:root{
  --paper:#F4F6F7; --white:#FFFFFF; --ink:#132326; --steel:#55666B; --rule:#D3DBDD;
  --tray:#E3E8EA; --cobalt:#2448C9; --cobalt-d:#1B379C; --warn:#9A3B1D; --ok:#1F7A55;
  --radius-s:4px; --radius-m:10px; --radius-l:22px;
  --font:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --wrap:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.55;font-variant-numeric:tabular-nums}
img,svg{max-width:100%;display:block}
a{color:var(--cobalt)} a:hover{color:var(--cobalt-d)}
:focus-visible{outline:3px solid var(--cobalt);outline-offset:2px;border-radius:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3{font-stretch:112%;line-height:1.08;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(2.3rem,5.4vw,4.1rem);font-weight:700}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:650}
h3{font-size:1.2rem;font-weight:650}
p{margin:0 0 1em;max-width:66ch}
.lede{font-size:1.18rem;color:var(--steel);max-width:52ch}
.muted{color:var(--steel)} .small{font-size:.88rem}

/* RUO strip + header */
.ruo-strip{background:var(--ink);color:#DCE5E7;font-size:.82rem;text-align:center;padding:7px 16px}
.site-head{background:var(--white);border-bottom:1px solid var(--rule);position:sticky;top:0;z-index:40}
.head-in{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-stretch:118%;font-size:1.2rem;white-space:nowrap}
.brand svg{width:30px;height:30px}
.nav{display:flex;gap:22px;flex:1}
.nav a{color:var(--ink);text-decoration:none;font-size:.95rem;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current=page]{border-color:var(--cobalt)}
.head-actions{display:flex;gap:10px;align-items:center}
.menu-btn{display:none;background:none;border:1px solid var(--rule);border-radius:var(--radius-s);padding:8px 10px;font:inherit;cursor:pointer}
@media(max-width:940px){
  .nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--white);flex-direction:column;gap:0;padding:8px 24px 18px;border-bottom:1px solid var(--rule)}
  .nav.open{display:flex} .nav a{padding:12px 0;border-bottom:1px solid var(--rule)}
  .menu-btn{display:block} .head-in{gap:12px} .brand span{display:none}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;font-size:.95rem;padding:11px 18px;border-radius:var(--radius-s);border:1px solid var(--cobalt);background:var(--cobalt);color:#fff;text-decoration:none;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--cobalt-d);border-color:var(--cobalt-d);color:#fff}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule)}
.btn.ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn.sm{padding:7px 12px;font-size:.88rem}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.quote-count{background:var(--ink);color:#fff;border-radius:99px;font-size:.75rem;min-width:20px;height:20px;display:inline-grid;place-items:center;padding:0 6px}

/* hero */
.hero{padding:64px 0 56px;background:var(--white);border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.facts{display:flex;gap:28px;flex-wrap:wrap;margin-top:36px;padding-top:22px;border-top:1px solid var(--rule);font-size:.92rem;color:var(--steel)}
.facts strong{display:block;color:var(--ink);font-size:1rem}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:36px}.hero{padding:40px 0}}

/* the kit tray — signature element */
.tray{background:var(--tray);border-radius:var(--radius-l);padding:28px;box-shadow:inset 0 2px 0 rgba(255,255,255,.7),inset 0 -3px 8px rgba(19,35,38,.08)}
.tray-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.well{aspect-ratio:1;border-radius:50%;background:#CBD3D6;box-shadow:inset 0 4px 8px rgba(19,35,38,.25);display:grid;place-items:center}
.cap{width:84%;aspect-ratio:1;border-radius:50%;background:var(--c,#3E6FB0);position:relative;box-shadow:0 3px 0 rgba(0,0,0,.18),inset 0 -4px 0 rgba(0,0,0,.15)}
.cap::after{content:"";position:absolute;inset:26%;border-radius:50%;background:rgba(255,255,255,.22);box-shadow:inset 0 2px 3px rgba(0,0,0,.2)}
.tray-label{margin-top:22px;background:var(--white);border-radius:var(--radius-s);padding:14px 16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.92rem}
.tray-label b{font-stretch:112%}
@media (prefers-reduced-motion:no-preference){
  .tray.animate .cap{animation:drop .5s cubic-bezier(.2,.9,.3,1.2) both;animation-delay:calc(var(--i)*70ms + 150ms)}
  @keyframes drop{from{transform:translateY(-26px) scale(1.12);opacity:0}to{transform:none;opacity:1}}
}
.mini-tray{display:grid;grid-template-columns:repeat(5,9px);gap:3px;padding:6px;background:var(--tray);border-radius:6px;flex:none}
.mini-tray i{width:9px;height:9px;border-radius:50%;background:var(--c)}

/* sections */
section.band{padding:72px 0}
section.band.alt{background:var(--white);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head p{margin:0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--ink);counter-reset:s}
.steps li{list-style:none;padding:20px 22px 0 0;counter-increment:s}
.steps li::before{content:counter(s);display:grid;place-items:center;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--ink);font-weight:700;margin-bottom:14px}
.steps{padding:0;margin:0}
@media(max-width:860px){.steps{grid-template-columns:1fr 1fr;row-gap:24px}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}

.cat-index{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:0 32px}
.cat-index a{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--rule);text-decoration:none;color:var(--ink)}
.cat-index a:hover{color:var(--cobalt)}
.cat-index .dot{width:16px;height:16px;border-radius:50%;background:var(--c);flex:none;box-shadow:inset 0 -2px 0 rgba(0,0,0,.18)}
.cat-index .n{margin-left:auto;color:var(--steel);font-size:.88rem}

/* catalog list */
.catalog-tools{display:grid;grid-template-columns:1fr 260px;gap:14px;margin-bottom:18px}
@media(max-width:640px){.catalog-tools{grid-template-columns:1fr}}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.chip{font:inherit;font-size:.86rem;padding:6px 12px;border-radius:99px;border:1px solid var(--rule);background:var(--white);cursor:pointer;color:var(--ink);display:inline-flex;gap:7px;align-items:center}
.chip i{width:9px;height:9px;border-radius:50%;background:var(--c)}
.chip[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.plist{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-m);overflow:hidden}
.prow{display:grid;grid-template-columns:auto 1.6fr 1fr .6fr .8fr auto;gap:18px;align-items:center;padding:14px 18px;border-top:1px solid var(--rule)}
.prow:first-child{border-top:0}
.prow.head{background:var(--paper);font-size:.8rem;color:var(--steel);padding-top:10px;padding-bottom:10px}
.prow .nm a{color:var(--ink);text-decoration:none;font-weight:650}
.prow .nm a:hover{color:var(--cobalt)}
.prow .nm small{display:block;color:var(--steel);font-size:.84rem;font-weight:400}
.prow .sku{font-size:.84rem;color:var(--steel)}
@media(max-width:780px){
  .prow{grid-template-columns:auto 1fr auto;row-gap:4px}
  .prow .cat,.prow .sku{display:none} .prow.head{display:none}
}
.empty{padding:40px 18px;text-align:center;color:var(--steel)}

/* product */
.crumbs{font-size:.88rem;color:var(--steel);margin:28px 0 20px}
.crumbs a{color:var(--steel)}
.pd{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start;padding-bottom:72px}
@media(max-width:860px){.pd{grid-template-columns:1fr;gap:28px}}
.spec{border-top:1px solid var(--rule);margin:22px 0}
.spec div{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--rule);font-size:.95rem}
.spec dt{color:var(--steel)} .spec dd{margin:0;text-align:right;font-weight:550}
.strengths{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 18px}
.qty{display:flex;align-items:center;border:1px solid var(--rule);border-radius:var(--radius-s);background:var(--white);width:max-content}
.qty button{font:inherit;width:40px;height:42px;border:0;background:none;cursor:pointer;font-size:1.1rem}
.qty input{width:56px;height:42px;border:0;border-left:1px solid var(--rule);border-right:1px solid var(--rule);text-align:center;font:inherit}
.buy-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.notice{border-left:3px solid var(--warn);background:#FBF1EC;padding:14px 16px;border-radius:0 var(--radius-s) var(--radius-s) 0;font-size:.92rem;margin:22px 0}
.notice.info{border-color:var(--cobalt);background:#EEF2FD}
.notice.good{border-color:var(--ok);background:#EAF6F0}
.notice p:last-child{margin:0}

/* forms */
.form{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-m);padding:28px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.fgrid .full{grid-column:1/-1}
@media(max-width:640px){.fgrid{grid-template-columns:1fr}}
label{display:block;font-size:.88rem;font-weight:600;margin-bottom:6px}
label .opt{font-weight:400;color:var(--steel)}
input[type=text],input[type=email],input[type=tel],input[type=url],input[type=number],input[type=search],input[type=password],select,textarea{width:100%;font:inherit;font-size:.98rem;padding:11px 12px;border:1px solid #BCC7CA;border-radius:var(--radius-s);background:var(--white);color:var(--ink)}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--cobalt);outline-offset:0;border-color:var(--cobalt)}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.92rem;margin:0}
.check input{margin-top:4px;width:17px;height:17px;flex:none;accent-color:var(--cobalt)}
.hp{position:absolute;left:-9999px}
.form-status{margin-top:14px;font-size:.92rem}
.form-status.err{color:var(--warn)} .form-status.ok{color:var(--ok)}

/* page layouts */
.page-head{padding:56px 0 32px;background:var(--white);border-bottom:1px solid var(--rule)}
.page-head p{margin-bottom:0}
.two{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;padding:52px 0 80px;align-items:start}
@media(max-width:900px){.two{grid-template-columns:1fr}}
.prose{padding:48px 0 80px}
.prose h2{font-size:1.45rem;margin-top:1.8em}
.prose li{margin-bottom:.4em;max-width:66ch}
.side{display:grid;gap:18px}
.side .box{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-m);padding:22px}
.side .box h3{font-size:1.05rem}

/* faq */
details{border-bottom:1px solid var(--rule);padding:4px 0}
summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--steel)}
details[open] summary::after{content:"−"}
details p{color:var(--steel)}

/* blog */
.posts{display:grid;gap:0;border-top:1px solid var(--rule)}
.post-row{display:grid;grid-template-columns:140px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--rule)}
.post-row a{color:var(--ink);text-decoration:none}
.post-row a:hover h3{color:var(--cobalt)}
.post-row time{color:var(--steel);font-size:.88rem}
@media(max-width:600px){.post-row{grid-template-columns:1fr;gap:4px}}

/* quote table */
.qtable{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-m);overflow:hidden}
.qtable th,.qtable td{padding:12px 14px;border-top:1px solid var(--rule);text-align:left;font-size:.95rem;vertical-align:middle}
.qtable th{background:var(--paper);font-size:.8rem;color:var(--steel);font-weight:600;border-top:0}
.qtable .qty input{width:48px}
.table-scroll{overflow-x:auto}
.linkbtn{background:none;border:0;color:var(--warn);font:inherit;font-size:.88rem;cursor:pointer;text-decoration:underline}

/* account */
.acct-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-m);padding:26px;margin-bottom:22px}
.status-pill{display:inline-block;font-size:.8rem;font-weight:600;padding:3px 10px;border-radius:99px;background:#FFF3D6;color:#7A5A00}
.status-pill.ok{background:#E2F3EA;color:var(--ok)}

/* footer */
.site-foot{background:var(--ink);color:#C9D4D7;padding:56px 0 28px;font-size:.92rem}
.site-foot a{color:#E8EEF0;text-decoration:none} .site-foot a:hover{text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px}
.site-foot h4{color:#fff;font-size:.95rem;margin:0 0 12px;font-stretch:112%}
.site-foot ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.foot-ruo{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:.82rem;color:#9FB0B4;max-width:none}
.foot-ruo p{max-width:none}
.news{display:flex;gap:8px;margin-top:8px}
.news input{background:#0D1A1C;border-color:#3A4D51;color:#fff}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* gate */
.gate{position:fixed;inset:0;background:rgba(19,35,38,.72);z-index:100;display:none;place-items:center;padding:20px}
.gate.show{display:grid}
.gate-box{background:var(--white);border-radius:var(--radius-m);max-width:520px;width:100%;padding:30px}
.gate-box h2{font-size:1.5rem}
.gate-box .actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:var(--radius-s);font-size:.92rem;opacity:0;transition:.25s;z-index:90;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%)}
@media (prefers-reduced-motion:reduce){.toast{transition:none}}
.skip{position:absolute;left:-9999px;top:8px;z-index:200;background:var(--white);padding:8px 12px}
.skip:focus{left:12px}
[hidden]{display:none!important}
.cat-index .n{white-space:nowrap}
.qty input[type=number]{width:56px;border:0;border-left:1px solid var(--rule);border-right:1px solid var(--rule);border-radius:0;padding:0;text-align:center;-moz-appearance:textfield}
.qtable .qty input[type=number]{width:48px}
.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.wrap.two,.wrap.prose{padding-left:24px;padding-right:24px}
@media(max-width:940px){.head-actions{margin-left:auto}}