:root{--ink:#102c43;--muted:#516573;--navy:#092a42;--blue:#1263df;--ice:#e9f3f7;--paper:#faf9f5;--line:#d6e1e6;--green:#235c47}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper)}a{color:inherit}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}a,button,input,select,textarea,summary{outline-offset:4px}button,a{touch-action:manipulation}.wrap{width:min(1160px,calc(100% - 48px));margin:auto}.topline{background:var(--navy);color:#e6f3f9;font-size:12px;letter-spacing:.04em;text-align:center;padding:8px 20px}header{position:sticky;top:0;z-index:20;background:#faf9f5f5;border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}nav{display:flex;align-items:center;justify-content:space-between;min-height:80px;gap:24px}.logo{text-decoration:none;font-weight:850;letter-spacing:-1.2px;font-size:25px}.logo span{color:var(--blue)}.logo small{display:block;font-size:9px;letter-spacing:3px;font-weight:600;line-height:1.3;color:var(--muted)}.navlinks{display:flex;gap:26px;align-items:center;font-size:13px;font-weight:650}.navlinks a{text-decoration:none}.navlinks a:hover{color:var(--blue)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:16px;background:var(--blue);border:1px solid var(--blue);color:white;padding:15px 25px;border-radius:5px;font-weight:700;text-decoration:none;cursor:pointer;min-height:52px}.btn:hover{background:#084fb9}.btn.secondary{background:transparent;color:var(--ink);border-color:#acbdc6}.btn:disabled{opacity:.6;cursor:wait}.smallbtn{padding:10px 17px;min-height:42px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:2px;font-weight:750;color:var(--blue);margin:0 0 18px}.hero{padding:54px 0 36px}.crumb{font-size:12px;color:var(--muted);margin-bottom:30px}.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}h1{font-size:clamp(38px,4.6vw,63px);line-height:1.05;letter-spacing:-2.8px;font-weight:740;margin:0 0 24px}h1 em{font-style:normal;color:var(--blue)}h2{font-size:clamp(29px,3.4vw,43px);line-height:1.13;letter-spacing:-1.5px;margin:0 0 20px}h3{font-size:20px;line-height:1.3;margin:0 0 12px}p{margin:0 0 17px}.lead{font-size:18px;line-height:1.65;color:var(--muted);max-width:550px}.price{font-size:38px;font-weight:760;letter-spacing:-1.7px;margin:22px 0 0}.fine{font-size:13px;color:var(--muted)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 16px}.product-stage{background:var(--ice);border:1px solid #d9e8ec;border-radius:14px;padding:25px 28px 16px;position:relative;overflow:hidden}.product-stage img{width:100%;height:330px;object-fit:contain;mix-blend-mode:multiply}.label{display:inline-block;background:white;color:var(--ink);padding:7px 12px;border-radius:4px;font-size:11px;font-weight:750;letter-spacing:1px;text-transform:uppercase}.product-caption{border-top:1px solid #cadde5;display:flex;justify-content:space-between;gap:10px;padding-top:18px;font-size:12px}.trustline{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;border-top:1px solid var(--line);padding:24px 0;margin-top:42px;font-size:13px}.trustline b{display:block;font-size:14px;margin-bottom:3px}.section{padding:72px 0}.white{background:white}.section-intro{max-width:640px;margin-bottom:32px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{padding:28px;border:1px solid var(--line);border-radius:9px;background:white}.card .num{display:block;font-size:12px;letter-spacing:2px;color:var(--blue);margin-bottom:28px}.card p{color:var(--muted);font-size:15px;margin:0}.split{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:start}.list{list-style:none;margin:0;padding:0}.list li{padding:15px 0;border-bottom:1px solid var(--line)}.list li:before{content:"✓";color:var(--green);margin-right:13px;font-weight:bold}.band{background:var(--navy);color:white}.band .eyebrow{color:#8cd8fa}.band p{color:#c5d9e5}.band .btn.secondary{color:white;border-color:#7793a7}.band .fine{color:#c5d9e5}.lifestyle{display:grid;grid-template-columns:1.2fr 1fr;align-items:stretch;background:var(--navy);border-radius:12px;overflow:hidden}.lifestyle img{width:100%;height:340px;object-fit:cover}.lifestyle-copy{padding:45px;color:white;align-self:center}.lifestyle-copy p{color:#c5d9e5}.lifestyle-copy h2{font-size:33px}.tags{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.tags span{background:var(--ice);padding:6px 12px;border-radius:3px;font-size:13px}.checkpanel{background:var(--ice);border-radius:10px;padding:28px}.checkpanel label{margin-bottom:18px}.check-result{padding:15px;border:1px solid #9db8ca;background:white;border-radius:5px;font-size:14px;margin:16px 0 0}.check-result[hidden]{display:none}label{display:block;font-size:13px;font-weight:650;margin-bottom:17px}input,select,textarea{width:100%;padding:13px 12px;background:white;color:var(--ink);border:1px solid #a6bac7;border-radius:5px;margin-top:6px;min-height:48px}textarea{resize:vertical}.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.ack{display:flex;align-items:flex-start;gap:11px;font-weight:400;line-height:1.5}.ack input{width:18px;height:18px;min-height:0;flex-shrink:0;margin-top:2px}.formbox{padding:32px;background:white;border:1px solid var(--line);border-radius:10px}.formbox .btn{width:100%}.formbox h3{font-size:25px}.summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;margin:20px 0;display:flex;justify-content:space-between;gap:15px}.summary strong{font-size:23px}.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}#orderStatus{margin-top:15px;font-size:14px}#orderStatus:empty{display:none}.receipt{margin-top:25px;padding:28px;border:2px solid var(--green);border-radius:8px;background:#f0f7f3}.receipt[hidden]{display:none}.receipt dl{display:grid;grid-template-columns:1fr 1.4fr;font-size:14px;gap:10px}.receipt dd{margin:0;font-weight:650;overflow-wrap:anywhere}.receipt .actions{margin-bottom:0}details{padding:21px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-size:17px;font-weight:650}details p{margin-top:14px;color:var(--muted);max-width:850px}.faq{max-width:900px}.compare{width:100%;border-collapse:collapse;font-size:14px}.compare th,.compare td{padding:15px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.compare th{background:var(--ice)}footer{background:#061f32;color:white;padding:45px 0 38px}.footgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.footgrid a{display:block;font-size:14px;color:#c9deea;margin-bottom:8px}.footgrid p{font-size:13px;color:#c9deea}.footnote{border-top:1px solid #30495c;margin-top:28px;padding-top:20px;font-size:11px;color:#adbfcc}.mobilebuy{display:none}.cookiebox{position:fixed;bottom:18px;left:18px;max-width:430px;padding:20px;background:white;border:1px solid var(--line);box-shadow:0 8px 40px #05253d25;border-radius:8px;z-index:50;font-size:13px}.cookiebox[hidden]{display:none}.cookiebox p{margin-bottom:12px}.cookiebuttons{display:flex;gap:10px}.cookiebuttons button{padding:9px 16px;min-height:42px}.cookie-settings{background:none;border:0;color:inherit;text-decoration:underline;padding:0;cursor:pointer;font-size:12px}.skip{position:absolute;top:-100px;background:white;padding:10px;z-index:100}.skip:focus{top:10px}.steps{counter-reset:step;list-style:none;padding:0}.steps li{padding:19px 0 19px 48px;position:relative;border-bottom:1px solid var(--line)}.steps li:before{counter-increment:step;content:"0" counter(step);position:absolute;left:0;color:var(--blue);font-size:12px;font-weight:750;top:23px}.steps b{display:block}.steps span{font-size:14px;color:var(--muted)}.pillnote{border-left:3px solid var(--blue);padding:12px 16px;background:var(--ice);font-size:13px}.muted{color:var(--muted)}
@media(max-width:850px){.hero-grid,.split{gap:30px}.navlinks{gap:15px}.navlinks .desktop{display:none}.hero-grid{grid-template-columns:1fr 1fr}h1{font-size:43px}.product-stage{padding:20px}.product-stage img{height:300px}.lifestyle-copy{padding:28px}}
@media(max-width:650px){.wrap{width:calc(100% - 32px)}nav{min-height:68px;gap:12px}.logo{font-size:22px}.navlinks>a:not(.btn){display:none}.topline{font-size:10px}.hero{padding:27px 0 10px}.crumb{margin-bottom:20px}.hero-grid,.split,.grid3,.lifestyle,.footgrid{grid-template-columns:1fr}.hero-grid{gap:25px}h1{font-size:43px;letter-spacing:-1.9px}.lead{font-size:16px}.price{font-size:33px}.actions .btn{flex:1;padding:14px 16px;font-size:14px}.product-stage img{height:265px}.trustline{gap:12px;font-size:11px;margin-top:25px;padding:20px 0}.trustline b{font-size:12px}.section{padding:48px 0}.grid3{gap:12px}.card{padding:23px}.card .num{margin-bottom:16px}.lifestyle img{height:230px}.lifestyle-copy{padding:30px}.checkpanel,.formbox{padding:22px}.row2{grid-template-columns:1fr;gap:0}.compare{font-size:12px}.compare th,.compare td{padding:12px 8px}.mobilebuy{position:fixed;bottom:0;left:0;right:0;background:white;border-top:1px solid var(--line);z-index:30;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:10px 16px;padding-bottom:calc(10px + env(safe-area-inset-bottom))}.mobilebuy b{display:block;font-size:18px}.mobilebuy span{font-size:10px}.mobilebuy .btn{min-height:44px;padding:11px 20px;font-size:13px}footer{padding-bottom:110px}.cookiebox{left:12px;right:12px;bottom:90px;max-width:none}.receipt{padding:20px}.receipt dl{grid-template-columns:1fr}.footgrid{gap:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{header,footer,.cookiebox,.mobilebuy,main>*:not(#order),#order .order-intro,form,#orderStatus{display:none!important}#order{padding:0}.split{display:block}.formbox{border:0}.receipt{display:block!important}.receipt .actions{display:none}.wrap{width:100%}}

/* 2026-10-16 conversion refinement */
.leadish{font-size:18px;line-height:1.55;margin-bottom:10px}.tap-guide{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0}.tap-card{display:flex;gap:12px;align-items:flex-start;padding:17px;border:1px solid var(--line);border-radius:9px;background:#fff}.tap-card.good{background:#f3faf6;border-color:#a9cabb}.tap-icon{width:32px;height:32px;min-width:32px;border-radius:50%;display:grid;place-items:center;background:var(--ice);font-weight:850}.tap-card.good .tap-icon{background:#dff1e7;color:var(--green)}.tap-card b,.tap-card span,.tap-card small{display:block}.tap-card span{font-size:13px;line-height:1.45;color:var(--muted);margin-top:3px}.tap-card small{font-size:11px;line-height:1.4;color:var(--muted);margin-top:6px}.price+br{display:none}
@media(max-width:650px){.tap-guide{grid-template-columns:1fr}.leadish{font-size:16px}.tap-card{padding:15px}}

/* Mobile paid-social refinement */
.product-stage img[src*="hydrogrid-2-stage-kitchen-filter"]{transform:scale(1.38);transform-origin:center}.product-stage img[src*="hydrogrid-domestic-ro-package"]{transform:scale(1.06);transform-origin:center}
@media(max-width:650px){body{overflow-x:hidden}.wrap{max-width:100%}nav{min-width:0}.logo{font-size:20px;min-width:0}.navlinks{min-width:0;gap:8px}.navlinks .btn{white-space:nowrap;padding:9px 11px;min-height:42px;font-size:11px}h1{font-size:36px;line-height:1.04;letter-spacing:-1.4px;overflow-wrap:normal;word-break:normal}.hero .lead{font-size:15px;line-height:1.55}.hero .actions{margin-top:18px}.hero .actions .btn{font-size:13px;min-width:0}.product-stage img[src*="hydrogrid-2-stage-kitchen-filter"]{transform:scale(1.3)}.mobilebuy{max-width:100vw}.mobilebuy .btn{white-space:nowrap;min-width:104px}.topline{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cookiebox{max-height:42vh;overflow:auto}}