:root{
  --red:#ef233c;--red-dark:#cf1730;--ink:#111318;--muted:#6c727c;--line:#e8ebef;
  --soft:#f7f8fa;--white:#fff;--green:#078955;--shadow:0 18px 55px rgba(17,19,24,.08);
  --radius:24px;--max:1180px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 36px));margin:auto}

/* utility strip */
.topbar{background:#111318;color:#fff;font-size:12px}
.topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:center;gap:28px;white-space:nowrap}
.topbar-item{display:flex;align-items:center;gap:7px;color:#dfe2e7}
.topbar-dot{width:5px;height:5px;border-radius:50%;background:var(--red)}

/* header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-row{height:78px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px}
.header-logo img{width:205px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:25px}
.desktop-nav a{font-size:14px;font-weight:750;color:#32363c}
.desktop-nav a:hover{color:var(--red)}
.header-actions{display:flex;align-items:center;gap:8px}
.icon-button{display:grid;place-items:center;width:43px;height:43px;border:1px solid var(--line);background:#fff;border-radius:14px;cursor:pointer;position:relative}
.icon-button svg{width:21px;height:21px;stroke:#17191d}
.cart-badge{position:absolute;right:-5px;top:-5px;min-width:21px;height:21px;padding:0 5px;display:grid;place-items:center;border-radius:999px;background:var(--red);color:white;font-size:11px;font-weight:900}
.mobile-menu-btn{display:none}
.mobile-drawer{display:none;position:fixed;inset:0;z-index:120}
.mobile-drawer.open{display:block}
.drawer-overlay{position:absolute;inset:0;background:rgba(10,12,16,.45)}
.drawer-panel{position:absolute;left:0;top:0;bottom:0;width:min(360px,88vw);background:#fff;padding:22px;box-shadow:30px 0 70px rgba(0,0,0,.16);overflow:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-head img{width:180px}
.drawer-close{border:0;background:#f3f4f6;border-radius:12px;width:40px;height:40px}
.drawer-links{padding:18px 0}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;padding:14px 4px;border-bottom:1px solid var(--line);font-weight:750}
.drawer-meta{margin-top:18px;padding:16px;border-radius:16px;background:#f7f8fa;font-size:13px;color:#565d66}

/* home */
.hero{padding:32px 0 18px}
.hero-shell{display:grid;grid-template-columns:1.03fr .97fr;gap:18px;align-items:stretch}
.hero-copy{border-radius:30px;background:linear-gradient(145deg,#111318 0%,#20242a 100%);color:#fff;padding:54px;display:flex;flex-direction:column;justify-content:center;min-height:520px;box-shadow:var(--shadow)}
.kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:900;color:var(--red)}
.hero-copy h1{font-size:clamp(42px,5vw,64px);line-height:1.03;letter-spacing:-.045em;margin:13px 0 18px;max-width:680px}
.hero-copy p{font-size:18px;line-height:1.6;color:#d5d9df;max-width:620px;margin:0}
.hero-actions-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;border:1px solid transparent;font-weight:850;cursor:pointer}
.btn-red{background:var(--red);color:#fff;box-shadow:0 12px 30px rgba(239,35,60,.18)}
.btn-red:hover{background:var(--red-dark)}
.btn-white{background:#fff;color:#17191d}
.btn-outline{border-color:#dfe2e7;background:#fff;color:#17191d}
.hero-image{position:relative;overflow:hidden;border-radius:30px;min-height:520px;background:#eceff2;box-shadow:var(--shadow)}
.hero-image img{width:100%;height:100%;object-fit:cover}
.hero-price{position:absolute;left:18px;bottom:18px;padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:var(--shadow)}
.hero-price strong{display:block;font-size:22px}
.hero-price span{font-size:12px;color:var(--muted)}

.info-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:16px}
.info-card strong{display:block;font-size:20px;line-height:1.1}
.info-card span{display:block;margin-top:5px;font-size:12px;color:var(--muted)}

.section{padding:70px 0}
.section.soft{background:#f7f8fa}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}
.section-head h2{font-size:clamp(31px,4vw,47px);line-height:1.08;letter-spacing:-.04em;margin:8px 0 0}
.section-head p{margin:0;max-width:540px;color:var(--muted)}

.product-intro{display:grid;grid-template-columns:.95fr 1.05fr;gap:30px;align-items:center}
.product-photo{background:#f7f8fa;border:1px solid var(--line);border-radius:26px;padding:16px;box-shadow:0 12px 42px rgba(20,24,33,.05)}
.product-photo img{width:100%;aspect-ratio:1.15;object-fit:cover;border-radius:18px}
.product-copy h3{font-size:36px;line-height:1.1;letter-spacing:-.03em;margin:10px 0 15px}
.product-copy p{color:var(--muted)}
.price-line{display:flex;align-items:baseline;gap:14px;margin:16px 0}
.price-main{font-size:44px;font-weight:950;letter-spacing:-.04em}
.instock{color:var(--green);font-weight:850}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 22px}
.tag{background:#f1f3f5;border-radius:999px;padding:8px 11px;font-size:12px;font-weight:750}

.tiers{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin-top:22px}
.tier{border:1px solid var(--line);border-radius:18px;padding:16px;background:#fff}
.tier.promo{background:#fff8f9;border-color:#ffc8cf}
.tier-label{font-size:13px;color:var(--muted)}
.tier-price{font-size:22px;font-weight:950;margin-top:5px}
.tier-save{font-size:12px;color:var(--red);font-weight:900;margin-top:2px}
.tier-unit{font-size:11px;color:var(--muted);margin-top:6px}

.story-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}
.story-large,.story-small{position:relative;overflow:hidden;border-radius:24px;background:#e9ecef}
.story-large img{width:100%;height:460px;object-fit:cover}
.story-stack{display:grid;grid-template-rows:1fr 1fr;gap:18px}
.story-small img{width:100%;height:221px;object-fit:cover}
.story-caption{position:absolute;left:15px;right:15px;bottom:15px;background:rgba(17,19,24,.82);color:#fff;border-radius:14px;padding:13px 14px;backdrop-filter:blur(10px)}
.story-caption strong{display:block;font-size:17px}
.story-caption span{font-size:12px;color:#d9dde3}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.step{border:1px solid var(--line);border-radius:20px;padding:22px;background:#fff;min-height:180px}
.step-no{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--red);color:#fff;font-weight:950}
.step h3{margin:15px 0 7px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:14px}

/* reviews */
.review-header{display:flex;align-items:end;justify-content:space-between;gap:20px}
.trustbox{border:1px solid var(--line);border-radius:16px;padding:13px 16px;background:#fff;min-width:200px}
.stars{color:#00b67a;font-size:20px;letter-spacing:2px;font-weight:900}
.review-viewport{overflow:hidden;margin-top:22px}
.review-track{display:flex;gap:14px;width:max-content;animation:reviews 40s linear infinite}
.review-track:hover{animation-play-state:paused}
.review{width:320px;min-height:220px;border:1px solid var(--line);border-radius:20px;background:#fff;padding:20px;display:flex;flex-direction:column;box-shadow:0 10px 32px rgba(20,24,33,.05)}
.review h3{margin:10px 0 6px}
.review p{color:#59606a;font-size:14px}
.review footer{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12px}
.review footer span{color:var(--muted)}
.review-note{font-size:10px;color:#949aa3;margin-top:13px}
@keyframes reviews{from{transform:translateX(0)}to{transform:translateX(calc(-334px * 3))}}

.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:28px}
.faq-side{background:#111318;color:#fff;border-radius:23px;padding:26px;height:max-content}
.faq-side p{color:#cfd4dc}
.faq details{padding:18px 0;border-bottom:1px solid var(--line)}
.faq summary{font-weight:850;cursor:pointer}
.faq details p{color:var(--muted)}

/* product page */
.product-page{padding:38px 0 70px}
.product-layout{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.gallery{position:sticky;top:100px;background:#f7f8fa;border-radius:26px;padding:16px;border:1px solid var(--line)}
.gallery-main{width:100%;aspect-ratio:1.1;object-fit:cover;border-radius:18px}
.thumbs{display:flex;gap:9px;margin-top:10px;overflow:auto}
.thumb{width:78px;height:64px;object-fit:cover;border-radius:10px;border:2px solid transparent;cursor:pointer}
.thumb.active{border-color:var(--red)}
.product-info h1{font-size:42px;line-height:1.08;letter-spacing:-.04em;margin:10px 0 14px}
.qty-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:18px 0}
.qty-card{border:1px solid var(--line);border-radius:17px;padding:14px;background:#fff;cursor:pointer}
.qty-card.active,.qty-card:hover{border-color:#f3a8b2;box-shadow:0 8px 24px rgba(239,35,60,.08)}
.qty-top{display:flex;justify-content:space-between;gap:8px;font-weight:850}
.discount{color:var(--red)}
.qty-total{font-size:23px;font-weight:950;margin-top:7px}
.qty-unit{font-size:11px;color:var(--muted)}
.buy-row{display:flex;gap:9px}
.buy-row>*{flex:1}
.microtrust{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:15px}
.micro{background:#f7f8fa;border-radius:13px;padding:11px;font-size:11px}

.spec-section{margin-top:56px;background:#f7f8fa;padding:58px 0}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px}
.spec-list{list-style:none;padding:0;margin:0}
.spec-list li{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}
.spec-list li:last-child{border-bottom:0}
.spec-list span{color:var(--muted)}

.sticky-buy{display:none;position:fixed;z-index:70;bottom:12px;left:50%;transform:translateX(-50%);width:min(710px,calc(100% - 20px));background:rgba(17,19,24,.96);color:#fff;padding:10px 12px;border-radius:16px;align-items:center;gap:10px;box-shadow:0 18px 50px rgba(0,0,0,.22)}
.sticky-buy.show{display:flex}
.sticky-buy .btn{margin-left:auto}

/* legal/service pages */
.page-hero{padding:46px 0 22px}
.page-hero-box{background:linear-gradient(145deg,#f7f8fa,#fff);border:1px solid var(--line);border-radius:25px;padding:38px}
.page-hero h1{font-size:clamp(36px,5vw,54px);line-height:1.06;letter-spacing:-.04em;margin:9px 0 10px}
.page-hero p{color:var(--muted);max-width:700px;margin:0}
.legal-layout{display:grid;grid-template-columns:235px 1fr;gap:30px;align-items:start;padding:10px 0 72px}
.legal-nav{position:sticky;top:100px;background:#f7f8fa;border:1px solid var(--line);border-radius:18px;padding:14px}
.legal-nav b{display:block;padding:7px 8px 10px}
.legal-nav a{display:block;padding:8px;border-radius:9px;font-size:12px}
.legal-nav a:hover{background:#fff}
.legal-content{max-width:820px}
.legal-content section{padding:22px 0;border-bottom:1px solid var(--line)}
.legal-content h2{font-size:24px;margin:0 0 9px;line-height:1.2}
.legal-content p{color:#4f5660;margin:0}
.legal-content ul{color:#4f5660}
.legal-content a{color:#0c5bd7;text-decoration:underline}

/* contact/cart */
.cart-card,.checkout-card{max-width:840px;margin:44px auto;padding:26px;border:1px solid var(--line);border-radius:22px;background:#fff}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .full{grid-column:1/-1}
label{display:block;font-size:12px;font-weight:800;margin:9px 0 5px}
input,textarea,select{width:100%;border:1px solid #dfe2e7;border-radius:11px;padding:12px;background:#fff}
.summary{background:#f7f8fa;border-radius:16px;padding:16px}

/* footer */
.footer{background:#111318;color:#d9dde3;padding:52px 0 18px}
.footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;gap:25px}
.footer-brand img{width:215px;background:#fff;border-radius:14px}
.footer h4{color:#fff;margin:0 0 13px;font-size:15px}
.footer a{display:block;color:#d9dde3;font-size:13px;margin:8px 0}
.footer a:hover{color:#fff}
.footer p{font-size:12px;color:#aeb4bd}
.footer-card{border:1px solid #2d3138;border-radius:15px;padding:13px;background:#171a20;margin-bottom:9px}
.footer-card strong{color:#fff}
.footer-bottom{margin-top:30px;padding-top:16px;border-top:1px solid #2b2f36;display:flex;justify-content:space-between;gap:18px;font-size:11px;color:#9299a2}

.cookie{position:fixed;z-index:140;left:14px;bottom:14px;width:min(340px,calc(100% - 28px));background:#111318;color:#fff;padding:16px;border-radius:17px;box-shadow:0 18px 50px rgba(0,0,0,.28)}
.cookie p{font-size:12px;color:#d3d7de}
.cookie button{margin-top:7px}

@media(max-width:980px){
  .desktop-nav{display:none}.mobile-menu-btn{display:grid}.header-row{grid-template-columns:auto 1fr auto}.header-actions{justify-self:end}
  .hero-shell,.product-intro,.story-grid,.product-layout,.spec-grid,.faq-grid{grid-template-columns:1fr}
  .hero-copy,.hero-image{min-height:450px}
  .gallery{position:relative;top:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .legal-layout{grid-template-columns:1fr}.legal-nav{position:relative;top:auto}
  .steps,.tiers,.info-strip{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:15px}.container{width:min(var(--max),calc(100% - 22px))}
  .topbar{overflow:hidden}.topbar-inner{justify-content:flex-start;gap:14px;overflow-x:auto;padding:7px 0;min-height:34px}.topbar-inner::-webkit-scrollbar{display:none}
  .header-row{height:68px;grid-template-columns:44px 1fr 44px;gap:8px}
  .header-logo{justify-self:center}.header-logo img{width:170px}
  .header-actions .phone-action{display:none}
  .icon-button{width:40px;height:40px;border-radius:12px}
  .hero{padding-top:14px}.hero-shell{gap:10px}
  .hero-copy{padding:28px 21px;min-height:380px;border-radius:23px}
  .hero-copy h1{font-size:39px}.hero-copy p{font-size:15px}
  .hero-image{min-height:320px;max-height:360px;border-radius:23px}
  .hero-image img{height:100%}
  .hero-price{left:12px;bottom:12px;padding:11px 12px}
  .info-strip,.tiers,.steps,.qty-grid,.microtrust,.footer-grid{grid-template-columns:1fr}
  .section{padding:52px 0}.section-head,.review-header{align-items:flex-start;flex-direction:column}
  .product-copy h3{font-size:29px}.price-main{font-size:37px}
  .story-large img{height:320px}.story-stack{grid-template-columns:1fr 1fr;grid-template-rows:auto}.story-small img{height:170px}
  .product-info h1{font-size:32px}.buy-row{flex-direction:column}
  .page-hero{padding-top:26px}.page-hero-box{padding:25px 20px;border-radius:20px}
  .legal-content h2{font-size:21px}
  .footer-bottom{flex-direction:column}
  .form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}
  .review{width:285px}@keyframes reviews{from{transform:translateX(0)}to{transform:translateX(calc(-299px * 3))}}
}