align:center}
.rfq-btn .count{display:inline-block;min-width:20px;height:20px;line-height:20px;border-radius:10px;background:#fff;color:var(--primary);font-family:var(--font-mono);font-size:11px;text-align:center;margin-left:8px;padding:0 5px;vertical-align:middle}
.rfq-btn .count[data-empty="true"]{display:none}
.label-short{display:none}
@media(max-width:640px){.rfq-btn .label{display:none}.rfq-btn .label-short{display:inline}.rfq-btn{padding:8px 12px}}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);border-bottom:1px solid var(--line);padding:64px 0 0}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:end}
.kicker{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:600}
.hero h1{font-size:2.5rem;margin:14px 0 18px;color:var(--ink)}
.hero .lede{color:var(--muted);font-size:1.06rem;max-width:34rem}
.hero-cta{margin:28px 0 46px;display:flex;gap:14px;flex-wrap:wrap}
.hero-img{border:1px solid var(--line);border-bottom:none;background:#fff;padding:10px}

/* ---------- stats strip ---------- */
.stats{background:var(--ink);color:#cfd8e0;padding:26px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.stats b{display:block;font-size:1.7rem;color:#fff;font-weight:800}
.stats b small{font-size:.9rem;font-weight:600}
.stats span{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#93a3b1}

/* ---------- sections ---------- */
section{padding:66px 0}
.sec-head{max-width:660px;margin-bottom:40px}
.sec-head h2{font-size:1.8rem;margin:8px 0 12px}
.sec-head p{color:var(--muted)}
.rule{height:1px;background:var(--line)}

/* ---------- product cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:4px;display:flex;flex-direction:column;transition:box-shadow .18s}
.card:hover{box-shadow:0 6px 22px rgba(35,48,60,.1)}
.card .ph{height:185px;display:flex;align-items:center;justify-content:center;padding:14px;border-bottom:1px solid var(--line);background:#fff}
.card .ph img{max-height:100%;object-fit:contain}
.card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:7px;flex:1}
.card h3{font-size:1.02rem;color:var(--ink)}
.card .meta{font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.02em}
.card p.desc{font-size:.88rem;color:var(--ink2)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--line);color:var(--ink2);padding:2px 8px;border-radius:3px;background:#f7f9fa}
.tag.blue{border-color:#bcd4e2;color:var(--primary);background:#eef5f9}
.card .actions{margin-top:auto;padding-top:12px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.card .actions a,.card .actions button.add{font-size:.85rem;font-weight:600}

/* add-to-rfq button */
.add{display:inline-flex;align-items:center;gap:6px;background:none;border:1.5px solid var(--primary);color:var(--primary);padding:7px 14px;border-radius:4px;cursor:pointer;font-weight:600;font-size:.85rem}
.add:hover{background:var(--primary);color:#fff}
.add.added{background:var(--ok);border-color:var(--ok);color:#fff}

/* ---------- feature rows ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;margin-bottom:52px}
.feature img{border:1px solid var(--line);background:#fff;padding:8px}
.feature h3{font-size:1.3rem;margin-bottom:12px}
.feature ul{margin:12px 0 0 18px;color:var(--ink2);font-size:.95rem}
.feature li{margin-bottom:7px}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:4px}
table{border-collapse:collapse;width:100%;font-size:.82rem;min-width:760px}
caption{caption-side:top;text-align:left;font-weight:700;color:var(--ink);padding:14px 16px 8px;font-size:.95rem}
th{background:var(--ink);color:#fff;padding:9px 12px;text-align:left;white-space:nowrap;font-weight:600}
td{padding:8px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
tbody tr:nth-child(even){background:#f7f9fa}
tbody tr:hover{background:#eef3f7}
td.rowhead{font-weight:600;color:var(--primary);background:#f2f5f8;position:sticky;left:0}

/* ---------- filters / crumbs / pagehead ---------- */
.pagehead{background:#fff;border-bottom:1px solid var(--line);padding:34px 0 26px}
.crumbs{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.crumbs .sep{margin:0 8px;color:var(--line)}
.pagehead h1{font-size:2rem;margin:10px 0 8px}
.pagehead p{color:var(--muted);max-width:46rem}
.filterbar{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 26px}
.chip{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;padding:8px 16px;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;border-radius:3px}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff}
.series-block{margin-bottom:56px}
.sec-sub{display:flex;align-items:baseline;gap:14px;margin-bottom:14px;border-bottom:1px solid var(--line);padding-bottom:10px}
.sec-sub h3{font-size:1.25rem;color:var(--ink)}
.note{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}

/* ---------- RFQ page ---------- */
.rfq{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start;margin-top:34px}
.rfq h2{font-size:1.15rem}
.empty{background:#fff;border:1px dashed var(--line);border-radius:4px;padding:26px 28px;text-align:center;color:var(--muted)}
.empty h3{color:var(--ink);margin-bottom:6px;font-size:1rem}
.empty p{font-size:.9rem;margin-bottom:14px}
.rfqline{background:#fff;border:1px solid var(--line);border-radius:4px;padding:14px 16px;display:flex;gap:14px;align-items:center;margin-bottom:10px}
.rfqline__info{flex:1}
.rfqline__info b{display:block;font-size:.95rem}
.rfqline__info span{font-family:var(--font-mono);font-size:11px;color:var(--muted)}
.rfqline input.qty{width:76px;padding:7px 10px;border:1px solid var(--line);border-radius:4px;font:inherit}
.rfqline .rm{background:none;border:none;color:var(--err);cursor:pointer;font-size:.82rem;font-weight:600}
.rfqsum{display:flex;gap:22px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);border-top:2px solid var(--ink);margin-top:16px;padding-top:12px}
.nextsteps{background:#eef3f7;border:1px solid var(--line);border-radius:4px;padding:18px 22px;margin-top:22px}
.nextsteps h3{font-size:.95rem;margin-bottom:8px}
.nextsteps ol{margin-left:18px;font-size:.88rem;color:var(--ink2)}
.nextsteps li{margin-bottom:5px}
.formcard{background:#fff;border:1px solid var(--line);border-radius:4px;padding:24px 26px}
.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}
.field{display:flex;flex-direction:column}
.field--wide{grid-column:1/-1}
.field label{font-size:.82rem;font-weight:600;margin-bottom:5px;color:var(--ink2)}
.input,.select,.textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:4px;font:inherit;color:var(--ink);background:#fff}
.textarea{resize:vertical;min-height:96px}
.input:focus,.select:focus,.textarea:focus{outline:2px solid var(--primary);outline-offset:-1px;border-color:var(--primary)}
.field__err{display:none;color:var(--err);font-size:.78rem;margin-top:4px}
.field.invalid .input{border-color:var(--err)}
.field.invalid .field__err{display:block}
.formalert{display:none;background:#fbeceb;border:1px solid #e5b8b3;color:var(--err);border-radius:4px;padding:10px 14px;font-size:.87rem;margin-bottom:14px}
.formalert.show{display:block}
.checkline{display:flex;gap:8px;align-items:center;font-size:.86rem;color:var(--ink2);font-weight:400}
.formnote{font-size:.82rem;color:var(--muted);margin-top:14px}
.success{display:none;background:#eef7ee;border:1px solid #b9dcb6;border-radius:4px;padding:18px 22px;margin-top:18px}
.success.show{display:block}
.success h3{color:var(--ok);font-size:1rem;margin-bottom:6px}
.success p{font-size:.88rem;color:var(--ink2);white-space:pre-line}
.success .acts{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 8px}
.fine{font-size:.76rem;color:var(--muted)}
.backtop{position:fixed;right:18px;bottom:18px;background:var(--ink);color:#fff;border:1px solid var(--ink);border-radius:4px;width:44px;height:44px;font-size:1.1rem;cursor:pointer;display:none;z-index:40}
.backtop.show{display:block}

/* ---------- about / quality ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.kpi-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:4px;padding:14px 16px}
.kpi b{color:var(--primary);font-size:1.3rem}
.kpi span{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:2px}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.badge{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;border:1.5px solid var(--ink);color:var(--ink);padding:8px 14px;border-radius:3px;background:#fff;font-weight:700}

/* ---------- contact cta ---------- */
.cta-band{background:var(--ink);color:#dfe6ec;padding:56px 0}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:1.5rem;margin-bottom:6px}
.cta-band p{font-size:.92rem;color:#9fb0bd}
.cta-band .btn{background:#fff;color:var(--ink);border-color:#fff}
.cta-band .btn:hover{background:#dfe6ec;border-color:#dfe6ec}
.cta-band .ghost{background:transparent;color:#fff;border:1.5px solid #5a6b7a}
.cta-band .ghost:hover{background:#2d3c49}

/* ---------- footer ---------- */
footer{background:var(--ink);color:#aebbc6;padding:48px 0 24px;font-size:.88rem}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;margin-bottom:34px}
footer h4{color:#fff;font-size:.8rem;font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}
footer ul{list-style:none}
footer li{margin-bottom:7px}
footer a{color:#cfd8e0}
footer a:hover{color:#fff}
footer .brand__name{color:#fff}
footer .brand__sub{color:#8fa0ae}
.footer__bottom{border-top:1px solid #33414e;padding-top:16px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:#7d8d9a}

@media(max-width:960px){
  .hero-grid,.feature,.split,.rfq{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:2rem}
  .nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:10px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .navtoggle{display:block}
}
@media(max-width:560px){
  .grid-3,.grid-4,.footer__grid{grid-template-columns:1fr}
  .formgrid{grid-template-columns:1fr}
  .topbar__facts span:nth-child(2){display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto}}

/* ---------- contact section ---------- */
.contact{background:var(--bg);border-top:1px solid var(--line);padding:66px 0}
.contact .contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start}
.contact h2{font-size:1.9rem;margin:8px 0 14px}
.contact-info p{color:var(--muted);margin-bottom:10px}
.contact-info a{font-weight:600}
.form-status{font-family:var(--font-mono);font-size:.8rem;margin-top:10px;min-height:1.3em}
.form-status.err{color:var(--err)}
.form-status.ok{color:var(--ok)}
.link-arrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);font-weight:700}
.link-arrow:hover{color:var(--primary-d);text-decoration:none}

/* ---------- logo image ---------- */
.brand__logo{height:56px;width:auto;flex:none}
@media(max-width:640px){.brand__logo{height:44px}}

/* ---------- category intro ---------- */
.cat-intro{max-width:56rem;color:var(--muted);font-size:.93rem;margin:0 0 18px;padding:14px 18px;background:#fff;border-left:3px solid var(--primary)}

/* ---------- hero slider ---------- */
.hero-slider{position:relative}
.hero-slider .slide{opacity:0;transition:opacity .6s ease;pointer-events:none}
.hero-slider .slide.active{opacity:1;pointer-events:auto}
.hero-dots{position:absolute;bottom:14px;right:18px;display:flex;gap:8px;z-index:2}
.hero-dots .dot{width:12px;height:12px;border-radius:50%;border:1.5px solid #fff;background:rgba(255,255,255,.45);cursor:pointer;padding:0}
.hero-dots .dot.active{background:#fff}
@media (prefers-reduced-motion: reduce){.hero-slider .slide{transition:none}}