:root{
  --navy:#0C2340;
  --navy-2:#132d52;
  --turq:#00A896;
  --turq-dim: #007c6f;
  --grey:#F4F6F9;
  --line: rgba(12,35,64,0.12);
  --ink: #0C2340;
  --ink-soft: #4c5c72;
  --white:#ffffff;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter', sans-serif;
  background:var(--grey);
  color:var(--ink);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.brand-label{ font-family:'Montserrat', sans-serif; }
.data-label{ font-family:'Inter', sans-serif; font-weight:600; letter-spacing:0.4px; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.wrap{ max-width:1180px; margin:0 auto; padding:0 32px; }
@media (max-width:640px){ .wrap{ padding:0 20px; } }

/* ---------- molecule chain backdrop (signature element) ---------- */
.chain-svg{ position:absolute; inset:0; width:100%; height:100%; z-index:0; pointer-events:none; }
.chain-line{ fill:none; stroke:rgba(0,168,150,0.35); stroke-width:1.4; stroke-dasharray:6 8; animation: dash 40s linear infinite; }
@keyframes dash{ to{ stroke-dashoffset:-600; } }
.chain-node{ fill:var(--turq); opacity:0.55; }
.chain-node.big{ fill:var(--navy); opacity:0.12; }

/* ---------- header ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(12,35,64,0.97);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.nav{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.logo{ display:flex; align-items:center; gap:10px; color:var(--white); font-weight:800; font-size:20px; letter-spacing:0.3px; }
.logo-mark-img{ display:block; flex-shrink:0; }
.logo-mark{ width:30px; height:30px; flex-shrink:0; }
.logo-mark .polyfix-node{ fill:var(--turq); }
.logo small{ display:block; font-family:'Inter'; font-weight:500; font-size:10.5px; letter-spacing:2px; color:rgba(255,255,255,0.55); text-transform:uppercase; margin-top:1px; }
nav.links{ display:flex; align-items:center; gap:32px; }
nav.links a{ color:rgba(255,255,255,0.78); font-size:14.5px; font-weight:500; transition:color .2s; position:relative; }
nav.links a:hover, nav.links a.active{ color:var(--white); }
.lang-switch{ display:flex; gap:6px; font-family:'Inter'; font-size:12.5px; font-weight:700; }
.lang-switch a{ color:rgba(255,255,255,0.45); padding:4px 7px; border-radius:2px; }
.lang-switch a.active{ color:var(--white); background:rgba(255,255,255,0.1); }
.lang-switch a:hover{ color:var(--white); }
.nav-cta{
  background:var(--turq); color:var(--navy) !important; font-weight:700 !important;
  padding:11px 22px; border-radius:2px; font-size:13.5px !important; letter-spacing:0.3px;
  transition: background .2s;
}
.nav-cta:hover{ background:#12c1ae; }
.burger{ display:none; }
@media (max-width:960px){
  nav.links{ display:none; }
  .burger{ display:block; color:white; font-size:26px; background:none; border:none; }
}

/* ---------- hero (home) ---------- */
.hero{
  position:relative; overflow:hidden;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color:var(--white);
  padding:112px 0 96px;
}
.hero-inner{ position:relative; z-index:2; max-width:760px; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'Inter'; font-weight:600; font-size:12.5px; letter-spacing:1.5px; text-transform:uppercase;
  color:var(--turq); border:1px solid rgba(0,168,150,0.4); padding:7px 14px; border-radius:2px; margin-bottom:28px;
}
.eyebrow::before{ content:''; width:6px; height:6px; background:var(--turq); border-radius:50%; display:inline-block; }
h1.hero-title{ font-size:46px; font-weight:800; line-height:1.15; letter-spacing:-0.5px; margin-bottom:22px; }
h1.hero-title span{ color:var(--turq); }
.hero-sub{ font-size:17px; color:rgba(255,255,255,0.72); max-width:600px; margin-bottom:38px; line-height:1.65; }
.btn-row{ display:flex; gap:16px; flex-wrap:wrap; }
.btn{ padding:15px 26px; border-radius:2px; font-weight:600; font-size:14.5px; letter-spacing:0.2px; display:inline-flex; align-items:center; gap:10px; transition:all .2s; border:1px solid transparent; }
.btn-primary{ background:var(--turq); color:var(--navy); }
.btn-primary:hover{ background:#12c1ae; transform:translateY(-1px); }
.btn-ghost{ border-color:rgba(255,255,255,0.28); color:var(--white); }
.btn-ghost:hover{ border-color:var(--turq); color:var(--turq); }

.hero-stats{ display:flex; gap:0; margin-top:64px; border-top:1px solid rgba(255,255,255,0.12); padding-top:28px; max-width:760px; position:relative; z-index:2; }
.stat{ flex:1; padding-right:24px; }
.stat .num{ font-family:'Montserrat'; font-weight:700; font-size:24px; color:var(--turq); }
.stat .lbl{ font-size:12.5px; color:rgba(255,255,255,0.55); margin-top:4px; }

/* ---------- inner-page hero (product/contact pages) ---------- */
.page-hero{
  position:relative; overflow:hidden;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color:var(--white);
  padding:64px 0 56px;
}
.breadcrumb{ position:relative; z-index:2; font-family:'Inter'; font-weight:500; font-size:12.5px; color:rgba(255,255,255,0.5); margin-bottom:20px; display:flex; gap:8px; flex-wrap:wrap; }
.breadcrumb a{ color:rgba(255,255,255,0.7); }
.breadcrumb a:hover{ color:var(--turq); }
.page-hero h1{ position:relative; z-index:2; font-size:34px; font-weight:800; letter-spacing:-0.4px; max-width:720px; margin-bottom:16px; }
.page-hero p{ position:relative; z-index:2; font-size:15.5px; color:rgba(255,255,255,0.72); max-width:620px; line-height:1.65; }
.chip-row{ position:relative; z-index:2; display:flex; gap:10px; flex-wrap:wrap; margin-top:24px; }
.chip{ font-family:'Inter'; font-weight:600; font-size:11.5px; letter-spacing:0.3px; background:rgba(0,168,150,0.14); border:1px solid rgba(0,168,150,0.35); color:var(--turq); padding:6px 12px; border-radius:2px; }

/* ---------- section shell ---------- */
section{ padding:96px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.tag{ font-family:'Inter'; font-weight:700; font-size:12px; letter-spacing:1.6px; text-transform:uppercase; color:var(--turq-dim); margin-bottom:14px; display:block; }
h2{ font-size:32px; font-weight:700; letter-spacing:-0.3px; color:var(--navy); }
.section-sub{ color:var(--ink-soft); margin-top:14px; font-size:15.5px; line-height:1.7; }

/* ---------- sectors strip ---------- */
.sectors{ background:var(--white); border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:34px 0; }
.sector-row{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:20px; }
.sector-item{ display:flex; align-items:center; gap:10px; font-size:13.5px; font-weight:600; color:var(--ink-soft); }
.sector-item svg{ width:20px; height:20px; stroke:var(--turq); flex-shrink:0; }

/* ---------- product cards ---------- */
.products{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px; position:relative; }
@media (max-width:800px){ .products{ grid-template-columns:1fr; } }
.pcard{
  background:var(--white); border:1px solid var(--line); border-radius:3px; overflow:hidden; position:relative;
  transition: box-shadow .25s, border-color .25s;
}
.pcard:hover{ box-shadow:0 18px 40px rgba(12,35,64,0.09); border-color:rgba(0,168,150,0.4); }
.pcard-visual{ height:170px; position:relative; background:var(--navy); overflow:hidden; }
.pcard-visual svg{ width:100%; height:100%; }
.pcard-body{ padding:28px 28px 26px; }
.pcard-index{ font-family:'Inter'; font-weight:700; font-size:12px; color:var(--turq-dim); letter-spacing:1px; margin-bottom:10px; display:block; }
.pcard h3{ font-size:19.5px; font-weight:700; margin-bottom:10px; color:var(--navy); }
.pcard p{ font-size:14px; color:var(--ink-soft); line-height:1.65; margin-bottom:18px; }
.pcard-foot{ display:flex; align-items:center; justify-content:space-between; border-top:1px solid var(--line); padding-top:16px; }
.tds-link{ font-size:13px; font-weight:600; color:var(--turq-dim); display:flex; align-items:center; gap:6px; }
.tds-link svg{ width:14px; height:14px; }
.spec-pill{ font-family:'Inter'; font-weight:700; font-size:11px; background:var(--grey); color:var(--ink-soft); padding:4px 9px; border-radius:2px; }

/* ---------- TDS / data table section ---------- */
.datatable{ background:var(--navy); color:var(--white); border-radius:3px; overflow:hidden; }
.dt-head{ padding:30px 32px 0; }
.dt-head h3{ font-family:'Montserrat'; font-size:20px; font-weight:700; margin-bottom:6px; }
.dt-head p{ color:rgba(255,255,255,0.55); font-size:13.5px; margin-bottom:22px; }
table{ width:100%; border-collapse:collapse; font-family:'Inter'; font-size:13.2px; }
thead th{ text-align:left; padding:12px 32px; background:rgba(255,255,255,0.04); color:var(--turq); font-weight:700; letter-spacing:0.4px; text-transform:uppercase; font-size:11px; border-top:1px solid rgba(255,255,255,0.1); border-bottom:1px solid rgba(255,255,255,0.1); }
tbody td{ padding:14px 32px; border-bottom:1px solid rgba(255,255,255,0.06); color:rgba(255,255,255,0.85); font-weight:500; }
tbody tr:last-child td{ border-bottom:none; }
tbody tr:hover{ background:rgba(255,255,255,0.03); }

/* ---------- about / corporate ---------- */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
@media (max-width:800px){ .about-grid{ grid-template-columns:1fr; gap:40px; } }
.about-visual{ position:relative; aspect-ratio:1/1; background:var(--white); border:1px solid var(--line); border-radius:3px; overflow:hidden; }
.checklist{ list-style:none; margin-top:26px; }
.checklist li{ display:flex; gap:14px; padding:16px 0; border-bottom:1px solid var(--line); font-size:14.5px; color:var(--ink-soft); }
.checklist li:first-child{ padding-top:0; }
.checklist strong{ color:var(--navy); }
.check-icon{ width:20px; height:20px; flex-shrink:0; border-radius:50%; background:rgba(0,168,150,0.12); display:flex; align-items:center; justify-content:center; }
.check-icon svg{ width:11px; height:11px; stroke:var(--turq-dim); }

/* ---------- product detail specifics ---------- */
.detail-grid{ display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:start; }
@media (max-width:900px){ .detail-grid{ grid-template-columns:1fr; gap:40px; } }
.detail-visual{ position:sticky; top:100px; border-radius:3px; overflow:hidden; border:1px solid var(--line); background:var(--navy); aspect-ratio:4/3.4; }
.detail-visual svg{ width:100%; height:100%; }
.use-list{ list-style:none; margin-top:8px; }
.use-list li{ padding:10px 0 10px 22px; position:relative; font-size:14.5px; color:var(--ink-soft); border-bottom:1px solid var(--line); }
.use-list li::before{ content:''; position:absolute; left:0; top:18px; width:8px; height:8px; background:var(--turq); border-radius:50%; }
.prod-nav{ display:flex; justify-content:space-between; border-top:1px solid var(--line); margin-top:64px; padding-top:28px; gap:20px; flex-wrap:wrap; }
.prod-nav a{ font-size:13.5px; font-weight:600; color:var(--navy); display:flex; align-items:center; gap:8px; }
.prod-nav a:hover{ color:var(--turq-dim); }
.prod-nav a.next{ margin-left:auto; text-align:right; }

/* ---------- contact / lead form ---------- */
.contact-section{ background:var(--white); border-top:1px solid var(--line); }
.contact-grid{ display:grid; grid-template-columns:0.85fr 1.15fr; gap:64px; }
@media (max-width:900px){ .contact-grid{ grid-template-columns:1fr; gap:48px; } }
.contact-info-item{ display:flex; gap:16px; padding:20px 0; border-bottom:1px solid var(--line); }
.contact-info-item:first-child{ padding-top:0; }
.contact-info-item svg{ width:19px; height:19px; stroke:var(--turq-dim); flex-shrink:0; margin-top:2px; }
.contact-info-item .lbl{ font-size:11.5px; text-transform:uppercase; letter-spacing:0.6px; color:var(--ink-soft); margin-bottom:4px; font-weight:700; }
.contact-info-item .val{ font-size:14.5px; color:var(--navy); font-weight:600; }

form{ background:var(--grey); border:1px solid var(--line); border-radius:3px; padding:36px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:18px; }
@media (max-width:520px){ .form-row{ grid-template-columns:1fr; } }
.field{ display:flex; flex-direction:column; gap:7px; }
.field.full{ grid-column:1/-1; }
label{ font-size:12.5px; font-weight:600; color:var(--navy); }
label .req{ color:var(--turq-dim); }
input, select{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:2px; background:var(--white);
  font-family:'Inter'; font-size:14px; color:var(--ink); outline:none; transition:border-color .2s;
}
input:focus, select:focus{ border-color:var(--turq); }
.honeypot-field{ position:absolute; left:-9999px; top:-9999px; }
.submit-btn{
  width:100%; margin-top:6px; background:var(--navy); color:var(--white); border:none; padding:15px; border-radius:2px;
  font-weight:700; font-size:14.5px; cursor:pointer; transition:background .2s; letter-spacing:0.3px;
}
.submit-btn:hover{ background:var(--navy-2); }
.submit-btn:disabled{ opacity:0.6; cursor:not-allowed; }
.form-note{ font-size:12px; color:var(--ink-soft); margin-top:14px; text-align:center; }
.form-success, .form-error{ display:none; padding:16px; border-radius:2px; font-size:13.5px; font-weight:600; margin-bottom:18px; }
.form-success{ background:rgba(0,168,150,0.1); border:1px solid rgba(0,168,150,0.4); color:var(--turq-dim); }
.form-error{ background:rgba(200,60,60,0.08); border:1px solid rgba(200,60,60,0.35); color:#a83232; }

/* ---------- footer ---------- */
footer{ background:var(--navy); color:rgba(255,255,255,0.6); padding:56px 0 28px; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:48px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,0.1); }
@media (max-width:700px){ .foot-grid{ grid-template-columns:1fr; gap:32px; } }
.foot-logo{ color:var(--white); font-family:'Montserrat'; font-weight:800; font-size:18px; margin-bottom:14px; }
.foot-grid p{ font-size:13.5px; line-height:1.7; max-width:320px; }
.foot-col h4{ font-family:'Inter'; font-weight:700; font-size:12px; text-transform:uppercase; letter-spacing:1.2px; color:rgba(255,255,255,0.4); margin-bottom:16px; }
.foot-col a, .foot-col div{ display:block; font-size:13.5px; margin-bottom:11px; color:rgba(255,255,255,0.72); }
.foot-col a:hover{ color:var(--turq); }
.foot-bottom{ padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:12.5px; }

.reveal{ opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .chain-line{ animation:none; }
  html{ scroll-behavior:auto; }
}