/* DropAir: unit-white ground, graphite ink, thermostat wire colours used only where they carry meaning */
@font-face{font-family:'Archivo';font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;src:url(/assets/fonts/archivo-var.woff2) format('woff2-variations'),url(/assets/fonts/archivo-var.woff2) format('woff2')}
:root{
  --bg:#ECEEEA;--panel:#F7F8F5;--ink:#1E262B;--ink-2:#4A555B;--rule:#C9CEC8;
  --r:#C8382E;--c:#2C64B4;--y:#D9A817;--g:#2F8A4A;
  --wa:#1F7A4D;--on-wa:#FFFFFF;--band:#1E262B;--on-band:#ECEEEA;--on-band-2:#B9C2C0;
  --font:'Archivo',ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --max:1160px;--radius:6px;
}
@media (prefers-color-scheme:dark){:root{--bg:#182024;--panel:#1F282D;--ink:#E4E8E2;--ink-2:#A9B3B1;--rule:#35424A;--wa:#2E9B63;--band:#243036;color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.6}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-underline-offset:3px}
:focus-visible{outline:2px solid var(--c);outline-offset:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--bg);padding:8px 12px;z-index:50;border-radius:4px}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto;padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
h1,h2,h3{text-wrap:balance;margin:0;letter-spacing:-0.015em;line-height:1.1}
h1{font-size:clamp(34px,5.2vw,56px);font-weight:760;font-variation-settings:"wdth" 122}
h1.sm{font-size:clamp(30px,4.4vw,48px)}
h2{font-size:clamp(25px,3vw,34px);font-weight:720;font-variation-settings:"wdth" 114}
h3{font-size:19px;font-weight:680;line-height:1.3;font-variation-settings:"wdth" 106}
p{margin:0}
.lede{font-size:19px;color:var(--ink-2);max-width:58ch}
.muted{color:var(--ink-2)}
.small{font-size:14px}
.stack{display:grid;gap:16px;align-content:start}
.stack-sm{display:grid;gap:8px;align-content:start}

/* header + mega menu */
.site-header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--rule)}
.hbar{display:flex;align-items:center;gap:24px;min-height:66px}
.wm{font-weight:800;font-size:21px;text-decoration:none;letter-spacing:-0.01em;font-variation-settings:"wdth" 125;display:inline-flex;align-items:center;gap:8px}
.wm svg{width:22px;height:22px}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav>li{list-style:none;position:static}
.nav ul{list-style:none;margin:0;padding:0}
.nav-top{font:500 15px var(--font);color:var(--ink-2);background:none;border:0;padding:10px 12px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;text-decoration:none;border-radius:4px}
.nav-top:hover,.nav-top[aria-expanded="true"],.nav-top[aria-current="page"]{color:var(--ink)}
.nav-top .chev{width:10px;height:10px;transition:transform .15s}
.nav-top[aria-expanded="true"] .chev{transform:rotate(180deg)}
.mega{position:absolute;left:0;right:0;top:100%;background:var(--panel);border-bottom:1px solid var(--rule);box-shadow:0 18px 30px -24px rgba(0,0,0,.35)}
.mega[hidden]{display:none}
.mega-in{display:grid;grid-template-columns:repeat(var(--cols,3),minmax(0,1fr));gap:8px 32px;padding-block:28px 32px}
.mega-col h3{font-size:13px;color:var(--ink-2);font-weight:600;margin-bottom:10px;letter-spacing:0}
.mega a.item{display:grid;gap:2px;padding:10px 12px;margin:0 -12px;border-radius:4px;text-decoration:none}
.mega a.item:hover{background:var(--bg)}
.mega a.item b{font-weight:650}
.mega a.item span{font-size:14px;color:var(--ink-2)}
.mega .brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}
.mega .brand-grid a{padding:7px 0;text-decoration:none;font-weight:550;display:flex;gap:8px;align-items:center}
.mega .brand-grid a:hover{text-decoration:underline}
.mega .feature{background:var(--band);color:var(--on-band);border-radius:var(--radius);padding:20px;display:grid;gap:10px;align-content:start}
.mega .feature p{color:var(--on-band-2);font-size:14px}
.menu-btn{display:none;margin-left:auto;background:none;border:1.5px solid var(--ink);border-radius:4px;padding:8px 10px;color:var(--ink);font:600 14px var(--font)}
.hdr-cta{margin-left:8px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px var(--font);border-radius:4px;padding:12px 18px;text-decoration:none;border:1.5px solid var(--ink);color:var(--ink);background:transparent;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--panel)}
.btn.wa{background:var(--wa);border-color:var(--wa);color:var(--on-wa)}
.btn.wa:hover{filter:brightness(1.07)}
.btn.sm{font-size:14px;padding:8px 12px}
.btn.big{font-size:17px;padding:15px 20px;width:100%}
.btn.on-band{border-color:var(--on-band);color:var(--on-band)}
.btn.on-band:hover{background:transparent;filter:brightness(1.2)}
.wa-ico{width:16px;height:16px;flex:none}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* sections */
section{padding-block:64px;border-bottom:1px solid var(--rule)}
section.flush{border-bottom:0}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.sec-head p{max-width:52ch}
.band{background:var(--band);color:var(--on-band);border-bottom:0}
.band p,.band .muted{color:var(--on-band-2)}
.ribbon{display:grid;gap:3px}
.ribbon i{display:block;height:4px}
.ribbon i:nth-child(1){background:var(--r)}.ribbon i:nth-child(2){background:var(--c)}.ribbon i:nth-child(3){background:var(--ink-2)}.ribbon i:nth-child(4){background:var(--y)}.ribbon i:nth-child(5){background:var(--g)}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center;padding-block:56px 56px}
.hero>*{min-width:0}
.picker{display:grid;gap:12px;margin-top:8px}
.picker-label{font-size:14px;font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:500 14px var(--font);border:1px solid var(--ink);background:transparent;color:var(--ink);border-radius:3px;padding:7px 12px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.diagram{background:var(--panel);border:1px solid var(--rule);border-radius:var(--radius);padding:14px}
.diagram svg{display:block;width:100%}
.diagram figcaption{font-size:14px;color:var(--ink-2);padding:6px 6px 2px}

/* page head */
.crumbs{font-size:14px;color:var(--ink-2);padding-top:22px}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--rule)}
.crumbs a{color:var(--ink-2)}
.page-head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:48px;align-items:center;padding-block:24px 56px}
.page-head>*{min-width:0}
.page-head.single{grid-template-columns:minmax(0,1fr);max-width:820px}

/* tables */
.tbl{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:16px;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:14px 12px;border-bottom:1px solid var(--rule);vertical-align:top}
thead th{font-size:14px;font-weight:600;color:var(--ink-2)}
tbody th{font-weight:600;width:36%;font-size:15px}
td.model a{font-weight:720;font-size:21px;text-decoration:none;font-variation-settings:"wdth" 112}

/* product cards row, models */
.models{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:0;border-top:1.5px solid var(--ink)}
.model-card{display:grid;gap:10px;align-content:start;padding:22px 20px 24px 0;text-decoration:none;border-bottom:1px solid var(--rule)}
.model-card+.model-card{padding-left:20px;border-left:1px solid var(--rule)}
.model-card svg{width:100%;max-width:150px;height:auto}
.model-card b{font-size:22px;font-weight:720;font-variation-settings:"wdth" 112}
.model-card span{color:var(--ink-2);font-size:15px}
.model-card:hover b{text-decoration:underline}

/* brand terminal grid */
.terms{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.terms>*{display:flex;align-items:center;gap:10px;padding:14px;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);text-decoration:none;font-weight:600}
.terms a:hover{background:var(--panel)}
.terms span.plain{font-weight:500;color:var(--ink-2)}
.screw{width:12px;height:12px;border-radius:50%;border:1.5px solid currentColor;position:relative;flex:none;opacity:.8}
.screw::after{content:"";position:absolute;left:1px;right:1px;top:50%;height:1.5px;margin-top:-.75px;background:currentColor}

/* rows list */
.rows{display:grid}
.rows>*{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--rule);text-decoration:none}
.rows .t{font-weight:650;font-size:18px}
.rows .with-glyph{grid-template-columns:auto minmax(0,1fr) auto}
.glyph{width:46px;height:46px;border:1.5px solid var(--ink);border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:15px}

/* two option panel */
.opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid color-mix(in srgb,var(--on-band) 25%,transparent)}
.opts>div{padding:28px 28px 0 0;display:grid;gap:12px;align-content:start}
.opts>div+div{padding-left:28px;border-left:1px solid color-mix(in srgb,var(--on-band) 25%,transparent)}

/* checks, steps */
.checks{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.checks li{padding-left:24px;position:relative}
.checks li::before{content:"";position:absolute;left:2px;top:.6em;width:10px;height:5px;border-left:2px solid var(--g);border-bottom:2px solid var(--g);transform:rotate(-45deg)}
.steps{margin:0;padding:0;list-style:none;counter-reset:s;display:grid;gap:18px}
.steps li{counter-increment:s;display:grid;grid-template-columns:36px minmax(0,1fr);column-gap:14px}
.steps li::before{content:counter(s);grid-row:span 2;width:30px;height:30px;border-radius:50%;border:1.5px solid currentColor;display:grid;place-items:center;font-weight:700;font-size:14px}
.steps span{color:var(--ink-2);font-size:16px}
.band .steps span{color:var(--on-band-2)}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px}
.grid2>*{min-width:0}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.grid3>*{min-width:0}
.feat{border-top:1.5px solid var(--ink);padding-top:16px;display:grid;gap:6px;align-content:start}
.feat p{color:var(--ink-2)}

/* faq */
details{border-bottom:1px solid var(--rule);padding:16px 0}
summary{cursor:pointer;font-weight:650;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-weight:400;font-size:24px;line-height:1;color:var(--ink-2);flex:none}
details[open] summary::after{content:"\2212"}
details>div{margin-top:10px;color:var(--ink-2);max-width:70ch}

/* product page */
.pgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;padding-block:24px 56px}
.pgrid>*{min-width:0}
.gallery{background:var(--panel);border:1px solid var(--rule);border-radius:var(--radius);aspect-ratio:4/3;display:grid;place-items:center;overflow:hidden}
.gallery img{width:100%;height:100%;object-fit:contain}
.quote{border:1.5px solid var(--ink);border-radius:var(--radius);padding:22px;display:grid;gap:14px;background:var(--panel)}
.quote h2{font-size:21px}
.q-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:12px}
.fld{display:grid;gap:6px;font-size:14px;font-weight:600}
.fld input,.fld select{font:500 16px var(--font);color:var(--ink);background:var(--bg);border:1px solid var(--rule);border-radius:4px;padding:10px;width:100%}
.seg{border:0;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.seg legend{font-size:14px;font-weight:600;margin-bottom:6px;padding:0}
.seg label{position:relative}
.seg input{position:absolute;opacity:0}
.seg span{display:block;text-align:center;border:1px solid var(--ink);border-radius:4px;padding:10px 6px;font-size:14px;font-weight:600;cursor:pointer}
.seg input:checked+span{background:var(--ink);color:var(--bg)}
.seg input:focus-visible+span{outline:2px solid var(--c);outline-offset:2px}
.err{color:var(--r);font-size:14px}
.mbar{display:none}

/* article */
.article{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding-block:24px 64px}
.article>*{min-width:0}
.prose{max-width:70ch;font-size:18px;line-height:1.7}
.prose>*+*{margin-top:1.1em}
.prose h2{margin-top:1.8em;font-size:clamp(24px,2.6vw,30px)}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li+li{margin-top:.4em}
.prose table{font-size:16px}
.prose a{color:var(--c)}
.meta{font-size:14px;color:var(--ink-2);display:flex;gap:14px;flex-wrap:wrap}
.aside{position:sticky;top:90px;align-self:start;display:grid;gap:20px}
.aside-box{border:1.5px solid var(--ink);border-radius:var(--radius);padding:20px;display:grid;gap:12px;background:var(--panel)}
.sources{font-size:15px}
.sources li{margin-top:6px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:0 32px}
.post-card{display:grid;gap:8px;padding:22px 0;border-top:1.5px solid var(--ink);text-decoration:none;align-content:start}
.post-card b{font-size:20px;line-height:1.25;font-weight:680}
.post-card:hover b{text-decoration:underline}
.post-card .muted{font-size:15px}
.topic{font-size:13px;font-weight:600;color:var(--c)}

/* footer */
.site-footer{padding-block:0;font-size:15px;color:var(--ink-2)}
.fcols{display:grid;grid-template-columns:1.5fr repeat(4,minmax(0,1fr));gap:28px;padding-block:48px 28px}
.fcols>*{min-width:0}
.fcols h2{font-size:15px;margin-bottom:12px;color:var(--ink);font-variation-settings:normal;letter-spacing:0}
.fcols ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fcols a{text-decoration:none}
.fcols a:hover{color:var(--ink);text-decoration:underline}
.fbase{border-top:1px solid var(--rule);padding-block:18px 32px;font-size:14px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

.consent{position:fixed;left:16px;right:16px;bottom:16px;z-index:30;max-width:520px;margin-left:auto;background:var(--panel);border:1.5px solid var(--ink);border-radius:var(--radius);padding:16px;display:grid;gap:12px;font-size:15px}
.consent[hidden]{display:none}
@media (max-width:960px){
  .nav,.hdr-cta{display:none}
  .menu-btn{display:inline-flex}
  .nav.open{display:block;position:absolute;left:0;right:0;top:100%;background:var(--panel);border-bottom:1px solid var(--rule);max-height:calc(100vh - 66px);overflow:auto;padding:8px 18px 20px}
  .nav.open>li{border-bottom:1px solid var(--rule)}
  .nav.open .nav-top{width:100%;justify-content:space-between;padding:14px 0;font-size:17px;color:var(--ink)}
  .nav.open .mega{position:static;box-shadow:none;border:0;background:transparent}
  .nav.open .mega .wrap{padding:0}
  .mega-in{grid-template-columns:1fr !important;padding-block:4px 16px;gap:4px}
  .mega .feature{display:none}
  .hero,.page-head,.pgrid,.grid2,.article{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .aside{position:static}
  .fcols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fcols>:first-child{grid-column:1/-1}
  .opts{grid-template-columns:1fr}
  .opts>div+div{padding-left:0;border-left:0;border-top:1px solid color-mix(in srgb,var(--on-band) 25%,transparent);margin-top:28px}
  .model-card+.model-card{padding-left:0;border-left:0}
  .model-card{padding-right:0}
  section{padding-block:44px}
  .mbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:15;gap:12px;align-items:center;justify-content:space-between;background:var(--bg);border-top:1px solid var(--rule);padding:10px max(18px,env(safe-area-inset-right,0px)) calc(10px + env(safe-area-inset-bottom,0px)) max(18px,env(safe-area-inset-left,0px))}
  .mbar[hidden]{display:none}
  .mbar>div{display:grid;line-height:1.3}
  body.has-mbar{padding-bottom:72px}
}
@media (max-width:520px){
  .q-grid,.seg{grid-template-columns:1fr}
  .hide-sm{display:none}
  .rows>*{grid-template-columns:minmax(0,1fr)}
  .rows .with-glyph{grid-template-columns:auto minmax(0,1fr)}
  .rows .with-glyph .btn{grid-column:2;justify-self:start}
  body{font-size:16px}
  .prose{font-size:17px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.mbar,.aside{display:none}}
.shop-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}
.shop-card{display:grid;gap:8px;align-content:start;border:1px solid var(--rule);border-radius:var(--radius);padding:16px;background:var(--panel)}
.shop-img{display:grid;place-items:center;aspect-ratio:4/3;overflow:hidden}
.shop-img svg{width:100%;height:auto;max-width:240px}
.shop-name{font-size:19px;font-weight:700;text-decoration:none;color:var(--ink)}
.shop-name:hover{text-decoration:underline}
.gallery svg{width:80%;height:auto}