:root{
  --ink:#15171C;
  --ink-soft:#41464F;
  --paper:#F2F4F0;
  --surface:#FFFFFF;
  --mist:#E1E6DF;
  --aqua:#06BFA5;
  --aqua-deep:#04A28B;
  --aqua-tint:#E2F7F2;
  --shadow:0 14px 34px -22px rgba(21,23,28,.45);
  --radius:16px;
  --maxw:680px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Manrope",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:"Unbounded",system-ui,sans-serif;
  font-weight:600;line-height:1.12;letter-spacing:-.02em;margin:0;
}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:18px}

a:focus-visible{outline:3px solid var(--aqua);outline-offset:3px;border-radius:6px}

/* header */
header{
  position:sticky;top:0;z-index:10;
  background:rgba(242,244,240,.86);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--mist);
}
.nav{display:flex;align-items:center;gap:10px;height:60px}
.logo{display:flex;align-items:center;gap:9px;font-family:"Unbounded";font-weight:700;font-size:1.1rem;letter-spacing:-.02em}
.logo .mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--aqua),var(--aqua-deep));display:grid;place-items:center}
.logo .mark svg{width:16px;height:16px}

/* page intro */
.intro{padding:30px 0 8px}
.intro .eyebrow{
  display:inline-block;font-weight:700;font-size:.74rem;text-transform:uppercase;
  letter-spacing:.14em;color:var(--aqua-deep);background:var(--aqua-tint);
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.intro h1{font-size:clamp(1.6rem,6vw,2.1rem)}
.intro p{color:var(--ink-soft);margin-top:10px}

/* categories */
.cats{display:grid;grid-template-columns:1fr;gap:14px;padding:24px 0 40px}
.cat{
  display:flex;align-items:center;gap:16px;
  background:var(--surface);border:1px solid var(--mist);border-radius:var(--radius);
  padding:18px 18px;transition:transform .16s ease,box-shadow .2s ease,border-color .2s;
}
.cat:active{transform:scale(.99)}
.cat:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:transparent}
.cat-ic{flex:0 0 auto;width:46px;height:46px;border-radius:12px;background:var(--aqua-tint);color:var(--aqua-deep);display:grid;place-items:center}
.cat-ic svg{width:24px;height:24px}
.cat-body{flex:1;min-width:0}
.cat h3{font-size:1.08rem;margin-bottom:3px}
.cat p{color:var(--ink-soft);font-size:.9rem}
.cat .chev{flex:0 0 auto;color:var(--ink-soft)}

/* empty state */
.empty{background:var(--surface);border:1px dashed var(--mist);border-radius:var(--radius);padding:30px;text-align:center;color:var(--ink-soft)}

/* footer */
footer{border-top:1px solid var(--mist);padding:24px 0;margin-top:auto}
.foot{color:var(--ink-soft);font-size:.85rem;display:flex;flex-direction:column;gap:4px}

/* layout fill */
body{display:flex;flex-direction:column;min-height:100vh}
main{flex:1}

/* two columns on wider screens */
@media (min-width:560px){
  .cats{grid-template-columns:1fr 1fr}
}

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

/* ===== breadcrumb ===== */
.crumb{padding:18px 0 0;font-size:.85rem;color:var(--ink-soft)}
.crumb a{color:var(--aqua-deep);font-weight:600}

/* ===== product list ===== */
.plist{display:grid;grid-template-columns:1fr;gap:14px;padding:18px 0 40px}
.pcard{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);border:1px solid var(--mist);border-radius:var(--radius);
  padding:14px;transition:transform .16s ease,box-shadow .2s ease,border-color .2s;
}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:transparent}
.pcard-img{flex:0 0 auto;width:64px;height:64px;border-radius:12px;background:var(--aqua-tint);overflow:hidden;display:grid;place-items:center}
.pcard-img img{width:100%;height:100%;object-fit:cover}
.pcard-img .ph{color:var(--aqua-deep);font-weight:700;font-size:.7rem}
.pcard-body{flex:1;min-width:0}
.pcard h3{font-size:1.04rem;margin-bottom:2px}
.pcard .art{color:var(--ink-soft);font-size:.82rem}
.pcard .chev{flex:0 0 auto;color:var(--ink-soft)}

@media (min-width:560px){.plist{grid-template-columns:1fr 1fr}}

/* ===== product page ===== */
.product{padding:18px 0 48px}
.product-hero{
  background:var(--surface);border:1px solid var(--mist);border-radius:var(--radius);
  overflow:hidden;margin-bottom:22px;
}
.product-photo{width:100%;aspect-ratio:4/3;background:var(--aqua-tint);display:grid;place-items:center}
.product-photo img{width:100%;height:100%;object-fit:cover}
.product-photo .ph{color:var(--aqua-deep);font-weight:700}
.product-info{padding:18px}
.product-info h1{font-size:clamp(1.4rem,5vw,1.9rem)}
.product-info .art{color:var(--ink-soft);font-size:.88rem;margin-top:6px}
.product-info .desc{margin-top:12px;color:var(--ink-soft)}

.block{margin-bottom:26px}
.block h2{font-size:1.15rem;margin-bottom:12px}

/* specs */
.specs{background:var(--surface);border:1px solid var(--mist);border-radius:var(--radius);overflow:hidden}
.specs div{display:flex;justify-content:space-between;gap:16px;padding:12px 16px;border-bottom:1px solid var(--mist);font-size:.92rem}
.specs div:last-child{border-bottom:0}
.specs .k{color:var(--ink-soft)}
.specs .v{font-weight:600;text-align:right}

/* video */
.video-frame{position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:#000}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* docs */
.docs{display:grid;gap:10px}
.doc{
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--mist);border-radius:var(--radius);
  padding:14px 16px;transition:border-color .2s,box-shadow .2s;
}
.doc:hover{border-color:transparent;box-shadow:var(--shadow)}
.doc-ic{flex:0 0 auto;width:40px;height:40px;border-radius:10px;background:var(--aqua-tint);color:var(--aqua-deep);display:grid;place-items:center}
.doc-ic svg{width:20px;height:20px}
.doc-body{flex:1;min-width:0}
.doc .t{font-weight:600;font-size:.95rem}
.doc .s{color:var(--ink-soft);font-size:.8rem}
.doc .dl{flex:0 0 auto;color:var(--aqua-deep)}


/* ===== error page ===== */
.errp{padding:60px 0;text-align:center}
.errp .code{font-family:"Unbounded";font-weight:700;font-size:3.4rem;color:var(--aqua-deep);line-height:1}
.errp h1{font-size:1.4rem;margin:14px 0 8px}
.errp p{color:var(--ink-soft);margin-bottom:24px}
.errp .home{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;font-weight:700;padding:12px 22px;border-radius:999px;font-size:.95rem}