:root{--navy:#061629;--blue:#08a9d6;--yellow:#ffd51f;--ink:#0d1b2a;--muted:#627083;--soft:#eef5f7;--line:#d9e3e8;--white:#fff;--r:22px;--shadow:0 24px 65px rgba(6,22,41,.14)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:95px}
body{margin:0;color:var(--ink);font-family:Inter,Arial,sans-serif;line-height:1.65}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(1160px,calc(100% - 40px));margin:auto}
.skip{position:fixed;top:-80px;left:12px;background:#fff;padding:12px;z-index:100}
.skip:focus{top:10px}
.offer{background:var(--yellow);text-align:center;padding:8px;font-size:11px;font-weight:900;letter-spacing:.14em}
.offer b{margin:0 10px}
header{height:78px;position:sticky;top:0;z-index:50;background:rgba(6,22,41,.97);backdrop-filter:blur(12px)}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between}
.logo{color:#fff;text-decoration:none;font-size:22px;font-weight:950;letter-spacing:-.05em}
.logo span{color:var(--yellow)}
.logo small{display:block;font-size:7px;letter-spacing:.35em;color:#8fa6b6}
.nav nav{display:flex;align-items:center;gap:25px}
.nav nav>a{color:#d7e2e9;text-decoration:none;font-size:13px;font-weight:750}
.nav nav>a:hover{color:var(--yellow)}
.buy{background:var(--yellow);color:#101a20!important;padding:11px 18px;border-radius:999px}
.menu{display:none;background:none;border:0}
.menu i{display:block;width:25px;height:2px;background:#fff;margin:5px}
.hero{min-height:720px;position:relative;display:grid;align-items:center;background:var(--navy)}
.hero-img,.shade{position:absolute;inset:0}
.hero-img{background:url('assets/nanopolix-detailing.webp') center/cover}
.shade{background:linear-gradient(90deg,rgba(4,16,31,.98),rgba(4,16,31,.84) 43%,rgba(4,16,31,.08) 77%)}
.hero-content{position:relative;z-index:1}
.hero-content>div{max-width:630px;color:#fff;padding:90px 0}
.eyebrow{color:var(--yellow);font-size:11px;font-weight:900;letter-spacing:.18em;margin:0 0 15px}
.eyebrow.blue{color:#087f9e}
.hero h1{font-size:clamp(50px,7vw,82px);line-height:.96;letter-spacing:-.06em;margin:0 0 25px}
.lead{font-size:19px;color:#cfdae1}
.hero ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:9px 20px;margin:28px 0}
.hero li{font-size:13px;font-weight:750}
.hero li:before{content:'✓';color:var(--yellow);margin-right:7px}
.cta{display:inline-flex;align-items:center;justify-content:center;gap:16px;background:var(--yellow);color:#101a20;text-decoration:none;padding:16px 24px;border-radius:999px;font-weight:900;box-shadow:0 14px 35px rgba(255,213,31,.2);transition:.2s}
.cta:hover{transform:translateY(-2px)}
.fine{color:#91a4b1;font-size:11px}
.bar{background:#fff;border-bottom:1px solid var(--line)}
.bar .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding:25px 0}
.bar .wrap>div{padding:0 22px;border-right:1px solid var(--line)}
.bar .wrap>div:first-child{padding-left:0}
.bar .wrap>div:last-child{border:0}
.bar b,.bar span{display:block}
.bar b{font-size:12px;color:#087f9e}
.bar span{font-size:11px;color:var(--muted)}
.section{padding:105px 0}
h2{font-size:clamp(38px,5vw,62px);line-height:1.03;letter-spacing:-.05em;margin:0 0 24px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:center}
.split>div>p:not(.eyebrow){color:var(--muted);font-size:16px}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:28px}
.checks span{font-size:13px;font-weight:750}
.checks span:before{content:'✓';display:inline-grid;place-items:center;width:21px;height:21px;background:#dff7fb;color:#087f9e;border-radius:50%;margin-right:8px}
.split figure{margin:0;background:#fff;padding:15px;border-radius:var(--r);box-shadow:var(--shadow)}
.split figure img{border-radius:14px}
.split figcaption{font-size:10px;color:var(--muted);padding:10px 3px 0}
.depth{background:var(--navy);color:#fff}
.heading{text-align:center;max-width:780px;margin:0 auto 50px}
.heading>p:last-child{color:#b5c4ce}
.depth-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.depth-grid article{background:#0c243c;border:1px solid #24425b;border-radius:16px;padding:27px}
.depth-grid em{font-style:normal;color:var(--yellow);font-weight:900;font-size:11px}
.depth-grid h3{font-size:20px;margin:17px 0 8px}
.depth-grid p{font-size:13px;color:#b9c8d2}
.depth-grid strong{font-size:11px;color:var(--yellow)}
.note{margin-top:20px;background:#102d48;border-left:3px solid var(--yellow);padding:16px 20px;font-size:13px;color:#c6d3dc}
.steps{background:var(--soft)}
.heading.dark>p:last-child{color:var(--muted)}
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step-grid article{background:#fff;border-radius:15px;padding:28px;border:1px solid var(--line)}
.step-grid article>b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:var(--yellow)}
.step-grid h3{margin:18px 0 7px}
.step-grid p{font-size:13px;color:var(--muted);margin:0}
.care-grid,.storage-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:75px;align-items:center}
.care-grid>div>p:not(.eyebrow),.storage-grid>div>p:not(.eyebrow){color:var(--muted)}
.care aside{background:var(--yellow);border-radius:var(--r);padding:38px;box-shadow:var(--shadow)}
.care aside h3{font-size:26px;margin-top:0}
.care aside li{margin:9px 0;font-size:13px;font-weight:700}
.results{background:var(--soft)}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.result-grid article{background:#fff;border-top:4px solid var(--blue);padding:30px}
.result-grid h3{font-size:21px;margin-top:0}
.result-grid p{font-size:14px;color:var(--muted)}
.center{text-align:center;margin-top:34px}
.cta.navy{background:var(--navy);color:#fff;box-shadow:none}
.storage{background:#fff}
.storage-list article{display:grid;grid-template-columns:45px 1fr;gap:15px;align-items:center;padding:18px 0;border-top:1px solid var(--line)}
.storage-list b{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#dff7fb;color:#087f9e;font-size:11px}
.storage-list span{font-size:14px;font-weight:750}
.faq{background:var(--soft)}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:85px}
.faq-grid>div:first-child>p:last-child{color:var(--muted)}
details{border-top:1px solid #cbd8de}
details:last-child{border-bottom:1px solid #cbd8de}
summary{list-style:none;cursor:pointer;padding:22px 45px 22px 0;font-weight:850;position:relative}
summary::-webkit-details-marker{display:none}
summary:after{content:'+';position:absolute;right:5px;font-size:24px;color:var(--blue)}
details[open] summary:after{content:'–'}
details p{color:var(--muted);font-size:14px;margin:-5px 40px 22px 0}
.close{background:var(--blue);color:#001b25;text-align:center;padding:90px 0}
.close .wrap{max-width:780px}
.close h2{font-size:clamp(44px,6vw,70px)}
.close .eyebrow{color:#003c4d}
.cta.white{background:#fff;box-shadow:0 12px 35px rgba(0,40,55,.15)}
footer{background:#03101e;color:#9bafbc;padding:65px 0 25px}
.foot{display:grid;grid-template-columns:1fr .5fr 1.2fr;gap:70px}
.foot>div>p{font-size:12px}
.foot>div>b{display:block;color:#fff;font-size:12px;margin-bottom:12px}
.foot>div:nth-child(2)>a{display:block;text-decoration:none;font-size:13px;margin:7px 0}
.legal{border-top:1px solid #253847;margin-top:40px;padding-top:22px;font-size:10px}
.mobile-buy{display:none}

@media(max-width:920px){.nav nav{display:none;position:absolute;top:78px;left:0;right:0;background:var(--navy);padding:18px;flex-direction:column;align-items:stretch;gap:0}
.nav nav.open{display:flex}
.nav nav>a{padding:12px}
.menu{display:block}
.split,.care-grid,.storage-grid,.faq-grid{grid-template-columns:1fr;gap:55px}
.depth-grid{grid-template-columns:1fr 1fr}
.foot{grid-template-columns:1fr 1fr}
.foot>div:first-child{grid-column:1/-1}
}

@media(max-width:620px){.wrap{width:min(100% - 28px,1160px)}
.offer{font-size:9px}
.hero{min-height:740px;align-items:end}
.hero-img{background-position:65% center}
.shade{background:linear-gradient(0deg,rgba(4,16,31,1) 10%,rgba(4,16,31,.88) 58%,rgba(4,16,31,.12))}
.hero-content>div{padding:170px 0 55px}
.hero h1{font-size:47px}
.lead{font-size:16px}
.cta{width:100%}
.bar .wrap{grid-template-columns:1fr 1fr}
.bar .wrap>div{padding:12px;border-bottom:1px solid var(--line)}
.section{padding:75px 0}
.checks,.depth-grid,.step-grid,.result-grid{grid-template-columns:1fr}
.care aside{padding:27px}
.foot{grid-template-columns:1fr;gap:28px}
.foot>div:first-child{grid-column:auto}
.mobile-buy{display:flex;position:fixed;z-index:60;bottom:12px;left:12px;right:12px;justify-content:center;gap:12px;background:var(--yellow);padding:15px;border-radius:999px;text-decoration:none;font-weight:900;box-shadow:0 12px 35px rgba(0,0,0,.3)}
footer{padding-bottom:90px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
.cta{transition:none}
}
.layers{background:#fff}.layer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.layer-grid article{background:var(--soft);border-radius:16px;padding:30px;border:1px solid var(--line)}.layer-grid span{color:var(--blue);font-size:10px;font-weight:900}.layer-grid h3{font-size:21px;margin:15px 0 8px}.layer-grid p{font-size:13px;color:var(--muted);margin:0}.layer-note{margin-top:18px;padding:17px 20px;background:#fff7cd;border-left:4px solid var(--yellow);font-size:13px}.identify{background:var(--soft)}.identify-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}.identify-grid>div>p:not(.eyebrow){color:var(--muted)}.mark-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:25px}.mark-list article{background:#fff;padding:22px;border-radius:12px}.mark-list h3{font-size:16px;margin:0 0 6px}.mark-list p{font-size:12px;color:var(--muted);margin:0}.identify aside{background:var(--navy);color:#fff;padding:35px;border-radius:var(--r)}.identify aside li{margin:10px 0;color:#c4d0d8;font-size:13px}.surfaces{background:var(--navy);color:#fff}.surface-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.surface-grid article{padding:25px;border:1px solid #24425b;background:#0c243c;border-radius:13px}.surface-grid b{color:var(--yellow)}.surface-grid p{font-size:12px;color:#b8c8d2}.trouble-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.trouble-grid article{padding:28px;background:var(--soft);border-left:4px solid var(--blue)}.trouble-grid p{font-size:13px;color:var(--muted)}.aftercare{background:var(--soft)}.after-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.habit-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.habit-grid article{background:#fff;padding:22px;border-radius:13px}.habit-grid span{color:var(--blue);font-size:10px;font-weight:900}.habit-grid p{font-size:12px;color:var(--muted)}
@media(max-width:920px){.identify-grid,.after-grid{grid-template-columns:1fr}.layer-grid,.surface-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.layer-grid,.surface-grid,.mark-list,.trouble-grid,.habit-grid{grid-template-columns:1fr}}