:root{
  --green:#071A16;
  --green-2:#0d2a22;
  --ivory:#F3F0E8;
  --white:#F5F5F0;
  --black:#171A18;
  --lime:#C7FF35;
  --amber:#FFB547;
  --chrome:#C9D3D6;
  --line:rgba(23,26,24,.16);
  --line-dark:rgba(245,245,240,.18);
  --pad:clamp(24px,5vw,80px);
  --display:clamp(64px,9vw,150px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"Noto Sans KR",sans-serif;background:var(--ivory);color:var(--black);line-height:1.5}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{max-width:100%;display:block}
.shell{width:min(1500px,calc(100% - var(--pad)*2));margin:0 auto}
.section-dark{background:var(--green);color:var(--white)}
.section-light{background:var(--ivory);color:var(--black)}
.site-header{position:fixed;z-index:50;top:0;left:0;right:0;height:64px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 28px;color:white;background:linear-gradient(to bottom,rgba(0,0,0,.48),rgba(0,0,0,0));backdrop-filter:blur(4px)}
.site-header.scrolled{background:rgba(7,26,22,.88);border-bottom:1px solid rgba(255,255,255,.12)}
.brand{font-weight:600;letter-spacing:.25em;font-size:18px}
.main-nav{display:flex;gap:32px;font-size:12px;letter-spacing:.18em}
.utility-nav{justify-self:end;display:flex;gap:18px}
.text-button{border:0;background:none;color:inherit;font-size:11px;letter-spacing:.14em;cursor:pointer}.cart-count{opacity:.7}
.hero{height:min(980px,100vh);min-height:720px;position:relative;overflow:hidden}
.hero-media{position:absolute;inset:0;background:url('assets/home-hero.png') center/cover no-repeat;transform:scale(1.02)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,12,10,.92) 0%,rgba(4,12,10,.62) 33%,rgba(4,12,10,.08) 66%,rgba(4,12,10,.04) 100%)}
.hero-copy{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding-top:70px}
.eyebrow,.micro{font-size:11px;letter-spacing:.22em;font-weight:700;margin:0 0 18px;text-transform:uppercase}.micro{font-size:10px;margin-bottom:10px}.accent-essence{color:var(--lime)}.accent-eye{color:var(--amber)}.accent-pack{color:var(--chrome)}
.hero h1,.final-cta h2{font-size:var(--display);letter-spacing:-.065em;line-height:.82;margin:0 0 28px;font-weight:800}.hero-korean{font-size:clamp(18px,2vw,28px);line-height:1.45;margin:0 0 34px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border:1px solid transparent;font-size:11px;letter-spacing:.15em;font-weight:700;cursor:pointer}.button-accent{background:var(--lime);color:#111}.button-outline{border-color:rgba(255,255,255,.65);color:white}.button-dark{background:var(--green);color:white}.button-light{background:var(--white);color:#111}
.products,.problem,.evidence,.texture,.detail,.technology-system{padding:120px 0}.section-head{display:grid;grid-template-columns:1.35fr .65fr;gap:50px;align-items:end;margin-bottom:58px}.section-head h2,.technology-copy h2,.detail-copy h2,.routine h2{font-size:clamp(44px,5vw,82px);line-height:.96;letter-spacing:-.045em;margin:0}.section-intro{max-width:540px;margin:0;font-size:15px;color:#505651}.on-dark .section-intro{color:rgba(255,255,255,.64)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.product-card{border-top:1px solid var(--line);padding-top:14px}.product-image{aspect-ratio:4/5;background-size:cover;background-position:center;margin-bottom:20px;overflow:hidden}.essence-img{background-image:url('assets/essence.png')}.eye-img{background-image:url('assets/eye-cream.png')}.pack-img{background-image:url('assets/pack.png')}.product-meta{display:grid;grid-template-columns:1fr auto;gap:20px}.product-meta h3{font-size:20px;margin:0 0 10px}.product-meta p{font-size:14px;margin:0;color:#5e625f}.link-arrow{font-size:10px;letter-spacing:.14em;align-self:end;white-space:nowrap}.link-arrow span{font-size:16px}
.problem{padding-top:40px}.problem-list{border-top:1px solid var(--line)}.problem-list a{display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:20px;padding:28px 0;border-bottom:1px solid var(--line);transition:padding .2s ease}.problem-list a:hover{padding-left:10px}.problem-list span,.problem-list em{font-size:10px;letter-spacing:.14em;font-style:normal}.problem-list strong{font-size:clamp(32px,4vw,68px);letter-spacing:-.04em}
.technology{min-height:860px;position:relative;display:flex;align-items:center;overflow:hidden}.technology-bg{position:absolute;inset:0;background:url('assets/technology.png') center/cover no-repeat}.technology-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,17,14,.95),rgba(5,17,14,.58) 42%,rgba(5,17,14,.08) 75%)}.technology-copy{position:relative;z-index:2}.technology-copy{max-width:720px;margin-left:max(var(--pad),calc((100vw - 1500px)/2))}.technology-copy h2{font-size:clamp(58px,7vw,110px)}.technology-copy>p:not(.eyebrow):not(.tech-ingredients){max-width:550px;color:rgba(255,255,255,.7);margin-bottom:30px}.tech-ingredients{font-size:13px;letter-spacing:.16em;margin:22px 0}
.evidence-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.evidence-card{border:1px solid var(--line);padding:34px;min-height:370px;display:flex;flex-direction:column;justify-content:flex-end}.evidence-number{font-size:clamp(70px,9vw,150px);font-weight:800;letter-spacing:-.07em;line-height:.9}.evidence-card h3{font-size:13px;letter-spacing:.08em}.evidence-card p{font-size:13px;color:#666}
.routine{padding:120px 0}.routine-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}.routine ol{list-style:none;margin:0;padding:0;border-top:1px solid var(--line-dark)}.routine li{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line-dark)}.routine li span{font-size:11px;color:rgba(255,255,255,.5)}.routine li strong{font-size:24px}.routine li p{margin:6px 0 0;color:rgba(255,255,255,.6);font-size:14px}
.texture-image{aspect-ratio:16/8.8;background:url('assets/textures.png') center/cover no-repeat;border:1px solid var(--line)}
.detail{padding:100px 0}.detail-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}.detail-grid.reverse{grid-template-columns:.85fr 1.15fr}.detail-grid.reverse .detail-image{order:2}.detail-grid.reverse .detail-copy{order:1}.detail-image{aspect-ratio:4/5;background-size:cover;background-position:center}.essence-detail-img{background-image:url('assets/essence.png')}.eye-detail-img{background-image:url('assets/eye-cream.png')}.pack-model-img{background-image:url('assets/pack-model.png')}.detail-copy .lead{font-size:22px;max-width:500px}.detail-copy dl{margin:38px 0}.detail-copy dl>div{padding:16px 0;border-top:1px solid currentColor;display:grid;grid-template-columns:160px 1fr;gap:20px}.detail-copy dt{font-size:9px;letter-spacing:.14em;opacity:.6}.detail-copy dd{margin:0;font-size:12px;letter-spacing:.08em}
.tech-system-image{aspect-ratio:16/9;background:url('assets/technology.png') center/cover no-repeat;border:1px solid var(--line-dark)}
.final-cta{position:relative;min-height:760px;display:flex;align-items:center;overflow:hidden}.final-cta-bg{position:absolute;inset:0;background:url('assets/home-hero.png') 65% center/cover no-repeat;filter:saturate(.9)}.final-cta-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,17,14,.95),rgba(5,17,14,.55) 45%,rgba(5,17,14,.12))}.final-cta-copy{position:relative;z-index:2}.footer{border-top:1px solid var(--line-dark);padding:30px 0}.footer-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;font-size:10px;letter-spacing:.13em}.footer-grid strong{letter-spacing:.22em}.footer-grid a{justify-self:end}
@media(max-width:980px){.site-header{grid-template-columns:1fr auto}.main-nav{display:none}.hero{min-height:760px}.hero-media{background-position:62% center}.hero-overlay{background:linear-gradient(90deg,rgba(4,12,10,.88),rgba(4,12,10,.32))}.section-head,.routine-grid,.detail-grid,.detail-grid.reverse{grid-template-columns:1fr;gap:34px}.product-grid{grid-template-columns:1fr}.product-image{aspect-ratio:16/11}.evidence-grid{grid-template-columns:1fr}.detail-grid.reverse .detail-image,.detail-grid.reverse .detail-copy{order:initial}.detail-image{aspect-ratio:16/12}.technology-copy{margin:0 var(--pad)}.footer-grid{grid-template-columns:1fr;gap:12px}.footer-grid a{justify-self:start}}
@media(max-width:640px){:root{--pad:20px}.site-header{height:58px;padding:0 18px}.brand{font-size:15px}.utility-nav{gap:9px}.text-button{font-size:9px}.hero{min-height:700px}.hero-copy{justify-content:flex-end;padding-bottom:70px}.hero h1{font-size:clamp(58px,20vw,90px)}.products,.evidence,.texture,.detail,.technology-system,.routine{padding:82px 0}.product-image{aspect-ratio:4/5}.problem-list a{grid-template-columns:44px 1fr;}.problem-list em{grid-column:2}.technology{min-height:720px}.technology-bg{background-position:60% center}.evidence-card{min-height:300px}.routine-grid{gap:50px}.detail-copy dl>div{grid-template-columns:1fr;gap:5px}.final-cta{min-height:640px}.final-cta-bg{background-position:72% center}}

/* Multi-page implementation */
.page-inner,.product-page{padding-top:64px}.page-inner .site-header,.product-page .site-header{background:rgba(7,26,22,.94);border-bottom:1px solid rgba(255,255,255,.12)}
.page-hero{min-height:520px;display:flex;align-items:flex-end;padding:110px 0 70px}.page-hero h1,.tech-page-copy h1{font-size:clamp(70px,9vw,145px);line-height:.82;letter-spacing:-.065em;margin:0}.page-hero-copy>p:last-child,.tech-page-copy>p:last-child{font-size:18px;color:rgba(255,255,255,.7)}
.price{margin-top:18px!important;color:var(--black)!important;font-weight:700}.comparison{padding:20px 0 120px}.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.compare-grid a{padding:34px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:10px}.compare-grid a:last-child{border-right:0}.compare-grid span,.compare-grid em{font-size:10px;letter-spacing:.15em;font-style:normal}.compare-grid strong{font-size:34px;letter-spacing:-.04em}.shop-start{padding:100px 0}.shop-start-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}.shop-start h2{font-size:clamp(60px,8vw,120px);line-height:.82;letter-spacing:-.06em;margin:0 0 28px}.shop-start-image{aspect-ratio:4/3;background-size:cover;background-position:center}
.tech-page-hero{height:760px;position:relative;display:flex;align-items:center;overflow:hidden}.tech-page-bg{position:absolute;inset:0;background:url('assets/technology.png') center/cover no-repeat}.tech-page-copy{position:relative;z-index:2}.tech-overview{padding:120px 0}.tech-map{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}.tech-map span{background:var(--ivory);padding:34px;font-size:20px;font-weight:700;letter-spacing:.05em}.tech-feature{padding:120px 0}.tech-feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.tech-feature-grid.reverse .tech-orb{order:2}.tech-feature-grid h2{font-size:clamp(50px,6vw,94px);line-height:.9;letter-spacing:-.05em;margin:0}.tech-feature-grid p:not(.micro):not(.tech-ingredients){max-width:600px;opacity:.72}.tech-orb{aspect-ratio:1;border-radius:50%;border:1px solid currentColor;box-shadow:inset 0 0 120px currentColor,0 0 80px currentColor;opacity:.8;position:relative}.tech-orb:after{content:'';position:absolute;inset:22%;border:1px solid currentColor;border-radius:50%;box-shadow:0 0 30px currentColor}.tech-green{color:var(--lime)}.tech-amber{color:var(--amber)}.tech-chrome{color:var(--chrome)}.tech-visual{padding:120px 0}.concept-note{font-size:11px;color:rgba(255,255,255,.55);margin-top:20px}
.pdp-hero{min-height:calc(100vh - 64px);display:grid;grid-template-columns:58% 42%}.pdp-media{background-size:cover;background-position:center;min-height:700px}.pdp-info{padding:clamp(60px,7vw,120px);display:flex;flex-direction:column;justify-content:center}.pdp-info h1{font-size:clamp(50px,5.5vw,92px);line-height:.9;letter-spacing:-.055em;margin:0 0 24px}.pdp-benefit{font-size:22px;max-width:520px}.pdp-price{font-size:12px;letter-spacing:.14em;margin:32px 0 18px}.pdp-note{font-size:10px;color:#777}.problem-benefit{padding:100px 0}.split-copy{display:grid;grid-template-columns:1fr 1fr;gap:80px}.split-copy>div+div{border-left:1px solid var(--line-dark);padding-left:80px}.split-copy h2{font-size:clamp(38px,4.2vw,70px);line-height:1.05;letter-spacing:-.04em;margin:0}.pdp-info-section{padding:110px 0}.info-three{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.info-three article{padding:36px;border-right:1px solid var(--line)}.info-three article:last-child{border-right:0}.info-three h3{font-size:24px;line-height:1.2;margin:0 0 24px}.pdp-evidence{padding:40px 0 120px}.evidence-wide{border:1px solid var(--line);padding:50px;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:end}.evidence-wide h2{font-size:clamp(44px,5vw,78px);line-height:.95;letter-spacing:-.05em;margin:0}.pdp-how{padding:110px 0}.how-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}.how-grid h2{font-size:clamp(50px,6vw,90px);line-height:.9;letter-spacing:-.05em;margin:0}.how-step{border-top:1px solid var(--line-dark);padding-top:24px}.how-step span{font-size:11px;opacity:.5}.how-step p{font-size:22px;max-width:580px}.cross-sell{padding:110px 0 150px}.cross-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.cross-grid a{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:end}.cross-image{grid-column:1/-1;aspect-ratio:16/10;background-size:cover;background-position:center}.cross-grid strong{font-size:24px}.cross-grid span{font-size:10px;letter-spacing:.14em}.sticky-buy{position:fixed;z-index:60;left:50%;bottom:18px;transform:translateX(-50%);width:min(920px,calc(100% - 36px));background:rgba(7,26,22,.94);color:white;border:1px solid rgba(255,255,255,.15);backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:space-between;padding:10px 10px 10px 22px}.sticky-buy>span{font-size:12px;letter-spacing:.06em}
@media(max-width:980px){.compare-grid,.tech-map,.info-three{grid-template-columns:1fr}.compare-grid a,.tech-map span,.info-three article{border-right:0;border-bottom:1px solid var(--line)}.shop-start-grid,.tech-feature-grid,.pdp-hero,.split-copy,.evidence-wide,.how-grid{grid-template-columns:1fr}.tech-feature-grid.reverse .tech-orb{order:initial}.pdp-media{min-height:620px}.split-copy>div+div{border-left:0;border-top:1px solid var(--line-dark);padding-left:0;padding-top:40px}.cross-grid{grid-template-columns:1fr}.page-hero,.tech-page-hero{min-height:620px;height:auto}.sticky-buy>span{display:none}.sticky-buy{justify-content:stretch}.sticky-buy .button{width:100%}}
@media(max-width:640px){.page-inner,.product-page{padding-top:58px}.page-hero{padding:90px 0 55px}.pdp-media{min-height:480px}.pdp-info{padding:60px 24px}.pdp-benefit{font-size:18px}.tech-feature,.tech-overview,.tech-visual,.pdp-info-section,.problem-benefit,.pdp-how,.cross-sell{padding:82px 0}.evidence-wide{padding:28px}.how-step p{font-size:18px}}