:root{--ink:#0f1d2b;--muted:#566474;--navy:#0b2a4a;--navy2:#123c66;--copper:#d9481f;--copper2:#b73a16;--aqua:#1f9bd7;--paper:#f1f6fa;--line:#dbe4ec}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased;background:#fff}
h1,h2,h3{line-height:1.1;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,5.4vw,4rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #f2b134;outline-offset:2px}
.preview-bar{background:var(--copper);color:#fff;font-size:.82rem;padding:.5rem 1rem;text-align:center}
.nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem clamp(1rem,4vw,3rem);background:#fff;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:800;font-size:1.25rem;text-decoration:none;color:var(--navy)}
.mark{flex:none;width:22px;height:28px;background:linear-gradient(180deg,var(--copper) 0 50%,var(--aqua) 50%);border-radius:50% 50% 50% 50%/60% 60% 40% 40%;clip-path:polygon(50% 0,100% 55%,100% 100%,0 100%,0 55%)}
.brand em{font-style:normal;font-weight:600;color:var(--muted)}
.nav nav{display:flex;gap:1.5rem}.nav nav a{text-decoration:none;color:var(--muted);font-weight:500}.nav nav a:hover{color:var(--navy)}
.btn{display:inline-block;background:var(--copper);color:#fff;text-decoration:none;border:0;border-radius:10px;padding:.7rem 1.1rem;font-weight:700;font-size:.95rem;cursor:pointer}
.btn:hover{background:var(--copper2)}.btn-lg{padding:1rem 1.5rem;font-size:1.05rem}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.7)}.btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero{position:relative;background:radial-gradient(1200px 500px at 85% 10%,#1a5a8f 0,transparent 60%),var(--navy);color:#fff;overflow:hidden}
.hero-inner{position:relative;z-index:2;max-width:1160px;margin:0 auto;padding:clamp(3rem,8vw,6.5rem) clamp(1rem,4vw,2rem) clamp(5rem,10vw,8rem)}
.hero h1{max-width:15em}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:800;color:var(--copper);margin:0 0 .8rem}
.hero .eyebrow,.dark .eyebrow{color:#ff9a6b}
.lede{font-size:1.15rem;max-width:38em;color:#d6e0ea}
.cta-row{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.6rem 0}
.rating{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:.55rem .9rem;border-radius:999px;font-size:.95rem}
.stars{color:#f5b942;letter-spacing:.08em}
.pipes{position:absolute;right:clamp(-4rem,2vw,4rem);top:0;bottom:0;width:min(42vw,520px);display:flex;gap:26px;justify-content:flex-end;opacity:.16;pointer-events:none}.pipes span{width:34px;background:linear-gradient(90deg,#fff 0 30%,rgba(255,255,255,.4) 30% 70%,#fff 70%);border-radius:0 0 18px 18px}.pipes span:nth-child(1){height:72%}.pipes span:nth-child(2){height:48%}.pipes span:nth-child(3){height:86%}
.trust{display:grid;grid-template-columns:repeat(4,1fr);max-width:1160px;margin:-2.2rem auto 0;position:relative;z-index:3;background:#fff;border-radius:14px;box-shadow:0 12px 30px rgba(11,42,74,.14);border:1px solid var(--line)}
.trust div{padding:1.2rem 1rem;text-align:center;border-right:1px solid var(--line)}.trust div:last-child{border:0}
.trust b{display:block;font-size:1.1rem;color:var(--navy)}.trust span{font-size:.85rem;color:var(--muted)}
.wrap{max-width:1160px;margin:0 auto;padding:clamp(3rem,7vw,5.5rem) clamp(1rem,4vw,2rem)}
.band{background:var(--paper)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.card{border:1px solid var(--line);border-radius:14px;padding:1.5rem;background:#fff}
.card p{color:var(--muted);margin:0}
.card.feature{background:var(--navy);color:#fff;border-color:var(--navy)}.card.feature p{color:#cfdae6}
.ic{display:block;width:44px;height:44px;border-radius:12px;margin-bottom:1rem;background:#e6f3fb;position:relative}
.ic::after{content:'';position:absolute;inset:0;margin:auto}
.ic.drop::after{width:18px;height:18px;background:var(--aqua);border-radius:0 50% 50% 50%;transform:rotate(45deg);top:6px}
.ic.flame{background:#fdeae3}.ic.flame::after{width:18px;height:24px;background:radial-gradient(circle at 50% 75%,#ffb347 0 30%,var(--copper) 31%);border-radius:50% 50% 45% 45%/65% 65% 35% 35%}
.ic.snow::after,.ic.snow::before{content:'';position:absolute;inset:0;margin:auto;width:24px;height:24px;background:linear-gradient(var(--aqua),var(--aqua)) center/3px 100% no-repeat,linear-gradient(var(--aqua),var(--aqua)) center/100% 3px no-repeat;border-radius:2px}.ic.snow::before{transform:rotate(45deg);width:20px;height:20px}
.ic.tank::after{width:18px;height:26px;border-radius:7px;background:linear-gradient(var(--copper) 0 30%,var(--aqua) 30%)}
.ic.drain::after{width:24px;height:24px;border-radius:50%;background:repeating-radial-gradient(circle,var(--aqua) 0 2px,transparent 2px 5px)}
.ic.plug::after{width:22px;height:14px;border:3px solid var(--navy);border-radius:4px;box-sizing:border-box;background:linear-gradient(90deg,transparent 30%,var(--copper) 30% 40%,transparent 40% 60%,var(--copper) 60% 70%,transparent 70%)}
.feature .ic.drop::after{background:#7fd0f5}
.feature .ic{background:rgba(255,255,255,.12)}
.two{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:start}
.src{color:var(--muted);font-size:.9rem}
.link{color:var(--copper2);font-weight:700;text-decoration:none}
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;gap:.8rem}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:12px;padding:1rem 1rem 1rem 3.6rem;position:relative}
.steps li::before{content:counter(s);position:absolute;left:1rem;top:1rem;width:1.9rem;height:1.9rem;border-radius:50%;background:var(--copper);color:#fff;font-weight:800;display:grid;place-items:center}
.steps b{display:block}.steps span{color:var(--muted);font-size:.95rem}
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.why div{border-top:3px solid var(--copper);padding-top:1rem}.why p{color:var(--muted);margin:0}
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
blockquote{margin:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:1.5rem}
blockquote p{margin:0 0 .9rem;font-size:1.05rem}
blockquote p::before{content:"★★★★★";display:block;color:#e8a425;letter-spacing:.1em;margin-bottom:.5rem;font-size:.9rem}
cite{font-style:normal;font-weight:700;color:var(--muted);font-size:.9rem}
.dark{background:var(--navy);color:#fff}.dark a{color:#fff}
.big{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;margin:.2em 0}.big a{text-decoration:none}
.muted{color:#b9c6d3}
.form{background:#fff;color:var(--ink);border-radius:16px;padding:1.6rem;display:grid;gap:.9rem}
.form label{display:grid;gap:.3rem;font-size:.88rem;font-weight:700;color:var(--muted)}
.form input,.form select{font:inherit;color:var(--ink);padding:.8rem .9rem;border:1px solid #cdd3da;border-radius:10px;width:100%;min-width:0;background:#fff}
.form-note{font-size:.82rem;color:var(--muted);margin:0}
footer{text-align:center;padding:2rem 1rem 6rem;font-size:.92rem;border-top:1px solid var(--line)}
.fine{font-size:.8rem;color:var(--muted)}
.callbar{display:none}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}.two{grid-template-columns:1fr;gap:2rem}.why{grid-template-columns:1fr}.quotes{grid-template-columns:1fr}.nav nav{display:none}}
@media (max-width:600px){.cards{grid-template-columns:1fr}.trust{grid-template-columns:1fr 1fr;margin:-1.6rem 1rem 0}.trust div:nth-child(2){border-right:0}.trust div:nth-child(-n+2){border-bottom:1px solid var(--line)}
.btn-lg{width:100%;text-align:center}.nav .btn-sm{padding:.55rem .8rem;font-size:.85rem}.brand{font-size:1.1rem}
.callbar{display:block;position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--copper);color:#fff;text-align:center;font-weight:800;text-decoration:none;padding:1rem;font-size:1.05rem}}

.intro{font-size:1.08rem;color:var(--muted);max-width:40em}
.band .src,.wrap .src{margin-top:1.2rem}
.quotes blockquote p::before{content:none}
.qs{color:#e8a425;letter-spacing:.1em;margin-bottom:.5rem;font-size:.9rem}
blockquote p{font-size:1rem;margin:0 0 .7rem}
blockquote cite{display:block;margin-top:.4rem}
.chips{list-style:none;padding:0;margin:1.4rem 0 0;display:flex;flex-wrap:wrap;gap:.5rem}
.chips li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:.4rem .85rem;font-size:.92rem;font-weight:600;color:var(--navy)}
.preview-bar strong{letter-spacing:.02em}
@media (max-width:600px){.brand em{display:none}.pipes{opacity:.08}}