:root{
  --text:#111318;
  --gray:#6b7280;
  --gray-lt:#9ca3af;
  --line:#e5e7eb;
  --line-dark:#111318;
  --bg:#ffffff;
  --bg-soft:#f7f7f8;
  --wrb:#0f5cc4;          /* WR Blue accent */
  --wrb-tint:#eef4fc;
  --ok:#15803d;
  --warn:#a16207;
  --err:#c53030;
  --body:'Inter',system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1!important;transform:none!important}
  .hero-slide{opacity:1}
  .hero-slide:not(.active){opacity:0}
}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}
body{
  font-family:var(--body);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  background:var(--bg);
}
a{color:inherit}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--wrb);outline-offset:2px}
img{display:block}
html{scroll-padding-top:80px}
body{padding-top:64px}          /* fixed-header offset on interior pages */
body.has-hero{padding-top:0}    /* hero sits full-bleed under the header */

/* ---------- header ----------
   Two stacked background layers cross-fade (white ⟷ dark scrim) so the
   bar transitions smoothly instead of snapping between a gradient and a
   solid color. */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:50;isolation:isolate;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:0 40px;height:64px;
  border-bottom:1px solid var(--line);
  transition:border-color .4s ease;
}
.topbar::before{  /* solid white layer (visible when scrolled) */
  content:"";position:absolute;inset:0;z-index:-2;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  opacity:1;transition:opacity .4s ease;
}
.topbar::after{   /* dark scrim (visible over the hero) */
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg, rgba(10,12,16,.55), rgba(10,12,16,0));
  opacity:0;transition:opacity .4s ease;
}
.topbar.over-hero{border-bottom-color:transparent}
.topbar.over-hero::before{opacity:0}
.topbar.over-hero::after{opacity:1}
.topbar.over-hero .logo{color:#fff}
.topbar.over-hero .navlink{color:rgba(255,255,255,.92)}
.topbar.over-hero .navlink:hover{border-bottom-color:#fff}
.topbar.over-hero .cartbtn{color:#fff}
.logo{
  font-size:16px;font-weight:800;letter-spacing:.14em;
  text-decoration:none;white-space:nowrap;color:var(--text);
  transition:color .4s ease;
}
.logo .lt{font-weight:300;color:var(--gray)}
.logo .grad{color:var(--wrb)}
.topnav{display:flex;align-items:center;gap:34px}
.navlink{
  font-size:12px;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;text-decoration:none;color:var(--text);
  padding:6px 0;background:none;border:none;white-space:nowrap;
  border-bottom:1px solid transparent;transition:border-color .15s,color .4s ease;
}
.navlink:hover{border-bottom-color:var(--text)}
.navlink.active{border-bottom-color:var(--wrb);color:var(--wrb)}
.topbar.over-hero .navlink.active{border-bottom-color:#fff;color:#fff}
.cartbtn{
  position:relative;background:none;border:none;padding:8px;
  display:flex;align-items:center;color:var(--text);
  transition:color .4s ease;
}
.cartbtn svg{width:22px;height:22px;stroke:currentColor}
.cartbtn .count{
  position:absolute;top:0;right:-2px;
  background:var(--text);color:#fff;
  min-width:17px;height:17px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:700;padding:0 4px;
}

/* ---------- hero ---------- */
.hero{
  position:relative;height:min(80vh,760px);min-height:460px;overflow:hidden;
  display:flex;align-items:flex-end;
}
.hero img.bgimg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 56%;
}
/* crossfade slideshow layers */
.hero-slide{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;transition:opacity 1.1s ease;
}
.hero-slide.active{opacity:1}
.hero-dots{
  position:absolute;left:0;right:0;bottom:14px;z-index:3;
  display:flex;justify-content:center;gap:8px;
}
.hero-dots button{
  width:8px;height:8px;border-radius:50%;border:none;padding:0;cursor:pointer;
  background:rgba(255,255,255,.45);transition:background .2s,transform .2s;
}
.hero-dots button.on{background:#fff;transform:scale(1.25)}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,16,.05) 30%,rgba(10,12,16,.62) 100%);
}
.hero-inner{
  position:relative;z-index:2;width:100%;max-width:1280px;margin:0 auto;
  padding:0 40px 56px;
  display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.hero .eyebrow-lt{
  font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:rgba(255,255,255,.85);display:block;margin-bottom:10px;
}
.hero h1{
  color:#fff;font-size:clamp(46px,7vw,84px);line-height:.98;letter-spacing:.01em;
  text-transform:uppercase;font-weight:800;
}
.hero h1 .lt{font-weight:300}
.hero-side{max-width:340px;padding-bottom:6px}
.hero-side p{color:rgba(255,255,255,.88);font-size:14.5px;text-align:right;margin-bottom:16px}
.hero-side .cta{display:flex;justify-content:flex-end}
.btn-line{
  display:inline-flex;align-items:center;gap:10px;
  background:#fff;color:var(--text);border:1px solid #fff;text-decoration:none;
  font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  padding:14px 26px;transition:background .15s,color .15s;
}
.btn-line:hover{background:transparent;color:#fff}

/* ---------- sections ---------- */
.wrap{max-width:1280px;margin:0 auto;padding:0 40px}
section.block{padding:88px 0 8px}
.s-head{margin-bottom:44px}
.eyebrow{
  font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--wrb);display:block;margin-bottom:12px;
}
.s-head h2{
  font-size:clamp(32px,4.4vw,52px);line-height:1.06;letter-spacing:-.01em;font-weight:300;
}
.s-head h2 b{font-weight:800;display:block}

/* ---------- product cards ---------- */
.grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding-bottom:80px;
}
.card{
  cursor:pointer;text-decoration:none;color:inherit;
  display:flex;flex-direction:column;
  border:1px solid var(--line);background:#fff;overflow:hidden;
  transition:border-color .18s, box-shadow .18s, transform .18s;
}
.card:hover{border-color:var(--wrb);box-shadow:0 8px 26px rgba(15,92,196,.12);transform:translateY(-3px)}
.thumb{
  aspect-ratio:4/3;background:var(--bg-soft);overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .thumb img{transform:scale(1.03)}
.thumb .ph{font-size:12px;font-weight:500;color:var(--gray-lt);text-align:center;padding:0 12px}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card .fits{
  font-size:10.5px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gray-lt);display:block;margin-bottom:6px;
}
.card-title{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.card h3{font-size:19px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.arrowbtn{
  flex-shrink:0;width:38px;height:38px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--text);transition:all .15s;
}
.card:hover .arrowbtn{background:var(--wrb);color:#fff;border-color:var(--wrb)}
.card .desc{
  font-size:13.5px;color:var(--gray);margin-top:8px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card .note{font-size:12px;font-weight:500;margin-top:8px;display:block}
.card .note.req{color:var(--wrb)}
.card .note.delayed{color:var(--warn)}
.price-line{margin-top:12px;font-size:15px;font-weight:700}
.price-line .from{font-weight:400;color:var(--gray)}
.price-line .unit{font-weight:400;font-size:12.5px;color:var(--gray-lt)}

/* ---------- offer box ---------- */
.offerbox{
  border:1px solid var(--line-dark);
  padding:34px 38px;margin:8px 0 88px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.offerbox .eyebrow{margin-bottom:8px}
.offerbox h3{font-size:24px;font-weight:800;letter-spacing:-.01em}
.offerbox p{font-size:13.5px;color:var(--gray);margin-top:4px}
.btn-dark{
  display:inline-flex;align-items:center;gap:10px;
  background:none;color:var(--text);border:1px solid var(--line-dark);text-decoration:none;
  font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  padding:14px 26px;transition:background .15s,color .15s;white-space:nowrap;
}
.btn-dark:hover{background:var(--text);color:#fff}
.btn-wrb{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--wrb);color:#fff;border:1px solid var(--wrb);text-decoration:none;
  font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  padding:14px 26px;transition:background .15s,border-color .15s;white-space:nowrap;
}
.btn-wrb:hover{background:#0b4899;border-color:#0b4899}

/* ---------- interior page heads ---------- */
.page-wrap{max-width:1280px;margin:0 auto;padding:0 40px}
.page-head{padding:48px 0 30px}
.page-head .backlink{margin-bottom:14px}
.page-head h1{font-size:clamp(30px,4.4vw,48px);font-weight:800;letter-spacing:-.01em;line-height:1.03}
.page-head p{color:var(--gray);font-size:14.5px;margin-top:8px;max-width:640px}

/* ---------- system explainer page ---------- */
.sys-intro{padding:56px 0 8px}
.sys-intro .eyebrow{margin-bottom:14px}
.sys-intro h1{font-size:clamp(34px,5.4vw,64px);font-weight:800;letter-spacing:-.015em;line-height:1;max-width:14ch}
.sys-intro h1 .accent{color:var(--wrb)}
.sys-intro .lead{font-size:16.5px;color:var(--gray);max-width:620px;margin-top:18px}
.sys-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:44px 0 12px}
.sys-step{border:1px solid var(--line);padding:26px 24px;background:#fff}
.sys-step .n{
  font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--wrb);
  display:block;margin-bottom:12px;
}
.sys-step h3{font-size:19px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.sys-step p{font-size:13.5px;color:var(--gray)}
.sys-points{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 40px;margin:8px 0 8px;max-width:900px}
.sys-point{display:flex;gap:12px;font-size:14px}
.sys-point b{display:block;margin-bottom:1px}
.sys-point span{color:var(--gray)}
.sys-point .dot{flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--wrb);margin-top:8px}
.sys-band{
  border:1px solid var(--line-dark);padding:34px 38px;margin:36px 0 0;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.sys-band h3{font-size:22px;font-weight:800;letter-spacing:-.01em}
.sys-band p{font-size:13.5px;color:var(--gray);margin-top:4px}

/* ---------- home: system teaser band ---------- */
.teaser{
  border:1px solid var(--line-dark);padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  margin-bottom:88px;
}
.teaser .eyebrow{margin-bottom:8px}
.teaser h3{font-size:26px;font-weight:800;letter-spacing:-.01em;max-width:16ch}
.teaser p{font-size:14px;color:var(--gray);margin-top:6px;max-width:52ch}

/* ---------- product detail page ---------- */
.pp{max-width:1180px;margin:0 auto;padding:26px 40px 96px}
.crumb{
  font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gray-lt);margin-bottom:26px;
}
.crumb a{color:var(--gray);text-decoration:none}
.crumb a:hover{color:var(--text)}
.crumb span{margin:0 8px}
.pp-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:start}
.pp-photo{aspect-ratio:4/3;background:var(--bg-soft);overflow:hidden}
.pp-photo img{width:100%;height:100%;object-fit:cover}
.pp-photo .ph{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:500;color:var(--gray-lt);text-align:center;padding:0 20px;
}
.pp-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.pp-thumb{
  width:76px;height:76px;border:1px solid var(--line);overflow:hidden;
  background:var(--bg-soft);cursor:pointer;padding:0;
}
.pp-thumb.sel{border-color:var(--text)}
.pp-thumb img{width:100%;height:100%;object-fit:cover}
.pp-caption{
  font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gray-lt);margin-top:12px;
}
.pp-info .fits{
  font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gray-lt);display:block;margin-bottom:10px;
}
.pp-info h1{font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.04;letter-spacing:-.01em}
.pp-info .pp-sku{font-size:12px;color:var(--gray-lt);display:block;margin-top:8px}
.pp-price{font-size:26px;font-weight:800;margin:18px 0 4px}
.pp-price .from{font-weight:400;font-size:16px;color:var(--gray)}
.pp-price .unit{font-weight:400;font-size:14px;color:var(--gray-lt)}
.pp-desc{font-size:14.5px;color:var(--gray);margin-bottom:22px}
.pp-add{
  width:100%;background:var(--text);color:#fff;border:1px solid var(--text);
  font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  padding:16px;margin-top:8px;transition:background .15s;
}
.pp-add:hover{background:#2a2e36}
.pp-addrow{display:flex;gap:14px;align-items:center;margin-top:20px}
.pp-addrow .qtybox{flex-shrink:0}
.pp-addrow .pp-add{margin-top:0}
.pp-meta{margin-top:26px;border-top:1px solid var(--line)}
.pp-meta div{
  display:flex;justify-content:space-between;gap:16px;padding:11px 0;
  border-bottom:1px solid var(--line);font-size:13px;
}
.pp-meta dt{color:var(--gray);font-weight:500}
.pp-meta dd{color:var(--text);font-weight:600;text-align:right}

/* product detail extra sections (hidden until content) */
.pp-section{max-width:1180px;margin:64px auto 0;padding:0 40px}
.pp-section h2{
  font-size:22px;font-weight:800;letter-spacing:-.01em;
  padding-bottom:14px;border-bottom:1px solid var(--line-dark);margin-bottom:24px;
}
.pp-longtext{font-size:14.5px;color:var(--gray);max-width:760px}
.pp-longtext p{margin-bottom:14px}
.pp-video{aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden;max-width:900px}
.pp-video iframe{width:100%;height:100%;border:0}
.reviews{display:flex;flex-direction:column;gap:20px;max-width:820px}
.review{border:1px solid var(--line);padding:18px 20px}
.review-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.review .who{font-weight:700;font-size:14px}
.review .stars{color:var(--wrb);font-size:13px;letter-spacing:2px}
.review .body{font-size:13.5px;color:var(--gray)}
.pp-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:900px}
.pp-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--bg-soft)}

/* ---------- shared: options / notices / qty ---------- */
.optgroup{margin-bottom:20px}
.optlabel{
  font-size:11px;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;margin-bottom:9px;display:block;
}
.optsub{
  font-size:10px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gray-lt);margin:9px 0 7px;display:block;
}
.optrow{display:flex;flex-wrap:wrap;gap:8px}
.optbtn{
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:500;
  padding:10px 16px;flex:1 1 auto;min-width:90px;transition:all .12s;color:var(--text);
}
.optbtn small{display:block;font-weight:500;font-size:11.5px;margin-top:1px;color:var(--gray-lt)}
.optbtn.sel{background:var(--text);border-color:var(--text);color:#fff}
.optbtn.sel small{color:rgba(255,255,255,.75)}
.optbtn:hover:not(.sel){border-color:var(--text)}
.noticebox{
  border:1px solid var(--line);border-left:3px solid var(--wrb);
  padding:12px 14px;font-size:13px;color:var(--gray);margin-bottom:14px;
}
.noticebox b{
  color:var(--wrb);font-size:11px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;display:block;margin-bottom:2px;
}
.noticebox.warn{border-left-color:var(--warn)}
.noticebox.warn b{color:var(--warn)}
.noticebox.promo{border-left-color:var(--ok)}
.noticebox.promo b{color:var(--ok)}
.qtyrow{display:flex;align-items:center;gap:12px}
.qtybox{display:flex;border:1px solid var(--line)}
.qtybox button{background:#fff;border:none;width:40px;height:40px;font-size:17px;font-weight:600;color:var(--text)}
.qtybox button:hover{background:var(--bg-soft)}
.qtybox span{
  width:46px;display:flex;align-items:center;justify-content:center;
  font-weight:700;border-left:1px solid var(--line);border-right:1px solid var(--line);
  background:#fff;
}

/* ---------- order drawer ---------- */
.overlay{
  position:fixed;inset:0;background:rgba(17,19,24,.45);z-index:90;
  opacity:0;pointer-events:none;transition:opacity .18s;
}
.overlay.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:100;
  width:min(440px,100vw);background:#fff;border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .22s ease;
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  padding:20px 26px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;
}
.drawer-head h2{font-size:13px;font-weight:600;letter-spacing:.2em;text-transform:uppercase}
.xbtn{
  background:none;border:1px solid var(--line);font-size:18px;line-height:1;color:var(--gray);
  width:34px;height:34px;flex-shrink:0;transition:all .12s;
}
.xbtn:hover{background:var(--text);color:#fff;border-color:var(--text)}
.drawer-body{flex:1;overflow-y:auto;padding:20px 26px}
.empty{color:var(--gray);font-size:14px;text-align:center;padding:40px 10px}
.line-item{
  border:1px solid var(--line);
  padding:14px 16px;margin-bottom:10px;display:flex;justify-content:space-between;gap:12px;
  background:#fff;
}
.line-item .n{font-weight:700;font-size:14px}
.line-item .o{font-size:12px;color:var(--gray);margin-top:1px}
.line-item .p{font-weight:700;font-size:14.5px;white-space:nowrap}
.li-controls{display:flex;align-items:center;gap:14px;margin-top:10px}
.li-qty{display:flex;align-items:center;border:1px solid var(--line)}
.li-qty button{
  background:#fff;border:none;width:28px;height:28px;font-size:14px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:center;
}
.li-qty button:hover{background:var(--bg-soft)}
.li-qty button:disabled{color:#d1d5db;cursor:default;background:#fff}
.li-qty span{
  min-width:32px;text-align:center;font-size:13px;font-weight:700;
  border-left:1px solid var(--line);border-right:1px solid var(--line);
  line-height:28px;background:#fff;
}
.line-item .rm{
  background:none;border:none;color:var(--gray);font-size:12px;font-weight:500;padding:2px 0;
  text-decoration:underline;text-underline-offset:2px;
}
.line-item .rm:hover{color:var(--err)}
.line-item .lock{
  font-size:11.5px;color:var(--wrb);font-weight:500;margin-top:8px;display:block;
}
.subtotal{
  display:flex;justify-content:space-between;padding:16px 2px;
  font-weight:800;font-size:16px;border-top:1px solid var(--line-dark);margin-top:12px;
}
.drawer-foot{padding:18px 26px;border-top:1px solid var(--line)}
.sendbtn{
  width:100%;background:var(--text);color:#fff;border:1px solid var(--text);
  font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  padding:16px;transition:background .15s;
}
.sendbtn:hover{background:#2a2e36}
.sendbtn:disabled{opacity:.5;cursor:not-allowed}
.finehint{font-size:12px;color:var(--gray);margin-top:10px;text-align:center}
.fieldhint{font-size:12px;color:var(--gray);margin:6px 0 0}
.shipnote{
  display:none;margin-top:10px;padding:10px 12px;text-align:center;
  font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--gray);
  border:1px dashed var(--line);
}
.shipnote.on{display:block}
.shipnote.unlocked{color:var(--ok);border-color:#86c99e}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:-120px;z-index:200;
  transform:translateX(-50%);transition:bottom .25s ease, opacity .25s ease;
  opacity:0;pointer-events:none;
  display:flex;align-items:center;gap:10px;
  background:var(--text);
  padding:13px 24px;box-shadow:0 12px 40px rgba(10,14,20,.3);
  font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:#fff;max-width:calc(100vw - 32px);white-space:nowrap;
}
.toast::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--wrb);flex-shrink:0;
}
.toast.show{bottom:24px;opacity:1;pointer-events:auto}

/* ---------- checkout page ---------- */
.checkout{display:none;max-width:1100px;margin:0 auto;padding:52px 40px 100px}
.checkout.open{display:block}
.checkout-head{margin-bottom:32px}
.backlink{
  background:none;border:none;font-size:11px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gray);padding:4px 0;margin-bottom:16px;
  text-decoration:none;display:inline-block;
}
.backlink:hover{color:var(--text)}
.checkout-head h2{font-size:clamp(30px,4vw,44px);font-weight:800;letter-spacing:-.01em;line-height:1.05}
.checkout-head p{color:var(--gray);font-size:14px;margin-top:8px}
.checkout-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.co-panel{border:1px solid var(--line);padding:26px;background:#fff}
.co-panel h3{
  font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.addon-card{
  border:1px dashed var(--wrb);
  padding:14px 16px;margin-top:14px;background:var(--wrb-tint);
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.addon-card .t{font-size:13.5px;font-weight:700}
.addon-card .d{font-size:12px;color:var(--gray);margin-top:2px}
.addon-add{
  background:var(--wrb);color:#fff;border:none;
  font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  padding:10px 14px;white-space:nowrap;
  transition:background .15s;
}
.addon-add:hover{background:#0b4899}
.formrow{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.formlabel{
  font-size:12px;font-weight:600;display:block;margin:15px 0 6px;color:var(--text);
}
.checkout input,.checkout textarea,.checkout select{
  width:100%;border:1px solid var(--line);
  padding:11px 12px;font-family:var(--body);font-size:16px;
  background:#fff;color:var(--text);
}
.checkout input::placeholder,.checkout textarea::placeholder{color:#b6bcc4}
.checkout input:focus,.checkout textarea:focus,.checkout select:focus{
  outline:none;border-color:var(--wrb);box-shadow:0 0 0 3px rgba(15,92,196,.12);
}
.checkout textarea{resize:vertical;min-height:80px}
.statusmsg{margin-top:10px;font-size:13.5px;font-weight:600;text-align:center;display:none}
.statusmsg.ok{display:block;color:var(--ok)}
.statusmsg.err{display:block;color:var(--err)}

/* ---------- instructions database ---------- */
.guides{display:none;max-width:900px;margin:0 auto;padding:52px 40px 100px}
.guides.open{display:block}
.guides .checkout-head p{max-width:600px}
.guides-search{
  width:100%;max-width:420px;border:1px solid var(--line);
  padding:11px 14px;font-family:var(--body);font-size:14.5px;
  background:#fff;color:var(--text);margin-bottom:36px;
}
.guides-search::placeholder{color:#b6bcc4}
.guides-search:focus{outline:none;border-color:var(--wrb);box-shadow:0 0 0 3px rgba(15,92,196,.12)}
.guide-empty{padding:36px 0;color:var(--gray);font-size:13.5px}
.guide-row{
  border:1px solid var(--line);border-left:3px solid var(--wrb);
  padding:22px 26px;margin-bottom:14px;background:#fff;
  box-shadow:0 1px 2px rgba(17,19,24,.04);
}
.guide-row h3{font-size:17px;font-weight:700;letter-spacing:-.01em;margin-bottom:2px}
.guide-row .gsku{
  font-size:12px;color:var(--gray-lt);margin-bottom:12px;display:block;
}
.guide-links{list-style:none}
.guide-links li{
  padding-left:18px;position:relative;font-size:13.5px;margin-bottom:6px;
}
.guide-links li::before{
  content:"";position:absolute;left:2px;top:9px;width:5px;height:5px;border-radius:50%;
  background:var(--gray-lt);
}
.guide-links a{color:var(--wrb);text-decoration:underline;text-underline-offset:2px;font-weight:500}
.guide-links a:hover{color:#0b4899}
.guide-links .muted{color:var(--gray-lt)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:56px 40px 48px;background:#fff;margin-top:40px}
.foot-inner{
  max-width:1280px;margin:0 auto;display:flex;flex-wrap:wrap;gap:48px;
  justify-content:space-between;align-items:flex-start;
}
footer .logo{font-size:15px}
footer p{font-size:13px;color:var(--gray);max-width:440px;margin-top:12px}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links h4{
  font-size:11px;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gray-lt);margin-bottom:4px;
}
.foot-links a{font-size:13px;color:var(--gray);text-decoration:none}
.foot-links a:hover{color:var(--text)}
.foot-bottom{
  max-width:1280px;margin:40px auto 0;padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12px;color:var(--gray-lt);
}

@media(max-width:980px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{padding-bottom:44px}
  .pp-grid{grid-template-columns:1fr;gap:32px}
  .pp-gallery{grid-template-columns:repeat(2,1fr)}
  .sys-steps{grid-template-columns:1fr}
  .sys-points{grid-template-columns:1fr}
}
@media(max-width:820px){
  .checkout-cols{grid-template-columns:1fr}
}
@media(max-width:640px){
  .topbar{padding:0 18px;height:58px}
  body{padding-top:58px}
  .page-wrap{padding:0 18px}
  .page-head{padding:32px 0 22px}
  .sys-intro{padding:40px 0 8px}
  .teaser,.sys-band{padding:26px 22px}
  .logo{font-size:13px;letter-spacing:.06em}
  .topnav{gap:16px}
  .navlink{font-size:10.5px;letter-spacing:.12em}
  .navlink.hide-sm{display:none}
  .wrap{padding:0 18px}
  section.block{padding:60px 0 8px}
  .grid{grid-template-columns:1fr;gap:44px;padding-bottom:56px}
  .hero{height:66vh;min-height:400px}
  .hero-inner{padding:0 18px 36px}
  .hero-side p{text-align:left}
  .hero-side .cta{justify-content:flex-start}
  .offerbox{padding:26px 22px;margin-bottom:60px}
  .pp{padding:20px 18px 72px}
  .pp-section{padding:0 18px}
  .checkout{padding:40px 18px 80px}
  .guides{padding:40px 18px 80px}
  footer{padding:44px 18px 40px}
  .formrow{grid-template-columns:1fr}
  .qtybox button{width:44px;height:44px}
  .qtybox span{width:48px}
}