/* ==========================================================================
   PankhX — Blueprint Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root{
  --navy-deep:#081a33;
  --navy:#0d2b52;
  --navy-soft:#123765;
  --line:#3a6ea8;
  --line-dim:rgba(94,196,214,0.16);
  --cyan:#5eeadb;
  --cyan-dim:rgba(94,234,219,0.35);
  --paper:#eef1f5;
  --paper-dim:#c9d3de;
  --orange:#ff6a3d;
  --orange-dim:#ffb08f;
  --ink:#0a1626;

  --display: 'Chakra Petch', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;

  --radius: 2px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}

.container{
  max-width:1180px;
  margin:0 auto;
  padding:0 28px;
}

/* -------------------- Blueprint grid background -------------------- */
.blueprint{
  background-color:var(--navy-deep);
  background-image:
    linear-gradient(var(--line-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dim) 1px, transparent 1px);
  background-size:40px 40px;
  position:relative;
  color:var(--paper);
}
.blueprint::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(94,196,214,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94,196,214,0.06) 1px, transparent 1px);
  background-size:8px 8px;
  pointer-events:none;
}

/* corner crop marks */
.crop-marks::after,
.crop-marks::before{
  content:"";
  position:absolute;
  width:22px;height:22px;
  border-top:2px solid var(--cyan-dim);
  border-left:2px solid var(--cyan-dim);
  top:18px;left:18px;
}
.crop-marks::after{
  top:auto;left:auto;bottom:18px;right:18px;
  border-top:none;border-left:none;
  border-bottom:2px solid var(--cyan-dim);
  border-right:2px solid var(--cyan-dim);
}

/* -------------------- Top bar -------------------- */
.topbar{
  background:var(--navy-deep);
  color:var(--paper-dim);
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.03em;
  border-bottom:1px solid var(--line-dim);
}
.topbar .container{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:8px;padding-bottom:8px;
  flex-wrap:wrap;gap:6px;
}
.topbar a:hover{color:var(--cyan);}

/* -------------------- Header / Nav -------------------- */
header.site-header{
  background:var(--navy);
  border-bottom:1px solid var(--line-dim);
  position:sticky;top:0;z-index:50;
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 0;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--display);
  font-size:22px;font-weight:700;
  color:var(--paper);
  letter-spacing:0.02em;
}
.logo .mark{
  width:34px;height:34px;
  border:1.5px solid var(--cyan);
  display:flex;align-items:center;justify-content:center;
  color:var(--cyan);font-size:16px;
  transform:rotate(0deg);
}
.logo .doc-id{
  font-family:var(--mono);font-size:10px;color:var(--cyan-dim);
  letter-spacing:0.08em;font-weight:400;display:block;margin-top:-2px;
}
nav.main-nav ul{display:flex;gap:30px;align-items:center;}
nav.main-nav a{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--paper-dim);
  position:relative;
  padding-bottom:4px;
}
nav.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;
  width:0;height:1px;background:var(--cyan);
  transition:width .25s ease;
}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--cyan);}
nav.main-nav a:hover::after,nav.main-nav a.active::after{width:100%;}

.nav-toggle{display:none;background:none;border:1px solid var(--cyan-dim);color:var(--cyan);padding:8px 10px;font-family:var(--mono);}

/* -------------------- Buttons -------------------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:13px 24px;
  border:1px solid var(--cyan);
  color:var(--cyan);
  background:transparent;
  border-radius:var(--radius);
  transition:all .2s ease;
}
.btn:hover{background:var(--cyan);color:var(--navy-deep);}
.btn-solid{
  background:var(--orange);border-color:var(--orange);color:var(--navy-deep);
  font-weight:700;
}
.btn-solid:hover{background:var(--orange-dim);border-color:var(--orange-dim);}
.btn-ghost{border-color:var(--paper-dim);color:var(--paper);}
.btn-ghost:hover{background:var(--paper);color:var(--navy-deep);}
.btn-dark{border-color:var(--navy);color:var(--navy);}
.btn-dark:hover{background:var(--navy);color:var(--paper);}

/* -------------------- Eyebrow / labels -------------------- */
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.15em;
  text-transform:uppercase;
  color:var(--cyan);
  display:flex;align-items:center;gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);}

/* -------------------- Hero -------------------- */
.hero{
  padding:90px 0 70px;
  position:relative;
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:center;
}
.hero h1{
  font-family:var(--display);
  font-size:clamp(38px,5vw,58px);
  line-height:1.05;
  margin:0 0 20px;
  color:var(--paper);
}
.hero h1 span{color:var(--cyan);}
.hero p.lede{
  font-size:17px;color:var(--paper-dim);max-width:480px;margin-bottom:32px;
}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;}

.schematic-caption{
  font-family:var(--mono);font-size:11px;color:var(--cyan-dim);
  letter-spacing:0.08em;margin-top:14px;text-align:center;
}

/* -------------------- Stats strip -------------------- */
.stats-strip{
  background:var(--navy-soft);
  border-top:1px solid var(--line-dim);
  border-bottom:1px solid var(--line-dim);
}
.stats-strip .container{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:26px 28px;
}
.stat{text-align:center;border-left:1px solid var(--line-dim);color:var(--paper);}
.stat:first-child{border-left:none;}
.stat .num{font-family:var(--display);font-size:26px;color:var(--cyan);}
.stat .label{font-family:var(--mono);font-size:11px;color:var(--paper-dim);letter-spacing:0.06em;text-transform:uppercase;margin-top:4px;}

/* -------------------- Section basics -------------------- */
section{padding:80px 0;}
section.tight{padding:56px 0;}
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{
  font-family:var(--display);font-size:clamp(28px,3.4vw,38px);
  margin:0 0 12px;color:var(--ink);
}
.section-head p{color:#48566b;font-size:16px;}
.on-dark .section-head h2{color:var(--paper);}
.on-dark .section-head p{color:var(--paper-dim);}

/* -------------------- Category cards -------------------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.cat-card{
  background:var(--navy);
  border:1px solid var(--line-dim);
  padding:28px 24px;
  position:relative;
  transition:transform .2s ease, border-color .2s ease;
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--cyan);}
.cat-card .fig{
  font-family:var(--mono);font-size:11px;color:var(--cyan-dim);
  letter-spacing:0.08em;margin-bottom:16px;
}
.cat-card h3{font-family:var(--display);font-size:20px;color:var(--paper);margin:0 0 10px;}
.cat-card p{font-size:14px;color:var(--paper-dim);margin:0 0 18px;}
.cat-card a.link{
  font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:0.05em;
  display:inline-flex;align-items:center;gap:6px;
}
.cat-card svg{width:100%;height:110px;margin-bottom:18px;}

/* -------------------- Product grid -------------------- */
.filters{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;
  border-bottom:1px solid var(--paper-dim);padding-bottom:20px;
}
.filters button{
  font-family:var(--mono);font-size:12px;letter-spacing:0.05em;text-transform:uppercase;
  padding:9px 16px;border:1px solid var(--navy);background:transparent;color:var(--navy);
  border-radius:var(--radius);
}
.filters button.active,.filters button:hover{background:var(--navy);color:var(--paper);}

.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.product-card{
  background:#fff;border:1px solid var(--paper-dim);
  transition:box-shadow .2s ease, transform .2s ease;
}
.product-card:hover{box-shadow:0 14px 30px rgba(10,22,38,0.12);transform:translateY(-3px);}
.product-card .thumb{
  aspect-ratio:4/3;background:var(--navy);position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-dim);
}
.product-card .thumb svg{width:100%;height:100%;padding:18px;}
.product-card .badge{
  position:absolute;top:10px;left:10px;
  font-family:var(--mono);font-size:10px;letter-spacing:0.05em;text-transform:uppercase;
  background:var(--orange);color:var(--navy-deep);padding:4px 8px;font-weight:700;
}
.product-card .body{padding:18px 20px 22px;}
.product-card .cat-tag{font-family:var(--mono);font-size:10.5px;color:#7b8ba0;letter-spacing:0.08em;text-transform:uppercase;}
.product-card h4{font-family:var(--display);font-size:17px;margin:8px 0 8px;}
.product-card .specs{font-family:var(--mono);font-size:11.5px;color:#5b6b81;margin-bottom:14px;line-height:1.7;}
.product-card .price-row{display:flex;justify-content:space-between;align-items:center;}
.product-card .price{font-family:var(--display);font-size:19px;color:var(--navy);}
.product-card .price .old{font-family:var(--body);font-size:13px;color:#a3adba;text-decoration:line-through;margin-right:6px;}
.product-card .add{
  font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:0.05em;
  border:1px solid var(--navy);padding:8px 12px;color:var(--navy);
}
.product-card .add:hover{background:var(--navy);color:#fff;}

/* -------------------- Callout / dashed leader lines (diagram) -------------------- */
.leader{position:relative;}
.leader .dash-line{
  position:absolute;border-top:1px dashed var(--cyan-dim);
}

/* -------------------- Safety / info blocks -------------------- */
.hazard{
  border:1px solid var(--orange);
  background:#fff6f2;
  padding:22px 24px;
  display:flex;gap:16px;align-items:flex-start;
  margin:28px 0;
}
.hazard .icon{
  font-family:var(--mono);font-weight:700;color:var(--orange);
  border:2px solid var(--orange);width:34px;height:34px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.hazard h4{margin:0 0 6px;font-family:var(--display);font-size:16px;}
.hazard p{margin:0;font-size:14.5px;color:#54463f;}

/* -------------------- Spec table -------------------- */
table.spec-table{width:100%;border-collapse:collapse;font-size:14.5px;}
table.spec-table tr{border-bottom:1px solid var(--paper-dim);}
table.spec-table td{padding:12px 4px;}
table.spec-table td:first-child{
  font-family:var(--mono);color:#5b6b81;width:40%;text-transform:uppercase;font-size:12px;letter-spacing:0.04em;
}

/* -------------------- Founders -------------------- */
.founders{display:grid;grid-template-columns:1fr 1fr;gap:30px;}
.founder-card{
  border:1px solid var(--paper-dim);padding:26px;background:#fff;
}
.founder-card .id-plate{
  font-family:var(--mono);font-size:11px;color:#7b8ba0;letter-spacing:0.08em;margin-bottom:14px;
  display:flex;justify-content:space-between;
}
.founder-card .avatar{
  width:64px;height:64px;border:1.5px solid var(--navy);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--display);font-size:22px;color:var(--navy);margin-bottom:16px;
}
.founder-card h3{font-family:var(--display);font-size:20px;margin:0 0 6px;}
.founder-card .role{font-family:var(--mono);font-size:12px;color:var(--orange);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:12px;}

/* -------------------- Contact -------------------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;}
.contact-card{border:1px solid var(--paper-dim);padding:22px;margin-bottom:16px;background:#fff;}
.contact-card .label{font-family:var(--mono);font-size:11px;color:#7b8ba0;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:6px;}
.contact-card .value{font-family:var(--display);font-size:19px;}

form.form{display:flex;flex-direction:column;gap:16px;}
.form label{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:0.05em;color:#48566b;margin-bottom:6px;display:block;}
.form input,.form select,.form textarea{
  width:100%;padding:12px 14px;border:1px solid var(--paper-dim);background:#fff;
  font-family:var(--body);font-size:14.5px;border-radius:var(--radius);
}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--cyan);border-color:var(--cyan);}
.form textarea{min-height:120px;resize:vertical;}

/* -------------------- Footer -------------------- */
footer.site-footer{
  background:var(--navy-deep);color:var(--paper-dim);
  border-top:1px solid var(--line-dim);
  padding:60px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;
  padding-bottom:40px;border-bottom:1px solid var(--line-dim);
}
.footer-grid h5{
  font-family:var(--mono);font-size:12px;color:var(--cyan);text-transform:uppercase;
  letter-spacing:0.08em;margin:0 0 16px;
}
.footer-grid li{margin-bottom:10px;font-size:14px;}
.footer-grid a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;padding-top:22px;
  font-family:var(--mono);font-size:11.5px;flex-wrap:wrap;gap:10px;
}

/* -------------------- Policy pages -------------------- */
.policy-doc{max-width:800px;}
.policy-doc h2{font-family:var(--display);font-size:24px;margin:40px 0 14px;color:var(--navy);}
.policy-doc h2:first-child{margin-top:0;}
.policy-doc p, .policy-doc li{color:#3b4757;font-size:15.5px;}
.policy-doc ul{padding-left:22px;list-style:disc;margin:12px 0;}
.policy-doc .updated{
  font-family:var(--mono);font-size:12px;color:#7b8ba0;letter-spacing:0.05em;
  text-transform:uppercase;margin-bottom:30px;display:inline-block;
  border:1px solid var(--paper-dim);padding:6px 12px;
}

/* -------------------- Quote form section -------------------- */
.quote-band{
  background:var(--navy);border:1px solid var(--line-dim);padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}

/* -------------------- Responsive -------------------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .cat-grid,.product-grid{grid-template-columns:repeat(2,1fr);}
  .stats-strip .container{grid-template-columns:repeat(2,1fr);row-gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .founders,.contact-grid,.quote-band{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .nav-toggle{display:block;}
  nav.main-nav{display:none;}
  .cat-grid,.product-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}