:root{
  --navy:#0B1B2B; --deep:#071522; --slate:#233447; --amber:#E8A34B; --paper:#F5EFE4; --dawn:#EBD9B8;
  --green:#2F7D5B; --green-lt:#6FCB9F;
  --ink:#10202F; --muted:#4F6171;
  --lt:rgba(245,239,228,.92); --lt2:rgba(245,239,228,.7); --line:rgba(245,239,228,.16);
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box}
html{background:var(--deep);scroll-padding-top:90px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);font-size:18px;line-height:1.55;color:var(--lt);background:var(--paper);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--navy);padding:10px 14px;font-weight:700;z-index:90;border-radius:999px}
.skip:focus{left:8px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
#gl{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block}
main,footer.site{position:relative;z-index:2}

/* ---------- floating pill nav ---------- */
header.site{position:fixed;top:12px;left:0;right:0;z-index:60;pointer-events:none;padding:0 12px}
header.site .wrap{pointer-events:auto;max-width:940px;margin:0 auto;padding:7px 7px 7px 20px;display:flex;align-items:center;gap:4px;border-radius:999px;background:rgba(9,22,36,.82);border:1px solid rgba(245,239,228,.18);box-shadow:0 14px 36px rgba(0,0,0,.28),inset 0 1px 0 rgba(255,255,255,.1)}
@media(min-width:700px){header.site .wrap{-webkit-backdrop-filter:blur(16px) saturate(150%);backdrop-filter:blur(16px) saturate(150%);background:rgba(9,22,36,.62)}}
.brand{margin-right:auto;font-family:var(--display);font-weight:700;letter-spacing:.16em;color:var(--paper);text-decoration:none;font-size:20px}
nav.site{display:flex;gap:2px}
nav.site a{border-radius:999px;padding:9px 13px;min-height:40px;display:inline-flex;align-items:center;font-size:15px;color:var(--lt);text-decoration:none}
nav.site a:hover{background:rgba(245,239,228,.1)}
.depth{margin:0 6px 0 2px;padding:7px 12px;border-radius:999px;background:rgba(245,239,228,.08);font-family:var(--mono);font-size:13px;color:var(--lt2);white-space:nowrap}
.depth b{color:var(--paper);display:inline-block;min-width:3ch;text-align:right}
.nav-cta{display:inline-flex;align-items:center;gap:8px;background:var(--amber);color:var(--navy);border-radius:999px;padding:10px 16px;font-weight:700;text-decoration:none;min-height:44px;white-space:nowrap;transition:transform .25s var(--ease)}
.nav-cta:hover{transform:translateY(-2px)}
@media(max-width:900px){nav.site{display:none}}
@media(max-width:480px){.depth{display:none}header.site .wrap{padding-left:16px}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:12px;min-height:54px;padding:12px 16px 12px 26px;border-radius:999px;background:var(--navy);color:var(--paper);text-decoration:none;border:0;cursor:pointer;font:inherit;font-weight:700;box-shadow:0 14px 30px rgba(11,27,43,.3);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.btn:hover{transform:translateY(-3px);box-shadow:0 20px 40px rgba(11,27,43,.38)}
.btn .ar{flex:none;width:32px;height:32px;padding:7px;border-radius:50%;background:rgba(245,239,228,.16)}
.btn.amber{background:var(--amber);color:var(--navy);box-shadow:0 14px 30px rgba(232,163,75,.32)}
.btn.amber .ar{background:rgba(11,27,43,.14)}
.btn.glass{background:rgba(255,255,255,.5);color:var(--ink);padding:12px 26px;box-shadow:inset 0 0 0 1.5px rgba(11,27,43,.28)}
.btns{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--display);font-weight:700;margin:0;text-wrap:balance}
h2{font-size:clamp(36px,5.2vw,68px);line-height:.98;margin-bottom:14px;color:var(--paper)}
h3{font-size:clamp(22px,2.2vw,28px);line-height:1.1;margin-bottom:6px;color:var(--paper)}
.sub{color:var(--lt);max-width:60ch;margin:0 0 28px;font-size:clamp(17px,1.5vw,20px)}
section{position:relative;padding:clamp(28px,5vh,60px) 0}
.panel{background:rgba(6,19,32,.86);border:1px solid rgba(245,239,228,.14);border-radius:24px;padding:clamp(22px,3.4vw,44px);box-shadow:0 24px 60px rgba(0,0,0,.32),inset 0 1px 0 rgba(255,255,255,.07)}
@media(min-width:900px){.panel{-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);background:rgba(6,19,32,.62)}}

/* ---------- hero: always fits one screen ---------- */
.s-hero{min-height:100svh;display:flex;align-items:center;padding:96px 0 40px;color:var(--ink)}
.hero{position:relative;width:100%}
.hero-copy{max-width:700px}
.chip{display:inline-flex;align-items:center;gap:10px;margin:0 0 16px;padding:8px 16px 8px 12px;border-radius:999px;background:rgba(255,255,255,.55);box-shadow:inset 0 0 0 1px rgba(11,27,43,.14);font-family:var(--mono);font-size:13px;color:var(--ink)}
.chip i{width:9px;height:9px;border-radius:50%;background:#C8493A;box-shadow:0 0 0 4px rgba(200,73,58,.2)}
h1{color:var(--ink);font-size:min(9vw,15.5svh,128px);line-height:.88;letter-spacing:-.01em;margin:0 0 18px}
h1 span{display:block;white-space:nowrap}
h1 .l2{padding-left:.5em;font-size:.5em;line-height:1.05;color:var(--muted);font-weight:600}
h1 .l3{padding-left:.14em}
.lede{font-size:clamp(17px,1.7vw,22px);max-width:36ch;margin:0 0 22px;color:var(--ink)}
.who{margin:18px 0 0;font-size:15px;color:var(--muted)}
.gauge{display:none}
.no-gl .gauge{display:block;max-width:340px;margin-top:20px}
.no-gl .s-hero{background:linear-gradient(180deg,var(--paper),var(--dawn))}
.gauge svg{width:100%;height:auto}
.gauge .tick{stroke:var(--paper);stroke-width:2}.gauge .tick.minor{stroke:rgba(245,239,228,.5);stroke-width:1.5}
.gauge text{fill:var(--paper);font-family:var(--mono);font-size:15px;text-anchor:middle}
.gauge .readout{fill:var(--amber)}
.float{display:none}
@media(min-width:1000px){
  .float{display:block;position:absolute;margin:0;padding:11px 16px;border-radius:20px;background:rgba(9,22,36,.7);color:var(--paper);border:1px solid rgba(245,239,228,.2);box-shadow:0 18px 40px rgba(0,0,0,.28);font-size:15px;line-height:1.3;animation:bob 6s ease-in-out infinite}
  .float span{display:block;font-family:var(--mono);font-size:12px;color:var(--amber)}
  .f1{right:4%;top:6%}.f2{right:30%;bottom:6%;animation-delay:-3s}
  @keyframes bob{50%{transform:translateY(-8px)}}
}
@media (prefers-reduced-motion:reduce){.float{animation:none}}
@media (prefers-reduced-motion:no-preference){
  .hero-copy>*{opacity:0;transform:translateY(24px);animation:up .9s var(--ease) forwards}
  .chip{animation-delay:.05s}h1{animation-delay:.14s}.lede{animation-delay:.28s}.btns{animation-delay:.36s}.who{animation-delay:.44s}
  @keyframes up{to{opacity:1;transform:none}}
}
@media (max-height:640px){.lede{display:none}.who{display:none}}
@media (max-width:520px){.who{display:none}.btns .btn{flex:1 1 auto;justify-content:space-between;padding-left:20px}}

.no-gl body{background:var(--deep)}
.no-gl .panel{background:rgba(11,27,43,.95)}

/* ---------- why ---------- */
.reasons,.rows{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px}
.reasons div,.rows>div{border-top:1px solid var(--line);padding:16px 0 20px}
.reasons p,.rows p{margin:0;color:var(--lt)}
@media(max-width:760px){.reasons,.rows{grid-template-columns:1fr}}

/* ---------- calculator ---------- */
.calc{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:stretch}
@media(max-width:860px){.calc{grid-template-columns:1fr}}
.field{margin:0 0 20px}
.field label{display:block;font-weight:700;margin-bottom:8px;color:var(--paper)}
.field small{display:block;color:var(--lt2);margin-top:6px;font-size:14px}
select,input[type=number]{width:100%;min-height:52px;border-radius:14px;border:1.5px solid rgba(245,239,228,.28);background:rgba(245,239,228,.08);color:var(--paper);font:inherit;padding:10px 14px}
select option{color:#10202F}
input[type=range]{width:100%;accent-color:var(--amber);height:44px}
.rangeout{display:flex;justify-content:space-between;align-items:baseline;font-family:var(--mono);font-size:14px;color:var(--lt2)}
.rangeout b{font-family:var(--display);font-size:34px;color:var(--paper)}
.result{border-radius:20px;background:linear-gradient(160deg,rgba(47,125,91,.4),rgba(15,63,54,.75));border:1px solid rgba(111,203,159,.35);padding:clamp(20px,3vw,32px);display:flex;flex-direction:column;justify-content:center;gap:16px}
.result .k{font-size:15px;color:var(--lt2);margin:0}
.result .v{font-family:var(--display);font-weight:700;line-height:.95;color:var(--paper);margin:2px 0 0;font-size:clamp(46px,6vw,76px)}
.result .v.sm{font-size:clamp(34px,4vw,52px);color:var(--green-lt)}
.result .fine{font-size:14px;color:var(--lt2);margin:0}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 12px;margin:0 -2px 14px;scrollbar-width:thin}
.tab{flex:none;min-height:44px;padding:9px 18px;border-radius:999px;border:1.5px solid rgba(245,239,228,.25);background:transparent;color:var(--lt);font:inherit;font-size:15px;font-weight:600;cursor:pointer}
.tab:hover{background:rgba(245,239,228,.1)}
.tab[aria-selected=true]{background:var(--paper);color:var(--navy);border-color:var(--paper)}
.scn{display:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.scn.on{display:grid}
.scn div{border-radius:18px;background:rgba(245,239,228,.07);border:1px solid var(--line);padding:18px}
.scn h4{margin:0 0 6px;font-family:var(--mono);font-size:12px;font-weight:600;color:var(--amber)}
.scn p{margin:0}
@media(max-width:860px){.scn.on{grid-template-columns:1fr}}

/* ---------- steps ---------- */
ol.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px}
@media(max-width:760px){ol.steps{grid-template-columns:1fr}}
ol.steps li{counter-increment:s;display:grid;grid-template-columns:62px 1fr;gap:10px;border-top:1px solid var(--line);padding:14px 0 16px}
ol.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--display);font-weight:700;font-size:46px;line-height:.95;color:transparent;-webkit-text-stroke:1.5px rgba(245,239,228,.5)}
ol.steps b{display:block;font-size:19px;line-height:1.25;color:var(--paper)}
ol.steps span{color:var(--lt2)}

/* ---------- includes ---------- */
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media(max-width:860px){.two{grid-template-columns:1fr}}
.box{border-radius:20px;background:rgba(245,239,228,.06);border:1px solid var(--line);padding:clamp(18px,2.6vw,30px)}
.box h3{margin-bottom:10px}
ul.check{list-style:none;margin:0;padding:0}
ul.check li{position:relative;padding:8px 0 8px 32px;border-top:1px solid var(--line)}
ul.check li:first-child{border-top:0}
ul.check li::before{content:"";position:absolute;left:0;top:12px;width:20px;height:20px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-6.5' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/20px no-repeat}
.note{margin:18px 0 0;padding:14px 18px;border-radius:16px;background:rgba(232,163,75,.12);border:1px solid rgba(232,163,75,.35);color:var(--lt);font-size:16px}
.guarantee{margin-top:18px;padding:18px 22px;border-radius:20px;background:rgba(47,125,91,.25);border:1px solid rgba(111,203,159,.4);font-size:19px;color:var(--paper)}

/* ---------- spec / faq ---------- */
.spec{margin:0;border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:minmax(130px,1fr) minmax(0,3.2fr);gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}
.spec dt{font-family:var(--display);font-weight:700;font-size:clamp(22px,2.4vw,30px);line-height:1.05;color:var(--paper)}
.spec dd{margin:0;color:var(--lt)}
@media(max-width:620px){.spec div{grid-template-columns:1fr;gap:4px}}
details{border-top:1px solid var(--line)}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;list-style:none;padding:16px 44px 16px 0;font-weight:700;font-size:clamp(17px,1.6vw,20px);position:relative;min-height:44px;color:var(--paper)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:6px;top:10px;font-size:28px;font-weight:400;color:var(--lt2)}
details[open] summary::after{content:"\2212"}
details p{margin:0 0 18px;max-width:64ch;color:var(--lt)}

/* ---------- contact + footer ---------- */
.s-water h2{font-size:clamp(46px,8vw,112px)}
.s-water .panel{max-width:640px;background:rgba(6,40,34,.8)}
.mail{margin-top:22px;color:var(--lt2);font-size:17px}
.mail a{color:var(--paper);font-weight:700}
footer.site{background:rgba(5,14,22,.94);color:var(--lt2);padding:36px 0;font-size:15px}
footer.site a{color:var(--paper)}
.small{font-size:14px;color:var(--lt2)}

/* ---------- legal pages ---------- */
body.legalpg{background:var(--paper);color:var(--ink)}
.legal{background:var(--paper);color:var(--ink)}
.legal .wrap{max-width:760px;padding:120px 20px 90px}
.legal h1{font-size:clamp(40px,6vw,64px);line-height:1;margin-bottom:14px;white-space:normal;color:var(--navy)}
.legal h2{font-size:30px;margin:32px 0 8px;color:var(--navy)}
.legal p,.legal li{color:#243445}
.legal a{color:var(--navy)}
.legal .small{color:var(--muted)}
body.legalpg footer.site{background:var(--deep)}

@media(max-width:700px){h1{font-size:min(19.5vw,12.5svh)}.s-hero{padding-top:88px}}